CN105241528B - A kind of flow sensor detection platform and its control method - Google Patents
A kind of flow sensor detection platform and its control method Download PDFInfo
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- CN105241528B CN105241528B CN201510612010.5A CN201510612010A CN105241528B CN 105241528 B CN105241528 B CN 105241528B CN 201510612010 A CN201510612010 A CN 201510612010A CN 105241528 B CN105241528 B CN 105241528B
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Abstract
The present invention provides a kind of flow sensor detection platform and its control method, detection platform includes: fluid circulating system, flow control system and detecting and analysing system；Fluid circulating system includes water tank, water pump, motor and hydraulic pipeline, and hydraulic pipeline includes water main, return main and developmental tube row；Developmental tube row is equipped with ultrasonic flowmeter, and is provided with the connecting hole and flange-interface of flow sensor to be measured；Flow control system includes local control unit and remote control unit, and remote control unit and local control unit communicate, for controlling motor constant pressure for stream；Detecting and analysing system includes multi-channel signal acquiring instrument and signal analyzer, multi-channel signal acquiring instrument acquires developmental tube discharge capacity signal by ultrasonic flowmeter, signal analyzer compares flow sensor output signal to be measured and developmental tube discharge capacity signal, and output test result.Operation of the present invention is simple, easy to control, at low cost, and measurement is accurate.
Description
Technical field
The present invention relates to a kind of detection device, especially a kind of flow sensor inspection tested for flow sensor
Survey platform and its control method.
Background technique
Flow sensor is generally used for the flow of medium fluid in measurement industrial pipeline, nowadays for the basic of measuring flow
On all use sensor.Sensor experiences fluid flow and is converted into usable output signal, and operation can be made more by loading onto sensor
It is simple and convenient.In many economic fields, the accurate measurement of flow has become very important.
Due to factors such as detected fluid property, velocity flow profile situation, pipeline infield and accuracy of measurement requirements
Difference, applicable flow sensor type are also not quite similar.Can different sensors meet production needs before being put into use,
Whether the performance with the increase of active time, effect of the sensor constantly by many factors such as erosion, fatigues, sensor has
Declined, these are all related to the safety in production and economic benefit of enterprise.By taking Hydropower Unit as an example, technical water supply system includes fortune
The cooling of row equipment, the effect of the working seal of the hydraulic turbine and lubrication, flow sensor is for measuring, monitoring having for water system
Equipment is closed, guarantees the normal operation of system；In terms of for the state evaluation of unit performance, China is mostly used according to machine group parts
Key point vibration and the operation stability state of Hydropower Unit is characterized the case where pressure pulsation, flow sensor it is technical
It can just be particularly important.
It is therefore desirable to be related to a kind of flow sensor detection platform that can easily test flow sensor performance and its
Control method.
Summary of the invention
Technical problem solved by the invention is in view of the deficiencies of the prior art, to provide a kind of flow sensor detection
Platform and its control method, easy to operate, easy to control, at low cost, measurement is accurate.
To achieve the above object, technical solution provided by the invention are as follows:
A kind of flow sensor detection platform, including fluid circulating system 3, flow control system 2 and detecting and analysing system
4；
The fluid circulating system 3 includes water tank 1, water pump 10, motor 28 and hydraulic pipeline 35；The hydraulic pipeline 35
Including water main 7, return main 17 and developmental tube row 29；The feed water inlet of the water tank 1, water main 7, water pump 10, test
The water return outlet of pipe row 29, return main 17 and water tank 1 are sequentially connected to form closed circuit；The motor 28 is for driving water pump
10；
Pressure sensor is equipped on the water main 7 and developmental tube row 29；
Water-level gauge 23 is equipped in the water tank 1；
The developmental tube row 29 is equipped with ultrasonic flowmeter 24, and is provided with the connecting hole and method of flow sensor 42 to be measured
Blue interface 44；When detection, flow sensor 42 to be measured is by connecting hole or the setting of flange-interface 44 on developmental tube row 29；
The flow control system 2 includes local control unit 5 and remote control unit 6；The remote control unit 6 with
5 communication connection of local control unit；The local control unit 5 includes PLC control cabinet 36 and frequency-conversion control cabinet 30；The PLC
30 communication connection of control cabinet 36 and frequency-conversion control cabinet；Pressure sensor on the water main 7 and developmental tube row 29, Yi Jishui
The signal output end of water-level gauge 23 in case 1 is connected with the signal input part of PLC control cabinet 36；The frequency-conversion control cabinet 30
Output end is connected with the control terminal of motor 28；The PLC control cabinet 36 acquires the pressure letter of water main 7 and developmental tube row 29
Number, the liquid level signal of water tank 1, and the pressure signal of water main 7 and developmental tube row 29 are sent to frequency-conversion control cabinet 30, frequency conversion
Control cabinet 30 carries out PID arithmetic according to pressure signal, adjusts the revolving speed of motor 28, control 28 constant pressure of motor is for stream；
Flow control system 2 according to the present invention have now, the various controls mode such as long-range, two places." now " refers to electricity
The start and stop of motivation and water pump can only be operated on local control unit 5；" long-range " refers to that the start and stop of platform can only controlled remotely
It is operated on unit 6 processed；" two places " refer to that the start and stop of platform on local control unit 5 and remote control unit 6 while can carry out
Operation.
