CN217466772U - Electrode method water quality monitor - Google Patents
Electrode method water quality monitor Download PDFInfo
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- CN217466772U CN217466772U CN202221549357.1U CN202221549357U CN217466772U CN 217466772 U CN217466772 U CN 217466772U CN 202221549357 U CN202221549357 U CN 202221549357U CN 217466772 U CN217466772 U CN 217466772U
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Abstract
The application relates to an electrode method water quality monitor, include: a housing, the housing includes a middle cylinder and a waterproof joint and a lower cover connected to the upper and lower ends of the middle cylinder, NH is installed in the middle cylinder 4 The electrode, the reference electrode and the temperature electrode, wherein the side wall of the lower cover is provided with a hollow hole, and the NH is 4 The electrode, the reference electrode and the temperature electrode all penetrate out of the middle cylinder and extend into the lower cover, and the NH is 4 The electrode and the reference electrode extend to the same length in the lower cover. By reacting NH with 4 The electrode, the reference electrode and the temperature electrode are simultaneously arranged in the shellThe integration of each electrode in the monitor is enhanced, and only one immersion operation is needed to complete the measurement of ammonia nitrogen parameters in water quality in the process of detecting the water quality, so that the detection efficiency is improved.
Description
Technical Field
The application relates to the technical field of digital instruments, in particular to an electrode method water quality monitor.
Background
The water quality instrument can be used for detecting surface water such as rivers and lakes, and can also be used for monitoring in real time in tap water and industrial wastewater, wherein an ammonia nitrogen parameter is one of very important water quality parameters.
At present, the conventional methods for detecting ammonia nitrogen mainly comprise a Nassner reagent spectrophotometry method, a salicylic acid spectrophotometry method, a distillation-neutralization titration method and the like.
The nano spectrophotometry reagent has high toxicity, is easy to cause secondary pollution, and has more interference of organic matters and metal ions on the detection result; the salicylic acid spectrophotometry has a small measuring range, and organic matters and more turbidity metal ions interfere with each other; the low concentration error of the distillation-neutralization titration method is large, corrosion is easy to cause, and the maintenance workload is large. The water quality can be rapidly measured through the monitoring electrode, and the method has strong convenience.
The existing water quality monitoring electrode generally inserts an electrode for detecting water quality and a reference electrode into a solution at the same time to obtain a potential difference between the two electrodes, and then data conversion is carried out, the two electrodes need to be independently operated in an operation process, whether the depth of the electrodes immersed into the solution is consistent needs to be considered, and the monitoring precision cannot be guaranteed due to the existence of operation errors, so that the high-efficiency monitoring of the water quality is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an electrode method water quality monitoring appearance, the ammonia nitrogen parameter in the mainly used monitoring quality of water can be integrated on same main part equipment with detecting electrode and reference electrode simultaneously to stretch into the same form of length through two kinds of electrodes in solution, ensure water quality testing's precision.
In order to achieve the above object, the utility model provides an electrode method water quality monitor, include: a housing, the housing includes a middle cylinder and a waterproof joint and a lower cover connected to the upper and lower ends of the middle cylinder, NH is installed in the middle cylinder 4 The electrode, the reference electrode and the temperature electrode, wherein the side wall of the lower cover is provided with a hollow hole, and the NH is 4 The electrode, the reference electrode and the temperature electrode all penetrate out of the middle cylinder and extend into the lower cover, and the NH is 4 The electrode and the reference electrode extend to the same length in the lower cover.
Further, the NH 4 The electrode includes an outer part in the lower coverAnd the side wall of the exposed section is coated with an ion exchange membrane.
Furthermore, a data processing circuit board is arranged in the middle cylinder, and NH is arranged on the data processing circuit board 4 The electrode potential detection device comprises an electrode potential detection module, a reference electrode potential detection module, a data processing module and a control module, wherein the data processing module is electrically connected with the control module.
