CN110185084A - A kind of zero water hammer Intelligent constant-voltage water system of more pumps and its regulation method - Google Patents
A kind of zero water hammer Intelligent constant-voltage water system of more pumps and its regulation method Download PDFInfo
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- CN110185084A CN110185084A CN201910483327.1A CN201910483327A CN110185084A CN 110185084 A CN110185084 A CN 110185084A CN 201910483327 A CN201910483327 A CN 201910483327A CN 110185084 A CN110185084 A CN 110185084A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 282
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000006243 chemical reaction Methods 0.000 claims abstract description 116
- 238000003860 storage Methods 0.000 claims abstract description 10
- 230000006837 decompression Effects 0.000 claims abstract description 5
- 230000000712 assembly Effects 0.000 claims description 84
- 238000000429 assembly Methods 0.000 claims description 84
- 230000008569 process Effects 0.000 claims description 22
- 239000008400 supply water Substances 0.000 claims description 8
- 230000003068 static effect Effects 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 206010044565 Tremor Diseases 0.000 abstract 1
- 239000012141 concentrate Substances 0.000 abstract 1
- 230000001133 acceleration Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000003287 bathing Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000306 recurrent effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/02—Methods or layout of installations for water supply for public or like main supply for industrial use
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
- E03B11/10—Arrangements or adaptations of tanks for water supply for public or like main water supply
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/078—Combined units with different devices; Arrangement of different devices with respect to each other
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The embodiment of the invention discloses one kind to pump zero water hammer Intelligent constant-voltage water system more, including the variable frequency pump unit being connect with residential quarter water storage tank, according to floor height or customer objective variable frequency pump unit is divided into low-pressure area by the height with supply equipment, middle pressure area, it supplies water respectively higher-pressure region, the supply equipment exit installation in each section is equipped with several pressure sensors, each pressure sensor is connected to the central control single chip computer of corresponding controller, frequency-variable controller constant pressure regulation unit in variable frequency pump unit is compared according to the actual pressure of pipeline with goal pressure, according to the size for comparing pressure difference, it adjusts the output frequency of frequency converter and participates in the quantity of operation water pump, the regulation method of the water system includes starting constant pressure regulator control system, add pump pressurization balance, subtract pump decompression balance, maintain dynamic equilibrium, simultaneously using multiple water pumps It arranges independent frequency conversion type boosting and concentrates combination type decompression, can avoid hydraulic pressure shakiness problem.
Description
Technical field
The present embodiments relate to constant pressure water supply technical fields, and in particular to a kind of zero water hammer Intelligent constant-voltage of more pumps is for water system
System and its regulation method.
Background technique
With social development, city is constantly extended, and in present water system, pipeline network construction is complicated, and the old and new's replacement is too late
When, the old and new's pipe network is for causing the leakage of water in pipe network.Leakage can reduce pipe network water pressure, prevent water system is from normally transporting
Row.Furthermore in construction project, pipe network damage also happens occasionally.Pollution of waterhead is also recurrent existing under industry develops on a large scale
As.Therefore, in order to ensure people's water safety, the guarantee people drinks safe drinking water, provides constant pressure Emergency water supply,
It supplements the constant pressure Emergency water supply demand of the units such as village, cell, hotel, school, there is important social value.
The water supply modes of water system mainly drag based on how monotropic frequency hydrotechny and changeable frequency hydrotechny with one at present,
So-called one drags more single converter techniques, i.e., inadequate in single pump water, when needing to increase a water pump operation be added, the water pump that is added into
It cuts power frequency operation (i.e. directly with maximum speed full speed running), at this time since direct full speed running makes pump outlet hydraulic pressure straight
It is many to connect raising, variation in water pressure is very big, " water hammer " said in the industry at once, brings the unstable suddenly big or suddenly small problem of hydraulic pressure to user；
And changeable frequency hydrotechny pumped although being not in serious problem of water hammer during changeable frequency is added and subtracted and pumped in plus-minus
Cheng Zhong, high-low pressure dead time have 5-30 seconds, and high-low pressure pressure difference also can in the variation of 0.5-3.0Bar, user with water from
So also very uncomfortable, when bathing, there is also sometimes hot and sometimes cold problem.
It there is now a kind of constant pressure water supply system application No. is 201711393915.3, the control system of constant pressure water supply be provided
System, by acquiring and analyzing the hydraulic pressure information of the first pump outlet and the rotary speed information of the first water pump driving device in real time,
The revolving speed of real-time monitoring the first water pump driving device, to keep the water pressure invariableness of the first pump outlet.But it only uses one
Conveying and Isobarically Control that water pump completes water are covered, causes the pressure of water pump too big, and in regulation process, the control of hydraulic pressure is not
It can adjust in time, cannot fundamentally solve the problems, such as water flow unevenness completely.
