CN106568809A

CN106568809A - PH combined electrode unit with automatic cleaning and maintenance functions

Info

Publication number: CN106568809A
Application number: CN201611004017.XA
Authority: CN
Inventors: 邹强; 苏奇; 赵彤
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2016-11-11
Filing date: 2016-11-11
Publication date: 2017-04-19

Abstract

The invention relates to a PH combined electrode unit with automatic cleaning and maintenance functions. The PH combined electrode unit comprises a power supply module, a central control module, a PH value acquisition module, an electrode maintenance module and a clear water acquisition module, wherein the PH value acquisition module comprises a mechanical arm 1, a PH combined electrode 3 fixedly arranged on the front end of the mechanical arm 1, a to-be-measured-solution tank 12, a sample introduction water pump 11, a sample discharging water pump 10, a flushing water pump 19; the electrode maintenance module comprises a KCl replenisher container 21, a turbidity sensor 7, a KCl solution tank 8 and a sewage discharging pump 9; the turbidity sensor 7 is used for detecting the contamination degree of a standard sample solution in the KCl solution tank 8; and when turbidity reaches a threshold, the central control module controls the sewage draining pump 9 to work so as to discharge waste liquid in the KCl solution tank 8, and then a KCl replenisher is added. The PH combined electrode unit can meet demands for long-term monitoring of sensor nodes in a marine environment.

Description

A kind of PH combination electrode devices for possessing cleaning automatically and maintenance function

Technical field

The invention is related to pH value of seawater monitoring field, more particularly to the cleaning of PH combination electrodes in device and maintenance.

Background technology

The resource contained in ocean is much larger than land, living species resource, mineral resources, petroleum resources, nuclear resource.Can To say, Ocean Development Technology decides the future economy trend and situation of a country.The change of marine environment can be provided to ocean The exploitation in source causes important impact, and the monitoring to seawater quality can cause change of the mankind to marine environment to be predicted, from And reduce the risk of exploitation marine resources.

It is one of most important index in seawater quality monitoring process that pH value is, meanwhile, seawater quality monitoring is one long Phase continuous process, if the immersion of existing PH combination electrodes long-time is in the seawater, electrode front glass ball steeps surface easily quilt Impurity in sea water is covered, and blocks hydrion passage so that PH combination electrode sensitivity decreases, and impact is adopted to pH value of seawater data The accuracy of collection.

Existing PH combination electrodes are both needed to be cleaned and be soaked in the medium operation of standard K CL solution using after, but In sensor node under marine environment, it is clear that above-mentioned steps cannot be completed, sensor device is frequently changed, to seawater quality Long term monitoring produces inconvenience, also consumes substantial amounts of manpower and materials.Therefore, a kind of PH for possessing cleaning and maintenance function automatically is answered Composite electrode device is just particularly important.

The content of the invention

It is an object of the invention to provide a kind of PH combination electrode devices for possessing cleaning automatically and maintenance function, to meet sea The needs of foreign environment sensor node long term monitoring；Technical scheme is as follows：

A kind of PH combination electrode devices for possessing cleaning automatically and maintenance function, including supply module, central control module, PH value acquisition module, electrode maintenance module and clear water acquisition module, wherein,

PH value acquisition module include mechanical arm 1, be fixed on the front end of mechanical arm 1 PH combination electrodes 3, solution pool to be measured 12, Sample introduction water pump 11, stock layout water pump 10, flush water pump 19, wherein, sample introduction water pump 11 is used to for sea water to be pumped into solution pool to be measured 12, Stock layout water pump 10 is used to for sea water to discharge testing liquid pond 12；Mechanical arm 1 is used to for PH combination electrodes 3 to be placed in testing liquid pond 12 Interior or raised, PH combination electrodes 3 measure pH value and transmit to central control module 5, and flush water pump is used to aspirating clear water and right The PH combination electrodes 3 raised are cleaned, and the PH combination electrodes 3 through cleaning are moved to the KCL solution pools 8 that electrode maintains module In；

Electrode maintains module, and including the KCL with electromagnetic valve liquid container 21, turbidity transducer 7, KCL solution pools are supplemented 8th, dredge pump 9, turbidity transducer 7 is used to detect the contaminated degree of standard sample liquid in KCL solution pools 8, the information of its collection Central Control Module is admitted to, when turbidity reaches threshold value, control of sewage disposal water pump 9 works Central Control Module, discharges KCL solution Waste liquid in pond 8, the KCL positioned at the top of KCL solution pools 8 supplements the electromagnetic valve of the bottom of liquid container 21 and opens, and release KCL is supplemented Liquid.

