CN104360037B - Bivalve double plate is adjustable water quality wavegenerator and using method - Google Patents

Abstract

The present invention discloses the adjustable water quality wavegenerator of a kind of bivalve double plate and using method, belongs to water-treatment technology field.This generator subtracts flow q by low concentration of water Dryweather flow Q water system, low concentration of water ₁water system, high concentration water's matrix flow q water system, high concentration water go bad flow q ₂water system and water quality mixer composition; Low concentration of water Dryweather flow Q water system keeps permanent position water tank level constant, and high concentration water's matrix flow q water system keeps elevated tank liquid level constant, and high concentration water goes bad flow q ₂water system hangs water tank through vacuum brake access, then through rising pipe access water quality mixer, low concentration of water decrement flow q ₁water system is suspended on porous disc through delivery hose endpiece by overflow-type distribution reservoir.The present invention can produce required cycle, amplitude, the rectangle of Dryweather flow and substrate concentration and the continuous fluctuating flow of the sinusoidal water quality of class respectively, for the quantization performance test in modified pond and Optimal Structure Designing provide testing equipment.

Description

Bivalve double plate is adjustable water quality wavegenerator and using method

Technical field:

The invention belongs to water-treatment technology field, be specifically related to a kind of can produce rectangular with the class sine variation water quality current adjustable water quality wavegenerator of bivalve double plate and using method.

Background technology:

In town sewage and Industrial Wastewater Treatment, the water quality the best destroyed in sewage treatment facility between flocculant dosage and pollutant levels that fluctuates widely adds relation, break the balance between microbial metabolism ability and pollutant levels in active sludge and biological membrane, thus reduce the comprehensive effectiveness of sewage treatment plant's treatment facility, cause water outlet to exceed standard, fluctuation causes more greatly treatment effect also more unstable.Coking chemical waste water for strong toxicity difficult degradation often causes the biochemical system several months to be paralysed, severe contamination water body environment.University Of Chongqing's Wang Xiaodans etc. for research object with Chongqing urban wastewater treatment firm influent quality, find that former water COD, SS mass concentration scope is large, are respectively 103 ~ 1074mg/L, 101 ~ 700mg/L; Coking chemical waste water ammonia nitrogen can fluctuate usually between 200 ~ 2200mg/l.This variation water quality on a large scale, the large impact load of generation, brings certain difficulty to the stable operation of sewage treatment plant and management.

Modified pond is that the waste water that certain period concentration is changed mixes with other period waste water, alleviates variation water quality amplitude, thus reduces the pressure to subsequent treatment facility, improves the key pre-service structures for the treatment of effect.Modified pond is as the structures of regulating water quality, and its adjusting function quality will directly affect the treatment effect of subsequent treatment facility.In order to improve regulating effect, people rely on respective engineering experience and theoretic comprehension, devise the modified pond of multiple pool-type structure.But, so far still qualitative stage is rested on to the evaluation of the regulating effect in all kinds of modified pond, lack method for quantitatively evaluating and the checkout equipment of unified science, especially lacking can the variation water quality generator of the general variation water quality Changing Pattern of simulated field, as the essential instrument of modified pond Function detection, thus badly influence quantitatively evaluating and the structure optimization of modified pond regulating effect.

In general, the emission flow of sanitary sewage and industrial waste water and water concentration fluctuation change in time and constantly.Find according to a part of sewage treatment plant inflow water quality continuous detecting data analysis, water quality mutation causes change of water quality curvilinear characteristic close to square wave, and the gradual change of water quality curvilinear characteristic that causes of water quality is close to varies with sinusoidal function.Further analysis finds, the reason of change of water quality can be divided into sudden change and gradual, and sudden change causes due to industrial manufacture process conditional mutation, and gradual is because the control characteristic of process units self causes.Wherein, wastewater flow is constant, and the rectangular and sinusoidal wave situation of change of water quality feature has stronger representativeness.Therefore the present invention with water quality rectangle fluctuation and water quality sinusoidal fluctuation for research object, simulation have real change of water quality feature rectangle fluctuation and sine function fluctuate.But through paper and patent retrieval, do not find the development report of correlation water wavegenerator, market study does not have Related product yet, therefore the present invention designs a kind of variation water quality generator.

Summary of the invention:

The object of the present invention is to provide the adjustable water quality wavegenerator of a kind of bivalve double plate and using method, this generator can effluent quality fluctuation be boxcar function and the dynamic change of sinusoidal wave under the certain prerequisite of generation flow, and fluctuation amplitude, fluctuation mean value and cycle of fluctuation are adjustable, and what the modified effect detection for modified pond provided unification and variety rule enters pond current.

Bivalve double plate provided by the present invention is adjustable, and water quality wavegenerator subtracts flow q by low concentration of water Dryweather flow Q water system, low concentration of water ₁water system, high concentration water's matrix flow q water system, high concentration water go bad flow q ₂water system and water quality commingled system composition.Described each system is specific as follows:

Described low concentration of water Dryweather flow Q water system comprises low concentration of water water supply tank 1, first water pump 2, permanent position water tank 5, first run-down pipe 4, low concentration of water base flow rising pipe 6, overflow-type distribution reservoir 10, described low concentration of water water supply tank 1 is connected with described first water pump 2 the water inlet dashpot led to through the first pressure pipe 3 in described permanent position water tank 5, described first run-down pipe 4 connects described permanent position water tank 5 and leads to described low concentration of water water supply tank 1, in described low concentration of water base flow rising pipe 6, horizontal hard pipe section is arranged with the first ball valve 9, one end of described low concentration of water base flow rising pipe 6 connects described permanent position water tank 5, the other end of described low concentration of water base flow rising pipe 6 connects the reservoir chamber in described overflow-type distribution reservoir 10, the VERTICAL TUBE of described low concentration of water base flow rising pipe 6 is flexible pipe, the interlude of described flexible pipe is connected to the first vacuum brake 7, described first vacuum brake 7 is connected with high dropout regulator 8, described first vacuum brake 7 top perforate communicates with air.

Described low concentration of water subtracts flow q ₁water system comprises overflow chamber's rising pipe 11, first delivery hose 12, first porous disc 16, water quality mixer 35 and described overflow-type distribution reservoir 10; Described overflow-type distribution reservoir 10 is divided into reservoir chamber and overflow chamber by overflow plate, the water inlet of described first delivery hose 12 connects the reservoir chamber of described overflow-type distribution reservoir 10, the first solenoid valve 13 is installed on the top of described first delivery hose 12, the circuit of described first solenoid valve 13 is provided with time controller 34, the water delivering orifice lanyard 14 of described first delivery hose 12 hangs on the second hanging stick 40 of described first porous disc 16, hangs counterweight 15 and access described low concentration of water water supply tank 1 downwards to keep the water delivering orifice of described first delivery hose 12 below described lanyard 14; The water inlet of described overflow chamber rising pipe 11 meets the overflow chamber of described overflow-type distribution reservoir 10, and the water delivering orifice of described overflow chamber rising pipe 11 connects directly over described access water quality mixer 35.

