EP2563980B1 - Méthode de réglage de la pression d'eau dans une zone sous pression - Google Patents

Méthode de réglage de la pression d'eau dans une zone sous pression Download PDF

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Publication number
EP2563980B1
EP2563980B1 EP11733553.9A EP11733553A EP2563980B1 EP 2563980 B1 EP2563980 B1 EP 2563980B1 EP 11733553 A EP11733553 A EP 11733553A EP 2563980 B1 EP2563980 B1 EP 2563980B1
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EP
European Patent Office
Prior art keywords
pressure
water
loop
extraction
open
Prior art date
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EP11733553.9A
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German (de)
English (en)
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EP2563980A2 (fr
Inventor
Enrico GÖTSCH
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GEP Industrie Systeme GmbH
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GEP Industrie Systeme GmbH
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Priority to EP15002566.6A priority Critical patent/EP2975183B1/fr
Priority to DK15002566.6T priority patent/DK2975183T3/en
Publication of EP2563980A2 publication Critical patent/EP2563980A2/fr
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Publication of EP2563980B1 publication Critical patent/EP2563980B1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B5/00—Use of pumping plants or installations; Layouts thereof
    • E03B5/02—Use of pumping plants or installations; Layouts thereof arranged in buildings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F04B49/022—Stopping, starting, unloading or idling control by means of pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2203/00—Motor parameters
    • F04B2203/02—Motor parameters of rotating electric motors
    • F04B2203/0209—Rotational speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B2205/00—Fluid parameters
    • F04B2205/05—Pressure after the pump outlet

