CN1074756A - Industrial sewage drainage total quantity measuring instrument - Google Patents
Industrial sewage drainage total quantity measuring instrument Download PDFInfo
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- CN1074756A CN1074756A CN 92111270 CN92111270A CN1074756A CN 1074756 A CN1074756 A CN 1074756A CN 92111270 CN92111270 CN 92111270 CN 92111270 A CN92111270 A CN 92111270A CN 1074756 A CN1074756 A CN 1074756A
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Abstract
A kind of industrial sewage drainage total quantity measuring instrument, be included in the device that in the work period integral operation is carried out in the output of flow signal generation device, produce signal generation device respectively corresponding to the concentration of standard specimen 1,2 and waste water, and calculate waste strength in this cycle according to analysis result to the concentration known of standard specimen 1 and 2, and, try to achieve the sewage discharge total amount through accumulation again with the result of computing and the result calculated sewage discharge amount in this cycle of trying to achieve that multiplies each other.Because the preceding instrument of the each analysis wastewater sample all accurate sample of automatic benchmarking is demarcated once, can overcome the influence of environment temperature utmost point drastic changeization, guarantees that determination data is reliable.
Description
The present invention relates to the total amount determining device of sewage discharge, relate to the industrial sewage drainage total quantity determinator particularly.
Industrial sewage drainage total quantity measuring instrument (being called for short the total amount instrument) is for cooperating the pollutant discharging license system, for carrying out the custom-designed a kind of environment protection and monitoring device of total amount of pollutants discharged control.
Ningbo east wind instrument plant released NY-30 sewage self-actuated sampler in 1985, later domesticly have other producer's design again and produced similar sewage sampling instrument.Abroad, the fixed sewage sampling system of manning series that has Technologies INC that Continental Europe section instrument (Far East) company limited sells to produce.But above-mentioned sewage automatic sampling system all only is confined to the sampling of sewage sample timing automatic.On June 13 nineteen ninety, Patent Office of the People's Republic of China (PRC) has announced " pollution source water quality, water quantity monitoring system " (application number is 89220894.5) by Shenyang Inst. of Environmental Science's design.The principal feature of this system is by a Single-chip Controlling, gathers simulating signals such as water temperature, flow, pH, finishes sampling work at regular time and quantity by logic control device simultaneously.This patent is enhanced than the automatic sampling instrument of original single sewage, because it has considered other factorses such as the discharge of sewage.But according to the environmental monitoring requirement, the essence of this patent is sewage sampling and the multi-channel analog signal reception and the terminal of passing on automatically, and has weak point.Except that automatic sampling, this patent system can only receive and pass on simulating signal, and itself does not comprise automatic analyzing subsystem, thereby can't be to the analysis mode signal scaling.The pH simulating signal that receives such as this system generally is to be delivered to by converter by the pH electrode signal.As everyone knows, the pH electrode response changes with gradient of temperature, therefore needs at any time electrode system to be demarcated and temperature correction.Correct if only rely on temperature analog signal that the pH simulating signal is done to calculate, electrodeless automatic calibration system is difficult to obtain authentic data.This system can not realize the mensuration of industrial sewage drainage total quantity in addition.
In order to overcome above shortcoming, but the purpose of this invention is to provide the monitoring system device of an independent operation, the gross contamination emission of pollution source can directly be provided for environmental management department.This device can be automatically set in period sewage pollutant (as NH to each
+ 4, Cl
-, F
-, DO, pH etc.) gross contamination emission of carrying out concentration determination, Sewage metering, sewage sampling and can print above-mentioned parameters automatically and go out when needing according to these Parameter Calculation.
Industrial sewage drainage total quantity measuring instrument provided by the present invention comprises the wastewater flow signal generation device, water sampling system, the cleaning fluid tank, standard specimen 1 tank that contains the aqueous solution of substandard concentration, standard specimen 2 tanks that contain the aqueous solution of high standard concentration, can distinguish and quantitatively carry cleaning fluid, standard specimen 1, the constant-delivery pump of standard specimen 2, the cleaning fluid operation valve, the sampling of wastewater operation valve, standard specimen 1 operation valve, standard specimen 2 operation valves, the action of above-mentioned each operation valve controlled respectively make it open the control circuit of a scheduled period, the arithmetic unit that the flow signal that in a work period flow signal generation device is produced carries out integral operation, produce respectively corresponding to standard specimen 1, the concentration signal generator of the signal of the concentration of standard specimen 2 and sampling of wastewater, according to the calculation element of the analysis result of the known standard concentration of standard specimen 1 and standard specimen 2 being tried to achieve the concentration of the waste water water sample in the above-mentioned work period, try to achieve the calculation element of sewage discharge amount in this cycle after the concentration that the operation result and the aforementioned calculation device of above-mentioned arithmetic unit are calculated multiplies each other, and the sewage discharge amount in each cycle is added up integrating device in the hope of the sewage discharge amount.
