CN109706999A - A kind of building secondary water-supply data acquisition and analysis system and method - Google Patents
A kind of building secondary water-supply data acquisition and analysis system and method Download PDFInfo
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- CN109706999A CN109706999A CN201811459184.2A CN201811459184A CN109706999A CN 109706999 A CN109706999 A CN 109706999A CN 201811459184 A CN201811459184 A CN 201811459184A CN 109706999 A CN109706999 A CN 109706999A
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Abstract
The present invention relates to a kind of building secondary water-supply data acquisition and analysis system and methods, belong to secondary water-supply technical field, solve the problems, such as available data acquisition mode real-time difference and lack secondary water supply system energy consumption analysis.It include: real time data acquisition module and data analysis and processing module；Real time data acquisition module for acquiring pressure, water supply and the power consumption of secondary water supply system in real time, and is sent to Data Analysis Services module in real time；Data Analysis Services module handles the data received, obtains the consumption information of secondary water supply system, and is analyzed.Acquisition device installation, easy to operate, high reliablity in the present invention, acquisition precision is high, and the real-time acquisition and transmission of data may be implemented；Furthermore it is possible to obtain the pressure trend of the total power consumption of the total water consumption of each water supply subarea, water pump, water pump inlet and outlet and system end water spot, the energy consumption of secondary water supply system is assessed, data is provided for secondary water supply system reducing energy consumption and supports.
Description
Technical field
The present invention relates to secondary water-supply technical field more particularly to a kind of building secondary water-supply data acquisition and analysis system and
Method.
Background technique
Secondary water-supply refers to " when the civilian requirement with industrial building Drinking Water to hydraulic pressure, water is more than that cities and towns are public
It supplies water or when self-built facility water supply network ability, by storing, pressurizeing etc., facilities supply user or personal water supply side through pipeline
Formula ".
Building energy consumption accounts for about the 30% of whole society's total energy consumption, and in building energy consumption, the energy of secondary water-supply
Consumption occupies the pith of total energy consumption, and especially skyscraper is since the number of plies is high, water consumption is big, so the water supply in secondary water-supply
Promotion and water distribution during can consume a large amount of energy.Existing second pressure water supply system generally uses water pump to pressurize, water
Pump is chosen according to the flow and lift of least favorable point.But, usual user terminal considerably less with the probability that least favorable situation occurs in water
Water consumption is much smaller than water pump assembly metered flow, and operating point deviates efficient operation section for a long time, and pump efficiency is lower, causes a large amount of
The waste of electric energy.For example, in widely used constant pressure water supply system, since to building water consumption, none is good
Monitoring and analysis, cause the unreasonable allocation of variable frequency pump, long-play is not energy-efficient instead.
Therefore, although more deep grind has been done to secondary water supply system by researcher and Related product manufacturing enterprise
Study carefully, but still has the defect that monitoring data acquisition precision is not high, real-time is poor for secondary water supply system, meanwhile, with
Chinese skyscraper is increasing, and ratio of the secondary water supply system energy consumption in building energy consumption gradually increases, to secondary water-supply system
System energy consumption, which carries out analysis, to be particularly important.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of building secondary water-supply data acquisition and analysis system and method,
To solve the problems, such as available data acquisition mode real-time difference and lack secondary water supply system energy consumption analysis.
The purpose of the present invention is mainly achieved through the following technical solutions:
On the one hand, provide a kind of building secondary water-supply data acquisition and analysis system, comprising: real time data acquisition module and
Data Analysis Services module；
The real time data acquisition module, for acquiring pressure, water supply and the power consumption number of secondary water supply system in real time
According to, and it is sent to the Data Analysis Services module in real time；
The Data Analysis Services module, handles the data received, obtains the energy consumption letter of secondary water supply system
Breath, and further analyze user's water habits and pump assembly operating condition.
The present invention has the beneficial effect that: real time data acquisition module in the present invention is easily installed, easy to operate, reliability
Height, can be adapted for a variety of secondary water supply systems, also, the data precision acquired is high, may be implemented data it is real-time acquire and
It sends.In addition, obtaining total supply, the water pump of each water supply subarea of secondary water supply system by handling the data of acquisition
The pressure change of total power consumption, water pump inlet and outlet and system end water spot, assesses the secondary water supply system of actual motion project
Energy consumption is reducing energy consumption, improves or new installation secondary water supply system provides data and supports.
