High-accuracy water quality ORP permanganate index detection electrode method measuring chamber

Abstract

The utility model relates to the technical field of permanganate detection, in particular to a high-accuracy water quality ORP (Oxidation Reduction Potential) permanganate index detection electrode method measuring chamber which comprises a detection module for measuring and outputting a numerical simulation signal, and a digestion container for accommodating sample liquid and a reagent for reaction, the heating module is used for heating the digestion container to generate steam, the condensation reflux device is used for digesting the heated steam to form liquid drops to fall back, and the stirring mechanism is used for fully stirring sample liquid and reagents. The device is simple in structure and reasonable in design, can realize a series of work such as automatic input reaction of sample liquid and reagents, heating of the sample liquid, digestion of steam, automatic stirring of the sample liquid and the reagents, automatic detection of permanganate indexes and the like, and is high in automation degree, high in detection efficiency, good in detection effect, high in integration and low in cost. Meanwhile, bottom liquid feeding is adopted, so that accumulation of water sample bubbles can be effectively avoided, dead volume can be reduced, and detection precision can be further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to permanganate detection technical field, concretely relates to a kind of high-accuracy water quality ORP permanganate index detection electrode method measuring chamber. BACKGROUND

[0002] It refers to the amount consumed when water sample is treated with potassium permanganate as oxidizing agent in acidic or alkaline medium, expressed in mg / L of oxygen. Generally, permanganate index is suitable for the determination of surface water, drinking water and domestic sewage. Nitrite, ferrous salt, permanganate index and other reducing inorganic substances in water and organic matter that can be oxidized under this condition can all consume potassium permanganate. Therefore, the index is often used as a comprehensive indicator of the degree of pollution of surface water by organic matter and reducing inorganic substances. As one of the main pollution indicators, permanganate index can comprehensively reflect the degree of pollution of reducing substances in water body. In water quality monitoring projects, permanganate index is a water quality indicator that must be monitored. With the popularization of water quality monitoring automation and comprehensiveness, it is necessary to transfer the permanganate index monitoring and analysis site from the experiment table to the water quality monitoring site, realizing the conversion of permanganate index determination from "static" analysis to "dynamic" analysis, eliminating the lag phenomenon of water quality analysis data in static analysis. However, most of the existing online instrument products have the problems of large amount of detection reagent, high waste liquid volume, low integration, insufficient detection stability, inconvenient maintenance of detection components, etc., resulting in large measurement data error and low monitoring efficiency. SUMMARY

[0003] The utility model wants to solve the technical problem that the existing online instrument product has the problems of large amount of detection reagent, high waste liquid volume, low integration, insufficient detection stability, inconvenient maintenance of detection components, etc., resulting in large measurement data error and low monitoring efficiency.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a kind of high-accuracy water quality ORP permanganate index detection electrode method measuring chamber, including the detection module for measuring and outputting numerical simulation signal, the digestion container for accommodating sample liquid and reagent to carry out reaction, the heating module for heating digestion container to generate steam, the condensation reflux device for the steam formed by digestion heating to form droplet backfall, and the stirring mechanism for fully stirring sample liquid and reagent, the top of the digestion container is equipped with the reagent inlet for reagent, the bottom of the digestion container is equipped with the sample liquid inlet for sample liquid, the condensation reflux device is communicated with digestion container, the heating part of the heating module is connected with digestion container, the stirring part of the stirring mechanism is arranged in the inside of digestion container, and the detection end of the detection module is arranged in the inside of digestion container.

[0005] The utility model discloses a work, can realize the automatic input reaction of sample liquid and reagent, the heating of sample liquid, the digestion of steam, the automatic stirring of sample liquid and reagent and a series of work such as the automatic detection of permanganate index, and the automation degree is high, and the detection efficiency is high, and the detection effect is good, and the integration is high, reduces the reagent amount and waste liquid amount required, and the maintenance is convenient, and the bottom liquid inlet can effectively avoid the accumulation of water sample bubbles and reduce the dead volume, can further improve the detection precision.

[0006] As preferred, the stirring mechanism comprises a stirring drive device, a magnetic stirring base and a magnetic stirring sub, the magnetic stirring sub is arranged inside the digestion container, the output part of the stirring drive device is in transmission connection with the magnetic stirring sub through the magnetic stirring base, and the magnetic stirring sub is used to perform stirring work when the drive device drives the magnetic stirring base to act.

[0007] The utility model discloses a work, complete sample liquid and reagent's stirring work through magnetic stirring sub, can improve reaction efficiency, can improve detection precision through sufficient reaction, and simultaneously realize transmission connection through magnetic force, can avoid the pollution of sample liquid and reagent while lower processing difficulty, and the production cost is lower.