The detecting and analysing system 4 includes multi-channel signal acquiring instrument 26 and signal analyzer 27；The ultrasonic flow
The signal output end of meter 24 and flow sensor to be measured 42 is connected with the signal input part of multi-channel signal acquiring instrument 26；It is described
The signal output end of multi-channel signal acquiring instrument 26 is connected with the signal input part of signal analyzer 27；The signal analyzer 27
The signal magnitude exported for comparing ultrasonic flowmeter 24 and flow sensor to be measured 42, and export comparison result；It is described more
Channel signal Acquisition Instrument 26, which is used to acquire developmental tube by ultrasonic flowmeter 24, arranges 29 flow signals, the signal analyzer 27
Also have the function of to automatically generate examining report.
Preferably, the water tank 1 include sink 33, sink cover board 22, the rinforcement bar 37 for being located at 33 surrounding of sink, water tank into
Water pipe 31, tank drains pipe 25 and steady flow baffle 34；
The sink cover board 22 covers the top in sink 33, the cover board that can be dismantled using sliding open type；
The steady flow baffle 34 is inserted vertically into sink, and sink is divided into two groove bodies；Side groove body is equipped with feed water inlet, is used for
The entrance of water main 7 is connected, other side groove body is equipped with water return outlet, for connecting the outlet of return main 17；
Steady flow baffle lower end is provided with limbers 38.
Preferably, valve body 21 is installed in the position on the water main 7 between water tank 1 and water pump 10；
The return main 17 is closing on installation valve body 20 at water tank 1.
Preferably, the developmental tube row 29 includes horizontal tube row 11 and vertical pipe row 12；
The horizontal tube row 11 includes horizontal tube row water supplying pipe 8, horizontal tube flows back to water pipe 13 and multiple horizontal tubes arrange branch pipe
15；The entrance of horizontal tube row's water supplying pipe 8 is connected with the outlet of water main 7；The entrance of multiple horizontal tubes row's branch pipes 15 is and water
The outlet of flat pipe row water supplying pipe 8 is connected；The outlet of multiple horizontal tube row branch pipes 15 flows back to the entrance phase of water pipe 13 with horizontal tube
Even；The outlet that horizontal tube flows back to water pipe 13 is connected with the entrance of return main 17；
The vertical pipe row 12 includes vertical pipe row water supplying pipe 9, vertical pipe flows back to water pipe 14 and multiple vertical pipes arrange branch pipe
16；The outlet that the entrance of vertical pipe row's water supplying pipe 9 is connected with water main 7 is connected；The entrance of multiple vertical pipe row branch pipes 16 is equal
It is connected with the outlet of vertical pipe row's water supplying pipe 9；The outlet of multiple vertical pipe row branch pipes 16 flows back to entering for water pipe 14 with vertical pipe
Mouth is connected；The outlet that vertical pipe flows back to water pipe 14 is connected with the entrance of return main 17；
Valve body 18 is mounted on horizontal tube row's water supplying pipe 8 and vertical pipe row's water supplying pipe 9；
It is equipped with ultrasonic flowmeter 24 on the multiple horizontal tube row's branch pipe 15 and multiple vertical pipes row's branch pipe 16, and is opened
Need the connecting hole and flange-interface 44 of flow measurement quantity sensor 42；When detection, multiple flow sensors to be measured 42 are according to it in work
The actual installation direction of journey (horizontal/vertical) arranges branch pipe 15 in multiple horizontal tubes by connecting hole or the setting of flange-interface 44 respectively
Or on multiple vertical pipe row branch pipes 16.
Preferably, horizontal tube row's branch pipe 15 is arranged water supplying pipe 8 with horizontal tube by bellows and is connect；The horizontal tube row
Branch pipe 15 include horizontal segment andThe end of the end of shape bending structure obliquely, the horizontal tube row branch pipe 15 usesThe shape horizontal tube of bending structure connection obliquely flows back to water pipe 13；The end of the multiple horizontal tube row branch pipe 15 and horizontal tube
It flows back between water pipe 13 and is mounted on valve body 19；
It is equipped with ultrasonic flowmeter 24 on the horizontal segment of the multiple horizontal tube row branch pipe 15, and is provided with and is passed to measurement of discharge
The connecting hole or flange-interface 44 of sensor 42；When detection, multiple flow sensors 42 to be measured are connect by connecting hole and flange respectively
Mouth 44 is arranged on the horizontal segment of multiple horizontal tubes row branch pipes 15.
