CN102289979A

CN102289979A - Double water source water supply circulating pipe network water quality integrative simulation test system

Info

Publication number: CN102289979A
Application number: CN2011101312384A
Authority: CN
Inventors: 王靖华; 王大伟; 柳景青; 李聪; 张土乔
Original assignee: Zhejiang University ZJU; Architectural Design and Research Institute of Zhejiang University Co Ltd
Current assignee: Zhejiang University ZJU; Architectural Design and Research Institute of Zhejiang University Co Ltd
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2011-12-21
Anticipated expiration: 2031-05-19
Also published as: CN102289979B

Abstract

The invention discloses a double water source water supply circulating pipe network water quality integrative simulation test system. The system comprises a water supply subsystem and independent circulating pipe network subsystems, wherein the water supply subsystem comprises a first water supply water tank and a second water supply water tank; the first water supply water tank is provided with a water inlet, a water outlet and a chemical filling hole; the second water supply water tank is communicated with the first water supply water tank by a pipeline with a second valve and is provided with a water inlet, a water outlet and a chemical filling hole; each independent circulating pipe network subsystem is a loop comprising a main circulating pump, an electromagnetic flowmeter and a high-level water replenishing and exhausting water tank which are connected in series by a pipeline; the loop is connected with a first pipeline branch for realizing closed circulation, a water replenishing system for replenishing water for the loop, an emptying branch for discharging the water in the loop and a water quality monitoring system; and meanwhile, chemical filling systems are also connected on the pipeline of the independent circulating pipe network subsystem. All the components of the system cooperate with each other and the system has the following advantages: the system has high simulation degree and is closer to the practical municipal water supply pipe network systems.

Description

A kind of double water source water supply circulation pipe network water quality comprehensive simulation test system

Technical field

The present invention relates to the test simulation systems technology field of potable water water supply network, particularly a kind of double water source water supply circulation pipe network water quality comprehensive simulation test system.

Background technology

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 quality 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 national standard, 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 hold-up 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 " urban water supply industry technical 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 feed 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 urban water supply safety case is analyzed and the guarantee countermeasure, water conservancy economy, 2001.5).According to city's results of regular determination pipe network coefficient of roughness 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 swivel 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 examination 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 cyclic test, and there is serious test problem of dtmf distortion DTMF in the real working condition ratio with actual pipeline.Therefore both at home and abroad many research institutions all are inclined to and adopt the test unit of circulation pipe network model that true pipe network is carried out high analogue simulation, provide panorama to show and analyze.

In the prior art, circulation pipe network simulation of water quality pilot system both domestic and external all adopts the open circulation mode, promptly is connected with a low level cistern in the circulating line loop, and current back by the road flow into cistern, pass through lift pump then, water is risen in the pipe system circulate.This cistern promptly is that the former water allotment of test pond has scavenging action again concurrently, but the general scale of building up of open circulation pipe network pilot system is less, cyclic design is all very simple, and closed circuit is shorter, can not calculate the circulation pipe network water quality comprehensive simulation test system of high emulation on the essential meaning.Exist mainly in design specifically that flow condition emulation is poor (all to be contacted with the air large tracts of land when water sample that at every turn circulates is flowed through cistern, can influence cycle water; And the Yuan Shui pond participates in the pipe network cyclic test, there is some difference for flow condition and actual pipe network), a lot of technical matterss such as condition control is not enough (as can't be to full-section pipe-flow pressurized control in the circulation line, can not water main pipe network that is virtually reality like reality pressure running environment arranged), simulated condition single (as can't realize the simulation that multi-water resources character is switched, double water source mixes all kinds of complex working conditions such as waters supply, external source contaminative water quality mutation, pipe network secondary chlorination), analog distortion are bigger.

Summary of the invention

The invention provides a kind of double water source water supply circulation pipe network water quality comprehensive simulation test system, in whole double water source water supply circulation pipe network water quality comprehensive simulation test system, each parts cooperatively interacts, and the fidelity height, can simulate actual water main pipe network system.

A kind of double water source water supply circulation pipe network water quality comprehensive simulation test system comprises water supply subsystem and the independent loops pipe network subsystem that is connected with the water supply subsystem by the pipeline with first valve;

Described water supply subsystem comprises first water tank and second water tank that is communicated with first water tank by the pipeline with second valve, and described first water tank and second water tank are equipped with water inlet, water delivering orifice and medicament inlet;

Described independent loops pipe network subsystem is the loop that comprises by main circulation pump, electromagnetic flowmeter and the high-order moisturizing exhaust water tank of pipeline series connection; Described loop is provided with water inlet, and the water inlet in described loop is communicated with the water supply subsystem;

Described loop is being respectively equipped with the 3rd valve and the 4th valve near the water inlet of high-order moisturizing exhaust water tank with near the position of the water delivering orifice of high-order moisturizing exhaust water tank;

Described loop is connected with by the branch road that is composed in series with the 3rd valve, high-order moisturizing exhaust water tank and the 4th valve first pipeline branch road with the 5th valve in parallel, is used to the water charging system of 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 supply subsystem;

The end face of described first water tank, second water tank and high-order moisturizing exhaust water tank approaches same surface level, described surface level is positioned at the horizontal extreme higher position of described double water source water supply circulation pipe network water quality comprehensive simulation test system, and the placement location of described main circulation pump is lower than the placement location of first water tank, second 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.