Preferably, clear water acquisition module includes heat conductive silica gel 16, stores sea water pond 17, stores clear water reserviors 18, liquidometer 13, water inlet Pump 14, regulation water pump 15 and cold plate 20, intake pump 14 is used for pumping seawater and enters storage sea water pond 17；The main body of heat conductive silica gel 16 As the side wall for storing sea water pond 17, with its maritime interior waters directly contact；Heat conductive silica gel 16 is used to absorb heat；Store the upper of sea water pond 17 Portion is oblique to be fixed with cold plate 20, and the sea water of evaporation is condensed into liquid by cold plate 20, and the liquid drain of condensation is entered to store clear In pond 18；Liquidometer 13 is used for monitoring and stores the water yield in clear water reserviors 18, and the information of its collection is admitted to Central Control Module, center Control module adjusts water pump 15 and opens after clear water amount reaches max-thresholds, discharges sea water, is no longer evaporated condensation,；When clear Water reaches minimum threshold, and control intake pump 14 works.

Description of the drawings

Fig. 1 is the profile of sensor device casing

Fig. 2 is the detail view that PH combination electrodes are cleaned and maintained

Fig. 3 is the theory diagram of the device

Fig. 4 is the flow chart of overall process

1st, mechanical arm；2nd, solar energy photovoltaic panel；3rd, PH combination electrodes；4th, accumulator；5th, central control module；6th, foam； 7th, turbidity transducer；8th, KCL standard samples liquid pool；9th, 10,11,14,15,19, it is water pump (being not drawn into water pipe)；12nd, prepare liquid Body pond 13, liquidometer；16th, heat conductive silica gel；17th, sea water pond is stored；18th, clear water reserviors are stored；20th, cold plate made by metal；21st, carry The KCL of electromagnetic valve supplements liquid container；

Specific embodiment

Fig. 1 is the structural representation of PH combination electrode devices, and the cleaning automatically that possesses of the present invention is answered with the PH of maintenance function Composite electrode device, including supply module, central control module, pH value acquisition module, electrode maintenance module and clear water acquisition module. The specific embodiment of the present invention is further described below in conjunction with accompanying drawing.

As shown in figure 1, pH value acquisition module includes mechanical arm 1, PH combination electrodes 3, solution pool to be measured 12, water pump 10, water Pump 11, water pump 19.PH combination electrodes 3 are controlled to enter testing liquid pond 12 by mechanical arm 1, and water pump 11 works, and sea water enters to be measured Liquid cell 12, measures pH value and transmits to central control module 5.Water pump 10 works, and discharges sea water.Mechanical arm 1 is by PH combination electrodes Raise, water pump 19 works, draw clear water and rinse combination electrode.Mechanical arm 1 again moves to PH combination electrodes 3 in KCL solution pools 8.

It is electrode maintenance module details figure such as Fig. 2, including the KCL with electromagnetic valve liquid container 21, turbidity sensing is supplemented Device 7, KCL solution pools 8, water pump 9.Contain the impurity such as microorganism, algae, industrial wastes in sea water, turbidity transducer 7 can detect mark The contaminated degree of quasi- sample liquid.When turbidity reaches threshold value, KCL titers are contaminated, must change.Water pump 9 works, and discharges waste liquid. KCL supplements the electromagnetic valve of the bottom of liquid container 21 and opens, and discharges KCL replenishers.Realize the renewal of KCL titers.

