CN202082621U - Quasi-closed circulation pipe network water quality comprehensive simulation test system - Google Patents
Quasi-closed circulation pipe network water quality comprehensive simulation test system Download PDFInfo
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- CN202082621U CN202082621U CN2011201624663U CN201120162466U CN202082621U CN 202082621 U CN202082621 U CN 202082621U CN 2011201624663 U CN2011201624663 U CN 2011201624663U CN 201120162466 U CN201120162466 U CN 201120162466U CN 202082621 U CN202082621 U CN 202082621U
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Abstract
The utility model discloses a quasi-closed circulation pipe network water quality comprehensive simulation test system, which comprises a water supply subsystem and an independent circulation pipe network subsystem. The water supply subsystem comprises a water supply tank with a water inlet, a water outlet and a drug injection port. The independent circulation pipe network subsystem comprises a main circulation pump, an electromagnetic flowmeter and an elevated water supplement exhaust water tank, the main circulation pump, the electromagnetic flowmeter and the elevated water supplement exhaust water tank are connected into a loop through a pipeline, and a water supplement system for supplementing water for the loop, a discharging branch for discharging water in the loop and a water quality monitoring system are connected to the loop. A drug injection system is further connected to the pipeline of the independent circulation pipe network subsystem. All components of the quasi-closed circulation pipe network water quality comprehensive simulation test system mutually cooperate, so that the quasi-closed circulation pipe network water quality comprehensive simulation test system is high in simulation and more similar to an actual municipal water supply pipe network.
Description
Technical field
The utility model relates to the test simulation systems technology field of potable water water supply network, particularly a kind of accurate closed circulation pipe network water quality comprehensive simulation test system.
Background technique
Water supply network is the important component part in the water supply system, and its effect is that the water that meets national Drinking Water water standard after purifying through water factory is delivered to user terminal.Every index of China's most waterworks effluent quality can both reach or be better than national water quality standard for drinking water, but when being delivered to the user by pipe network, often not reaching standard even jeopardize user's body health.Data shows, the water of waterworks is from the user of dispatching from the factory, and water quality presents the trend of obvious reduction, shows that mainly the content in water such as iron, manganese, colourity, turbidity, total number of bacteria increases, even surpassing NBS, this much all finds in the actual motion of water factories at home to some extent.In addition, although the develop rapidly of water technology has fully guaranteed to handle safety, the health of back water quality, but the secondary pollution problem in the pipe network has become influences the principal element that effluent quality can't be up to standard, is water quality research work and water treatment main research work.
Water supply network is just as a sensitivity, dynamic and have a huge reactor of self-characteristic, water is owing to the holdup time in pipeline is long, itself constantly be subjected to polluting once more, complicated physics, chemistry and biology taking place in pipeline changing, cause the decline of sanitary condition in the pipeline.According in " town water supply industry technological progress development plan in 2000 " domestic 34 main cities ductwork water quality data being added up, what surface water water factory output water was basicly stable accounts for 21%, corrosively accounts for 50%, slight fouling accounts for 29%.What underground water water factory output water was basicly stable accounts for 50%, mordantly accounts for 30%, slight corrosively accounts for 20%.To accounting for 36 urban surveys of national total supply 42.44%, the output water average turbidity is 1.3 degree, and pipe network water is increased to 1.6 degree; Colourity is increased to 6.7 degree by 5.2 degree; Iron is increased to 0.11mg/l by 0.09mg/l; Total number of bacteria is increased to 29.2cfu/ml by 6.6cfu/ml.Certain city finds that the thickness of pipe scale in the water pipe reaches 16～20mm, redness of the skin or complexion, fishy smell is arranged, contain 16 kinds of metallic elements, detect 6 kinds of microorganisms such as iron bacteria, dust Xi Shi Escherichia coli and (see Qin Qiuli, Chen Jingyan for details, China's town water supply safe condition is analyzed and the guarantee countermeasure, water conservancy economy, 2001.5).According to city's results of regular determination pipe network roughness coefficient statistics such as Shanghai, Tianjin, find that the pipeline water delivery ability of no anti-corrosion measure has reduced more than 1/3.Pipeline scale, water delivery water quality deterioration, pipeline water delivery ability drop have become the ubiquitous phenomenon of public supply mains.
Expansion and propelling and the progress of society and the raising of living standards of the people fast of town and country one way of supplying water along with China completed region of the city, the resident no longer only has been confined to the guarantee of the pressure and the water yield for the requirement of potable water, but the more concern quality problem, the water stabilization of public supply mains and safety problem are urgent day by day.Drinking water quality is not only up to standard when dispatching from the factory, and need be up to standard at user's water tap place, meets water quality standard for drinking water.And most important in carrying as potable water, also be that the health of the most responsive link-water supply network then is prerequisite and the basis that ensures final leading effluent quality safety.Change of water quality mechanism in the research pipe network proposes and the relevant reply of checking technical measures, is the key point of guaranteeing the inner health of pipe network and ensureing final pipe network tip effluent quality safety.
Carry out above research work, the pipe network experimental study is a basic means, can realize by the research technique of three levels.The most direct is to carry out site test, but exists external condition uncontrollable, is difficult to carry out the problem of quantitative study targetedly, and more crucial is that the test pipe network relates to huge numbers of families, can not add the medicament of test easily; The simplest is to carry out indoor beaker test or build simple local reaction device test, but this class test water sample is few, can not do long-time loop around test, and there is serious test problem of dtmf distortion DTMF in the real working condition ratio with actual pipeline.Therefore, many research institutions all are inclined to and adopt the testing apparatus of circulation pipe network model that true pipe network is carried out high analogue simulation both at home and abroad, provide panorama to show and analysis.In the prior art, circulation pipe network simulation of water quality pilot system both domestic and external all adopts the open cycle mode, promptly is connected with a low level wet pit in the circulating line loop, and current back by the road flow into wet pit, pass through elevator pump then, water is risen in the pipe-line system circulate.This wet pit promptly is that the former water of test allotment pond has scavenging action again concurrently, but because each circulation water sample all contacts with the air large size when flowing through wet pit, can influence cycle water; And the Yuan Shui pond participates in the pipe network loop around test, and there is some difference for flow condition and actual pipe network, causes simulate effect and true pipe network to exist than large deviation.And, the cyclic design of whole circulation pipe network pilot system pipeline is very simple, cycling distance is shorter, therefore existing that analog distortion, controllable parameter are few, the narrow range of water quality research, be difficult to study technological deficiencies such as operating mode and inner habitat, is not the circulation pipe network water quality comprehensive simulation test system on the essential meaning.
