CN106249767A - Multi-point flux distribution integration apparatus and control method thereof - Google Patents
Multi-point flux distribution integration apparatus and control method thereof Download PDFInfo
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- CN106249767A CN106249767A CN201610583580.0A CN201610583580A CN106249767A CN 106249767 A CN106249767 A CN 106249767A CN 201610583580 A CN201610583580 A CN 201610583580A CN 106249767 A CN106249767 A CN 106249767A
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- G—PHYSICS
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- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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- G05D7/06—Control of flow characterised by the use of electric means
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Abstract
The invention provides a kind of multi-point flux distribution integration apparatus and control method thereof, including PLC, water tank, at least one pump tubing length being connected with water tank by water inlet pipe main valve, multiple outlet pipelines connected with pump tubing length, are provided with online COD analyser, online nh 3-n analyser between described pump tubing length and the pipeline of water tank；Distribution pipe electric butterfly valve it is provided with on described outlet pipeline；Described online COD analyser, online nh 3-n analyser, distribution pipe electrically operated valve are all coupled by holding wire with described PLC；Described PLC according to online COD analyser, the detection of online nh 3-n analyser water tank in the COD value of water that stores and COD/NH3The size of the open degree of Ratio control distribution pipe electrically operated valve.Analyzed the water quality of former water by on-line checking, and combine PLC and the synergism of distribution pipe motorized adjustment butterfly valve, it is achieved each uses the assignment of traffic of water spot according to concrete water quality automatic control and adjustment.
Description
Technical field
The present invention relates to sewage disposal, industrial water supply process field, especially a kind of multi-point flux distribution integration apparatus
And control method.
Background technology
Notification number is that the Chinese patent of CN102001791B provides " a kind of cold district cities based on multipoint water feeding regulation and control
City's reinforced sewage treating method ", to solve the denitrogenation dephosphorizing of synchronous high-efficiency, poor processing effect, operating cost is high and is not suitable for
The problem of Treatment of Municipal Wastewater in Cold Region.This invention, by certain proportion is assigned to anaerobic pond and anoxic pond by sewage, increases
Big sewage, in anaerobic pond and the time of staying of anoxic pond, if the time of staying design of technique routinely, then can reduce anaerobic pond
With the volume of anoxic pond, save construction cost；Efficiently solve carbon source contradiction in common process, make anaerobism section release phosphorus process and lack
In oxygen section denitrification process, carbon source is sufficient, improves Nitrogen/Phosphorus Removal；The sludge reflux being back to anaerobic pond uses 5%～30%
Relatively low reflux ratio, can reach the purpose of dephosphorization；The sludge reflux being back to Aerobic Pond head end uses 30%～50%, nitrification liquid
Backflow uses 100%～300%, i.e. can reach good denitrification；Efficiently solve the contradiction of sludge age in common process,
Control to be suitable for the different mud age of denitrogenation and dephosphorization by water distribution ratio, improve Nitrogen/Phosphorus Removal.
But, segmental influent or branch water inlet bio-denitrifying sewage dephosphorization that current domestic and international application is more process technique,
In the regulation of multi-point flux distribution, the most all according to the influent quality of early stage, set different water inlet distribution ratios, and pass through people
The form of work regulation manually-operated gate or gate completes.Can there are two problems in such execution: one is can not be at any time according to entering
The flow of inlet water of the variation reasonable distribution multiple spot of water water quality, causes the waste of water-inlet carbon source and the reduction of removal efficiency of nitrogen and phosphorus；Two
It is that labor workload is big owing to the variation at any time of water quality can cause manual adjustment valve frequent.Additionally process neck in industrial water supply
Territory, same technique can be designed to organize structures or many complete equipments, such as V-type filter tank, more medium filter, active carbon filter more
Deng, original open degree of water inlet manually-operated gate that sets when total Water of intaking changes, due to partly-filled pipe-flow with along Cheng Shuitou
The existence of the factors such as loss, necessarily causes often organizing equipment or structures water inlet is uneven, if at this moment regulated by manual method,
Then need more artificial.