Such as Fig. 1, right side clear water acquisition module include heat conductive silica gel 16, store sea water pond 17, store clear water reserviors 18, liquidometer 13, Water pump 14, water pump 15 and cold plate 20.Water pump 14 works, and sea water is entered and stores sea water pond 17.Heat conductive silica gel 16 connects solar energy Volt plate 2 absorbs heat, and evaporation of seawater is met cold plate 20 and is condensed into liquid, because cold plate 20 and photovoltaic panel 2 are inclined with angle, With drainage, the clear water of condensation is flowed into and stored in clear water reserviors 18.Liquidometer 13 monitors the water yield, and clear water amount reaches max-thresholds Afterwards, water pump 15 is opened, and discharges sea water, is no longer evaporated condensation, it is ensured that sea water will not be in casing intercrystalline and pollution.Work as clear water Minimum threshold is reached, water pump 14 works, repeat said process.

Such as Fig. 1, supply module includes solar energy photovoltaic panel 2 and accumulator 4.Solar energy photovoltaic panel 2 absorbs luminous energy and is converted into Electrical power storage is system power supply in accumulator 4, to ensure endlessly energy supply.It is powered using solar energy, Ji Nengbao Retaining ring border, economize on resources and greatly extend the device seafaring time.

As shown in figure 3, the device is operated by central control module control machinery arm, collected using PH combination electrodes and believed Breath, information is processed by central control module, and is stored in data memory module；Using turbidity transducer and liquid level Collection data are collected, central control module analysis KCL standard sample liquid dustiness is uploaded to and whether clear water amount is reached threshold value, and controlled Water pump and electromagnetic valve are made a response in time, complete the automatic data collection of clear water and the automatic replacing of KCL solution, realize that PH is combined The automatic cleaning of electrode assembly and maintenance.

Claims

1. a kind of PH combination electrode devices for possessing cleaning automatically and maintenance function, including supply module, central control module, PH Value acquisition module, electrode maintenance module and clear water acquisition module, wherein,

PH value acquisition module includes mechanical arm (1), is fixed on PH combination electrodes (3), the solution pool to be measured of mechanical arm (1) front end (12), sample introduction water pump (11), stock layout water pump (10), flush water pump (19), wherein, sample introduction water pump (11) is for sea water to be pumped into Solution pool (12) to be measured, stock layout water pump (10) for by sea water discharge testing liquid pond (12)；Mechanical arm (1) is for PH to be combined Electrode (3) is placed in testing liquid pond (12) or is raised, and PH combination electrodes (3) measure pH value and transmit to central control module (5), flush water pump is used to aspirate clear water and the PH combination electrodes (3) to raising are cleaned, through the PH combination electrodes for cleaning (3) in being moved to the KCL solution pools (8) of electrode maintenance module；

Electrode maintains module, and including the KCL with electromagnetic valve liquid container (21), turbidity transducer (7), KCL solution pools are supplemented (8), dredge pump (9), for detecting the contaminated degree of standard sample liquid in KCL solution pools (8), it is adopted turbidity transducer (7) The information of collection is admitted to Central Control Module, and when turbidity reaches threshold value, control of sewage disposal water pump (9) works Central Control Module, The interior waste liquid of KCL solution pools (8) is discharged, the KCL above KCL solution pools (8) supplements the electromagnetic valve of liquid container (21) bottom Open, discharge KCL replenishers.

2. it is according to claim 1 to possess the PH combination electrode devices cleaned automatically with maintenance function, it is characterised in that clear Water acquisition module includes heat conductive silica gel (16), stores sea water pond (17), stores clear water reserviors (18), liquidometer (13), intake pump (14), tune Water saving pump (15) and cold plate (20), intake pump (14) is entered for pumping seawater and stores sea water pond (17)；Heat conductive silica gel (16) Main body as store sea water pond (17) side wall, with its maritime interior waters directly contact；Heat conductive silica gel (16) is for absorbing heat；Store sea water The top in pond (17) is oblique to be fixed with cold plate (20), the sea water of evaporation is condensed into liquid by cold plate (20), and will condense Liquid drain enters to store in clear water reserviors (18)；Liquidometer (13) stores the interior water yield of clear water reserviors (18), the information quilt of its collection for monitoring Central Control Module is sent into, Central Control Module adjusts water pump (15) and open after clear water amount reaches max-thresholds, release sea Water, is no longer evaporated condensation,；When clear water reaches minimum threshold, control intake pump (14) work.