Summary of the invention
The utility model provides a kind of accurate closed circulation pipe network water quality comprehensive simulation test system, and in whole accurate closed circulation pipe network water quality comprehensive simulation test system, each parts cooperatively interacts, the fidelity height, can simulate actual water main pipe network system.
A kind of accurate closed circulation pipe network water quality comprehensive simulation test system, the independent loops pipe network subtense angle that comprises the water supply subtense angle and be connected with the water supply subtense angle;
Described water supply subtense angle comprises the water tank of bringing the mouth of a river, water outlet and medicament inlet into;
Described independent loops pipe network subtense angle is the loop that comprises by main circulating pump, electromagnetic flowmeter and the high-order moisturizing exhaust water tank of pipeline series connection; Described loop is provided with water intake, and the water intake in described loop is communicated with by the pipeline with first valve with the water outlet of water tank;
Described loop is connected with the water charging system that is used to the loop supplementing water, the water quality monitoring system that is used for discharging the emptying branch road of loop water and is used for the water quality of monitoring circuit water;
Described water charging system comprises the experiment water filling jar and the experiment water dispenser pump of series connection, described experiment water filling delivery side of pump and circuit communication, and the inlet of described experiment water filling jar is communicated with the water outlet of water tank;
The end face of described water tank and high-order moisturizing exhaust water tank approaches same horizontal plane, described horizontal plane is positioned at the horizontal extreme higher position of described accurate closed circulation pipe network water quality comprehensive simulation test system, and the placement location of described main circulating pump is lower than the placement location of water tank and high-order moisturizing exhaust water tank;
Described high-order moisturizing exhaust water tank comprises casing and is positioned at the piston-like floating head of casing, leaves the space between described piston-like floating head and the cabinet wall; The density of described piston-like floating head is less than the density of water.
The described water tank closed circulation pipe network water quality comprehensive simulation test system that is as the criterion provides the water source, the water outlet of described water tank generally is positioned at the bottom of water tank, it is the basal surface position of water tank or near the sidewall of the water tank of water tank bottom surface, like this, water in the water tank can flow in the independent loops pipe network subtense angle better, is that independent loops pipe network subtense angle supplies water better.The water source of water tank, water intake by water tank after general employing tap water ships by direct water supply of the water intake of water tank or water storage vehicle directly pours into water tank, also can be according to the experiment needs, add medicament by the medicament inlet and carry out distributed in demand, obtain required resource of water supply.
In order not make water in the water tank contaminated and successfully the gas in the water tank is discharged, the water tank dust cover that area is slightly larger than the water tank end face is stamped at the top of described water tank; The top side wall of described water tank is provided with the through hole that is used for exhaust.
Described water tank is connected with the pipeline branch road of band mixed cycle pump, and the two ends of described pipeline branch road are communicated with water tank respectively; Preferably there is height difference between the two ends of described pipeline branch road, be located at the water tank bottom surface or near the water tank sidewall of water tank bottom surface as an end of pipeline branch road, the other end of pipeline branch road is located at the water tank end face or near the water tank sidewall of water tank end face.Like this, just there is certain height poor between the two ends of the pipeline branch road of water tank, under the effect of mixed cycle pump, water in the water tank comes out from an end (being the low side of pipeline branch road) of pipeline branch road, enter from the other end (being the high-end of pipeline branch road) of pipeline branch road again, make the water in the water tank fully stir, finally mix.
Described main circulating pump provides power for the ducted water cycle operation of independent loops pipe network subtense angle, make the ducted water of independent loops pipe network subtense angle that stable flow velocity can be arranged, preferably, the bottom surface of main circulating pump is positioned at the floor level face of accurate closed circulation pipe network water quality comprehensive simulation test system, so that when being full of the test water from water tank in the pipeline of independent loops pipe network subtense angle, the main circulating pump inner chamber body also can be full of water, and the startup main circulating pump provides power for the ducted water of independent loops pipe network subtense angle.The control of flow velocity adopts the VFC of main circulating pump to finish, and the measurement of flow velocity can be adopted electromagnetic flowmeter.
Can adopt the experiment water filling jar and the experiment water dispenser pump of series connection in the described water charging system, simultaneously electromagnetic flowmeter can also be set feeds back rate of water make-up, this water charging system mainly is can provide power when initialization, make the former water liquid level of test that enters in the high-order exhaust replenishing water tank of water of circulation pipe network subtense angle be higher than the water tank liquid level, but the former water major part of the test in the water tank enters independently in the circulation pipe network subtense angle like this, saves former damage by water consumption.When the needs of water quality monitoring system owing to the monitoring sampling, when causing the ducted water of independent loops pipe network subtense angle to reduce, in view of the reduction of water of sampling is very little, can finish moisturizing by the participation circuit retaining in the high-order exhaust replenishing water tank of water, when the water flow of pipeline rate of water make-up of circulation pipe network subtense angle is bigger, be that the pipeline of circulation pipe network subtense angle needing after the exhaust to carry out replenishing the water table ratio of relatively large water or high-order exhaust replenishing water tank of water when low, can adopt water charging system to carry out moisturizing, making has retaining all the time at high-order exhaust replenishing water tank of water, remain on suitable level, prevent that air from entering into the pipeline of circulation pipe network subtense angle.
The route atmospheric valve is propped up in described emptying and the system blow-down pipe is formed, and the circulation pipe network water of finishing after the simulation test is all discharged, and pours water again by water tank then again, begins new test.