Summary of the invention
For this purpose, the embodiment of the present invention provides one kind pumps zero water hammer Intelligent constant-voltage water system and its regulation method more, with solution
The certainly problem suddenly big or suddenly small due to water flow caused by hydraulic pressure acute variation in the prior art.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions: a kind of zero water hammer Intelligent constant-voltage of more pumps
Water system, including the variable frequency pump unit connecting with residential quarter water storage tank, the output end of the variable frequency pump unit connects jointly
It is connected to vibration means for main pipe for supplying water road, several water outlets in the vibration means for main pipe for supplying water road are connected with the lateral to supply water to different buildings
The junction in group, the lateral group and vibration means for main pipe for supplying water road is respectively equipped with the more pump assemblys of frequency conversion, the more pump assembly lists of frequency conversion
It solely supplies water to the unit floor of corresponding work, and is equipped with several pressure for being distributed in different height in the lateral group
Sensor, the pressure sensor are connect by telecommunication unit with central control single chip computer component, the pressure sensor
It is mounted on the input terminal of central control single chip computer component, the variable frequency pump unit and frequency conversion more pump assemblys and list is regulated and controled by constant pressure
Member is mounted on the output end of central control single chip computer component.
The embodiment of the present invention is further characterized in that the pressure sensor is different high in each lateral group for acquiring
The hydraulic pressure intensity of degree, and central control single chip computer component is used to receive the unit building different height of the pressure sensor acquisition
Hydraulic signal, the center control single chip computer component regulates and controls the unit adjustment variable frequency pump unit and more pump machines of frequency conversion by constant pressure
The working strength of group.
The embodiment of the present invention is further characterized in that the constant pressure regulation unit includes pumping to variable frequency pump unit and frequency conversion more
The sorting code number unit that unit is grouped, and the PWM frequency modulation list of adjustment variable frequency pump unit and the more pump assembly revolving speeds of frequency conversion
Multiple water pumps of member, the variable frequency pump unit are mutually indepedent and are listed in the water outlet of residential quarter water storage tank, and the classification
Sequentially label, multiple water pumps of the more pump assemblys of frequency conversion are mutually indepedent to multiple water pumps in variable frequency pump unit for coding unit
And it is listed in the water outlet in vibration means for main pipe for supplying water road, and the sorting code number unit also sequentially marks multiple water pumps of the more pump assemblys of frequency conversion
Number.
The embodiment of the present invention is further characterized in that the water supply pressure of the PWM frequency modulation unit control variable frequency pump unit is pressed
According to incrementally increase or degression type reduce.
The embodiment of the present invention is further characterized in that the variable frequency pump unit and the more pump assemblys of frequency conversion include that several groups are more
Water pump power machine, the water pump in the variable frequency pump unit and the more pump assemblys of frequency conversion is according to label sequence starting work from small to large
Make, and the water pump of the variable frequency pump unit and the more pump assemblys of frequency conversion also stops working according to label sequence from small to large,
When all water pumps stop or start work and then again by variable frequency pump machine in variable frequency pump unit and the more pump assemblys of frequency conversion
Water pump in group and the more pump assemblys of frequency conversion is again started up or stops according to label sequence from small to large.
The embodiment of the present invention is further characterized in that, be additionally provided in the center control single chip computer component parameter collection module,
Data comparison module and water pump assembly node control module, the parameter collection module receive the real-time hydraulic pressure of pressure sensor
The operating parameter information of information and the more pump assemblys of frequency conversion, and the data comparison module is by real-time hydraulic pressure information and standard hydraulic pressure
Information is compared, at the same the data comparison module by the more pump assemblys of frequency conversion driving flow and variable frequency pump unit driving
Flow compares, and the more pump assemblys of frequency conversion constitute control node, the water pump machine with the variable frequency pump unit of corresponding subregion
Group node control module controls the work of the variable frequency pump unit of the more pump assemblys of frequency conversion and corresponding control node according to comparison result
Intensity.
