CN207908429U - A kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement - Google Patents

Abstract

The utility model belongs to ammonia nitrogen on-line monitoring analysis fields of measurement, and in particular to a kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement.A kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement, including water sample injection pipe, cleaning solution injection pipe, auxiliary liquid injection pipe, absorbing liquid injection pipe, solenoid valve 1, solenoid valve 2, solenoid valve 3, solenoid valve 4, peristaltic pump 1, quantity tube, solenoid valve 5, quantitative lightpipe optics to penetrating metering device, peristaltic pump 2, it is characterized in that, quantity tube is cylindrical transparent tube body, and quantity tube itself is vertically-mounted.The usefulness of the utility model is that have 4 kinds of feed liquor selections：Ammonia electrode can be cleaned automatically, auxiliary liquid can be added, ammonia electrode is promoted quickly to measure, absorbing liquid can be added, and promote ammonia conversion；Feed liquor metering peristaltic pump 1, goes out liquid feed flow peristaltic pump 2, and two peristaltic pumps work independently, do not interfere with each other；For gauge line there are two types of quantitative choosing, optics is quantitative accurate and reliable to penetrating metering device.

Description

A kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement

Technical field

The utility model belongs to ammonia nitrogen on-line monitoring analysis fields of measurement, and in particular to a kind of suitable ammonia nitrogen on-line measurement The two double quatitative liquid supplying devices of five valves of pump.

Background technology

Ammonia-nitrogen content in water body is the important indicator for judging water pollution.Ammonia nitrogen in water body is measured with ammonia gas-sensing electrode to contain Amount, is in recent years《Water and effluent monitoring analysis method》In tentative method.Electrode method measures ammonia nitrogen by the U.S.《Water and waste water inspection Mark standard 2005》It includes, becomes acknowledged measurement standard.Electrode method measures the ammonia gas-sensing electrode of the key equipment of ammonia nitrogen. Ammonia gas-sensing electrode itself is a combination electrode, and combination electrode is placed in the plastic bushing for the ammonium chloride internal-filling liquid for filling 0.1mg/L In, PH glass electrodes are indicator electrode, and silver silver chloride electrode is reference electrode.The bottom of plastic bushing has an only ammonia that can lead to The hydrophobic microporous ventilated membrane crossed, the hydrophobic microporous ventilated membrane are also referred to as ammonia air-sensitive film, and ammonia air-sensitive film is the key that ammonia gas-sensing electrode portion Part.The operation principle of ammonia gas-sensing electrode, ammonia gas-sensing electrode are inserted into sample water sample, and the ammonia in sample water sample penetrates the quick electricity of ammonia Extremely following air-sensitive film, into inside combination electrode, the pH value inside combination electrode increases, and the current potential of glass electrode increases.Electricity The ammonia density value of potential value and solution that pole measures meets Nernst equation, and potential value increases directly proportional to ammonia-nitrogen content.Therefore, Electrode method measures ammonia nitrogen, is to use the raised potential value of glass electrode current potential, the ammonia-nitrogen content in judgement sample water sample.Ammonia is quick The patent right and manufacturing technology of electrode rest in a small number of external producers.One slight ammonia gas-sensing electrode, nearly ten thousand yuan easily.Ammonia Quick electrode is not only expensive, but also enervated, intolerant to using.On-line measurement waste water not only bad environments, due to measurement object ash The useless impurities in water of black is numerous, the greyish black colored foreign in waste water be difficult with filtering removal, and be again it is uninterrupted long-term measure, Impurity can make ammonia gas-sensing electrode shorten the service life in waste water water sample.How to improve the ammonia gas-sensing electrode service life or improves measuring environment, at For research topic.Utility model people has studied ammonia gas-sensing electrode damage process in turn, and the impurity usually in environmental water sample blocks Ammonia enters channel --- and-air-sensitive film is being dismantled or is being cleaned in air-sensitive membrane process, and air-sensitive film damage-ammonia gas-sensing electrode damage is caused It is bad.The reason of impurity in water sample is ammonia gas-sensing electrode damage.A kind of two pumps five of suitable ammonia nitrogen on-line measurement of the utility model The double quatitative liquid supplying devices of valve are exactly the quatitative liquid supplying device that ammonia nitrogen is measured for ammonia gas-sensing electrode.