Advantage of the present invention is: can directly provide the data of total amount of pollutants discharged accurately for environmental management department.And can carry out system calibrating, pollutant levels analysis, Sewage metering, sewage sampling and data processing etc. automatically.
Followingly most preferred embodiment of the present invention is elaborated with reference to accompanying drawing, wherein:
Fig. 1 is analysis of the present invention, sampling system synoptic diagram;
Fig. 2 is the schematic block diagram of first embodiment of control of the present invention, computing system;
Fig. 3 is the schematic block diagram of second embodiment of control of the present invention, computing system;
Fig. 4 is the synoptic diagram of the signal in the work period of expression control of the present invention, computing system;
Fig. 5 is the main process flow diagram that total amount of pollutants discharged of the present invention is calculated;
Fig. 6 is the logarithm log(C of monitored material concentration) with the flow working curve diagram of electrode potential intensity I of groove of electrode;
Fig. 7 is the synoptic diagram of the most preferred embodiment of motion control system of the present invention;
Fig. 8 is the synoptic diagram of a most preferred embodiment of separation vessel of the present invention;
Fig. 9 is the synoptic diagram of the most preferred embodiment of operation valve of the present invention;
Figure 10 is the synoptic diagram of the most preferred embodiment of permanent position of the present invention valve.
Referring to Fig. 1, Fig. 1 is the synoptic diagram of analysis of the present invention, sampling system, and 10 is water sampling system, and the concentration signal generator is the mobile groove (28) of electrode that contains electrode.
Begin at a new cycle period, all operation valves (21,23,24,26,8,11,14,19,20) are in closed condition, vacuum pump (1) startup work, make surge flask (4) (being used for preventing that waste water from pouring in down a chimney into vacuum pump), solid suspension separation vessel 71,72 be in vacuum state.Along with vacuum tightness in the bottle improves, waste water through the first filter screen (22) of waste water import, by water inlet pipe (5), enters into the separation vessel (71,72) of separable solid suspension under the atmospheric pressure effect, treats that wherein the full final vacuum pump of water quits work automatically.Water intake velocity is controlled by vacuum breaker (2).In drawing the waste water process, analytic system is carried out the standard specimen analysis, in the hope of setting up the analytical work curve.The signal that provides according to the motion control system (see figure 7), correctives operation valve (19) and standard specimen 1 operation valve (14) are opened, peristaltic pump (30) as a kind of constant-delivery pump starts to work, standard specimen 1 and correctives mixed and be delivered to electrode (29), after electrochemical reaction, electrode (29) provide one with standard specimen 1 tank (12) in the corresponding electric signal of sample concentration (low concentration), deliver to the microsystem (39) of single board computer by the traffic pilot (see figure 2).After standard specimen 1 was analyzed and finished, standard specimen 1 operation valve (14) was closed automatically.According to programmed instruction, standard specimen 2 operation valves (20) are opened.As standard specimen 1 analysis sequence, standard specimen 2 mixes the back and delivers to electrode (29) by peristaltic pump (30) with correctives, after electrochemical reaction, electrode provide one with standard specimen 2 tanks (15) in the corresponding electric signal of standard specimen 2 concentration (high concentration), and deliver to microsystem (39).Computing machine is drawn (foundation) working curve automatically according to the concentration known and the electrical signal intensity corresponding with each standard specimen of standard specimen 1, standard specimen 2, uses during for the analysis wastewater sample.After standard specimen 2 was analyzed and finished, standard specimen 2 operation valves (20) were closed automatically.Subsequently, cleaning fluid operation valve (8) is opened, and carries out system with the liquid in the cleaning fluid tank (9) (for example water) and cleans, may be to the influence of wastewater sample analysis generation to eliminate standard specimen 2 residues and electrode residual electric potential.After cleaning finished, cleaning fluid operation valve (8) was closed automatically, and sampling of wastewater operation valve (11) is opened.Wastewater sample flows out from separation vessel (72) upper strata, waste water flowing