On the basis of above scheme, the present invention has also done following improvement:
Further, the real time data acquisition module includes: data collecting instrument, ultrasonic flowmeter, pressure sensor, electricity
Table；
The pressure sensor acquires the pressure value of water pump intake-outlet, user terminal in secondary water supply system in real time, and
It is transferred to data collecting instrument；
The ultrasonic flow sensor, acquires the water supply of each water supply subarea of secondary water supply system in real time, and is transferred to
Data collecting instrument；
The ammeter acquires water pump assembly instantaneous power in real time, and is transferred to data collecting instrument；
Received data are carried out record storage by the data collecting instrument at set time intervals, and are sent to institute
State Data Analysis Services module.
Further, the time interval is 10s.
Further, the Data Analysis Services module obtains the consumption information of secondary water supply system, comprising: according to secondary confession
The water supply data of each water supply subarea of water system obtain secondary water supply system daily water consumption variation tendency, hourly consumption is distributed,
Instantaneous flow rate distribution, the distribution of the flow frequency；
According to the pressure value of water pump intake-outlet, user terminal in secondary water supply system, water pump assembly instantaneous power and two
The water supply data of secondary each water supply subarea of water system obtain the specific energy consumption of water pump assembly；Specific energy consumptionQ-segmentation flow in formula；Each section of flow distribution probability of β-correspondence；Each section of flow of η-is averaged
Efficiency；ρ-fluid density；G --- acceleration of gravity；H --- lift.
Further, the Data Analysis Services module further analyzes user's water habits and pump assembly operating condition, packet
It includes: user's water habits is analyzed according to daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution；
According to the distribution of the flow frequency and the Analysis of operation efficiency secondary water-supply water pump assembly operating condition of water pump assembly.
On the other hand, a kind of building secondary water-supply data acquisition analysis method is provided；The following steps are included:
Step S1 acquires pressure, water supply and the power consumption data of secondary water supply system in real time；
Step S2, using data collecting instrument by it is above-mentioned collect pressure, water supply, power consumption data according to setting time
Interval is stored, and is sent to Data Analysis Services module；
Step S3 handles the data received, obtains secondary water supply system by Data Analysis Services module
Consumption information, and further analyze user's water habits and pump assembly operating condition.
The present invention has the beneficial effect that: by easy for installation in the present invention, easy to operate, high reliablity can be adapted for
The data acquisition module of a variety of secondary water supply systems realizes the real-time acquisition and transmission of accurately data.In addition, by adopting
The data of collection are handled, obtain the total supply of each water supply subarea of secondary water supply system, the total power consumption of water pump, water pump inlet and outlet and
The pressure change of system end water spot assesses the energy consumption of the secondary water supply system of actual motion project, is reducing energy consumption,
It improves or new installation secondary water supply system provides data and supports.
On the basis of above scheme, the present invention has also done following improvement:
Further, pressure, water supply and the power consumption data of the real-time acquisition secondary water supply system, comprising:
Using pressure sensor, pump intake, water outlet, user terminal pressure value are acquired in real time, and be transferred to data
Acquisition Instrument；
Using ultrasonic flow sensor, the water supply of each water supply subarea of secondary water supply system is acquired in real time, and is transferred to
Data collecting instrument；
Using ammeter, water pump assembly instantaneous power is acquired in real time, and is transferred to data collecting instrument；
By data collecting instrument, received data are subjected to record storage at set time intervals, and be sent to number
According to analysis and processing module；
Further, the time interval is 10s.
Further, the consumption information for obtaining secondary water supply system, comprising: according to each water supply subarea of secondary water supply system
Water supply data obtain secondary water supply system daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution, flow
Frequency distribution；
According to the pressure value of water pump intake-outlet, user terminal in secondary water supply system, water pump assembly instantaneous power and two
The water supply data of secondary each water supply subarea of water system obtain the specific energy consumption of water pump assembly；Specific energy consumptionQ-segmentation flow in formula；Each section of flow distribution probability of β-correspondence；Each section of flow of η-is averaged
Efficiency；ρ-fluid density；G --- acceleration of gravity；H --- lift.
