CN112867696A - Water treatment system and method for predicting life of pre-filter thereof - Google Patents
Water treatment system and method for predicting life of pre-filter thereof Download PDFInfo
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- CN112867696A CN112867696A CN201980068950.9A CN201980068950A CN112867696A CN 112867696 A CN112867696 A CN 112867696A CN 201980068950 A CN201980068950 A CN 201980068950A CN 112867696 A CN112867696 A CN 112867696A
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- life
- control module
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 238000011045 prefiltration Methods 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims description 19
- 238000013213 extrapolation Methods 0.000 claims abstract description 13
- 238000004891 communication Methods 0.000 claims description 35
- 238000009434 installation Methods 0.000 claims description 9
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 description 11
- 238000000746 purification Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/008—Processes using a programmable logic controller [PLC] comprising telecommunication features, e.g. modems or antennas
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/44—Time
- C02F2209/445—Filter life
Abstract
The present invention provides a system for predicting pre-filter life, the system comprising: a water treatment device and a control module, wherein the control module is configured to record a flow rate value (FR) sensed by a flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system; drawing FRnValue relative to VnA graph of values; storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminIndicates the end of pre-filter life; and extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value being indicative of the pre-filter lifeEstimated volume of life (V)E)。
Description
Technical Field
The invention relates to a water treatment system and a method for predicting remaining filter life thereof. More particularly, the present invention relates to how the life of a filter in a water treatment system can be predicted and communicated to a user.
Background
The water treatment system consists of one or more different types of filters, the pre-filter being a filter, such as a reverse osmosis filtration membrane or a micro-or ultrafiltration membrane, usually upstream of the main filter.
These filters often have a limited life and need to be replaced after their end of life. Their life depends on a number of factors such as the quality of the input water, the usage of the filter over a period of time, the volume of water dispensed by the water treatment device.
Typically, the filter life of a pre-filter is predicted based on assumptions of water dispensed by a water treatment device or the number of hours the device is operating, however, these are not the basis for accurate assumptions, as they do not take into account other factors such as the quality of the input water that may change over a period of time, the performance and life of other filters that may affect the output of treated water.
Filter life may be predicted based on the average water volume at which the prefilter is known to need replacement. That is, the "X" volume of water dispensed by the water treatment device/average volume of water known to require replacement of the pre-filter at that location. However, this is not the most accurate way to predict the life of the pre-filter, nor does it dynamically take into account real-time changes in water quality. Also, the input quality of the water may change over a period of time, which is not considered in these systems.
JP4228410(TOTO LTD.) discloses a water treatment apparatus for generating hypochlorous acid by electrolyzing an aqueous solution supplied from a water supply source after mixing the saline aqueous solution with the water supply source, and then passing it through a filter. This document also mentions providing a late filter change prompt. However, this document does not specifically state about predicting and reporting the end of life of the prefilter. Furthermore, this document does not predict the life of a pre-filter in an alkaline water treatment system, since the flow sensor is located upstream and has a mixing tank in its downstream path, and therefore cannot detect the flow rate of water entering the filter, does not provide any information about the filter, and therefore cannot predict the filter life independently.
Therefore, there is a need for predicting pre-filter life in an alkaline water treatment system by more accurate means and which is more dynamic to account for real-time changes in water quality and changes in the input quality of water over a period of time without adding any additional components for filter life prediction.
Disclosure of Invention
A first aspect of the invention provides a system for predicting pre-filter life, the system comprising:
A. a water treatment device, comprising:
i. an inlet;
a pre-filter downstream of the inlet;
a water treatment unit further downstream of the pre-filter;
a flow sensor located downstream of the water treatment unit;
v. an outlet for dispensing treated water; and
B. a control module capable of:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern)；
Storing a pre-filter replacement event;
wherein the control module is configured to:
a) recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminThe value of (d) indicates the end of the pre-filter life.
d) Extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
A second aspect of the invention provides a method of predicting pre-filter life, the method comprising the steps of;
i. providing a system according to the first aspect;
record VnA value;
recording flow rate values (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the prefilter;
drawing FRnValue relative to VnA graph of values;
v. storing the predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnIs less than FRminIndicates the end of pre-filter life; and
extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
It is to be understood that the invention is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways.
