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WO2018134703A1 - Appareil de génération de vapeur, système de nettoyage à la vapeur pour faisceaux de tubes et procédé de nettoyage associé - Google Patents

Appareil de génération de vapeur, système de nettoyage à la vapeur pour faisceaux de tubes et procédé de nettoyage associé Download PDF

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Publication number
WO2018134703A1
WO2018134703A1 PCT/IB2018/050150 IB2018050150W WO2018134703A1 WO 2018134703 A1 WO2018134703 A1 WO 2018134703A1 IB 2018050150 W IB2018050150 W IB 2018050150W WO 2018134703 A1 WO2018134703 A1 WO 2018134703A1
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WO
WIPO (PCT)
Prior art keywords
steam
water
oil
cleaning
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.)
Ceased
Application number
PCT/IB2018/050150
Other languages
English (en)
Inventor
Riccardo VESCOVO
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP18703622.3A priority Critical patent/EP3571442A1/fr
Publication of WO2018134703A1 publication Critical patent/WO2018134703A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/002—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour incorporating means for heating or cooling, e.g. the material to be sprayed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices or arrangements for removing water, minerals or sludge from boilers ; Arrangement of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/52—Washing-out devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/56—Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
    • B05B13/0214—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe the liquid or other fluent material being applied to the whole periphery of the cross section of the elongated body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2230/00—Other cleaning aspects applicable to all B08B range
    • B08B2230/01—Cleaning with steam
    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material