Preferably, vertical pipe row branch pipe 16 uses " N " shape pipe or " u "-shaped pipe, including straight pipe 39 and bridge piece 40；Institute
The end and vertical pipe for stating multiple vertical pipe row branch pipes 16 are mounted on valve body 19 between flowing back to water pipe 14；
It is equipped with ultrasonic flowmeter 24 on the straight pipe 39 of the multiple vertical pipe row branch pipe 16, and is provided with to measurement of discharge
The connecting hole and flange-interface 44 of sensor 42；When detection, multiple flow sensors 42 to be measured pass through connecting hole or flange respectively
Interface 44 is arranged on the straight pipe 39 of multiple vertical pipe row branch pipes 16；
The flange-interface 44, which is arranged in, to be flowed on upward straight pipe；On same vertical pipe row's branch pipe 16, and it is provided with
On the adjacent straight pipe 39 of the straight pipe 39 of flange-interface 44, the symmetrical position of flange-interface 44 is provided with bellows 41.
Preferably, the straight pipe 39 on the horizontal segment of each horizontal tube row branch pipe 15 with each vertical pipe row's branch pipe 16
On be provided with the connecting hole and flange-interface 44 of multiple flow sensors to be measured 42, for connecting multiple flow sensors to be measured
42。
Preferably, the highest point of the hydraulic pipeline 35 is equipped with exhaust pipe 32, and the minimum point of the hydraulic pipeline 35 is equipped with
Drainpipe 43.
The present invention can be suitably used for the flows such as thermally induced flow meter, current indicator, baffle flowmeter, flow switch, pressure transmitter
The test of sensor.
A kind of control method of flow sensor detection platform, the flow sensor detection platform use any of the above-described
The flow sensor detection platform, control method are as follows:
A) flow sensor 42 to be measured is arranged on 29 by connecting hole or the setting of flange-interface 44 in developmental tube；
B) control model is selected by flow control system 2, control model includes local control, long-range control, two places control
System；Local control refers to the start and stop that motor and water pump are operated by local control unit 5；Long-range control refers to by remotely controlling list
The start and stop of motor and water pump are operated in member 6；Two places control, which refers to, operates electricity by local control unit 5 or remote control unit 6
The start and stop of the start and stop of motivation and water pump；
Motor and water pump keep original operating status when control mode switch；
C) before motor and water pump starting, water-level gauge 23, water main 7 and developmental tube in PLC control cabinet 36 and water tank 1
Pressure sensor communication on row 29 acquires the liquid level signal of water tank 1, the pressure signal of water main 7 and developmental tube row 29；When
PLC control cabinet 36 detects that the liquid level of water tank 1 is more than the pressure signal communication of preset range or water main 7, developmental tube row 29
When abnormal, 2 automatic blocking of flow control system forbids motor and water pump to start；
D) after motor and water pump start, operating pressure value is set；PLC control cabinet 36 collects water main 7 and test
The pressure signal of pipe row 29, and it is sent to frequency-conversion control cabinet 30, frequency-conversion control cabinet 30 carries out PID arithmetic according to pressure signal, adjusts
The revolving speed for motivation 28 of economizing on electricity, carry out fine adjustments to the pressure of developmental tube row 29 makes defeated to reach the operating pressure value of setting
The pressure balance of water lines 35 guarantees constant pressure for stream；
E) in operational process, detecting and analysing system 4 acquires ultrasonic flowmeter 24 by multi-channel signal acquiring instrument 26
The flow signal of flow signal and flow sensor to be measured 42, and communicated with signal analyzer 27；The signal analyzer
27 signal magnitudes exported for comparing ultrasonic flowmeter 24 and flow sensor to be measured 42, and export comparison result.Signal
Analyzer 27 can also automatically generate examining report according to the analysis data of record.
Preferably, flow sensor detection platform is additionally provided with the alarm module being connected with PLC control cabinet 36, when PLC is controlled
When cabinet 36 detects that the liquid level of water tank 1 arranges 29 pressure signal communication abnormality more than preset range or water main 7, developmental tube,
Alarm module is triggered, alarm signal is generated.
The utility model has the advantages that
1, medium fluid is recycled, and economizes on resources.
2, using variable-frequency motor, can constant pressure fluid different in flow rate is provided.
3, signal analyzer can compare the signal magnitude of ultrasonic flowmeter and flow sensor to be measured output, and export ratio
Relatively result；And examining report function can be automatically generated according to the analysis data of record, improve working efficiency.
4, steady flow baffle is installed in water tank, keeps fluidised form more stable, pump working is more stable.
5, using " N " shape or " u "-shaped vertical pipe row branch pipe andShape horizontal tube arranges branch pipe
Full water state guarantees that test result is more acurrate.
6, the present invention can be for flows such as thermally induced flow meter, current indicator, baffle flowmeter, flow switch, pressure transmitters
Sensor is tested, applied widely.
7, the present invention have now, the various controls mode such as long-range, two places, it is easy to operate, it is easy to control.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the flow sensor detection platform of the embodiment of the present invention.
Fig. 2 is the water tank floor map of the embodiment of the present invention.
Fig. 3 is the steady flow baffle schematic diagram of the embodiment of the present invention.
Fig. 4 is the vertical comb branch pipe schematic diagram of the embodiment of the present invention.