Summary of the invention
In order to solve existing segmental influent or branch water inlet manually adjusts technical problem that flow causes and workload is big
Problem, the present invention proposes a kind of multi-point flux distribution integration apparatus and control method thereof, by water source water inlet by integration intelligence
Can complete set of equipments by setting pro rate as multipoint water feeding, save substantial amounts of artificial calculating and manual operation, it is to avoid because of artificial tune
The low problem caused of rectification flow precision, can also be analyzed the operation treatment effect under different condition and optimize simultaneously.
The present invention realizes above-mentioned technical purpose by techniques below means.
A kind of multi-point flux distribution integration apparatus, it is characterised in that including PLC, water tank 1, at least one leads to
Crossing the pump tubing length that water inlet pipe main valve is connected with water tank, multiple outlet pipelines connected with pump tubing length, on described pump tubing length
Being provided with before pump Hand-operated butterfly valve after Hand-operated butterfly valve, centrifugal pump, check-valves, pump, described water inlet pipe main valve sets on the pipeline of water tank
Being equipped with online COD analyser, online nh 3-n analyser, online COD analyser, online nh 3-n analyser detect former water in real time
COD value and COD/NH3Ratio；Hand-operated butterfly valve, distribution pipe electric butterfly valve, distribution pipe flow amount it is disposed with on described outlet pipeline
Meter, Hand-operated butterfly valve；Being provided with liquid-level switch in described water tank, described liquid-level switch is connected with centrifugal pump；Described online COD analyzes
Instrument, online nh 3-n analyser, distribution pipe electrically operated valve are all coupled by holding wire with described PLC；Described PLC
COD value according to the water stored in the water tank that online COD analyser, online nh 3-n analyser detect and COD/NH3Ratio control
The size of the open degree of distribution pipe electrically operated valve.
Further, the quantity of outlet pipeline is three.
Further, described outlet pipeline being additionally provided with distribution flowmeter for pipe, described distribution flowmeter for pipe passes through signal
Line couples with described PLC, and distribution flowmeter for pipe detects discharge in described outlet pipeline in real time and will detect
Data on flows feeds back to PLC, and described PLC confirms according to described flow information and checks distribution pipe motorized adjustment
Whether the open degree size of butterfly valve meets the assignment of traffic ratio set, and carry out the valve plate open degree of motorized adjustment butterfly valve 11
Accurate adjustment or fine setting, finally realize the distribution ratio of liquid flow that outlet pipe distribution ratio of liquid flow and PLC export and meet.
Further, the water inlet of described centrifugal pump is connected with the rubber hose that is connected by of pipeline.
Further, described centrifugal pump is centrifugal pump of horizontal axis.
The control method of multi-point flux distribution integration apparatus, it is characterised in that comprise the following steps:
(1) online COD analyser, online nh 3-n analyser detect COD value and the COD/NH at the water source in water tank in real time3Ratio
Value, and by the real-time data transmission of detection to PLC；
(2) described PLC according to online COD analyser, online nh 3-n analyser detection water tank in store water
COD value and COD/NH3Ratio, and it is built in the open degree of control strategy control distribution pipe electrically operated valve in PLC
Size
Further, the outlet pipeline of described multi-point flux distribution integration apparatus is three, described in described step (2)
Control strategy be:
Work as COD/NH3When≤3,3 distribution ratio of liquid flows of three outlet pipelines are 55%:35%:10%；
As 3 < COD/NH3When≤5,3 distribution ratio of liquid flows of three outlet pipelines are 40%:40%:20%；
As 5 < COD/NH3Time, 3 distribution ratio of liquid flows of three outlet pipelines are 40%:30%:30%.
Further, the control method of described multi-point flux distribution integration apparatus, it is characterised in that also include following step
Rapid:
(3) the distribution flowmeter for pipe being positioned on outlet pipeline detects the discharge in its outlet pipeline being positioned in real time,
And the data on flows detected is fed back to PLC, described PLC confirms according to described flow information and checks to divide
Whether the open degree size of pipe arrangement motorized adjustment butterfly valve meets assignment of traffic ratio set in step (2), and to electric adjustable
The valve plate open degree of joint butterfly valve 11 carries out accurate adjustment or fine setting, finally realizes the flow that outlet pipe distribution ratio of liquid flow and PLC export and divides
Proportioning meets.