sampling operation valve (11), carry and make it to mix by peristaltic pump (30) with correctives, after electrochemical reaction, by electrode (29) provide one with the corresponding electric signal of wastewater sample concentration, computing machine receives the back and calculates wastewater sample concentration according to the analytical work opisometer of having set up.When needed can be in the systematic analysis wastewater sample, waste water cryopreservation sampling operation valve (26) is opened, and the part wastewater sample is delivered to cryogenic box preserve, and uses for sending other factor of lab analysis back to.After useless subsample analysis was finished, sampling of wastewater operation valve (11) was closed automatically, and cleaning fluid operation valve (8) is opened once more, cleaned carrying sample inlet and electrode head.Simultaneously, draining control valve (21,23,24) is opened, and puts remaining exhausted water.So far, a cycle analysis process finishes, and waits for that next circulation arrives.Between the water sample analysis mouth and cleaning fluid operation valve (11) of separation vessel (72), between standard specimen 1 tank (12) and standard specimen 1 operation valve 14, between standard specimen 2 tanks (15) and standard specimen 2 operation valves (20) and between correctives tank (16) and the correctives operation valve (19) normal valve (not shown) can be set optionally.25 is delivery box, concentrates discharging in order to water or the relevant liquid that will come everywhere, obviously disperses discharging also to be fine.Above-mentioned correctives can be ionic strength adjustor or other chemical regulators.Drainage total quantity measuring instrument control computing system (see figure 2) follow procedure imposes a condition, regularly send signal or received signal (signal is exported, read in order and sees Fig. 4), and after by the motion control system (see figure 7) signal identification being handled, the solenoid valve at each position of this analysis system, pump etc. are operated, finished a complete set of process in order.
Referring to Fig. 2, Fig. 2 is the synoptic diagram of first embodiment of control computing system of the present invention.The control calculating section of industrial sewage drainage total quantity measuring instrument is the microsystem (39) that a Z80CPU is the center, and the operation control of total amount instrument system and operation program all have been solidificated in the Eprom chip of microsystem.The partial parameters of program can be set by simple and easy keyboard (38), and shows or monitoring by multi-elfin (37).The setting of follow procedure is a preface with time, and microcomputer system sends the strings of commands by traffic pilot (34) to motion control system 31, and by it each course of action is controlled; Simultaneously, official hour read in wastewater flow signal generation device (32) output wastewater flow signal (but the equal adapted of any flowmeter that has a standard signal input/output port, such as the induction flowmeter of the LD series of Guanghua Instrument and Meter Plant etc.), read in by and the standardization electric signal through changed corresponding that provide of the electrode (29) in the concentration signal generator (33) with concentration analytic sample; And the total amount of pollutants discharged calculation process that provides according to Fig. 5, automatically set up the analytical work curve, analyze the contaminated wastewater substrate concentration, blowdown flow rate and from start pollutant accumulative total discharge capacity (adding up total amount), print various data in the accumulative total wastewater discharge, calculation interval at official hour, and automatically carry out periodic cycle work.36 A/D transducers in addition for linking to each other with traffic pilot (34) and can carrying out the A/D conversion respectively to above-mentioned flow signal and concentration signal.37 is the printer that links to each other and microsystem (39) result of calculation can be printed with traffic pilot (34).It is the microsystem at center that microsystem (39) can adopt with Z80CPU.
Fig. 3 is the synoptic diagram of second embodiment of control computing system of the present invention.Above-mentioned microsystem wherein is by CPU(391), RAM(392), ROM(393) constitute, the A/D transducer has two promptly 361 and 362, they be connected in respectively flow signal generation device (32) and concentration signal generator (33) and CPU(391) between.Principle of work and Fig. 2 only are that each signal can enter CPU(391 at any time together) and need not to change through traffic pilot (34).But it is big that the capacity of memory is wanted.