[0008] As preferred, the stirring drive device is set as a hollow shaft motor, the stirring drive device is coaxially arranged with the sample liquid inlet of the digestion container, the magnetic stirring base is provided with a through hole for the sample liquid inlet of the digestion container to expose to the outside, and the sample liquid inlet of the digestion container exposes to the outside through the through hole of the magnetic stirring base and the hollow part of the stirring drive device.

[0009] As preferred, the digestion container is provided with a plurality of limiting bosses, the heating module is provided with a heating wire (31) and a temperature sensor, the heating wire is uniformly wound on the digestion container and abuts against the limiting boss, and the detection part of the temperature sensor is arranged inside the digestion container.

[0010] As preferred, it further includes a first locking device, and the reagent inlet of the digestion container is in communication with the corresponding reagent supply device through the first locking device.

[0011] As preferred, it further includes a measurement chamber main frame, and the detection module, the condensation reflux device and the stirring mechanism are all installed on the measurement chamber main frame, and the digestion container is arranged inside the measurement chamber main frame.

[0012] As preferred, the first sealing ring and the second sealing ring are further included, the top of the measuring chamber main frame is provided with a measuring chamber top cover, the bottom surface of the measuring chamber top cover is concavely provided with a groove for accommodating the first sealing ring, and the top opening of the digestion container is in close contact with the measuring chamber top cover for sealing through the first sealing ring, and the bottom of the digestion container is in close contact with the inner bottom surface of the measuring chamber main frame through the second sealing ring.

[0013] As preferred, the second locking device is further included, the second locking device is installed at the bottom of the measuring chamber main frame, and the locking part of the second locking device is connected with the corresponding sample liquid supply pipeline.

[0014] As preferred, the third locking device is further included, the condensation reflux device is vertically arranged and fixedly installed at the top of the measuring chamber main frame through the third locking device.

[0015] As preferred, the detection module is arranged as an ORP electrode.

[0016] The beneficial technical effects of the utility model include:

[0017] 1. The utility model discloses a simple structure, reasonable design can realize sample liquid and reagent's automatic input reaction, sample liquid's heating, vapor's digestion, sample liquid and reagent's automatic stirring and a series of work such as permanganate index's automatic detection, and the automation degree is high, and the detection efficiency is high, and the detection effect is good, and the integration is high, reduces the reagent amount and waste liquid amount required, and convenient maintenance, and the bottom liquid inlet can effectively avoid the accumulation of water sample bubbles and reduce the dead volume, and can further improve the detection precision.

[0018] 2. The utility model discloses a magnetic stirring sub-completes sample liquid and reagent's stirring work, can improve reaction efficiency, can improve detection precision through sufficient reaction, and simultaneously realizes transmission connection through magnetic force, can avoid the pollution of sample liquid and reagent at the same time lower processing difficulty, and the production cost is lower.

[0019] Other features and advantages of the utility model will be disclosed in the following specific embodiment, drawing in detail. DRAWINGS

[0020] The utility model will be further explained in connection with the drawings:

[0021] Figure 1 It is a kind of high-accuracy water quality ORP permanganate index detection electrode method measuring chamber's partial sectional view;

[0022] Figure 2 It is a kind of high-accuracy water quality ORP permanganate index detection electrode method measuring chamber's exploded view. SPECIFIC EMBODIMENT

[0023] The technical solutions of the embodiments of the utility model will be explained and described below in combination with the drawings of the embodiments of the utility model. However, the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] In the following description, the appearance of terms such as 'in', 'out', 'up', 'down', 'left', 'right' and the like indicate the orientation or positional relationship only for the convenience of describing the embodiments and simplifying the description, and are not indicative or suggestive of the devices or elements indicated must have a particular orientation, constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.

[0025] Please refer to Figure 1 The embodiment discloses a kind of high-accuracy water quality ORP permanganate index detection electrode method measuring chamber, including the detection module 1 for calculating and outputting numerical simulation signal, for accommodating sample liquid and reagent to carry out reaction digestion vessel 2, for heating digestion vessel 2 to produce steam heating module 3, for the condensation reflux device 4 of steam formation droplet backfall of digestion heating, and for fully stirring sample liquid and reagent stirring mechanism 5, detailed description is as follows in combination with the drawings.

[0026] Please refer to Figure 1 And Figure 2 In the embodiment, the top of digestion vessel 2 is provided with reagent inlet 21 for reagent, the bottom of digestion vessel 2 is provided with sample liquid inlet 22 for sample liquid, condensation reflux device 4 is communicated with digestion vessel 2, heating part of heating module 3 is connected with digestion vessel 2, stirring part of stirring mechanism 5 is arranged in the inside of digestion vessel 2, and detection end of detection module 1 is arranged in the inside of digestion vessel 2, in the embodiment, detection module 1 is set as ORP electrode, when working, numerical simulation signal is calculated and outputted by ORP electrode, and detection is completed.