The terms "comprising," "including," "containing," or "having," and variations thereof, as used herein, are intended to cover the items listed thereafter as well as additional items. Unless specified or limited otherwise, the terms "mounted," "connected," "supported," and "coupled" and variations thereof are used broadly and encompass both direct and indirect mountings, connections, supports, and couplings.
The following description is intended to illustrate the invention and is not intended to limit the invention to those embodiments per se. Similarly, all percentages are weight/weight percentages unless otherwise indicated.
Except in the operating and comparative examples, or where otherwise explicitly indicated, all numbers in this description indicating amounts of material or conditions of reaction, physical properties of materials and/or use are to be understood as modified by the word "about".
Numerical ranges expressed in "x to y" format should be understood to include x and y. When multiple preferred ranges are described in the format "x to y" with respect to a particular feature, it is to be understood that all ranges combining the different endpoints are also contemplated.
Throughout the specification, the phrase "direct function of membrane filter performance" means that as the value as a direct function increases, it indicates good performance of the membrane, and when the value decreases, it indicates poor membrane filter performance.
Throughout the specification, the phrase "inverse function of membrane filter performance" means that when the value as an inverse function is increased, it indicates poor performance of the membrane, and when the value is decreased, it indicates good membrane filter performance.
Detailed Description
The invention relates to a system for predicting pre-filter life, the system comprising a water treatment device and a control module, wherein the control module is configured to: recording flow velocity values (FR) sensed by a flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system; drawing FRnValue relative to VnA graph of values; storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnValue less than FRminIndicates the end of pre-filter life; and extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
Throughout the specification, it should be understood that for the purposes of the present invention, the term "communication" shall be meant to include direct or indirect communication, wired or wireless communication, electrical or non-electrical communication, by wave, radiation, and all types of communication used as known in the art.
In contrast to prior approaches in which pre-filter life was based on consolidated average data of pre-filter performance from laboratory results, the system and method help predict pre-filter life in the most accurate manner. Where filter life may be predicted based on the average water volume at which it is known that the pre-filter needs to be replaced. I.e. the "X" volume of water dispensed by the water treatment device/average volume of water known to require replacement of the pre-filter at that location. However, this is not the most accurate way to predict the life of the pre-filter, nor is it dynamic to account for real-time changes in water quality. Also, the input quality of water may change over time, which is not considered in these systems.
The present invention finds a solution to predict the life of a pre-filter in an alkaline water treatment system and report the end of life. The inventors of the present invention started to find a way to predict the life of the pre-filter only during normal operation of the alkaline water purification device without having to add any additional components and without adding any additional cost to the alkaline water treatment device.
Furthermore, the present inventors have recognized that the pre-filter is different from the other filters (if present) of the water treatment system. This is because it is first faced with a supply of raw water, which may come from a different source, many times with larger sized particles removed by the pre-filter, so there is a high probability that the pre-filter will clog suddenly or over a period of time. The inventors therefore began to look for specific solutions to this particular problem.
The present invention provides a system for predicting pre-filter life, the system comprising:
A. a water treatment device, comprising:
i. an inlet;
a pre-filter downstream of the inlet;
a water treatment unit further downstream of the pre-filter;
a flow sensor located downstream of the water treatment unit;
v. an outlet for dispensing treated water; and
B. a control module capable of:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern)；
Storing a pre-filter replacement event;
wherein the control module is configured to:
a) recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminIndicates the end of pre-filter life; and
d) extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
Preferably, the water treatment device is a water purification device with one or more filters, and the pre-filter is preferably located upstream of the water treatment unit, preferably a first filter in contact with the input water or raw water.
Preferably, in the system of the invention, the control module is part of the water treatment apparatus or part of a remotely located server, preferably when the control module is part of the remotely located server, the control module comprises a communication module.
