CN106679727A - Method for monitoring water taking, water using, water consumption and water draining in family life - Google Patents

Method for monitoring water taking, water using, water consumption and water draining in family life Download PDF

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Publication number
CN106679727A
CN106679727A CN201710025527.3A CN201710025527A CN106679727A CN 106679727 A CN106679727 A CN 106679727A CN 201710025527 A CN201710025527 A CN 201710025527A CN 106679727 A CN106679727 A CN 106679727A
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CN
China
Prior art keywords
water
monitoring
draining
household
family life
Prior art date
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Pending
Application number
CN201710025527.3A
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Chinese (zh)
Inventor
王建华
肖伟华
侯保灯
王浩
赵勇
严登华
鲁帆
周毓彦
杨恒
陈琰
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China Institute of Water Resources and Hydropower Research
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China Institute of Water Resources and Hydropower Research
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Publication date
Application filed by China Institute of Water Resources and Hydropower Research filed Critical China Institute of Water Resources and Hydropower Research
Priority to CN201710025527.3A priority Critical patent/CN106679727A/en
Publication of CN106679727A publication Critical patent/CN106679727A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass

Abstract

The invention provides a method for monitoring water taking, water using, water consumption and water draining in family life. The method comprises the following steps: determining the number of family life water using terminals and water draining terminals; making a water using type record form; mounting a flow metering device in the front of each family life water using terminal and numbering the flow metering devices; filling the water using type record form according to family life water using time, water using amount counted by the flow metering devices, the number of the flow metering devices and water using types of water for the family life; arranging an online humidity automatic monitoring device, and monitoring air humidity; arranging an online flow automatic monitoring device at each water draining terminal, and monitoring water draining flow; and carrying out continuous monitoring experiments in a preset monitoring time quantum. The method is novel in thinking and simple in principle, and online monitoring of water taking, water using, water consumption and water draining in family life can be realized.