Described first water tank and second water tank provide the water source for double water source water supply circulation pipe network water quality comprehensive simulation test system, the water delivering orifice of the water delivering orifice of described first water tank and second water tank lays respectively at the bottom of first water tank and the bottom of second water tank, the i.e. basal surface position of first water tank or near the sidewall of first water tank of bottom surface, the sidewall of second water tank of the basal surface position of second water tank or close bottom surface, like this, water in first water tank and second water tank can flow in the independent loops pipe network subsystem better, is that independent loops pipe network subsystem supplies water better.The water source of first water tank and second water tank, water inlet by first water tank and second water tank after general employing tap water ships by direct water supply of the water inlet of first water tank and second water tank or water storage vehicle directly pours into first water tank and second water tank, also can be according to the test needs, the medicament inlet by first water tank and the medicament inlet of second water tank add medicament 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 first water tank dust cap that area is slightly larger than the first water tank end face is stamped at the top of described first water tank; The top side wall of described first water tank is provided with the through hole that is used for exhaust; The second water tank dust cap that area is slightly larger than the second water tank end face is stamped at the top of described second water tank; The top side wall of described second water tank is provided with the through hole that is used for exhaust.

Described first water tank is connected with the second pipeline branch road with the first mixing circulation pump, and the two ends of the described second pipeline branch road are communicated with first water tank respectively; Described second water tank is connected with the 3rd pipeline branch road with the second mixing circulation pump, and the two ends of described the 3rd pipeline branch road are communicated with second water tank respectively; The described second pipeline branch road is communicated with by having the 6th valve pipe with the 3rd pipeline branch road.All there is difference in height between the two ends of the described second pipeline branch road and between the two ends of the 3rd pipeline branch road respectively, be located at the first water tank bottom surface or near the first water tank sidewall of the first water tank bottom surface as an end of the second pipeline branch road, the other end of the second pipeline branch road is located at the first water tank end face or near the first water tank sidewall of the first water tank end face.Like this, just there is certain height poor between the two ends of the second pipeline branch road of first water tank, under the effect of the first mixing circulation pump, water in first water tank comes out from an end (i.e. the low side of the second pipeline branch road) of the second pipeline branch road, enter from the other end (promptly the second pipeline branch road is high-end) of the second pipeline branch road again, make the water in the water tank after dosing, can fully stir, finally mix that second water tank carries out mixing circulation based on same principle.

Switching by second valve can realize that the water source of first water tank mixes (the former water of test that two kinds of water sources can dispose the different proportion water yield by the experimental study requirement) with the different water sources of second water tank, the second pipeline branch road is communicated with by having the 6th valve pipe with the 3rd pipeline branch road, just can make water in first water tank and the water in second water tank under the effect of the first mixing circulation pump or the second mixing circulation pump, fully mix.The present invention can realize the test of the single water quality in a plurality of loops, simulates single character water source flow operating mode in pipe network; Also can realize heterogeneity water source, single loop switching tests, simulation is switched the heterogeneity water source and is used to study that the heterogeneity water source causes the change mechanism of the biochemical environment in pipe network inside and to the influence of water quality through operation back after a while.

Described main circulation pump provides power for the ducted water cycle operation of independent loops pipe network subsystem, make the ducted water of independent loops pipe network subsystem that stable flow velocity can be arranged, preferably, the bottom surface of main circulation pump is positioned at the floor level face of double water source water supply circulation pipe network water quality comprehensive simulation test system, so that when being full of the test water from the water supply subsystem in the pipeline of independent loops pipe network subsystem, the main circulation pump inner chamber body also can be full of water, and the startup main circulation pump provides power for the ducted water of independent loops pipe network subsystem.The control of flow velocity adopts the variable frequency control of main circulation pump to finish.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 subsystem be higher than the water tank liquid level, but the former water major part of the test in the water supply subsystem enters independently in the circulation pipe network subsystem 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 subsystem to reduce, in view of the water of sampling is considerably less, can finish moisturizing by the participation round-robin 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 subsystem is bigger, be that the pipeline of circulation pipe network subsystem 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 subsystem.

