WO2024025431A1 - Systèmes automatiques d'économie d'eau et procédé d'économie d'eau utilisant lesdits systèmes - Google Patents

Systèmes automatiques d'économie d'eau et procédé d'économie d'eau utilisant lesdits systèmes Download PDF

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Publication number
WO2024025431A1
WO2024025431A1 PCT/PT2023/050023 PT2023050023W WO2024025431A1 WO 2024025431 A1 WO2024025431 A1 WO 2024025431A1 PT 2023050023 W PT2023050023 W PT 2023050023W WO 2024025431 A1 WO2024025431 A1 WO 2024025431A1
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WIPO (PCT)
Prior art keywords
water
module
thermal sensor
control unit
hot
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PCT/PT2023/050023
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English (en)
Portuguese (pt)
Inventor
João Carlos GONÇALVES GUERREIRO
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Aroundinspire, Lda
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Publication date
Application filed by Aroundinspire, Lda filed Critical Aroundinspire, Lda
Publication of WO2024025431A1 publication Critical patent/WO2024025431A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0078—Recirculation systems
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B1/00—Methods or layout of installations for water supply
    • E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water

Definitions

  • the present invention relates to automatic water saving systems which comprise at least two modules (a control module and a peripheral module) that perform a water saving method.
  • Document ES1074141U describes a modular water saving device to be installed between hot and cold water supply pipes and a tap, which comprises a single module.
  • the device allows water to be recirculated until it reaches a predetermined desired temperature, automatically and without the need for manual activation of any system.
  • the modular device described in document ES1074141U requires a 220V power socket next to the tap, thus reducing its versatility.
  • the automatic water saving systems of this invention are comparatively more compact and facilitate installation in places with limited space. Furthermore, since they are controlled by software , they allow the recording of the system's usage history, as well as the configuration of parameters by the user, in which this data can be communicated to other equipment through a computer application.
  • the function monitor it is possible to monitor the amount of water saved and the status of the peripheral module, namely, the battery charge (if any), the strength of the communication signal with the control module and which peripheral module is in use – if there is more than one.
  • a tap and a water saving system associated with it are described, in which said system comprises two solenoid valves which, together with a small pump, are responsible for changing the direction of advancement of water that has not yet been heated through the pipe. of cold water.
  • the valve used in ES1060933Y only leads to a flow reduction. Furthermore, the ES1060933Y system is activated by means of pressure sensors, while the automatic water saving systems of the present invention are activated by opening the hot water consumption tap and circulating water within at least one first meter / flow sensor.
  • DE3723089 refers to a hot water distribution arrangement, in which hot and cold water distribution valves are connected to hot and cold water storage tanks, respectively.
  • a bridge line with a circulation pump is provided, which connects the hot water branch and the cold water branch and allows heat exchange so that the water reaches the desired temperature.
  • Document FR2992986 discloses a water recycling module which uses a solenoid valve to prevent the circulation of water towards a cold water outlet when it does not present a desired temperature. Unlike the present invention, water recycling is carried out in a single and bulky module, which still requires a 220V socket for its operation. Therefore, the present invention appears as a simpler and more versatile alternative.
  • WO2013017938 proposes a device that can be applied to a tap to save water, with the operating principle of circulating water from the hot water branch to the cold water branch until the temperature in the hot water branch has reached a predetermined temperature.
  • DE19712051 describes a water circulation controller, in which a connection is established or interrupted depending on the temperature between a hot water branch and a cold water branch.
  • controller described in DE19712051 does not intend to solve water waste, but rather to control the water outlet temperature. Therefore, unlike the present invention, which refers to automatic water saving systems, the aforementioned concerns a mixer similar to thermostatic taps.
  • Previous document PT 11205 Y describes an automatic electromechanical system for saving water that includes a sending module and a receiving module and is intended to save water in hot water taps.
  • the sender module is inserted between the existing tap, the first pipe and the second pipe, and the receiver module is inserted between the water heating equipment and the second pipe.
  • the two modules are paired via radio, in a simple and unidirectional way, without using electrical cables between them.
  • the system comprises a thermal switch in the sending module, therefore, the temperature value is fixed. Furthermore, the flow switch is only present in the receiver module and the system operates through a hydro-generator present in the emitter module (it should be noted that there is only one direction of communication, from the emitter module, at the tap, to the receiver , in the water heater). In the present invention, usage data communication can be accessed remotely and also allows connection to home automation systems, integrating water efficiency as a complement to energy efficiency.
  • the water saving systems of the present invention comprise a thermal sensor that is programmable adjustable.
  • Flow sensors/counters on both the control and peripheral modules collect water consumption and water savings counts, as well as the usage time of the peripheral modules (when more than one peripheral module is present), allowing you to know the sum of all the savings activity or of each individual.
  • the control module function monitor allows not only the temperature adjustment function, but also consumption sampling, battery status (if present, as the system is also configured to be continuously powered), intensity and quality of communications between modules, secure pairing of modules and sampling of the number of active modules, among others.