Preferably, in the system of the present invention, the system further comprises a display device, and the display device is preferably part of the water treatment device or the control module, or is a stand-alone portable device.
Preferably, in the system of the present invention, a communication module is also included when other components of the system, the control module and/or the display device are not electrically connected to the water treatment device.
Preferably, in the system of the present invention, the water treatment device further comprises a pressure sensing unit upstream of the water treatment unit, and preferably, the communication module is further capable of storing data from the pressure sensing unit and when the pressure sensing unit detects less than a predetermined pressure value PminEvent "E" at pressure.
Preferably, in the system of the invention, when the pressure sensing unit is located downstream of the pre-filter, the control module is further configured to report the end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
Water treatment device
The water treatment apparatus of the present invention comprises:
i. an inlet;
a pre-filter downstream of the inlet;
a water treatment unit further downstream of the pre-filter;
a flow sensor located downstream of the water treatment unit;
v. an outlet for dispensing treated water; and
preferably, the water treatment apparatus of the present invention is a water purification apparatus in which an inlet for raw/untreated water is provided, and a pre-filter is provided downstream of and in fluid communication with the inlet.
Pre-filtering:
preferably, the pre-filter is the first filter or stage of water purification, more preferably the pre-filter is intended to remove particulate matter from the water. More preferably, the pre-filter is a sediment filter.
If the pre-filter is not the first stage of water purification it precedes at least the main filtration stage in the water purification process.
A water treatment unit:
the water treatment unit is a main filtration unit in fluid communication with the pre-filter and may be an RO membrane, a microfiltration membrane, an ultrafiltration membrane or any other filtration unit.
A flow sensor:
the flow sensor measures water flow. Preferably, the flow sensor is placed in the flow path of the treated water from the water treatment unit, which allows for measurement of the water dispensed from the system. The FS preferably provides input pulses to the control module, more preferably when the control module is part of the water treatment device or control circuitry within the water treatment device. The control module or control circuit can measure the flow rate based on input from the flow sensor and calculate the amount of water passing through it.
The control circuit:
the water treatment apparatus of the present invention preferably includes a control circuit, which may be part of the control module when the control module is part of the water treatment apparatus, or may be a separate control unit of the water treatment apparatus.
When the control circuit is a stand-alone control unit of the water treatment device, it preferably comprises a microcomputer unit (MCU) and a communication module adapted to communicate with the control module and to transmit information regarding flow sensor data and the like. Preferably, a microcomputer unit (MCU) of the control circuit unit takes charge of logic control of the device. The MCU forms a seat of control circuit intelligence (seat of control circuit interaction).
The control circuit of the water treatment device can:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern) (ii) a And
storing a pre-filter replacement event;
and may be configured to:
a) recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminThe value of (d) indicates the end of the pre-filter life.
d) Extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
The control circuit is also capable of storing data from the pressure sensing unit (when present); and when the pressure sensing unit detects that the pressure is less than the preset pressure value PminEvent "E" at pressure.
Preferably, when the pressure sensing unit is located downstream of the pre-filter, the control circuit can be further configured to report the end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
The control circuit may be further configured to send an alert to replace the pre-filter. The sending of the alert may be via a display device or any other medium.
The control circuit can preferably be configured to send an alarm before the end of the life of the pre-filter, for example at VEOr any value that gives sufficient time to replace the pre-filter before the end of its life may be selected.
Communication module
Preferably, the water treatment device of the present invention comprises a communication module which is part of the control module or control circuit when present in the water treatment device, or is a separate unit.
The communication module of the invention is preferably part of the control circuit or can however function as a separate unit connected to the control circuit or control module when present in the device. When the control module is not part of the device, the communication module is responsible for data communication between the device and the control module. The communication module may also be configured to communicate with any other external device, for example a portable apparatus such as a telephone, a notebook computer, a display device, etc.
The communication module is preferably electrically or electronically connected to the control circuitry of the device.