Definitions

  • Such purpose is achieved by a steam apparatus, a cleaning system, a tube bundle cleaning plant, a tube bundle cleaning and water treatment plant, an inerting system, a steam generation method and a tube bundle cleaning method according to the attached independent claims.
  • the claims dependent thereon describe preferred variant embodiments.
  • FIG. 1 is a schematic view of a steam apparatus connected to a tube bundle cleaning apparatus of a boiler heat exchanger, forming a cleaning system according to an embodiment of the present invention
  • FIG. 1 is a schematic view of a steam apparatus according to a second embodiment of the present invention connected to a tube bundle cleaning apparatus of a boiler heat exchanger;
  • FIG. 3 is a schematic view of a pipe bundle cleaning and water treatment plant according to an embodiment of the present invention.
  • a steam apparatus for generating steam for cleaning the outer surface of tube bundles 100 of a heat exchanger is indicated collectively at 1.
  • tube bundles is understood to mean equally any other type of exchange surface, known per se to a person skilled in the art and implemented in a surface-type exchanger, wherein the fluids involved in the heat exchange are separated from said exchange surface (for example finned tubes, finned pack, micro channels and the like) .
  • exchange surface means the surface affected by the hot fumes of a boiler on which the deposits to be cleaned accumulate.
  • the apparatus 1 is suitable to be associated with a system 200 for the production of high temperature diathermic oil, for example a boiler 201 with diathermic oil comprising a heat exchanger with diathermic oil, or, in any case, with a heating system wherein it is heated a high temperature circulation fluid (for example hot fumes) by means of a known type of boiler.
  • a system 200 for the production of high temperature diathermic oil for example a boiler 201 with diathermic oil comprising a heat exchanger with diathermic oil, or, in any case, with a heating system wherein it is heated a high temperature circulation fluid (for example hot fumes) by means of a known type of boiler.
  • a high temperature circulation fluid for example hot fumes
  • the steam apparatus 1 may therefore be associated with a boiler comprising a burner arranged in a combustion chamber, below which, for example, an ash pan is provided, usually below the furnace grid, wherein the combustion ash accumulates (if the fuel is solid) .
  • a chimney for the evacuation of exhaust combustion fumes.
  • the fluid to be heated for example, diathermic oil
  • the steam apparatus 1 comprises an oil-water heat exchanger 2, supplied with high temperature diathermic oil D.O. from an oil supply system 300 and with water H20 from a water supply unit 4.
  • the oil supply system 300 is, for example, a series of pipes which transport diathermic oil heated to a high temperature; in the same way, the water supply unit 4 comprises, for example, a water tank and a series of pipes which carry water H20, preferably already purified.
  • the exchanger is suitable to heat water H20 due to a first heat exchange between the diathermic oil D.O. and the water H20.
  • This heat exchange is suitable to store a quantity of heat in water H20, obtaining superheated water, such as to allow the generation of steam S by flash evaporation (also known as partial evaporation) of superheated water H20.
  • the steam S generated by flash evaporation is supplied by a steam delivery device, for example a valve 531, connected to the oil-water heat exchanger 2 and which may be activated to supply the steam according to certain conditions inside the oil-water exchanger 2.
  • a steam delivery device for example a valve 531
  • the steam S is delivered as a function of a predetermined pressure and temperature level reached by the water H20 inside the oil-water exchanger 2.
  • the steam apparatus 1 comprises a diathermic oil tank 10, a water tank 11 and the oil-water exchanger 2.
  • the water tank 11 is suitable to contain simultaneously superheated H20 water in equilibrium with steam S.
  • a water level regulator (not shown in the figures) is installed on the water tank 11 suitable to regulate the entry of water into the water tank 11 from the water supply unit 4 so as to maintain a certain level of water and steam S in equilibrium with each other.
  • the diathermic oil tank 10 and the water tank 11 are enclosed in a single tank and divided and mutually sealed between them by a wall 600 inside the tank .
  • the oil-water exchanger 2 and the water tank 11 are made as a single device, wherein the tube bundle 2' which carries the diathermic oil D.O. is immersed in the water H20 of the water tank 11.
  • the diathermic oil tank 10, the water tank 11 and the oil-water exchanger 2 are integrated in a single device.
  • a condensate separator is enclosed within the water tank 11, preferably a cyclone separator .
  • the water tank 11 comprises an outlet port 111, for the outlet of steam S from the water tank 11 to a steam cleaning apparatus 7, suitable to clean the outer surface of tube bundles of a heat exchanger, for example a heat exchanger for a boiler.
  • the steam S is superheated by means of a further heat exchange between the steam S and the diathermic oil D.O.
  • the superheated steam circuit 5 is suitable to superheat the steam S by means of further heat exchange between such steam S and the water H20 heated by the oil-water exchanger 2 contained in the tank 11.
  • the further heat exchange allows the temperature of the steam S supplied by the tank 11 to be raised so as to generate superheated steam S' .
  • the superheated steam S' is superheated to a superheated temperature suitable to allow one to obtain a vapor quality of at least 70% or greater, preferably at least equal to 85% or higher, even more preferably at least equal to 90% or higher, once such steam S is expanded by the nozzles for cleaning the outer surface of the tube bundles 100.
  • the superheating takes place at constant pressure (or with a pressure variation linked only to the pressure drops of the exchangers, which may be considered negligible) .
  • the superheating circuit 5 Preferably, on the superheating circuit 5 is installed a steam-oil exchanger 51 immersed in the oil of the diathermic oil tank 10 and/or a steam-water exchanger 52 immersed in the water of the water tank 11.
