CN207966223U - A kind of water supply network comprehensive experimental teaching platform - Google Patents
A kind of water supply network comprehensive experimental teaching platform Download PDFInfo
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- CN207966223U CN207966223U CN201721247707.8U CN201721247707U CN207966223U CN 207966223 U CN207966223 U CN 207966223U CN 201721247707 U CN201721247707 U CN 201721247707U CN 207966223 U CN207966223 U CN 207966223U
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Abstract
The utility model provides a kind of water supply network comprehensive experimental teaching platform, including three-dimensional pipe network system, on-line data acquisition and stocking system, monitoring and controlling and management operating system.Three-dimensional pipe network system includes the bicyclic pipe network of feed pipe composition, and the junction of feed pipe is simulation domestic water node, and the lower water box of simulation water source node and the high water tank of simulation water tap node are respectively connected to bicyclic pipe network.On-line data acquisition system and stocking system, including electromagnetic flowmeter and pressure sensor in feed pipe are set, further include PLC and computer.Detection control and management operating system, including controller switching equipment, PLC, touch screen man-machine control system and solenoid valve and water pump, solenoid valve are arranged on feed pipe, and water pump is arranged between lower water box and bicyclic pipe network system.The utility model operation is simple, easy to operate, can carry out water supply network adjustment verification test, characteristic curve of pump experiment and the experiment of pump speed control operating condition.
Description
Technical field
The utility model is related to a kind of water supply network comprehensive experimental teaching platforms, particularly, for be used for discharge hydroscience with
The profession such as engineering《Water supply network system》、《Pump and pumping plant》And《City Hydraulic Projects instrument and control》The relevant teaching of equal courses
The platform of experiment.
Background technology
With the quickening of urbanization process, the integrity of urban public infrastructure construction is particularly important.Municipal administration is given
Important component of the water drainage pipeline as basic Facilities Construction, also can not be ignored certainly.In the religion of colleges and universities' water supply-drainage discipline
In, core content of the city planting ductwork as academic program has had been provided with perfect theory knowledge system at present.Water supply network
Design, hydraulic pipeline calculate the emphasis that the contents such as (loop approach) are all student's study, since abstract concept is difficult on teaching material
To understand, and water supply network pipeline is longer, and cyclization is complicated, takes up a large area, can not build model etc., most of school indoors
All lack the relevant Experimental Teaching Tache of water supply network, increase the difficulty of study, also becomes the difficult point of student's study.
There are also water supply network simulation systems for the prior art, but can only carry out one-side simulation, cannot meet a variety of
The simulated experiment of form；Some simulation system local losses and linear loss differ too big with practical, with not being inconsistent actually；Some are given
Grid simulation system is not recycled the water of node outflow, causes to waste；Some simulation systems do not account for two
Secondary adjusting；Some cyclization are excessively complicated, and floor space is bigger, cumbersome for installation, and are not suitable for the study of beginner and probe into.
In view of the above-mentioned problems, utility model people devises the pipe network system of a set of solid, to reduce floor space；Design electricity
Magnet valve, variable frequency pump, to simulate different operating modes；Increase automatic control equipment, to record, store data；And making analogue system is programmed, it can
It is mutually authenticated with measured data, implementation model parameter optimization and on-line monitoring system precision optimizing etc..Set of system can be same in this way
The related teaching experiment of the courses such as Shi Kaizhan water supply networks system, water pump and pump works, city Hydraulic Projects instrument and control, reinforces
Understanding of the student to relevant knowledge, improves the ability of practice of student.
Utility model content
The purpose of the utility model design is to provide a kind of Comprehensive Experiment of water supply pipe network, water pump and instrument and control
Teaching platform simulates actual municipal water supply pipe network by two basic rings of solid, using solenoid valve, variable frequency pump simulation life
The operating mode of water use variation living is simulated to acquire, store data and programming simulation using control system, student is made to deepen to pipe network system
System operation calculate understanding, while can also allow student carry out pump operating condition experiment and instrument and control related experiment.