Described high concentration water's matrix flow q water system comprises high concentration water's water supply tank 17, second water pump 18, second pressure pipe 19, second run-down pipe 20, elevated tank 21, base flow rising pipe 23 and described water quality mixer 35; Described high concentration water's water supply tank 17 is connected with described second water pump 18 and is connected through the water inlet dashpot of the second pressure pipe 19 with described elevated tank 21, and described elevated tank 21 takes back described high concentration water's water supply tank 17 through the second run-down pipe 20; The water inlet of described base flow rising pipe 23 connects the bottom of described elevated tank 21, the water delivering orifice of described base flow rising pipe 23 connects directly over described access water quality mixer 35, and described base flow rising pipe 23 is provided with variable valve 25 and spinner-type flowmeter 24 successively along water (flow) direction.

Described high concentration water goes bad flow q ₂water system comprises the second delivery hose 22, second vacuum brake 33, first hanging stick 31, hangs water tank 26, second porous disc 30; The water inlet of described second delivery hose 22 connects the bottom of described elevated tank 21, the second ball valve 42 is provided with the opening and closing of pilot piping in described second delivery hose 22, described second delivery hose 22 is connected with described first hanging stick 31 by the outlet of described second vacuum brake 33, and the water delivering orifice of described second delivery hose 22 inserts in the water inlet dashpot of described suspension water tank 26; Described second vacuum brake 33 is connected with the sleeve pipe 39 on described swing arm 31 around fixed pulley 32 by tightrope 38; The top of described suspension water tank 26 is connected on described swing arm 31; Described first hanging stick 31 is fixed on the second porous disc 30, the water inlet of described 3rd delivery hose 27 connects the bottom of described suspension water tank 26, the water delivering orifice of described 3rd delivery hose 27 is connected to directly over water quality mixer 35, described 3rd delivery hose 27 is provided with the second solenoid valve 29, and on the circuit of described second solenoid valve 29, tie-time controller 34 is periodically to control the unlatching of described second solenoid valve 29 with closed; The water inlet of described overflow hose 28 connects the overflow groove outlet of described suspension water tank 26, and the water delivering orifice of described overflow hose 28 is connected to described high concentration water's water supply tank 17.

Described water quality commingled system comprises water quality mixer 35, modified pond 37 and water quality mixer rising pipe 36; The water inlet of described water quality mixer rising pipe 36 connects described water quality mixer 35, and the water delivering orifice of described water quality mixer rising pipe 36 connects the modified pond 37 be positioned at below described water quality mixer 35.

Described first porous disc 16 is identical with the second porous disc 30 structure, square strengthening steel slab is all equipped with in described first porous disc 16 and the second porous disc 30 front and back panel centre, and disc centre has and is fixed in the rotating shaft of stepper motor 43 with the circular hole of stepper motor 43 rotating shaft equivalent diameter and keyway; Disk evenly has positioning round orifice, be distributed in the different-diameter of disk radially circumferentially, first porous disc 16 and the second porous disc 30 are other installs the first rotation angle scale 41a and the second rotation angle scale 41b respectively, rotation angle scale and porous disc at same plane Nei Qie center scale mark on the horizontal center line of stepper motor 43 rotating shaft.

One of the using method of bivalve double plate provided by the present invention adjustable water quality wavegenerator concrete steps are as follows:

(1) the first water pump 2 is opened, the water of low concentration of water water supply tank 1 is sent into permanent position water tank 5, unnecessary water is back to low concentration of water water supply tank 1 through the first run-down pipe 4, keep permanent position water tank 5 liquid level constant, open the first ball valve 9, supply water through the reservoir chamber of low concentration of water base flow rising pipe 6 to overflow-type distribution reservoir 10, high dropout regulator 8 is utilized to change the discrepancy in elevation of the first vacuum brake 7 and permanent position water tank 5 liquid level, change the size of low concentration of water Dryweather flow Q, the water of overflow-type distribution reservoir 10 reservoir chamber flows into overflow chamber's rising pipe 11 through overflow weir, water inlet matter mixer 35.

(2) the second water pump 18 is opened, the water of high concentration water's water supply tank 17 is sent into elevated tank 21, unnecessary water is back to high concentration water's water supply tank 17 through the second run-down pipe 20, keep elevated tank 21 liquid level constant, change the aperture of variable valve 25, finely tune high concentration water's matrix flow q according to spinner-type flowmeter 24, flow to water quality mixer 35 through base flow rising pipe 23.

(3) open the second ball valve 42, high concentration water flows to through the second delivery hose 22 and hangs water tank 26, keeps constant liquid level through overflow hose 28; Need according to variation water quality amplitude, opening stepper motor 43 respectively drives the first porous disc 16 to drive the first delivery hose 12 and the second porous disc 30 to drive suspension water tank 26 to rotate, when making the first delivery hose 12 and the 3rd delivery hose 27 discharge reach required value, stepper motor 43 stops, and keeps the first delivery hose 12 and the 3rd delivery hose 27 to import and export the discrepancy in elevation constant.

(4) periodic synchronous controls the opening and closing of the first solenoid valve 13 and the second solenoid valve 29, and during unlatching, the flow of the first delivery hose 12 and the 3rd delivery hose 27 is followed successively by q ₁and q ₂and equal, be 0 during valve closes, obtaining water quality mixer 35, to flow out discharge constant, and water quality presses rectangle fluctuation change.

Two concrete steps of the using method of bivalve double plate provided by the present invention adjustable water quality wavegenerator are as follows:

(1) the first water pump 2 is opened, the water of low concentration of water water supply tank 1 is sent into permanent position water tank 5, unnecessary water is back to low concentration of water water supply tank 1 through the first run-down pipe 4, keep permanent position water tank 5 liquid level constant, open the first ball valve 9, supply water through the reservoir chamber of low concentration of water base flow rising pipe 6 to overflow-type distribution reservoir 10, high dropout regulator 8 is utilized to change the discrepancy in elevation of the first vacuum brake 7 and permanent position water tank 5 liquid level, change the size of low concentration of water Dryweather flow Q, the water of overflow-type distribution reservoir 10 reservoir chamber flows into overflow chamber's rising pipe 11 through overflow weir, water inlet matter mixer 35.