In addition the present invention have also been devised one kind more pump zero water hammer Intelligent constant-voltage water system regulation method, specifically include as
Lower step:
Step 100, starting constant pressure regulator control system, started in a manner of frequency conversion drive residential quarter all variable frequency pump units and
The more pump assemblys of frequency conversion, when the pressure sensor acquisition signal in lateral group is standard hydraulic pressure, parameter collection module difference
Under record standard water pressure condition, variable frequency pump unit that standard hydraulic pressure supplies water and the numbers of the more pump assemblys of frequency conversion and right are participated in
The pump rotary speed flow parameter answered；
Step 200 plus pump pressurization balance, and for the water in lateral group using increasing, pressure sensor detects branch
Hydraulic pressure in pipeline group is reduced to standard hydraulic pressure hereinafter, the central corresponding variable frequency pump for participating in supplying water of control single chip computer component control
Unit and the more pump assemblys of frequency conversion accelerate work simultaneously, until the pressure sensor in lateral group maintains standard hydraulic pressure, guarantee
The dynamic equilibrium of water supply process；
Step 300 subtracts pump decompression balance, and for the water in lateral group using reducing, pressure sensor detects branch
Hydraulic pressure in pipeline group rises, the variable frequency pump unit and frequency conversion that the corresponding participation of center control single chip computer component control is supplied water
Decelerating operation, reduction water flow guarantee to supply more pump assemblys until the pressure sensor in lateral group maintains standard hydraulic pressure simultaneously
The dynamic equilibrium of water process；
Step 400 maintains dynamic equilibrium, in the way of the converting operation of variable frequency pump unit and the more pump assemblys of frequency conversion, protects
The each pressure sensor held in lateral group is in standard hydraulic pressure.
The embodiment of the present invention is further characterized in that, in step 100, after starting constant pressure regulator control system, divides pipeline circle
When water pressure condition is standard hydraulic pressure, the variable frequency pump unit and the more pump assembly decelerating operations of frequency conversion are until flat with water gravity
Weighing apparatus guarantees that constant pressure regulator control system maintains static water supply balance.
The embodiment of the present invention is further characterized in that, in step 200, when the water pump for participating in water supply static balancing accelerates to
When highest rated speed, when the hydraulic pressure of the pressure sensor detection is also less than standard hydraulic pressure, become in the same node of variable frequency starting
The water pump of frequency water pump assembly and the more pump assembly not running of frequency conversion is replenished in time water to achieve the purpose that constant pressure, guarantees constant pressure tune
Control system maintains dynamic water supply balance；
In step 300, when the water pump run in step 200 decelerates to minimum rated revolving speed, the pressure sensing
The hydraulic pressure of device detection is when being also greater than standard hydraulic pressure, stops running in variable frequency pump unit and the more pump assemblys of frequency conversion in same node
Water pump reduces water in time to achieve the purpose that constant pressure, guarantees that constant pressure regulator control system maintains dynamic water supply balance.
The embodiment of the present invention is further characterized in that, the revolving speed of the variable frequency pump unit and the more pump assemblys of frequency conversion at work
Can be different, the water flow total amount of the more pump assembly drivings of variable frequency pump unit and frequency conversion is identical.
The embodiment of the present invention has the advantages that the present invention uses two sets of water to convey water and maintain hydraulic pressure respectively
Pump, therefore the different units building of residential quarter can realize the way of supplying water of independent parallel formula, to realize the water supply in different units building
Process is mutually left alone, and the variation of water is reduced, and improves the stability of constant pressure water supply work, in addition independent side by side using multiple water pumps
Frequency conversion type boosting mode can avoid the unstable suddenly big or suddenly small problem of hydraulic pressure, so that hydraulic pressure boosts according to the mode of incrementally increasing
Regulation, while concentrating combination type to be depressured mode using multiple water pumps, the high pressure dead time can be reduced, it is suddenly big further to solve hydraulic pressure
Suddenly small problem.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the mechanical system structure diagram of water supply provided by the invention；
Fig. 2 is water management system structural schematic diagram provided by the invention；
In figure:
The residential quarter 1- water storage tank；3- vibration means for main pipe for supplying water road；4- lateral group；The more pump assemblys of 5- frequency conversion；6- pressure sensor；
7- telecommunication unit；The center 8- control single chip computer component；9- constant pressure regulates and controls unit；
801- parameter collection module；802- data comparison module；803- water pump assembly node control module；
901- sorting code number unit；902-PWM frequency modulation unit.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides one kind to pump zero water hammer Intelligent constant-voltage water system more, this system is in practical application
Principle be according to floor height or customer objective difference in height with supply equipment, variable frequency pump unit is divided into low-pressure area,
Middle pressure area, higher-pressure region are supplied water respectively, and the supply equipment exit installation in each section is equipped with several pressure sensors, each pressure
Force snesor is connected to the central control single chip computer of corresponding controller, and the frequency-variable controller constant pressure in variable frequency pump unit regulates and controls single
The pipeline actual pressure that member is fed back according to pressure transmitter is compared with goal pressure, according to the size for comparing pressure difference, adjusts
The output frequency of frequency converter and the quantity for participating in operation water pump.