Description of symbols:
1-water tank, 2-flow control systems, 3-fluid circulating systems, 4-detecting and analysing systems, 5-local control lists
Member, 6-remote control units, 7-water mains, 8-horizontal tubes row water supplying pipe, 9-vertical pipes row water supplying pipe, 10-water pumps,
11-horizontal tubes row, 12-vertical pipes row, 13-horizontal tubes flow back to water pipe, 14-vertical pipes flow back to water pipe, 15-horizontal tubes row
Branch pipe, 16-vertical pipes row branch pipe, 17-return mains, 18,19,20,21-valve bodies, 22-sink cover boards, 23-water-level gauges,
It is 24-ultrasonic flowmeters, 25-tank drains pipes, 26-multi-channel signal acquiring instrument, 27-signal analyzers, 28-electronic
Machine, 29-developmental tubes row, 30-frequency-conversion control cabinets, 31-tank inlet pipes, 32-exhaust pipes, 33-sinks, 34-current stabilizations every
Plate, 35-hydraulic pipelines, 36-PLC control cabinets, 37-rinforcement bars, 38-limbers, 39-straight pipes, 40-bridge pieces,
41-bellowss, 42-flow sensors to be measured, 43-drainpipes, 44-flange-interfaces.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings it describes according to the present invention.
Embodiment 1:
As shown in Figure 1, a kind of flow sensor detection platform of the invention, including fluid circulating system 3, flow control system
System 2 and detecting and analysing system 4；
The fluid circulating system 3 includes water tank 1, water pump 10, motor 28 and hydraulic pipeline 35；The hydraulic pipeline 35
Including water main 7, return main 17 and developmental tube row 29；The feed water inlet of the water tank 1, water main 7, water pump 10, test
The water return outlet of pipe row 29, return main 17 and water tank 1 are sequentially connected to form closed circuit；The motor 28 is for driving water pump
10；
Pressure sensor is equipped on the water main 7 and developmental tube row 29；
Water-level gauge 23 is equipped in the water tank 1；
The developmental tube row 29 is equipped with ultrasonic flowmeter 24, and is provided with the connecting hole and method of flow sensor 42 to be measured
Blue interface 44；When detection, flow sensor 42 to be measured is by connecting hole or the setting of flange-interface 44 on developmental tube row 29；
The flow control system 2 includes local control unit 5 and remote control unit 6；The remote control unit 6 with
5 communication connection of local control unit；The local control unit 5 includes PLC control cabinet 36 and frequency-conversion control cabinet 30；The PLC
30 communication connection of control cabinet 36 and frequency-conversion control cabinet；Pressure sensor on the water main 7 and developmental tube row 29, Yi Jishui
The signal output end of water-level gauge 23 in case 1 is connected with the signal input part of PLC control cabinet 36；The frequency-conversion control cabinet 30
Output end is connected with the control terminal of motor 28；The PLC control cabinet 36 acquires the pressure letter of water main 7 and developmental tube row 29
Number, the liquid level signal of water tank 1, and the pressure signal of water main 7 and developmental tube row 29 are sent to frequency-conversion control cabinet 30, frequency conversion
Control cabinet 30 carries out PID arithmetic according to pressure signal, adjusts the revolving speed of motor 28, control 28 constant pressure of motor is for stream；
Flow control system 2 according to the present invention have now, the various controls mode such as long-range, two places." now " refers to electricity
The start and stop of motivation and water pump can only be operated on local control unit 5；" long-range " refers to that the start and stop of platform can only controlled remotely
It is operated on unit 6 processed；" two places " refer to that the start and stop of platform on local control unit 5 and remote control unit 6 while can carry out
Operation.
The detecting and analysing system 4 includes multi-channel signal acquiring instrument 26 and signal analyzer 27；The ultrasonic flow
The signal output end of meter 24 and flow sensor to be measured 42 is connected with the signal input part of multi-channel signal acquiring instrument 26；It is described
The signal output end of multi-channel signal acquiring instrument 26 is connected with the signal input part of signal analyzer 27；The signal analyzer 27
The signal magnitude exported for comparing ultrasonic flowmeter 24 and flow sensor to be measured 42, and export comparison result；It is described more
Channel signal Acquisition Instrument 26, which is used to acquire developmental tube by ultrasonic flowmeter 24, arranges 29 flow signals, the signal analyzer 27
Also have the function of to automatically generate examining report.
Embodiment 2:
The difference of the present embodiment and above-described embodiment is: the water tank 1 includes sink 33, sink cover board 22, is located at water
Rinforcement bar 37, tank inlet pipe 31, tank drains pipe 25 and the steady flow baffle 34 of 33 surrounding of slot；
The sink cover board 22 covers the top in sink 33, the cover board that can be dismantled using sliding open type；It is easy to operate, make
With conveniently；
As shown in Fig. 2, the steady flow baffle 34 is inserted vertically into sink, sink is divided into two groove bodies；Side groove body is equipped with
Feed water inlet, for connecting the entrance of water main 7, other side groove body is equipped with water return outlet, for connecting the outlet of return main 17；
Steady flow baffle is installed in water tank, keeps fluidised form more stable, pump working is more stable；
As shown in figure 3, steady flow baffle lower end is provided with limbers 38.