Utility model content

The technical solution of the utility model：A kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement, such as Shown in Fig. 1, including water sample injection pipe, cleaning solution storage bottle, cleaning solution injection pipe, auxiliary liquid storage bottle, auxiliary liquid injection pipe, suction Receive liquid storage bottle, absorbing liquid injection pipe, solenoid valve 1, solenoid valve 2, solenoid valve 3, solenoid valve 4, the inlet tube of peristaltic pump 1, wriggling Pump 1, the outlet tube of peristaltic pump 1, quantity tube, quantity tube upper end evacuated tube, solenoid valve 5, quantity tube lower end are into, drain pipe, quantitative Lightpipe optics is to penetrating metering device, 2 inlet tube of peristaltic pump, peristaltic pump 2,2 outlet tube of peristaltic pump, characterized in that quantity tube is cylinder Shape transparent tube body, quantity tube itself is vertically-mounted, and quantity tube upper end evacuated tube connects solenoid valve 5, the 5 outlet earth of solenoid valve Atmosphere；In quantity tube side, installation optics passes perpendicularly through quantity tube to penetrating metering device to penetrating light path；The installation Optics includes that upper and lower optics is mounted on to penetrating metering device on quantity tube to penetrating metering device, upper optics to penetrating metering device Portion, corresponding metered capacity are V1, and lower optics is to penetrating metering device, and mounted on quantity tube lower part, corresponding metered capacity is V2, V1 is more than V2；The quantity tube lower end is three-way pipeline structure into, drain pipe, and three-way pipeline is connected to quantity tube, threeway upwards Pipeline connects the outlet tube of peristaltic pump 1 to the left, and three-way pipeline connects to the right the inlet tube of peristaltic pump 2；Three-way pipeline to the left, is wriggled The outlet tube of pump 1 connects peristaltic pump 1, inlet tube connection solenoid valve 1, solenoid valve 2, solenoid valve 3 and the solenoid valve 4 of peristaltic pump 1, electricity Magnet valve 1 connects water sample injection pipe, and solenoid valve 2 connects cleaning solution injection pipe, and cleaning solution injection pipe is inserted into clear in cleaning solution storage bottle In washing lotion, the connection auxiliary liquid injection pipe of solenoid valve 3, auxiliary liquid injection pipe is inserted into auxiliary liquid storage bottle in auxiliary liquid, solenoid valve 4 Absorbing liquid injection pipe is connected, absorbing liquid injection pipe is inserted into absorbing liquid storage bottle in absorbing liquid；Three-way pipeline to the right, peristaltic pump 2 Inlet tube connects peristaltic pump 2, and peristaltic pump 2 connects 2 outlet tube of peristaltic pump, and 2 outlet tube of peristaltic pump connects ammonia gas-sensing electrode measuring cell Liquid injection pipe.