Further, the further analysis user water habits and pump assembly operating condition, comprising: according to civil water quantitative change
Change trend, hourly consumption distribution, instantaneous flow rate distribution analyze user's water habits；
According to the distribution of the flow frequency and the Analysis of operation efficiency secondary water-supply water pump assembly operating condition of water pump assembly.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is that secondary water-supply data acquisition and analysis system structural schematic diagram is built in the embodiment of the present invention；
Fig. 2 is real time data acquisition function structure chart in the embodiment of the present invention；
Fig. 3 is frequency changing speed adjusting secondary water system structure chart in the embodiment of the present invention；
Fig. 4 is that secondary water-supply collecting method flow chart is built in the embodiment of the present invention；
Fig. 5 is the average daily water consumption distribution map in certain cell high-rise resident building in the embodiment of the present invention 3；
Fig. 6 is certain cell high-rise resident building water consumption hour moisture Butut in the embodiment of the present invention 3；
Fig. 7 is certain cell high-rise resident building pump capacity-efficiency curve and flow frequency diagram in the embodiment of the present invention 3.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
Embodiment 1
A specific embodiment of the invention discloses a kind of building secondary water-supply data acquisition and analysis system, such as Fig. 1 institute
Show, comprising: real time data acquisition module and data analysis and processing module；Wherein,
Real time data acquisition module, for acquiring pressure, water supply and the power consumption data of secondary water supply system in real time, and
It is sent to Data Analysis Services module in real time；
Data Analysis Services module is analyzed and processed the data received, obtains the energy consumption letter of secondary water supply system
Breath, and further analyze user's water habits and pump assembly operating condition.
Compared with prior art, building secondary water-supply data acquisition and analysis system provided in this embodiment, data are adopted in real time
Collect module, be easily installed, easy to operate, high reliablity, can be adapted for a variety of secondary water supply systems, also, the data acquired
Precision is high, and the real-time acquisition and transmission of data may be implemented.In addition, obtaining secondary confession by handling the data of acquisition
The total supply of each water supply subarea of water system, the total power consumption of water pump, water pump are imported and exported and the pressure change of system end water spot, comments
Estimate the energy consumption of the secondary water supply system of actual motion project, be reducing energy consumption, improves or new installation secondary water supply system mentions
It is supported for data.
It should be noted that acquisition analysis system can be to existing most common four kinds of secondary water-supply systems in the present embodiment
System carries out data acquisition and energy consumption analysis, comprising: supercharging equipment and head-tank (case) combine secondary water supply system；Air pressure two
Secondary water system；Frequency changing speed adjusting secondary water system；Laminate secondary water supply system.
Real time data acquisition module, as shown in Figure 2, comprising: data collecting instrument, ultrasonic flowmeter, pressure sensor, electricity
Table；Wherein,
Pressure sensor acquires pump intake, water outlet, user terminal pressure value in real time, and is transferred to data acquisition
Instrument；
Ultrasonic flow sensor, acquires the water supply of each water supply subarea of secondary water supply system in real time, and is transferred to data
Acquisition Instrument；
Ammeter acquires water pump assembly instantaneous power in real time, and is transferred to data collecting instrument；
Received data are carried out record storage by data collecting instrument at set time intervals, and are sent to data point
Analyse processing module.
Specifically, outlet pipeline includes main pipe and branch pipe in secondary water supply system, and main pipe connects water pump, and (i.e. water pumps out
The mouth of a river), main pipe is divided into several branch pipes according to system form, connects user terminal valve, enters water in the main pipe of secondary water-supply equipment
Mouth, water outlet are equipped with pressure sensor (preferred, the model DJYL-PT type industrial stresses sensing of pressure sensor
Device), it is respectively used to acquire the pressure data of pump intake, water outlet in real time；Ultrasonic flow sensor (preferred, HK-
LDG duct type electromagnetic flowmeter) it is mounted at the effluent pipe mouth of secondary water-supply equipment main pipe；It is whole in the water supply pipe of user equipment
End least favorable point is equipped with pressure sensor, for acquiring user terminal pressure data in real time.
In addition, recording the energy consumption of electrical equipment by multifunction electric meter, including peak value, valley electricity, average electricity consumption
The parameters such as amount, realtime power；Further to measure total electricity consumption in water pump assembly instantaneous power and certain time period.
Real time data acquisition module includes multiple groups acquisition equipment, it should be noted that selects the group number of acquisition equipment and supplies
The pump group quantity of pump house is identical.Illustratively, when water supply pump house to be tested is when there are three sets of pump groups, a set of prison can be respectively set
3 sets of equipment (3 pieces of intelligent electric meter and its ancillary equipment, 9 pieces of pressure sensor, flow sensor 3, number is arranged in measurement equipment altogether
It is several according to 3 sets of vasculum, flexible cord)
It is emphasized that data collecting instrument every 10s record each water supply subarea of secondary water supply system total water consumption Q,
Pressure P1, P2, P3 of the total power consumption W of water pump assembly, water pump inlet and outlet and system end water spot, and stored, simultaneous transmission
(preferred, wirelessly transmit) to Data Analysis Services module (industrial personal computer, computer, processor etc.) and real-time display and
Storage greatly facilitates the acquisition and analysis work of data.