Multi-point flux of the present invention distribution integration apparatus, in industrial water supply processes, same technological design becomes many
Organizing parallel structures or equipment, be directly distributed equally according to by the quantity of water spot by former water, the former water in water tank is through sleeping
Formula centrifugal pump, is delivered to water source different use water spot the most simultaneously；By online COD analyser and online nh 3-n analyser
The water quality of former water is analyzed in detection in real time, and combines PLC and the synergism of distribution pipe motorized adjustment butterfly valve, it is achieved root
According to concrete water quality, the assignment of traffic of each use water spot of equipment automatic control and adjustment.
This equipment can be used for municipal wastewater nitrogen and phosphorus removal processing system, in order to the utilization rate and denitrogenation improving water-inlet carbon source is removed
The effect of phosphorus, former water typically can be assigned to 3 water inlets.The distribution ratio of liquid flow parameter that the present invention proposes is to dividing based on early stage
Duan Jinshui processing performance institute obtains, one be step feed technology process south China and the north different quality in the case of optimal
Influent flow rate distribution ratio experiment draws, two is many sets more medium filter of application, active carbon filter, reverse osmosis in Practical Project
Permeable system, mixed bed averagely supply water and put into practice and obtain.
In sum, this root of hair is according to source quality and uses water spot demand, uses the control mode of feedforward+model+feedback, will
Water source water inlet by setting pro rate as multipoint water feeding, saves substantial amounts of artificial calculating and people by integral intelligent complete set of equipments
Work operates, it is to avoid because Artificial Control throws into question；At the same time it can also be the operation treatment effect under different condition is analyzed
And optimization.
This equipment can design and customize the water pump of conveying, pipe fitting size, hand-operated valve according to the size of the conveying water yield
Size, motorized adjustment butterfly valve size and the integral device base of door and box sizes.Applying in general to carry the water yield is 100-
20000m3The system of/d, and medium and small cities and towns or rural sewage treatment, industrial water supply treatment industry.
Accompanying drawing explanation
Fig. 1 multi-point flux of the present invention distribution integration apparatus device flow chart.
In figure: 1 water tank；2 online COD analysers；3 online nh 3-n analysers；4 water inlet pipe main valves；Before 5 pumps
Hand-operated butterfly valve；Rubber soft joint before 6 pumps；7 centrifugal pump of horizontal axis；Check-valves after 8 pumps；Hand-operated butterfly valve after 9 pumps；10 points
Hand-operated butterfly valve before pipe arrangement；11 distribution pipe motorized adjustment butterfly valves；12 distribution flowmeter for pipe；Hand-operated butterfly valve after 13 distribution pipes；
14 use water spot export pipeline；15 intelligent electric-controlled cabinets；16 bases and tank skirt.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is also
It is not limited to this.
As it is shown in figure 1, multi-point flux of the present invention distribution integration apparatus, including PLC, water tank, at least
One pump tubing length being connected with water tank by water inlet pipe main valve, three outlet pipelines connected with pump tubing length, described pumping
Hand-operated butterfly valve, the water inlet of described centrifugal pump of horizontal axis after Hand-operated butterfly valve, centrifugal pump of horizontal axis, check-valves, pump before pump it is provided with on pipeline
Mouth is connected with the rubber hose that is connected by of pipeline.It is provided with online COD analysis on described water inlet pipe main valve and the pipeline of water tank
Instrument, online nh 3-n analyser, for COD value and the COD/NH of the former water of detection in real time3Ratio.Set successively on described outlet pipeline
It is equipped with Hand-operated butterfly valve, distribution pipe electric butterfly valve, distribution flowmeter for pipe, Hand-operated butterfly valve.Liquid-level switch, institute it is provided with in described water tank
State liquid-level switch to be connected with centrifugal pump of horizontal axis, for controlling the open and close of centrifugal pump of horizontal axis.Described online COD analyser,
Online nh 3-n analyser, distribution pipe electrically operated valve are all coupled by holding wire with described PLC.Online COD analyser,
Line nh 3-n analyser will detect COD value and the COD/NH of former water3Ratio is sent to PLC, described PLC according to
The COD value of the water stored in the water tank of line COD analyser, online nh 3-n analyser detection and COD/NH3Ratio control distribution pipe
The size of the open degree of electrically operated valve.
