FR2484602A1 - Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler - Google Patents

Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler Download PDF

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Publication number
FR2484602A1
FR2484602A1 FR8013570A FR8013570A FR2484602A1 FR 2484602 A1 FR2484602 A1 FR 2484602A1 FR 8013570 A FR8013570 A FR 8013570A FR 8013570 A FR8013570 A FR 8013570A FR 2484602 A1 FR2484602 A1 FR 2484602A1
Authority
FR
France
Prior art keywords
boiler
tank
installation according
heat generator
heat exchanger
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
FR8013570A
Other languages
French (fr)
Other versions
FR2484602B3 (en
Inventor
Ermano Bo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBM SA
Original Assignee
BBM SA
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 BBM SA filed Critical BBM SA
Priority to FR8013570A priority Critical patent/FR2484602A1/en
Publication of FR2484602A1 publication Critical patent/FR2484602A1/en
Application granted granted Critical
Publication of FR2484602B3 publication Critical patent/FR2484602B3/fr
Granted legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0138—Shape tubular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0147—Shape complex
    • F17C2201/0157—Polygonal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0388—Localisation of heat exchange separate
    • F17C2227/0393—Localisation of heat exchange separate using a vaporiser
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Abstract

The evaporator may be stationary or mobile, and consists of a thermally-insulated tank closed by a roof. The tank is filled with water, and contains a heat exchanger formed by serpentine coils. Alongside the heat exchanger, and immersed in the water, is a boiler, which is heated by a fuel or gas burner. The evaporator also contains pressure control- and safety- devices. The boiler pref. occupies the entire length of one side of the tank, whereas the exchanger fills the other side; and the external surface of the boiler is pref. provided with fins promoting heat transfer to the water. Used e.g. for the conversion of liq. N2, O2, or H2 into gas, the present invention provides a simplified evaporator in comparison with prior art.

Description

Installation autonome de vaporisation de fluides cryogéni- ques.Autonomous installation for spraying cryogenic fluids.

La présente invention concerne une installation autonome de vaporisation permettant de transformer des fluides cryo géniquestels que par exemple l'azote, l'oxygène, l'hydrogène, mais non exclusivement, de l'état liquide à l'état gazeux par réchauffage desdits fluides circulant dans un faisceau tubulaire immergé à l'intérieur d'un bac. The present invention relates to an autonomous vaporization installation making it possible to transform genetically generated cryo fluids such as, for example, nitrogen, oxygen, hydrogen, but not exclusively, from the liquid state to the gaseous state by heating said circulating fluids in a tubular bundle immersed inside a tank.

Dans le brevet français nO 77 23352 on a décrit une centrale du genre susmentionné comprenant un générateur de chaleur, un bac calorifugé, un circuit de réchauffage de l'eau du bac, un échangeur comportant un ou plusieurs serpentins immergés dans le bac, des moyens de régulation de pression et de contrBle de sécurité, le générateur de chaleur pouvant être une source d'eau chaude ou l'atmosphère ambiante ou un gaz comprimé et chauffé, ces éléments étant fixes ou installés sur un véhicule routier. Le circuit de réchauffage provenant du générateur de chaleur se répartit dans un collecteur immergé dans le bac dont les tuyaux percés à leur partie inférieure forment des rampes de diffusion de l'eau chaude vers le bas du bac.L'eau de réchauffage est recyclée par pompage et ramenée dans un collecteur en rapport avec la tuyauterie de retour au générateur de chaleur. Le circu-it de recyclage comporte un autorégulateur de température commandant une vanne à trois voies pour orientation de l'eau soit vers la chaudière pour remise en température, soit vers le bac. In French patent No. 77 23352, a plant of the aforementioned type has been described comprising a heat generator, an insulated tank, a circuit for reheating the water in the tank, an exchanger comprising one or more coils immersed in the tank, means pressure regulation and safety control, the heat generator being able to be a source of hot water or the ambient atmosphere or a compressed and heated gas, these elements being fixed or installed on a road vehicle. The heating circuit from the heat generator is distributed in a collector immersed in the tank, the pipes pierced at the bottom of which form diffusion ramps of hot water towards the bottom of the tank. The heating water is recycled by pumping and brought back to a collector in connection with the return pipe to the heat generator. The recycling circu-it includes a temperature autoregulator controlling a three-way valve for orienting the water either to the boiler for reheating, or to the tank.