Description

A kind of water intaking of family life, with the monitoring method of water, water consumption and draining
Technical field
The present invention relates to water resource technical field, more particularly to a kind of water intaking of family life, with the prison of water, water consumption and draining Survey method.
Background technology
With the fast development of social economy, the continuous improvement of living standards of the people, the household water of China resident Increasing by norm, Water consumption type also gradually increases.By monitoring the water consumption of various Water consumption types in household water, enter Row Scientific Regulation, while domestic water for dwellers efficiency is improved, suppresses the excessively rapid growth of household water, it has also become The important business of current city water management work.
Family is the underlying carrier that urban life consumes drainage procedure, carries out household internal consumption draining rule and process machine Reason research is to improve household water efficiency, promotes the key link of family life water saving, to conservation-minded society's unit carrier Build, lifting Urban Water managerial skills are significant.At present, China's urban residenital water demand is substantially realized Water meter measurement.But, existing water meter measurement can only typically record the total water consumption of household water, be used for each subitem Water cannot realize metering.And residential households domestic water includes that life such as is drunk with water, culinary art water, wash water, bathing use The polytypes such as water, wash water, flushing supply, use of watering flowers water, car washing water, each type of use water is in the sufficient feelings that supply water Under condition, can generally meet;And in the case of economizing on water in insufficient water or energetically, the domestic water of which type can be saved, What currently can specifically be saved uses water number amount, needs further to study clear and definite object as us.
2011, China formally established stringent water resources management system, using water total amount control as important regulation and control One of target.To implement cities and towns water total amount control targe, it is necessary to carry out depth to the validity and feasibility of different control measures Enter research.International experience shows, carries out household water and becomes more meticulous monitoring, popularization residential households water saving device, implementation resident Life stepped water pricing etc. is all the important means for controlling urban domestic water to increase.The Tap Water Price in Most current city is all Carried out stepped water pricing, if realizing water saving by improving water price, on the influence of the living standard of resident how, and which kind of influences The household water of type, is current problem demanding prompt solution.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of reliable family life water intaking, with water, water consumption and draining Monitoring method, can monitor water intaking in residential households domestic water, with water, water consumption and draining using the method, and it is follow-up right to be easy to Household water carries out Scientific Regulation, while domestic water for dwellers efficiency is improved, suppresses household water Excessively rapid growth.
In order to solve the above technical problems, offer technical scheme of the invention is as follows:
A kind of water intaking of family life, with the monitoring method of water, water consumption and draining, the monitoring method includes:
Determine the quantity of household water terminal and draining terminal;
Make Water consumption type record form;
Flow metering devices are installed before the household water terminal, and the flow metering devices are compiled Number;
According to water consumption, the numbering of flow metering devices and family that household water time, flow metering devices are counted The Water consumption type of front yard domestic water fills in the Water consumption type record form;
Online humidity automated monitor is set, air humidity is monitored;
Linear flow rate automated monitor is arranged in the draining end, drain discharge is monitored;
The selection predetermined monitoring time period continuously monitors experiment.
Further, in the monitoring method, the predetermined monitoring time period is at least 20 consecutive days.
Further, in the monitoring method, the monitoring experiment is quarterly carried out once.
Further, in the monitoring method, the flow metering devices, online humidity automated monitor and online Flow automated monitor is verified in monitoring process by predetermined period.
Further, in the monitoring method, the predetermined period was 7 consecutive days.
Further, in the monitoring method, the household water terminal sets Water consumption type label.
Further, in the monitoring method, the flow metering devices are turbine flowmeter.
Further, in the monitoring method, described is clamp-mounting type flow online certainly in linear flow rate automated monitor Dynamic monitoring device.
Further, in the monitoring method, when there is water re-using in the household water, the household water Time repeats to record the same monitoring time.
Further, in the monitoring method, when the household water has multi-purpose water, by first time family The monitoring time of domestic water is recorded to the record for reusing the household water.
Further, in the monitoring method, when there is multi-purpose water in the household water, the first time man Front yard domestic water is held using predetermined container, and when reusing the first time household water, record uses water class to described Type record form.
What the present invention was brought has the beneficial effect that:
In such scheme, by determining the quantity of household water terminal, Water consumption type record form is made, described Flow metering devices are installed before household water terminal, to household water time, flow within the predetermined monitoring time period The Water consumption type of the water consumption, the numbering of flow metering devices and household water of measuring equipment statistics is continuously monitored. Online humidity automated monitor is set, air humidity is monitored;It is automatic linear flow rate to be arranged in the draining end Monitoring device, is monitored to drain discharge.Technical solution of the present invention thinking is novel, principle is simple, can realize each life of family Apply flexibly the on-line monitoring of water.