It is emphasized that the every 10s of data collecting instrument reads a data, the reality of system running state has been substantially carried out
When monitor, be 86400 seconds daily since water pump operation is a state lasting for a long time, using 10s as interval, each index
Data volume is 8640.By a large amount of reality and analysis of experimental data, find 10s also the most frequently used with people's domestic water when
Between (wash one's hands single flush time usual 8-14s or so, and the closestool moisturizing time is also in 10s~15s) degree of correspondence it is higher, can compare
Accurate reaction system water, the situation of change of water pump operation state.It is said from the angle of data volume, the amount of storage of field device
Limited, if reducing measurement interval, the storable total number of days of data is reduced, it has not been convenient to long term monitoring is carried out, it, can by taking 10s as an example
Deposit 30 days or so data.Therefore, acquisition time is set to 10s, it can realize and send in real time, and can satisfy down
The data analysis requirements of one step.
Data Analysis Services module obtains actual operating data for handling, monitors each water supply subarea of secondary water supply system
Total water consumption, the total power consumption of water pump, water pump inlet and outlet and system end water spot pressure changing, obtain consumption information；
Meanwhile user's water habits and secondary water-supply water pump assembly operating condition are analyzed, assess the energy consumption of actual motion project
Situation.
Data Analysis Services module obtains secondary water-supply system according to the water supply data of each water supply subarea of secondary water supply system
System daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution, the distribution of the flow frequency；According to secondary water supply system
The use of the pressure value of middle water pump intake-outlet, user terminal, water pump assembly instantaneous power and each water supply subarea of secondary water supply system
Water data obtain the operation energy consumption of water pump assembly；Wherein, daily water consumption variation tendency, hourly consumption distribution, instantaneous flow
Distribution can be by for statistical analysis to the data obtained in real time, and the mode for combining historical data to draw distribution map obtains.
For the operational efficiency and the distribution of the flow frequency under each flow of water pump assembly, specifically, the power consumption of water pump can pass through
Following formula calculates:
ρ --- fluid density (kg/m3)；G --- acceleration of gravity (m/s2)；Q --- flow (m3/s)；H --- lift
(mH2O)；The hourage of t --- pump operation；η1The efficiency value of-water pump；η2The efficiency value of-motor；
It can be seen that from the formula, the power consumption of water pump and flow, lift, the runing time of pump, the efficiency value of pump, motor of water pump
Efficiency value is in relation to (density difference between the water body of various regions, the difference of various regions acceleration of gravity is smaller, can ignore).From work
For Cheng Shiji, since the hourage of the pump head of disparity items, flow, pump operation is different, single relatively power consumption,
It is difficult to be analyzed and compared between different operating conditions.The parameters such as overall efficiency, specific energy consumption, ton water consumption can be used as secondary
The energy efficiency indexes of supply equipment, in which: overall efficiency η is pump efficiency η 1, electric efficiency η 2, frequency converter efficiency eta 3, internal biography
The product of defeated efficiency eta 4, i.e. η=η 1* η 2* η 3* η 4, as shown in Figure 3；Unit energy consumption E is that every cube of water is pressurized the consumption of 1 megapascal
Electric energy, unit KWh/m3MPa；Ton water consumption is known average unit energy consumption E and pressure of supply water P, then ton water consumption=E
× P, unit KWh/m3。
It should be noted that in the present embodiment for secondary water supply system entirety carry out energy consumption analysis not just in
Some specific equipment, therefore only need to consider the overall efficiency of supply equipment.I.e. by seeking specific energy consumption E, and as
Basis is evaluated by unit efficiency.Wherein, the relevant parameter of specific energy consumption E can pass through the water supply flow of secondary water-supply unit
Q, measure what real time data acquisitions modules such as unit power consumption (all components, equipment total power consumption such as including controller) obtained
Data are sought；That is specific energy consumptionQ-segmentation flow, m in formula3/h；Each section of flow of β-correspondence point
Cloth probability；The average efficiency of each section of flow of η-correspondence.
It obtains (being used according to daily water consumption variation tendency, hour as a result, analyzing user's water habits using above-mentioned processing data
Water distribution, instantaneous flow rate distribution) and secondary water-supply water pump assembly operating condition (according to the distribution of the flow frequency and water pump assembly
Operational efficiency), specifically:
Daily water consumption variation tendency: due to the difference on working day and day off, user builds the residence time in variety classes
Difference, the time that house is rested between date is relatively fewer, and reduces during day off in the office space time, different function
Energy type building is slightly different in the performance of average daily water consumption.Under normal circumstances, residential architecture water consumption is stopped with weekend, vacation etc.