[0027] When working, the embodiment can realize a series of work such as automatic input reaction of sample liquid and reagent, heating of sample liquid, digestion of steam, automatic stirring of sample liquid and reagent and automatic detection of permanganate index, with high degree of automation, high detection efficiency, good detection effect, high integration, reduced amount of reagent and waste liquid, convenient maintenance, and the use of bottom liquid inlet can effectively avoid the accumulation of water sample bubbles and reduce dead volume, to further improve detection precision.

[0028] Preferably, the stirring mechanism 5 comprises a stirring driving device 51, a magnetic stirring base 52 and a magnetic stirring sub 53, the magnetic stirring sub 53 is arranged in the interior of the digestion container 2, the output part of the stirring driving device 51 is in transmission connection with the magnetic stirring sub 53 through the magnetic stirring base 52, and the magnetic stirring sub 53 is used to perform stirring work when the driving device 51 drives the magnetic stirring base 52 to act.

[0029] During the operation of the present example, the stirring work of the sample liquid and the reagent is completed by the magnetic stirring sub 53, the reaction efficiency can be improved, the detection accuracy can be improved through sufficient reaction, the transmission connection is realized through the magnetic force, the sample liquid and the reagent can be prevented from being polluted, the processing difficulty is low, and the production cost is low.

[0030] As a further improvement of the present embodiment, the stirring driving device 51 is a hollow shaft motor, the stirring driving device 51 is coaxially arranged with the sample liquid inlet 22 of the digestion container 2, the magnetic stirring base 52 is provided with a through hole for the sample liquid inlet 22 of the digestion container 2 to expose to the outside, and the sample liquid inlet 22 of the digestion container 2 exposes to the outside through the through hole of the magnetic stirring base 52 and the hollow part of the stirring driving device 51. During the operation, the hollow shaft motor can realize the coaxial liquid discharge, reduce the sample dead volume, realize the more thorough emptying, avoid the influence on the next measurement, and further improve the detection accuracy while ensuring the electromagnetic stirring performance.

[0031] In the present embodiment, the digestion container 2 is provided with a plurality of limiting bosses 23, the heating module 3 is provided with a heating wire 31 and a temperature sensor 32, the heating wire 31 is uniformly wound on the digestion container 2 and abuts against the limiting boss 23, and the detection part of the temperature sensor 32 is arranged in the interior of the digestion container 2.

[0032] Preferably, the measuring chamber main frame 9 is further provided, the detection module 1, the condensation reflux device 4 and the stirring mechanism 5 are all installed on the measuring chamber main frame 9, the digestion container 2 is arranged in the interior of the measuring chamber main frame 9, and in the specific implementation, the first sealing ring 91 and the second sealing ring 92 are further included, the top of the measuring chamber main frame 9 is provided with a measuring chamber top cover 93, the bottom surface of the measuring chamber top cover 93 is concavely provided with a groove for accommodating the first sealing ring 91, the top opening of the digestion container 2 is in close contact with the measuring chamber top cover 93 through the first sealing ring 91 for sealing, and the bottom of the digestion container 2 is in close contact with the interior bottom surface of the measuring chamber main frame 9 through the second sealing ring 92. The modular design can reduce the cost of later maintenance and improve the maintenance efficiency.

[0033] As a further improvement of the embodiment, the first locking device 6, the second locking device 7 and the third locking device 8 are further included, the reagent inlet 21 of the digestion container 2 is communicated with the corresponding reagent supply device through the first locking device 6, the second locking device 7 is installed at the bottom of the measuring chamber main frame 9, the locking part of the second locking device 7 is connected with the corresponding sample liquid supply pipeline, the condensation reflux device 4 is vertically arranged and fixedly installed at the top of the measuring chamber main frame 9 through the third locking device 8, the stability of installation and connection can be improved, the service life is prolonged, preferably, the reflux part of the condensation reflux device 4 can be arranged close to the digestion container 2, the reflux can be sufficient, and the measurement accuracy is further improved.

[0034] In work, the sample liquid is supplied into the digestion container 2 by using the bottom liquid inlet mode of the sample liquid supply liquid conveying device such as a peristaltic pump, the digestion container 2 is heated by the heating module 3 and the heating temperature and the heating time are controlled, so that the sample liquid is evaporated into the condensation reflux device 4 to be condensed and form liquid reflux into the digestion container 2, at this time, the detection module 1 measures and outputs a numerical simulation signal, the reagent is supplied into the digestion container 2 by the corresponding reagent supply device to start reaction, and the magnetic stirring rod 53 is driven by the stirring driving device 51 to fully stir the sample liquid and the reagent until the degree end point potential is judged, the detection is completed, the detection result is output, and the waste liquid is discharged from the bottom of the digestion container 2.