Definitions

  • the invention relates to a method and system for water pressure regulation or control in a pressure zone as well as apparatus for carrying out and operating the same.
  • a supply pressure for a fire hydrant in the 40th floor is provided at a height of 120 m
  • the maximum flow pressure in the underground car park - for reasons of occupational safety (eg for firefighters) - may not exceed 8 bar
  • the pressure of 80 MPa (8 bar) was set as the maximum acceptable limit for the firefighter.
  • pressure reducers were often used in the past, although they had been relegated for years normatively (DIN 1988) from extinguishing water systems.
  • the first type of the prior art requires - due to the provision of multiple risers and booster pumps - a high material and technical effort, if predetermined maximum pressures are not to be exceeded, which makes such versions very expensive.
  • the second type is that the pressure regulator and / or pressure reducing valves are very sensitive and therefore can jeopardize the water supply. Their use in extinguishing water is therefore very controversial and should be avoided (see also DIN 1988).
  • the pump must generate a supply pressure of eg 15 bar in order to achieve the required 4.5 bar on the 30th floor. If, on the other hand, a hydrant is actuated in the underground car park, the pump merely has to produce a supply pressure of, for example, 5 bar in order to achieve the same flow pressure there.
  • the corresponding values are stored and in case of a trip on a certain floor, they only have to be requested for this floor. Practically, this is realized, for example, by means of variable-speed pumps, for example pumps with a frequency-controlled three-phase drive.
  • the new supply pressure is set to the value which is most permissible for this further removal station.
  • the setting of the new supply pressure takes place in this case, approximately to the lowest for the removal station at which an error is detected, the maximum allowable supply pressure setpoint So is a mistake in the 50th floor, then in the 4th floor and then in the 3rd-th floor - each without prior detection of any water removal in any floor - detected, and is the desired flow in each floor 4.5 bar, the supply pressure is inventively adjusted so that it on the 3rd-th Floor results in a flow pressure of 4.5 bar - and on the floors above correspondingly less - results in this way, for example, in the aforementioned example, the extinguishing water system can be operated so that when entering the fire event in the parking garage, the speed setpoint for the pump drive so is that the pump then only generates a pressure (supply pressure), in which only 8 bar flow pressure instead of 15 bar F responsibledru ck in the underground car park.
  • a predictive water pressure setting due to fault detection ensures the method of the present invention by the water pressure for the water sampling is set here, which corresponds to the first detected error, since it is assumed that there - or at least close to it - a possible source of fire and here most likely with a subsequent firefighting, ie Water withdrawal is expected.
  • the speed specification for the pump drive can be carried out so that the characteristic of the pump - stored for example in the memory of a computer system used for carrying out the method according to the invention - and thus the associated speed is determined for each supply nominal pressure.
  • the supply pressure ie the pressure generated by the pump in the pressure zone
  • the supply pressure can also be measured by means of a pressure sensor and approximately the speed setpoint of the pump drive can be used as a control variable for the water pressure to be set.
  • the adjustment of the supply pressure is not only based on the geodetic height, but also in dependence on pipe friction losses, which can be done for example by appropriate calibration of the water distribution system and taking into account the values found in the stored for each floor supply pressure values.
  • the detection of water removal at one of the water removal stations can be done in different ways, such as by means of a measuring element that triggers a manual tapping a water tap or by a measuring element that triggers when reaching and / or exceeding a certain water volume flow. Also, the detection of a fault at the water removal station, ie from the water sampling station associated with each measuring element, so about one of a short circuit or cable break can be done so, such as through the use of openers, instead of closer.
  • the speed control or speed control of the pump (more precisely, the pump drive), as conventionally, by means of a regulated - preferably brushless - DC drive drive as a pump drive.
  • a frequency-controlled three-phase drive as a pump drive.
  • the adjustment of the supply pressure in the event that this should be a pressure reduction (at least) done by an actuator or control element, preferably a water drain valve opened as long or a pressure reduction pump is operated for pressure reduction until the new supply pressure is reached or fallen below.
  • the supply pressure is set to the desired value which corresponds to the maximum permissible supply pressure of all sampling stations in the pressure zone (FIG. thus usually the highest permissible supply pressure for the highest located sampling station).
  • the supply pressure in the pressure zone will be 20.5 bar after the detection of all detections on all floors - fault detections as well as water withdrawal detections Ready pressure set so that in the worst case, so as a fire in the 20th-th floor there is immediately sufficient flow pressure at the sampling point available
  • the method according to the invention described here can become problematic in cases in which a particularly long riser pipe is used, for example in large skyscrapers, since the pressure then prevailing in the riser becomes quite high as a result of the water column for the parts of the pipe lying further down. In this case, it is then difficult to quickly provide by means of a drain valve for the required to achieve the highest permissible flow pressure pressure reduction of the supply pressure in the pipe, since the degradation of the water column in any case, when using drain valves that are reasonably cost-effective - may take a while, which may be too long for the lower sections. In conventional systems, which work with multiple pressure zones, this problem does not occur in principle, since here a division of the building into different pressure zones takes place, the individual risers are limited in each case from the height.