  • the present invention relates, in a first aspect, to an automatic water saving system comprising a control module (A) and at least one peripheral module (B), wherein said modules communicate with each other and wherein
  • control module (A) comprises:
  • peripheral module (B) comprises:
  • control module (A) is connected to the mains water (11) and positioned upstream of the hot water producing equipment (1);
  • module (B) is positioned downstream of the safety taps (9) and upstream of the consumption tap (10);
  • opening the tap (10) for hot water consumption causes the passage of water from the network (11) through at least one first counter/flow sensor (2) and at least one first thermal sensor (6);
  • the at least one first thermal sensor (6) is configured to detect a minimum temperature of 2°C to activate the first control unit (3);
  • the second control unit (3') is configured to activate the automatic water saving system according to the temperature detected by at least one second thermal sensor (6');
  • the second control unit (3') is configured to act on the three-way valve (7) according to the temperature detected by at least one second thermal sensor (6');
  • the three-way valve (7) is configured to direct the flow of hot water to a consumption tap (10) or to the water inlet of the module (A); It is
  • the automatic water saving system comprises a control module (A) and at least one peripheral module (B), wherein said modules communicate with each other and wherein:
  • control module (A) comprises:
  • peripheral module (B) comprises:
  • control module (A) is connected to the mains water (11) and positioned upstream of the hot water producing equipment (1);
  • peripheral module (B) is in line with the pre-existing piping, intercepting it upstream of the consumption tap (10);
  • opening the tap (10) for hot water consumption causes the passage of water from the network (11) through at least one first counter/flow sensor (2) and at least one first thermal sensor (6);
  • the at least one first thermal sensor (6) is configured to detect a minimum temperature of 2°C to activate the first control unit (3);
  • the second control unit (3') is configured to activate the automatic water saving system according to the temperature detected by at least one second thermal sensor (6');
  • the second control unit (3') is configured to act on the three-way valve (7) according to the temperature detected by at least one second thermal sensor (6');
  • the three-way valve (7) is configured to direct the flow of hot water to a consumption tap (10) or to the water inlet of the module (A); It is
  • the invention describes a method of saving water using the automatic water saving systems described in the first and second aspects, which comprises the following steps:
  • the systems allow the recording of their usage history, as well as the configuration of parameters by the user, in which this data can be communicated to other equipment, such as tablets and cell phones, through of a computer application.
  • the amount of water saved and the status of at least one peripheral module can also be monitored using a function monitor, which allows modifications to operating parameters to be made to seek more optimized results.
  • the pressure boost function can be activated, thus increasing the efficiency of the equipment in situations where low network pressure compromises the normal use of hot water, particularly in hot water producing equipment.
  • the activated pressure boost function ensures that the water pump is turned on whenever there is consumption at any hot water point, with or without the peripheral module acting, thus adding pressure for comfortable and efficient water use.
  • the present invention reduces water waste in hot water taps through automatic water saving systems that perform a water saving method.
  • the proposed automatic water saving systems are based on their own, compact interior architecture that uses few components and software, developed to manage all adjustment functions, so that each user or company can adapt the aforementioned systems to their needs. your real needs and know concretely the history of use and how much water was saved.
  • the data can also be exported to the internet and viewed on equipment such as smartphones, tablets and computers, etc. Furthermore, when installed in buildings or other commercial establishments, such as sports complexes and hotels, data from several units can be monitored in real time, as well as the economic impact of water savings throughout the chain.
  • the first control unit is activated automatically by opening the hot water tap.
  • At least one second thermal sensor (6') allows the water temperature to be compared with a minimum temperature value pre-defined by the user.
  • the water direction is switched towards returning to the cold branch, thus increasing water efficiency by reducing waste in hot water taps during the heating process.
  • the automatic water saving systems of the present invention are configured to be adapted in any location where water is wasted in the heating process and the installation can be made on the external side of the wall or the system can be embedded in the wall, ceiling or floor.
  • FIG. 1 schematically represents the preferred embodiment of the automatic water saving system of the present invention comprising two modules that communicate with each other, in which the control module is connected to the mains water (11) and positioned upstream of the water-producing equipment. hot water and the peripheral module is positioned upstream of the consumption tap.
  • FIG. 2 schematically represents the control module of the automatic water saving system of the present invention.
  • FIG. 3 schematically represents the peripheral module of the automatic water saving system of the present invention.
  • FIG. 4 schematically represents the first alternative embodiment of the automatic water saving system of the present invention, in which the control module is connected to the mains water (11) and positioned upstream of the hot water producing equipment and the peripheral module it is in line with the pre-existing plumbing, intercepting it upstream of the consumption tap.
  • FIG. 5 schematically represents the control module, in the first alternative embodiment of the automatic water saving system of the present invention.
  • FIG. 6 schematically represents the peripheral module, in the first alternative embodiment of the automatic water saving system of the present invention.