A kind of two double quatitative liquid supplying device course of work explanations of five valves of pump of suitable ammonia nitrogen on-line measurement of the utility model：Such as Shown in Fig. 1, when solenoid valve, wriggling air pump inoperative, solenoid valve or the sealing of wriggling pump delivery line；Solenoid valve, wriggling pump work When, corresponding conveyance conduit connection.Solenoid valve 5 is emptying solenoid valve, in gauge line feed liquor or when going out liquid, is opened, remaining time closes It closes.Feed liquor metering process：Open solenoid valve 5, quantity tube feed liquor from bottom to top；According to device working procedure, open solenoid valve 1, One of solenoid valve 2, solenoid valve 3, solenoid valve 4, peristaltic pump 1 work, suck corresponding liquid, inject quantity tube from bottom to top It is interior；In quantity tube, liquid level from bottom to top rises, and when light path of the liquid level to optics to penetrating metering device, blocks light path, prompts feed liquor Reach corresponding quantitative, peristaltic pump 1 is closed, and quantitative feed liquor process terminates；If peristaltic pump 1 starts, in setting time, optics It is unresponsive to penetrating, it prompts to lack liquid, closes peristaltic pump 1, device alarm.From bottom to top, start upper and lower optics to penetrating metering device, Quantity tube can measure the liquid of two kinds of volumes, when electrode method being suitble to measure ammonia nitrogen, watery liquid is more, auxiliary liquid is few spy Point；Feed flow process after quantitative：Solenoid valve 5 is opened, and peristaltic pump 2 works, and the liquid in quantity tube is sucked out, and the liquid quantitative mistake is defeated It is sent in the measuring cell of ammonia gas-sensing electrode；After lower optics is to penetrating metering device conducting, after setting time, gauge line row is prompted Sky closes peristaltic pump 2, closes solenoid valve 5, hermetic seal in quantity tube.

A kind of usefulness of the two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement of the utility model is that have 4 kinds of feed liquor selections, choice are big；Feed liquor metering peristaltic pump 1, goes out liquid feed flow peristaltic pump 2, and two peristaltic pumps work independently, It does not interfere with each other；There are two types of volume quantitatives to select for gauge line, and optics is quantitative accurate and reliable to penetrating metering device.

Description of the drawings

A kind of structure chart of the two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurements of Fig. 1.

In figure：1, solenoid valve 1,1.1, water sample injection pipe, 2, solenoid valve 2,2.1, cleaning solution injection pipe, 2.2, cleaning solution storage Deposit bottle, 3, solenoid valve 3,3.1, auxiliary liquid injection pipe, 3.2, auxiliary liquid storage bottle, 4, solenoid valve 4,4.1, absorbing liquid injection Pipe, 4.2, absorbing liquid storage bottle, 5, solenoid valve 5,5.1, evacuated tube, 6, peristaltic pump 1,6.1,1 inlet tube of peristaltic pump, 6.2, compacted 1 outlet tube of dynamic pump, 7, quantity tube, 8, quantitative lightpipe optics to penetrating metering device, 8.1, light-emitting tube 1,8.2, light receiving tube 1, 8.3, light-emitting tube 2,8.4, light receiving tube 2,8.5, quantity tube lower end into, drain pipe, 9, peristaltic pump 2,9.1, peristaltic pump 2 into Liquid pipe, 9.2,2 liquid injection pipe of peristaltic pump.

Specific implementation mode

2017 pairs of pond connection pumping ammonia electrode method on-line measurement waste water ammonia of XHX-AN that embodiment is produced with Shanxi company For nitrogen device.A kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement are double ponds connection pumping ammonia electrode methods The quantitative feed liquor part of on-line measurement ammonia nitrogen in waste water device is mounted on 2 company's wastewater treatment monitoring point of south wind group, illustrates such as Under：Component function explanation：Quantity tube is conducive to optical metrology using lower fluid injection, drain, upper evacuation structures.When wriggling pump work, Pipeline pump drainage liquid, when not working, the seal for pipe joints.When electromagnetic valve work, corresponding pipeline conducting；Solenoid valve 5 is opened, electricity is opened One of magnet valve 1, solenoid valve 2, solenoid valve 3, solenoid valve 4, peristaltic pump 1 work, and quantity tube injects liquid；Peristaltic pump 2 works When, liquid is discharged in quantity tube.When solenoid valve does not work, corresponding closedown of pipeline.Peristaltic pump：A kind of liquid conveying of controllable flow velocity Device.Commonly so that content is moved towards certain orientation by repeated compression elastic tube, flow velocity by pipe diameter and Compression speed determines.Peristaltic pump is for systems such as liquid chromatography and perfusions.The superiority of peristaltic pump：In the case of no liquid dry run Any part of pump will not be damaged；The vacuum degree up to 98% can be generated；There is no valve, mechanical seal and stuffing seal, Also the factor just revealed and safeguarded without these generations；Solid, liquid or gas-liquid mixed phase fluid can be easily conveyed, is allowed in fluid Contained solid diameter reaches tubular element internal diameter 0%；It can transport the various materials etc. with grinding, burn into oxygen sensitivity characteristic.It is small Type wriggling pump type is more, and function admirable is cheap, selects equity big.Practice finds that small peristaltic pump acid-fast alkali-proof, sealing are good Well, performance is flexible, cheap, solenoid valve can be replaced to use completely.

