CN101349922A - Constant flow control device of pipe waste water - Google Patents
Constant flow control device of pipe waste water Download PDFInfo
- Publication number
- CN101349922A CN101349922A CNA2008101205963A CN200810120596A CN101349922A CN 101349922 A CN101349922 A CN 101349922A CN A2008101205963 A CNA2008101205963 A CN A2008101205963A CN 200810120596 A CN200810120596 A CN 200810120596A CN 101349922 A CN101349922 A CN 101349922A
- Authority
- CN
- China
- Prior art keywords
- waste water
- frequency converter
- computer
- lift pump
- pipe
- 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.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims abstract description 4
- 239000002699 waste material Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Flow Control (AREA)
Abstract
The invention discloses a constant current control device for waste water in pipes, comprising a pressure transformer, a computer, a frequency converter, a waste water lift pump and a waste water pipeline, wherein the pressure sensor probes of the pressure transformer are inserted into the waste water pipeline, the input of the pressure transformer is connected with a power supply while two signal outputs are respectively connected with the input of a computer I/O port and the common end of the I/O port, the frequency setting voltage input of the frequency converter is connected with the analogue output of the computer I/O port, the analogue signal input common end of the frequency converter is connected with the common end of the computer I/O port, the output of the frequency converter is connected with the power end of the motor of the waste water lift pump, the water outlet of the waste water lift pump is connected with the water inlet of the waste water pipeline. The device has simple adjustment, measurement and maintenance and low cost, is not limited by the shapes and diameters of pipelines and can quickly and effectively control the current of waste water in the pipeline constant.
Description
Technical field
The present invention relates to a kind of constant-current control device of pipe waste water.
Background technology
Wastewater treatment pH value control system because control signal is subjected to directly influencing of variation of waste water stoste pH value and fluctuations in discharge simultaneously, as adopts conventional decoupling method to keep waste water constant current in the pipeline, will make control system become complicated, difficult.Keep the constant device of wastewater flow in the pipeline, the flow signal that adopts flowmeter to record in the pipeline changes as control signal more, thereby changes the regulating and controlling of controller to relevant apparatus, realizes that wastewater flow is constant in the pipeline.Conventional with the flow in the flow measurement pipeline, big, the low precision of adjusting drift amplitude, particularly complicated pipeline (internal diameter varies) is directly surveyed the interior wastewater flow of pipe and is not easy, and numerous factors can make that all the flow measurement accuracy of measurement is difficult to guarantee.Though many precision of flowmeter own are good in electromagnetic flowmeter, the installation site is strict, limited by mounting condition during the actual use of engineering, and costs an arm and a leg.
Summary of the invention
It is convenient to the purpose of this invention is to provide a kind of installation and maintenance, fast the constant-current control device of the pipe waste water of efficient and cost-effective practicality.
The constant-current control device of pipe waste water of the present invention, comprise pressure unit, computing machine, frequency converter, waste water lift pump and waste pipe, pressure transducer probe in the pressure unit inserts in the waste pipe, the input termination power of pressure unit, two signal output parts of pressure unit link to each other with the input end of Computer I/O mouth and the common port of I/O mouth respectively, the frequency setting voltage input end of frequency converter links to each other with the analog output of Computer I/O mouth, the simulating signal input common port of frequency converter links to each other with the common port of Computer I/O mouth, the output terminal of frequency converter links to each other with the power end of waste water lift pump motor, and the water delivering orifice of waste water lift pump is communicated with the water inlet of waste pipe.
Principle of work is as follows:
The water inlet of waste water lift pump is communicated with wastewater disposal basin, the user is according to the requirement of actual treatment wastewater flow, set waste pipe force value and correspondent voltage value U thereof, utilize the pressure transducer in the pressure unit to record waste water actual pressure in the pipeline, and be translated into normal voltage U
1, by computing machine with normal voltage U
1Compare with setting voltage value U and to obtain difference signal Δ U, and going out to keep the control voltage of waste water constant current in the pipeline according to this calculated signals, the frequency of regulating frequency converter in view of the above changes waste water lift pump rotating speed then, change wastewater flow in the pipeline, make the waste water constant current in the pipeline.
The invention has the advantages that: apparatus of the present invention are applicable to the various constant occasions of wastewater flow in the pipeline that need to keep, this device is applied to pipe waste water and handles the pH value control system, can effectively solve control signal and be subjected to the problem that waste water stoste pH value changes and fluctuations in discharge directly influences simultaneously, the decoupling zero disposal route is simple.Wastewater flow is not subjected to geometric configuration in the pipeline, caliber changes influences, and fast and effeciently wastewater flow reaches the needed constant current value of user in the control tube.Debug measurement is easy to maintenance, has reduced cost, the puzzlement of having avoided the restriction of flowmeter installation site to bring.
Description of drawings
Fig. 1 is a pipe waste water constant-current control device synoptic diagram of the present invention.
Embodiment
With reference to Fig. 1, pipe waste water constant-current control device of the present invention, comprise pressure unit 1, computing machine 2, frequency converter 3, waste water lift pump 4 and waste pipe 5, pressure transducer probe in the pressure unit inserts in the waste pipe, the input termination power of pressure unit, two signal output parts of pressure unit link to each other with the input end of Computer I/O mouth and the common port of I/O mouth respectively, the frequency setting voltage input end of frequency converter links to each other with the analog output of Computer I/O mouth, the simulating signal input common port of frequency converter links to each other with the common port of Computer I/O mouth, the output terminal of frequency converter links to each other with the power end of waste water lift pump motor, and the water delivering orifice of waste water lift pump is communicated with the water inlet of waste pipe.
Claims (1)
1. the constant-current control device of pipe waste water, it is characterized in that comprising pressure unit (1), computing machine (2), frequency converter (3), waste water lift pump (4) and waste pipe (5), pressure transducer probe in the pressure unit inserts in the waste pipe, the input termination power of pressure unit, two signal output parts of pressure unit link to each other with the input end of Computer I/O mouth and the common port of I/O mouth respectively, the frequency setting voltage input end of frequency converter links to each other with the analog output of Computer I/O mouth, the simulating signal input common port of frequency converter links to each other with the common port of Computer I/O mouth, the output terminal of frequency converter links to each other with the power end of waste water lift pump motor, and the water delivering orifice of waste water lift pump is communicated with the water inlet of waste pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101205963A CN101349922A (en) | 2008-08-28 | 2008-08-28 | Constant flow control device of pipe waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101205963A CN101349922A (en) | 2008-08-28 | 2008-08-28 | Constant flow control device of pipe waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101349922A true CN101349922A (en) | 2009-01-21 |
Family
ID=40268737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008101205963A Pending CN101349922A (en) | 2008-08-28 | 2008-08-28 | Constant flow control device of pipe waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101349922A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446984A (en) * | 2017-03-08 | 2019-11-12 | 依姆奈特责任有限公司 | Improved fluid flow tubes manage system and method |
-
2008
- 2008-08-28 CN CNA2008101205963A patent/CN101349922A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110446984A (en) * | 2017-03-08 | 2019-11-12 | 依姆奈特责任有限公司 | Improved fluid flow tubes manage system and method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20090121 |