CN212845158U - Three-electrode measuring device - Google Patents
Three-electrode measuring device Download PDFInfo
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- CN212845158U CN212845158U CN202021539723.6U CN202021539723U CN212845158U CN 212845158 U CN212845158 U CN 212845158U CN 202021539723 U CN202021539723 U CN 202021539723U CN 212845158 U CN212845158 U CN 212845158U
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Abstract
The utility model discloses a three electrode measuring device, include: the measuring tank is provided with a cavity for containing a measuring solution in the middle, the measuring tank is provided with a liquid inlet and a liquid outlet respectively, and the liquid inlet and the liquid outlet are communicated with the cavity; the top of the measuring cell is covered with an upper cover, the upper cover is respectively provided with a reference electrode, an ORP electrode and a chloride ion electrode, and the reference electrode, the ORP electrode and the chloride ion electrode penetrate into the cavity; the measuring tank is characterized in that a driving motor used for uniformly mixing the measuring solution is arranged under the measuring tank, an output shaft of the driving motor drives a magnetic cylinder, and a stirrer attracted with the magnetic cylinder is arranged in the cavity. The utility model provides a three electrode measuring device, three electrode follow upper cover insert to the measuring cell in the cavity, and three electrode setting makes this measuring device's occupation space little in a direction, simultaneously, carries out effectual control through driving motor to stirring speed, has improved stirring efficiency.
Description
Technical Field
The utility model belongs to the technical field of fluid analysis technique and specifically relates to a three electrode measuring device is related to.
Background
With the issuance and the proposal of various policies such as 'ten items of water' in China, the country puts higher requirements on the water quality environment, increases the monitoring strength on the water quality on-line monitoring and provides wide market space for on-line instruments. Heavy metal, permanganate index and the like are used as items which must be measured in various water qualities, so that the demand on a water quality online monitoring instrument in a long time is greatly increased.
In the measuring device in the prior art, the measuring cell is inserted from different directions, then the stirring paddle is inserted from the upper part for stirring, and the three electrodes are inserted from different directions, so that the occupied space of the device is larger.
Accordingly, the prior art is yet to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art not enough, the utility model aims to provide a three electrode measuring device, three electrode setting makes occupation space little in one direction.
The technical scheme of the utility model as follows:
a three-electrode measurement device, comprising:
the measuring tank is provided with a cavity for containing a measuring solution in the middle, the measuring tank is provided with a liquid inlet and a liquid outlet respectively, and the liquid inlet and the liquid outlet are communicated with the cavity;
the top of the measuring cell is covered with an upper cover, the upper cover is respectively provided with a reference electrode, an ORP electrode and a chloride ion electrode, and the reference electrode, the ORP electrode and the chloride ion electrode penetrate into the cavity;
the measuring tank is characterized in that a driving motor used for uniformly mixing the measuring solution is arranged under the measuring tank, an output shaft of the driving motor drives a magnetic cylinder, and a stirrer attracted with the magnetic cylinder is arranged in the cavity.
Preferably, the upper cover is provided with a micro-metering unit;
the micro-metering unit comprises a sample injection needle support and a sample injection needle arranged on the sample injection needle support, and the sample injection needle support fixes the sample injection needle through a screw.
Preferably, the reference electrode, the ORP electrode and the chloride ion electrode are sleeved with an electrode fixing joint and a sealing ring, and the sealing ring is tightly pressed at the bottom of the electrode fixing joint.
Preferably, the sealing ring is an O-ring.
Preferably, the electrode fixing joint is provided with an external thread, and the inner wall of the hole of the upper cover for installing the reference electrode, the ORP electrode and the chloride ion electrode is provided with an internal thread matched with the external thread.
Preferably, the bottom of the measuring cell is provided with a motor fixing seat for installing a driving motor, an output shaft of the driving motor is fixedly provided with a magnet fixing seat, and the magnetic cylinder is arranged on the magnet fixing seat.
Preferably, the driving motor is fixed on the motor fixing seat through a screw.
Preferably, the liquid outlet is lower than the bottom of the cavity.
Preferably, the measuring cell is made of PMMA material.
Preferably, the driving motor is a stepping motor.