Further, the NH 4 The electrode potential detection module and the reference electrode potential detection module are respectively and electrically connected with the data processing module, and the NH 4 Electrode and the NH 4 The electrode potential detection module is electrically connected, and the reference electrode is electrically connected with the reference electrode potential detection module.
The data line penetrates through the waterproof connector and is connected with the data processing circuit board, the waterproof connector is in threaded connection with the middle cylinder, and a sealing rubber ring and a pressing ring are arranged at the connection part of the middle cylinder and the waterproof connector.
Further, the NH 4 The electrode and the reference electrode are detachably screwed in the middle cylinder and are positioned in the NH 4 And the electrode and the reference electrode are both provided with O-shaped rings.
Further, the lower cover is detachably connected to the middle cylinder in a threaded mode, and the through holes are evenly distributed in the side wall of the lower cover.
The utility model provides an electrode method water quality monitoring appearance through with NH 4 Electrode, reference electrode and temperature electrode install simultaneously in the casing, have strengthened the integrated nature of each electrode at the monitor, carry out the testing process to quality of water, only need once soak the operation and can accomplish the measurement to quality of water ammonia nitrogen parameter, have improved detection efficiency.
In addition, by NH 4 The electrode and the reference electrode have the same extension length in the lower cover, the immersion depth of the two electrodes in the solution can be controlled, the shell is vertically immersed in the solution to be detected in the detection process, the top of the lower cover is flush with the solution surface, the solution can be immersed in the lower cover through the hollow hole, and the detection electrode and the reference electrode are ensuredThe detection precision is fundamentally improved as the electrodes are in the same detection state.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic diagram of the internal structure of an electrode water quality monitor according to the present application;
FIG. 2 is a schematic view of the distribution of different electrodes on the housing according to the present application;
fig. 3 is an external structure schematic diagram of the electrode water quality monitor in the application.
Icon:
1-lower cover; 2-O-shaped ring; 3-a middle cylinder; 4-sealing rubber ring; 5-a pressing ring; 6-waterproof joint; 7-a data processing circuit board; 8-NH 4 An electrode; 9-temperature electrode; 10-a reference electrode; 11-a data line; 12-engraving holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The application provides an electrode method water quality monitoring appearance, mainly adopts the electrode to come the ammonia nitrogen content to detect in the quality of water. The water quality monitor mainly comprises NH 4 Electrode 8, reference electrode 10, NH 4 The electrode potential detection module, the reference electrode potential detection module, the data processing module and the control module need to simultaneously detect NH in the detection process 4 The electrode 8 and the reference electrode 10 are immersed in the solution, and NH is obtained through different potential detection modules respectively 4 The potentials of the electrode 8 and the reference electrode 10, and the potential signals are transmitted to a data processing module for processing NH 4 And (3) potential signals of the electrode 8 and the reference electrode 10 are in positive correlation with ammonia nitrogen in the solution according to the potential signals, and finally, ammonia nitrogen water quality parameters are obtained.
Referring to fig. 1-3, the electrode method water quality monitor provided by the application comprises a shell with a main structure, wherein the shell mainly comprises a middle cylinder 3, and a waterproof joint 6 and a lower cover 1 which are respectively connected to the upper end and the lower end of the middle cylinder 3. Wherein NH 4 An electrode 8, a reference electrode 10 and a temperature electrode 9 for measuring the temperature of the solution are arranged in the middle cylinder 3, and a hollow hole 12, NH is arranged on the side wall of the lower cover 1 4 The electrode 8, the reference electrode 10 and the temperature electrode 9 all penetrate out of the bottom of the middle barrel 3, extend into the lower cover 1 and are exposed through the hollow hole 12.
In the detection process, the lower cover 1 of the monitor is partially immersed in the solution, the solution is filled in the whole lower cover 1 through the hollow holes 12, and different electrodes are immersed in the solution at the same time to generate a potential signal or detect the temperature of the solution.