Though be provided with water tank both at home and abroad in the pipe network analog system to get rid of the air in the pipeline, avoid occurring in the circulation loop vacuum and then produce unstability and vibration.But existing water tank is uncovered casing, the water tank of this structure will make unavoidably that water sample has the chance that contacts with air in cyclic process, cause the change of water quality character in each circulation, cause the fidelity of pipe network simulation to descend, make result of study bigger deviation occur.For this reason, in the accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system, high-order moisturizing exhaust water tank in the independent loops pipe network subtense angle is provided with the piston-like floating head identical with bottom shape, described piston-like floating head is placed horizontally in the high-order moisturizing exhaust water tank, and and high-order moisturizing exhaust tank inner wall between leave the space, the density of described piston-like floating head is less than the density of water, the piston-like floating head just can be done the piston type motion in rising of the water level in the high-order moisturizing exhaust water tank or decline like this, in guaranteeing the emptying pipeline, reduce circulating water flow and the chance that the pipe outer air contacts in the gas as much as possible, guarantee that simulation pipeline water quality is consistent with true pipe network.Requirement to density mainly is for the piston-like floating head can be floated, described density is meant the density of piston-like floating head integral body, be not to be the density of the material of piston-like floating head, can adopt the centre of making to be full of the closed piston type floating head of air as the piston-like floating head by thin corrosion resistant plate, such piston type floating head also can float on the water, and satisfies the density requirements of the utility model for the piston-like floating head.
Described high-order moisturizing exhaust water tank, its wall is vertical with the bottom surface, is the shape of an arbitrary cross section and the solid that area all equates.The piston-like floating head that more convenient like this shape is similar to cross section, area is slightly less than cross section can be done the piston motion by in the vertical direction, simultaneously, the high-order moisturizing exhaust water tank end face dust cover that area is slightly larger than high-order moisturizing exhaust water tank end face is stamped at the top of described high-order moisturizing exhaust water tank, and described high-order moisturizing exhaust water tank end face dust cover can obtain effective support by high-order moisturizing exhaust tank box.The top side wall of described high-order moisturizing exhaust water tank is provided with the through hole that is used for exhaust, like this, can significantly reduce the chance that water sample contacts with air in cyclic process, the air in the circulating water in the independent loops pipe network subtense angle can be discharged smoothly again.Preferably, it is cylindrical can selecting the casing of high-order moisturizing exhaust water tank.
For the bubble in the ducted water of the pipe network of emptying independent loops better subtense angle, the water outlet of described high-order moisturizing exhaust water tank is positioned at the bottom of high-order moisturizing exhaust water tank, promptly be positioned at high-order moisturizing exhaust water tank sidewall or high-order moisturizing exhaust water tank bottom surface near high-order moisturizing exhaust water tank bottom surface, the water intake of described high-order moisturizing exhaust water tank is higher than the water outlet of high-order moisturizing exhaust water tank and is lower than high-order moisturizing exhaust water tank case Senior Two/one position.Like this, the water intake of high-order moisturizing exhaust water tank just is higher than the water outlet of high-order moisturizing exhaust water tank, and the ducted water of independent loops pipe network subtense angle just has certain drop when flowing through, and bubble will rise because density is little like this, easily discharges.
The pipeline that described independent loops pipe network subtense angle is a plurality of and a plurality of independent loops pipe network subtense angles is identical or different; The pipeline of described independent loops pipe network subtense angle is ductile iron pipe, polyethylene pipe (PE pipe), copper pipe or Stainless Steel Tube.The pipeline of independent loops pipe network subtense angle is exactly the carrier that the water in the circulation pipe network flows, it also is transportation environment, because the pipeline of unlike material is to the degree varies sample of the secondary pollution of water, the concrete chemistry that takes place, physics also can be different with biological the variation, therefore, the utility model has been chosen ductile iron pipe commonly used in actual pipeline, the PE pipe, copper pipe, Stainless Steel Tubes etc. are as the pipeline of independent loops pipe network subtense angle, to study of the influence of different pipelines to change of water quality in the transportation pipe network, relevant reply technical measures are proposed, and the validity of the relevant reply of checking technical measures.
Water supply subtense angle in the utility model can link to each other with a plurality of independent loops pipe network subtense angles, a plurality of independent loops pipe network subtense angles all can independently be tested, link to each other with four independent loops pipe network subtense angles as a water supply subtense angle, promptly the pipeline of a water supply subtense angle connection independent loops pipe network subtense angle is the independent loops pipe network subtense angle of ductile iron pipe, the pipeline of independent loops pipe network subtense angle is the independent loops pipe network subtense angle of PE pipe, the pipeline of independent loops pipe network subtense angle is that the independent loops pipe network subtense angle of Stainless Steel Tube and the pipeline of independent loops pipe network subtense angle are the independent loops pipe network subtense angle of copper pipe.
In order to monitor the ducted water quality situation of independent loops pipe network subtense angle, the pipeline of independent loops pipe network subtense angle is connected to the water quality monitoring system of the water quality that is used for monitoring circuit water, the water yield that is used for water quality monitoring of taking a sample on the pipeline of independent loops pipe network subtense angle is considerably less, almost can ignore, generally just can finish moisturizing (under the special test situation by the retaining in the high-order exhaust replenishing water tank of water, moisturizing demand in the pipeline of independent loops pipe network subtense angle surpasses the available maximum rate of water make-up in the high-order exhaust water supply tank, can also pass through water charging system moisturizing in time).Therefore, generally speaking, water sample can directly enter trench through water quality monitoring system.But reduce the influence of the water yield of collection water sample to water in the pipeline of independent loops pipe network subtense angle in order to try one's best: described water quality monitoring system can not be made up of by the circulating line branch road water quality monitoring circulating line branch road and water quality monitoring; Described water quality monitoring circulating line branch road comprises conductivity meter, pH instrument and dissolved oxygen testing instrument in parallel, and the two ends of described water quality monitoring circulating line branch road are communicated with the pipeline of independent loops pipe network subtense angle respectively.Because monitored conductivity, water body pH monitoring and dissolved oxygen monitoring do not relate to chemical change, just can monitor, therefore, the water quality of water is basic identical in the water quality of the water sample of above-mentioned process monitoring and the pipeline of independent loops pipe network subtense angle, water sample after the monitoring can be got back in the pipeline of independent loops pipe network subtense angle by the water quality monitoring circulation loop once more, for the foregoing reasons, monitored conductivity, water body pH monitoring and dissolved oxygen monitoring can be adopted real-time monitoring, promptly monitor at any time, can not cause the unstability of the ducted current of monitoring independent loops pipe network subtense angle, wherein, described monitored conductivity, water body pH monitoring and dissolved oxygen monitoring can be adopted commercially available instrument and equipment.