(2) the second water pump 18 is opened, the water of high concentration water's water supply tank 17 is sent into elevated tank 21, unnecessary water is back to high concentration water's water supply tank 17 through the second run-down pipe 20, keep elevated tank 21 liquid level constant, change the aperture of variable valve 25, use spinner-type flowmeter 24 to finely tune high concentration water's matrix flow q, flow to water quality mixer 35 through base flow rising pipe 23.

(3) open the second ball valve 42, high concentration water flows to through the second delivery hose 22 and hangs water tank 26, keeps constant liquid level through overflow hose 28; According to variation water quality amplitude needs, first hanging stick 31 and the second hanging stick 40 are fixed on apart from the positioning round orifice of porous disc center same radius R, start stepper motor 43 and drive the first porous disc 16 and the second porous disc 30 respectively, arrive the position of the first rotation angle scale 41a and the second rotation angle scale 41b center scale mark respectively to the first hanging stick 31 and the second hanging stick 40 after, stop stepper motor 43.

(4) frequency converter 44 parameter is set according to cycle T, keep the first solenoid valve 13 and the second solenoid valve 29 in opening, reopen stepper motor 43, the first porous disc 16 is driven to drive the first delivery hose 12 water delivering orifice to do uniform circular motion, drive the second porous disc 30 to drive suspension water tank 26 to do uniform circular motion, the flow of the first delivery hose 12 and the 3rd delivery hose 27 is followed successively by q ₁and q ₂the dynamic change in sinusoidal wave and equal, obtains the sinusoidal variation water quality current of class of required cycle, amplitude, Dryweather flow and substrate concentration through water quality mixer 35.

It is c that device designed by the present invention comprises adjustable concentration ₁low concentration of water Dryweather flow Q, concentration be c ₁low concentration of water subtract flow q ₁, concentration is c ₂high concentration water's matrix flow q and concentration be c ₂high concentration water to go bad flow q ₂, after the mixing of water quality mixer, obtain required rectangle or sinusoidal wave moves change of water quality water yield stream.

Constant adjustable in order to realize mixing rear water flow, and change of water quality curve to be rectangle and class sinusoidal, therefore after low concentration of water Dryweather flow Q (also can adopt clear water) water system, set up low concentration of water subtract flow q ₁water system, to go bad flow q to cut down high concentration water ₂allocate the impact of water quality mixer on water outlet total flow into, the present invention designs the mode adopted with the porous disc of diameter synchronous rotary, before low concentration of water Dryweather flow (also can adopt clear water) Q enters mixer, carry out shunting decrement, keeps q ₁=q ₂, and to the pollutant in high concentration water without decrement effect.Flow after decrement is (Q-q ₁) low concentration of water and high concentration water's matrix flow q, high concentration water to go bad flow q ₂modified pond is inputted through rising pipe after water quality mixer fully mixes.

According to conservation of matter principle, the amount of water quality mixer turnover water pollutant is equal, then following formula is set up:

C·[(Q-q ₁)+(q+q ₂)]＝c ₁·(Q-q ₁)+c ₂·(q+q ₂)(1)

Can obtain water quality mixer aqueous concentration through arrangement is:

$C=\frac{c_1\·Q+c_2\·q+(c_2-c_1)\·q_1}{Q+q}---\left(2\right)$

In formula:

C---water quality mixer water delivering orifice aqueous concentration;

Q---low concentration of water Dryweather flow;

Q---high concentration water's matrix flow;

Q ₁---low concentration of water decrement flow;

Q ₂---high concentration water goes bad flow;

C ₁---low concentration of water concentration;

C ₂---high concentration water's concentration.

(1) rectangle fluctuation change of water quality generation principle of work:

According to permanent position water tank in Fig. 1, low concentration of water Dryweather flow Q water system by continuing to supply water and overflow maintenance constant liquid level, through base flow rising pipe with concentration c ₁, flow Q is to the reservoir chamber water delivery of overflow-type distribution reservoir; High concentration water goes bad flow q ₂in water system, high-order dense water tank is by continuing to supply water and overflow maintenance constant liquid level, flows out water pipe with concentration c through matrix ₂, flow q ₂supply water to water quality mixer, the angle of porous disc is regulated to make the liquid level difference between the liquid level of overflow-type distribution reservoir and the water delivering orifice of delivery hose and to hang liquid level difference between water tank level with suspension water tank delivery hose water delivering orifice equal and meet the requirement of mixer aqueous concentration fluctuating range, by the opening and closing of periodicity Controlling solenoid valve, control fluctuation cycle T, first realize low concentration of water decrement flow q ₁, high concentration water goes bad flow q ₂rectangular fluctuation; Low concentration of water subtracts flow q ₁water system carries out shunting decrement q before entering water quality mixer to low concentration of water Dryweather flow Q ₁, to go bad flow q to cut down high concentration water ₂allocate the impact of water quality mixer on total flow into, after substitution formula (2) obtains water quality mixer, aqueous concentration is

$C=\left\{\begin{array}{cc}\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q},& \sin \left(\mathrm{\&omega;}t\right)\&GreaterEqual;0\\ \frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1,& \sin \left(\mathrm{\&omega;}t\right)<0\end{array}\right.---\left(3\right)$

T in formula---working time;

ω---angular frequency.

From above formula, the large I of its value is before testing by regulating Q, q, c ₁, c ₂change, keep constant in testing process, represent square wave valley; keep constant in testing process, represent square wave peak value; $C_0=\frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{(c_2-c_1)}{Q+q}\&CenterDot;q_1\&rsqb;$ Represent fluctuation mean value; $C_1=\frac{1}{2}\&CenterDot;\frac{(c_2-c_1)}{Q+q}\&CenterDot;q_1$ Represent concentration change amplitude, then (3) formula can be expressed as following formula again:

$\begin{array}{c}C=\left\{\begin{array}{c}{C}_0+C_1\\ C_0-C_1\end{array}\right.\\ =\left\{\begin{array}{cc}\frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1\&rsqb;+\frac{1}{2}\&CenterDot;\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1,& \sin \left(\mathrm{\&omega;}t\right)\&GreaterEqual;0\\ \frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1\&rsqb;-\frac{1}{2}\&CenterDot;\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1,& \sin \left(\mathrm{\&omega;}t\right)<0\end{array}\right.\end{array}---\left(4\right)$

Formula (4) shows that the index concentration of water quality mixer effluent quality is that t is in time with the mean value that fluctuates $C_0=\frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{(c_2-c_1)}{Q+q}\&CenterDot;q_1\&rsqb;,$ Fluctuation amplitude is $C_1=\frac{1}{2}\&CenterDot;\frac{(c_2-c_1)}{Q+q}\&CenterDot;q_1,$ Cycle of fluctuation is $T=\frac{2\mathrm{\&pi;}}{\mathrm{\&omega;}}$ Rectangle fluctuation change function.