Le but de l'invention est de simplifier la centrale susmentionnée. Pour atteindre ce but on a imaginé d'incorporer le générateur de chaleur directement dans le bac ce qui permet de supprimer notamment le système de pompage, de régulation, de recyclage ainsi que les rampes de diffusion et de récupération de l'eau chaude. The object of the invention is to simplify the above-mentioned plant. To achieve this goal, we have imagined incorporating the heat generator directly into the tank, which in particular eliminates the pumping, regulation, recycling system as well as the diffusion and recovery ramps for hot water.

L'installation est constituée par un bac calorifugé fermé par un capot supérieur, également calorifugé, contenant sans séparation d'un cBté l'échangeur ou vaporiseur et de l'autre
la chaudière et ses conduits de fumée, ces ensembles étant
immergés dans l'eau que la chaudière met en température
pour que le fluide circulant dans le vaporiseur se trans
forme en gaz.The installation consists of an insulated tank closed by an upper cover, also insulated, containing without separation from one side the exchanger or vaporizer and the other
the boiler and its flues, these assemblies being
immersed in the water that the boiler warms up
so that the fluid circulating in the vaporizer is trans
gas form.

Les moyens de régulation de la chaudière, ceux de régula
tion et de contrôle de la pression dans l'échangeur ainsi
que les contrôles de sécurité et le dispositif d'alarme qui
ont été décrits dans le premier brevet se retrouvent adap
tés aux appareils utilisés dans la présente invention. De
même cette installation peut être montée sur un véhicule
routier pour traitement des fluides sur leur lieu d'utilisa
tion, notamment pour inerter des cuves de fuel dans le cas
d'azote.The means of regulating the boiler, those of regula
tion and pressure control in the exchanger as well
that security checks and the alarm device that
were described in the first patent are found adap
tees to the apparatuses used in the present invention. Of
even this installation can be mounted on a vehicle
truck for treatment of fluids at their place of use
tion, in particular to inert fuel tanks in the case
nitrogen.

Dans ce qui suit l'invention est exposée plus en détail à
l'aide de dessins représentant seulement un mode d'exécution:
- La figure 1 est une vue en coupe schématique de l'ins
tallation de vaporisation de-fluides cryogéniques dont il
s'agit au niveau du compartiment de la chaudière
- La figure 2 est une vue en coupe de côté suivant II-II
de la figure 1
- La figure 3 est une vue en plan par dessus, le capot du
bac enlevé.In what follows the invention is explained in more detail in
using drawings representing only one embodiment:
- Figure 1 is a schematic sectional view of the ins
vaporization plant for cryogenic fluids of which
is at the level of the boiler compartment
- Figure 2 is a side sectional view along II-II
of figure 1
- Figure 3 is a plan view from above, the cover of the
bin removed.

L'installation représentée sur les dessins est essentiel
lement constituée par un bac 1 calorifugé à double paroi,
fermé par un capot 2 et dans lequel est implanté, d'un côté
un vaporiseur et de l'autre un générateur de chaleur.The installation shown in the drawings is essential
Lement constituted by a thermally insulated tank 1 with double wall,
closed by a cover 2 and in which is implanted, on one side
one vaporizer and the other a heat generator.

Dans l'exemple représenté, le générateur de chaleur est
une chaudière 3 à fuel ou à gaz dont le foyer cylindrique oc
cupe presque toute la longueur du bac 1 et est surmonté d'un
collecteur de fumée relié à la trémie 5 d'une cheminée 9 par
des conduits de fumées 7 qui côtoient parallèlement le foyer
de la chaudière à la partie supérieure du bac 1. Ces conduits 'de fumée 7 débouchent dans la trémie 5 au droit d'une chicane
verticale 8 dont elle est équipée.Les fumées sont ensuite di
rigées dans la cheminée 9 qui prolonge la trémie 5 sur un
des côtés du bac 1. La partie saillante de ladite cheminée 9
est rabattable comme l'illustrent les traits mixtes de la
figure 2. L'extrémité supérieure de la cheminée 9 est équi
pée d'un extracteur statique ou dynamique des fumées, non représenté sur les figures.Sur le côté du bac opposé à la cheminée 9 est prévu le montage du brûleur 10 équipant la chaudière.In the example shown, the heat generator is
a fuel or gas boiler 3 with a cylindrical hearth oc
cuts almost the entire length of tray 1 and is topped with a
smoke collector connected to the hopper 5 of a chimney 9 by
smoke ducts 7 which run parallel to the hearth
from the boiler to the upper part of the tank 1. These smoke ducts 7 open into the hopper 5 in line with a baffle
vertical 8 with which it is fitted. The fumes are then di
rigged in the chimney 9 which extends the hopper 5 on a
sides of tank 1. The projecting part of said chimney 9
folds down as illustrated by the mixed lines of the
figure 2. The upper end of the chimney 9 is equi
of a static or dynamic fume extractor, not shown in the figures. On the side of the tank opposite the chimney 9, the burner 10 fitted to the boiler is provided.