When the control module is external to the device, the communication module preferably establishes a wireless connection with the control module. The communication module is also capable of establishing a connection with an electronic or electrical communication device when configured in a suitable manner. It is highly preferred that the communication module is preferably configured to establish a wireless connection with a communication device, such as a telephone or a computer.
The communication module most preferably comprises at least one integrated circuit for establishing a connection between the device and the control module or any other external device, as the case may be. It is highly preferred to use a wireless network based on GSM/CDMA/WCDMA/LTE or the like technology to communicate data through the communication module.
Pressure sensing unit (LPS) preferably, the device comprises a pressure sensing unit, preferably a Low Pressure Sensor (LPS), for sensing the input water pressure and communicating this status to the control circuit or module. It also functions as a switch. The LPS is preferably related to the input pressure of the water. The LPS is configured to detect when the pressure sensing unit detects less than a predetermined pressure value PminIs closed and an error "E" is reported. When there is no water on the input side or the pressure is low, the LPS switch will open and "E" will be reported. If water with the desired pressure is present at the input, the LPS switch will open. The control module is further configured to report an end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
Control module
The control module of the present invention can;
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern) (ii) a And
storing a pre-filter replacement event;
and is configured to:
a) recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminThe value of (d) indicates the end of the pre-filter life.
d) Extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
The control module is part of the water treatment apparatus or may be part of a remotely located server and when the control module is part of the remotely located server, the control module preferably includes a communication module.
Preferably, the communication module is further capable of storing data from the pressure sensing unit (when present); and when the pressure sensing unit detects that the pressure is less than the preset pressure value PminEvent "E" at pressure.
Preferably, when the pressure sensing unit is located downstream of the pre-filter, the control module is further configured to report the end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
The control module may be further configured to send an alert to replace the pre-filter. The sending of the alert may be via a display device or any other medium.
The control circuit may preferably be configured to send an alarm before the end of the life of the pre-filter, for example at VEOr any value that gives sufficient time to replace the pre-filter before the end of its life may be selected.
Server
Preferably, the water treatment device of the present invention is in communication with a server, preferably a remotely located server, and preferably over a wireless medium such as the internet.
The server may also include a control module of the present invention.
A server according to the present invention may be a computer program or device that provides functions for other programs or devices.
It is also preferred that the server communicates with other external devices, such as portable devices like telephones, laptops, display devices etc.,
the server of the invention may be accessed via a network such as a WAN or LAN or GPRS or the like.
In the context of a server, the term "remotely located" for the purposes of the present invention refers to connecting by wireless means.
The server of the water treatment apparatus is capable of: storing data generated by the flow sensor;
v. storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern) (ii) a And
storing a replacement event of the prefilter;
and may be configured to:
e) recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
f) drawing FRnValue relative to VnA graph of values;
g) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminIndicates the end of pre-filter life;
h) extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
The server is also able to store data from the pressure sensing unit (when present); and when the pressure sensing unit detects that the pressure is less than the preset pressure value PminPressure ofEvent "E" of (1).
Preferably, when the pressure sensing unit is located downstream of the pre-filter, the server can also be configured to report the end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
The server may be further configured to send an alert to replace the prefilter. The sending of the alert may be via a display device or any other medium.
The server can preferably be configured to send an alert before the end of the life of the prefilter, for example at VEOr any value that gives sufficient time to replace the pre-filter before the end of its life may be selected.
Display device
The predicted life of the pre-filter according to the system and method of the present invention may be displayed on a display device that is part of the water treatment device or control module or server, or a stand-alone portable device.
The display device is preferably a user interface of the water treatment device.
Most preferably, the display device has a screen, preferably an LED screen, to display the pre-filter lifetime.
The display means can display other information about the water purifier, such as connectivity, quality of water dispensed, status of other filters and such like information, data useful to the user or user.
There may be more than one display device, such as one on the water treatment device, another on the server and one on a separate device, any one or a combination thereof.
The display of the prediction of the pre-filter life may be graphical, numerical, statistical, such as a display of colors, timelines, maps, ladders, scales, graphics, percentages, decimals, scores, pyramids, pie-shaped, circles, charts, bar graphs, etc. for displaying the filter life.
