CN208751634U - A kind of rainfall runoff flow measurement device - Google Patents
A kind of rainfall runoff flow measurement device Download PDFInfo
- Publication number
- CN208751634U CN208751634U CN201821165872.3U CN201821165872U CN208751634U CN 208751634 U CN208751634 U CN 208751634U CN 201821165872 U CN201821165872 U CN 201821165872U CN 208751634 U CN208751634 U CN 208751634U
- Authority
- CN
- China
- Prior art keywords
- rain pipe
- outlet
- connecting tube
- upstream
- downstream
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a kind of rainfall runoff flow measurement device, rainfall runoff flow can be accurately measured in small rainfall, while can take into account the measurement of big flow.It includes inspection shaft, upstream rain pipe, downstream rain pipe, the entrance of the inner cavity of the inspection shaft accesses the outlet of the upstream rain pipe, the outlet of the inner cavity of the inspection shaft connects the import of the downstream rain pipe, it is characterized by: being provided with connecting tube between the outlet of the upstream rain pipe and the import of the downstream rain pipe, the inlet calibre of the connecting tube is greater than the exit caliber of the upstream rain pipe, flexible seal ring is disposed between the inner wall anchor ring of the entrance of the outer ring surface and connecting tube of the outlet of the upstream rain pipe, the outlet of the connecting tube is plugged in the entry zone of the downstream rain pipe, the connecting tube is specially lightweight connecting tube, the top of the connecting tube connects the force side of compression bar by vertical connecting rod, the force-transmitting part of the compression bar is pressed in pressure sensor.
Description
Technical field
The utility model relates to the technical field of environmentally friendly water process, specially a kind of rainfall runoff flow measurement device.
Background technique
Attention with China to rainwater pollution, numerous scientific research institutions start to study rainwater, wherein rainfall runoff
The measurement of flow is essential link.Currently, the more speed using flowing water in sensor measurement pipeline of commercially available flowmeter
Degree, then liquid level is measured, according to active cross-section area * flow relocity calculation outflow.The major drawbacks of the method are sensor requirements
At least about the liquid level of 25mm could effectively work, and in practical rainfall, initial rainwater runoff and small rainfall Shi Junwu
Method meets this requirement.
Summary of the invention
In view of the above-mentioned problems, the utility model provides a kind of rainfall runoff flow measurement device, the energy in small rainfall
Accurate metering rainfall runoff flow, while the measurement of big flow can be taken into account.
A kind of rainfall runoff flow measurement device, technical solution be such that it include inspection shaft, upstream rain pipe, under
Rain pipe is swum, the entrance of the inner cavity of the inspection shaft accesses the outlet of the upstream rain pipe, and the outlet of the inner cavity of the inspection shaft connects
The import of the downstream rain pipe is connect, is provided with connection between the outlet of the upstream rain pipe and the import of the downstream rain pipe
Pipe, the inlet calibre of the connecting tube are greater than the exit caliber of the upstream rain pipe, the outlet of the upstream rain pipe it is outer
Flexible seal ring is disposed between anchor ring and the inner wall anchor ring of the entrance of the connecting tube, the outlet of the connecting tube is plugged in institute
In the entry zone for stating downstream rain pipe, the connecting tube is specially lightweight connecting tube, and it is vertical that the top of the connecting tube passes through
To connecting rod connection compression bar force side, the force-transmitting part of the compression bar is pressed in pressure sensor, the pressure sensor
Upper area positioned at the inner cavity of the inspection shaft, the output end of the pressure sensor are external to the input terminal of PLC by line,
The pressure sensor converts pressure into the input terminal of direct voltage output to PLC, presets voltage and runoff in the PLC
Direct ratio functional relation between amount, the output end of the PLC are external to display, and display changes over time on the display
Flow results.
It is further characterized by: the connecting tube includes front horizontal segment, the oblique closing in section in rear portion, and the front is horizontal
The bore of the entrance of section is greater than the bore of the outlet of the upstream rain pipe, the outer ring surface of the outlet of the upstream rain pipe and institute
It states and is disposed with flexible seal ring between the inner wall anchor ring of the entrance of front horizontal segment, the outlet inserting of the oblique closing in section in rear portion
In in the entry zone of the downstream rain pipe；
The rear upper end of the front horizontal segment is connected with the lower end of connecting rod, the upper end connection compression bar of the connecting rod
The other end force-transmitting part of force side, the compression bar is pressed in the upper end of the pressure sensor, the bottom of pressure sensor
Be supported on connecting plate, the connecting plate is installed in the correspondence side wall of the inspection shaft, it is ensured that pressure sensor stress it is reliable and stable；
The display is specially touch screen；
The PLC, display are respectively positioned on the perimeter arrangement of inspection shaft.