The average daily water consumption of arrival of breath day is increased；Class of handling official business building is then due to the reduction of number of users during day off, water consumption
It is on a declining curve；In addition personnel's age of residential block and occupational structure also have certain influence to water consumption；It therefore, can be from building function
Energy, structure of personnel, work or day off are angularly analyzed.
Hourly consumption distribution, residential building and office type building are still in complementary shape.Under normal circumstances, two types
What the water use peak of building was both present in user arrives and departs from the period.Residential architecture water consumption is set out in user between date
Working before and come off duty get home after exist two obvious peak periods, day off water use peak compared with working day have 1-2 hours delay, and
Lunch, dinner period and the period is increased with water before sleeping.Office class building then reaches and leaves office space hourly water consumption in user
It is higher；Therefore, it can angularly be analyzed from building function and work or day off.
Instantaneous flow rate distribution: the frequency accounting height under water supply unit metered flow is analyzed.
Analyze secondary water-supply water pump assembly operating condition；90% or more power consumption exists in building secondary water supply system
In water pump, thus the number of pump energy consumption directly influences the number of building energy consumption.Therefore, water pump assembly selection is unreasonable causes
The wasting of resources it is the most serious, the energy consumption of secondary water supply system is built, with pressurized equipment model, quantity and water pump assembly
It is closely related to run programs.In the actual design work, for water-supply reliability the considerations of, designer would generally
Full water consumption content to retain sovereignty over a part of the country is taken, causes the water pump metered flow of selection bigger than normal than actual conditions, pump capacity selection is excessive to be will lead to
It is more higher than calculated value with the practical pressure of supply water of water spot, cause overpressure o utflow phenomenon, waste water resource；And it may result in water
Pump cannot be run in its high efficient district, reduced the working efficiency of water pump, increased water supply consumption, cause energy waste.Due to water
Pump is to select according to design second flow, and the flow of water supply system can not be equal to always design second flow, most of time
Be smaller than design second flow.Therefore, can be low from efficiency of energy utilization, efficiency supervises not in place, energy-saving run efficiency
Lowly, excessively high water pump, efficient section and user is selected angularly to analyze using matching degree difference.
Embodiment 2
Using the data acquisition and analysis system in embodiment 1, building secondary water-supply data acquisition analysis method is carried out, including
Following steps:
Step S1 acquires pressure, water consumption and the power consumption data of secondary water supply system in real time；
Step S2, using data collecting instrument by it is above-mentioned collect pressure, water consumption, power consumption data according to setting time
Interval is stored, and is sent to Data Analysis Services module；
Step S3 handles the data received, obtains secondary water supply system by Data Analysis Services module
Consumption information, and further analyze user's water habits and pump assembly operating condition.
Compared with prior art, building secondary water-supply data acquisition analysis method provided in this embodiment, by installation side
Just, easy to operate, high reliablity can be adapted for the data acquisition module of a variety of secondary water supply systems, and realization accurately counts
According to it is real-time acquisition and transmission.In addition, obtaining each water supply subarea of secondary water supply system by handling the data of acquisition
The pressure change of the total power consumption of total water consumption, water pump, water pump inlet and outlet and system end water spot, the two of assessment actual motion project
The energy consumption of secondary water system is reducing energy consumption, improves or new installation secondary water supply system provides data and supports.
Specifically, in step sl, real time data acquisition module is mounted on secondary water supply system, acquires two in real time
Pressure, water consumption and the power consumption data of secondary water system, specifically includes the following steps:
Step S101 acquires pump intake, water outlet, user terminal pressure value, and pass using pressure sensor in real time
It is defeated by data collecting instrument；
Step S102 acquires the water consumption of each water supply subarea of secondary water supply system using ultrasonic flow sensor in real time,
And it is transferred to data collecting instrument；
Step S103 acquires water pump assembly instantaneous power using ammeter in real time, and is transferred to data collecting instrument；
In step s 2, by data collecting instrument, received data are subjected to record storage at set time intervals,
And it is sent to Data Analysis Services module；
Total water consumption Q, water pump assembly total power consumption of the data collecting instrument every 10s record each water supply subarea of secondary water supply system
W, pressure P1, P2, P3 of water pump inlet and outlet and system end water spot, and stored, simultaneous transmission (it is preferred, with wireless
Mode is transmitted) to Data Analysis Services module (industrial personal computer, computer, processor etc.) and real-time display and storage, it is greatly square
Data acquisition and analysis work.