(2) sinusoidal wave moves change of water quality generation principle of work:

See Fig. 1, Fig. 2, in low concentration of water Dryweather flow Q water system, permanent position water tank is by continuing to supply water and overflow maintenance constant liquid level, through base flow rising pipe with concentration c ₁, flow Q is to the reservoir chamber water delivery of overflow-type distribution reservoir; High concentration water goes bad flow q ₂in water system, high-order dense water tank is by continuing to supply water and overflow maintenance constant liquid level, flows out water pipe with concentration c through matrix ₂, flow q ₂supply water to water quality mixer, porous disc is regulated to make the center graduation position of hanging stick rotation to rotation angle scale of suspension overflow-type distribution reservoir delivery hose respectively, the hanging stick of suspension water tank is rotated to the center graduation position of rotation angle scale, leaves standstill decelerator, and radius of turn R meets the requirement of mixer aqueous concentration fluctuating range, solenoid valve is kept to be opening.

First flow q is subtracted to low concentration of water ₁in water system, to carry out theory calculate as follows for the flow of delivery hose water delivering orifice:

The constant liquid level of overflow-type distribution reservoir, the water delivering orifice of delivery hose is driven by porous disc and does uniform circular motion, then the liquid level difference between the liquid level of overflow-type distribution reservoir and the water delivering orifice of delivery hose be sinusoidal variations, and foundation short tube goes out flow type then the water flow of delivery hose is:

$q_1={\mathrm{\&mu;}}_1{A}_1\sqrt{2g(h_1+h_1^{\&prime;}+R\&CenterDot;sin\mathrm{\&theta;})}---\left(5\right)$

In formula: μ ₁a ₁---penstock characteristic constant;

H ₁---the discrepancy in elevation of the liquid level distance decelerator spindle central of overflow-type distribution reservoir;

H ₁'---lanyard length;

The water delivering orifice anglec of rotation of θ---delivery hose, ω=2 π n, for initial phase, n is the rotating speed of decelerator; T is working time;

The radius of turn of the water delivering orifice of R---delivery hose.

Then that a flow is changed to sinusoidal function in time.

Secondly, high concentration water goes bad flow q ₂the flow rate calculation formula hanging water tank delivery hose water delivering orifice in water system is as follows:

When suspension water tank level is constant, hang water tank delivery hose water delivering orifice and be fixed on water quality mixer, suspension water tank is driven to do uniform circular motion by porous disc, the liquid level difference then hung between water tank level and suspension water tank delivery hose water delivering orifice is sinusoidal variations, then the water flow hanging water tank delivery hose water delivering orifice is:

$q_2={\mathrm{\&mu;}}_2{A}_2\sqrt{2g\&lsqb;(h_2+h_2^{\&prime;\&prime;})+h_2^{\&prime;}+R\&CenterDot;sin\mathrm{\&theta;}\&rsqb;}---\left(6\right)$

μ in formula ₂a ₂---penstock characteristic constant;

H ₂---when hanging water tank minimum liquid level, hang the discrepancy in elevation of water tank level apart from water delivering orifice;

H ' ₂---hang tank bracket top apart from the discrepancy in elevation hanging water tank level;

H " ₂---when hanging water tank minimum liquid level, the distance of center circle hanging water tank level track circumference hangs the discrepancy in elevation on tank bracket top;

The water delivering orifice anglec of rotation of θ---delivery hose, ω=2 π n, for initial phase, n is the rotating speed of decelerator; T is rotational time;

R---hang the radius of turn of water tank level.

Then that a flow is changed to sinusoidal function in time.

Control design case parameter, the first delivery hose 12 and the 3rd delivery hose 27 adopt the solenoid valve of identical material, caliber, installation equivalent specifications, make μ A=μ ₁a ₁=μ ₂a ₂; Control design case absolute altitude, makes h=h ₁=h ₂+ h " ₂; The stent length of adjustment rope length and suspension water tank, makes l=h ' ₁=h ' ₂; The radius of turn of the water delivering orifice of adjustment overflow chamber delivery hose is identical with the radius of turn hanging water tank; Control converter parameter, the cycle is so have

Finally, flow q is subtracted through low concentration of water ₁water system subtracts after flow low concentration of water Dryweather flow Q with concentration c ₁, flow Q-q ₁, high concentration water is with concentration c ₂, matrix flow q, rotten flow q ₂enter the mixing of water quality mixer, obtaining water quality mixer 35 water delivering orifice aqueous concentration after formula (7) being substituted into the arrangement of formula (2) abbreviation is:

From above formula, keep constant in testing process; keep constant in testing process.

Because correlation parameter Q, the q in above formula can utilize institute's metal conduit liquid level difference configured in advance to regulate, concentration c ₁, c ₂large I configured in advance, therefore the adjustable of generator water delivering orifice flow and water quality can be realized.Adopt porous disc to drive water delivering orifice or water supply liquid level to do uniform circular motion in the present invention, make the liquid level difference between supply tank liquid level and water delivering orifice change in standard sine, water delivering orifice flow known according to mathematical analysis, this function still has the feature of obvious sine function.Through theory calculate and verification experimental verification, water flow q ₁0.4% ~ 2.4% is respectively, water flow q with the stripped deviation of standard sine function ₁be 4.4% ~ 9.8% with test figure deviation, modified pond functional evaluation testing requirements in engineering can be met, due to the non-standard sine of the water quality mixer aqueous concentration curve of cyclical fluctuations, there is obvious sine function fluctuation characteristic, therefore be called class sinusoidal variations.The then water quality mixer 35 water delivering orifice aqueous concentration dynamic change in sinusoidal wave in time.

Analyzed from above formula, change the size of low concentration of water Dryweather flow Q and the size of high concentration water's matrix flow q, the numerical values recited that effluent quality concentration sinusoidal wave moves mean value can be changed; Change the size of the radius R of circular motion, change oscillating flow q ₁fluctuation amplitude, and then realize the fluctuation amplitude of effluent quality; Change the cycle T of circular motion, T cycle of fluctuation of effluent quality can be changed.

The invention provides and a kind ofly can produce the dynamic bivalve double plate adjustable oscillation generator of water quality rectangle, sinusoidal wave, utilize the equivalent reduction effect of bivalve double plate, keep water flow to be stabilized in setting value constant, realize the rectangular ripple of water quality, the dynamic change of sinusoidal wave; By the proportioning hybrid mode of two kinds of variable concentrations water and different methods of operating and adjust design parameters, realize effluent quality rectangle and sinusoidal wave moves amplitude, fluctuation mean value, cycle of fluctuation is adjustable; Drive water delivering orifice or distribution reservoir liquid level to do uniform circular motion by the opening and closing of periodicity Controlling solenoid valve and porous disc, realize water quality mixer effluent quality curve of cyclical fluctuations continuous and derivable; In teaching, short tube is gone out stream, circular motion, electrical equipment control scheduling theory knowledge and practice and well combine.