By reacting NH with 4 The extension lengths of the electrode 8 and the reference electrode 10 in the lower cover 1 are set to be the same, so that the detection electrode and the reference electrode 10 can be immersed in the solution to the same depth, and different electrodes can generate a detection potential signal and a reference potential signal under the same environmental condition, thereby ensuring the accuracy of the measurement result. Different electrodes are arranged on the same monitor, so that high integration of different composition structures is realized, the detection difficulty is reduced, and the detection efficiency is improved.
NH 4 The electrode 8 comprises an exposed section positioned in the lower cover 1, and the side wall of the exposed section is coated with an ion exchange membrane. In the detection process, when the ion exchange membrane is immersed into a solution, the membrane can be dissolved in the organic solution and mutually permeate with PVC grids to generate a potential signal, namely NH 4 The electrode 8 transmits the generated potential signal to the outside.
The middle cylinder 3 is internally provided with a data processing circuit board 7, and the data processing circuit board 7 is mainly used for bearing and installing a potential detection module, a data processing module and a control module of different electrodes.
Specifically, the potential detection module provided on the data processing circuit board 7 includes NH 4 An electrode potential detection module and a reference electrode potential detection module, respectively for receiving NH 4 Potential signals of the electrode 8 and the reference electrode 10, and NH 4 The electrode potential detection module and the reference electrode potential detection module are respectively electrically connected with the data processing module and are used for receiving the NH 4 The potential signals of the electrode 8 and the reference electrode 10 are transmitted to a data processing module in order to ensure NH 4 The electrode 8 and the reference electrode 10 are capable of transmitting a potential signal, NH, in real time 4 Electrode 8 and NH 4 The electrode potential detection module is electrically connected, the reference electrode 10 is electrically connected with the reference electrode potential detection module, and can form potential signal acquisition, potential signal transmission and potentialAnd the sequential connection of signal processing ensures the reliability of water quality detection.
Furthermore, the data processing module is electrically connected with the control module, when the control module detects that the data in the data processing module is in an abnormal state, the abnormal state of the instrument can be automatically judged, an abnormal signal is returned, and an operator timely replaces the electrode after receiving the abnormal signal, so that the operation and maintenance efficiency is greatly improved.
The control module in this embodiment can be with the data in the data processing module outwards transmission, and the external transmission of data mainly goes on through data line 11, and data line 11 passes water joint 6 and meets with data processing circuit board 7, can transmit the quality of water data that the monitor detected to the host computer through data line 11, in time knows the ammonia nitrogen data in the quality of water.
In order to ensure the waterproof sealing performance, a waterproof joint 6 is screwed on the upper part of the middle cylinder 3, and a sealing rubber ring 4 and a pressing ring 5 are arranged at the joint part of the middle cylinder 3 and the waterproof joint 6. Preferably, the sealing rubber ring 4 and the pressing ring 5 are sleeved on the side wall of the data line 11 and are connected with the middle cylinder 3 through the waterproof joint 6 in a threaded manner, so that the sealing rubber ring 4 and the pressing ring 5 can be tightly and tightly sealed at the connecting part of the middle cylinder 3 and the waterproof joint 6, and the sealing performance is enhanced.
NH 4 The electrode 8 and the reference electrode 10 are detachably screwed on the middle cylinder 3, so that the electrode is easy to replace and convenient to maintain.
At NH 4 The side walls of the electrode 8 and the reference electrode 10 are sleeved with O-shaped rings 2. Through the O type circle 2 that sets up, strengthened the leakproofness between electrode and the casing, prevent that solution from getting into well section of thick bamboo 3 through the gap between electrode and the casing, and then reduced the possibility of solution to data processing circuit board 7.
Lower cover 1 detachably threaded connection can conveniently clear up the surface of electrode in the bottom of section of thick bamboo 3 in to avoid the mutual interference between the different solution tests.
In order to make the detection solution enter the lower cover 1 more fully and quickly, the through holes 12 are uniformly distributed on the side wall of the lower cover 1, when the lower cover 1 is immersed into the solution, the solution can be uniformly filled into the cavity of the lower cover 1 in the circumferential direction of the lower cover 1 and is in contact with the electrodes, and the detection efficiency and the reliability are improved.