Embodiment 3:
The difference of the present embodiment and above-described embodiment is, the position on the water main 7 between water tank 1 and water pump 10
Set installation valve body 21；
The return main 17 is closing on installation valve body 20 at water tank 1, so as to facilitate the on-off of control hydraulic pipeline.
Embodiment 4:
The difference of the present embodiment and above-described embodiment is that the developmental tube row 29 includes horizontal tube row 11 and vertical pipe row
12；
The horizontal tube row 11 includes horizontal tube row water supplying pipe 8, horizontal tube flows back to water pipe 13 and multiple horizontal tubes arrange branch pipe
15；The entrance of horizontal tube row's water supplying pipe 8 is connected with the outlet of water main 7；The entrance of multiple horizontal tubes row's branch pipes 15 is and water
The outlet of flat pipe row water supplying pipe 8 is connected；The outlet of multiple horizontal tube row branch pipes 15 flows back to the entrance phase of water pipe 13 with horizontal tube
Even；The outlet that horizontal tube flows back to water pipe 13 is connected with the entrance of return main 17；
The vertical pipe row 12 includes vertical pipe row water supplying pipe 9, vertical pipe flows back to water pipe 14 and multiple vertical pipes arrange branch pipe
16；The outlet that the entrance of vertical pipe row's water supplying pipe 9 is connected with water main 7 is connected；The entrance of multiple vertical pipe row branch pipes 16 is equal
It is connected with the outlet of vertical pipe row's water supplying pipe 9；The outlet of multiple vertical pipe row branch pipes 16 flows back to entering for water pipe 14 with vertical pipe
Mouth is connected；The outlet that vertical pipe flows back to water pipe 14 is connected with the entrance of return main 17；
Valve body 18 is mounted on horizontal tube row's water supplying pipe 8 and vertical pipe row's water supplying pipe 9；
It is equipped with ultrasonic flowmeter 24 on the multiple horizontal tube row's branch pipe 15 and multiple vertical pipes row's branch pipe 16, and is opened
Need the connecting hole and flange-interface 44 of flow measurement quantity sensor 42；When detection, multiple flow sensors 42 to be measured pass through company respectively
Hole or the setting of flange-interface 44 is connect to arrange on branch pipe 15 and multiple vertical pipes row's branch pipe 16 in multiple horizontal tubes.
Embodiment 5:
The difference of the present embodiment and above-described embodiment is that horizontal tube row's branch pipe 15 is arranged by bellows and horizontal tube
Water supplying pipe 8 connects；Horizontal tube row's branch pipe 15 include horizontal segment andThe end of shape bending structure obliquely, the water
The end of flat pipe row branch pipe 15 usesThe shape horizontal tube of bending structure connection obliquely flows back to water pipe 13；The multiple level
The end of pipe row's branch pipe 15 and horizontal tube are mounted on valve body 19 between flowing back to water pipe 13；
It is equipped with ultrasonic flowmeter 24 on the horizontal segment of the multiple horizontal tube row branch pipe 15, and is provided with and is passed to measurement of discharge
The connecting hole and flange-interface 44 of sensor 42；When detection, multiple flow sensors 42 to be measured are connect by connecting hole or flange respectively
Mouth 44 is arranged on the horizontal segment of multiple horizontal tubes row branch pipes 15.UsingThe end of shape bending structure obliquely, Ke Yibao
Confirmatory test pipeline is full water state, guarantees that test result is more acurrate；
Embodiment 6:
The difference of the present embodiment and above-described embodiment is, as shown in figure 4, vertical pipe row's branch pipe 16 using " N " shape pipe or
" u "-shaped pipe, including straight pipe 39 and bridge piece 40；The end of the multiple vertical pipe row branch pipe 16 and vertical pipe flow back to water pipe
Valve body 19 is mounted between 14；Using " N " shape pipe or " u "-shaped pipe, it is ensured that test pipeline is full water state, guarantees test knot
Fruit is more acurrate；
It is equipped with ultrasonic flowmeter 24 on the straight pipe 39 of the multiple vertical pipe row branch pipe 16, and is provided with to measurement of discharge
The connecting hole and flange-interface 44 of sensor 42；When detection, multiple flow sensors 42 to be measured pass through connecting hole or flange respectively
Interface 44 is arranged on the straight pipe 39 of multiple vertical pipe row branch pipes 16；
The flange-interface 44, which is arranged in, to be flowed on upward straight pipe；On same vertical pipe row's branch pipe 16, and it is provided with
On the adjacent straight pipe 39 of the straight pipe 39 of flange-interface 44, the symmetrical position of flange-interface 44 is provided with bellows 41；It adopts
It is symmetrically installed, can be made after sensor to be measured is mounted on above flange-interface 44 with flange-interface 44 and bellows 41,
Place straight pipe 39 extends, and adjacent straight pipe 39 also can freely extend therewith, thus keep two flow development lengths consistent,
Direction is vertical.