To be illustrated below with specific embodiment: this constant pressure water supply system, which is specifically included, to be connect with residential quarter water storage tank 1
Variable frequency pump unit, the output end of variable frequency pump unit are connected with vibration means for main pipe for supplying water road 3 jointly, and several of vibration means for main pipe for supplying water road 3 go out
The mouth of a river is connected with the lateral group 4 to supply water to different buildings, and the connection in lateral group 4 and vibration means for main pipe for supplying water road 3 is punished
It She You not the more pump assemblys of frequency conversion, the independent unit floor water supply to corresponding work of the more pump assemblys 5 of frequency conversion, variable frequency pump unit and change
Frequently more pump assemblys 5 are made of several variable frequency pumps, and the specific course of work of the two is as follows, and variable frequency pump unit will live first
Water in quarter water storage tank 1 is delivered to water main road, and then the water second-pumping in water main road is to 4 pairs of lateral group
The water of lateral group 4 is transported to the different floors in discrete cell building by the different units building answered, the last more pump assemblys 5 of frequency conversion,
Therefore the present invention uses 5 liang of set variable frequency pumps of variable frequency pump unit and the more pump assemblys of frequency conversion, the different units Lou Keshi of residential quarter
The way of supplying water of existing independent parallel formula, respectively to convey water and maintain hydraulic pressure, to realize the water supply process in different units building
It mutually leaves alone, reduces the variation of water, improve the stability of constant pressure water supply work.
Several pressure sensors 6 for being distributed in different height are equipped in lateral group 4, the pressure sensor 6 is used
In the hydraulic pressure intensity for acquiring different height in each lateral group 4, pressure sensor 6 passes through telecommunication unit 7 and center
Control single chip computer component 8 connects, and pressure sensor 6 is mounted on the input terminal of central control single chip computer component 8.
Wherein it should be strongly noted that being generally provided with standard hydraulic pressure in the water system of residential quarter, standard hydraulic pressure is
The universal general hydraulic pressure of resident's water, what pressure sensor 6 was used to detect resident in different floors uses water hydraulic pressure, and by hydraulic pressure
Monitoring signals are transmitted to when central control single chip computer component 8 carries out signal processing, with the hydraulic pressure of water less or greater than standard water
When pressure, central control single chip computer component 8 controls variable frequency pump unit and the more pump assemblys 5 of frequency conversion work, and regulation water supply pressure is to dynamic
The state of state constant pressure balance.
Central control single chip computer component 8 is used to receive the hydraulic pressure for the unit building different height that the pressure sensor 6 acquires
Signal, variable frequency pump unit and the more pump assemblys 5 of frequency conversion regulate and control unit 9 by constant pressure and are mounted on central control single chip computer component 8
Output end, central control single chip computer component 8 regulate and control unit 9 by constant pressure and adjust variable frequency pump unit and the more pump assemblys 5 of frequency conversion
Working strength.
Central control single chip computer component 8 controls variable frequency pump unit and more 5 courses of work of pump assembly of frequency conversion and can summarize are as follows: when
When pressure sensor 6 real-time monitors resident's hydraulic pressure less than standard hydraulic pressure, variable frequency pump unit and the more pump assemblys 5 of frequency conversion mention simultaneously
The water in residential quarter water storage tank 1 is replenished in time in water main road for high working strength, variable frequency pump unit, the more pump machines of frequency conversion
Water in water main road is provided corresponding hydraulic pressure lower unit building by group 5；When pressure sensor 6 real-time monitors resident
When hydraulic pressure is greater than standard hydraulic pressure, variable frequency pump unit and the more pump assemblys 5 of frequency conversion reduce working strength simultaneously, reduce variable frequency pump machine
Water supply of the group in water main road, while the more pump assemblys 5 of frequency conversion reduce the water supply of unit building, to slow down the liter of hydraulic pressure
Height is until hydraulic pressure reaches stability criterion hydraulic pressure, so as to circulate back and forth operation maintenance resident's hydraulic pressure in metastable dynamic equilibrium.
Based on above-mentioned, constant pressure regulation unit 9 is mainly used for auxiliary centre control single chip computer component 8 and maintains the dynamic of hydraulic pressure flat
Weighing apparatus, it includes the sorting code number unit 901 being grouped to variable frequency pump unit and the more pump assemblys 55 of frequency conversion that constant pressure, which regulates and controls unit 9,.
Variable frequency pump unit and the more pump assemblys 5 of frequency conversion include the more water pump power machines of several groups, the sorting code number unit
901 by multiple water pumps in variable frequency pump unit according to corresponding label in sequence, while sorting code number unit 901 is more by frequency conversion
Multiple water pumps in pump assembly 5 label in sequence.