Fig. 4 is the synoptic diagram of the signal in the work period of expression control of the present invention, computing system.The flow signal that Fig. 4 (a) expression is read in, the concentration signal that Fig. 4 (b) expression is read in, the output of Fig. 4 (c) expression actuating signal, Fig. 4 (d) represents printout signal (is representative with 1 pulse), Fig. 4 (e) represents clock signal (being the cycle with 1 minute for example).
This industrial sewage drainage total quantity measuring instrument to signal read in or output procedure mainly is to be the sequential control of preface with time, the sequencing of each signal is as shown in Figure 4.
In a cycle period, with Z80CPU external totally four kinds of the signals of exchange of microcomputer system at center, that is: read in flow signal, read in concentration signal, action control output, print signal output.From with time be preface signal graph as seen, it is the highest that flow signal reads in frequency, remove printout, read in concentration signal, the time and the required part-time of the computing of program own of 11 signal exchange such as action control signal output, other mostly is the time that flow signal reads in.
When a typical cycle period began, first signal was actuating signal output 1, even vacuum pump (1) starting and extraction waste water are that a series of flow signal reads in to the signal of solid suspension separation vessel (71,72) subsequently.By the time in the time of for example about 1 minute, actuating signal output 2 work promptly begin to analyze standard specimen 1, are again that a series of flow signal reads in subsequently.By the time for example during the 2 minutes 30 seconds left and right sides, concentration signal reads in 1 analysis result with standard specimen 1 and reads in computing machine, 3 work of actuating signal output subsequently promptly begin to analyze standard specimen 2.After this, be again that a string flow signal reads in.As shown in the figure, each signal is carried out in regular turn.
The also available literal of whole process is expressed as follows in proper order:
Cycle begins → vacuum pump (1) starting, extracting waste liquid (by actuating signal output 1 control) → flow signal reads in ... flow signal reads in → starting analysis peristaltic pump (30), open correctives and standard specimen 1 operation valve (19,14), carrying out standard specimen 1 analysis (by actuating signal output 2 controls) → flow signal reads in ... flow signal reads in → reads in standard specimen 1 analysis result (concentration signal that produces corresponding to low concentration reads in 1) → open standard specimen 2 operation valves (20) (by actuating signal output 3 controls) → flow signal to read in ... flow signal reads in → reads in standard specimen 2 analysis results (concentration signal that produces corresponding to high concentration reads in 2) → open cleaning fluid operation valve (8) and cleans analytic system (by actuating signal output 4 controls) → flow signal and read in ... flow signal reads in → analyzes wastewater sample and get part waste water sample to cryopreservation case (27) (by actuating signal output 5 controls) → flow signal and reads in ... flow signal reads in → reads in wastewater sample analysis result (produce concentration signal read in 3) → open cleaning fluid operation valve (8) and cleans (by actuating signal output 6 controls) → flow signal and read in ... flow signal reads in → discharges solid suspension separation vessel (71,72) remaining waste liquid and divider (54 among Fig. 7) is resetted make zero (by signal output 7 controls of moving position) → circulation time-delay in, and flow signal reads in → end cycle, and data result is printed (printout 1) → next beginning that circulates near end the time.
Be that example is represented more than with above-mentioned first embodiment of the present invention, thus among Fig. 4 (a) to read in flow signal jagged when producing actuating signal output, and above-mentioned second embodiment of the present invention, then non-notch.The result who prints in end of term work week can have date, time, pollutant levels, wastewater discharge, blowdown flow rate reaches from start accumulative total total amount of pollutants discharged in one-period.
Referring to Fig. 5, Fig. 6, Fig. 5 is the main process flow diagram that total amount of pollutants discharged of the present invention is calculated, and Fig. 6 be the working curve diagram of the electrode potential intensity of the logarithm of monitored material concentration C and the mobile groove of electrode.
Begin (step 40) in a new circulation, computer system reads earlier analyzes the intensity level I that standard specimen 1 is obtained
1(step 41) reads the intensity level I that analyzes standard specimen 2 again
2(step 42) is according to the concentration C of the standard specimen 1 and the standard specimen 2 of original setting
1And C
2And the standard specimen 1 and the standard specimen 2 intensity level (I of real-time analysis acquisition
1, I
2), calculate a and the b constant (step 43) of logC=a*I+b working curve (see figure 6).Thereupon, analyze wastewater sample, according to the current potential intensity level I of wastewater sample correspondence, obtain the logarithm of waste strength C, and then obtain concentration C (step 44) by the inverse logarithm computing by above-mentioned formula (at this moment, a, b, I are known number).Because of this C value is a certain periodic duty cycle (or claiming the period) the interior wastewater sample concentration of △ t,, represent with △ C again so can regard the concentration of this period as.