After the utility model, pressure sensor converts pressure into the direct voltage output of 0-10V to the input of PLC
End, since run-off (Q) and pressure (P) are proportional, voltage (U) and pressure (P) are proportional, then voltage (U) and diameter
Proportional functional relation between flow (Q) predefines flow corresponding to voltage value, first uses in the lab before actual measurement
The corresponding output voltage values of different flow rate tests obtain Q-U relation curve, are input in PLC later, by PLC in actual measurement
The voltage that the real-time input pressure sensor of signal obtains, can real-time display changes over time on a display screen flow results,
It can reflect Rainfall runoff by the variation of voltage value, no matter uninterrupted is equal by the stress size of measurement connecting tube
It can accurately reflect changes in flow rate in real time；To sum up, rainfall runoff flow can be accurately measured in small rainfall, while can be taken into account big
The measurement of flow.
Detailed description of the invention
Fig. 1 is the main view structure schematic diagram of the utility model；
Title corresponding to serial number is as follows in figure:
Connecting tube 1, flexible seal ring 2, upstream rain pipe 3, connecting rod 4, pressure sensor 5, compression bar 6, PLC7, display
Device 8, inspection shaft 9, downstream rain pipe 10, front horizontal segment 11, the oblique closing in section 12 in rear portion, connecting plate 13.
Specific embodiment
A kind of rainfall runoff flow measurement device, is shown in Fig. 1: it includes inspection shaft 9, upstream rain pipe 3, downstream rain pipe 10,
The inner cavity of inspection shaft 9 entrance access upstream rain pipe 3 outlet, the inner cavity of inspection shaft 9 outlet connection downstream rain pipe 10 into
Mouthful, connecting tube 1 is provided between the outlet of upstream rain pipe 3 and the import of downstream rain pipe 10, the inlet calibre of connecting tube 1 is greater than
The exit caliber of upstream rain pipe 3, between the inner wall anchor ring of the entrance of the outer ring surface and connecting tube 1 of the outlet of upstream rain pipe 3
It is disposed with flexible seal ring 2, the outlet of connecting tube 1 is plugged in the entry zone of downstream rain pipe 10, and connecting tube 1 is specially light
Matter connecting tube, the top of connecting tube 1 connect the force side of compression bar 6, the force-transmitting part pressure of compression bar 6 by vertical connecting rod 4
Loaded on pressure sensor 5, pressure sensor 5 is located at the upper area of the inner cavity of inspection shaft 9, and the output end of pressure sensor 5 passes through
Line is external to the input terminal of PLC7, and pressure sensor 5 converts pressure into the input terminal of direct voltage output to PLC7, PLC7
The direct ratio functional relation between voltage and run-off is inside preset, the output end of PLC7 is external to display 8, shows on display 8
Show the flow results changed over time.
Connecting tube 1 includes front horizontal segment 11, the oblique closing in section 12 in rear portion, and the bore of the entrance of front horizontal segment 11 is big
Bore in the outlet of upstream rain pipe 3, the inner wall of the entrance of the outer ring surface and front horizontal segment 11 of the outlet of upstream rain pipe 3
Flexible seal ring 2 is disposed between anchor ring, the outlet of the oblique closing in section 12 in rear portion is plugged in the entry zone of downstream rain pipe 10
It is interior；
The rear upper end of front horizontal segment is connected with the lower end of connecting rod 4, the force of the upper end connection compression bar 6 of connecting rod 4
End, the other end force-transmitting part press fitting of compression bar 6 is in the upper end of pressure sensor 5, and the bottom supporting of pressure sensor 5 is in even
Fishplate bar 13, connecting plate 13 are installed in the correspondence side wall of inspection shaft 9, it is ensured that 5 stress of pressure sensor it is reliable and stable；
Display 8 is specially touch screen；
PLC7, display 8 are respectively positioned on the perimeter arrangement of inspection shaft 9.
Its working principles are as follows: pressure sensor converts pressure into the direct voltage output of 0-10V to the input of PLC
End, since run-off (Q) and pressure (P) are proportional, voltage (U) and pressure (P) are proportional, then voltage (U) and diameter
Proportional functional relation between flow (Q) predefines flow corresponding to voltage value, first uses in the lab before actual measurement
The corresponding output voltage values of different flow rate tests obtain Q-U relation curve, are input in PLC later, by PLC in actual measurement
The voltage that the real-time input pressure sensor of signal obtains, can real-time display changes over time on a display screen flow results,
It can reflect Rainfall runoff by the variation of voltage value, no matter uninterrupted is equal by the stress size of measurement connecting tube
It can accurately reflect changes in flow rate in real time.
Specific embodiment of the utility model is described in detail above, but content is only what the utility model was created
Preferred embodiment should not be construed as limiting the practical range of the utility model creation.All create according to the utility model is applied
All the changes and improvements made by range etc., shall still fall within the scope of this patent.