Brief description of the drawings
Fig. 1 represents family provided in an embodiment of the present invention water intaking, the flow chart with the monitoring method of water, water consumption and draining;
Fig. 2 represents use family provided in an embodiment of the present invention water intaking, the typical case with the monitoring method of water, water consumption and draining Family's house type and domestic water terminal distribution schematic diagram.
Specific embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention Accompanying drawing, the technical scheme to the embodiment of the present invention is clearly and completely described.Obviously, described embodiment is this hair Bright a part of embodiment, rather than whole embodiments.Based on described embodiments of the invention, ordinary skill The every other embodiment that personnel are obtained, belongs to the scope of protection of the invention.
As shown in figure 1, the embodiment of the present invention a kind of water intaking of family is provided, with the monitoring method of water, water consumption and draining, it is described Monitoring method includes:
S01:Determine the quantity of household water terminal and draining terminal.
S02:Make Water consumption type record form.
S03:Flow metering devices are installed before the household water terminal, and the flow metering devices are carried out Numbering.
S04:According to water consumption, the numbering of flow metering devices that household water time, flow metering devices are counted The Water consumption type record form is filled in the Water consumption type of household water.
S05:Online humidity automated monitor is set, air humidity is monitored.
S06:Linear flow rate automated monitor is arranged in the draining end, drain discharge is monitored.
S07:The selection predetermined monitoring time period continuously monitors experiment.
Using such scheme, flow measurement is installed by the forebay in the household water terminal such as tap, shower nozzle Equipment, and water consumption, the numbering of flow metering devices and the family counted according to household water time, flow metering devices The Water consumption type of domestic water fills in Water consumption type record form, with reference to water consumption and family life that flow metering devices are counted The water time is used, the monitoring and metering of household water is realized.Online humidity automated monitor is set, air humidity is supervised Survey;Linear flow rate automated monitor is arranged in the draining end, drain discharge is monitored.
In the embodiment of the present invention, the installation of flow metering devices is connected by flexible pipe and accesses household water pipe network, and need not Original water equipment is transformed, the on-line monitoring of all types of water consumptions of family is realized.
Further, in the monitoring method, the predetermined monitoring time period is at least 20 consecutive days.
Using such scheme, monitoring experiment is taken through the continuous monitoring of at least 20 consecutive days, is conducive to reducing and monitors The influence that the randomness of data is brought, is further ensured that the stability of Monitoring Data.
Further, in the monitoring method, the monitoring experiment is quarterly carried out once.
Using such scheme, experiment is monitored by the time period for choosing Various Seasonal in a year, for throughout the year The selection monitoring time period is monitored experiment, reflects residential households domestic water in 1 year service condition of Various Seasonal, enters One step improves the confidence level of monitoring experimental data.
Further, in the monitoring method, the flow metering devices, online humidity automated monitor and online Flow automated monitor is verified in monitoring process by predetermined period.
Using such scheme, by the periodic check to flow metering devices, the work of flow metering devices is ensure that Precision.
Further, in the monitoring method, the predetermined period was 7 consecutive days.
Further, in the monitoring method, the household water terminal sets Water consumption type label.
Using such scheme, drunk with water, culinary art water, wash water, bath water, wash water, punching according to life Lavatory water, the Water consumption type watered flowers with household waters such as water and car washing waters, distinguish the Water consumption type of household water terminal, Water consumption type label is set to household water terminal, ensures that same type of domestic water uses water end using same as far as possible End.
Further, in the monitoring method, the flow metering devices are turbine flowmeter.
Using such scheme, turbine flowmeter outputs signals to recording instrument without paper by what is passed through, can realize on-line automatic Monitoring and metering function.Turbine flowmeter can carry out high frequency monitoring to the different pipeline flows with water terminal, and monitoring result is by counting Amount equipment is recorded automatically, and is stored in the storage card for carrying.
Further, in the monitoring method, described is clamp-mounting type flow online certainly in linear flow rate automated monitor Dynamic monitoring device.
Further, in the monitoring method, when there is water re-using in the household water, the household water Time repeats to record the same monitoring time.
Further, in the monitoring method, when the household water has multi-purpose water, by first time family The monitoring time of domestic water is recorded to the record for reusing the household water.
Further, in the monitoring method, when there is multi-purpose water in the household water, the first time man Front yard domestic water is held using predetermined container, and when reusing the first time household water, record uses water class to described Type record form.