In aforementioned process, computing machine is except providing the action command (see figure 4), read in standard model analytic intensity value, outside evaluation work curve constant and analysis and the calculating wastewater sample concentration, also constantly read in the wastewater flow signal simultaneously, in the periodic duty cycle by the waste water discharge rate △ V in the integral operation continuous integration period.(this step is not shown).End cycle to be recycled is according to T
c=△ C* △ V calculates this cycle internal contamination thing discharge capacity △ T
c( step 45,46,47), and further with this △ T
cBe added to from the gross contamination emission that start is calculated (step 48), and before cycle period finishes, print various data (step 49).
Referring to Fig. 7, Fig. 7 is the synoptic diagram of a most preferred embodiment of motion control system of the present invention.
The full-automatic cyclic process that this industrial sewage drainage total quantity measuring instrument goes round and begins again mainly is the control that is subjected to microcomputer system among Fig. 2.The action control signal is from computer system, but specifically the control of each action then is to be finished by this motion control system (31).
As shown in Figure 7, the computer action instruction that native system is accepted is to come from same passage, is to be preface with time because of action command, so its essence is equivalent to pulse train signal (Fig. 4 (e)).Have 7 pulses in the cycle period, each pulse width is 4 μ s.Clock signal from computing machine produces action control signal (Fig. 4 (c)) by action control signal generator (56), and enter into one or more dividers (54) through optocoupler isolator (52) and single step trigger (53), for example use 4017 integrated packages, and give corresponding control channel with the pulse signal distribution of action command string by divider (54), promptly first pulse signal is corresponding to first passage Q
1, second pulse signal is corresponding to second channel Q
2, and by that analogy.
By Fig. 4 (C) actuating signal output waveform figure and Fig. 7 as can be known, cycle period begins, and computing machine provides first signal, and this signal is dispensed to first passage Q by divider
1, trigger monostable circuit 4, make relay J
4Connect, thereby reach suction vacuum pump (1) work that makes.The working time of monostable circuit 4 is set to make in the solid suspension separation vessel (71,72) and is full of till the waste water sample.Subsequently, second signal sending of computing machine shifted by divider (54) and is dispensed to second channel Q
2, trigger monostable circuit 8,7,5 respectively, make relay J
8, J
7, J
5Adhesive, thus make peristaltic pump (30) running carry sample, make correctives operation valve and standard specimen 1 operation valve (19,14) open conducting, carry out standard specimen 1 and analyze.Monostable 8 delay times i.e. the working time of peristaltic pump, are the summation of five actuation times such as standard specimen 1, standard specimen 2, second electrode cleaning, the analysis of waste water sample.Monostable 7, i.e. correctives control chronotron, its delay time is for analyzing standard specimen 1, standard specimen 2 and the summation of waste water sample time.Standard specimen 1 is analyzed and is finished, and computing machine sends the 3rd signal, and divider (54) is dispensed to third channel Q with it
3, make standard specimen 2 operation valves (20) conducting, carry out standard specimen 2 and analyze.Because of it is the high concentration standard specimen, to analyze the back that finishes and stain for anti-locking system, computing machine sends the 4th signal and passes through Q
4Trigger monostablely 3, make relay J
3Work is cleaned analytic system thereby open cleaning fluid operation valve (8).After cleaning finished, the 5th signal that computing machine sends passed through Q
5, monostable 2 and relay J
2, open sampling of wastewater operation valve (11), thereby wastewater sample analyzed.At the same time, the 5th signal also makes monostable 9 and relay J
9Work collects the cryopreservation case with the part wastewater sample and preserves (using for taking back lab analysis).After treating that the analysis of waste water sample finishes, computing machine provides the 6th signal, passes through Q
6Make relay J
3Cleaning fluid operation valve (8) is promptly opened in work again, and analytic system is cleaned.The 7th signal that computing machine provides also is last signal in the cycle period, passes through Q