It is emphasized that the every 10s of data collecting instrument reads a data, the reality of system running state has been substantially carried out
When monitor, be 86400 seconds daily since water pump operation is a state lasting for a long time, using 10s as interval, each index
Data volume is 8640.By a large amount of reality and analysis of experimental data, find 10s also the most frequently used with people's domestic water when
Between (wash one's hands single flush time usual 8-14s or so, and the closestool moisturizing time is also in 10s~15s) degree of correspondence it is higher, can compare
Accurate reaction system water, the situation of change of water pump operation state.It is said from the angle of data volume, the amount of storage of field device
Limited, if reducing measurement interval, the storable total number of days of data is reduced, it has not been convenient to long term monitoring is carried out, it, can by taking 10s as an example
Deposit 30 days or so data.Therefore, acquisition time is set to 10s, it can realize and send in real time, and can satisfy down
The data analysis requirements of one step.
In step s3, the actual operating data of acquisition is handled, the total water of each water supply subarea of secondary water supply system is monitored
The pressure changing of amount, the total power consumption of water pump, water pump inlet and outlet and system end water spot, obtains consumption information；Meanwhile to
Family water habits and secondary water-supply water pump assembly operating condition are analyzed, and the energy consumption of actual motion project is assessed.
The variation of secondary water supply system daily water consumption is obtained according to the water usage data of each water supply subarea of secondary water supply system to become
Gesture, hourly consumption distribution, instantaneous flow rate distribution, the distribution of the flow frequency；According to water pump intake-outlet, use in secondary water supply system
The water usage data of the pressure value at family end, water pump assembly instantaneous power and each water supply subarea of secondary water supply system obtains water pump machine
The operation energy consumption of group；Wherein, daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution can be by real-time
The data of acquisition are for statistical analysis, and the mode for combining historical data to draw distribution map obtains.
For the operational efficiency and the distribution of the flow frequency under each flow of water pump assembly, specifically, the power consumption of water pump can pass through
Following formula calculates:
ρ --- fluid density (kg/m3)；G --- acceleration of gravity (m/s2)；Q --- flow (m3/s)；H --- lift
(mH2O)；The hourage of t --- pump operation；η1The efficiency value of-water pump；η2The efficiency value of-motor；
It can be seen that from the formula, the power consumption of water pump and flow, lift, the runing time of pump, the efficiency value of pump, motor of water pump
Efficiency value is in relation to (density difference between the water body of various regions, the difference of various regions acceleration of gravity is smaller, can ignore).From work
For Cheng Shiji, since the hourage of the pump head of disparity items, flow, pump operation is different, single relatively power consumption,
It is difficult to be analyzed and compared between different operating conditions.The parameters such as overall efficiency, specific energy consumption, ton water consumption can be used as secondary
The energy efficiency indexes of supply equipment, in which: overall efficiency η is pump efficiency η 1, electric efficiency η 2, frequency converter efficiency eta 3, internal biography
The product of defeated efficiency eta 4, i.e. η=η 1* η 2* η 3* η 4, as shown in Figure 3；Unit energy consumption E is that every cube of water is pressurized the consumption of 1 megapascal
Electric energy, unit KWh/m3MPa；Ton water consumption is known average unit energy consumption E and pressure of supply water P, then ton water consumption=E
× P, unit KWh/m3。
It should be noted that in the present embodiment for secondary water supply system entirety carry out energy consumption analysis not just in
Some specific equipment, therefore only need to consider the overall efficiency of supply equipment.I.e. by seeking specific energy consumption E, and as
Basis is evaluated by unit efficiency.Wherein, the relevant parameter of specific energy consumption E can pass through the water supply flow of secondary water-supply unit
Q, measure what real time data acquisitions modules such as unit power consumption (all components, equipment total power consumption such as including controller) obtained
Data are sought, i.e. specific energy consumptionQ-segmentation flow, m in formula3/h；Each section of flow of β-correspondence point
Cloth probability；The average efficiency of each section of flow of η-correspondence.
It is obtained using above-mentioned processing data as a result, analyze user's water habits and secondary water-supply water pump assembly operating condition,
Specifically, comprising:
Step S301, daily water consumption analysis of trend: due to the difference on working day and day off, user is in variety classes
Residence time difference is built, the time that house is rested between date is relatively fewer, and during day off at office space
Between reduce, different function type building it is slightly different in the performance of average daily water consumption.Under normal circumstances, residential architecture water consumption with
The average daily water consumption of the arrival on the day offs such as weekend, vacation is increased；Class of handling official business building is then due to number of users during day off
Reduction, water consumption is on a declining curve；In addition personnel's age of residential block and occupational structure also have certain influence to water consumption；Cause
This, can angularly analyze from building function, structure of personnel, work or day off.
