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1. WO1996004499 - CONTROL ARRANGEMENT FOR THE TEMPERATURE OF THE WATER DRAWN FROM A WATER PIPE

Publication Number WO/1996/004499
Publication Date 15.02.1996
International Application No. PCT/DK1995/000292
International Filing Date 07.07.1995
Chapter 2 Demand Filed 29.02.1996
IPC
F24D 19/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
10Arrangement or mounting of control or safety devices
G05D 23/12 2006.01
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23Control of temperature
01without auxiliary power
12with sensing element responsive to pressure or volume changes in a confined fluid
CPC
F24D 19/1015
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
10Arrangement or mounting of control or safety devices
1006for water heating systems
1009for central heating
1015using a valve or valves
F24D 19/1036
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24HEATING; RANGES; VENTILATING
DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
19Details
10Arrangement or mounting of control or safety devices
1006for water heating systems
1009for central heating
1015using a valve or valves
1036Having differential pressure measurement facilities
G05D 23/1856
GPHYSICS
05CONTROLLING; REGULATING
DSYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
23Control of temperature
185with auxiliary non-electric power
1856with sensing element responsive to pressure or volume change in a confined fluid
Applicants
  • DANFOSS A/S [DK/DK]; DK-6430 Nordborg, DK (AllExceptUS)
  • ANDRESEN, Erik [DK/DK]; DK (UsOnly)
Inventors
  • ANDRESEN, Erik; DK
Common Representative
  • DANFOSS A/S; Patent Dept. DK-6430 Nordborg, DK
Priority Data
P 44 27 846.205.08.1994DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CONTROL ARRANGEMENT FOR THE TEMPERATURE OF THE WATER DRAWN FROM A WATER PIPE
(FR) DISPOSITIF DE REGULATION DE TEMPERATURE DE L'EAU PROVENANT D'UNE CONDUITE
Abstract
(EN)
A control arrangement for the temperature of the water drawn from a water pipe (5) contains a heat exchanger (3) lying with its primary side in series with a flow-adjusting valve (4) in a heated water circuit (2), and with its secondary side in the water pipe (5), a temperature sensor (6) lying in the water pipe (5) downstream of the heat exchanger (3), which temperature sensor converts the measured temperature into a pressure acting on a closure member of the flow-adjusting valve (4) against the force of a spring bearing against the housing (16) of the flow-adjusting valve (4), and a measuring orifice (7) in the water pipe (5). The flow-adjusting valve (4) contains a diaphragm between two chambers (10, 11), of which one (10) is connected to the high pressure side of the measuring orifice (7) and the other (11) is connected to the low pressure side of the measuring orifice (7). The deflection of the diaphragm (9) caused by the differential pressure at the measuring orifice (7) acts against the pressure of the temperature sensor (6) on the closure member of the flow-adjusting valve (4). To provide an energy-saving control arrangement, the diaphragm is rigidly connected to the closure member of the flow-adjusting valve (4) in the closing direction thereof, and its deflection in the opening direction of the flow-adjusting valve (4) is continually correlated with the pressure difference at the measuring orifice (7) and the difference between the spring force and the pressure force of the temperature sensor.
(FR)
Un dispositif de régulation de température de l'eau provenant d'une conduite d'eau (5) comprend un échangeur de chaleur (3) dont le côté primaire est monté en série avec une soupape de débit (4) prévue dans un circuit d'eau réchauffée (2), et dont le côté secondaire est placé dans la conduite d'eau (5), un capteur de température (6) situé dans cette conduite (5) en aval de l'échangeur de chaleur (3) et conçu pour convertir la température mesurée en une pression agissant sur un élément de fermeture de la soupape de débit (4) à l'encontre de la force d'un ressort prenant appui sur le boîtier (16) de la soupape de débit (4), et un orifice de mesure (7) placé dans la conduite d'eau (5). La soupape de débit (4) comporte un diaphragme disposé entre deux chambres (10, 11) dont l'une (10) est reliée au côté haute pression de l'orifice de mesure (7) et l'autre (11) est relié au côté basse pression de cet orifice. La flexion du diaphragme (9) résultant de la différence de pression régnant à l'orifice de mesure s'oppose à la pression exercée par le capteur de température (6) sur l'élément de fermeture de la soupape de débit (4). Ce dispositif de régulation permet d'économiser l'énergie grâce au diaphragme, solidaire de l'élément de fermeture de la soupape de débit (4) dans le sens de sa fermeture, mais dont la flexion en direction de l'ouverture de cette soupape est corrélée en permanence avec la différence de pression enregistrée à l'orifice de mesure (7) et la différence existant entre la force du ressort et la force de pression du capteur de température.
Also published as
SE97002257
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