As shown in Fig. 2 the embodiment of the present invention provides the typical household house type using the monitoring method of household water amount And domestic water terminal distribution schematic diagram.Wherein, between the sample households room house type is the storing of two Room, one Room a kitchen and a guard one, bag Include kitchen water purifier depotition cock 1, municipal tap water tap 2, automatic toilet washing machine water tap 3, Wash Units tap 4, toilet 5, shower nozzle for water heater 6.
Sample households provided in an embodiment of the present invention are located at Beijing's cell, and cell was built up in 1996, family housing Area about 70m2, the people of permanent resident population 4.Wherein, the age composition of kinsfolk is:More than the 60 years old people of retired old man 1, it is normal on-job Work 2 people, the people of child 1.Working day old man is in and looks after children, and the people of weekend 4 in addition to once in a while out, be in by basic whole day.People from family Equal living space 17.5m2, Family income per capita is toilet, water heater shower, Wash Units, complete close to Beijing's average income level Automatic washing machine etc. is substantially complete with the outfit of drainage facility utensil, separately possesses private car one, abundant with water species, is adapted to family's life It is living to fetch water, monitored with water, water consumption and draining type and tested.
According to home background, possible Water consumption type is listed, make Water consumption type record form, as shown in table 1.
As shown in Fig. 2 respectively in kitchen water purifier depotition cock 1, municipal tap water tap 2, the automatic washing machine fire hose First 3, turbine flow monitoring is respectively mounted on the cold water of Wash Units tap 4, toilet at the cold water end of water end (W.E.) 5 and shower nozzle 6 Measuring equipment, numbering is respectively:Kitchen water purifier depotition cock monitoring device 1, municipal tap water tap cold water monitoring device 2, Automatic washing machine tap monitoring device 3, Wash Units tap cold water monitoring device 4, shower nozzle cold water monitoring device 5, Toilet cold water monitoring device 6.Draining water automated monitor is installed in draining terminal, kitchen drainage terminal monitoring equipment 7, is defended Between life by two, the outside draining terminal monitoring equipment 8 shared with water terminal, shower drain draining terminal monitoring equipment 9, toilet Side floor drain draining terminal monitoring equipment 10.
Additionally, monitoring device is installed near water master switch valve on domestic running water, running water water intaking monitoring device 11; One monitoring and metering equipment, water heater hot-water monitoring device 12 are installed in water heater hot-water outlet pipe.In kitchen and toilet Between be respectively mounted the automatic monitoring calculation equipment of online humidity, the respectively online automatic monitoring calculation equipment 13 of humidity and online humidity Automatic monitoring calculation equipment 14.
Possible Water consumption type label is puted up with water end at each, causes that same type of water is only used as far as possible One is used water terminal, and such as Drinking Water and culinary art water is washed one's face and rinsed one's mouth and wash water only makes using only the tap 2 positioned at kitchen With the tap 4 positioned at toilet, flush the toilet and bath water has special water supply line.
To distinguish different types of use water monitoring, being selected one according to each family's daily schedule by sample households With end time record substantially use the water time, and fill in relative recording form.In the present embodiment, the time range of a day is to work as Morning 06 day:Morning 06 00 to next day:00, it is intended to record with water every time in principle.It should be noted that monitoring the time in table 1 It is example, not actual time.
Further, during monitoring test, every 7 consecutive days to turbine flow monitoring and metering equipment, online wet Spend automated monitor and verified once in linear flow rate automated monitor, to ensure the accuracy of monitoring test data.
Further, in monitoring test, Various Seasonal representative 4 time periods in 1 year, such as 3 are chosen The moon, June, September, December etc., carry out the monitoring experiment of household water, and monitoring experiment at least ensures in 20 natures every time More than day.
When further, for water re-using, such as same basin washing two plants vegetables, and can repeat to fill in record form The same monitoring time.
The residential households Water consumption type record sheet of table 1
Date:Date
When further, for multi-purpose water, such as the water of wash up is collected for flushing the toilet, will can be somebody's turn to do The monitoring time is accordingly filled up in being recorded with water of another type, or is contained using with the special container such as graduated bucket Water, the remarks " 2 barrels of water receiving " in the residential households Water consumption type of table 1 record, individually records again when specifically used.
Further, water withdrawal directly carries out collecting calculating, and and domestic running water using the record data of monitoring device The summary table number of degrees are compared.
Further, the water consumption of each type is calculated using corresponding monitoring device record data, cold water and hot water Addition obtains total water consumption.
Further, displacement is directly obtained by the automatic record data of each monitoring device.
Further, the dissipation water in parlor and bedroom is essentially identical with the water consumption that clean environment and environment are maintained;Kitchen The dissipation water in room and toilet, using monitoring kitchen and toilet air humidity and atmospheric humidity difference, with reference to kitchen with The spatial volume of toilet is calculated.
In each method embodiment of the present invention, the sequence number of each step can not be used to limit the sequencing of each step, right For those of ordinary skill in the art, on the premise of not paying creative work, the priority to each step changes also at this Within the protection domain of invention.
Above is the preferred embodiment of the present invention, it is noted that for those skilled in the art, Under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should be regarded as this The protection domain of invention.