Compared with the prior art, the three-electrode measuring device provided by the application mainly has the following beneficial effects:
three electrode inserts to the cavity of measuring cell from the upper cover, and three electrode setting makes this measuring device's occupation space little in an orientation, simultaneously, carries out effectual control to stirring speed through driving motor, improves the efficiency of stirring, and in addition, the mode that adopts the appearance needle improves the accuracy and the repeatability of micro-metering, and adopts the form compression sealing washer of screw thread tightening to fix three electrode, and the convenient dismantlement is maintained.
Drawings
In order to illustrate the solution of the present application more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained by those skilled in the art without inventive effort.
Fig. 1 is a first cross-sectional view of a preferred embodiment of a three-electrode measuring device according to the present invention.
Fig. 2 is a second cross-sectional view of a preferred embodiment of the three-electrode measuring device of the present invention.
Fig. 3 is a top view of a preferred embodiment of the three-electrode measuring device of the present invention.
Detailed Description
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
As shown in fig. 1 to 3, a three-electrode measuring device according to a preferred embodiment of the present invention includes a measuring cell 100, a cavity 101 for containing a measuring solution is disposed in the middle of the measuring cell 100, the measuring cell 100 is respectively provided with a liquid inlet 102 and a liquid outlet 103, and the liquid inlet 102 and the liquid outlet 103 are both connected to the cavity 101; the top of the measuring cell 100 is covered with an upper cover 200, the upper cover 200 is respectively provided with a reference electrode 300, an ORP electrode 400 and a chloride ion electrode 500, and the reference electrode 300, the ORP electrode 400 and the chloride ion electrode 500 penetrate into the cavity 101; a driving motor 600 for uniformly mixing the measuring solution is arranged under the measuring cell 100, an output shaft of the driving motor 600 drives a magnetic column 700, and a stirrer 800 attracted with the magnetic column 700 is arranged in the cavity 101. The stirrer 800 may be provided in various shapes, such as O-shaped, A-shaped, B-shaped, etc.
In a further preferred embodiment of the present invention, the upper cover 200 is provided with a micro-metering unit 900; the micro-metering unit 900 comprises a sample injection needle support 901 and a sample injection needle 902 arranged on the sample injection needle support 901, the sample injection needle support 901 fixes the sample injection needle 902 through a screw, and the sample injection needle 902 is fixed through a screw prepressing mode, so that the sample injection needle 902 is convenient to detach and maintain. In consideration of the measurement of a trace amount of reagent in the test process, the accuracy and the repeatability of the trace amount measurement are improved by adopting the mode of the sample injection needle 902.
In a further preferred embodiment of the present invention, the reference electrode 300, the ORP electrode 400, and the chloride ion electrode 500 are all sleeved with an electrode fixing joint 301 and a sealing ring 302, the sealing ring 302 is pressed against the bottom of the electrode fixing joint 301, and the sealing ring 302 is preferably an O-ring.
The O-shaped sealing ring is sleeved at a certain fixed position on the reference electrode 300, the ORP electrode 400 and the chloride ion electrode 500, the electrode fixing joint 301 penetrates through the three electrodes from one end with metal, the penetrated O-shaped ring and the electrode of the electrode fixing joint 301 are inserted into corresponding holes in the upper cover 200, the electrode fixing joint 301 and the upper cover 200 are connected and fastened through screwing an electrode tool, and the O-shaped ring fixing electrode is compressed.
In a further preferred embodiment of the present invention, the electrode fixing tab 301 is provided with an external thread (not shown), and the inner wall of the hole of the upper cover 200 for installing the reference electrode 300, the ORP electrode 400 and the chloride ion electrode 500 is provided with an internal thread adapted to the external thread.
The utility model discloses in the further preferred embodiment, the bottom of measuring cell 100 is provided with the motor fixing base 601 that is used for installing driving motor 600, the fixed magnet fixing base 701 that is provided with on the output shaft of driving motor 600, magnetism cylinder 700 sets up on magnet fixing base 701.
In a further preferred embodiment of the present invention, the driving motor 600 is fixed on the motor fixing base 601 by screws.