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 simulation system to get rid of the air in the pipeline, avoid occurring in the closed circuit 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 double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system, high-order moisturizing exhaust water tank in the independent loops pipe network subsystem 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 present invention 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 xsect and the solid that area all equates.The piston-like floating head that more convenient like this shape is similar to xsect, area is slightly less than xsect can be done the piston motion by in the vertical direction, simultaneously, the high-order moisturizing exhaust water tank dust cap 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 dust cap 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 recirculated water in the independent loops pipe network subsystem can be discharged smoothly again.Preferably, it is cylindrical can selecting the casing of high-order moisturizing exhaust water tank.

In order to get rid of the bubble in the water in the independent loops pipe network subsystem circulation line better, the water delivering orifice 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 inlet of described high-order moisturizing exhaust water tank is higher than the water delivering orifice 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 inlet of high-order moisturizing exhaust water tank just is higher than the water delivering orifice of high-order moisturizing exhaust water tank, and the ducted water of independent loops pipe network subsystem just has certain drop when flowing through, and bubble will rise because density is little like this, easily discharges.

Described loop is being respectively equipped with the 3rd valve and the 4th valve near the water inlet of high-order moisturizing exhaust water tank with near the position of the water delivering orifice of high-order moisturizing exhaust water tank; Described loop is connected with the first pipeline branch road with the 5th valve of the branch road parallel connection that is composed in series by the 3rd valve, high-order moisturizing exhaust water tank and the 4th valve; Based on above-mentioned design, the present invention just can realize switching between accurate closed circulation and the closed circulation by the switching between each valve, when closing the 3rd valve and the 4th valve, open the 5th valve, just can realize closed circulation completely, and, the 5th valve is the process variable valve, can be under the constant situation of main circulation pump frequency, regulate " full-section pipe-flow " pressure in the control closed circulation loop by aperture, can simulate the different hydraulic pressure of the water quality transportation of actual pipe network transportation.

The pipeline that described independent loops pipe network subsystem is a plurality of and a plurality of independent loops pipe network subsystems is identical or different; The pipeline of described independent loops pipe network subsystem is ductile iron pipe, polyethylene pipe (PE pipe), copper pipe or stainless-steel tube.The pipeline of independent loops pipe network subsystem 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 present invention has 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 subsystem, 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 subsystem among the present invention can link to each other with a plurality of independent loops pipe network subsystems, a plurality of independent loops pipe network subsystems all can independently be tested, link to each other with four independent loops pipe network subsystems as a water supply subsystem, promptly the pipeline of a water supply subsystem connection independent loops pipe network subsystem is the independent loops pipe network subsystem of ductile iron pipe, the pipeline of independent loops pipe network subsystem is the independent loops pipe network subsystem of PE pipe, the pipeline of independent loops pipe network subsystem is that the independent loops pipe network subsystem of stainless-steel tube and the pipeline of independent loops pipe network subsystem are the independent loops pipe network subsystem of copper pipe.

In order to monitor the ducted water quality situation of independent loops pipe network subsystem, the pipeline of independent loops pipe network subsystem is connected to the water quality monitoring system of the water quality that is used for monitoring circuit water, sampling is used for the water yield of water quality monitoring on the pipeline of independent loops pipe network subsystem, be 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 subsystem 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).Under the bigger situation of moisturizing demand, can pass through water charging system moisturizing in time.Therefore, generally speaking, water sample can directly enter trench through water quality monitoring system.But reduce of the influence of the water yield of collection water sample in order to try one's best to water in the pipeline of independent loops pipe network subsystem; 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 DO tester 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 subsystem respectively.Because monitored conductivity, water body pH monitoring and dissolved oxygen DO 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 subsystem, water sample after the monitoring can be got back in the pipeline of independent loops pipe network subsystem by the water quality monitoring closed circuit once more, for the foregoing reasons, monitored conductivity, water body pH monitoring and dissolved oxygen DO 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 subsystem, wherein, described monitored conductivity, water body pH monitoring and dissolved oxygen DO 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 subsystem, 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 come out to detect the back decompression can't get back in the pipeline of independent loops pipe network subsystem by pressure differential 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, and 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, shutoff operation, also can open automatically according to initial time, the interval time set, after reaching stable testing required 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 subsystem, 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 double water source water supply 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 agent also can add by the medicament loading system, can control the amount of the tracer agent of filling by the medicament dispenser pump exactly, the basis that guarantees each test condition is consistent, before test by adding tracer agent, guarantee that flushing of pipeline is clean, thereby can not cause interference to the result of test, the warranty test result's is accurate.

The pipeline of described independent loops pipe network subsystem is provided with the outlet that is used for artificial water intaking sampling, and be provided with the 7th valve in the exit position, when water sampling not, close the 7th valve, when the needs water sampling, open the 7th valve, can adopt the method for chemical reaction or the water-quality guideline of instrumental method analytical sampling water directly from this outlet water sampling.