Described water quality monitoring can not comprise residual chlorine detecting instrument, turbidity detector and granule content detector in parallel by the circulating line branch road, described water quality monitoring can not the circulating line branch road an end be communicated with the pipeline of independent loops pipe network subtense angle, the other end inserts trench.Because chlorine residue monitoring, turbidity monitoring and granule content monitoring need to add medicament, changed test water water quality in the circulating line, or diversion comes out to detect the back decompression, can't get back in the pipeline of independent loops pipe network subtense angle by pressure difference again, therefore, can only enter in the trench, wherein chlorine residue monitoring, turbidity monitoring and granule content monitoring can adopt commercially available instrument to monitor, in order to reduce the loss of water sample, the intermittently mode of periodic monitor is taked in the test of these three indexs.But the people for open, closing operation, also can open automatically according to initial time, the blanking time set, after reaching stabile test needed time and transmission and showing read signal, close automatically.
For various working such as the secondary sterilization (as chloramines, chlorine dioxide, ozone, sodium hypochlorite etc.) of simulating actual water supply network, xenobiotic pollutants invasion, water quality mutations, study its change of water quality rule, be connected with the medicament loading system on the pipeline of described independent loops pipe network subtense angle, described medicament loading system comprises the medicament filling jar and the medicament dispenser pump of series connection.Can optionally add medicament by the medicament loading system, wherein, the medicament dispenser pump is selected the delicate metering dispenser pump for use, and the delicate metering dispenser pump can be according to the amount of setting that adds the medicament of setting working time, thereby realizes the accurately joining day and the dosage of control medicament.The number of described medicament loading system can increase or reduce as required.When accurate closed circulation pipe network water quality comprehensive simulation test system carries out simulation test, need the water quality result that monitors according to water quality monitoring system sometimes, select medicament to add, preferably the number of medicament loading system is 1～5.Can also be according to the water quality result behind the water quality monitoring system monitoring adding medicament, as the monitoring of the DBPs after the sterilization.In addition, tracer also can add by the medicament loading system, can control the amount of the tracer of filling by the medicament dispenser pump exactly, the basis that guarantees each test conditions is consistent, before test by adding tracer, guarantee that flushing of pipeline is clean, thereby can not cause interference to the result of test, the proof test result's is accurate.
The pipeline of described independent loops pipe network subtense angle is provided with the outlet that is used for artificial water intaking sampling, and be provided with second valve in the exit position, when water sampling not, close second valve, when the needs water sampling, open second valve, can adopt the method for chemical reaction or the water quality index of instrumental method analytical sampling water directly from this outlet water sampling.
The utlity model has following advantage:
The utility model water tank closed circulation pipe network water quality comprehensive simulation test system that can be as the criterion provides the tap water of various water quality, to satisfy of the research requirement of accurate closed circulation pipe network water quality comprehensive simulation test system to the different quality water source, the different quality that occurs in the pipe network transportation with the tap water that dispatches from the factory of tackling current different local different quality changes and different secondary pollution problems, the problem of output water appearance in the pipe network transportation that can higher analogue simulation.
Bubble in the good emptying circulation pipe network of the high-order moisturizing exhaust of the utility model water tank energy, and can be with the water that is lost in the rapid supplementary test of actual participation circuit retaining in the high-order moisturizing exhaust water tank, when the liquid level in the high-order moisturizing exhaust water tank is low, can carry out moisturizing by water charging system, the water that makes circulation pipe network water quality comprehensive simulation test more be similar in reality and the circulation pipe network is mobile stable, thereby has guaranteed accuracy of experimental results.
The utility model water quality monitoring system and electromagnetic flowmeter can be realized the chlorine residue monitoring well, the turbidity monitoring, the granule content monitoring, the chlorine residue monitoring, the turbidity monitoring, granule content monitoring and flow monitoring, the parameter of water quality and the monitoring of running state in the circulation pipe network have been guaranteed, thereby the operating mode in the circulation pipe network there is comprehensive grasp, thereby more help studying clear physical change wherein, chemical change and biological the variation, as chlorine residue attenuation law and dynamic analysis, the model and the Biochemical Mechanism analysis of the formation of DBPs migration in the pipe network, the biological stability of water supply network and chemical stability, basic research such as microhabital provides the analog hardware platform of high emulation in pipe scale electrochemical mechanism and the pipe, for the prevention and control of water supply network secondary pollution provide the basic theory data.
The utility model medicament loading system can accurately be controlled filling time and filling dosage, can carry out accurate closed circulation pipe network water quality comprehensive simulation test secondary system, three chlorinations, the xenobiotic pollutants invasion, the simulation of operating modes such as water quality mutation, be used to study the medicament filling time, change of water quality rule after filling dosage and xenobiotic pollutants are invaded and potential hazard etc., and the validity of checking counter-measure, promoted the adaptability of circulation pipe network water quality comprehensive simulation test system, to transforming existing drinking water treatment flow process, development new technologies and new process, set up the method and the strategy of drinking water quality pollution control in the pipe network, provide safe and Wholesome Drinking Water to have important theory directive significance and engineering using value.
The accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system provides a good platform for the correlative study of the causative mechanism carrying out ductwork water quality and pollute, influence factor, controlling method, to transforming existing handling process, setting up method and strategy that ductwork water quality pollutes control.The accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system is to water quality stabilizer, preservative, pharmaceutical preparations such as sterilization sustained release agent, give novel disinfection technology of water treatment and means, new technologies such as novel tube application, new method, new tool, the hardware place that provides Security and efficiency evaluation to detect, be new technology, new method provides the influence of ductwork water quality and identifies and the evaluating standard ways and means, has crucial meaning and provides safe and Wholesome Drinking Water to have important theory directive significance and engineering using value for the research of feedwater quality problem.
Description of drawings
Fig. 1 is the structural representation of the accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system.
Embodiment
As shown in Figure 1, the accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system, the independent loops pipe network subtense angle that is connected with the water supply subtense angle by 1 water supply subtense angle and 4 pipelines 2 (hereinafter to be referred as pipeline 2) by the water supply subtense angle.
The water supply subtense angle comprises water tank 1, pipeline 2, mixed cycle pump 3, valve 4, valve 5, valve 19 and pipeline 6, water tank 1 is cylindrical, volume is 6000L, water tank 1 comprises the water outlet 101 of water tank 1, the water intake 102 of water tank 1, the medicament inlet 103 of water tank 1, the outlet 104 of water tank 1, the import 105 and the water tank dust cover 106 of water tank 1, and the water outlet 101 of water tank 1 is positioned at the sidewall near the water tank 1 of water tank 1 bottom surface; The water outlet 101 of water tank 1 is connected to valve 19, is used to control the open and close of water tank 1, and is connected with independent loops pipe network subtense angle by the pipeline 2 of serial connection valve 19; The water intake 102 of water tank 1 and the medicament inlet 103 of water tank 1 are positioned at the end face of water tank 1, the outlet 104 of water tank 1 is positioned at the sidewall near the water tank 1 of water tank 1 bottom surface, the import 105 of water tank 1 is positioned at the sidewall near the water tank 1 of water tank 1 end face, water tank dust cover 106 covers on the casing of water tank 1, and the top sidewall of water tank 1 is provided with exhaust small through hole (not mark).The outlet 104 of water tank 1 is communicated with the import of mixed cycle pump 3 by the pipeline 6 that is serially connected with valve 5, the outlet of mixed cycle pump 3 links to each other with the import 105 of water tank by the pipeline 6 that is serially connected with valve 4, the internal diameter of pipeline 2 is 150mm, and the internal diameter of pipeline 6 is 80mm.
Four independent loops pipe network subtense angles are the first independent loops pipe network subtense angle, the second independent loops pipe network subtense angle, the 3rd independent loops pipe network subtense angle and the 4th independent loops pipe network subtense angle.
The first independent loops pipe network subtense angle comprises pipeline 10, water charging system 11, emptying branch road 12, water quality monitoring system 13, the first medicament loading system 15, the second medicament loading system 16, valve 17 and the valve 18 of main circulating pump 7, electromagnetic flowmeter 8, high-order moisturizing exhaust water tank 9, independent loops pipe network subtense angle.Main circulating pump 7, electromagnetic flowmeter 8 and high-order moisturizing exhaust water tank 9 are connected successively by the pipeline 10 of independent loops pipe network subtense angle and are formed the loop, are being provided with valve 17 near electromagnetic flowmeter 8 places between main circulating pump 7 and the electromagnetic flowmeter 8.The end face of high-order moisturizing exhaust water tank 9 and water tank 1 is positioned at the horizontal highest level face of accurate closed circulation pipe network water quality comprehensive simulation test system; The placement location of main circulating pump 7 is positioned at the extreme lower position of accurate closed circulation pipe network water quality comprehensive simulation test system.The total length of the pipeline 10 of independent loops pipe network subtense angle is 78m, and the internal diameter of the pipeline of independent loops pipe network subtense angle is 150mm.
High-order moisturizing exhaust water tank 9 is cylindrical, volume is 400L, height is highly consistent with water tank 1, high-order moisturizing exhaust water tank 9 is built-in with circular piston-like floating head 903, area is slightly less than high-order moisturizing exhaust water tank 9, make and to leave certain space with the inwall of high-order moisturizing exhaust water tank 9 when piston-like floating head 903 levels are put into, the density of piston-like floating head 903 is less than the density of water, and the centre that piston-like floating head 903 is made by thin corrosion resistant plate is full of the closed piston type floating head of air.When high-order moisturizing exhaust water tank 9 is water-filled, piston-like floating head 903 under the effect of buoyancy of water along the rising of high-order moisturizing exhaust water tank 9 water levels or reduce and do piston up and down and move.Dust cover 904 is stamped at the top of high-order moisturizing exhaust water tank 9, the area of dust cover 904 is slightly larger than the end face of high-order moisturizing exhaust water tank 9, and on high-order moisturizing exhaust water tank 9 casings, obtain effectively to support, be provided with the small through hole (not marking) that is used for exhaust at sidewall, can successfully the air in the water in the pipeline 10 of independent loops pipe network subtense angle be discharged near the high-order moisturizing exhaust water tank 9 of high-order moisturizing exhaust water tank 9 end faces.Like this, the space exhaust is gone out between piston-like floating head that the air in the pipeline 10 of independent loops pipe network subtense angle can be by high-order moisturizing exhaust water tank 9 and tube wall, has also realized the standard sealing of this high position moisturizing exhaust water tank 9 is isolated by the piston-like floating head simultaneously.High-order moisturizing exhaust water tank 9 is provided with the water intake 901 of high-order moisturizing exhaust water tank and the water outlet 902 of high-order moisturizing exhaust water tank, the water intake 901 of high-order moisturizing exhaust water tank is positioned at high-order moisturizing exhaust water tank case Senior Three/one position, and the water outlet 902 of high-order moisturizing exhaust water tank is positioned at the high-order moisturizing exhaust water tank sidewall of close high-order moisturizing exhaust water tank bottom surface and is lower than the water intake 901 of high-order moisturizing exhaust water tank.The pipeline 10 of the independent loops pipe network subtense angle of the water intake 901 of close high-order moisturizing exhaust water tank 9 is provided with valve 18, valve 18 is a mortor operated valve, adopt the industrial process control valve, can adjust aperture, under the constant situation of main circulating pump 7 frequencies, the flow of the water of the aperture by adjusting valve 18 in also can controlling plumbing fixtures.