  • the superheating circuit performs a heat exchange only with the diathermic oil D.O. (by means of the steam-oil exchanger 51) or only with the water H20 (by means of the steam-water exchanger 52) or with both (i.e. either by means of the steam-oil exchanger 51 or by the steam-water exchanger 52 ) .
  • the steam apparatus 1 comprises a steam channeling path 6 suitable to be interfaced on one side with the cleaning apparatus 7 of the outer surface of the tube bundles 100 of a boiler exchanger and on the other side with the superheating circuit 5 and/or with the outlet port 111 of the oil-water heat exchanger 2.
  • This channeling path 6 (for example one or more pipes) is suitable to convey a flow of steam coming from the oil- water heat exchanger 2 towards the cleaning apparatus 7.
  • the cleaning apparatus 7 is, for example, a high- pressure steam delivery system by means of steam lances 71, 72.
  • the channeling path 6 is suitable for channeling a flow of steam coming from the steam superheating circuit 5, so as to send a flow of superheated steam S' to the steam lances 71, 72.
  • the steam S (preferably saturated steam) delivered by the outlet port 111 is conveyed directly to the channeling path 6 or, before being sent to the channeling path 6, is diverted towards the superheating circuit 5, so as to be superheated.
  • the path followed by the steam flow is adjusted by adjustment means 53 of said steam flow (for example at least one valve) , suitable to channel the flow of steam from the oil-water heat exchanger 2 to the channeling path 6 or to the steam superheating circuit 5.
  • the adjustment means 53 are installed either on a connection path 8, which connects the outlet port 111 with the channeling path 6, or on the steam superheating circuit 5.
  • a second valve 532 is installed on the connection path 8 between the inlet 54 of the superheating circuit 5 and the outlet 55 of the superheating circuit, in a portion of the path which bypasses the steam superheating circuit 5.
  • a third valve 533 is, for example, installed on the superheating circuit 5, between the inlet 54 of the superheating circuit 5 and the outlet 55 of the superheating circuit 5, for example near such outlet 55.
  • the first valve 531 is suitable to enable the delivery of steam from the water tank 11 towards the downstream system sections, that is towards the superheating circuit 5 and the channeling path 6.
  • the second valve 532 is suitable to enable the passage of steam S from the connecting path 8 directly towards the channeling path 6.
  • the third valve 533 is suitable to enable the passage of superheated steam S' from the superheating circuit 5 towards the channeling path 6.
  • the adjustment means 53 are configured so as to allow a first supply of steam S coming from the outlet port 111 towards the channeling path 6 so as to preheat the pipes of such path 6. Moreover, the same adjustment means 53 are suitable for allowing the delivery of superheated steam S' coming from the steam superheating circuit 5 towards the channeling path 6 (and therefore towards the cleaning apparatus 7) .
  • the superheated steam S' delivered towards the lances 71, 72 provides a constant supply pressure to the lances.
  • the temperature of the superheated steam S' being fed to the nozzles 711, 721 is such as to avoid that during the condensation phase (during the expansion of the steam from the nozzles) the steam quality exiting the nozzles is too low and is such as to form water droplets harmful to the surface of the tube bundle 100.
  • a control system (not shown in the accompanying figures) is suitable for modulating the opening/closing of the valves 532 and 533 such that a predetermined pair of pressure and temperature values of the superheated steam S' feeds the lances 71, 72.
  • valves 531, 532, 533 may be achieved by means of equivalent adjustment devices, known to the person skilled in the art and arranged in such a way as to carry out the same function described in the preceding paragraph.
  • an alternative variant may provide, in place of the valve 532, a simple bottleneck, or more generally a pressure drop, suitably calibrated such that the steam S is preferentially routed through such bottleneck only during the preheating step, when the valve 533 is closed.
  • This method comprises the step of generating steam S (preferably at least saturated steam) by means of flash evaporation of superheated water due to a heat exchange between diathermic oil (at high temperature) and water.
  • steam S preferably at least saturated steam
  • the method also comprises the step of superheating the steam S generated by flash evaporation by means of heat exchange between this steam S and diathermic oil and/or water, for example to obtain superheated steam.
  • the method preferably also comprises the step of associating a steam apparatus 1 as described in the preceding paragraphs with a cleaning apparatus 7 of tube bundles and with a system for the production of high temperature diathermic oil, for example a diathermic oil boiler.
  • a sequence of steps is described which carry out the cleaning of tube bundles of a boiler exchanger by means of a steam apparatus 1 and a cleaning apparatus 7 as previously described (and therefore forming the cleaning system) .
  • the method provides that in a first step a mass of liquid water is heated by means of heat exchange with a high temperature diathermic oil (between 150°C and 250°C inclusive), for example in the water tank 11.
  • Heating the mass of water inside the closed water tank 11 leads to an increase in the temperature and pressure inside the tank.
  • the water tank 11 is an isochoric system, wherein the steam delivery device (for example the valve 531) is kept closed for a certain time interval, necessary to obtain superheated water.
  • the steam delivery device for example the valve 531
  • this step preferably flash evaporation is not generated and inside the water tank 11 superheated water H20 is at the same time present in equilibrium with steam S .
  • the steam generation method does not generate steam continuously, but discontinuously ("batch" mode) : a first step involves the accumulation of heat without generating steam for a certain time interval suitable for superheating the water contained in the water tank 11; a second step involves the generation of flash steam, with a consequent reduction in pressure and temperature inside the water tank 11.