The present invention has following advantage:

The present invention's water supply subsystem that subsystem adopts double water source to supply water that supplies water, and design has single circulation to stir and whole circulation stirring system, single circulation stirring system can guarantee the even of water quality in each water tank; Whole circulation stirring system can stir the water cycle in two water tanks, guarantees that different former water can fully mix in proportion in two water tanks.The water supply subsystem can provide the tap water of various water quality for the double water source circulation pipe network water quality comprehensive simulation test system that supplies water, and provide heterogeneity water source switching tests, can satisfy of the research requirement of 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 the local different quality of current difference changes and different secondary pollution problems, the problem that output water that can higher analogue simulation reality occurs in the pipe network transportation can also satisfy the assessment before urban water resource is changed and detect needs.

Bubble in the good emptying circulation pipe network of the high-order moisturizing exhaust of the present invention water tank energy, and can be with the water that is lost in the rapid complementary testing of actual participation round-robin 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 actual and the circulation pipe network is mobile stable, thereby has guaranteed accuracy of experimental results.

The present invention is used to realize that the first pipeline branch road of closed circulation just can realize switching between accurate closed circulation and the closed circulation by the switching between the related valve, guarantee requiring under the prerequisite of the every index monitoring of water quality, make the present invention realize that the closed circulation loop simulates actual water supply line.And, regulate by the process control valve opening on the closed circulation branch road, can be under the constant situation of main pump frequency, " full-section pipe-flow " pressure in the control closed circulation loop.Make the every result who carries out test simulation by double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system press dry pipe feedwater transportation near actual to greatest extent, help the correlative study of causative mechanism that ductwork water quality pollutes, influence factor, control method, help better to be familiar with physical change, biological change and chemical change of potable water in pipe network.

Water quality monitoring system of the present invention 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 status 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 Biochemical Mechanism 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.

Medicament loading system of the present invention can accurately be controlled filling time and filling dosage, can carry out double water source water supply circulation pipe network water quality comprehensive simulation test secondary system chlorination, 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 double water source water supply circulation pipe network water quality comprehensive simulation test system, to transforming existing drinking water treatment flow process, development new technologies and new technology, 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.

Double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system provides a good platform for the correlative study of the causative mechanism carrying out ductwork water quality and pollute, influence factor, control method, to transforming existing treatment scheme, setting up method and strategy that ductwork water quality pollutes control.Double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system is for to water quality stabilizer, antiseptic, 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 double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system.

Embodiment

As shown in Figure 1, double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system, by the independent loops pipe network subsystem that 1 water supply subsystem and 4 pipelines 2 by the water supply subsystem (hereinafter to be referred as pipeline 2) are connected with the water supply subsystem, four independent loops pipe network subsystems are the first independent loops pipe network subsystem, the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem.

The water supply subsystem comprises first water tank 1, second water tank 22, pipeline 2, the first mixing circulation pump 3, valve 4, valve 5, valve 19, the second mixing circulation pump 23, valve 24, valve 25, valve 26, second valve 27, the 6th valve 28, valve 29, valve 30, valve 31, valve 32, valve 33 and pipeline 6, first water tank 1 is cylindrical, volume is 6000L, first water tank 1 comprises the water delivering orifice 101 of first water tank 1, the water inlet 102 of first water tank 1, the medicament inlet 103 of first water tank 1, the outlet 104 of first water tank 1, the import 105 of first water tank 1 and the first water tank dust cap 106, the water delivering orifice 101 of first water tank 1 is positioned at the sidewall near first water tank 1 of first water tank, 1 bottom surface, and the water delivering orifice 101 of first water tank 1 is connected with independent loops pipe network subsystem by the pipeline 2 that is serially connected with valve 19; The medicament inlet 103 of the water inlet 102 of first water tank 1 and first water tank 1 is positioned at the end face of first water tank 1, the outlet 104 of first water tank 1 is positioned at the sidewall near first water tank 1 of first water tank, 1 bottom surface, the import 105 of first water tank 1 is positioned at the sidewall near first water tank 1 of first water tank, 1 end face, the first water tank dust cap 106 covers on the casing of first water tank 1, and the top sidewall of first water tank 1 is provided with exhaust hole (not mark).The outlet 104 of first water tank 1 is communicated with the import of the first mixing circulation pump 3 by the pipeline 6 that is serially connected with valve 5, the outlet of the first mixing circulation pump 3 links to each other with the import 105 of first 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.