The display device of the present invention may also be used to display an alert to replace the prefilter.
As the name suggests, a portable device is a device that is portable and has a communication module capable of communicating with an instrument via the instrument's communication module.
The portable device preferably includes hardware and software.
The portable device includes a communication module that is capable of communicating with the communication module of the instrument (when present) and with the control module and/or the server.
The portable device may be a laptop, tablet, telephone, computer or handheld device. It is highly preferred that the portable device comprises a mobile telephone.
It is highly preferred that the portable device communicates with the water treatment device and/or the communication module and/or the server by conventional means, such as electrically, electronically or by wire or by wireless means. It is highly preferred that the portable device communicates with the water treatment device by wireless means.
It is also possible that the portable device communicates with the instrument or server through an intermediary device, cloud, system, software, etc.
When the portable device is a telephone, the display or user interface of information for the water treatment system is preferably through the APP.
Method
The present invention provides a method of predicting pre-filter life, the method comprising the steps of;
i. providing a system according to the first aspect;
record VnA value;
recording flow rate values (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the performance of the prefilter;
drawing FRnValue relative to VnA graph of values;
v. storing the predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnIs less than FRminIndicates the end of pre-filter life; and
extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
Preferably, the method further comprises reporting the end of life of the prefilter by a display device.
For more reliable mapping, it is most preferred to start mapping with at least 3 data points.
At a fixed interval VnCollection of FRnPreferably 1 to 50 litres, for example after dispensing a volume of water per V litres from the water treatment device.
Preferably, according to the method of the invention, when the pressure sensing unit is located downstream of the pre-filter, the method further comprises reporting the end of life of the pre-filter when "E" is reported at least "t" times for a predetermined volume value dispensed by the water treatment unit, and preferably reporting the end of life of the pre-filter at event "E" overrides V during the life of the pre-filternAt any stage of VEThe value is obtained.
The method notes the event when the pre-filter can become so heavily clogged that little or no pressure is sensed in any water that has passed through the pre-filter, indicating the end of the pre-filter life.
The value of the number "t" is selected at a higher value than the value at which a normal or average expected low pressure error would be expected within the volume value. For example, if on average, one event "E" is expected to occur in 20 liters dispensed by the water treatment unit, then if "E" occurs 10 times in 1 liter, this is an indication of the end of the life of the pre-filter, so this value overrides V during the life of the pre-filternV of any stage ofEThe value is obtained.
The method may also include sending an alert to replace the pre-filter. The sending of the alert may be via a display device or any other medium.
The alarm may be triggered before the end of the life of the prefilter, e.g. at VEOr any value that gives sufficient time to replace the pre-filter before the end of its life may be selected.
Use of
The present invention provides a system, comprising:
A. a water treatment device, comprising:
i. an inlet;
a pre-filter downstream of the inlet;
a water treatment unit further downstream of the pre-filter;
a flow sensor located downstream of the water treatment unit;
v. an outlet for dispensing treated water; and
B. a control module capable of:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern)；
Storing a pre-filter replacement event;
wherein the control module is configured to:
a) recording flow velocity values (FR) sensed by a flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminThe value of (d) indicates the end of the pre-filter life.
d) Extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)，
For predicting the pre-filter life of the water treatment device.
The present invention provides a system, comprising:
A. a water treatment device, comprising:
i. an inlet;
a pre-filter downstream of the inlet;
a water treatment unit further downstream of the pre-filter;
a flow sensor located downstream of the water treatment unit;
v. an outlet for dispensing treated water; and
B. a control module capable of:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern)；
Storing a pre-filter replacement event;
wherein the control module is configured to:
a) recording flow velocity values (FR) sensed by a flow sensorn) Wherein FR isnIs a direct function of the performance of the water treatment system;
b) drawing FRnValue relative to VnA graph of values;
c) storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminThe value of (d) indicates the end of the pre-filter life.
d) Extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE)。
For reporting the pre-filter life of the water treatment device, and preferably by means of a display device.