Wherein sorting code number unit 901, which carries out label mode to variable frequency pump unit, to be exemplified below: by variable frequency pump machine
Multiple water pumps in group are in sequence marked as XX-Dx (x >=1), and wherein XX is specially cell name, and Dx is specially variable frequency pump
The water pump number of unit, the sorting code number unit 901 by multiple water pumps in the more pump assemblys 5 of frequency conversion in sequence marked as
XX-My (x >=1, y >=1), wherein XX is specially cell name, and My is specially the water pump number of the more pump assemblys 5 of frequency conversion, to frequency conversion
The water pump of water pump assembly and the more pump assemblys 5 of frequency conversion, which carries out label, can facilitate the implementation of control process.
Multiple water pumps of variable frequency pump unit are mutually indepedent and are listed in the water outlet of residential quarter water storage tank 1, work as lateral
When hydraulic pressure in group 4 is in standard hydraulic pressure, the starting water pump quantity in variable frequency pump unit is generally far smaller than variable frequency pump machine
The actual pump quantity of group, therefore when needing the in addition remaining water pump of starting variable frequency pump unit, it can start in sequence, mention
The stationarity of high control process, preventing variable frequency pump unit in the control process of starting closing, there is a situation where confusions.
In addition another key factor that the present invention carries out coding label to variable frequency pump unit is, in variable frequency pump unit
Water pump work according to label sequence starting from small to large, and the water pump of variable frequency pump unit is also according to label from small to large
Sequence stops working, when all water pumps of variable frequency pump unit stop or start work and then again by variable frequency pump unit
In sequence starting or stopping of the water pump according to label from small to large, therefore working time for can avoid same water pump too long causes
Damage, while guaranteeing that all water pumps normally come into operation, it prevents water pump from not having to the problems such as getting rusty for a long time, improves whole
Service life.
Multiple water pumps of the more pump assemblys 5 of frequency conversion are mutually indepedent and are listed in the water outlet in vibration means for main pipe for supplying water road 3, the more pump assemblys of frequency conversion
5 starting stopping control mode is identical as variable frequency pump unit, and the water pump in the more pump assemblys 5 of frequency conversion is according to label from small to large
Sequence starting work, and the water pump of the more pump assemblys 5 of frequency conversion also stops working according to label sequence from small to large, when frequency conversion water
All water pump of pump assembly stop or starting work and then again by the water pump of variable frequency pump unit according to label from small to large
Sequence starting or stopping.
Based on above-mentioned, as the characteristic point of present embodiment, constant pressure regulation unit 9 further include adjustment variable frequency pump unit and
The PWM frequency modulation unit 902 of more 5 revolving speeds of pump assembly of frequency conversion, when adjusting hydraulic pressure dynamic equilibrium, PWM frequency modulation unit 902 controls frequency conversion
The acceleration down speeding procedure of water pump assembly and the more pump assemblys 5 of frequency conversion slowly carries out, i.e., PWM frequency modulation unit 902 controls variable frequency pump machine
The water supply pressure of group avoids water flow accumulation production " water hammer ", while avoiding water flow according to incrementally increasing or degression type reduces
Supplement deficiency causes " air water flow ", prevents hydraulic pressure from increasing perhaps reduction suddenly suddenly using gradually reducing or incrementally increase
Mode hydraulic pressure is adjusted to standard hydraulic pressure, improve usage experience.
The above process only illustrates the working principle and control process of central control processing unit thermomechanical components, in the present invention
In, the course of work of specific operational controls control is as follows, is additionally provided with parameter collection module in central control single chip computer component 8
801, data comparison module 802 and water pump assembly node control module 803, the parameter collection module 801 receive pressure and pass
The running parameter of the real-time hydraulic pressure information of sensor 6, the operating parameter information of variable frequency pump unit and the more pump assemblys 5 of frequency conversion is believed
Breath, the hydraulic pressure information of 6 real-time monitoring of pressure sensor is received and processed by central control single chip computer component 8, once real-time hydraulic pressure
More than or less than standard hydraulic pressure, then central control single chip computer component 8 controls variable frequency pump unit and the more pump assemblys 5 of frequency conversion carry out
Frequency conversion control.
Real-time hydraulic pressure information is compared by data comparison module 802 with standard hydraulic pressure information, while data comparison module
802 compare the driving flow of the more pump assemblys 5 of frequency conversion and the driving flow of variable frequency pump unit, the more pump assemblys of frequency conversion
5 constitute control node with the variable frequency pump unit of corresponding subregion, and the water pump assembly node control module 803 is according to comparison result
Control the working strength of the variable frequency pump unit of the more pump assemblys 5 of frequency conversion and corresponding control node.