To realize the above-mentioned technical purpose, the utility model provides a kind of water supply network comprehensive experimental teaching platform, including vertical
Body pipe network system, on-line data acquisition and stocking system, monitoring and controlling and management operating system.
The solid pipe network system, includes the bicyclic pipe network system that the feed pipe connected by pipe fitting by more forms, bicyclic
Two of pipe network system or the junction of feed pipe are the user node for simulating domestic water, and three-dimensional pipe network system further includes mould
The high water tank of the lower water box and simulation water tap node of quasi- water source node, lower water box and high water tank are respectively connected to bicyclic pipe
Net system.
The on-line data acquisition system and stocking system, including the electromagnetic flowmeter that is arranged on feed pipe or node
With pressure sensor, be arranged in switch board for data acquire and store PLC and computer, the PLC respectively with electricity
Magnetic flowmeter, pressure sensor and computer are connected by signal wire.
The detection control and management operating system, including controller switching equipment, PLC, touch screen man-machine control system and electromagnetism
Valve and water pump, the PLC and touch screen man-machine control system are arranged in switch board, and the solenoid valve is arranged in three-dimensional pipe network system
On the feed pipe of system, the water pump is arranged between lower water box and bicyclic pipe network system.
The water pump is the variable frequency pump with frequency-converting control device.
A kind of grid comprehensive experimental teaching platform, further, in the solid pipe network system, two or three are given
It is attached by pipe fitting between water pipe, forms two basic rings by a shared feed pipe connection, feed pipe junction
For user node, lower water box and high water tank are respectively connected to two basic rings by a feed pipe respectively.
A kind of grid comprehensive experimental teaching platform is further provided with shut-off valve, the node on the feed pipe
Other section installs articulation, and is equipped with hand-operated valve.
A kind of water supply network comprehensive experimental teaching platform water supply network adjustment checking test method, includes the following steps：
Step 1 opens switch board general supply, opens touch screen man-machine control system power supply；
Step 2, adjust user node electromagnetic valve switch amount be 0%~100%, setting starting mode of pump frequency be 10~
50HZ；
Step 3 opens water pump, observes each feed pipe flow mobility status；
Step 4 waits for system stable operation 5min or more, records the flow and pressure value of each feed pipe；
Step 5, changes the electromagnetic valve switch amount and water pump operation frequency of each user node, record exit of pump flow and
Pressure and each pipeline flow and pressure value；
Step 6 closes the shut-off valve of a certain feed pipe of three-dimensional pipe network system, observes the flow meter pressure number of each feed pipe
Value variation, and numerical value is recorded, simulated accident operating mode loop approach；
Step 7 switches off the pump, and opens the flowing water Valve of high water tank, observes high-level tank water situation, and record is respectively given
Water pipe flow meter pressure numerical value, simulation water tower adjust operating mode loop approach；
Step 8, closing control cabinet power supply carry out data preparation and write laboratory report.
Pump capacity is carried out using water supply network comprehensive experimental teaching platform --- pressure characteristic is tested, including following
Step：
Step 1 opens power control cabinet general supply, opens touch screen man-machine control system power supply；
Step 2, the electromagnetic valve switch amount for adjusting simulation domestic water node are 0%~100%, setting starting mode of pump frequency
Rate is 10~50HZ；
Step 3 opens water pump, observes each feed pipe flow mobility status；
Step 4 waits for system stable operation 5min or more, records one group of exit of pump flow and pressure value；
Step 5 changes the switching value of the solenoid valve of each user node, records one group of exit of pump flow and pressure data,
The switching value for continuing to change the solenoid valve of each user node, re-records one group of exit of pump flow and pressure data, so recycles,
At least five groups of exit of pump flows and pressure data are recorded in total；
Step 6, the exit of pump flow and pressure data obtained using step 5 draw centrifugal pump stream on graph paper
Amount --- pressure characteristic；
Step 7 changes starting mode of pump frequency, repeats step 4 to step 6, the stream of water pump under different frequency can be obtained
Amount --- pressure characteristic；
Step 8, experiment terminate, closing control cabinet power supply.