Claims (11)

1. a kind of water intaking of family life, with the monitoring method of water, water consumption and draining, it is characterised in that the monitoring method includes:
Determine the quantity of household water terminal and draining terminal;
Make Water consumption type record form;
Flow metering devices are installed before the household water terminal, and the flow metering devices are numbered;
Water consumption, the numbering of flow metering devices and the family's life counted according to household water time, flow metering devices The Water consumption type for applying flexibly water fills in the Water consumption type record form;
Online humidity automated monitor is set, air humidity is monitored;
Linear flow rate automated monitor is arranged in the draining end, drain discharge is monitored;
The selection predetermined monitoring time period continuously monitors experiment.
2. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute State and make a reservation for the monitoring time period at least 20 consecutive days.
3. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute Stating monitoring experiment is quarterly carried out once.
4. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute State flow metering devices, online humidity automated monitor and linear flow rate automated monitor in monitoring process by predetermined week Phase is verified.
5. family life according to claim 4 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute Predetermined period is stated for 7 consecutive days.
6. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute State household water terminal and Water consumption type label is set.
7. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute Flow metering devices are stated for turbine flowmeter.
8. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute It is clamp-mounting type flow online auto monitoring equipment to state in linear flow rate automated monitor.
9. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that institute When stating household water and there is water re-using, the household water time repeats to record the same monitoring time.
10. family life according to claim 1 water intaking, with the monitoring method of water, water consumption and draining, it is characterised in that When the household water has multi-purpose water, the monitoring time of first time household water is recorded to reusing State the record of household water.
11. family lives according to claim 10 water intakings, with the monitoring method of water, water consumption and draining, it is characterised in that When the household water has multi-purpose water, the first time household water is held using predetermined container, is made again During with the first time household water, record to the Water consumption type record form.
CN201710025527.3A 2017-01-13 2017-01-13 Method for monitoring water taking, water using, water consumption and water draining in family life Pending CN106679727A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088525A (en) * 2017-12-19 2018-05-29 中国水利水电科学研究院 A kind of water consumption water method for tracing and system
CN108981839A (en) * 2018-08-09 2018-12-11 绵阳鼎飞益电子科技有限公司 A kind of service water amount intelligent monitoring method
CN109023847A (en) * 2018-06-11 2018-12-18 福建工程学院 Weather detection method and storage medium based on use in washing machine water

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019854A (en) * 2014-06-20 2014-09-03 江苏中源物联网技术发展有限公司 Monitoring and pre-warning device for enterprise water-related affairs
CN104236626A (en) * 2014-09-04 2014-12-24 北京清控人居环境研究院有限公司 Integrated online monitoring system for drainage pipeline liquid level and flow
CN106296447A (en) * 2016-08-02 2017-01-04 中国水利水电科学研究院 A kind of measuring method of life of urban resident water consumption

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019854A (en) * 2014-06-20 2014-09-03 江苏中源物联网技术发展有限公司 Monitoring and pre-warning device for enterprise water-related affairs
CN104236626A (en) * 2014-09-04 2014-12-24 北京清控人居环境研究院有限公司 Integrated online monitoring system for drainage pipeline liquid level and flow
CN106296447A (en) * 2016-08-02 2017-01-04 中国水利水电科学研究院 A kind of measuring method of life of urban resident water consumption

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
郑通汉: "《中国合同节水管理》", 30 September 2016, 中国水利水电出版社 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108088525A (en) * 2017-12-19 2018-05-29 中国水利水电科学研究院 A kind of water consumption water method for tracing and system
CN109023847A (en) * 2018-06-11 2018-12-18 福建工程学院 Weather detection method and storage medium based on use in washing machine water
CN108981839A (en) * 2018-08-09 2018-12-11 绵阳鼎飞益电子科技有限公司 A kind of service water amount intelligent monitoring method

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Application publication date: 20170517