A kind of usefulness of the two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement of the utility model is that have 4 kinds of feed liquor selections：Ammonia electrode can be cleaned automatically, auxiliary liquid can be added, and promote ammonia electrode quickly to measure, suction can be added Receive liquid；Feed liquor metering peristaltic pump 1, goes out liquid feed flow peristaltic pump 2, and two peristaltic pumps work independently, do not interfere with each other；Gauge line has two Kind dosing liquid volume selection, optics are quantitative accurate and reliable to penetrating metering device.

Claims (1)

1. a kind of two double quatitative liquid supplying devices of five valves of pump of suitable ammonia nitrogen on-line measurement, including the storage of water sample injection pipe, cleaning solution Bottle, cleaning solution injection pipe, auxiliary liquid storage bottle, auxiliary liquid injection pipe, absorbing liquid storage bottle, absorbing liquid injection pipe, solenoid valve 1, Solenoid valve 2, solenoid valve 3, solenoid valve 4, the inlet tube of peristaltic pump 1, peristaltic pump 1, the outlet tube of peristaltic pump 1, quantity tube, quantity tube Upper end evacuated tube, solenoid valve 5, quantity tube lower end into, drain pipe, quantitative lightpipe optics to penetrate metering device, 2 inlet tube of peristaltic pump, Peristaltic pump 2,2 outlet tube of peristaltic pump, characterized in that quantity tube is cylindrical transparent tube body, and quantity tube itself is vertically-mounted, quantitative Pipe upper end evacuated tube connects solenoid valve 5,5 outlet earth atmosphere of solenoid valve；In quantity tube side, installation optics is to penetrating meter Device is measured, quantity tube is passed perpendicularly through to penetrating light path；The installation optics includes that upper and lower optics is counted to penetrating to penetrating metering device Device is measured, upper optics is mounted on quantity tube top, corresponding metered capacity is V1, and lower optics is to penetrating metering to penetrating metering device Device is mounted on quantity tube lower part, and corresponding metered capacity is V2, and V1 is more than V2；The quantity tube lower end is into, drain pipe Three-way pipeline structure, three-way pipeline are connected to quantity tube upwards, and three-way pipeline connects the outlet tube of peristaltic pump 1, three-way pipeline to the left The inlet tube of peristaltic pump 2 is connected to the right；To the left, the outlet tube of peristaltic pump 1 connects peristaltic pump 1, the feed liquor of peristaltic pump 1 to three-way pipeline Pipe connects solenoid valve 1, solenoid valve 2, solenoid valve 3 and solenoid valve 4, and solenoid valve 1 connects water sample injection pipe, the connection cleaning of solenoid valve 2 Liquid injection pipe, cleaning solution injection pipe are inserted into cleaning solution storage bottle cleaning liquid inside, the connection auxiliary liquid injection pipe of solenoid valve 3, auxiliary Liquid injection pipe is inserted into auxiliary liquid storage bottle in auxiliary liquid, and solenoid valve 4 connects absorbing liquid injection pipe, and absorbing liquid injection pipe, which is inserted into, to be inhaled It receives in liquid storage bottle in absorbing liquid；To the right, 2 inlet tube of peristaltic pump connects peristaltic pump 2 to three-way pipeline, and peristaltic pump 2 connects peristaltic pump 2 Outlet tube, 2 outlet tube of peristaltic pump connect ammonia gas-sensing electrode measuring cell liquid injection pipe.