Step S302, hourly consumption distributional analysis, residential building and office type building are still in complementary shape.General feelings
Under condition, what the water use peak of two types building was both present in user arrives and departs from the period.Residential architecture is used between date
Water before user sets out and goes to work and come off duty get home after there are two obvious peak periods, day off water use peak has 1- compared with working day
Postpone within 2 hours, and the period is increased with water in lunch, dinner period and before sleeping.Office class building, which is then reached and left in user, to be done
Public place hourly water consumption is higher；Therefore, it can angularly be analyzed from building function and work or day off.
The frequency accounting height under water supply unit metered flow is analyzed in step S303, instantaneous flow rate distribution analysis.
Step S304, the analysis of secondary water-supply water pump assembly operating condition；90% or more in building secondary water supply system
Power consumption is in water pump, thus the number of pump energy consumption directly influences the number of building energy consumption.Therefore, water pump assembly selects
The wasting of resources caused by unreasonable is the most serious, builds the energy consumption of secondary water supply system, with pressurized equipment model, quantity and
The operation programs of water pump assembly are closely related.In the actual design work, for water-supply reliability the considerations of, if
Meter person would generally take full water consumption content to retain sovereignty over a part of the country, cause the water pump metered flow of selection bigger than normal than actual conditions, pump capacity selection
It is excessive to will lead to more higher than calculated value with the practical pressure of supply water of water spot, cause overpressure o utflow phenomenon, waste water resource；And it can
Water pump, which can be will lead to, to be run in its high efficient district, reduced the working efficiency of water pump, increased water supply consumption, cause the energy unrestrained
Take.Since water pump is to select according to design second flow, and the flow of water supply system can not be equal to always design second flow, greatly
Most time, which is smaller than, designs second flow.Therefore, can be low from efficiency of energy utilization, efficiency supervision is not in place, energy saving
Operational efficiency is low, and excessively high water pump, efficient section and user is selected angularly to analyze using matching degree difference.
Embodiment 3
Using data acquisition analysis method in data acquisition and analysis system in embodiment 1 and embodiment 2, carry out practical secondary
The acquisition of water system data and analysis.Specifically, to the fortune of the pipe network pressure-superposed constant pressure frequency conversion water supply system of Beijing's residential building
Row data are acquired.Totally 18 layers on the ground of the residential building, every layer of 12 family, wherein 1 layer and 2 layers is directly supplied water by city planting ductwork, 3~
18 layers using constant pressure frequency conversion water supply system pressurizing feedwater, water supply water pump is the using and the reserved at totally 192 families.Municipal ductwork pressure 37m, water
Pump discharge pressure is set as 70m.Major parameter is shown in Table 1.
1 constant pressure frequency conversion water supply water pump major parameter (power frequency) of table
To the data of monitoring into water per analysis；The building is located at Beijing City, amounts to 18 layer of 216 family, wherein adopts for 3-18 layers
It is pressurizeed and is supplied water with constant pressure frequency conversion system.As shown in figure 5, average daily water consumption distribution is more average, minimum water consumption appears in Thursday,
For 56.57m3, up to Saturday 74.30m3, it is 1.14 with water daily variation factor.Water pump efficiency minimum 37%, highest
48%.
Hour water distribution situation analysis: as shown in fig. 6, there is a larger increase in the late into the night on day off compared with working day with water, and
Water use peak is postponed in time, and for rest civil water morning evening peak in 7-9 and when 17-20, work civil water is sooner or later high
When peak is 7-8,17 when and when 22.
Instantaneous flow rate distribution analysis and pump working efficiency analysis: the residential building is distributed with the water flow frequency and corresponding flow
Under water pump assembly efficiency as shown with 7, the highest range of flow of frequency of occurrence be 3-3.5m3/ h, the frequency of occurrences 16.1%,
And the flow is only about the 50% of maximum stream flow；Maximum stream flow range 7.5-8m3The frequency of occurrences of/h is only 0.15%；Furthermore small
Range of flow 0-0.5m3The frequency of occurrences of/h is 11.6%, also belongs to maximum probability range of flow.
It will be understood by those skilled in the art that realizing all or part of the process of above-described embodiment method, meter can be passed through
Calculation machine program instruction relevant hardware is completed, and the program can be stored in computer readable storage medium.Wherein, described
Computer readable storage medium is disk, CD, read-only memory or random access memory etc..
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of building secondary water-supply data acquisition and analysis system characterized by comprising real time data acquisition module and data
Analysis and processing module；
The real time data acquisition module, for acquiring pressure, water supply and the power consumption data of secondary water supply system in real time, and
It is sent to the Data Analysis Services module in real time；
The Data Analysis Services module, handles the data received, obtains the consumption information of secondary water supply system, and
Further analyze user's water habits and pump assembly operating condition.