Accompanying drawing illustrates:

Fig. 1 is bivalve double plate of the present invention adjustable water quality wavegenerator system architecture schematic diagram;

Fig. 2 is the sinusoidal fundamental diagram of bivalve double plate of the present invention adjustable water quality wavegenerator class;

Fig. 3 hangs water tank hang schematic diagram in the present invention.

In figure: 1-low concentration of water water supply tank, 2-first water pump, 3-first pressure pipe, 4-first run-down pipe, 5-permanent position water tank, 6-low concentration of water base flow rising pipe, 7-first vacuum brake, 8-height dropout regulator, 9-first ball valve, 10-overflow-type distribution reservoir, 11-overflow chamber rising pipe, 12-first delivery hose, 13-first solenoid valve, 14-lanyard, 15-counterweight, 16-first porous disc, 17-high concentration water water supply tank, 18-second water pump, 19-second pressure pipe, 20-second run-down pipe, 21-elevated tank, 22-second delivery hose, 23-base flow rising pipe, 24-spinner-type flowmeter, 25-variable valve, 26-hangs water tank, 27-the 3rd delivery hose, 28-overflow hose, 29-second solenoid valve, 30-second porous disc, 31-first hanging stick, 32-fixed pulley, 33-second vacuum brake, 34-time controller, 35-water quality mixer, 36-water quality mixer rising pipe, the modified pond of 37-, 38-tightrope, 39-sleeve pipe, 40-second hanging stick, 41a-first rotation angle scale, 41b-second rotation angle scale, 42-second ball valve, 43-stepper motor, 44-frequency converter.

Embodiment:

The specific embodiment of the present invention is further illustrated below in conjunction with accompanying drawing:

One, bivalve double plate adjustable water quality wavegenerator device is constructed as follows:

Low concentration of water Dryweather flow Q water system, by low concentration of water water supply tank 1 and the connected water inlet dashpot being connected permanent position water tank 5 through the first pressure pipe 3 of the first water pump 2, permanent position water tank 5 takes back low concentration of water water supply tank 1 through the first run-down pipe 4, permanent water tank 5 bottom, position has low concentration of water base flow rising pipe 6, the horizontal pipeline section of low concentration of water base flow rising pipe 6 installs the first ball valve 9, VERTICAL TUBE flexible pipe and outlet connects the reservoir chamber of overflow-type distribution reservoir 10, interlude is connected to the first vacuum brake 7, first vacuum brake 7 is connected with high dropout regulator 8, first vacuum brake 7 top perforate communicates with air, the water delivering orifice flow Q of low concentration of water base flow rising pipe 6 is determined by the discrepancy in elevation between permanent position water tank 5 and the first vacuum brake 7, the height of the first vacuum brake 7 is changed by high dropout regulator 8, change low concentration of water base flow flow Q, permanent position water tank 5 is supplied water to overflow-type distribution reservoir 10 reservoir chamber with flow Q by low concentration of water base flow rising pipe 6.

Low concentration of water subtracts flow q ₁water system, reservoir chamber and overflow chamber is divided into by overflow plate by overflow-type distribution reservoir 10, reservoir chamber bottom is connected on the first delivery hose 12 and installs the first solenoid valve 13, set-up time controller 34 on the circuit of the first solenoid valve 13, first delivery hose 12 outlet lanyard 14 hang on the first porous disc 16 with on the second hanging stick 40 of the corresponding circular hole of the second porous disc 30, hanging counterweight 15 below lanyard 14 keeps water delivering orifice to access low concentration of water water supply tank 1 downwards, and overflow chamber's rising pipe 11 accesses directly over water quality mixer 35; Stop stepper motor 43, periodically control the opening and closing of the first solenoid valve 13, the rectangular fluctuation change of water delivering orifice flow of the first delivery hose 12, then reservoir chamber is to overflow chamber's overflow, through overflow chamber's rising pipe 11, low concentration of water is inputted water quality mixer 35; Start stepper motor 43, the liquid level difference between the water delivering orifice of overflow-type distribution reservoir 10 reservoir chamber and the first delivery hose 12 is sinusoidal variations, and water delivering orifice flow is sinusoidal wave change, through overflow chamber's rising pipe 11, low concentration of water is inputted water quality mixer 35.

High concentration water's matrix flow q water system, to be connected with the second water pump 18 by high concentration water's water supply tank 17 and to be connected with the water inlet dashpot of elevated tank 21 through the second pressure pipe 19, elevated tank 21 takes back high concentration water's water supply tank 17 through the second run-down pipe 20, and elevated tank 21 bottom is connected with base flow rising pipe 23; Base flow rising pipe 23 installs variable valve 25 and spinner-type flowmeter 24 and outlet is connected to directly over water quality mixer 35 successively along water (flow) direction; Base flow rising pipe 23 supplies water to water quality mixer 35 with flow q, and by the reading of spinner-type flowmeter 24, the aperture of regulating and controlling valve 25, can regulate the size of high concentration water's matrix flow q.

High concentration water goes bad flow q ₂water system, being connected with the second delivery hose 22 to export to be connected to insert with the first hanging stick 31 through the second vacuum brake 33 by elevated tank 21 bottom hangs in the water inlet dashpot of water tank 26, and the second vacuum brake 33 is connected with the first hanging stick 31 around fixed pulley 32 by tightrope 38; Hanging water tank 26 top is connected on the first hanging stick 31, bottom the 3rd delivery hose 27 is connected to directly over water quality mixer 35, on the circuit that 3rd delivery hose 27 is provided with the second solenoid valve 29, second solenoid valve 29, tie-time controller 34 periodically controls the opening and closing of the second solenoid valve 29; Overflow hose 28 connects the outlet of suspension water tank 26 overflow groove, is connected to high concentration water's water supply tank 17; Elevated tank 21 is determined to the water supply flow hanging water tank 26 by the liquid level of elevated tank 21 and the discrepancy in elevation of the second vacuum brake 33, when suspension water tank 26 is by the rotation that hoists bottom the second porous disc 30, hang water tank 26 to increase gradually apart from the 3rd delivery hose 27 water delivering orifice distance, water flow increases, and through fixed pulley 32, in suspension water tank 26 uphill process, second vacuum brake 33 declines gradually, then the liquid level of elevated tank 21 and the discrepancy in elevation of the second vacuum brake 33 increase gradually, and water supply flow also increases gradually; Otherwise, when suspension water tank 26 is rotated to lower by the second porous disc 30 eminence, 3rd delivery hose 27 water flow reduces, second vacuum brake 33 is drawn by tightrope 38 and rises gradually, the liquid level of elevated tank 21 and the discrepancy in elevation of the second vacuum brake 33 reduce gradually, and water supply flow also reduces gradually.Therefore this device moves Changing Pattern for suspension water tank 26 water flow sinusoidal wave, realize elevated tank 21 and supply water to suspension water tank 26 with the rule increasing gradually, reduce gradually, reduce to hang water tank 26 further and to supply water the problem of liquid fluctuating to water outlet disturbance.