Technical solution more than the utility model use, achieves following technique effect：
1, the utility model controls to adjust the solenoid valve on each user node by PLC system, thus it is possible to vary simulation life
The size for applying flexibly the water consumption of water node, the flow that each pipeline section is re-started according to the change of water just distributes, on ring
The flow and pressure of each pipeline section can also change therewith, can show after data collection, processing, analysis, in this way may be used on a display screen
To simulate pipe network assignment of traffic and the pressure changing under different flow.
2, the utility model is equipped with hand-operated valve on each pipeline section of three-dimensional pipe network system, can opening by hand-operated valve
It closes, simulates the failure pipeline section of city planting ductwork, carry out failure checking.
3, the utility model uses variable frequency pump, and when flow difference, the operating mode of water pump is also different, passes through control and regulation
Valve changes the total flow of pipe network, to record the variation of water pump practical lift and power, in addition to that can do water supply network system
Other than teaching, the characteristic curve research experiment of water pump can also be done.
4, the utility model is provided with solenoid valve, electromagnetic flowmeter, pressure sensor and switch board and operating system etc.,
In city Hydraulic Projects instrument with the teaching of control course, it can also be familiar with water supply and sewerage pipeline with classmates' visiting and learning and supervise online
Examining system.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the principles of the present invention.
Fig. 2 is the computation model figure of the three-dimensional pipe network system of the utility model.
Fig. 3 is the structural schematic diagram of the three-dimensional pipe network system of the utility model.
Figure includes：1- feed pipes, 2- lower water boxes, 3- water pumps, 4- high water tanks, 5- electromagnetic flowmeters, 6- pressure pass
Sensor, 7- solenoid valves, 8- shut-off valves.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings, to this
Utility model carries out apparent, complete description.
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of water supply network comprehensive experimental teaching platform, the feed pipe
Net Platform of Experimental Teaching includes three-dimensional pipe network system, on-line data acquisition and stocking system, monitoring and controlling and management operating system.
The three-dimensional pipe network system includes lower water box 2, water pump 3, high water tank 4, feed pipe 1, pipe fitting.
Specifically, three-dimensional pipe network system includes more feed pipes 1, two or more feed pipes 1 by elbow, threeway,
The pipe fittings such as reducing joint are attached, and form 9 pipeline sections, and 8 nodes constitute the bicyclic pipe network system of 2 basic rings, form envelope
The reticular structure closed.
As shown in Fig. 2, pipeline section b, pipeline section c, pipeline section g and pipeline section e join end to end, a ring is formed；Pipeline section d, pipeline section h, pipe
Section g and pipe pipe f joins end to end, and forms a ring, and two rings share pipeline section g, constitute 2 basic rings.
Lower water box 2 is located at the lower part of three-dimensional pipe network system, is connected with water pump 3 by water-supply-pipe, is stored in lower water box 2
Water source pressurize through water pump 3, be transported to pipeline section a, then access bicyclic pipe network system in the junction of pipeline section b and pipeline section e.
High water tank 4 is located at the top of three-dimensional pipe network system, double in the access of the junction of pipeline section f and pipeline section h by pipeline section i
Ring pipe network system.
By being as above arranged, three-dimensional pipe network system has set 8 nodes altogether：Respectively simulation water source node A, corresponding low level water
Case 2, to for water-supply source；Simulation water tap node H, corresponding high water tank 4, to carry out Secondary Control.Two pipes on basic ring
Domestic water node is respectively simulated in the junction of section or three pipeline sections, is node B to node G.
As a preferred option as one kind, all nodes are both provided with water outlet, and water outlet, which passes through, connects lower water box
2, when experiment, all water outlets all gravity flows enter lower water box 2, realize the recycling of water, save experimental water.