Embodiment 7:
The difference of the present embodiment and above-described embodiment is, each horizontal tube is arranged on the horizontal segment of branch pipe 15 and each
It is provided with the connecting hole and flange-interface 44 of multiple flow sensors to be measured 42 on the straight pipe 39 of vertical pipe row's branch pipe 16, is used for
Connect multiple flow sensors to be measured 42.Same developmental tube road can install multiple flow sensors to be measured, it is convenient simultaneously into
The test of row flow sensor to be measured, improves the efficiency of test.
Embodiment 8:
The difference of the present embodiment and above-described embodiment is that the highest point of the hydraulic pipeline 35 is equipped with exhaust pipe 32, institute
The minimum point for stating hydraulic pipeline 35 is equipped with drainpipe 43.
The present invention also provides a kind of control method of flow sensor detection platform, the flow sensor detection platform
Flow sensor detection platform, control method described in any of the above-described embodiment are as follows:
A) flow sensor 42 to be measured is arranged on 29 by connecting hole or the setting of flange-interface 44 in developmental tube；
B) control model is selected by flow control system 2, control model includes local control, long-range control, two places control
System；Local control refers to the start and stop that motor and water pump are operated by local control unit 5；Long-range control refers to by remotely controlling list
The start and stop of motor and water pump are operated in member 6；Two places control, which refers to, operates electricity by local control unit 5 or remote control unit 6
The start and stop of the start and stop of motivation and water pump；
Motor and water pump keep original operating status when control mode switch；
C) before motor and water pump starting, water-level gauge 23, water main 7 and developmental tube in PLC control cabinet 36 and water tank 1
Pressure sensor communication on row 29 acquires the liquid level signal of water tank 1, the pressure signal of water main 7 and developmental tube row 29；When
PLC control cabinet 36 detects that the liquid level of water tank 1 is more than the pressure signal communication of preset range or water main 7, developmental tube row 29
When abnormal, 2 automatic blocking of flow control system forbids motor and water pump to start；
D) after motor and water pump start, operating pressure value is set；PLC control cabinet 36 collects water main 7 and test
The pressure signal of pipe row 29, and it is sent to frequency-conversion control cabinet 30, frequency-conversion control cabinet 30 carries out PID arithmetic according to pressure signal, adjusts
The revolving speed for motivation 28 of economizing on electricity, carry out fine adjustments to the pressure of developmental tube row 29 makes defeated to reach the operating pressure value of setting
The pressure balance of water lines 35 guarantees constant pressure for stream；
E) in operational process, detecting and analysing system 4 acquires ultrasonic flowmeter 24 by multi-channel signal acquiring instrument 26
The flow signal of flow signal and flow sensor to be measured 42, and communicated with signal analyzer 27；The signal analyzer
27 signal magnitudes exported for comparing ultrasonic flowmeter 24 and flow sensor to be measured 42, and export comparison result.Signal
Analyzer 27 can also automatically generate examining report according to the analysis data of record.
Flow sensor detection platform is additionally provided with the alarm module being connected with PLC control cabinet 36, when PLC control cabinet 36 detects
When liquid level to water tank 1 is more than the pressure signal communication abnormality of preset range or water main 7, developmental tube row 29, triggering alarm
Module generates alarm signal.
In the description of the present invention, the orientation of instructions such as term " highest ", " minimum ", "vertical", "horizontal", " upward " or
Positional relationship is based on the orientation or positional relationship on actual physics.
In the present invention, except as otherwise clearly stipulate that the terms such as term " installation ", " connected ", " connection " shall be understood in a broad sense,
For example, can be fixedly connected, also it is detachably connected, or integral；It can be by being mechanically coupled, it can also be by being electrically connected；It can direct phase
Even, can also by medium be connected or element inside connection or interaction relationship.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean combine the embodiment or
The specific structural features or feature of example description are included at least one embodiment or example of the invention, the specific knot of description
Structure feature or feature can be combined in any suitable manner in any one or more of the embodiments or examples.
Embodiment of the present invention is only that preferred embodiment is described, and above-described embodiment is exemplary, not
Limitation of the present invention, those skilled in the art are within the scope of the invention changed above-described embodiment, modify,
Replacement and variant should fall within the scope of protection determined by the claims of the present invention.