A la manière connue, le vaporiseur est un échangeur comprenant deux serpentins, l'un 11 dit serpentin principal comporte une entrée 12 qui dessert un premier collecteur 13 transversal duquel part un faisceau de tuyaux parallèles qui serpentent du bas vers le haut du bac en plusieurs allers et retours (figure. 2), repris à chaque extrémité par des collecteurs successifs dont le dernier 14 aboutit aux sorties 15 du fluide à.l'état gazeux qui part vers le réseau de distribution. In the known manner, the vaporizer is an exchanger comprising two coils, one 11 said main coil has an inlet 12 which serves a first transverse manifold 13 which leaves a bundle of parallel pipes which wind from the bottom to the top of the tank in several back and forth (Figure. 2), taken up at each end by successive collectors, the last 14 of which leads to the outlets 15 of the fluid in the gaseous state which leaves towards the distribution network.

Le second serpentin 16 visible figure 2 comporte une entrée desservant un faisceau de tuyaux parallèles situé sous le faisceau de tuyaux du serpentin principal et remonte vers une sortie située symétriquement à l'entrée. Le fluide gazeux qui sort alimente un circuit d'activation de débit du fluide liquide du serpentin principal 11. The second coil 16 visible in FIG. 2 has an inlet serving a bundle of parallel pipes situated under the bundle of pipes of the main coil and goes up towards an outlet situated symmetrically at the inlet. The gaseous fluid which leaves feeds a circuit for activating the flow rate of the liquid fluid of the main coil 11.

A la manière connue les serpentins 1 et 16, les conduits de fumées 7 et la chaudière 3 sont maintenus par des châs- sis antivibratoires non représentés sur les dessins ; un contrôleur de niveau équipe le bac et déclenche l'ouverture d'un robinet d'alimentation d'eau pour rétablir l'équilibre fonctionnel ; la chaudière 3 et son brtleur 10 sont équipés des appareils traditionnels de régulation et de contrôle, thermomètre, manomètre, soupape de sOreté, système d'alarme tous les éléments de régulation de l'installation sont manoeuvrés pneumatiquement et/ou électriquement. In the known manner, the coils 1 and 16, the flue pipes 7 and the boiler 3 are held by anti-vibration frames not shown in the drawings; a level controller equips the tank and triggers the opening of a water supply tap to restore functional balance; the boiler 3 and its burner 10 are fitted with traditional regulation and control devices, thermometer, pressure gauge, safety valve, alarm system, all the system's regulation elements are operated pneumatically and / or electrically.

L'eau du bac 1 est chauffée à la fois par la chaudière 3 qui est équipée d'ailettes radiales 6 et par les conduits de fumées 7. The water in tank 1 is heated both by the boiler 3 which is fitted with radial fins 6 and by the flue pipes 7.

Le fluide à l'état liquide entre en 12 dans le serpentin principal 11 et ressort gazeux en 15 pour se diriger vers le poste d'utilisation par une canalisation comportant un ensemble de sécurités. The fluid in the liquid state enters at 12 into the main coil 11 and gaseous spring at 15 to go towards the station of use by a pipe comprising a set of safety devices.

La distribution s'effectue par la canalisation susmentionnée qui est assortie de moyens de régulation et de contrôle
traditionnels
Le fluide à l'état liquide entre églament dans le serpentin 16 dit "de mise en pression rapide où il se transforme en fluide gazeux pour ressortir à l'opposé de l'entrée et retourner au stockage afin d'en accelérer le débit vers le serpentin principal 11. Distribution takes place via the above-mentioned pipeline, which is accompanied by means of regulation and control.
traditional
The fluid in the liquid state enters the coil 16 in the coil known as "rapid pressurization" where it is transformed into gaseous fluid to emerge opposite the inlet and return to storage in order to accelerate the flow towards it. main coil 11.