Preferably, the volume of lower water box 2 is 2200*1000*500mm, and the volume of high water tank 4 is 1200*1000*
500mm.High water tank 4 is provided with overflow pipe, and overflow pipe connects lower water box 2, and the water gravity flow in overflow pipe enters lower water box
2, it is same to realize recycling for water, save experimental water.
In the present invention, the caliber of feed pipe 1 has De63, De40, De32, De25 and De20 respectively.Each caliber
Feed pipe 1 uses De63, pipeline section b to use De32, pipeline section c that De25, pipeline section d is used to adopt using position referring to Fig. 2 and Fig. 3, pipeline section a
Use De40, pipeline section f that De32, pipeline section g is used to use De20, pipeline section h that De20, pipeline section i is used to use De25 with De20, pipeline section e.
Pipeline section a to pipeline section i is respectively provided with shut-off valve 8 on each pipeline section, amounts to 9, and section installation is lived by each user node
Connector and hand-operated valve, by switch manual valve, convenient for safeguarding, operating mode being adjusted flexibly.
As a preferred solution, the feed pipe 1, tubing is preferably transparent organic glass pipe, in experimentation
In can intuitively observe streamflow regime, so that student is more intuitively understood, deepen the impression.
Since the pipeline of three-dimensional pipe network system is longer, floor space is larger, to meet practical consideration floor space as possible, this
The water supply network system of utility model uses stereo structure, the pipeline section that feed pipe 1 is formed to curve around in the horizontal and vertical directions,
Space, total floor space can be made full use of to be less than 10 ㎡, be very suitable for school instruction use.
On-line data acquisition and stocking system include electromagnetic flowmeter 5, pressure sensor 6, PLC and computer, PLC and electromagnetism
Flowmeter 5 and pressure sensor 6 are connected by signal wire, and are connect with computer.
Data collecting system includes the electromagnetic flowmeter 5 respectively installed on pipeline section a, pipeline section e, pipeline section f and each user
The electromagnetic flowmeter 5 installed on node amounts to 9.It further include the pressure sensing being arranged on the outlet pipe of each user node
Device 6 and water pump 3 are discharged the pressure sensor 6 of pipeline section a, amount to 7.
Data-storage system includes PLC and computer, PLC signal wires and electromagnetic flowmeter 5, pressure sensor 6 and computer
Connection, to automatically record and store the situation of change of water consumption and node flow and pressure.
Data collecting system is to acquire the related data of flow and pressure, the processing by data processing system and mathematics
The analysis of model clear on the display screen of the touch screen man-machine system in switch board may finally intuitively see dividing for flow
Situation of change with situation and pressure.By recording pipeline flow and pressure, the continuous flow equation of check flow and ring energy side
Journey.
Monitoring and controlling and management operating system include：Controller switching equipment and PLC, touch screen man-machine control system and execution are set
Standby, execution equipment is solenoid valve 7, water pump 3.
PLC and touch screen man-machine control system have the function of data conversion, storage, data processing and simulation model etc., this
System is arranged in switch board.
Equipment is executed in three-dimensional pipe network system corresponding position, such as the solenoid valve 7 and water pump 3 in Fig. 2 and Fig. 3.Preferably, institute
It is variable frequency pump to state water pump 3, is connected by signal wire therebetween.Specifically, in node B to node G, each user node goes out
Water pipe is respectively provided with there are one solenoid valve 7, amounts to 6, solenoid valve 7 is set on pipeline section i, totally 1.
In the process of running, electromagnetic flowmeter 5 and 6 gathered data of pressure sensor such as flow, pressure in data collecting system
Sensor signal is converted to displayable data by power etc., monitoring system；By touch screen man-machine control system control water pump 3,
The unlatching of solenoid valve 7；By 7 aperture of electromagnetic valve for adjusting, 3 frequency regulation experiment operating parameter of water pump, reach the mesh of management operating
's.
Further, 3 power of the water pump is 2.2kW, metered flow 20m3/ h, lift 22m.When flow difference
When, the operating mode of water pump 3 is also different.