Claims (7)
1. a kind of flow sensor detection platform, it is characterised in that: including fluid circulating system (3), flow control system (2) and
Detecting and analysing system (4)；
The fluid circulating system (3) includes water tank (1), water pump (10), motor (28) and hydraulic pipeline (35)；The water delivery
Pipeline (35) includes water main (7), return main (17) and developmental tube row (29)；The feed water inlet of the water tank (1) is supplied water always
The water return outlet that pipe (7), water pump (10), developmental tube arrange (29), return main (17) and water tank (1), which is sequentially connected to be formed, to be closed back
Road；The motor (28) is for driving water pump (10)；
Pressure sensor is equipped on the water main (7) and developmental tube row (29)；
Water-level gauge (23) are equipped in the water tank (1)；
Developmental tube row (29) is equipped with ultrasonic flowmeter (24), and be provided with flow sensor to be measured (42) connecting hole and
Flange-interface (44)；When detection, flow sensor (42) to be measured is arranged by connecting hole or flange-interface (44) setting in developmental tube
(29) on；
The flow control system (2) includes local control unit (5) and remote control unit (6)；The remote control unit
(6) with local control unit (5) communication connection；The local control unit (5) includes PLC control cabinet (36) and frequency-conversion control cabinet
(30)；The PLC control cabinet (36) and frequency-conversion control cabinet (30) communication connection；The water main (7) and developmental tube row (29)
On pressure sensor and water tank (1) in water-level gauge (23) signal output end it is defeated with the signal of PLC control cabinet (36)
Enter end to be connected；The output end of the frequency-conversion control cabinet (30) is connected with the control terminal of motor (28)；
The detecting and analysing system (4) includes multi-channel signal acquiring instrument (26) and signal analyzer (27)；The supersonic flow
Signal input part of the signal output end of meter (24) and flow sensor to be measured (42) with multi-channel signal acquiring instrument (26)
It is connected；The signal output end of the multi-channel signal acquiring instrument (26) is connected with the signal input part of signal analyzer (27)；Institute
Signal analyzer (27) are stated for comparing the signal magnitude of ultrasonic flowmeter (24) and flow sensor to be measured (42) output, and
Export comparison result；
The developmental tube row (29) includes horizontal tube row (11) and vertical pipe row (12)；
The horizontal tube row (11) includes horizontal tube row water supplying pipe (8), horizontal tube flows back to water pipe (13) and multiple horizontal tubes arrange branch
It manages (15)；The entrance of horizontal tube row water supplying pipe (8) is connected with the outlet of water main (7)；Multiple horizontal tube rows branch pipe (15)
Entrance is connected with the outlet of horizontal tube row water supplying pipe (8)；The outlet of multiple horizontal tube rows branch pipe (15) is flow back to horizontal tube
The entrance of water pipe (13) is connected；The outlet that horizontal tube flows back to water pipe (13) is connected with the entrance of return main (17)；
The vertical pipe row (12) includes vertical pipe row water supplying pipe (9), vertical pipe flows back to water pipe (14) and multiple vertical pipes arrange branch
It manages (16)；The outlet that the entrance of vertical pipe row water supplying pipe (9) is connected with water main (7) is connected；Multiple vertical pipes arrange branch pipe
(16) entrance is connected with the outlet of vertical pipe row water supplying pipe (9)；The outlet of multiple vertical pipes row branch pipe (16) is and vertically
The entrance that pipe flows back to water pipe (14) is connected；The outlet that vertical pipe flows back to water pipe (14) is connected with the entrance of return main (17)；
Valve body (18) are mounted on horizontal tube row water supplying pipe (8) and vertical pipe row water supplying pipe (9)；
It is equipped with ultrasonic flowmeter (24) on the multiple horizontal tube row branch pipe (15) and multiple vertical pipes row branch pipe (16), and
It is provided with the connecting hole and flange-interface (44) of flow sensor to be measured (42)；When detection, multiple flow sensors (42) to be measured point
Not Tong Guo connecting hole or flange-interface (44) setting multiple horizontal tubes row branch pipe (15) and multiple vertical pipes arrange branch pipe (16) on；
Horizontal tube row branch pipe (15) is connect by bellows with horizontal tube row water supplying pipe (8)；The horizontal tube arranges branch pipe
(15) include horizontal segment andThe end of the end of shape bending structure obliquely, horizontal tube row branch pipe (15) usesThe shape horizontal tube of bending structure connection obliquely flows back to water pipe (13)；The end of the multiple horizontal tube row branch pipe (15) with
Horizontal tube is mounted on valve body (19) between flowing back to water pipe (13)；
Ultrasonic flowmeter (24) are equipped on the horizontal segment of the multiple horizontal tube row branch pipe (15), and is provided with and is passed to measurement of discharge
The connecting hole and flange-interface (44) of sensor (42)；When detection, multiple flow sensors (42) to be measured respectively by connecting hole or
Flange-interface (44) setting is on the horizontal segment of multiple horizontal tubes row branch pipe (15)；
Vertical pipe arranges branch pipe (16) and uses " N " shape pipe or " u "-shaped pipe, including straight pipe (39) and bridge piece (40)；It is described more
The end of a vertical pipe row branch pipe (16) and vertical pipe are mounted on valve body (19) between flowing back to water pipe (14)；
Ultrasonic flowmeter (24) are equipped on the straight pipe (39) of the multiple vertical pipe row branch pipe (16), and are provided with to flow measurement
The connecting hole and flange-interface (44) of quantity sensor (42)；When detection, multiple flow sensors (42) to be measured pass through connection respectively
Hole or flange-interface (44) setting are on the straight pipe (39) of multiple vertical pipes row branch pipe (16)；
The flange-interface 44, which is arranged in, to be flowed on upward straight pipe；On same vertical pipe row's branch pipe 16, and it is provided with flange
On the adjacent straight pipe 39 of the straight pipe 39 of interface 44, the symmetrical position of flange-interface 44 is provided with bellows 41.
