CN209387623U - A kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device - Google Patents

Abstract

The utility model discloses a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection devices.The device is made of workbench and diving Laboratory Module, is connected between the two by pull-cord, water body, gas, information are transmitted by boundling cable；Boundling cable is made of gas transmission line I, gas transmission line II, waterline, data cable and boundling cable protective sleeve；Equipped with circuit assembly, battery, suction pump, ventilation row fan and solar panels on workbench；Diving Laboratory Module is made of shell, guide rail, kickboard, electric control valve I, electric control valve II, electric control valve III；Kickboard top and bottom are separately installed with temperature sensor II, oxygen level sensor II and oxygen level sensor I, temperature sensor I；Circuit assembly is made of single-chip microcontroller, reservoir, A/D conversion, wireless transport module.The utility model structure is simple, can be automatically performed set Sediments oxygen consumption rate detection, save labour, facilitate the lasting progress and observation of periodic test.

Description

A kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device

Technical field

The utility model belongs to the Sediments oxygen uptake rate measurement technical field such as rivers and lakes more particularly to river lake Moor Sediments oxygen consumption rate detection device.

Background technique

Sediment Oxygen Demand refers to the upper water column dissolved oxygen as caused by benthal deposit oxidation and biological respiration Wear rate generally indicates [mg/ (m with the dissolved oxygen content that unit area bed mud consumes within the unit time²*d)].In some rivers In stream, pollution sources of the bed mud as a stable state have significant impact to the consumption of Dissolved Oxygen in Water.

Two major classes are divided into the measurement of Sediment Oxygen Demand at present: laboratory method and on-site measurement method.Laboratory is surveyed The method of determining can be divided into continous way measuring method, box cultivation, manometric method and electrolytes determined method.Continous way measuring method is to utilize Inlet and outlet water makes internal system exchange dissolved oxygen with the external world, i.e. system is intake from one end, after certain residence time, from the other end Water outlet calculates oxygen consumption rate by measuring the oxygen content difference into flow point and flow point out.

Box cultivation requires container completely enclosed, and the surface area of synchronous deposits need to keep permanent with water volume is covered thereon It is fixed, make water circulation using devices such as motors in the process or generate certain disturbance, the probe of dissolved oxygen meter is placed in water sludge interface, often Data are read every certain time, by the variation of the oxygen content in certain time, to calculate oxygen consumption rate.

Manometric method is exactly the Sediments that constant weight is placed in measuring device, and injects in known volume and cover Water, device top need to reserve certain air, measure under temperature constant state.Manometric method is in the closed of constant temperature constant volume It is carried out in container, so that the total gas flow of system is generated variation since internal system is reacted, it is main by reproducibility object in deposit The respiration of the chemical oxidation of matter and microorganism and invertebrate consumes oxygen and generates carbon dioxide, and carbon dioxide utilizes Lye absorbs, and thus generates pressure change, can calculate oxygen consumption rate by the variation of pressure.

The principle of electrolytes determined method is to regard Sediments as an electrode, when overlying water is reduced so that in container When generating certain vacuum, then it will lead to electrolyte fluctuation and generate cell reaction, cell reaction generates oxygen again until pressure Dynamic balance, the electric current generated by Faraday's law measurement and the yield for calculating oxygen, then by can be calculated oxygen consumption rate, This measuring method needs higher accuracy of instrument.

It is difficult to avoid the disturbance to bed mud in acquisition bed mud and transportational process in laboratory method, be easy to cause bed mud Settling flux, meanwhile, sampling finishes the time for being sent to laboratory it is difficult to ensure that being no more than defined 6 hours, thus to entire reality The accuracy and reasonability tested cause a degree of influence.

Second of measuring method is on-site measurement method.Current on-site measurement method is all made of mode with high labor costs and examines Indoor water body oxygen content is tested in survey under water.But it is unable to satisfy and completes the measurement that bed mud consumes oxygen content in air by overlying water Test, and cause test to be difficult to repeat and reappear since water-power environment is complicated.

Summary of the invention

The purpose of this utility model designs Amounts of Mercury in Sediments deposit aiming at the above-mentioned problems of the prior art Oxygen consumption rate detection device realizes the consumption of METHOD FOR CONTINUOUS DETERMINATION bed mud at the scene by micromainframe to the automatic control of multiple sensors Oxygen rate, the utility model structure is simple, under ship auxiliary, dispensing is facilitated to recycle, and full-automatic detection is small to manpower dependence, The operation is stable, suitable for the test observation task of long-time, multicycle is unfolded.