The operating parameter information of variable frequency pump unit and the more pump assemblys 5 of frequency conversion includes revolving speed, frequency and the driving water of water pump
It measures, central control single chip computer needs to guarantee during regulation, the variable frequency pump unit and the more pump assemblys 5 of frequency conversion
Revolving speed at work can be different, and the water flow total amount that the more pump assemblys 5 of variable frequency pump unit and frequency conversion drive is identical, that is to say, that
The driving water of the more pump assemblys 5 of variable frequency pump unit and frequency conversion is identical, so that the hydraulic pressure of compensation branch pipeline group 4 in time, guarantees
Hydraulic pressure maintains dynamic equilibrium.
Based on each building block of above-mentioned zero water hammer Intelligent constant-voltage water system, as shown in Fig. 2, the present invention also provides one
The regulation methods of kind zero water hammer constant pressure water supply system of more pumps, include the following steps:
Step 100, starting constant pressure regulator control system, started in a manner of frequency conversion drive residential quarter all variable frequency pump units and
The more pump assemblys of frequency conversion, when the pressure sensor acquisition signal in lateral group is standard hydraulic pressure, parameter collection module difference
Under record standard water pressure condition, variable frequency pump unit that standard hydraulic pressure supplies water and the numbers of the more pump assemblys of frequency conversion and right are participated in
The pump rotary speed flow parameter answered.
That is, variable frequency pump unit and the more pump assemblys of frequency conversion are in current starting under standard static pressure constant state
Number combination, revolving speed and water flux density are standard value.
After starting constant pressure regulator control system, when the water pressure condition of partial pressure pipeline circle is standard hydraulic pressure, the variable frequency pump unit
With the more pump assembly decelerating operations of frequency conversion until with water gravitational equilibrium, guarantee that constant pressure regulator control system maintains static water supply balance.
Step 200 plus pump pressurization balance, and for the water in lateral group using increasing, pressure sensor detects branch
Hydraulic pressure in pipeline group is reduced to standard hydraulic pressure hereinafter, the central corresponding variable frequency pump for participating in supplying water of control single chip computer component control
Unit and the more pump assemblys of frequency conversion accelerate work simultaneously, until the pressure sensor in lateral group maintains standard hydraulic pressure, guarantee
The dynamic equilibrium of water supply process.
When the water pump for participating in water supply static balancing accelerates to highest rated speed, the water of the pressure sensor detection
When pressure is also less than standard hydraulic pressure, the water pump of variable frequency pump unit and the more pump assembly not running of frequency conversion in the same node of variable frequency starting,
Water is replenished in time to achieve the purpose that constant pressure, guarantees that constant pressure regulator control system maintains dynamic water supply balance.
In above-mentioned pressure process, corresponding step 100 participates in the variable frequency pump unit to supply water or the more pump machine components of frequency conversion
Do not accelerate work not all, the time of low pressure uphill process can be reduced, improve usage experience, guarantees that hydraulic pressure increases in regulation process,
The time during the increasing of low pressure can fundamentally be reduced.
The acceleration regulation process of variable frequency pump unit changes with the more pump assemblys of frequency conversion, that is to say, that guarantees variable frequency pump machine
The water supply that the more pump assemblys of frequency conversion need is replenished in time in group, while in the in addition water pump of starting not running, also using frequency conversion
Mode starts, and guarantees fundamentally solve full speed running water pump, water outlet variation in water pressure causes greatly very much in hydraulic pressure regulation process
" water hammer " phenomenon, improve and use water stability, while avoiding the water supply of variable frequency pump unit too big, influence other unit buildings
Hydraulic pressure increases, and improves the stability of entire water system.
Step 300 subtracts pump decompression balance, and for the water in lateral group using reducing, pressure sensor detects branch
Hydraulic pressure in pipeline group rises, the variable frequency pump unit and frequency conversion that the corresponding participation of center control single chip computer component control is supplied water
Decelerating operation, reduction water flow guarantee to supply more pump assemblys until the pressure sensor in lateral group maintains standard hydraulic pressure simultaneously
The dynamic equilibrium of water process；
When the water pump run in step 200 decelerates to minimum rated revolving speed, the hydraulic pressure of the pressure sensor detection
Also greater than standard hydraulic pressure when, stop the water pump running in variable frequency pump unit and the more pump assemblys of frequency conversion in same node, drop in time
Low wash water guarantees that constant pressure regulator control system maintains dynamic water supply balance to achieve the purpose that constant pressure.
In above-mentioned pressure reduction, corresponding step 200 participates in the variable frequency pump unit to supply water or the more pump machine components of frequency conversion
Inwhole decelerating operations, can reduce the time of high drops process, improve usage experience, guarantee that hydraulic pressure reduces in regulation process,
The time of high pressure reduced in regulation process can fundamentally be reduced.