  • a pressure reducing device for carrying out the method according to the invention, which is designed so that a water supply pipe, so as the riser at least one check valve which opens in upward flow direction of the water from the water pressure source to the water outlet point and in Turning direction thereby almost only closes because it has an opening which is designed so that the water can thereby pass through in the opposite direction to the aforementioned flow direction due to gravity, so as to - seen in the upflow direction - behind the check valve region of the water supply pipe when closing the check valve free from the pressure that goes beyond the pressure caused by gravity pressure.
  • a small, preferably round hole in the valve of preferably not more than 10 mm, more preferably not more than 5 mm diameter, that serves for a gravity caused by the return flow of water for the purpose of very rapid pressure reduction.
  • the opening is not configured as a round hole, that is to say as a bore, instead of the opening size in the form of a diameter specification, a (approximately) corresponding surface area of the opening cross section of another geometry corresponding to the round hole occurs.
  • a plurality of spaced non-return valves of this type according to the invention may be provided which limit the pressure caused by the liquid column standing in the pipe pressure in their respective section, since they each only a small opening in the direction of the Gravity generated (return) flow.
  • the pressure reducing device according to the invention described here is not only for use with the invention described here Method and its devices can be carried out, but also independently thereof is an independent invention for pressure reduction in pipes carrying liquids, in particular risers, as it alone or in the tube in series successively spaced a rapid pressure reduction even without a high outflow volume of the liquid, preferably of water, in the pipe.
  • the above-described inventive method for water pressure regulation or control in a pressure zone can be operated in all embodiments on a suitably equipped computer system, the computer preferably interfaces for controlling the actuators - here about speed setpoint for the pump drive - and / or to read the measured values or Stati of sensors - here measuring elements such as pressure sensor (s), water flow meter or exhaust valve sensor (s) - has.
  • the method according to the invention can also be present as a computer program, for example on a data carrier or an electronic carrier signal, for example for download.
  • a water pressure regulation or control system for water pressure regulation or control of a pressure zone can be constructed, namely such that a computer system has that as described above is arranged and also provides detectors for detecting a respective water extraction or a fault at a removal station, which are connected via the interface to the terminal for one or more detectors to the computer system.
  • a pump which supplies the extraction stations with water and having a pump drive whose speed can be specified via the interface for outputting the speed setpoint, wherein the computer system is connected via the interface for outputting the speed setpoint with the pump drive ,
  • the system according to the invention preferably also has a pressure sensor which measures the respective supply pressure (also called pump pressure), that is to say the operating pressure produced by the pump in the pressure zone.
  • the water pressure regulation or control system according to the invention is preferably used for water pressure regulation or control of the service and / or drinking water supply in a high-rise, ie preferably in a house, where the floor of at least one lounge
  • the skyscraper particularly preferably only a single pressure zone for the respective supply, so only a single riser for the service water supply and / or a single riser for the drinking water supply on.
  • the system according to the invention (as well as the inventive method) can also be used in (very large) buildings having multiple pressure zones, for example, if the building is too large for a single pressure zone, ie the distance between two floors, which must be supplied in parallel to each other, without the pressure at the removal point in the lower floor is too high, is too large.
  • the present invention allows namely a reduction in the number of pressure zones, since it allows them to be sized so large that two different floors can be just in parallel supplied to each other without the pressure on the lower floor at the sampling point high or the pressure on the higher floor becomes too low.
  • the use of the present invention as a water pressure regulation or control system for the extinguishing water supply, preferably in a high-rise building.
  • the fire-extinguishing network of the skyscraper can have only a single pressure zone. If it is still too large, the present invention can also be used in this case of use at least to reduce the number of pressure zones, as has already been explained above to the case of use for the service and / or drinking water supply.
  • Fig. 1 shows a perspective sketched longitudinal elevation of a 50-story high-rise building 1 with only one extinguishing water pressure zone, wherein an embodiment of the present invention is used
  • the high-rise building 1 has a basement with underground garage T and 50 floors OG , of which not all floors are shown individually.
  • the pump 4 has a speed-controlled pump drive, which can be controlled by a computer system 5 via an interface for outputting a speed setpoint 6.
  • the computer system (the computer) 5 has the older wei t of an interface for the connection of detectors 7 for detecting a water extraction in one of the extraction stations 2, 2a. This interface 7 is connected to the respective detectors at the sampling points 2, 2 a, respectively via a signal line 8, 8a, in order to use this as the trigger of the detector to the computer system.
  • signal lines 8 , 8a are preferably connected in a star-shaped manner to the computer 5 and-particularly preferably-monitored for cable breakage and / or short-circuit, for example, with a corresponding line monitoring module (such as a module with resistor network, eg a line monitoring of the company. Walluszek GmbH). 01591 Riesa) is possible. Particularly preferably laid the star-shaped running from the computer 5 to the detectors signal lines 8 , 8a as far as possible together in a wire harness or side by side on a common cable rack, so that a fire at a location there all signal lines attacked approximately simultaneously. If this happens, a short circuit and / or a break, ie an error, is detected for all these lines.