The technical solution of the utility model is achieved in that a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection dress It sets, is constituted by swimming in the workbench 3 of the water surface and sinking underwater diving Laboratory Module 1, the workbench 3 is tested with diving It is connected between cabin 1 by pull-cord 9, water body, gas, information are transmitted by boundling cable 2；The boundling cable 2 is by appendix Line I 203, waterline 202, data cable 204, gas transmission line II 205 and the boundling cable protection for having package protective effect Set 201 is constituted；Equipped with circuit assembly 10, battery 5, suction pump 4, ventilation row fan 11 and solar energy on the workbench 3 Plate 6；The circuit assembly 10 is made of single-chip microcontroller 1003, reservoir 1002, A/D conversion 1004, wireless transport module 1001；Oxygen Content level sensor I 108, oxygen level sensor II 107, temperature sensor I 109, temperature sensor II 106, capacitor grid transducer 113 It 1004 is connected to single-chip microcontroller 1003 by A/D conversion, it is single-chip microcontroller 1003 and wireless transport module 1001, reservoir 1002, automatically controlled Valve I 102, electric control valve II 103, electric control valve III 114, suction pump 4,11 connection of ventilation row fan；The capacitor grid transducer 113 It is made of fixed grid sensor 110 and moving grid sensor 111；Workbench 3 is anchored by anchor 8 by hawser 7.Dive under water Laboratory Module 1 by Lower end has the shell 101 of cutting edge to be wrapped up, and has guide rail 104 inside the shell 101, and kickboard 105 is embedded in institute by pulley 112 It states in guide rail 104, so that kickboard 105 can be moved along guide rail 104；Pacify on 101 inner wall of shell between described two guide rails 104 Equipped with fixed grid sensor 110, moving grid sensor 111 is installed close to the side of 101 inner wall of shell in kickboard 105；Described floating Temperature sensor II 106 and oxygen level sensor II 107 has been mounted side by side in 105 upper surface of plate, pacifies side by side in 105 lower surface of kickboard Equipped with oxygen level sensor I 108 and temperature sensor I 109；It is equipped with and I 203 phase of gas transmission line in 101 inner wall upper end of shell Logical electric control valve I 102 is equipped with the electric control valve II 103 communicated with waterline 202 in the 101 inner wall middle-end of shell, It is equipped on 101 inner wall of shell between the electric control valve I 102 and electric control valve II 103 and is communicated with gas transmission line II 205 Electric control valve III 114.

The utility model structure is simple, is easily installed and safeguards, can be realized auto monitoring and measurement test, pole after launching measuring point The earth reduces the consumption of human resources.Local overlying water can be utilized on the basis of not disturbing bed mud original ecologic structure Field survey experiment is completed, it is more reasonable compared to the result obtained in laboratory simulation effective, it can be on precision and stability Meet the detection of Amounts of Mercury in Sediments deposit oxygen consumption rate.

Detailed description of the invention

Fig. 1 is a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate structure of the detecting device schematic diagram；

Fig. 2 is diving Laboratory Module structure sectional view；

Fig. 3 is boundling cable structure cross-sectional view；

Fig. 4 is kickboard structure sectional view；

Fig. 5 is circuit assembly structural schematic diagram.

Piece number illustrates in figure:

1, diving Laboratory Module；2, boundling cable；3, workbench；4, suction pump；5, battery；6, solar panels；7, cable Rope；8, anchor；9, pull-cord；10, circuit assembly；11, ventilation row fan；101, shell；102, electric control valve I；103, electrically-controlled valve Door II；104, guide rail；105, kickboard；106, temperature sensor II；107, oxygen level sensor II；108, oxygen level sensor I； 109, temperature sensor I；110, fixed grid sensor；111, moving grid sensor；112, pulley；113, capacitor grid transducer；114, electric Control valve III；1001, wireless transport module；1002, reservoir；1003, single-chip microcontroller；1004, A/D is converted；201, boundling cable Protective case；202, waterline；203, gas transmission line I；204, data cable；205, gas transmission line II.