By the outlet pipe of the aperture and high water tank 4 of the solenoid valve 7 of all user nodes in controlling and regulating system, that is, manage
The aperture of the solenoid valve 7 of section i changes the total flow of three-dimensional pipe network, to record the variation of 3 practical lift and power of water pump, in addition to
Other than the teaching that water supply network system can be done, the characteristic curve research experiment of water pump 3 can also be done.
A kind of water supply network comprehensive experimental teaching platform water supply network adjustment checking test method of the utility model is as follows：
1, Preparatory work of experiment.It checks and ensures that 2 the inside water of lower water box is sufficient；Review and validate the institute of three-dimensional pipe network system
Some shut-off valve 8 is fully open.
2, power supply is opened.Power control cabinet general supply is opened, touch screen man-machine control system power supply is opened.
3, into control flow operation interface, the aperture of each user node solenoid valve 7 is set, is selected between 0%~100%
It selects, 3 initiation culture of water pump is set, is selected between 10~50HZ.
4, water pump 3 is opened, 1 flow mobility status of each feed pipe is observed.
5, it waits for system stable operation 5min or more, records 1 flow of each feed pipe and pressure value.
6, change each 7 switching value of user node solenoid valve and 3 running frequency of water pump, record 3 rate of discharge of water pump and pressure,
And each 1 flow of feed pipe and pressure value.
7, the shut-off valve 8 of a certain feed pipe of three-dimensional pipe network system 1 is closed, the flow meter pressure numerical value for observing each pipeline section becomes
Change, and records numerical value, simulated accident operating mode loop approach.
8, it switches off the pump 3, opens the flowing water Valve of high water tank 4, observe 4 water supply condition of high water tank, record each pipeline section
Flow meter pressure numerical value, simulation water tower adjust operating mode loop approach.
9, system power supply is closed after testing, 4 water storage of high water tank is emptied.
10, data preparation and laboratory report is write
A kind of 3 flow of water supply network comprehensive experimental teaching platform water pump of the utility model --- pressure characteristic is tested
Method is as follows：
1, Preparatory work of experiment.It checks and ensures that 2 the inside water of lower water box is sufficient；Review and validate the institute of three-dimensional pipe network system
Some shut-off valve 8 is fully open.
2, power supply is opened.Power control cabinet general supply is opened, touch screen man-machine control system power supply is opened.
3, into control flow operation interface, 7 switching value of solenoid valve of each user node is set, is selected between 0%~100%
It selects, 3 initiation culture of water pump is set, is selected between 10~50HZ.
4, water pump 3 is opened, 1 flow mobility status of each feed pipe is observed.
5, it waits for system stable operation 5min or more, records one group of 3 rate of discharge of water pump and pressure value.
6, change the switching value of each user node solenoid valve 7, record one group of 3 rate of discharge of water pump and pressure data；Continue
Change each 7 switching value of user node solenoid valve, re-records one group of 3 rate of discharge of water pump and pressure data；How to recycle, Zong Gongji
Record at least five groups of 3 rates of discharge of water pump and pressure data.
7, Centrifugal Pump is drawn on graph paper using 3 rate of discharge of above-mentioned water pump and pressure data --- pressure characteristic
Curve.
8, the step of changing 3 initiation culture of water pump, repeating 4~7, can be obtained the flow of centrifugal pump under different frequency --- pressure
Force characteristic curve；At least paint the flow of the centrifugal pump of three different frequencies --- pressure characteristic.
9, system power supply is closed after testing, 4 water storage of high water tank is emptied.
10, data preparation and laboratory report is write.
Ideal case according to the utility model is enlightenment, and through the above description, relevant staff can be
Without departing from carrying out various changes and amendments in the range of the utility model technological thought.The utility model and range of attributes
It is not limited to the contents of the specification, it is necessary to which its technical scope is determined according to right.