The pipeline 10 of independent loops pipe network subtense angle is provided with first outlet 1001 of the pipeline 10 of independent loops pipe network subtense angle, second outlet 1002 of the pipeline 10 of independent loops pipe network subtense angle, the triple feed inlet 1003 (water intake in loop) of the pipeline 10 of independent loops pipe network subtense angle, the 4th outlet 1004 of the pipeline 10 of independent loops pipe network subtense angle, first import 1005 of the pipeline 10 of independent loops pipe network subtense angle, the triple feed inlet 1007 of second import 1006 of the pipeline 10 of independent loops pipe network subtense angle and the pipeline 10 of independent loops pipe network subtense angle.
Water quality monitoring system 13 can not be made up of by circulating line branch road 1302 water quality monitoring circulating line branch road 1301 and water quality monitoring, water quality monitoring circulating line branch road 1301 is by conductivity meter (not marking), pH instrument (not marking) and dissolved oxygen testing instrument (not marking) three is in parallel is communicated with, and water quality monitoring circulating line branch road 1301 is first import 1005 of the pipeline of first outlet 1001 of the pipeline of the 20mm pipeline that inserts independent loops pipe network subtense angle and independent loops pipe network subtense angle by internal diameter.Water quality monitoring can not be composed in parallel by residual chlorine detecting instrument (not marking), turbidity detector (not marking) and granule content detector (not marking) three by circulating line branch road 1302, water quality monitoring can not circulation loop 1302 an end be first outlet 1001 that the pipeline of 20mm inserts the pipeline of independent loops pipe network subtense angle by internal diameter, the other end inserts trench.
Be provided with first valve 14 between the water supply subtense angle and the first independent loops pipe network subtense angle; First valve 14 is in parallel with the water charging system 11 that annotated by pipeline 1101, the experiment water of water charging system jar 1102, experiment water dispenser pump 1103 and electromagnetic flowmeter 1104 are composed in series, the outlet of electromagnetic flowmeter 1104 is communicated with the pipeline 10 of independent loops pipe network subtense angle by the pipeline 1101 of water charging system, and the inlet of experiment water filling jar 1102 is communicated with pipeline 2 by the pipeline 1101 of water charging system; The internal diameter of the pipeline 1101 of water charging system is 50mm, and the volume of experiment water filling jars 1102 is 100L, in a ball float inlet valve is arranged.
The water supply subtense angle links to each other with the second independent loops pipe network subtense angle, the 3rd independent loops pipe network subtense angle and the 4th independent loops pipe network subtense angle by above-mentioned Placement, and the second independent loops pipe network subtense angle, the 3rd independent loops pipe network subtense angle and the 4th independent loops pipe network subtense angle are communicated with the water supply subtense angle by B end, C end, D end on the pipeline 2 respectively.
Each independent loops pipe network subtense angle pipeline is all the same with equipment, difference, just be: the pipeline of independent loops pipe network subtense angle is different, the pipeline of the independent loops pipe network subtense angle of the first independent loops pipe network subtense angle is a ductile iron pipe, the pipeline of the independent loops pipe network subtense angle of the second independent loops pipe network subtense angle is the PE pipe, the pipeline of the independent loops pipe network subtense angle of the 3rd independent loops pipe network subtense angle is a Stainless Steel Tube, and the pipeline of the independent loops pipe network subtense angle of the 4th independent loops pipe network subtense angle is a ductile iron pipe.Ductile iron pipe is comparatively commonly used, the physics that the water quality of simulating in ductile iron pipe for water at circulation pipe network water quality integrated simulation experiment takes place in transportation process, chemistry and biological variation, meaning is very great, because the time that some circulation pipe network water quality comprehensive simulation test needs is long, and it is also many to utilize ductile iron pipe to do circulation pipe network water quality comprehensive simulation test, in order to satisfy the needs of test, the pipeline of the independent loops pipe network subtense angle of the pipeline of the independent loops pipe network subtense angle of the first independent loops pipe network subtense angle and the 4th independent loops pipe network subtense angle has all adopted ductile iron pipe in the test, to satisfy the test demand.
The concrete workflow of the accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system is as follows: at first, the water intake 102 by water tank 1 adds the former water of waiting to enter the pipe network loop around test more than 2000 liters and needing its change of water quality rule of research in water tank 1.This goes on foot available 2 kinds of modes, and first kind is the output water that directly ships waterworks to be studied with water storage vehicle, and the water intake 102 by water tank 1 directly pours into water tank 1.Second kind is the tap water that adds pipe network end more than 2000 liters by the water intake 102 of water tank 1 toward water tank 1, again according to testing the main water quality index that to study, to prepare the medicament of concentration (as adding the chlorination before sodium hypochlorite simulation tap water output water enters pipe network by the medicament inlet 103 of water tank 1, the change of water quality physics law of the tap water that research contains the variable concentrations chlorion after long-time long distance running flows in pipe network), pour into water tank 1 to realize the former water of artificial allotment test.Secondly, as required, can open valve 4 and valve 5, start mixed cycle pump 3, make that the water in the water tank 1 comes out from the outlet 104 of water tank 1, return the import 105 of water tank 1, make the water in the water tank 1 and the soup of injection mix.