2. building secondary water-supply data acquisition and analysis system according to claim 1, which is characterized in that the data are real-time
Acquisition module includes: data collecting instrument, ultrasonic flowmeter, pressure sensor, ammeter；
The pressure sensor, acquires the pressure value of water pump intake-outlet, user terminal in secondary water supply system in real time, and transmits
To data collecting instrument；
The ultrasonic flow sensor, acquires the water supply of each water supply subarea of secondary water supply system in real time, and is transferred to data
Acquisition Instrument；
The ammeter acquires water pump assembly instantaneous power in real time, and is transferred to data collecting instrument；
Received data are carried out record storage by the data collecting instrument at set time intervals, and are sent to the number
According to analysis and processing module.
3. building secondary water-supply data acquisition and analysis system according to claim 2, which is characterized in that the time interval
For 10s.
4. building secondary water-supply data acquisition and analysis system according to claim 3, which is characterized in that the data analysis
The consumption information of processing module acquisition secondary water supply system, comprising: according to the water supply number of each water supply subarea of secondary water supply system
According to obtain secondary water supply system daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution, the flow frequency distribution；
According to the pressure value of water pump intake-outlet, user terminal in secondary water supply system, water pump assembly instantaneous power and secondary confession
The water supply data of each water supply subarea of water system obtain the specific energy consumption of water pump assembly；Specific energy consumptionQ-segmentation flow in formula；Each section of flow distribution probability of β-correspondence；Each section of flow of η-is averaged
Efficiency；ρ-fluid density；G --- acceleration of gravity；H --- lift.
5. building secondary water-supply data acquisition and analysis system according to claim 4, which is characterized in that the data analysis
Processing module further analyzes user's water habits and pump assembly operating condition, comprising: according to daily water consumption variation tendency, hour
Water consumption distribution, instantaneous flow rate distribution analyze user's water habits；
According to the distribution of the flow frequency and the Analysis of operation efficiency secondary water-supply water pump assembly operating condition of water pump assembly.
6. a kind of building secondary water-supply data acquisition analysis method using system described in one of claim 1-5, feature exist
In, comprising the following steps:
Step S1 acquires pressure, water supply and the power consumption data of secondary water supply system in real time；
Step S2 collects pressure, water supply, power consumption data at set time intervals for above-mentioned using data collecting instrument
It is stored, and is sent to Data Analysis Services module；
Step S3 is handled the data received by Data Analysis Services module, obtains the energy consumption of secondary water supply system
Information, and further analyze user's water habits and pump assembly operating condition.
7. building secondary water-supply data acquisition analysis method according to claim 6, which is characterized in that the real-time acquisition
Pressure, water supply and the power consumption data of secondary water supply system, comprising:
Using pressure sensor, pump intake, water outlet, user terminal pressure value are acquired in real time, and are transferred to data acquisition
Instrument；
Using ultrasonic flow sensor, the water supply of each water supply subarea of secondary water supply system is acquired in real time, and is transferred to data
Acquisition Instrument；
Using ammeter, water pump assembly instantaneous power is acquired in real time, and is transferred to data collecting instrument；
By data collecting instrument, received data are subjected to record storage at set time intervals, and are sent to data point
Analyse processing module.
8. building secondary water-supply data acquisition analysis method according to claim 7, which is characterized in that the time interval
For 10s.
9. building secondary water-supply data acquisition analysis method according to claim 8, which is characterized in that the acquisition is secondary
The consumption information of water system, comprising: obtain secondary water-supply system according to the water supply data of each water supply subarea of secondary water supply system
System daily water consumption variation tendency, hourly consumption distribution, instantaneous flow rate distribution, the distribution of the flow frequency；
According to the pressure value of water pump intake-outlet, user terminal in secondary water supply system, water pump assembly instantaneous power and secondary confession
The water supply data of each water supply subarea of water system obtain the specific energy consumption of water pump assembly；Specific energy consumptionQ-segmentation flow in formula；Each section of flow distribution probability of β-correspondence；Each section of flow of η-is averaged
Efficiency；ρ-fluid density；G --- acceleration of gravity；H --- lift.
10. building secondary water-supply data acquisition analysis method according to claim 9, which is characterized in that described further
Analyze user's water habits and pump assembly operating condition, comprising: according to daily water consumption variation tendency, hourly consumption distribution, wink
When flow distribution analyze user's water habits；
According to the distribution of the flow frequency and the Analysis of operation efficiency secondary water-supply water pump assembly operating condition of water pump assembly.
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Application publication date: 20190503 |