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1. WO2022009097 - SYSTEM AND METHOD FOR HEAT EXCHANGER CONTROL BASED ON REAL-TIME CORROSION MONITORING

Publication Number WO/2022/009097
Publication Date 13.01.2022
International Application No. PCT/IB2021/056056
International Filing Date 06.07.2021
IPC
F28F 19/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
19Preventing the formation of deposits or corrosion, e.g. by using filters
CPC
F22B 37/025
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
22STEAM GENERATION
BMETHODS OF STEAM GENERATION; STEAM BOILERS
37Component parts or details of steam boilers
02applicable to more than one kind or type of steam boiler
025Devices and methods for diminishing corrosion, e.g. by preventing cooling beneath the dew point
F28D 2021/0024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
21Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
0019Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
0024for combustion apparatus, e.g. for boilers
F28D 7/085
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
7Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
08the conduits being otherwise bent, e.g. in a serpentine or zig-zag
082with serpentine or zig-zag configuration
085in the form of parallel conduits coupled by bent portions
F28F 19/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
19Preventing the formation of deposits or corrosion, e.g. by using filters ; or scrapers
F28F 2200/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
2200Prediction; Simulation; Testing
F28F 27/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28HEAT EXCHANGE IN GENERAL
FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
27Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
Applicants
  • GENERAL ELECTRIC TECHNOLOGY GMBH [CH]/[CH]
Inventors
  • VITSE, Frederic
Agents
  • VANDERLEEDEN, Kevin H.
  • SIMPSON, Robert P.
Priority Data
16/924,40709.07.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEM AND METHOD FOR HEAT EXCHANGER CONTROL BASED ON REAL-TIME CORROSION MONITORING
(FR) SYSTÈME ET PROCÉDÉ DE RÉGULATION D'ÉCHANGEUR DE CHALEUR SUR LA BASE D'UNE SURVEILLANCE DE CORROSION EN TEMPS RÉEL
Abstract
(EN) A system and method of controlling corrosion of a heat exchanger, having a hot gas inlet and outlet and a cold side inlet and outlet. The method includes determining a temperature of the heat exchanger at a first selected location, controlling a temperature of a corrosion sensing device to a first selected temperature based on the temperature of the surface of the heat exchanger and determining a corrosion rate associated with the heat exchanger surface at the first selected location for the first selected temperature. The method also includes comparing the corrosion rate to an expected corrosion rate, determining a cold side fluid inlet temperature target for the heat exchanger based at least in part on the comparing, the determined corrosion; and controlling a cold side fluid inlet temperature based at least in part on the determined inlet temperature target, determined corrosion rate, and expected corrosion rate.
(FR) Système et procédé de régulation de la corrosion d'un échangeur de chaleur, comprenant une entrée et une sortie de gaz chaud et une entrée et une sortie côté froid. Le procédé consiste à déterminer une température de l'échangeur de chaleur à un premier emplacement sélectionné, à réguler une température d'un dispositif de détection de corrosion à une première température sélectionnée sur la base de la température de la surface de l'échangeur de chaleur, et à déterminer une vitesse de corrosion associée à la surface d'échangeur de chaleur au premier emplacement sélectionné pour la première température sélectionnée. Le procédé consiste également à comparer la vitesse de corrosion à une vitesse de corrosion attendue, à déterminer une cible de température d'entrée de fluide côté froid pour l'échangeur de chaleur sur la base, au moins en partie, de la comparaison de la corrosion déterminée, et à réguler une température d'entrée de fluide côté froid sur la base, au moins en partie, de la cible de température d'entrée déterminée, de la vitesse de corrosion déterminée et de la vitesse de corrosion attendue.
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