  • a short circuit and / or a break ie an error
  • the lines 8 that lead to the first and second floor 1st floor, 2nd floor - at least initially - undamaged.
  • the computer 5 operating according to the method of the present invention now adjusts the supply pressure to match the supply pressure set point corresponds to the lowest water pressure setpoint of the sampling stations for which an error was detected.
  • the lowest water pressure setpoint of a sampling station for which an error has been detected is in this case the 3rd floor water pressure set point .
  • the supply pressure is thus set to this value and is then available for the local extinguishing work.
  • a modern bus system can naturally also be used which has, for example, active signal detectors and / or active additional signaling elements which are regularly routed via the bus to a control center, eg the computer 5 report their readiness.
  • the detector reports on only one of the two signal lines, the other line is faulty, if it does not respond to any of the two - spatially separated lines - there is probably a fault on the detector itself or a fault event (such as a fire) in the immediate vicinity of the detector.
  • the computer system 5 is now by appropriate programming according to the method of the present invention in a position to control the extinguishing water system of the high-rise building 1 according to the invention or to regulate.
  • the corresponding values are stored and must be queried in the case of triggering on a certain floor OG only by the computer 5 - for example in the memory (work and / or mass storage) - for this floor, then the pump 4 by means of a speed value accordingly controls or, if a corresponding higher pressure already prevails a release valve 11 releases until the pressure is reached or (just now) below, whereupon the pump is then brought back to the required speed value.
  • the present invention employs not only the setting of the flow pressure at the respective unloading station 2, 2a adjusts to the highest permissible for this removal station 2 water pressure setpoint value after detection of a water discharge, which is about a function of the geodetic head 9 of the withdrawal station 2 50.OG on the speed control of the pump drive takes place in the 50.-th floor, the pump 4, the extraction station 2 via the riser 3 is supplied with water, but also in the case of detection of water removal at a further removal station 2a - here in the basement garage T - in addition, the F letcret on the for this sampling station 2a , where a (further) water extraction is detected, maximum value adapts, and this (at least) depending on the geodetic height of the respective sampling stations 2, 2a on the speed control the pump 4 and / or a drain valve 11 and / or a pressure reduction pump e (thus, via an adjustment of the supply pressure) takes place.
  • a check valve 10 is provided, preferably in the form of a non-return valve, which opens in upward flow direction of the water from the water pressure source to the water extraction point and in the reverse direction thereby almost only closes by having an opening which is designed such that the Water can thereby pass through in the opposite direction to the aforementioned flow direction due to gravity, so as to put the - located in the upward flow direction - behind the check valve region of the water supply pipe at closing of the check valve free of the pressure which goes beyond the pressure caused by gravity.
  • the supply pressure after it was first set up for the removal station in the 50th floor 50.OG can be lowered quickly by means of a simple drain valve to the level of the underground car park T without having to use expensive industrial valves with large cross sections.
  • the extinguishing water system can be operated approximately so that when entering the fire event in the parking garage T the speed setpoint for the pump drive is set so that the pump 4 then generates only a pressure at about 8 bar instead of 15 bar in the garage T pending. It is deliberately accepted that while the flow pressure for fire fighting in the 50th floor 50.OG drops, as at a time usually only one fire suppression location is assumed.
  • Fig. 2 shows a longitudinal section through a riser 3 with an embodiment of a pressure reducing device according to the invention.
  • the riser 3 water supply pipe
  • the riser 3 has a check valve 10 - here along a guide 12 in the axial direction of the water pipe 3 in a certain range movable cover 13 -, which opens in upward flow direction 14a of the water from the water pressure source to the water outlet point - by the lid 13 is pressed by the supply pressure of the water upwardly against post 12b, thereby sealing the back situated in this direction portion of the tube 3 is prevented - and in the reverse direction 14b - in which the cover completely the pipe part lying in this direction, covering - characterized only almost closes, because an opening 15 is provided which is designed so that the water thus can pass by gravity in the opposite direction 14b to the aforesaid flow direction 14a, so as to - as viewed in upward flow direction 14a - behind the non-return valve 10 lying area of Wa ssermakerssrohres 3 when closing the
  • Fig. 3 shows a longitudinal section through a riser 3 with a further embodiment of a pressure reducing device according to the present invention.
  • a a water supply pipe also a riser here to see 3
  • which has a check valve 10 pointing in the upward flow direction 14a of the water from the water pressure source towards the water tapping point opens - namely by means of a pivotally mounted about an axis 12c flap 13a, which is preferably pressed against a post 12b here, so that it opens less than 90 ° and their closing so always guaranteed by the water pressure remains - and in the reverse direction 14b -
  • the downwardly flowing water which pushes down the preferably not completely perpendicularly open flap 13a - and thereby almost only closes, because it has an opening 15 which is designed so that the water thereby in the opposite direction 14b to the aforementioned flow direction 14a due to gravity can occur, so as to set the - seen in the upward flow direction 14a - behind the check valve 10 lying portion of the water supply pipe