The system of the invention is used to send an alarm for replacing a prefilter.
In an exemplary embodiment of the invention, the control module stores data generated by the flow sensor; volume value (V) dispensed from a water treatment device at a given time since the last replacement or installation event of a pre-filtern) And a pre-filter replacement event. The control module also records the flow value (FR) sensed by the flow sensorn). Is supposed to be installedA flow rate of 400ml/min is sensed when the device or prefilter is replaced, the value is plotted against a volume of "0" and then values collected at predetermined volume intervals, for example after every 50 litres.
Predetermined flow rate value FRminStored in the control module, for example 80ml/min, extrapolating the graph to check the volume value (V) allocated at 80ml/minn) It should be the predicted lifetime of the pre-filter. If FR is assumednValues are extrapolated there to satisfy such a V of 80ml/minnThe value is 2000 l, this then means VEI.e. an estimated volume (V) indicative of the life of the prefilterE) Is 2000 litres, i.e. the pre-filter needs to be replaced after 2000 litres of water has been dispensed from the water treatment device. This is also the case when the pressure sensing unit is located upstream of the pre-filter. However, when the pressure sensing unit is located downstream of the pre-filter, the control module is also configured to detect when the pressure sensing unit detects less than the predetermined pressure value PminAnd is further configured to report an end of life of the pre-filter if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit. Therefore, if PminAt 5psi and "t" is stored 10 times and the predetermined volume value is 1 liter, the control module is configured to report the end of life of the pre-filter if the pressure sensing unit senses a pressure of less than 5psi at least 10 times, i.e., 10 or more times within the predetermined volume value, i.e., 1 liter. The reporting of the end of life occurs regardless of the estimated volume (V) indicative of the life of the prefilterE) Is somewhat independent.
The various features of the invention mentioned in the individual sections above may be applied to other sections as appropriate, mutatis mutandis. Thus, features detailed in one section may be combined with features detailed in other sections as appropriate. Any section headings are added for convenience only and are not intended to limit the disclosure in any way.
Claims (10)
1. A water treatment system for predicting pre-filter life, the system comprising:
A. a water treatment device, comprising:
i. an inlet;
a pre-filter downstream of the inlet;
a pressure sensing unit downstream of the pre-filter and upstream of the water treatment unit;
a water treatment unit further downstream of the pre-filter;
v. a flow sensor located downstream of the water treatment unit; and
an outlet for dispensing treated water; and
B. a control module capable of:
i. storing data generated by the flow sensor;
storing the volume value (V) dispensed from the water treatment device at a given time since the last replacement or installation event of the pre-filtern)；
Storing a pre-filter replacement event;
storing data from said pressure sensing unit and when said pressure sensing unit detects less than a predetermined pressure value PminWherein the control module is configured to:
a. recording a flow velocity value (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the water treatment system performance;
b. drawing FRnValue relative to VnA graph of values;
c. storing a predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnA value of less than FRminIndicates the end of pre-filter life;
d. extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value is an estimated volume (V) indicative of the life of the prefilterE) (ii) a And
e. reporting an end of pre-filter life if "E" is reported at least "t" times within a predetermined volume value dispensed by the water treatment unit.
2. The system of claim 1, wherein the control module is part of the water treatment device or part of a remotely located server.
3. The system of claim 2, wherein the control module comprises a communication module when the control module is part of a remotely located server.
4. The system of any one of claims 1 to 3, wherein the system further comprises a display device.
5. The system of claim 4, wherein the display device is part of a water treatment device or control module, or is a stand-alone portable device.
6. The system of claim 5, wherein the water treatment device further comprises a communication module when other components of the system, a control module, and/or a display device are not electrically connected to the water treatment device.