Stop stepper motor 43, second solenoid valve 29 periodically to control the opening and closing of the 3rd delivery hose 27, high concentration water is inputted water quality mixer 35, open stepper motor 43, the second porous disc 30 is driven to drive suspension water tank 26 to do uniform circular motion, 3rd delivery hose 27 water delivering orifice is fixed on water quality mixer 35, the liquid level difference then hanging water tank 26 liquid level and the 3rd delivery hose 27 water delivering orifice is sinusoidal variations, dense water is inputted water quality mixer 35 with class sinusoidal flow by the 3rd delivery hose 27 water delivering orifice, the positioning round orifice that water tank is fixed on distance the second porous disc 30 center different distance is hung by regulating, fluctuation amplitude can be regulated, by the rotating speed regulating frequency converter 44 to change stepper motor 43, cycle of fluctuation can be regulated.

Water quality commingled system comprises water quality mixer 35, modified pond 37 and water quality mixer rising pipe 36; The water inlet water receiving matter mixer 35 of water quality mixer rising pipe 36, the water delivering orifice of water quality mixer rising pipe 36 connects the modified pond 37 be positioned at below water quality mixer 35.Stop stepper motor 43, time controller 34 periodically controls the opening and closing of the first solenoid valve 13 and the second solenoid valve 29, the then low concentration of water of overflow chamber's rising pipe 11, the high concentration water of base flow rising pipe 23, the high concentration water of the 3rd delivery hose 27 mixes at water quality mixer 35, then water quality mixer rising pipe 36 is with constant rate Q+q, and concentration is

$C=\left\{\begin{array}{cc}\frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1\&rsqb;+\frac{1}{2}\&CenterDot;\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1,& \sin \left(\mathrm{\&omega;}t\right)\&GreaterEqual;0\\ \frac{1}{2}\&lsqb;\frac{c_1\&CenterDot;Q+c_2\&CenterDot;q}{Q+q}+\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1\&rsqb;-\frac{1}{2}\&CenterDot;\frac{\left(c_2-c_1\right)}{Q+q}\&CenterDot;q_1,& \sin \left(\mathrm{\&omega;}t\right)<0\end{array}\right.,$

Concentration curve is the modified pond 37 of rectangular fluctuation change input in time.

Start stepper motor 43, keep the first solenoid valve 13 and the second solenoid valve 29 in opening, then overflow chamber's rising pipe 11 take concentration as c ₁, flow low concentration of water, base flow rising pipe 23 take concentration as c ₂, flow q high concentration water, the 3rd delivery hose 27 take concentration as c ₂, flow high concentration water mix at water quality mixer 35, then water quality mixer rising pipe 36 is with constant rate Q+q, and concentration is

T is that mixed water is inputted modified pond 37 by the dynamic change of sinusoidal wave in time.

Two, bivalve double plate adjustable water quality wavegenerator operation steps is as follows:

1, the method for operating step producing the change current of water quality rectangle fluctuation is as follows:

(1) the first water pump 2 is opened, the water of low concentration of water water supply tank 1 is sent into permanent position water tank 5, unnecessary water is back to low concentration of water water supply tank 1 through the first run-down pipe 4, keep permanent position water tank 5 liquid level constant, open the first ball valve 9, supply water through the reservoir chamber of low concentration of water base flow rising pipe 6 to overflow-type distribution reservoir 10, high dropout regulator 8 is utilized to change the discrepancy in elevation of the first vacuum brake 7 and permanent position water tank 5 liquid level, change the size of low concentration of water Dryweather flow Q, the water of overflow-type distribution reservoir 10 reservoir chamber flows into overflow chamber's rising pipe 11 through overflow weir, water inlet matter mixer 35.

(2) the second water pump 18 is opened, the water of high concentration water's water supply tank 17 is sent into elevated tank 21, unnecessary water is back to high concentration water's water supply tank 17 through the second run-down pipe 20, keep elevated tank 21 liquid level constant, change the aperture of variable valve 25, finely tune high concentration water's matrix flow q according to spinner-type flowmeter 24, flow to water quality mixer 35 through base flow rising pipe 23.

(3) open the second ball valve 42, high concentration water flows to through the second delivery hose 22 and hangs water tank 26, keeps constant liquid level through overflow hose 28; Need according to variation water quality amplitude, opening stepper motor 43 respectively drives the first porous disc 16 to drive the first delivery hose 12 and the second porous disc 30 to drive suspension water tank 26 to rotate, when making the first delivery hose 12 and the 3rd delivery hose 27 discharge reach required value, stepper motor 43 stops, and keeps the first delivery hose 12 and the 3rd delivery hose 27 to import and export the discrepancy in elevation constant.

(4) periodic synchronous controls the opening and closing of the first solenoid valve 13 and the second solenoid valve 29, and during unlatching, the flow of the first delivery hose 12 and the 3rd delivery hose 27 is followed successively by q ₁and q ₂and equal, be 0 during valve closes, obtaining water quality mixer 35, to flow out discharge constant, and water quality presses rectangle fluctuation change.

(5) by the aperture of regulating and controlling valve 25, regulate the size of high concentration water's matrix flow q, fluctuation mean value can be changed; By the liquid level difference of the overflow chamber's liquid level with the first delivery hose 12 water delivering orifice that regulate overflow-type distribution reservoir 10 and the liquid level difference regulating liquid level and the 3rd delivery hose 27 water delivering orifice hanging water tank 26, adjust length h ' 1 and the suspension water tank 26 stent length h ' of lanyard 14 ₂, change q ₁and q ₂size, can fluctuation amplitude be regulated; By regulating high dropout regulator 8 to change liquid level difference between permanent position water tank 5 and the first vacuum brake 7, changing the size of low concentration of water Dryweather flow Q, the water supply needs in the modified pond of different pool-type structure can be met.