Second water tank 22 is cylindrical, volume is 6000L, second water tank 22 comprises the water delivering orifice 2201 of second water tank 22, the water inlet 2202 of second water tank 22, the medicament inlet 2203 of second water tank 22, the outlet 2204 of second water tank 22, the import 2205 of second water tank 22 and and the second water tank dust cap 2206, the water delivering orifice 2201 of second water tank 22 is positioned at the sidewall near second water tank 22 of second water tank, 22 bottom surfaces, and the water delivering orifice 2201 of second water tank 22 is connected with independent loops pipe network subsystem by the pipeline 2 that is serially connected with valve 26; The medicament inlet 2203 of the water inlet 2202 of second water tank 22 and second water tank 22 is positioned at the end face of second water tank 22, the outlet 2204 of second water tank 22 is positioned at the sidewall near second water tank 22 of second water tank, 22 bottom surfaces, and the import 2205 of second water tank 22 is positioned at the sidewall near second water tank 22 of second water tank, 22 end faces.The second water tank dust cap 2206 covers on the casing of second water tank 22, and the top sidewall of second water tank 22 is provided with exhaust small through hole (not mark).The outlet 2204 of second water tank 22 is communicated with the import of the second mixing circulation pump 23 by the pipeline 6 that is serially connected with valve 25, and the outlet of the second mixing circulation pump 23 links to each other with the import 2205 of second water tank by the pipeline 6 that is serially connected with valve 24.First water tank 1 and second water tank 22 pipeline 6 by being serially connected with second valve 27 is communicated with, and is communicated with by the pipeline 6 that is connected to the 6th valve 28 between the outlet of valve 4 and the second mixing circulation pump 3 with between the outlet of valve 24 and the second mixing circulation pump 23.

The water delivering orifice 101 of first water tank 1 is by the pipeline 2 and the first independent loops pipe network subsystem, the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem are communicated with, the water delivering orifice 2201 of second water tank 22 is by the pipeline 2 and the first independent loops pipe network subsystem, the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem are communicated with, be provided with valve 29 on the pipeline 2 respectively successively, valve 30, valve 31, valve 32 and valve 33, make no matter be the single water source of first water tank 1 and second water tank 22, or the double water source that first water tank 1 mixes with second water tank 22 can both successfully arrive the first independent loops pipe network subsystem, the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem.

The first independent loops pipe network subsystem 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, the 3rd valve 18, the 4th valve 20 and the 5th valve 21 of main circulation pump 7, electromagnetic flowmeter 8, high-order moisturizing exhaust water tank 9, independent loops pipe network subsystem.Main circulation 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 subsystem and are formed the loop, are being provided with valve 17 near electromagnetic flowmeter 8 places between main circulation pump 7 and the electromagnetic flowmeter 8.The total length of the pipeline 10 of independent loops pipe network subsystem is 78m, and the internal diameter of the pipeline 10 of independent loops pipe network subsystem is 150mm.

The end face of first water tank 1, second water tank 22 and high-order moisturizing exhaust water tank 9 is positioned at the horizontal highest level face of double water source water supply circulation pipe network water quality comprehensive simulation test system; The placement location of main circulation pump 7 is positioned at the extreme lower position of double water source water supply circulation pipe network water quality comprehensive simulation test system.

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, 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 cap 904 is stamped at the top of high-order moisturizing exhaust water tank 9, the area of dust cap 904 is slightly larger than the end face of high-order moisturizing exhaust water tank 9, obtain effectively to support by high-order moisturizing exhaust water tank 9 casings, 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 circulation line be discharged near the high-order moisturizing exhaust water tank 9 of high-order moisturizing exhaust water tank 9 end faces.High-order moisturizing exhaust water tank 9 is provided with the water inlet 901 of high-order moisturizing exhaust water tank and the water delivering orifice 902 of high-order moisturizing exhaust water tank, the water inlet 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 delivering orifice 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 inlet 901 of high-order moisturizing exhaust water tank.The water inlet 901 of high-order moisturizing exhaust water tank and the water delivering orifice 902 of high-order moisturizing exhaust water tank insert the loop by the pipeline 10 of independent loops pipe network subsystem, the pipeline 10 of the independent loops pipe network subsystem of the water inlet 901 of close high-order moisturizing exhaust water tank 9 is provided with the 3rd valve 18, the pipeline 10 of the independent loops pipe network subsystem of the water delivering orifice 902 of close high-order moisturizing exhaust water tank 9 is provided with the 4th valve 20, the 3rd valve 18 is a motorized valve, promptly adopt the industrial process operation valve, adopt the industrial process operation valve, can adjust aperture, under the constant situation of main circulation pump 7 frequencies, the flow of the water of the aperture by adjusting the 3rd valve 18 in also can controlling plumbing fixtures.Can be by adjusting the flow of the water in the more accurate control loop of aperture.The 5th valve 21 inserts independent loops pipe network subsystem by the pipeline 10 of independent loops pipe network subsystem, is serially connected with the pipeline 10 and the branch road parallel connection of by three valve 18, high-order moisturizing exhaust water tank 9 and four valve 20 being connected formed of the first pipeline branch road of the 5th valve 21 by independent loops pipe network subsystem.Can be under the constant situation of main circulation pump 7 frequencies, flow by the water in the aperture controlling plumbing fixtures of adjusting the 5th valve 21, thereby realize ducted pressure control, for pressure monitoring, can adopt on the pipeline 10 of independent loops pipe network subsystem the 5th valve 21 vicinity that the size that tensimeter is monitored hydraulic pressure in the pipeline 10 of independent loops pipe network subsystem is housed, aperture by the 5th valve 21 is regulated " full-section pipe-flow " pressure in the control closed circulation loop, thereby makes double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention system can simulate the actual water quality that press dry the transportation of pipe pipe network that has.