Begin to start main circulating pump 7, main circulating pump 7 is the frequency conversion recycle pump, the circulation loop flow is realized by the frequency of regulating main circulating pump 7, water in the pipeline 10 is under the effect of main circulating pump 7, circulate, bubble in the pipeline 10 can be recycled water and take in the high-order moisturizing exhaust water tank 9 and drain: because it is poor to exist certain height between the water outlet 902 of the water intake 901 of high-order moisturizing exhaust water tank 9 and high-order moisturizing exhaust water tank 9, water is come in from the water intake 901 of high-order moisturizing exhaust water tank 9, water outlet 902 from high-order moisturizing exhaust water tank 9 is sucked away again, running orbit in high-order moisturizing exhaust water tank 9 from top to bottom, and after being recycled bubble that water brings into and coming in from the water intake 901 of high-order moisturizing exhaust water tank 9, though can under effect of inertia, can move to water outlet 902 directions of high-order moisturizing exhaust water tank 9 from top to bottom at the beginning with the circulating water running orbit, but because its density is very little, be subjected to very big rising buoyancy, can rise, height difference enough big between the water intake 901 of high-order moisturizing exhaust water tank 9 and the water outlet 902 apart from buffering under, can be again by water outlet 902 intake lines, but can exist certain space discharge by the inwall by piston-like floating head 903 and high-order moisturizing exhaust water tank 9 after come-up, and the through hole that is used for exhaust that final casing by high-order moisturizing exhaust water tank 9 is provided with is discharged.When the water level in the high-order moisturizing exhaust water tank 9 hangs down owing to the exhaust water level, can adopt water charging system 11 that it is carried out moisturizing, make high-order moisturizing exhaust water tank 9 keep certain high liquid level, prevent that air from entering into independent loops pipe network subtense angle again, electromagnetic flowmeter 8 can feed back the interior circular flow of pipe of the pipeline 10 of main circulating pump 7 VFC, the independent loops pipe network subtense angle of Gou Chenging can make the former water of test within the pipeline 10 circulate at a relative environment that relatively seals like this, the closed circulation that promptly is as the criterion, thereby various situations and the more approaching reality of resulting result of utilizing the simulation test of accurate closed circulation pipe network water quality comprehensive simulation test system to simulate.
Water quality monitoring system 13 can not be made up of by circulating line branch road 1302 water quality monitoring circulating line branch road 1301 and water quality monitoring, water quality monitoring circulating line branch road 1301 is not by online conductivity meter (marking), PH instrument (not marking) and dissolved oxygen testing instrument (not marking) three are in parallel to be communicated with, water quality monitoring circulating line branch road 1301 is first import 1005 of the pipeline of first outlet 1001 of the pipeline of the 20mm pipeline that inserts water quality monitoring independent loops pipe network subtense angle and independent loops pipe network subtense angle by the pipe inner diameter, can monitor at any time, because at monitored conductivity, water body pH monitoring and dissolved oxygen monitoring do not need to add reagent, do not relate to chemical change, the water quality of monitoring can be regarded as substantially and not change, can decompression yet, therefore, above-mentioned water sample can also be got back in the pipeline 10 by water quality monitoring circulating line branch road 1301 after monitoring, and monitoring can be carried out in the pipeline running at any time.Water quality monitoring can not be composed in parallel by online residual chlorine detecting instrument (not marking), turbidity detector (not marking) and granule content detector (not marking) three by circulating line branch road 1302, water quality monitoring can not circulating line branch road 1302 an end be first outlet 1001 that the pipeline of 20mm inserts the pipeline 10 of independent loops pipe network subtense angle by the pipe inner diameter, the other end inserts trench.Because the loop of this design relates to add medicament, changed test water water quality in the circulating line, or diversion comes out to detect the back decompression, can't get back in the circulation person in charge by pressure difference again, in order not influence, do not pollute the water quality in the pipeline 10, to be used for the chlorine residue monitoring, the water of the decompression of water sample after monitoring of turbidity monitoring and granule content monitoring, directly enter trench, like this, water in the pipeline 10 can reduce thereupon, though it is very little to be used for the water yield of the water sample that on-line monitoring sampling discharges, but open sampling continuously always, integration loss also can be very big, thereby influence test accuracy, therefore, in order to reduce the loss of water sample, the chlorine residue monitoring, can set as required the blanking time of turbidity monitoring and granule content monitoring, and generally be used for chlorine residue, being captured in of the water sample of turbidity and granule content on-line monitoring should not be too frequent on the basis of satisfying the test data requirement.Simultaneously, participation circuit retaining meeting in the high-order moisturizing exhaust water tank 9 replenishes (under the special test situation at any time, moisturizing demand in the pipeline 10 surpasses the available maximum rate of water make-up in the high-order exhaust water supply tank 9, can also pass through water charging system 11 moisturizing in time rapidly), thus make the circulating water operation in the pipeline 10 keep stable.
Conductivity, water body pH, dissolved oxygen, chlorine residue, turbidity and the granule content in the pipeline 10 of monitoring independent loops pipe network subtense angles with water quality monitoring system 13, can also be by the 4th outlet 1004 that has second valve of pipeline 10, open and close by second valve, carry out artificial sample water intaking, and then the water sample that collects transferred to carry out offline inspection in the analytical instrument.
Conductivity in the pipeline 10 of the independent loops pipe network subtense angle that monitors for water quality monitoring system 13, water body pH, dissolved oxygen, chlorine residue, outside the variation of turbidity and granule content, the accurate closed circulation pipe network of the utility model water quality comprehensive simulation test system can also directly add medicament in the former water of test in pipeline 10 by the first medicament loading system 15 and the second medicament loading system 16, can simulate the change of water quality process after secondary in the actual water supply network way adds disinfector (as the secondary chlorination), medicament delivery is advanced first medicament filling jar 1501 and second medicament filling jar 1601, then (as required at the first delicate metering dispenser pump 1502 and the second delicate metering dispenser pump 1602, the blanking time that set to add and each addition) effect under, render in the pipeline 10 of independent loops pipe network subtense angle.