2, the method for operating step producing the change current that water quality sinusoidal wave moves is as follows:

(1) the first water pump 2 is opened, the water of low concentration of water water supply tank 1 is sent into permanent position water tank 5, unnecessary water is back to low concentration of water water supply tank 1 through the first run-down pipe 4, keep permanent position water tank 5 liquid level constant, open the first ball valve 9, supply water through the reservoir chamber of rising pipe 6 to overflow-type distribution reservoir 10, high dropout regulator 8 is utilized to change the discrepancy in elevation of the first vacuum brake 7 and permanent position water tank 5 liquid level, change the size of low concentration of water Dryweather flow Q, the water of overflow-type distribution reservoir 10 reservoir chamber flows into overflow chamber's rising pipe 11 through overflow weir, water inlet matter mixer 35.

(2) the second water pump 18 is opened, the water of high concentration water's water supply tank 17 is sent into elevated tank 21, unnecessary water is back to high concentration water's water supply tank 17 through the second run-down pipe 20, keep elevated tank 21 liquid level constant, change the aperture of variable valve 25, finely tune high concentration water's matrix flow q according to spinner-type flowmeter 24, flow to water quality mixer 35 through base flow rising pipe 23.

(3) open the second ball valve 42, high concentration water flows to through the second delivery hose 22 and hangs water tank 26, keeps constant liquid level through overflow hose 28; According to variation water quality amplitude needs, first hanging stick 31 and the second hanging stick 40 are fixed on apart from the positioning round orifice of porous disc center same radius R, start stepper motor 43 and drive the first porous disc 16 and the second porous disc 30 respectively, arrive the position of the first rotation angle scale 41a and the second rotation angle scale 41b center scale mark respectively to the first hanging stick 31 and the second hanging stick 40 after, stop stepper motor 43.

(4) frequency converter 44 parameter is set according to cycle T, keep the first solenoid valve 13 and the second solenoid valve 29 in opening, reopen stepper motor 43, the first porous disc 16 is driven to drive the first delivery hose 12 water delivering orifice to do uniform circular motion, drive the second porous disc 30 to drive suspension water tank 26 to do uniform circular motion, the flow of the first delivery hose 12 and the 3rd delivery hose 27 is followed successively by q ₁and q ₂the dynamic change in sinusoidal wave and equal, obtains the sinusoidal variation water quality current of class of required cycle, amplitude, Dryweather flow and substrate concentration through water quality mixer 35.

(5) by the aperture of regulating and controlling valve 25, regulate the size of high concentration water's matrix flow q, fluctuation mean value can be changed; By changing the radius R size of circular motion or adjusting the length h ' of lanyard 14 ₁with suspension water tank 26 stent length h ' ₂, change oscillating flow q ₁fluctuation amplitude, and then the fluctuation amplitude realizing effluent quality is adjustable; Changed the cycle of circular motion by frequency converter 44, T cycle of fluctuation of effluent quality can be changed; By regulating high dropout regulator 8 to change liquid level difference between permanent position water tank 5 and the first vacuum brake 7, changing the size of low concentration of water Dryweather flow Q, the water supply needs in the modified pond of different pool-type structure can be met.

Claims (4)

1. the adjustable water quality wavegenerator of bivalve double plate, is characterized in that this generator subtracts flow q by low concentration of water Dryweather flow Q water system, low concentration of water ₁water system, high concentration water's matrix flow q water system, high concentration water go bad flow q ₂water system and water quality commingled system composition, described low concentration of water Dryweather flow Q water system comprises low concentration of water water supply tank (1), the first water pump (2), permanent position water tank (5), the first run-down pipe (4), low concentration of water base flow rising pipe (6), overflow-type distribution reservoir (10), described low concentration of water water supply tank (1) is connected with described first water pump (2) the water inlet dashpot led to through the first pressure pipe (3) in described permanent position water tank (5), described first run-down pipe (4) connects described permanent position water tank (5) and leads to described low concentration of water water supply tank (1), in described low concentration of water base flow rising pipe (6), horizontal hard pipe section is arranged with the first ball valve (9), one end of described low concentration of water base flow rising pipe (6) connects described permanent position water tank (5), the other end of described low concentration of water base flow rising pipe (6) connects the reservoir chamber in described overflow-type distribution reservoir (10), the VERTICAL TUBE of described low concentration of water base flow rising pipe (6) is flexible pipe, the interlude of described flexible pipe is connected to the first vacuum brake (7), described first vacuum brake (7) is connected with high dropout regulator (8), the top perforate of described first vacuum brake (7) communicates with air, described low concentration of water subtracts flow q ₁water system comprises overflow chamber's rising pipe (11), the first delivery hose (12), the first porous disc (16), water quality mixer (35) and described overflow-type distribution reservoir (10), described overflow-type distribution reservoir (10) is divided into reservoir chamber and overflow chamber by overflow plate, the water inlet of described first delivery hose (12) connects the reservoir chamber of described overflow-type distribution reservoir (10), the first solenoid valve (13) is installed on the top of described first delivery hose (12), the circuit of described first solenoid valve (13) is provided with time controller (34), the water delivering orifice lanyard (14) of described first delivery hose (12) hangs on second hanging stick (40) of the first porous disc (16), described lanyard (14) below hangs counterweight (15) and accesses described low concentration of water water supply tank (1) downwards to keep the water delivering orifice of described first delivery hose (12), the water inlet of described overflow chamber rising pipe (11) meets the overflow chamber of described overflow-type distribution reservoir (10), and the water delivering orifice of described overflow chamber rising pipe (11) connects directly over described water quality mixer (35), described high concentration water's matrix flow q water system comprises high concentration water's water supply tank (17), the second water pump (18), the second pressure pipe (19), the second run-down pipe (20), elevated tank (21), base flow rising pipe (23) and described water quality mixer (35), described high concentration water's water supply tank (17) is connected with described second water pump (18) and is connected through the water inlet dashpot of the second pressure pipe (19) with described elevated tank (21), and described elevated tank (21) takes back described high concentration water's water supply tank (17) through the second run-down pipe (20), the water inlet of described base flow rising pipe (23) connects the bottom of described elevated tank (21), the water delivering orifice of described base flow rising pipe (23) connects directly over described water quality mixer (35), and described base flow rising pipe (23) is provided with variable valve (25) and spinner-type flowmeter (24) successively along water (flow) direction, described high concentration water goes bad flow q ₂water system comprises the second delivery hose (22), the second vacuum brake (33), the first hanging stick (31), hangs water tank (26), the second porous disc (30), the water inlet of described second delivery hose (22) connects the bottom of described elevated tank (21), the second ball valve (42) is provided with the opening and closing of pilot piping in described second delivery hose (22), described second delivery hose (22) is connected with described first hanging stick (31) by the outlet of described second vacuum brake (33), and the water delivering orifice of described second delivery hose (22) inserts in the water inlet dashpot of described suspension water tank (26), described second vacuum brake (33) is connected with the sleeve pipe (39) on described first hanging stick (31) around fixed pulley (32) by tightrope (38), the top of described suspension water tank (26) is connected on described first hanging stick (31), described first hanging stick (31) is fixed on described second porous disc (30), the water inlet of the 3rd delivery hose (27) connects the bottom of described suspension water tank (26), the water delivering orifice of described 3rd delivery hose (27) is connected to directly over water quality mixer (35), described 3rd delivery hose (27) is provided with the second solenoid valve (29), and on the circuit of described second solenoid valve (29), tie-time controller (34) is periodically to control the unlatching of described second solenoid valve (29) with closed, the water inlet of overflow hose (28) connects the overflow groove outlet of described suspension water tank (26), and the water delivering orifice of described overflow hose (28) is connected to described high concentration water's water supply tank (17), described water quality commingled system comprises water quality mixer (35), modified pond (37) and water quality mixer rising pipe (36), the water inlet of described water quality mixer rising pipe (36) connects described water quality mixer (35), and the water delivering orifice of described water quality mixer rising pipe (36) connects the described modified pond (37) being positioned at described water quality mixer (35) below.