7And relay J
1, open the remaining waste water atmospheric valve (23,24) of solid suspension separation vessel wherein remaining waste water discharged.Simultaneously, last signal also makes monostable 10 work, through relay J
10, the clear circuit that resets (55) resets divider (54) and monostable 1-10 and makes zero, and can be assigned to first passage Q with first signal that guarantees next circulation beginning
1
Referring to Fig. 8, Fig. 8 is the synoptic diagram of a most preferred embodiment of separation vessel of the present invention.This separation vessel is a second-stage separator, is made up of first separation vessel (71) with shell (76) and second separation vessel (72) with shell (82).Wherein 5 is water inlet pipe, in order to introduce the waste water that to measure, 6 is the vacuum pipe that links to each other with vacuum pump 1, by with two separation vessels (71,72) waste water is flowed into, two separation vessels (71,72) be equipped with first respectively in, second vertical pipe (74,80), 2 or a plurality of taper column plate cover (83 respectively are housed on this pipeline, 84,75,81,85), each vertical pipe has a plurality of apertures (88a-c that represents with dot at the hypomere with taper column plate cover connecting place, 89a, b), two vertical pipes (74,80) connect with external connecting pipe road (72) between.The waste water flow direction is represented with arrow, promptly the inner aperture (88a-c) from taper column plate cover (83,84,75) enters first vertical pipe (74), again through connecting tube (77) to second vertical pipe (80), come out from taper column plate cover (81,85) inside through aperture (89a, b) again, come out through the analysis water-like outlet (86) and the maintenance water sample outlet (87) of second separation vessel (72) respectively, for the usefulness of mensuration.This separation vessel can separate the bulky grain solid suspension effectively, can make the wastewater sample acquisition system reliable.Whether this separation vessel uses, use single-stage or two-stage all with waste water in the having or not of contained suspension, and character is relevant.78 is water level switch, treat to fill after the waste water in second separation vessel (72), water level switch (78) stretch into two electrodes in the waste water through waste water and conducting quits work vacuum pump 1 by monostable 4 among Fig. 7.The bottom of first separation vessel (71), second separation vessel (72) links to each other with the first remaining waste water atmospheric valve (23) and the second remaining waste water atmospheric valve (24) respectively.This separation vessel can improve waste water sample acquisition system reliability of operation.
Referring to Fig. 9, Fig. 9 is the synoptic diagram of the most preferred embodiment of operation valve of the present invention.Wherein 91 is nut, 92 is case, 93 is spool, 94 is top cover, 95 is coil, 96 is coil former, 97 is spring, 98 for can be by the water sample pipe of the water sample that will control, 99 is the pressure pipe crossbeam, 100 are Cuo at the bottom of the spill that tightens together with top cover (94), water sample pipe (98) passes the through hole in the base (100), and pressure pipe crossbeam (99) is placed between the bottom land and water sample pipe (98) in the middle of the groove of base (10), and double-screw bolt (101) is fixed on the top cover (94), by case (92) being fixed on the top cover (94) with the nut (91) of twisting thereon, by the elastic force of spring (97) spool (93) is not pressed to water sample pipe (98) at coil (95) when switching on, because of water sample pipe (98) is plastic tube such as silicone rubber tube, yielding, thereby water sample pipe (98) is flattened, thereby stop water sample wherein to pass through by the effect of spool (93) and pressure pipe crossbeam (99).When coil (95) is switched on, spool (93) is upwards inhaled, and made spring (97) compression, thereby make water sample pipe (98) recover former state, and water sample is successfully passed through from water sample pipe (98).This pressure-pipe type solenoid valve is applicable to each operation valve in analysis of the present invention, the sampling system, its advantage is to make the operation of sample etc. have closure, can avoid of the corrosion of waste water sample, and pipeline and parts are to the issuable interference of analysis result to pipeline and parts.