The pipeline 10 of independent loops pipe network subsystem is provided with first outlet 1001 of the pipeline 10 of independent loops pipe network subsystem, second outlet 1002 of the pipeline 10 of independent loops pipe network subsystem, the triple feed inlet 1003 (water inlet in loop) of the pipeline 10 of independent loops pipe network subsystem, the 4th outlet 1004 of the pipeline 10 of independent loops pipe network subsystem, first import 1005 of the pipeline 10 of independent loops pipe network subsystem, the triple feed inlet 1007 of second import 1006 of the pipeline 10 of independent loops pipe network subsystem and the pipeline 10 of independent loops pipe network subsystem.

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 online conductivity meter (not marking), pH instrument (not marking) and dissolved oxygen DO tester (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 subsystem and independent loops pipe network subsystem 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 closed circuit 1302 an end be first outlet 1001 that the pipeline of 20mm inserts the pipeline of independent loops pipe network subsystem by internal diameter, the other end inserts trench.

Second outlet 1002 of the pipeline 10 of independent loops pipe network subsystem is connected to the emptying branch road 12 that atmospheric valve 1201 and system's blow-down pipe 1202 are composed in series, the triple feed inlet 1003 of the pipeline of independent loops pipe network subsystem is communicated with the water delivering orifice 101 of water tank by pipeline 2, the 4th outlet 1004 of the pipeline 10 of independent loops pipe network subsystem is connected to the intake with the 7th valve (not mark), when gathering water sample, open the 7th valve, carry out required test after gathering water sample, close the 7th valve at other times, second import 1006 of the pipeline 10 of independent loops pipe network subsystem is connected to the first medicament loading system 15 that first medicament filling jar 1501 and first delicate metering dispenser pump 1502 is composed in series, and the triple feed inlet 1007 of the pipeline 10 of independent loops pipe network subsystem is connected to the second medicament loading system 16 that second medicament filling jar 1601 and second delicate metering dispenser pump 1602 is composed in series.

Be provided with first valve 14 between the water supply subsystem and the first independent loops pipe network subsystem; 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 subsystem 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 water intaking valve is arranged.

The water supply subsystem links to each other with the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem by above-mentioned connected mode, and the second independent loops pipe network subsystem, the 3rd independent loops pipe network subsystem and the 4th independent loops pipe network subsystem are communicated with the water supply subsystem by B end, C end, D end on the pipeline 2 respectively.

Each independent loops pipe network subsystem pipeline is all the same with equipment, difference, just be: the pipeline of independent loops pipe network subsystem is different, the pipeline of the independent loops pipe network subsystem of the first independent loops pipe network subsystem is a ductile iron pipe, the pipeline of the independent loops pipe network subsystem of the second independent loops pipe network subsystem is the PE pipe, the pipeline of the independent loops pipe network subsystem of the 3rd independent loops pipe network subsystem is a stainless-steel tube, and the pipeline of the independent loops pipe network subsystem of the 4th independent loops pipe network subsystem 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 comprehensive simulation test takes place in transportation, 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 subsystem of the pipeline of the independent loops pipe network subsystem of the first independent loops pipe network subsystem and the 4th independent loops pipe network subsystem has all adopted ductile iron pipe in the test, to satisfy the test demand.

The concrete workflow of double water source water supply circulation pipe network water quality comprehensive simulation test system of the present invention is as follows: at first, the water inlet 102 by water tank 1 adds the former water of waiting to enter the pipe network cyclic 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 inlet 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 inlet 102 of water tank 1 toward water tank 1, again according to testing the main water-quality guideline 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 mixing circulation 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.