2. the adjustable water quality wavegenerator of bivalve double plate according to claim 1, it is characterized in that described first porous disc (16) is identical with the second porous disc (30) structure, described first porous disc (16) is all equipped with square strengthening steel slab with the front and back panel centre of described second porous disc (30), disc centre has and the circular hole of stepper motor (43) rotating shaft equivalent diameter and keyway, and disk is fixed in the rotating shaft of stepper motor (43); Disk evenly has positioning round orifice, be distributed in the different-diameter of disk radially circumferentially, described first porous disc (16) is other is provided with the first rotation angle scale (41a), simultaneously described second porous disc (30) is other is provided with the second rotation angle scale (41b), described first rotation angle scale (41a) and the second rotation angle scale (41b) and porous disc at same plane Nei Qie center scale mark on the horizontal center line of stepper motor (43) rotating shaft.

3. the using method of the adjustable water quality wavegenerator of bivalve double plate described in claim 1, is characterized in that described method concrete steps are as follows:

(1) described first water pump (2) is opened, the water of described low concentration of water water supply tank (1) is sent into described permanent position water tank (5), unnecessary water is back to described low concentration of water water supply tank (1) through described first run-down pipe (4), keep described permanent position water tank (5) liquid level constant, open described first ball valve (9), supply water through the reservoir chamber of described low concentration of water base flow rising pipe (6) to described overflow-type distribution reservoir (10), described high dropout regulator (8) is utilized to change the discrepancy in elevation of described first vacuum brake (7) and described permanent position water tank (5) liquid level, change the size of low concentration of water Dryweather flow Q, the water of described overflow-type distribution reservoir (10) reservoir chamber flows into described overflow chamber rising pipe (11) through overflow weir, enter described water quality mixer (35),

(2) described second water pump (18) is opened, the water of high concentration water's water supply tank (17) is sent into described elevated tank (21), unnecessary water is back to described high concentration water's water supply tank (17) through described second run-down pipe (20), keep described elevated tank (21) liquid level constant, change the aperture of described variable valve (25), use described spinner-type flowmeter (24) to finely tune high concentration water's matrix flow q, flow to described water quality mixer (35) through described base flow rising pipe (23);

(3) open described second ball valve (42), high concentration water flows to described suspension water tank (26) through described second delivery hose (22), keeps constant liquid level through described overflow hose (28); Need according to variation water quality amplitude, open stepper motor (43) respectively drive described first porous disc (16) to drive described first delivery hose (12) and drive described second porous disc (30) to drive described suspension water tank (26) to rotate, when making described first delivery hose (12) and described 3rd delivery hose (27) discharge reach required value, described stepper motor (43) stops, keeping described first delivery hose (12) and described 3rd delivery hose (27) the import and export discrepancy in elevation constant;

(4) periodic synchronous controls the opening and closing of described first solenoid valve (13) and described second solenoid valve (29), and the flow of the first delivery hose (12) described in during unlatching and described 3rd delivery hose (27) is followed successively by q ₁and q ₂and equal, be 0 during valve closes, it is constant that described water quality mixer (35) flows out discharge, makes water quality by rectangle fluctuation change.

4. the using method of the adjustable water quality wavegenerator of bivalve double plate described in claim 1, is characterized in that described method concrete steps are as follows:

(1) described first water pump (2) is opened, the water of described low concentration of water water supply tank (1) is sent into described permanent position water tank (5), unnecessary water is back to described low concentration of water water supply tank (1) through described first run-down pipe (4), keep described permanent position water tank (5) liquid level constant, open described first ball valve (9), supply water through the reservoir chamber of described low concentration of water base flow rising pipe (6) to described overflow-type distribution reservoir (10), described high dropout regulator (8) is utilized to change the discrepancy in elevation of described first vacuum brake (7) and described permanent position water tank (5) liquid level, change the size of low concentration of water Dryweather flow Q, the water of described overflow-type distribution reservoir (10) reservoir chamber flows into described overflow chamber rising pipe (11) through overflow weir, enter described water quality mixer (35),

(2) described second water pump (18) is opened, the water of high concentration water's water supply tank (17) is sent into described elevated tank (21), unnecessary water is back to described high concentration water's water supply tank (17) through described second run-down pipe (20), keep described elevated tank (21) liquid level constant, change the aperture of described variable valve (25), use described spinner-type flowmeter (24) to finely tune high concentration water's matrix flow q, flow to described water quality mixer (35) through described base flow rising pipe (23);

(3) open described second ball valve (42), high concentration water flows to described suspension water tank (26) through described second delivery hose (22), keeps constant liquid level through described overflow hose (28); According to variation water quality amplitude needs, described first hanging stick (31) and the second hanging stick (40) are fixed on apart from the positioning round orifice of porous disc center same radius R, start stepper motor (43) and drive described first porous disc (16) and described second porous disc (30) respectively, arrive the position of the first rotation angle scale (41a) and the second rotation angle scale (41b) center scale mark respectively to described first hanging stick (31) and described second hanging stick (40) after, stop described stepper motor (43);

(4) frequency converter (44) parameter is set according to cycle T, keep described first solenoid valve (13) and described second solenoid valve (29) in opening, reopen described stepper motor (43), described first porous disc (16) is driven to drive described first delivery hose (12) water delivering orifice to do uniform circular motion, drive described second porous disc (30) to drive described suspension water tank (26) to do uniform circular motion, the flow of described first delivery hose (12) and described 3rd delivery hose (27) is followed successively by q ₁and q ₂the dynamic change in sinusoidal wave and equal, obtains the sinusoidal variation water quality current of class of required cycle, amplitude, Dryweather flow and substrate concentration through described water quality mixer (35).