[0035] The beneficial technical effects of the embodiment include that the structure of the utility model is simple, the design is reasonable, a series of work such as automatic input reaction of the sample liquid and the reagent, heating of the sample liquid, digestion of vapor, automatic stirring of the sample liquid and the reagent and automatic detection of permanganate index can be realized, the degree of automation is high, the detection efficiency is high, the detection effect is good, the integration is high, the required reagent amount and waste liquid amount are reduced, maintenance is convenient, the bottom liquid inlet mode can effectively avoid the accumulation of water sample bubbles and reduce the dead volume, and the detection precision can be further improved.

[0036] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, and those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific embodiment. Any modification not deviating from the function and structural principle of the utility model will be included in the scope of claims.

Claims

1. A high-accuracy water-quality ORP permanganate index detection electrode method measuring chamber, characterized in that: The device comprises a detection module (1) for calculating and outputting a numerical simulation signal, a digestion container (2) for containing a sample liquid and a reagent for reaction, a heating module (3) for heating the digestion container (2) to generate steam, a condensation reflux device (4) for digestion heated steam to form droplets to fall back, and a stirring mechanism (5) for fully stirring the sample liquid and the reagent, the top of the digestion container (2) is provided with a reagent inlet (21) for the reagent, the bottom of the digestion container (2) is provided with a sample liquid inlet (22) for the sample liquid, the condensation reflux device (4) is communicated with the digestion container (2), the heating part of the heating module (3) is connected with the digestion container (2), the stirring part of the stirring mechanism (5) is arranged in the inside of the digestion container (2), and the detection end of the detection module (1) is arranged in the inside of the digestion container (2).

2. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 1, characterized in that: The stirring mechanism (5) comprises a stirring driving device (51), a magnetic stirring seat (52) and a magnetic stirring sub (53), the magnetic stirring sub (53) is arranged in the inside of the digestion container (2), the output part of the stirring driving device (51) is drivingly connected with the magnetic stirring sub (53) through the magnetic stirring seat (52), and the magnetic stirring sub (53) is used for performing stirring work when the driving device (51) drives the magnetic stirring seat (52) to act.

3. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 2, characterized in that: The stirring driving device (51) is arranged coaxially with the sample liquid inlet (22) of the digestion container (2), the magnetic stirring seat (52) is provided with a through hole for the sample liquid inlet (22) of the digestion container (2) to expose to the outside, and the sample liquid inlet (22) of the digestion container (2) exposes to the outside through the through hole of the magnetic stirring seat (52) and the hollow part of the stirring driving device (51).

4. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 1, characterized in that: The digestion container (2) is provided with a plurality of limiting bosses (23), the heating module (3) is provided with a heating wire (31) and a temperature sensor (32), the heating wire (31) is uniformly wound on the digestion container (2) and abuts against the limiting boss (23), and the detection part of the temperature sensor (32) is arranged in the inside of the digestion container (2).

5. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 1, characterized in that: The device further comprises a first locking device (6), the reagent inlet (21) of the digestion container (2) is communicated with the corresponding reagent supply device through the first locking device (6).

6. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 1, characterized in that: The device further comprises a measurement chamber main frame (9), the detection module (1), the condensation reflux device (4) and the stirring mechanism (5) are all installed on the measurement chamber main frame (9), and the digestion container (2) is arranged in the inside of the measurement chamber main frame (9).

7. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 6, characterized in that: It also comprises a first sealing ring (91) and a second sealing ring (92), the top of the measuring chamber main frame (9) is provided with a measuring chamber top cover (93), the bottom surface of the measuring chamber top cover (93) is concavely provided with a groove for accommodating the first sealing ring (91), the top opening of the digestion container (2) is sealed by the close contact between the first sealing ring (91) and the measuring chamber top cover (93), and the bottom of the digestion container (2) is in close contact with the inner bottom surface of the measuring chamber main frame (9) through the second sealing ring (92).

8. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 6, characterized in that: It also comprises a second locking device (7), which is installed at the bottom of the measuring chamber main frame (9), and the locking part of the second locking device (7) is connected with the corresponding sample liquid supply pipeline.

9. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 6, characterized in that: It also comprises a third locking device (8), the condensation reflux device (4) is vertically arranged and fixedly installed at the top of the measuring chamber main frame (9) through the third locking device (8).

10. The high-accuracy water quality ORP permanganate index detection electrode method measuring chamber according to claim 1, characterized in that: The detection module (1) is provided as an ORP electrode.

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