Claims (5)
1. a kind of rainfall runoff flow measurement device comprising inspection shaft, upstream rain pipe, downstream rain pipe, the inspection shaft it is interior
The entrance of chamber accesses the outlet of the upstream rain pipe, the outlet of the inner cavity of the inspection shaft connect the downstream rain pipe into
Mouthful, it is characterised in that: connecting tube, the company are provided between the outlet of the upstream rain pipe and the import of the downstream rain pipe
The inlet calibre of adapter tube is greater than the exit caliber of the upstream rain pipe, the outer ring surface of the outlet of the upstream rain pipe and described
Flexible seal ring is disposed between the inner wall anchor ring of the entrance of connecting tube, the outlet of the connecting tube is plugged in the downstream rainwater
In the entry zone of pipe, the connecting tube is specially lightweight connecting tube, and the top of the connecting tube passes through vertical connecting rod
The force side of compression bar is connected, the force-transmitting part of the compression bar is pressed in pressure sensor, and the pressure sensor is located at the basement
The upper area of the inner cavity of well, the output end of the pressure sensor are external to the input terminal of PLC by line, and the pressure passes
Sensor converts pressure into the input terminal of direct voltage output to PLC, is preset between voltage and run-off in the PLC just
Than functional relation, the output end of the PLC is external to display, and the flow results changed over time are shown on the display.
2. a kind of rainfall runoff flow measurement device as described in claim 1, it is characterised in that: the connecting tube includes front
Horizontal segment, the oblique closing in section in rear portion, the bore of the entrance of the front horizontal segment are greater than the mouth of the outlet of the upstream rain pipe
It is arranged between the inner wall anchor ring of the entrance of diameter, the outer ring surface of the outlet of the upstream rain pipe and the front horizontal segment flexible
The outlet of sealing ring, the oblique closing in section in rear portion is plugged in the entry zone of the downstream rain pipe.
3. a kind of rainfall runoff flow measurement device as claimed in claim 2, it is characterised in that: after the front horizontal segment
Portion upper end is connected with the lower end of connecting rod, the force side of the upper end connection compression bar of the connecting rod, and the other end of the compression bar passes
The press fitting of power part is in the upper end of the pressure sensor, and for the bottom supporting of pressure sensor in connecting plate, the connecting plate is solid
Correspondence side wall loaded on the inspection shaft.
4. a kind of rainfall runoff flow measurement device as described in claim 1, it is characterised in that: the display is specially to touch
Touch screen.
5. a kind of rainfall runoff flow measurement device as described in claim 1, it is characterised in that: the equal position of the PLC, display
It is arranged in the perimeter of inspection shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821165872.3U CN208751634U (en) | 2018-07-23 | 2018-07-23 | A kind of rainfall runoff flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821165872.3U CN208751634U (en) | 2018-07-23 | 2018-07-23 | A kind of rainfall runoff flow measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208751634U true CN208751634U (en) | 2019-04-16 |
Family
ID=66057450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821165872.3U Expired - Fee Related CN208751634U (en) | 2018-07-23 | 2018-07-23 | A kind of rainfall runoff flow measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208751634U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801369A (en) * | 2018-07-23 | 2018-11-13 | 苏州科技大学 | A kind of rainfall runoff flow measurement device |
-
2018
- 2018-07-23 CN CN201821165872.3U patent/CN208751634U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801369A (en) * | 2018-07-23 | 2018-11-13 | 苏州科技大学 | A kind of rainfall runoff flow measurement device |
| CN108801369B (en) * | 2018-07-23 | 2024-03-29 | 苏州科技大学 | Rainwater runoff flow measuring device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108801369A (en) | A kind of rainfall runoff flow measurement device | |
| CN107218516B (en) | A kind of water delivery in pipeline system multiple spot minute leakage detection device and method | |
| CN201130143Y (en) | Porous medium material permeability coefficient determinator | |
| CN104568734B (en) | Metal erosion behavior monitoring system in Flow Corrosion medium | |
| CN207215709U (en) | Device for rock cranny three-phase flow displacement disperse capture research | |
| CN208751634U (en) | A kind of rainfall runoff flow measurement device | |
| CN111595535A (en) | Tunnel joint leakage detection device and using method thereof | |
| CN204988417U (en) | Extract proportioning device | |
| CN104501884A (en) | Rectangular flowmeter | |
| CN2856414Y (en) | Downhole level measurer for dynamic monitoring geothermal well | |
| CN207717329U (en) | Siphon drainge system testing stand | |
| CN204575153U (en) | A kind of high-precision ultrasonic water meter | |
| CN100507467C (en) | Device for shunting and surveying current with broad measuring range | |
| CN112833030B (en) | Pump station field flow monitoring method based on front-located shaft type water inlet flow channel | |
| CN210864090U (en) | Constant-pressure quantitative water injection type raininess simulator | |
| CN210775895U (en) | Constant-pressure quantitative water injection type raininess simulation calibration device | |
| CN203132945U (en) | Solid content measurement device in desalting evaporation device | |
| CN209764866U (en) | Water and soil conservation monitoring runoff simulation device | |
| CN215064801U (en) | Delay test machine with delay function for water flow indicator switch | |
| CN201284920Y (en) | In-station self-using gas pressure regulating meter prover | |
| CN207686706U (en) | Single well metering device | |
| CN206683847U (en) | The complete pressurized equipment performance detection testing bench of secondary water-supply | |
| CN206488836U (en) | Device for carrying out low-temperature test to water supply standpipe and water meter | |
| CN111271604A (en) | Dense lotion pipeline transportation wall annotates liquid drag reduction system | |
| CN220625408U (en) | Inserted flowmeter for drainage pipe network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210723 |