At present, domestic waterworks all is the disposable disinfection by chlorine agent that adds capacity in output water, still can keep water quality preferably when the tap water of water quality reaching standard is carried arrival user fire hose head end through the long distance of pipe network when dispatching from the factory with maintenance.But output water has the long weak point that has to the conveyance conduit of pipe network user water tap end, for the tap water that makes long pipeline RT can keep water quality, may just need when dispatching from the factory, add more disinfector, the harm that will bring a lot of user's disinfection of tap water by products that connect than the short tube net to exceed standard, if add few, the user's tap water that connects than the long tube net might have bacterium, the organic substance water quality that exceeds standard again can't keep harm up to standard, and this is a problem of facing a difficult choice.Therefore, external a lot of advanced cities are analyzed by pipe network optimization, set up the equipment of secondary chlorination (also can add other disinfectors) in the appropriate node midway that connects than the long tube net,, can significantly reduce the residual harm of DBPs in the tap water to reduce output water chlorine dosage once.And the first medicament loading system 15 of the present utility model and the second medicament loading system 16 can be simulated the secondary of pipe network, the test that adds disinfector three times.By the 4th outlet 1004 the intakes that are connected to of water quality monitoring system 13 and the pipeline by independent loops pipe network subtense angle the water quality in the pipeline 10 of independent loops pipe network subtense angle is monitored again with second valve, thus its Disinfection Effect of the analysis that can quantize, the situation of sterilization back water quality and the attenuation change rule of sterilization product and DBPs.
Claims (10)
1. an accurate closed circulation pipe network water quality comprehensive simulation test system is characterized in that the independent loops pipe network subtense angle that comprises the water supply subtense angle and be connected with the water supply subtense angle;
Described water supply subtense angle comprises the water tank of bringing the mouth of a river, water outlet and medicament inlet into;
Described independent loops pipe network subtense angle is the loop that comprises by main circulating pump, electromagnetic flowmeter and the high-order moisturizing exhaust water tank of pipeline series connection; Described loop is provided with water intake, and the water intake in described loop is communicated with by the pipeline with first valve with the water outlet of water tank;
Described loop is connected with the water charging system that is used to the loop supplementing water, the water quality monitoring system that is used for discharging the emptying branch road of loop water and is used for the water quality of monitoring circuit water;
Described water charging system comprises the experiment water filling jar and the experiment water dispenser pump of series connection, described experiment water filling delivery side of pump and circuit communication, and the inlet of described experiment water filling jar is communicated with the water outlet of water tank;
The end face of described water tank and high-order moisturizing exhaust water tank approaches same horizontal plane, described horizontal plane is positioned at the horizontal extreme higher position of described accurate closed circulation pipe network water quality comprehensive simulation test system, and the placement location of described main circulating pump is lower than the placement location of water tank and high-order moisturizing exhaust water tank;
Described high-order moisturizing exhaust water tank comprises casing and is positioned at the piston-like floating head of casing, leaves the space between described piston-like floating head and the cabinet wall; The density of described piston-like floating head is less than the density of water.
2. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that the water outlet of described water tank is positioned at the bottom of water tank;
Described water tank is connected with the pipeline branch road of band mixed cycle pump, and the two ends of described pipeline branch road are communicated with water tank respectively;
The water tank dust cover that area is slightly larger than the water tank end face is stamped at the top of described water tank;
The top side wall of described water tank is provided with the through hole that is used for exhaust.
3. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 2 system is characterized in that between the two ends of described pipeline branch road height difference being arranged.
4. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that the wall of described high-order moisturizing exhaust water tank is vertical with the bottom surface;
The high-order moisturizing exhaust water tank dust cover that area is slightly larger than high-order moisturizing exhaust water tank end face is stamped at the top of described high-order moisturizing exhaust water tank;
The top side wall of described high-order moisturizing exhaust water tank is provided with the through hole that is used for exhaust.
5. according to claim 1 or 4 described accurate closed circulation pipe network water quality comprehensive simulation test systems, it is characterized in that the casing of described high-order moisturizing exhaust water tank is cylindrical.
6. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system, it is characterized in that, the water outlet of described high-order moisturizing exhaust water tank is positioned at the bottom of high-order moisturizing exhaust water tank, and the water intake of described high-order moisturizing exhaust water tank is higher than the water outlet of high-order moisturizing exhaust water tank and is lower than high-order moisturizing exhaust water tank case Senior Two/one position.
7. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that the pipeline that described independent loops pipe network subtense angle is a plurality of and a plurality of independent loops pipe network subtense angles is identical or different;
The pipeline of described independent loops pipe network subtense angle is ductile iron pipe, polyethylene pipe, copper pipe or Stainless Steel Tube.
8. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that described water quality monitoring system can not be made up of by the circulating line branch road water quality monitoring circulating line branch road and water quality monitoring;
Described water quality monitoring circulating line branch road comprises conductivity meter, pH instrument and dissolved oxygen testing instrument in parallel, and the two ends of described water quality monitoring circulating line branch road are communicated with the pipeline of independent loops pipe network subtense angle respectively;
Described water quality monitoring can not comprise residual chlorine detecting instrument, turbidity detector and granule content detector in parallel by the circulating line branch road, described water quality monitoring can not the circulating line branch road an end be communicated with the pipeline of independent loops pipe network subtense angle, the other end inserts trench.
9. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system, it is characterized in that, be connected with the medicament loading system on the pipeline of described independent loops pipe network subtense angle, described medicament loading system comprises the medicament filling jar and the medicament dispenser pump of series connection.
10. accurate closed circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that, the bottom surface of described main circulating pump is positioned at the floor level face of accurate closed circulation pipe network water quality comprehensive simulation test system; The pipeline of described independent loops pipe network subtense angle is provided with the outlet that is used for artificial water intaking sampling with second valve.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102230577A (en) * | 2011-05-19 | 2011-11-02 | 浙江大学 | Comprehensive water quality simulation test system for quasi-closed circulation pipe network |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102230577A (en) * | 2011-05-19 | 2011-11-02 | 浙江大学 | Comprehensive water quality simulation test system for quasi-closed circulation pipe network |
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