Specific embodiment

The embodiments of the present invention are described in detail with reference to the accompanying drawing.A kind of Amounts of Mercury in Sediments deposit Oxygen consumption rate detection device is constituted, the work by swimming in the workbench 3 of the water surface and sinking underwater diving Laboratory Module 1 It is connected between platform 3 and diving Laboratory Module 1 by pull-cord 9, water body, gas, information are transmitted by boundling cable 2；The collection Bunch cable 2 is by gas transmission line I 203, waterline 202, data cable 204, gas transmission line II 205 and has package protective effect Boundling cable protective sleeve 201 constitute；Equipped with circuit assembly 10, battery 5, suction pump 4, ventilation on the workbench 3 Row's fan 11 and solar panels 6；The circuit assembly 10 is by single-chip microcontroller 1003, reservoir 1002, A/D conversion 1004, wireless transmission Module 1001 forms；Oxygen level sensor I 108, oxygen level sensor II 107, temperature sensor I 109, temperature sensor II 106, capacitor grid transducer 113 is connected to by A/D conversion 1004 with single-chip microcontroller 1003, single-chip microcontroller 1003 and wireless transport module 1001, reservoir 1002, electric control valve I 102, electric control valve II 103, electric control valve III 114, suction pump 4, ventilation row fan 11 connect It is logical；The capacitor grid transducer 113 is made of fixed grid sensor 110 and moving grid sensor 111；Workbench 3 passes through hawser by anchor 8 7 anchorings.Diving Laboratory Module 1 has the shell 101 of cutting edge to be wrapped up by lower end, has guide rail 104, kickboard inside the shell 101 105 are embedded in the guide rail 104 by pulley 112, so that kickboard 105 can be moved along guide rail 104；In described two guide rails 104 Between 101 inner wall of shell on fixed grid sensor 110 is installed, be equipped in kickboard 105 close to the side of 101 inner wall of shell dynamic Gate sensor 111；Temperature sensor II 106 and oxygen level sensor II 107 has been mounted side by side in 105 upper surface of kickboard, Oxygen level sensor I 108 and temperature sensor I 109 has been mounted side by side in 105 lower surface of kickboard；Pacify in 101 inner wall upper end of shell Equipped with the electric control valve I 102 communicated with gas transmission line I 203, it is equipped with and waterline 202 in the 101 inner wall middle-end of shell The electric control valve II 103 communicated is installed on 101 inner wall of shell between the electric control valve I 102 and electric control valve II 103 There is the electric control valve III 114 communicated with gas transmission line II 205.

In operation in use, equipment is placed in specified waters by ship, by the self weight for Laboratory Module 1 of diving under water, leading Gradually sink under the guidance of pull-cord 9, until 101 lower end cutting edge of the shell incision underwater mud of diving Laboratory Module 1 is stablized, Workbench 3 is placed on the water surface, one end of pull-cord 9 is fixed on workbench 3, and is connected by hawser 7 of jettisoninging The anchor 8 that connects consolidates workbench 3.Solar panels 6 convert the solar into electric energy as the charging of battery 5, and battery 5 is entire Equipment power supply.When being switched on for the first time, single-chip microcontroller 1003 opens electric control valve I 102 and electric control valve II 103, drives 4 work of suction pump Make, the water body in Laboratory Module 1 that will dive under water is by electric control valve II 103, the discharge diving Laboratory Module 1 of waterline 202, at this point, latent Pressure reduces in water Laboratory Module 1, the air outside the water surface under atmospheric pressure effect by gas transmission line I 203, electric control valve I 102 into Enter to dive under water in Laboratory Module 1, with diving Laboratory Module 1 in water level constantly decline, kickboard 105 under the guidance of pulley 112 along Guide rail 104 changes with SEA LEVEL VARIATION；After reaching preset water level, single-chip microcontroller 1003 controls suction pump 4 and stops working, and closes simultaneously Close electric control valve I 102 and electric control valve II 103, at this point, diving Laboratory Module 1 in formed be made of bed mud, water body and air it is close Space is closed, single-chip microcontroller 1003 is passed by 1004 control oxygen level sensor I 108 of A/D conversion, oxygen level sensor II 107, temperature Sensor I 109, temperature sensor II 106, capacitor grid transducer 113 work, respectively record diving Laboratory Module 1 in water body oxygen content, Oxygen content, the temperature of water body, the temperature of air and the water level of air, and the data are passed back single-chip microcontroller by data cable 204 1003, and be stored in reservoir 1002；Hereafter, whenever reaching the preset measurement period, single-chip microcontroller 1003 will be turned by A/D Change 1004 control oxygen level sensors I 108, oxygen level sensor II 107, temperature sensor I 109, temperature sensor II 106, Capacitor grid transducer 113 works, and records the data at the moment respectively and is stored in reservoir 1002 or passes through wireless transport module Data are uploaded to terminal by 1001.If the gas oxygen content of measurement is lower than preset threshold, single-chip microcontroller 1003 opens electrically-controlled valve Door I 103 and electric control valve III 114, and open ventilation row fan 11, by gas transmission line II 205 by the gas in Laboratory Module 1 of diving under water To outlet, by gas pressure, the relatively high air of extraneous oxygen content enters diving Laboratory Module 1 by gas transmission line I 203, in Single-chip microcontroller 1003 by the 1004 oxygen-containing quantity sensor of control II 107 of A/D conversion constantly measures the oxygen content in gas simultaneously for this, when After reaching initial threshold, single-chip microcontroller 1003 closes ventilation row fan 11, electric control valve I 102 and electric control valve III 114, continues as a result, Start timed periodic detection.