In a further preferred embodiment of the present invention, the liquid outlet 103 is lower than the bottom of the cavity 101, and the measuring cell 100 is made of PMMA. The PMMA material is manufactured by machining, the measuring cell 100 can be ensured to be flat and smooth, the measuring cell can be transparent like glass after being polished, and in addition, the liquid discharge port 103 is lower than the cavity 101, so that waste liquid can be drained conveniently.
The utility model discloses in the further preferred embodiment, driving motor 600 is step motor, considers that different situations have the requirement to stirring speed, adopts step motor to control stirring speed.
To sum up, the utility model provides a three-electrode measuring device, include: the measuring tank is provided with a cavity for containing a measuring solution in the middle, the measuring tank is provided with a liquid inlet and a liquid outlet respectively, and the liquid inlet and the liquid outlet are communicated with the cavity; the top of the measuring cell is covered with an upper cover, the upper cover is respectively provided with a reference electrode, an ORP electrode and a chloride ion electrode, and the reference electrode, the ORP electrode and the chloride ion electrode penetrate into the cavity; the measuring cell is provided with the driving motor who is used for the mixing to measure solution under, driving motor's output shaft drive has a magnetism cylinder, be provided with the stirring seed of inhaling mutually with the magnetism cylinder in the cavity, because three electrode inserts to the cavity of measuring cell from the upper cover, three electrode setting makes this measuring device's occupation space little in an orientation, simultaneously, carries out effectual control through driving motor to stirring speed, has improved stirring efficiency.
It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields and are within the protection scope of the present application.
Claims (10)
1. A three-electrode measuring device, comprising:
the measuring tank is provided with a cavity for containing a measuring solution in the middle, the measuring tank is provided with a liquid inlet and a liquid outlet respectively, and the liquid inlet and the liquid outlet are communicated with the cavity;
the top of the measuring cell is covered with an upper cover, the upper cover is respectively provided with a reference electrode, an ORP electrode and a chloride ion electrode, and the reference electrode, the ORP electrode and the chloride ion electrode penetrate into the cavity;
the measuring tank is characterized in that a driving motor used for uniformly mixing the measuring solution is arranged under the measuring tank, an output shaft of the driving motor drives a magnetic cylinder, and a stirrer attracted with the magnetic cylinder is arranged in the cavity.
2. The three-electrode measuring device according to claim 1, wherein the upper cover is provided with a micro-metering unit;
the micro-metering unit comprises a sample injection needle support and a sample injection needle arranged on the sample injection needle support, and the sample injection needle support fixes the sample injection needle through a screw.
3. The three-electrode measuring device according to claim 2, wherein the reference electrode, the ORP electrode and the chloride ion electrode are sleeved with an electrode fixing joint and a sealing ring, and the sealing ring is pressed at the bottom of the electrode fixing joint.
4. A three-electrode measuring device according to claim 3, wherein the sealing ring is an O-ring.
5. The three-electrode measuring device according to claim 3, wherein the electrode fixing joint is provided with external threads, and the inner wall of the hole for installing the reference electrode, the ORP electrode and the chloride ion electrode on the upper cover is provided with internal threads matched with the external threads.
6. The three-electrode measuring device according to claim 1, wherein a motor fixing seat for installing a driving motor is arranged at the bottom of the measuring cell, a magnet fixing seat is fixedly arranged on an output shaft of the driving motor, and the magnetic cylinder is arranged on the magnet fixing seat.
7. A three-electrode measuring device according to claim 6, wherein the drive motor is fixed to the motor holder by screws.
8. A three-electrode measuring device according to claim 1, wherein the drain port is below the bottom of the chamber.
9. A three-electrode measuring device according to claim 1, wherein the measuring cell is made of PMMA material.
10. A three-electrode measuring device according to claim 1, wherein the drive motor is a stepper motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021539723.6U CN212845158U (en) | 2020-07-29 | 2020-07-29 | Three-electrode measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021539723.6U CN212845158U (en) | 2020-07-29 | 2020-07-29 | Three-electrode measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212845158U true CN212845158U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021539723.6U Active CN212845158U (en) | 2020-07-29 | 2020-07-29 | Three-electrode measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212845158U (en) |
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2020
- 2020-07-29 CN CN202021539723.6U patent/CN212845158U/en active Active
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