  • FIG. 7 schematically represents the second alternative embodiment of the automatic water saving system of the present invention, in which the control module is connected to the mains water (11) and positioned upstream of the hot water producing equipment and the peripheral module It is positioned to replace the consumer tap.
  • FIG. 8 schematically represents the peripheral module, in the second alternative embodiment of the automatic water saving system of the present invention.
  • FIG. 9 schematically represents the third alternative embodiment of the automatic water saving system of the present invention, in which the control module is connected to the mains water (11) and positioned downstream of the water producing equipment and the peripheral module is positioned to replace the consumer tap.
  • FIG. 10 schematically represents the control module, in the third alternative embodiment of the automatic water saving system of the present invention.
  • FIG. 11 schematically represents the fourth alternative embodiment of the automatic water saving system of the present invention, in which the control module is connected to the mains water (11) and positioned upstream of the hot water producing equipment and the peripheral module It is positioned at the intersection of the hot and cold branches.
  • FIG. 12 schematically represents the peripheral module, in the fourth alternative embodiment of the automatic water saving system of the present invention.
  • the present invention describes automatic water saving systems, which comprise a control module (A) and at least one peripheral module (B), in which said modules communicate with each other and function interdependently with the aim of maintaining water in the pipeline. the cold water that is wasted in the heating process until it reaches a temperature pre-defined by the user.
  • control module (A) and the peripheral module (B) can be provided as a single module or as separate modules.
  • modules (A) and (B) are represented as separate modules.
  • control module (A) comprises:
  • peripheral module (B) comprises:
  • control module (A) is connected to mains water (11) and positioned upstream of the hot water producing equipment (1) and
  • peripheral module (B) is positioned downstream of the safety taps (9) and upstream of the consumption tap (10).
  • Opening the tap (10) for hot water consumption causes the passage of water from the network (11) through at least one first counter/flow sensor (2) and at least one first thermal sensor (6), in which the at least a first thermal sensor (6) is configured to detect a minimum temperature of 2oC. If a temperature greater than 2oC is detected by at least one first thermal sensor (6), system activation is initiated by the control unit (3).
  • control module (A) is connected to the mains water (11) by means of a cold water tap (9) and is positioned upstream of the equipment hot water producer (1), which can be any equipment designed to heat water.
  • the cold branch coming from the network passes through the control module (A) through the circulation pump (5), the at least one first meter / flow sensor (2) and the at least one first thermal sensor (6) and goes to the hot water producing equipment (1).
  • the peripheral module (B) is positioned downstream of the safety taps (9) and upstream of the consumption tap (10) - which can be a mixing tap or individual.
  • the hot branch originating from the hot water producing equipment (1) passes through the peripheral module (B) through at least one second counter/flow sensor (2') and at least one second thermal sensor (6') , going to the 3-way valve (7) in the direction of the hot branch consumption tap (10) (direction a-b) or in the direction of the non-return valve (8) (direction a-c).
  • the first and second flow counters/sensors (2, 2') further internally comprise an integrated thermal sensor (not shown in the figures).
  • an integrated thermal sensor not shown in the figures.
  • the three-way valve (7) is configured to direct the flow of hot water to the consumption tap (10) (if the temperature is higher than the minimum temperature pre-established by the user) or to the water inlet of the module (A) (if the temperature is lower than the minimum temperature pre-established by the user).
  • module (A) When directed to the water inlet of module (A), the water is transferred from the hot branch to the cold branch in a closed circuit between modules (A) and (B).
  • control module (A) of the automatic water saving system comprises:
  • peripheral module (B) comprises:
  • control module (A) is connected to mains water (11) and positioned upstream or downstream of the hot water producing equipment (1) and
  • peripheral module (B) is in line with the pre-existing piping, intercepting it upstream of the consumption tap (10).
  • Opening the tap (10) for hot water consumption causes the passage of water from the network (11) through at least one first counter/flow sensor (2) and at least one first thermal sensor (6), in which the at least a first thermal sensor (6) is configured to detect a minimum temperature of 2oC. If a temperature greater than 2oC is detected by at least one first thermal sensor (6), system activation is initiated by the control unit (3).
  • control module (A) is connected to mains water (11) by means of a cold water tap (9) and is positioned upstream of the production equipment.
  • hot water system (1) which can be any equipment designed to heat water.
  • the cold branch from the network passes through the control module (A) through at least one first counter/flow sensor (2) and at least one first thermal sensor (6) and goes to the water producing equipment hot (1).
  • peripheral module (B) is in line with the pre-existing plumbing and upstream of the consumption tap (10) - which can be a mixer or individual tap.
  • the hot branch coming from the hot water producing equipment (1) passes through the peripheral module (B) through the circulation pump (5) and at least one second counter/flow sensor (2') and at least a second thermal sensor (6'), going towards the 3-way valve (7) in the direction of the hot branch consumption tap (10) (direction a-b) or in the direction of the non-return valve (8) (direction a-c).
  • the first and second flow counters/sensors (2, 2') further internally comprise an integrated thermal sensor (not shown in the figures).
  • the three-way valve (7) is configured to direct the flow of hot water to the consumption tap (10) (if the temperature is higher than the minimum temperature pre-established by the user) or to the water inlet of the module (A) (if the temperature is lower than the minimum temperature pre-established by the user).