Claims (3)
1. a kind of water supply network comprehensive experimental teaching platform, it is characterised in that：Including three-dimensional pipe network system, on-line data acquisition and
Stocking system, monitoring and controlling and management operating system；
The solid pipe network system, includes the bicyclic pipe network system that the feed pipe connected by pipe fitting by more forms, bicyclic pipe network
Two of system or the junction of feed pipe are the user node for simulating domestic water, and three-dimensional pipe network system further includes simulation water
The high water tank of the lower water box and simulation water tap node of source node, lower water box and high water tank are respectively connected to bicyclic pipe network system
System；
Three-dimensional pipe network system includes more feed pipes, two or more feed pipes by elbow, threeway, reducing joint pipe fitting into
Row connection, forms 9 pipeline sections, and 8 nodes constitute the bicyclic pipe network system of 2 basic rings, form closed reticular structure, institute
There is node to be both provided with water outlet, water outlet is provided with overflow pipe by connecting lower water box, high water tank, and overflow pipe connection is low
Position water tank, the water gravity flow in overflow pipe enter lower water box；
The on-line data acquisition system and stocking system, including the electromagnetic flowmeter and pressure that are arranged on feed pipe or node
Force snesor, be arranged in switch board for data acquire and store PLC and computer, the PLC respectively with electromagnetic current
Gauge, pressure sensor and computer are connected by signal wire；
The monitoring and controlling and management operating system, including controller switching equipment, PLC, touch screen man-machine control system and solenoid valve and
Water pump, the PLC and touch screen man-machine control system are arranged in switch board, and the solenoid valve is arranged in three-dimensional pipe network system
On feed pipe, the water pump is arranged between lower water box and bicyclic pipe network system；
The water pump is the variable frequency pump with frequency-converting control device.
2. water supply network comprehensive experimental teaching platform according to claim 1, it is characterised in that：The solid pipe network system
In, it is attached by pipe fitting between two or three feed pipes, forms two bases by a shared feed pipe connection
This ring, feed pipe junction are user node, and lower water box and high water tank are respectively connected to two by a feed pipe respectively
Basic ring.
3. water supply network comprehensive experimental teaching platform according to claim 1 or 2, it is characterised in that：On the feed pipe
It is provided with shut-off valve, section installs articulation by the node, and is equipped with hand-operated valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721247707.8U CN207966223U (en) | 2017-09-21 | 2017-09-21 | A kind of water supply network comprehensive experimental teaching platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721247707.8U CN207966223U (en) | 2017-09-21 | 2017-09-21 | A kind of water supply network comprehensive experimental teaching platform |
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| CN207966223U true CN207966223U (en) | 2018-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424470A (en) * | 2017-09-21 | 2017-12-01 | 桂林理工大学 | A kind of water supply network analogue simulation system |
| CN109294684A (en) * | 2018-11-08 | 2019-02-01 | 才燕 | A kind of environment-friendly biomass fuel pretreatment processing unit (plant) |
| CN109490002A (en) * | 2018-12-20 | 2019-03-19 | 南京管科智能科技有限公司 | A kind of pipe robot experimental provision |
-
2017
- 2017-09-21 CN CN201721247707.8U patent/CN207966223U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424470A (en) * | 2017-09-21 | 2017-12-01 | 桂林理工大学 | A kind of water supply network analogue simulation system |
| CN109294684A (en) * | 2018-11-08 | 2019-02-01 | 才燕 | A kind of environment-friendly biomass fuel pretreatment processing unit (plant) |
| CN109490002A (en) * | 2018-12-20 | 2019-03-19 | 南京管科智能科技有限公司 | A kind of pipe robot experimental provision |
| CN109490002B (en) * | 2018-12-20 | 2024-01-26 | 南京管科智能科技有限公司 | Pipeline robot experimental device |
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Effective date of registration: 20230120 Address after: 310000 room 1210, building 1, Chuangzhi building, East Qiantang new area, Hangzhou, Zhejiang Patentee after: Hangzhou Array Technology Co.,Ltd. Address before: 541004 the Guangxi Zhuang Autonomous Region Guilin Construction Road No. 12 Patentee before: GUILIN University OF TECHNOLOGY |
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