In the present embodiment, described outlet pipeline being additionally provided with distribution flowmeter for pipe, described distribution flowmeter for pipe is by letter
Number line couples with described PLC, and distribution flowmeter for pipe detects the discharge in described outlet pipeline in real time and will detect
Data on flows feed back to PLC, described PLC according to described flow information confirm and check distribution pipe electric adjustable
Whether the open degree size of joint butterfly valve meets the assignment of traffic ratio set, and distribution pipe electrically operated valve open degree is carried out accurate adjustment
Or fine setting, finally realize the distribution ratio of liquid flow that outlet pipe distribution ratio of liquid flow and PLC export and meet.
Water source through centrifugal pump of horizontal axis, is delivered to different use water spot by the former water in water tank 1 the most simultaneously；Each use
The conveying ratio of water spot is by the water quality according to former water, by on-line monitoring instrument and PLC, comes on adjusting water outlet pipeline
The valve plate open degree size of motorized adjustment butterfly valve 11, obtains the water yield of each water spot with this.
The control method of multi-point flux of the present invention distribution integration apparatus is: online COD analyser, online ammonia nitrogen
Analyser detects COD value and the COD/NH at the water source in water tank in real time3Ratio, and the real-time data transmission of detection is controlled to PLC
Device processed；Described PLC according to online COD analyser, the detection of online nh 3-n analyser water tank in the COD value of water that stores
And COD/NH3Ratio, and it is built in the size that control strategy in PLC controls the open degree of distribution pipe electrically operated valve；
The distribution flowmeter for pipe being positioned on outlet pipeline detects the discharge in its outlet pipeline being positioned in real time, and will detect
Data on flows feeds back to PLC with 4-20mA data re-transmission, described PLC according to described flow information confirm and
Whether the open degree size checking distribution pipe motorized adjustment butterfly valve meets set assignment of traffic ratio, and electronic to distribution pipe
The valve plate open degree of valve carries out accurate adjustment or fine setting, circulates and so forth, finally realizes outlet pipe distribution ratio of liquid flow and exports with PLC
Distribution ratio of liquid flow meet.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, not
In the case of deviating from the flesh and blood of the present invention, any conspicuously improved, the replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (8)
1. multi-point flux distribution integration apparatus, it is characterised in that include PLC, water tank, at least one pass through into
The pump tubing length that water pipe main valve is connected with water tank, multiple outlet pipelines connected with pump tubing length, described pump tubing length is arranged
Having before pump Hand-operated butterfly valve after Hand-operated butterfly valve, centrifugal pump, check-valves, pump, described water inlet pipe main valve is provided with on the pipeline of water tank
Online COD analyser, online nh 3-n analyser, online COD analyser, online nh 3-n analyser detect the COD value of former water in real time
And COD/NH3Ratio；Hand-operated butterfly valve, distribution pipe electric butterfly valve, distribution flowmeter for pipe, hands it is disposed with on described outlet pipeline
Dynamic butterfly valve；Being provided with liquid-level switch in described water tank, described liquid-level switch is connected with centrifugal pump；Described online COD analyser,
Line nh 3-n analyser, distribution pipe electrically operated valve are all coupled by holding wire with described PLC；Described PLC according to
The COD value of the water stored in the water tank that online COD analyser, online nh 3-n analyser detect and COD/NH3Ratio control distributes
The size of the open degree of pipe electrically operated valve.
Multi-point flux the most according to claim 1 distribution integration apparatus, it is characterised in that the quantity of outlet pipeline is three
Individual.
Multi-point flux the most according to claim 1 and 2 distribution integration apparatus, it is characterised in that on described outlet pipeline
Being additionally provided with distribution flowmeter for pipe, described distribution flowmeter for pipe is coupled with described PLC by holding wire, distributes pipe flow amount
Meter detects the discharge in described outlet pipeline in real time and the data on flows detected feeds back to PLC, described PLC
Controller confirms according to described flow information and whether the open degree size of check distribution pipe motorized adjustment butterfly valve meets setting
Assignment of traffic ratio, and distribution pipe electrically operated valve open degree is carried out accurate adjustment or fine setting, finally realize outlet pipe distribution ratio of liquid flow
Meet with the distribution ratio of liquid flow of PLC output.