In a specific implementation example, the data processing module processes the potential signal through a hardware algorithm and compensates some of the interferences, the obtained value is in positive correlation with ammonia nitrogen in the solution, and finally the ammonia nitrogen parameter of the water quality is obtained. The middle cylinder 3 adopts a corrosion-resistant shell, so that the service life is prolonged.
A temperature and humidity sensor is arranged inside the middle barrel 3, so that whether water leakage occurs or not is monitored in real time, and fault alarm is performed. NH 4 The electrode 8 is a porous ceramic capacitive NH4 ion electrode, compared with the conventional NH 4 The stability and the reaction speed of the ion electrode are obviously improved, and the accuracy and the stability of data during low-concentration and high-concentration detection are greatly improved. The potential of the electrode end is monitored in real time, the influence of other ions is eliminated, and the accuracy and the stability of data are guaranteed.
The control module is embedded with an operation and maintenance judging mode, and can judge and monitor the running state of the electrode. The whole monitor has high integration, small size and light weight, and can automatically measure when electrified.
The electrode adopts the detachable design, is easy to replace and is convenient to maintain. Data transmission adopts standard MODBUS agreement, accessible 485 communication structures and outside host computer communication. The monitor is internally provided with a multipoint multi-curve calibration function and a surface water compensation calibration function, and can be correspondingly calibrated under different water quality environments, so that the data accuracy is ensured.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. ElectrodeMethod water quality monitor, its characterized in that includes: a housing, the housing includes a middle cylinder and a waterproof joint and a lower cover connected to the upper and lower ends of the middle cylinder, NH is installed in the middle cylinder 4 The electrode, the reference electrode and the temperature electrode, wherein the side wall of the lower cover is provided with a hollow hole, and the NH is 4 The electrode, the reference electrode and the temperature electrode all penetrate out of the middle cylinder and extend into the lower cover, and the NH is 4 The electrode and the reference electrode extend to the same length in the lower cover.
2. The electrode-method water quality monitor according to claim 1, wherein the NH is 4 The electrode comprises an exposed section positioned in the lower cover, and an ion exchange membrane is coated on the side wall of the exposed section.
3. The electrode water quality monitor according to claim 1, wherein a data processing circuit board is arranged in the middle cylinder, and NH is arranged on the data processing circuit board 4 The electrode potential detection device comprises an electrode potential detection module, a reference electrode potential detection module, a data processing module and a control module, wherein the data processing module is electrically connected with the control module.
4. The electrode-method water quality monitor according to claim 3, wherein the NH is 4 The electrode potential detection module and the reference electrode potential detection module are respectively and electrically connected with the data processing module, and the NH 4 Electrode and the NH 4 The electrode potential detection module is electrically connected, and the reference electrode is electrically connected with the reference electrode potential detection module.
5. The electrode method water quality monitor according to claim 3, further comprising a data line, wherein the data line penetrates through the waterproof joint and is connected with the data processing circuit board, the waterproof joint is in threaded connection with the middle cylinder, and a sealing rubber ring and a pressing ring are arranged at the connection part of the middle cylinder and the waterproof joint.
6. The electrode-method water quality monitor according to claim 3, wherein the NH is 4 The electrode and the reference electrode are detachably screwed in the middle cylinder and are positioned in the NH 4 And the electrode and the reference electrode are both provided with O-shaped rings.
7. The electrode water quality monitor according to claim 1, wherein the lower cover is detachably screwed on the middle cylinder, and the through holes are uniformly distributed on the side wall of the lower cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221549357.1U CN217466772U (en) | 2022-06-21 | 2022-06-21 | Electrode method water quality monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221549357.1U CN217466772U (en) | 2022-06-21 | 2022-06-21 | Electrode method water quality monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466772U true CN217466772U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221549357.1U Active CN217466772U (en) | 2022-06-21 | 2022-06-21 | Electrode method water quality monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217466772U (en) |
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2022
- 2022-06-21 CN CN202221549357.1U patent/CN217466772U/en active Active
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