Water inlet 2202 by water tank 22 adds the former water of waiting to enter the pipe network cyclic test more than 2000 liters and needing its change of water quality rule of research in water tank 22.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 inlet 2202 by water tank 22 directly pours into water tank 22.Second kind is the tap water that adds pipe network end more than 2000 liters by the water inlet 2202 of water tank 22 toward water tank 22, again according to testing the main water-quality guideline 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 2203 of water tank 22, 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 22 to realize the former water of artificial allotment test.Secondly, as required, can open valve 24 and valve 25, start mixing circulation pump 23, make the water in the water tank 22 come out, return the import 2205 of water tank 22, make the water in the water tank 22 and the soup of injection mix from the outlet 2204 of water tank 22.

Can also be as required, water in the water in first water tank 1 and second water tank 22 is mixed, as Open valve 5, the 6th valve 28, the valve 24 and second valve 27, valve-off 4 and valve 25, start the first mixing circulation pump 3, under the effect of the first mixing circulation pump 3, water in first water tank 1 comes out from the outlet 105 of first water tank 1, through the first mixing circulation pump 3, through the 6th valve 28, reach second water tank 22 through valve 24, water in second water tank 22 reaches first water tank through second valve 27, water cycle in this way, reach the purpose that water in first water tank and the water in second water tank mix, another kind of embodiment is an Open valve 25, the 6th valve 28 and valve 4, valve-off 5 and valve 24 start the second mixing circulation pump 23.

Open first valve 14, valve 17, the 3rd valve 18 and the 4th valve 20, selectively opened valve 19, valve 26, valve 29, valve 30, valve 31, the keying combination of valve 32 and valve 33, make the water tank 1 of winning, second water tank 22 or first water tank 1 and second water tank, 22 mixed water pour into pipeline 10 (being the pipeline 10 of independent loops pipe network subsystem) under the effect of gravity, treat that high-order exhaust replenishing water tank of water 9 is with invariable during for same surface level with the liquid level of first water tank 1 of its pipeline connection or second water tank 22, can assert to be full of substantially in test water (also being mixed with the air bubble that much can't the discharge certainly) pipeline 10 and be full of water, close first valve 14 then (when simulation heterogeneity water source switching tests, can in process of the test, open first valve 14 once more, and on one side open atmospheric valve 1201 and discharge water, the selectively opened valve 19 in one side, valve 26, valve 29, valve 30, valve 31, the keying combination of valve 32 and valve 33, close the water tank supply channel of initial selected, being communicated with another water tank pipeline pours water in pipeline 10), open water charging system 11, under the effect of water charging system 11, the circulation pipe network subsystem is carried out moisturizing, make the attain to a high place higher liquid level at high 3/4 place of exhaust replenishing water tank of water case of the former water liquid level of test in the high-order exhaust replenishing water tank of water (allow this water tank accumulate the former water of more test as far as possible, generally can be higher than the water tank liquid level), water charging system 11 is closed afterwards, can open once more according to the needs of moisturizing.Former water in the water supply subsystem can be transported to experiment water filling jar 1102 by the pipeline 2 that is communicated with it under gravitional force, the ball-cock assembly that the water level rising drives in it in jar is closed this jar water inlet, and the retaining in the filling jar 1102 can be injected in the pipeline 10 of independent loops pipe network subsystem under the effect of the experiment water dispenser pump 1103 of water charging system 11, electromagnetic flowmeter 1104 can show the refill flow of testing water, and the accumulation refill flow.

Begin to start main circulation pump 7, main circulation pump 7 is the frequency conversion ebullator, the closed circuit flow is realized by the frequency of regulating main circulation pump 7, water in the pipeline 10 is under the effect of main circulation 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 delivering orifice 902 of the water inlet 901 of high-order moisturizing exhaust water tank 9 and high-order moisturizing exhaust water tank 9, water is come in from the water inlet 901 of high-order moisturizing exhaust water tank 9, water delivering orifice 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 inlet 901 of high-order moisturizing exhaust water tank 9, though can under inertia effect, can move to water delivering orifice 902 directions of high-order moisturizing exhaust water tank 9 from top to bottom at the beginning with the recirculated water running orbit, but because its density is very little, be subjected to very big rising buoyancy, can rise, difference in height enough big between the water inlet 901 of high-order moisturizing exhaust water tank 9 and the water delivering orifice 902 apart from buffering under, can be again by water delivering orifice 902 upstream 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 subsystem again, electromagnetic flowmeter 8 can feed back the interior circular flow of pipe of the pipeline 10 of main circulation pump 7 variable frequency control, the independent loops pipe network subsystem of Gou Chenging can make the former water of test within the pipeline 10 circulate at a relative environment that relatively seals like this, closed circulation promptly is as the criterion, can also be by opening the 5th valve 21, close the 3rd valve 18 and the 4th valve 20, make recirculated water switch to closed circulation from the standard sealing, after switching to closed circulation, can directly utilize water charging system 11 to carry out moisturizing, thus various situations and the more approaching reality of resulting result of utilizing the simulation test of double water source water supply 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 DO tester (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 subsystem and independent loops pipe network subsystem by the pipe interior diameter, can monitor at any time, because at monitored conductivity, water body pH monitoring and dissolved oxygen DO 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 operational process 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 closed circuit 1302 an end be first outlet 1001 that the pipeline of 20mm inserts the pipeline 10 of independent loops pipe network subsystem by the pipe interior 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 differential 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 interval 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 figure requirement.Simultaneously, participation round-robin 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 recirculated water operation in the pipeline 10 keep stable.