Referring to Figure 10, Figure 10 is the synoptic diagram of the most preferred embodiment of the permanent position of float-type of the present invention valve.Between water sampling system (10) and sampling of wastewater operation valve (11), between standard specimen 1 tank (12) and standard specimen 1 operation valve (14), between standard specimen 2 tanks (15) and standard specimen 2 operation valves (20) and can also be connected a perseverance valve (not shown) between correctives tank (16) and the correctives operation valve (19) respectively.The constant current delivered solution is accomplished in height and the wherein influence of liquid level change that the connection of permanent position valve can make the flow of the relevant controlling valve of flowing through not placed by each tank or water sampling system (10).The most preferred embodiment of permanent position of the present invention valve is the permanent position of a float-ball type liquid valve, the valve gap (106) that it has valve body (107), be connected with valve body (107) by screw thread, is contained in interior ball float (109) of valve and the taper thimble (108) that is placed on the top of ball float (109) and keeps in touch with it.And the input that band inlet (104) is arranged on the valve gap (106) is taken over (111) and is passed wherein, and be provided with return-air hole (105), the outside of stretching into the input adapter (111) in the valve is with for example silicone rubber tube (113) of sealed tube, and this sebific duct (113) also is fixed on the inside surface of valve gap (106).The guide rod that links to each other with tapered thimble (108) (114, can be the stainless steel guide rod) extend among the input adapter (111) and can move up and down therein.Also use fixed screw (103) to be fixed with positioning hanger (102) on valve gap (106), obviously it also can be fixed to other suitable positions of valve body (107).Be provided with the discharge conection (112) of band leakage fluid dram (110) in the bottom of valve body (107).Inlet (104) can pass through pipeline (not shown) and link to each other with water sampling system (10) or relevant tank (12,15,16).Leakage fluid dram (110) can pass through pipeline (not shown) and link to each other with relevant controlling valve (11,14,20,19).When relevant operation valve is closed, solution in said system (10) or the tank (12,15,16) (being called for short upper container) flows in the valve (for example passing through syphonic effect), along with the interior liquid level of valve body (107) raises, ball float (109) floats, and promotes tapered thimble (108) and moves up.The conical surface of tapered thimble (108) contacts with sealed tube (113) when liquid level rises to certain height, closes inlet.Ball float descends with the liquid level in the valve body (107) when relevant operation valve is opened, and tapered thimble (108) falls, and the liquid in the above-mentioned upper container enters valve body (107), and input is reached mobile equilibrium with output.Be slightly less than inlet (104) because of leakage fluid dram (110) again but so in the maintaining valve liquid level of solution only in a small range, change in certain height, and this position potential difference can be ignored substantially to the influence that output produces, thereby plays the effect of permanent position.And make the operational throughput substantially constant.Can eliminate the data deviation that causes because of potential difference between standard specimen, correctives, the waste water, thereby further improve the accuracy of analyzing data.Obviously do very greatly as upper container, and by keep its liquid level substantially constant simultaneously to wherein infusing, also can be without this permanent position valve.
This instrument has that the discharge of sewage is measured automatically, pollutant levels are measured automatically and sample three big functions automatically, can control by software program, automatically gather and analysis water-like in the period of each setting, and the printable data such as sewage quantity, pollutant levels and total amount of pollutants discharged clearing value that go out this period, at the character of different waste water with need to carry out the project of overall control, but the different electrode of instrument adapted is (as NH
+ 4, F
-, Cl
-, pH, DO, etc.), or the chemical colorimetry parts (it by photoelectric tube obtain the response concentration electric signal) adapt with it.Measuring Cl
-, can be during pH etc. without ionic strength adjustor or other chemical regulators.This moment its tank (16) and operation valve (19) thereof also can save need not.In addition, obviously also available other pulsing circuits of motion control system constitute, and the also available thyristor of its relay replaces.
This instrument adopts synchronous scaling method (promptly each preceding instrument of wastewater sample of analyzing is all demarcated once automatically), overcome instrument and placed the field for a long time, must be subjected to the influence (heat in summer of environment temperature utmost point drastic changeization, the severe cold in winter, the temperature difference round the clock etc.), provide basic assurance for obtaining the reliable analysis data.