  • the method provides for preheating the pipes of the channeling path 6 by channeling a first flow of steam S coming from the oil-water heat exchanger 2, for example before the steam S is superheated in the superheating path 5.
  • the channeling path 6 may also comprise pipes of considerable length, depending on the size and type of system. In particular, in these cases, therefore, the preheating phase minimizes the formation of condensate inside the pipes of the channeling path 6, which is harmful during cleaning.
  • the preheating step is performed by closing the third valve 533 and opening the second valve 532.
  • valve means 700 are suitable to prevent the flow of steam S from being delivered into the cleaning apparatus 7.
  • the steam S delivered during this preheating step is finally dispersed or discharged in an area specially designed for this purpose (cooling and drainage area) or is channeled towards a steam recovery path 9.
  • This steam recovery path 9 is for example connected to a water treatment system 20, for example as shown in figure 3, or to a steam/condensate recovery tank.
  • figure 3 illustrates an embodiment of the invention in which the steam apparatus 1 is also connected to a water treatment system 20.
  • the steam recovery path 9 is connected to a water treatment system comprising a steam in water bubbler 21.
  • a water treatment system comprising a steam in water bubbler 21.
  • the steam S used for the preheating phase of the pipes is bubbled into the water treatment system 20.
  • the bubbling of hot steam in the water thus contributes to the process of water treatment and purification.
  • This water treatment process preferably involves the removal of gases dissolved in water H20 and potentially harmful in the subsequent steps of use of the water itself.
  • gases dissolved in water H20 and potentially harmful in the subsequent steps of use of the water itself.
  • oxygen may be particularly aggressive/corrosive to pipes/tanks
  • carbon dioxide is a precursor of encrusting carbonates.
  • the water treatment system 20 also includes other treatment apparatuses 22, 23 suitable for further chemical-physical treatments for water purification.
  • the method comprises the superheating step of the steam S by means of heat exchange between the steam S and the diathermic oil and/or the water to obtain a superheated steam S' (for example by means of heat exchange inside the exchangers 51 and/or 52) .
  • the superheated steam S' is delivered into the channeling path 6, and then to the cleaning apparatus.
  • the supply of superheated steam S' takes place, for example, by opening the third valve 533 and closing the second valve 532.
  • the superheated steam S' upstream of the lances 71,72 has a high pressure of between 2 and 20 bar, preferably between 5 and 15 bar, and a temperature of between 150° and 300°, preferably between 180° and 250°.
  • the nozzles 711, 721 present on the lance are suitable to expand the superheated steam S' (at high pressure) to the working pressure of the boiler (generally at a pressure very close to atmospheric pressure) , transforming the potential energy (high pressure and temperatures) into kinetic energy (high speed expanded steam jet, for example about 300-500 m/s) .
  • the superheated steam S' is delivered in the form of a high kinetic energy steam jet from the cleaning lances 71,72 through the nozzles 711, 721 and acts on the outer surface 101 of the tube bundles 100 of the exchanger to be cleaned.
  • the steam apparatus 1, the cleaning apparatus 7 and the water treatment system 20 by means of steam bubbling, when connected to each other, create therefore a single tube bundle cleaning and water treatment plant.
  • a further variant embodiment of the steam apparatus 1 is particularly suitable to be associated with heating systems or boilers which do not per se provide for the generation of diathermic oil or a hot fluid in circulation.
  • the steam apparatus 1 comprises an oil-fume heat exchanger 12, suitable to exchange heat between hot fumes H.F. (for example coming from a burner of a boiler or a small burner installed for this purpose) and diathermic oil D.O. circulating in an oil supply system 300.
  • the oil supply system 300 is for example made up of only the diathermic oil tank 10 or is a diathermic oil circulation system between the diathermic oil tank 11 and the oil-water exchanger 2.
  • the steam apparatus 1 is associated with a boiler which does not provide for the use of high temperature diathermic oil (for example a saturated steam boiler, or a pressurized water boiler, or any particular diathermic oil boilers which for any reason cannot be used directly in the apparatus according to the present invention) .
  • the steam apparatus 1 comprises a water-fume heat exchanger 13, suitable for exchanging heat between hot fumes coming from a burner of a boiler and water H20 present in the steam apparatus 1.
  • the water-fume heat exchanger 13 is connected in series to the oil-fume heat exchanger 12 (as illustrated in figure 2) .
  • the steam apparatus according to the present invention makes it possible to compensate for the lack of dry steam for cleaning tube bundles of boilers which do not per se provide steam generation. Furthermore, the present invention allows the generation of dry steam with a higher yield compared to the yields of the prior art which provide for the use of compressed air.
  • the use of the same hot fluid (diathermic oil or hot fumes) coming from the boiler allows to drastically increase the efficiency of the boiler-cleaning system.
  • the steam apparatus is configured to inert the combustion chamber of the boiler to which it is associated, in such a way as to dampen and/or extinguish possible fires.
  • the steam S is delivered directly inside the combustion chamber of the boiler through the same lances used for cleaning, or through dedicated dispensing means.
  • the result is a fire protection system integrated into the cleaning system, which eliminates the use of cumbersome and expensive inerting gas tanks.
  • the steam is supplied in such a way as to supply a sufficient amount to inert the entire combustion chamber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cleaning In General (AREA)