  • module (A) When directed to the water inlet of module (A), the water is transferred from the hot branch to the cold branch in a closed circuit between modules (A) and (B).
  • the circulation pump (5) can be at any point in the closed circuit, be it in the cold branch (if in module A, when it is upstream of the hot water producing equipment) or in the hot water (if in module A, when it is downstream of the hot water producing equipment, or if in module B).
  • the circulation pump (5) is in the control module (A) and upstream of the hot water producing equipment (1), in order to be more accessible, visible and also to save said component of the contact with higher temperatures.
  • circulation pump (5) can be upstream or downstream of said hot water producing equipment (1), as well as in any intersection thereof.
  • said component has a safety function.
  • ice may form and, consequently, damage inside the systems proposed here.
  • this first sensor checks the temperature of the mains water (11) before activating the systems and the water saving method is only started when a temperature higher than 2oC is detected.
  • At least one first thermal sensor (6) checks the temperature and, when the minimum temperature of 2oC is reached, the systems can be started.
  • the peripheral module (B) can also be positioned, replacing the consumption tap (10) (see Figures 7, 8 and 9) and at the intersection of the hot and cold branches (see Figures 11 and 12).
  • a third thermal sensor (6”) is necessary to measure the leaving water temperature.
  • the installation is not built-in, that is, the water saving systems are installed on the external side of the wall using glue, with a plug and screw, with clamps or any other means support system developed for this purpose.
  • the installation When positioned at the intersection of hot and cold branches, the installation can be built into the wall, ceiling or floor or not.
  • the invention describes a method of saving water using the described automatic water saving systems, which comprise the following steps:
  • the working temperature parameters (minimum and maximum) and date and time adjustment are configured (steps a and b).
  • the water saving method using the system of the invention is triggered by opening the hot water consumption tap (10) at the outlet (b) of the 3-way valve (7) (step c).
  • the water temperature is compared with the minimum value pre-defined by the user by means of at least a second thermal sensor (6') (step f) and goes to the 3-way valve (7) , which is configured to direct the flow of hot water towards the hot branch consumption tap (10) (direction a-b) or towards the non-return valve (8) (direction a-c) (step g).
  • the water is transferred from the hot branch to the cold branch in a closed circuit between modules (A) and (B) (step h).
  • the second control unit (3') activates the 3-way valve (7) which, in turn, switches the direction of the water towards the non-return valve (8), that is, from direction a-b (tap ( 10) consumption) to a-c (non-return valve (8)).
  • the non-return valve (8) yields to the pressure difference and the water coming from the hot branch is transferred to the cold branch, creating a closed circuit between the modules (A, B) (step i).
  • the first function monitor (4) indicates the liters of water saved and the status of the module (B), namely, the battery charge (if any), the intensity of the communication between modules (A, B) and how many peripheral modules (B) are paired – if there is more than one.
  • the second function monitor (4’) indicates the water temperature in real time.
  • the second control unit (3') can emit an audible signal that informs that the saving process is taking place.
  • the control module function monitor allows temperature adjustment functions, consumption sampling, battery status (if present), intensity and quality of communications between modules, secure pairing of modules and sampling of the number of active modules, among others. .
  • step n After stopping the flow of water from the hot branch (step m), the flow counters/sensors (2, 2') of the modules (A, B) come to rest, the same happens with the control units (3, 3') (step n), which, now in energy saving mode, wait for a new request as described above.
  • the water saving method of this invention is triggered by the detection, by the flow meters/sensors (2, 2'), of the movement of water within the pipes, as a consequence of opening the consumption tap (10).
  • the control units (3, 3') comprise dedicated on-board software configured to feed data, such as user-determined working temperatures, and control the internal components of the systems. Furthermore, said software provides the usage history with date and time, consumption and savings of the installed peripheral modules (B) and is configured to communicate this data through a computer application for equipment such as mobile phones, tablets and computers. Communication of usage data also allows connection to home automation systems, integrating water efficiency as a complement to energy efficiency.
  • the pressure boost function can be activated, thus increasing the efficiency of equipment in situations where low network pressure compromises the normal use of hot water, particularly in hot water producing equipment.
  • the activated pressure boost function ensures that the water pump is turned on whenever there is consumption at any hot water point, with or without the actuation of the peripheral module, thus adding pressure for comfortable and efficient water use.
  • Installation can be done on the external side of the wall, which allows the installer to place the modules without the need for works and quickly into the pre-existing plumbing. Versions built into the wall, ceiling or floor are also planned (as shown in Figure 4), requiring the necessary adaptations to the plumbing during the design or construction phase.
  • the system is powered by the electrical network of the location where it will be installed or by means of batteries.
  • the automatic water saving systems of the invention can be installed anywhere where water is wasted in the heating process.
  • the system can be installed in apartments for housing or local accommodation in buildings of different types, villas, beauty salons, company changing rooms, sports buildings, SPAs and hotels, without being limited to them.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Plumbing Installations (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)