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  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Control Of Fluid Pressure (AREA)

Claims (10)

  1. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression, selon lequel l'adaptation de la pression d'alimentation au niveau de la station de prélèvement (2, 2a) correspondante après détection d'un prélèvement d'eau s'effectue en réglant la pression d'alimentation de consigne maximale admissible pour cette station de prélèvement (2, 2a), le réglage de la pression d'alimentation étant réalisé à chaque fois au moins en fonction de la hauteur géodésique (9) de la station de prélèvement (2, 2a) par le biais du contrôle de la vitesse de rotation ou de la régulation de la vitesse de rotation d'un mécanisme d'entraînement de pompe, dont la pompe (4) alimente la station de prélèvement (2, 2a) en eau,
    - dans le cas de la détection du prélèvement d'eau à au moins une station de prélèvement (2, 2a) supplémentaire, le réglage de la nouvelle pression d'alimentation s'effectuant à la pression d'alimentation de consigne maximale admissible pour cette station de prélèvement (2, 2a) supplémentaire à laquelle un prélèvement d'eau est détecté,
    caractérisé en ce que
    - dans le cas de la détection d'un défaut au niveau d'au moins une station de prélèvement (2, 2a) supplémentaire, si aucun prélèvement d'eau n'a été détecté préalablement, le réglage de la nouvelle pression d'alimentation s'effectue à la pression d'alimentation de consigne la plus basse pour toutes les stations de prélèvement (2, 2a) au niveau desquelles un défaut a été détecté.
  2. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon la revendication 1, caractérisé en ce que le réglage de la pression d'alimentation est également réalisé en fonction des pertes par résistances des tuyaux.
  3. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon la revendication 1 ou 2, caractérisé en ce que la détection du prélèvement d'eau à la station de prélèvement (2, 2a) est réalisée par l'intermédiaire d'un élément de mesure qui se déclenche lors d'un actionnement manuel d'un point de prélèvement (2, 2a).
  4. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon la revendication 1, 2 ou 3, caractérisé en ce que la détection du prélèvement d'eau à la station de prélèvement (2, 2a) est réalisée par l'intermédiaire d'un élément de mesure qui se déclenche lorsqu'un débit volumique donné d'eau est atteint et/ou dépassé.
  5. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 4, caractérisé en ce que la détection du défaut au niveau de la station de prélèvement (2, 2a) est réalisée en déterminant une rupture de câble.
  6. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 5, caractérisé en ce que la détection du défaut au niveau de la station de prélèvement (2, 2a) est réalisée en déterminant un court-circuit.
  7. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 6, caractérisé en ce que le contrôle de la vitesse de rotation ou la régulation de la vitesse de rotation est réalisé(e) par le biais d'un mécanisme d'entraînement à courant continu, de préférence sans balais, faisant office de mécanisme d'entraînement de pompe.
  8. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 7, caractérisé en ce que le contrôle de la vitesse de rotation ou la régulation de la vitesse de rotation est réalisé(e) par le biais d'un mécanisme d'entraînement à variation de fréquence faisant office de mécanisme d'entraînement de pompe.
  9. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 8, caractérisé en ce que le réglage de la pression d'alimentation, dans le cas où une chute de la pression doit ainsi avoir lieu, s'effectue au moins aussi en ce qu'un organe de commande ou un organe de réglage, de préférence une vanne d'écoulement d'eau, est ouvert(e) suffisamment longtemps, ou alors une pompe de relâchement de la pression destinée à relâcher la pression est mise en fonctionnement suffisamment longtemps jusqu'à atteindre ou passer au-dessous de la nouvelle pression d'alimentation.
  10. Procédé de régulation ou de contrôle de la pression de l'eau dans une zone de pression selon l'une des revendications 1 à 9, caractérisé en ce qu'après l'élimination de toutes les détections de prélèvement d'eau et l'élimination de toutes les détections de défaut au niveau des stations de prélèvement (2, 2a), un réglage de la pression d'alimentation est réalisé à la valeur de consigne qui correspond à la pression d'alimentation maximale admissible de toutes les stations de prélèvement dans la zone de pression.
EP11733553.9A 2010-04-30 2011-04-20 Méthode de réglage de la pression d'eau dans une zone sous pression Active EP2563980B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15002566.6A EP2975183B1 (fr) 2010-04-30 2011-04-20 Procédé et système de réglage de pression ou de commande de pression d'eau dans une zone de pression
DK15002566.6T DK2975183T3 (en) 2010-04-30 2011-04-20 METHOD AND SYSTEM FOR WATER PRESSURE CONTROL OR CONTROL IN A PRESSURE ZONE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010019110A DE102010019110A1 (de) 2010-04-30 2010-04-30 Verfahren und System zur Wasserdruckregelung oder -steuerung in einer Druckzone sowie Vorrichtung zur Durchführung und zum Betrieb derselben
PCT/DE2011/000429 WO2011134455A2 (fr) 2010-04-30 2011-04-20 Procédé et système de réglage ou de commande de la pression d'eau dans une zone sous pression, ainsi que dispositif permettant de mettre en œuvre et de faire fonctionner ce dernier