Claims (10)
1, a kind of industrial sewage drainage total quantity measuring instrument, comprise: wastewater flow signal generation device 32, waste water water sampling system 10, it is characterized in that also comprising cleaning fluid tank 9, standard specimen 1 tank 12 that contains the aqueous solution of substandard concentration, standard specimen 2 tanks 15 that contain the aqueous solution of high standard concentration, can distinguish and quantitatively carry cleaning fluid 1, standard specimen 1, the constant-delivery pump of standard specimen 2, cleaning fluid operation valve 8, sampling of wastewater operation valve 11, standard specimen 1 operation valve 14, standard specimen 2 operation valves 20, to above-mentioned each operation valve 8,11,14,20 action is controlled respectively and is made its control circuit of opening a scheduled period 31, the arithmetic unit that the flow signal that in a work period flow signal generation device 32 is produced carries out integral operation, produce respectively corresponding to standard specimen 1, the concentration signal generator 33 of the signal of the concentration of standard specimen 2 and waste water water sample, according to the calculation element of the analysis result of the concentration known of standard specimen 1 and standard specimen 2 being tried to achieve the concentration of the waste water water sample in the above-mentioned work period, try to achieve the calculation element of sewage discharge amount in this cycle after the concentration that the operation result and the aforementioned calculation device of above-mentioned arithmetic unit are calculated multiplies each other, and the sewage discharge amount in each cycle is added up integrating device in the hope of the sewage discharge total amount.
2, analyzer as claimed in claim 1 is characterized in that above-mentioned concentration signal generator 33 is the mobile groove 28 of the electrode of belt electrode 29.
3, analyzer as claimed in claim 1 is characterized in that above-mentioned constant-delivery pump is a peristaltic pump 30.
4, analyzer as claimed in claim 1 is characterized in that above-mentioned waste water water sampling system 10 comprises suction vacuum pump 1, vacuum breaker 2, surge flask 4, separation vessel 71,72 and surge flask ponding atmospheric valve 21, the remaining waste water atmospheric valve 23,24 of separation vessel.
5, analyzer as claimed in claim 4 is characterized in that above-mentioned separation vessel is that one-level has the separation vessel turriform plate, separable solid suspension at least.
6, analyzer as claimed in claim 1 is characterized in that also being provided with correctives tank 16 and correctives operation valve 19, and this operation valve 19 is subjected to the control of control circuit 31.
7, analyzer as claimed in claim 1 is characterized in that above-mentioned control circuit 31 comprises action control signal generator 56, isolator 52, trigger 52, divider 54, monostable circuit (monostable 1-10), pilot relay J
1-J
10
8, analyzer as claimed in claim 1, it is characterized in that between waste water water sampling system 10 and the sampling of wastewater operation valve 11, between standard specimen 1 tank 12 and standard specimen 1 operation valve 14, and standard specimen 2 tanks 15 and standard specimen 2 operation valves 20 between be connected to the permanent valve of float-type respectively.
9, analyzer as claimed in claim 1 is characterized in that above-mentioned each operation valve is the pressure-pipe type solenoid valve.
10, analyzer as claimed in claim 1 is characterized in that also being provided with waste water cryopreservation case 27.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111270 CN1027713C (en) | 1992-09-27 | 1992-09-27 | Industrial sewage drainage total quantity measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92111270 CN1027713C (en) | 1992-09-27 | 1992-09-27 | Industrial sewage drainage total quantity measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1074756A true CN1074756A (en) | 1993-07-28 |
| CN1027713C CN1027713C (en) | 1995-02-22 |
Family
ID=4945254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92111270 Expired - Fee Related CN1027713C (en) | 1992-09-27 | 1992-09-27 | Industrial sewage drainage total quantity measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027713C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178392B (en) * | 2007-10-26 | 2011-05-18 | 山西大学 | Organic matter in water enriching concentrating instrument and control method thereof |
| CN114077941A (en) * | 2020-08-13 | 2022-02-22 | 上海腾美信息技术有限公司 | Environment-friendly information management system for enterprises and management method thereof |
| CN118534074A (en) * | 2024-07-23 | 2024-08-23 | 中国市政工程华北设计研究总院有限公司 | System and method for measuring and calculating mixed concentration of source sewage pipeline |
-
1992
- 1992-09-27 CN CN 92111270 patent/CN1027713C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101178392B (en) * | 2007-10-26 | 2011-05-18 | 山西大学 | Organic matter in water enriching concentrating instrument and control method thereof |
| CN114077941A (en) * | 2020-08-13 | 2022-02-22 | 上海腾美信息技术有限公司 | Environment-friendly information management system for enterprises and management method thereof |
| CN118534074A (en) * | 2024-07-23 | 2024-08-23 | 中国市政工程华北设计研究总院有限公司 | System and method for measuring and calculating mixed concentration of source sewage pipeline |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1027713C (en) | 1995-02-22 |
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