Abstract

La présente invention concerne des systèmes automatiques d'économie d'eau, lesquels comprennent au moins deux modules qui communiquent entre eux , soit un module de commande (A) et un module périphérique (B), et lesquels exécutent un procédé d'économie d'eau. Les systèmes de la présente invention sont actionnés par l'ouverture du robinet (10) de consommation d'eau chaude, et permettent que l'eau qui présente une température inférieure à celle prédéfinie par l'utilisateur soit renvoyée du module (B) vers l'entrée de la branche froide du module (A) dans un circuit fermé, grâce à un changement de sens assuré par une vanne à 3 voies (7). Les systèmes d'économie d'eau ont pour objectif d'augmenter le rendement hydrique par réduction du gaspillage au niveau des robinets (10) d'eau chaude pendant le processus de chauffage.
PCT/PT2023/050023 2022-07-25 2023-07-24 Systèmes automatiques d'économie d'eau et procédé d'économie d'eau utilisant lesdits systèmes WO2024025431A1 (fr)

Applications Claiming Priority (2)

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PT118125 2022-07-25
PT118125A PT118125A (pt) 2022-07-25 2022-07-25 Sistemas automáticos de poupança de água e método de poupança de água utilizando os referidos

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WO2024025431A1 true WO2024025431A1 (fr) 2024-02-01

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101315207A (zh) * 2008-06-17 2008-12-03 广东万家乐燃气具有限公司 一种燃气热水器自动控制预热中央供水系统
PT11205Y (pt) * 2015-07-11 2018-01-04 Aroundinspire Unipessoal Lda Automatismo para poupança de água
WO2018212728A2 (fr) * 2016-10-20 2018-11-22 Kostak Iskender Système de valve de robinet d'eau chaude/froide

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101315207A (zh) * 2008-06-17 2008-12-03 广东万家乐燃气具有限公司 一种燃气热水器自动控制预热中央供水系统
PT11205Y (pt) * 2015-07-11 2018-01-04 Aroundinspire Unipessoal Lda Automatismo para poupança de água
WO2018212728A2 (fr) * 2016-10-20 2018-11-22 Kostak Iskender Système de valve de robinet d'eau chaude/froide

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