The acceleration regulation process of variable frequency pump unit changes with the more pump assemblys of frequency conversion, that is to say, that guarantees variable frequency pump machine
Group and the more pump assemblys of frequency conversion reduce water supply in time, in addition in the water pump for stopping having run, by the way of " first open and first close "
The forward water pump of coding label is closed, the whole service life of variable frequency pump unit and the more pump assemblys of frequency conversion can be improved.
Step 400 maintains dynamic equilibrium, in the way of the converting operation of variable frequency pump unit and the more pump assemblys of frequency conversion, protects
The each pressure sensor held in lateral group is in standard hydraulic pressure.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (10)
1. a kind of zero water hammer Intelligent constant-voltage water system of more pumps, it is characterised in that: including the change being connect with residential quarter water storage tank (1)
Frequency water pump assembly, the output end of the variable frequency pump unit are connected with vibration means for main pipe for supplying water road (3) jointly, the vibration means for main pipe for supplying water road (3)
Several water outlets be connected with the lateral group (4) to supply water to different buildings, the lateral group (4) and supply water
The junction of main pipeline (3) is respectively equipped with the more pump assemblys of frequency conversion (5), and the more pump assemblys of frequency conversion (5) are individually to corresponding work
Unit floor supplies water, and is equipped with several pressure sensors (6) for being distributed in different height in the lateral group (4),
The pressure sensor (6) is connect by telecommunication unit (7) with central control single chip computer component (8), the pressure sensing
Device (6) is mounted on the input terminal of central control single chip computer component (8), and the variable frequency pump unit and the more pump assemblys of frequency conversion (5) are logical
Cross the output end that constant pressure regulation unit (9) is mounted on central control single chip computer component (8).
2. a kind of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 1, it is characterised in that: the pressure passes
Sensor (6) is used to acquire the hydraulic pressure intensity of different height in each lateral group (4), and central control single chip computer component
(8) for receiving the hydraulic signal of the unit building different height of the pressure sensor (6) acquisition, the center control single chip computer
Component (8) adjusts the working strength of variable frequency pump unit and the more pump assemblys of frequency conversion (5) by constant pressure regulation unit (9).
3. a kind of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 2, it is characterised in that: the constant pressure tune
Controlling unit (9) includes the sorting code number unit (901) being grouped to variable frequency pump unit and the more pump assemblys of frequency conversion (5), and
Adjust variable frequency pump unit and the more pump assemblys of frequency conversion (5) revolving speed PWM frequency modulation unit (902), the variable frequency pump unit it is more
A water pump is mutually indepedent and is listed in the water outlet of residential quarter water storage tank (1), and the sorting code number unit (901) is to frequency conversion water
Multiple water pumps in pump assembly sequentially label, multiple water pumps of the more pump assemblys of frequency conversion (5) are mutually indepedent and are listed in water supply master
The water outlet of pipeline (3), and the sorting code number unit (901) also sequentially marks multiple water pumps of the more pump assemblys of frequency conversion (5)
Number.
4. a kind of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 3, it is characterised in that: the PWM tune
The water supply pressure of frequency unit (902) control variable frequency pump unit is according to incrementally increasing, or reduces according to degression type.
5. a kind of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 1, it is characterised in that: the frequency conversion water
Pump assembly and the more pump assemblys of frequency conversion (5) include the more water pump power machines of several groups, the variable frequency pump unit and the more pump machines of frequency conversion
Water pump in group (5) works according to label sequence starting from small to large, and the variable frequency pump unit and the more pump machines of frequency conversion
The water pump of group (5) stops working according to label sequence from small to large simultaneously, when variable frequency pump unit and the more pump assemblys of frequency conversion (5)
In all water pumps stop or start work and then again by the water pump in variable frequency pump unit and the more pump assemblys of frequency conversion (5)
It is again started up or stops according to label sequence from small to large.
6. a kind of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 1, it is characterised in that: the center control
It is additionally provided with parameter collection module, data comparison module and water pump assembly node control module in single-chip microcontroller component (8) processed, it is described
Parameter collection module receives the real-time hydraulic pressure information of pressure sensor (6) and the operating parameter information of the more pump assemblys of frequency conversion (5), and
And real-time hydraulic pressure information is compared by the data comparison module with standard hydraulic pressure information, while the data comparison module will
The driving flow and the driving flow of variable frequency pump unit of the more pump assemblys of frequency conversion (5) compare, the more pump assemblys of frequency conversion (5)
Control node is constituted with the variable frequency pump unit of corresponding subregion, the water pump assembly node control module is controlled according to comparison result
The working strength of the more pump assemblys of frequency conversion (5) and the variable frequency pump unit of corresponding control node.