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EP15002566.6A Division EP2975183B1 (fr) 2010-04-30 2011-04-20 Procédé et système de réglage de pression ou de commande de pression d'eau dans une zone de pression

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EP2563980A2 EP2563980A2 (fr) 2013-03-06
EP2563980B1 true EP2563980B1 (fr) 2015-09-16

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EP15002566.6A Active EP2975183B1 (fr) 2010-04-30 2011-04-20 Procédé et système de réglage de pression ou de commande de pression d'eau dans une zone de pression
EP11733553.9A Active EP2563980B1 (fr) 2010-04-30 2011-04-20 Méthode de réglage de la pression d'eau dans une zone sous pression

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Country Link
EP (2) EP2975183B1 (fr)
CN (1) CN102859084B (fr)
DE (2) DE102010019110A1 (fr)
DK (2) DK2975183T3 (fr)
HK (1) HK1174373A1 (fr)
SG (1) SG185069A1 (fr)
WO (1) WO2011134455A2 (fr)

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CN103218936B (zh) * 2012-12-26 2015-04-01 吴心妮 一种开环与闭环控制系统演示器
DE102016014480A1 (de) 2016-12-06 2018-06-07 Heinz Kurzhals Messvorrichtung und Messverfahren für Löschwasserleitungen
CN110618708A (zh) * 2018-06-20 2019-12-27 佛山市顺德区美的电热电器制造有限公司 一种控制进水量的方法、装置和取水容器
DE102021106479A1 (de) 2021-03-17 2022-09-22 Schell Gmbh & Co. Kg Trinkwasserinstallationssystem und Armatur für ein Trinkwasserinstallationssystem

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WO2011134455A3 (fr) 2012-04-26
EP2975183B1 (fr) 2018-05-30
DK2563980T3 (en) 2015-12-14
EP2563980A2 (fr) 2013-03-06
CN102859084A (zh) 2013-01-02
HK1174373A1 (en) 2013-06-07
CN102859084B (zh) 2014-12-03
DE102010019110A1 (de) 2011-11-03
WO2011134455A2 (fr) 2011-11-03
SG185069A1 (en) 2012-12-28
EP2975183A1 (fr) 2016-01-20
DE202011110761U1 (de) 2016-03-07
DK2975183T3 (en) 2018-09-10

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