2. flow sensor detection platform according to claim 1, it is characterised in that: the water tank (1) includes sink
(33), sink cover board (22), the rinforcement bar (37) for being located at sink (33) surrounding, tank inlet pipe (31), tank drains pipe (25)
With steady flow baffle (34)；
The sink cover board (22) covers the top in sink (33), the cover board that can be dismantled using sliding open type；
The steady flow baffle (34) is inserted vertically into sink, and sink is divided into two groove bodies；Side groove body is equipped with feed water inlet, for connecting
The entrance of water main (7) is connect, other side groove body is equipped with water return outlet, for connecting the outlet of return main (17)；
Steady flow baffle lower end is provided with limbers (38).
3. flow sensor detection platform according to claim 1, it is characterised in that: in water on the water main (7)
Position between case (1) and water pump (10) is installed by valve body (21)；
The return main (17) is closing on installation valve body (20) at water tank (1).
4. flow sensor detection platform according to claim 1, it is characterised in that: each horizontal tube arranges branch pipe (15)
Horizontal segment on and each vertical pipe row branch pipe (16) straight pipe (39) on be provided with multiple flow sensors to be measured (42)
Connecting hole or flange-interface (44), for connecting multiple flow sensors to be measured (42).
5. flow sensor detection platform according to any one of claims 1 to 4, it is characterised in that: the water-supply-pipe
The highest point on road (35) is equipped with exhaust pipe (32), and the minimum point of the hydraulic pipeline (35) is equipped with drainpipe (43).
6. a kind of control method of flow sensor detection platform, which is characterized in that the flow sensor detection platform uses
Flow sensor detection platform, control method described in any one of claims 1 to 5 are as follows:
A) flow sensor to be measured (42) are arranged on (29) by connecting hole or flange-interface (44) setting in developmental tube；
B) control model is selected by flow control system (2), control model includes local control, long-range control, two places control；
Local control refers to the start and stop that motor and water pump are operated by local control unit (5)；Long-range control refers to by remotely controlling list
The start and stop of motor and water pump are operated on first (6)；Two places control refers to through local control unit 5 or remote control unit (6) behaviour
Make the start and stop of the start and stop of motor and water pump；
Motor and water pump keep original operating status when control mode switch；
C) before motor and water pump starting, PLC control cabinet (36) and water tank (1) interior water-level gauge (23), water main (7) and examination
The pressure sensor communication on pipe row (29) is tested, liquid level signal, water main (7) and the developmental tube row (29) of water tank (1) are acquired
Pressure signal；When PLC control cabinet (36) detects that the liquid level of water tank (1) is more than preset range or water main (7), developmental tube
When arranging the pressure signal communication abnormality of (29), flow control system (2) automatic blocking forbids motor and water pump to start；
D) after motor and water pump start, operating pressure value is set；PLC control cabinet (36) collects water main (7) and test
Pipe arranges the pressure signal of (29), and is sent to frequency-conversion control cabinet (30), and frequency-conversion control cabinet (30) carries out PID fortune according to pressure signal
It calculates, adjusts the revolving speed of motor (28), the pressure of developmental tube row (29) is adjusted, to reach the operating pressure of setting
Value；
E) in operational process, detecting and analysing system (4) passes through multi-channel signal acquiring instrument (26) acquisition ultrasonic flowmeter (24)
Flow signal and flow sensor to be measured (42) flow signal, and communicated with signal analyzer (27)；The signal
Analyzer (27) is used to compare the signal magnitude of ultrasonic flowmeter (24) and flow sensor to be measured (42) output, and exports ratio
Relatively result.
7. a kind of control method of flow sensor detection platform according to claim 6, which is characterized in that flow sensing
Device detection platform is additionally provided with the alarm module being connected with PLC control cabinet (36), when PLC control cabinet (36) detects water tank (1)
When liquid level arranges the pressure signal communication abnormality of (29) more than preset range or water main (7), developmental tube, alarm module is triggered,
Generate alarm signal.
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| CN106706083A (en) * | 2016-12-23 | 2017-05-24 | 中山市优胜电子科技有限公司 | Water flow sensor performance test bed system |
| CN108318067B (en) * | 2018-02-28 | 2024-02-02 | 广东万家乐燃气具有限公司 | Automatic detection device and quality control system |
| CN109765940A (en) * | 2019-01-29 | 2019-05-17 | 南昌大学 | A kind of automatic flow control system for hydraulic model test |
| CN111947916A (en) * | 2020-07-30 | 2020-11-17 | 黄山双桦动林压缩机有限公司 | Variable displacement compressor flow sensor performance testing device and testing method thereof |
| CN112162482A (en) * | 2020-10-30 | 2021-01-01 | 广州能源检测研究院 | Intelligent combined optimization rectifying device and method suitable for complex flow field and application |
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