Abstract

La présente invention concerne un appareil à vapeur (1) permettant de nettoyer la surface externe du faisceau de tubes d'un échangeur de chaudière et comprenant un échangeur de chaleur huile-eau (2), alimenté en huile à haute température (D.O.) en provenance d'un système d'alimentation en huile (300) et en eau (H2O) en provenance d'une unité d'alimentation en eau (4). L'échangeur huile-eau (2) est conçu pour chauffer de l'eau (H2O) suite à un premier échange de chaleur entre l'huile diathermique D.O. et l'eau H2O pour obtenir de l'eau (H2O) surchauffée. Un dispositif de distribution de vapeur (531), par exemple une soupape, est associé à l'échangeur de chaleur huile-eau (2) et est conçu pour distribuer la vapeur (S) pour nettoyer la surface externe des faisceaux de tubes suite à une évaporation flash de ladite eau (H2O) surchauffée.
PCT/IB2018/050150 2017-01-19 2018-01-10 Appareil de génération de vapeur, système de nettoyage à la vapeur pour faisceaux de tubes et procédé de nettoyage associé Ceased WO2018134703A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18703622.3A EP3571442A1 (fr) 2017-01-19 2018-01-10 Appareil de génération de vapeur, système de nettoyage à la vapeur pour faisceaux de tubes et procédé de nettoyage associé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000005550A IT201700005550A1 (it) 2017-01-19 2017-01-19 Apparato a vapore, sistema di pulizia a vapore per fasci tubieri di uno scambiatore, sistema di inertizzazione e impianto
IT102017000005550 2017-01-19

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Publication Number Publication Date
WO2018134703A1 true WO2018134703A1 (fr) 2018-07-26

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PCT/IB2018/050150 Ceased WO2018134703A1 (fr) 2017-01-19 2018-01-10 Appareil de génération de vapeur, système de nettoyage à la vapeur pour faisceaux de tubes et procédé de nettoyage associé

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EP (1) EP3571442A1 (fr)
IT (1) IT201700005550A1 (fr)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116294222A (zh) * 2023-02-16 2023-06-23 江阴美源实业有限公司 一种导热油热力回收利用系统
RU2803719C1 (ru) * 2023-04-07 2023-09-19 Общество с ограниченной ответственностью "Инженерные Технологии" Технологический блок пропарки труб

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225836A1 (de) * 1972-05-26 1973-12-06 Kaercher Fa Alfred Dampferzeugungseinrichtung fuer eine betonherstellungsanlage
WO2014142736A1 (fr) * 2013-03-08 2014-09-18 Soottech Ab Procédé et agencement pour réduire les vibrations dans un flux de vapeur de soufflage de suie dans une chaudière

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2225836A1 (de) * 1972-05-26 1973-12-06 Kaercher Fa Alfred Dampferzeugungseinrichtung fuer eine betonherstellungsanlage
WO2014142736A1 (fr) * 2013-03-08 2014-09-18 Soottech Ab Procédé et agencement pour réduire les vibrations dans un flux de vapeur de soufflage de suie dans une chaudière

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116294222A (zh) * 2023-02-16 2023-06-23 江阴美源实业有限公司 一种导热油热力回收利用系统
RU2803719C1 (ru) * 2023-04-07 2023-09-19 Общество с ограниченной ответственностью "Инженерные Технологии" Технологический блок пропарки труб

Also Published As

Publication number Publication date
EP3571442A1 (fr) 2019-11-27
IT201700005550A1 (it) 2018-07-19

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