Claims (5)

1. a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device, it is characterised in that: a kind of Amounts of Mercury in Sediments deposition Material consumption oxygen rate-measuring device is constituted by swimming in the workbench (3) of the water surface and sinking underwater diving Laboratory Module (1), described It is connect between workbench (3) and diving Laboratory Module (1) by pull-cord (9), water body, gas, information pass through boundling cable (2) Transmitting.

2. a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device according to claim 1, it is characterised in that: work Make on platform (3) equipped with circuit assembly (10), battery (5), suction pump (4), ventilation row's fan (11) and solar panels (6)； The workbench (3) is anchored by anchor (8) by hawser (7).

3. a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device according to claim 1, it is characterised in that: latent Water Laboratory Module (1) has the shell (101) of cutting edge to be wrapped up by lower end, has guide rail (104), kickboard inside the shell (101) (105) through pulley (112) in the guide rail (104), so that kickboard (105) can be mobile along guide rail (104)；Described two Fixed grid sensor (110) are installed on shell (101) inner wall between a guide rail (104), in kickboard (105) close to shell (101) side of inner wall is equipped with moving grid sensor (111)；Temperature sensing has been mounted side by side in the kickboard (105) upper surface Oxygen level sensor I (108) has been mounted side by side in kickboard (105) lower surface in device II (106) and oxygen level sensor II (107) With temperature sensor I (109)；The electric control valve I communicated with gas transmission line I (203) is installed in shell (101) inner wall upper end (102), in the shell (101), inner wall middle-end is equipped with the electric control valve II (103) communicated with waterline (202), in institute It states and is equipped with and gas transmission line II (205) on shell (101) inner wall between electric control valve I (102) and electric control valve II (103) The electric control valve III (114) communicated.

4. a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device according to claim 1, it is characterised in that: collection Bunch cable (2) is by gas transmission line I (203), waterline (202), data cable (204), gas transmission line II (205) and has packet The boundling cable protective sleeve (201) for wrapping up in protective effect is constituted；The waterline (202) is connected to suction pump (4), the gas transmission Pipeline I (203) is communicated with atmosphere, the gas transmission line II (205) is arranged fan (11) with ventilation and is connected to.

5. a kind of Amounts of Mercury in Sediments deposit oxygen consumption rate detection device according to claim 1, it is characterised in that: electricity Road assembly (10) is made of single-chip microcontroller (1003), reservoir (1002), A/D conversion (1004), wireless transport module (1001)；Oxygen Content level sensor I (108), oxygen level sensor II (107), temperature sensor I (109), temperature sensor II (106), capacitive grating Sensor (113) is connected to by A/D conversion (1004) with single-chip microcontroller (1003), single-chip microcontroller (1003) and wireless transport module (1001), reservoir (1002), electric control valve I (102), electric control valve II (103), electric control valve III (114), suction pump (4), Ventilation row's fan (11) connection；The capacitor grid transducer (113) is made of fixed grid sensor (110) and moving grid sensor (111).