Claims (6)

Revendications de brevet.Patent claims. 1- Installation autonome, fixe ou mobile, pour la vaporisation de fluides cryogéniques, du genre comprenant un générateur de chaleur (3) un bac (1) calorifugé fermé par un capot (2) également calorifugé, un échangeur comportant plusieurs serpentins (il) (16) immergés dans l'eau du bac (1) des moyens de régulation et de contrôle des pressions et des dispositifs de sécurité, caractérisée par le fait que le générateur de chaleur (3) est incorporé dans le bac (1) où il est immergé aux côtés de l'échangeur (11). 1- Autonomous installation, fixed or mobile, for the vaporization of cryogenic fluids, of the kind comprising a heat generator (3) a tank (1) insulated closed by a cover (2) also insulated, an exchanger comprising several coils (it) (16) immersed in the tank water (1) of regulation and pressure control means and safety devices, characterized in that the heat generator (3) is incorporated in the tank (1) where it is immersed alongside the exchanger (11). 2- Installation suivant la revendication 1, caractérisée par le fait que le générateur de chaleur (3) est implanté dans un côté du bac (1) à double paroi dont il occupe presque toute la longueur tandis que le vaporiseur (11) occupe l'autre côté. 2- Installation according to claim 1, characterized in that the heat generator (3) is located in one side of the tank (1) double wall which it occupies almost the entire length while the vaporizer (11) occupies the other side. 3- Installation suivant la revendication 1, caractérisée par le fait que le générateur de chaleur est une chaudière (3) à fuel ou au gaz notamment mais non exclusivement dont le foyer cylindrique est muni d'ailettes ( 6 ) de diffusion des calories et est surmonté d'un faisceau de conduits de fumées (7) qui côtoient parallèlement ledit foyer de la chaudière à la partie supérieure du bac (1) 3- Installation according to claim 1, characterized in that the heat generator is a boiler (3) fuel oil or gas in particular but not exclusively whose cylindrical hearth is provided with fins (6) of diffusion of calories and is surmounted by a bundle of smoke pipes (7) which run parallel to said boiler hearth at the top of the tank (1) 4- Installation suivant les revendications 1 et S caracté- risée par le fait que les conduits de fumées (7) communiquent avec le foyer de la chaudière (3) au moyen d'un collecteur (4) et avec une cheminée d'évacuation (9) au moyen d'une trémie (5). 4- Installation according to claims 1 and S characterized by the fact that the flues (7) communicate with the boiler hearth (3) by means of a manifold (4) and with a discharge chimney ( 9) by means of a hopper (5). 5- Installation suivant la revendication 4, caractérisée par le fait que la trémie (5) est munie d'une chicane verticale (8) et que la cheminée (9) est rabattable et est munie d'un extracteur statique ou dynamique à son extrémité supérieure. 5- Installation according to claim 4, characterized in that the hopper (5) is provided with a vertical baffle (8) and that the chimney (9) is foldable and is provided with a static or dynamic extractor at its end superior. 6- Installation suivant la revendication 1, caractérisée par le fait que les serpentins (11) et (16), les conduits de fumées (7) et la chaudière (3) sont supportés par des châssis transversaux antivibratoires.  6- Installation according to claim 1, characterized in that the coils (11) and (16), the flues (7) and the boiler (3) are supported by transverse anti-vibration frames.
FR8013570A 1980-06-13 1980-06-13 Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler Granted FR2484602A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8013570A FR2484602A1 (en) 1980-06-13 1980-06-13 Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8013570A FR2484602A1 (en) 1980-06-13 1980-06-13 Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler

Publications (2)

Publication Number Publication Date
FR2484602A1 true FR2484602A1 (en) 1981-12-18
FR2484602B3 FR2484602B3 (en) 1983-04-01

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FR8013570A Granted FR2484602A1 (en) 1980-06-13 1980-06-13 Self:contained evaporator for cryogenic liq. - which is fed through heat exchanger located in water tank heated by submerged boiler

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Also Published As

Publication number Publication date
FR2484602B3 (en) 1983-04-01

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