Multi-point flux the most according to claim 1 distribution integration apparatus, it is characterised in that the water inlet of described centrifugal pump
It is connected with the rubber hose that is connected by of pipeline.
Multi-point flux the most according to claim 1 distribution integration apparatus, it is characterised in that described centrifugal pump be horizontal from
Heart pump.
6. the control method of the multi-point flux distribution integration apparatus described in claim 1, it is characterised in that include following step
Rapid:
(1) online COD analyser, online nh 3-n analyser detect COD value and the COD/NH at the water source in water tank in real time3Ratio, and
By the real-time data transmission of detection to PLC；
(2) described PLC according to online COD analyser, the detection of online nh 3-n analyser water tank in the COD of water that stores
Value and COD/NH3Ratio, and be built in control strategy in PLC and control open degree big of distribution pipe electrically operated valve
Little.
7. the control method of the multi-point flux distribution integration apparatus described in claim 5, it is characterised in that described multi-point flux
The outlet pipeline of distribution integration apparatus is three, and the control strategy described in described step (2) is:
Work as COD/NH3When≤3,3 distribution ratio of liquid flows of three outlet pipelines are 55%:35%:10%；
As 3 < COD/NH3When≤5,3 distribution ratio of liquid flows of three outlet pipelines are 40%:40%:20%；
As 5 < COD/NH3Time, 3 distribution ratio of liquid flows of three outlet pipelines are 40%:30%:30%.
8. described in claim 6 or 7 multi-point flux distribution integration apparatus control method, it is characterised in that also include with
Lower step:
(3) the distribution flowmeter for pipe being positioned on outlet pipeline detects the discharge in its outlet pipeline being positioned in real time, and will
The data on flows detected feeds back to PLC, and described PLC confirms according to described flow information and checks distribution pipe
Whether the open degree size of motorized adjustment butterfly valve meets assignment of traffic ratio set in step (2), and electronic to distribution pipe
The valve plate open degree of valve carries out accurate adjustment or fine setting, finally realizes the distribution ratio of liquid flow of outlet pipe distribution ratio of liquid flow and PLC output
Meet.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610218799 | 2016-04-08 | ||
| CN2016102187990 | 2016-04-08 |
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| Publication Number | Publication Date |
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| CN106249767A true CN106249767A (en) | 2016-12-21 |
| CN106249767B CN106249767B (en) | 2023-05-23 |
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| CN201610583580.0A Active CN106249767B (en) | 2016-04-08 | 2016-07-22 | Multi-point flow distribution integrated equipment and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110745948A (en) * | 2019-09-27 | 2020-02-04 | 中车环境科技有限公司 | Sectional water inlet deep dephosphorization and denitrification process |
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| CN201496578U (en) * | 2009-07-17 | 2010-06-02 | 李治国 | Ratio adjusting valve |
| CN104155928A (en) * | 2014-06-24 | 2014-11-19 | 北京沃洋洲环保装备有限公司 | Operation control method for sewage treatment |
| CN104238527A (en) * | 2014-09-24 | 2014-12-24 | 天津创业环保集团股份有限公司 | Precise control method of sewage treatment plant aeration total quantity |
| CN205121301U (en) * | 2015-11-11 | 2016-03-30 | 苏州市环境保护有限公司 | Sampling of water inlet sewage detects intelligence control system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4872763A (en) * | 1987-05-01 | 1989-10-10 | Fuji Photo Film Co., Ltd. | Method of and apparatus for measuring liquid |
| CN101143750A (en) * | 2007-06-28 | 2008-03-19 | 北京工业大学 | Control device and method for four-section water-feeding A/O technique water-feeding flow rate distribution process |
| CN201496578U (en) * | 2009-07-17 | 2010-06-02 | 李治国 | Ratio adjusting valve |
| CN104155928A (en) * | 2014-06-24 | 2014-11-19 | 北京沃洋洲环保装备有限公司 | Operation control method for sewage treatment |
| CN104238527A (en) * | 2014-09-24 | 2014-12-24 | 天津创业环保集团股份有限公司 | Precise control method of sewage treatment plant aeration total quantity |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110745948A (en) * | 2019-09-27 | 2020-02-04 | 中车环境科技有限公司 | Sectional water inlet deep dephosphorization and denitrification process |
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