7. A method of predicting pre-filter life, the method comprising the steps of;
i. providing a system according to any one of claims 1 to 6;
record VnA value;
recording flow rate values (FR) sensed by the flow sensorn) Wherein FR isnIs a direct function of the pre-filter performance;
drawing FRnValue relative to VnA graph of values;
v. storing the predetermined flow rate value FRmin(ii) a Wherein FR isminIs FRnIs less than FRminIndicates the end of pre-filter life;
extrapolation from the graph to derive (FR)min) V of (C)nDerived FRminV of (C)nThe value being indicative of the pre-filter lifeEstimated volume of life (V)E)；
Reporting an end of life of a pre-filter when "E" is reported at least "t" times for a predetermined volume value dispensed by the water treatment unit; and
reporting end of life of the prefilter at event "E" overrides V during the life of the prefilternAt any stage of VEThe value is obtained.
8. The method of claim 7, wherein the method further comprises reporting a pre-filter end of life via the display device.
9. Use of a system according to any of claims 1 to 6 for predicting the pre-filter lifetime of a water treatment device.
10. Use of a system according to any one of claims 1 to 6 for reporting on a display device the pre-filter life of a water treatment device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP18200928.2 | 2018-10-17 | ||
| EP18200928 | 2018-10-17 | ||
| PCT/EP2019/075327 WO2020078661A1 (en) | 2018-10-17 | 2019-09-20 | A water treatment system and method for predicting prefilter life of the same |
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| Publication Number | Publication Date |
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| CN112867696A true CN112867696A (en) | 2021-05-28 |
| CN112867696B CN112867696B (en) | 2022-08-26 |
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| CN201980068950.9A Active CN112867696B (en) | 2018-10-17 | 2019-09-20 | Water treatment system and method for predicting life of pre-filter thereof |
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| Country | Link |
|---|---|
| CN (1) | CN112867696B (en) |
| PH (1) | PH12021550548A1 (en) |
| WO (1) | WO2020078661A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111661884A (en) * | 2020-06-15 | 2020-09-15 | 上海水成环保科技股份有限公司 | Control method and device based on water treatment, terminal and readable storage medium |
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| JPH11300357A (en) * | 1998-04-24 | 1999-11-02 | Toto Ltd | Water treating device |
| CN102548909A (en) * | 2009-10-06 | 2012-07-04 | 夏普株式会社 | Water purifier |
| CN104083936A (en) * | 2014-07-17 | 2014-10-08 | 北京亚都环保科技有限公司 | Method for monitoring state of filter element of water purification device, monitoring device and water purification device |
| CN104166797A (en) * | 2014-08-13 | 2014-11-26 | 艾欧史密斯（上海）水处理产品有限公司 | Method for determining service life of water purifier filter element |
| CN106915837A (en) * | 2015-12-28 | 2017-07-04 | 珠海格力电器股份有限公司 | Water cleaning systems and its filter element life determine method |
| CN107108276A (en) * | 2014-07-21 | 2017-08-29 | 伍薇 | Water supply management system |
-
2019
- 2019-09-20 WO PCT/EP2019/075327 patent/WO2020078661A1/en active Application Filing
- 2019-09-20 CN CN201980068950.9A patent/CN112867696B/en active Active
-
2021
- 2021-03-10 PH PH12021550548A patent/PH12021550548A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11300357A (en) * | 1998-04-24 | 1999-11-02 | Toto Ltd | Water treating device |
| CN102548909A (en) * | 2009-10-06 | 2012-07-04 | 夏普株式会社 | Water purifier |
| CN104083936A (en) * | 2014-07-17 | 2014-10-08 | 北京亚都环保科技有限公司 | Method for monitoring state of filter element of water purification device, monitoring device and water purification device |
| CN107108276A (en) * | 2014-07-21 | 2017-08-29 | 伍薇 | Water supply management system |
| CN104166797A (en) * | 2014-08-13 | 2014-11-26 | 艾欧史密斯（上海）水处理产品有限公司 | Method for determining service life of water purifier filter element |
| CN106915837A (en) * | 2015-12-28 | 2017-07-04 | 珠海格力电器股份有限公司 | Water cleaning systems and its filter element life determine method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020078661A1 (en) | 2020-04-23 |
| CN112867696B (en) | 2022-08-26 |
| PH12021550548A1 (en) | 2022-02-14 |
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