7. a kind of regulation method of zero water hammer Intelligent constant-voltage water system of more pumps, which is characterized in that specifically comprise the following steps:
Step 100, starting constant pressure regulator control system, start all variable frequency pump units and the frequency conversion of residential quarter in a manner of frequency conversion drive
More pump assemblys, when the pressure sensor acquisition signal in lateral group is standard hydraulic pressure, parameter collection module records respectively
Under standard water pressure condition, variable frequency pump unit that standard hydraulic pressure supplies water and the numbers of the more pump assemblys of frequency conversion and corresponding are participated in
Pump rotary speed flow parameter；
Step 200 plus pump pressurization balance, and for the water in lateral group using increasing, pressure sensor detects lateral
Hydraulic pressure in group is reduced to standard hydraulic pressure hereinafter, the central corresponding variable frequency pump unit for participating in supplying water of control single chip computer component control
Accelerate work simultaneously with the more pump assemblys of frequency conversion, until the pressure sensor in lateral group maintains standard hydraulic pressure, guarantees to supply water
The dynamic equilibrium of process；
Step 300 subtracts pump decompression balance, and for the water in lateral group using reducing, pressure sensor detects lateral
Hydraulic pressure in group rises, and the center control single chip computer component control corresponds to the variable frequency pump unit for participating in supplying water and frequency conversion pumps more
Decelerating operation, reduction water flow guarantee to supply water unit until the pressure sensor in lateral group maintains standard hydraulic pressure simultaneously
The dynamic equilibrium of journey；
Step 400 maintains dynamic equilibrium, in the way of the converting operation of variable frequency pump unit and the more pump assemblys of frequency conversion, keeps dividing
Each pressure sensor in branch pipe(tube) group is in standard hydraulic pressure.
8. a kind of regulation method of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 7, it is characterised in that:
In step 100, after starting constant pressure regulator control system, when the water pressure condition of partial pressure pipeline circle is standard hydraulic pressure, the variable frequency pump
Unit and the more pump assembly decelerating operations of frequency conversion guarantee that constant pressure regulator control system maintains static state for level until with water gravitational equilibrium
Weighing apparatus.
9. a kind of regulation method of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 7, it is characterised in that:
In step 200, when the water pump for participating in water supply static balancing accelerates to highest rated speed, the pressure sensor detection
Hydraulic pressure when being also less than standard hydraulic pressure, the water of variable frequency pump unit and the more pump assembly not running of frequency conversion in the same node of variable frequency starting
Water is replenished in time to achieve the purpose that constant pressure in pump, guarantees that constant pressure regulator control system maintains dynamic water supply balance；
In step 300, when the water pump run in step 200 decelerates to minimum rated revolving speed, the pressure sensor inspection
When the hydraulic pressure of survey is also greater than standard hydraulic pressure, stop the water running in variable frequency pump unit and the more pump assemblys of frequency conversion in same node
Pump reduces water in time to achieve the purpose that constant pressure, guarantees that constant pressure regulator control system maintains dynamic water supply balance.
10. a kind of regulation method of zero water hammer Intelligent constant-voltage water system of more pumps according to claim 7, feature exist
In: the revolving speed of the variable frequency pump unit and the more pump assemblys of frequency conversion at work can be different, and variable frequency pump unit and frequency conversion are more
The water flow total amount of pump assembly driving is identical.
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| CN201910483327.1A CN110185084A (en) | 2019-06-04 | 2019-06-04 | A kind of zero water hammer Intelligent constant-voltage water system of more pumps and its regulation method |
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| CN113780972A (en) * | 2021-08-04 | 2021-12-10 | 广州云硕科技发展有限公司 | Integrated management method and system for intelligent park |
| CN114810568A (en) * | 2022-04-11 | 2022-07-29 | 安徽卧龙泵阀股份有限公司 | System and method for controlling running distance of delivery pump |
| CN116591265A (en) * | 2023-06-07 | 2023-08-15 | 无锡申海供水设备制造有限公司 | Intelligent control method and system for non-negative pressure secondary water supply equipment |
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Effective date of registration: 20200825 Address after: No.15, Louxia industrial concentration zone, Lulin Town, Jintan District, Changzhou City, Jiangsu Province Applicant after: Changzhou Granville Intelligent Control Technology Co., Ltd Address before: 317500 Room 1103, 7 Building, Jinshuiyuan, Zeguo Town, Wenling City, Taizhou City, Zhejiang Province Applicant before: Zhong Lingxian |
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Application publication date: 20190830 |