Conductivity, water body pH, dissolved oxygen DO, chlorine residue, turbidity and the granule content in the pipeline 10 of monitoring independent loops pipe network subsystems with water quality monitoring system 13, can also be by the 4th outlet 1004 that has the 7th valve of pipeline 10, open and close by the 7th 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 subsystem that monitors for water quality monitoring system 13, water body pH, dissolved oxygen DO, chlorine residue, outside the variation of turbidity and granule content, double water source water supply circulation pipe network water quality comprehensive simulation test of the present invention 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 sanitizer (as the secondary chlorination), medicament delivery is advanced first medicament filling jar 1501 and second medicament delivery and is advanced medicament filling jar 1601, then (as required at the first delicate metering dispenser pump 1502 and the second delicate metering dispenser pump 1602, the interval time that set to add and each addition) effect under, render in the pipeline 10 of independent loops pipe network subsystem.

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 swivel end, for the tap water that makes long pipeline retention time can keep water quality, may just need when dispatching from the factory, add more sanitizer, the harm that will bring a lot of user's disinfection of tap water accessory substances 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 organism 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 sanitizers) 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 invention and the second medicament loading system 16 can be simulated the secondary of pipe network, the test that adds sanitizer 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 subsystem the water quality in the pipeline 10 of independent loops pipe network subsystem is monitored again with the 7th 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

1. a double water source water supply circulation pipe network water quality comprehensive simulation test system is characterized in that, comprises water supply subsystem and the independent loops pipe network subsystem that is connected with the water supply subsystem by the pipeline with first valve;

Described loop is connected with the first pipeline branch road with five valve in parallel with the branch road that is composed in series by the 3rd valve, high-order moisturizing exhaust water tank and the 4th valve, is used to the water charging system of 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;

2. double water source water supply circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that the water delivering orifice of described first water tank is positioned at the bottom of first water tank;

The first water tank dust cap that area is slightly larger than the first water tank end face is stamped at the top of described first water tank;

The top side wall of described first water tank is provided with the through hole that is used for exhaust;

The water delivering orifice of described second water tank is positioned at the bottom of second water tank;

The second water tank dust cap that area is slightly larger than the second water tank end face is stamped at the top of described second water tank;

The top side wall of described second water tank is provided with the through hole that is used for exhaust.

3. double water source water supply circulation pipe network water quality comprehensive simulation test according to claim 1 system, it is characterized in that, described first water tank is connected with the second pipeline branch road with the first mixing circulation pump, and the two ends of the described second pipeline branch road are communicated with first water tank respectively;

Described second water tank is connected with the 3rd pipeline branch road with the second mixing circulation pump, and the two ends of described the 3rd pipeline branch road are communicated with second water tank respectively;

Difference in height is all arranged between the two ends of the described second pipeline branch road and between the two ends of the 3rd pipeline branch road;

The described second pipeline branch road is communicated with by the pipeline that has the 6th valve with the 3rd pipeline branch road.

4. double water source water supply 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 cap 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 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 double water source water supply 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. double water source water supply circulation pipe network water quality comprehensive simulation test according to claim 1 system, it is characterized in that, the water delivering orifice of described high-order moisturizing exhaust water tank is positioned at the bottom of high-order moisturizing exhaust water tank, and the water inlet of described high-order moisturizing exhaust water tank is higher than the water delivering orifice of high-order moisturizing exhaust water tank and is lower than high-order moisturizing exhaust water tank case Senior Two/one position.

7. double water source water supply 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 subsystem is a plurality of and a plurality of independent loops pipe network subsystems is identical or different;

The pipeline of described independent loops pipe network subsystem is ductile iron pipe, polyethylene pipe, copper pipe or stainless-steel tube.

8. double water source water supply 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 DO tester 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 subsystem 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 subsystem, the other end inserts trench.

9. double water source water supply 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 subsystem, described medicament loading system comprises the medicament filling jar and the medicament dispenser pump of series connection.

10. double water source water supply circulation pipe network water quality comprehensive simulation test according to claim 1 system is characterized in that the bottom surface of described main circulation pump is positioned at the floor level face of double water source water supply circulation pipe network water quality comprehensive simulation test system;

The pipeline of described independent loops pipe network subsystem is provided with the outlet that is used for artificial water intaking sampling with the 7th valve.