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1. (WO2018052524) METHODS AND SYSTEM FOR CONTROLLING A COMBINATION BOILER
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Pub. No.: WO/2018/052524 International Application No.: PCT/US2017/042743
Publication Date: 22.03.2018 International Filing Date: 19.07.2017
IPC:
F24H 9/20 (2006.01) ,F23N 5/02 (2006.01) ,F23N 5/20 (2006.01) ,F24D 19/10 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
H
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL
9
Details
20
Arrangement or mounting of control or safety devices
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
N
REGULATING OR CONTROLLING COMBUSTION
5
Systems for controlling combustion
02
using devices responsive to thermal changes or to thermal expansion of a medium
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
N
REGULATING OR CONTROLLING COMBUSTION
5
Systems for controlling combustion
20
with a time programme acting through electrical means, e.g. using time-delay relays
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
D
DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19
Details
10
Arrangement or mounting of control or safety devices
Applicants:
LOCHINVAR, LLC [US/US]; 300 Maddox Simpson Parkway Lebanon, Tennessee 37090, US
Inventors:
GAGNE, Curtis George,; US
Agent:
BEAVERS, Lucian Wayne; US
Priority Data:
15/265,05514.09.2016US
Title (EN) METHODS AND SYSTEM FOR CONTROLLING A COMBINATION BOILER
(FR) PROCÉDÉS ET SYSTÈME DE COMMANDE D'UNE CHAUDIÈRE SEMI-TUBULAIRE
Abstract:
(EN) A combination boiler provides heated water to a boiler loop and domestic hot water (DHW) to a domestic water loop. The combination boiler includes a primary heat exchanger (PHE) connected to the boiler loop and a burner to provide heat to the primary heat exchanger. A secondary heat exchanger (SHE) transfers heat energy from the boiler loop to the domestic water loop. A controller monitors a PHE inlet temperature and a DHW output temperature, obtains a pre-heat initialization temperature threshold and a pre-heat cancellation temperature threshold, and detects a low temperature condition. A pre-heat operation is initiated responsive to the low temperature condition by circulating heated water from the PHE to the SHE. The burner is selectively fired at least in part according to an outlet temperature of the PHE.
(FR) Selon l'invention, une chaudière semi-tubulaire fournit de l'eau chauffée à une boucle de chaudière et de l'eau chaude domestique chauffée (DHW) à une boucle d'eau chaude domestique. La chaudière semi-tubulaire comprend un échangeur de chaleur primaire (PHE) relié à la boucle de chaudière, et un brûleur pour fournir de la chaleur à l'échangeur de chaleur primaire. Un échangeur de chaleur secondaire (SHE) transfère l'énergie thermique de la boucle de chaudière à la boucle d'eau domestique. Un dispositif de commande surveille une température d'entrée PHE et une température de sortie DHW, obtient un seuil de température d'initialisation de préchauffage et un seuil de température d'annulation de préchauffage, et détecte un état de basse température. Une opération de préchauffage est déclenchée en réponse à l'état de basse température par circulation d'eau chauffée du PHE au SHE. Le brûleur est sélectivement allumé au moins en partie en fonction d'une température de sortie du PHE.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)