Temperature correction self-display type copper sulfate portable reference electrode
By introducing a temperature probe and data processing circuit into the copper sulfate reference electrode to calculate and correct the temperature deviation, the problem of inconstant temperature in cathode protection measurement is solved, and a higher accuracy potential measurement is achieved.
Patent Information
- Application Number
- CN202421599140.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-08
AI Technical Summary
In actual cathode protection measurement, it is impossible to ensure that the temperature of the copper sulfate reference electrode is constant, resulting in a deviation in the measurement potential and causing safety hazards.
A temperature-corrected autoexplicit copper sulfate portable reference electrode is designed, including a shell, an electrode rod and a temperature probe. The temperature inside the shell is measured by the temperature probe, and the correction potential is calculated based on the temperature deviation, and it is directly added to the measurement potential to obtain an accurate temperature correction potential.
Through temperature correction, the potential value of the measured object can be accurately grasped, which improves the accuracy of measurement and reduces safety risks.
Smart Images
Figure CN222913558U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of corrosion protection measurement, and particularly relates to a temperature-corrected self-displaying copper sulfate portable reference electrode. Background Technique
[0002] Cathodic protection is a common electrochemistry method in metal corrosion and protection. One of the important parameters of cathodic protection is the protection potential. In actual measurement, the potential of a single electrode cannot be directly measured. It is necessary to use a reference electrode for comparison. The pipeline to be measured and the reference electrode with a precisely known electrode potential value form a battery. The electromotive force value of the battery is measured, and the potential value is measured by a measuring instrument, so as to indirectly obtain the potential. This electrode is the reference electrode. The long-distance natural gas pipelines in China are basically large-diameter metal buried pipelines. When the electrolyte is soil or fresh water, a copper sulfate reference electrode is generally used to measure as the device providing the reference potential.
[0003] The standard operating temperature of the copper sulfate reference electrode is 25°C. In actual potential measurement, it is impossible to ensure that the temperature remains constant, resulting in deviation of the actual measured potential and potential safety hazards. Content of the Utility Model
[0004] The utility model provides a temperature-corrected self-displaying copper sulfate portable reference electrode, aiming to solve the problems in the prior art.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] A temperature-corrected self-displaying copper sulfate portable reference electrode includes a housing, an electrode rod and a temperature probe. The housing is used to contain copper sulfate solution; the electrode rod is vertically and fixedly installed in the housing, and its lower end extends to the lower part inside the housing; the temperature probe is fixedly installed on the top wall inside the housing.
[0007] The beneficial effect of the utility model is: during use, the temperature inside the housing is measured by the temperature probe to obtain the actual temperature value T; generally, the temperature of the copper sulfate reference electrode at 25°C is regarded as a standard zero point, V (corrected potential amount) = {T - 25} * 0.9, and the unit of the corrected potential amount V is millivolt. The measured potential and the corrected potential are directly added to obtain the temperature-corrected potential of the measured object.
[0008] The utility model has a simple structure and reasonable design, provides a copper sulfate portable reference electrode for directly reading the temperature-corrected potential amount, provides an intuitive and convenient potential correction amount, so as to master the accurate potential value of the measured object, and has high precision.
[0009] On the basis of the above technical solution, the utility model can also be improved as follows.
[0010] Further, the housing includes a cylinder and an electrode cap. The upper end of the cylinder is open; the electrode cap is fixedly installed at the upper end of the cylinder, and the electrode rod and the temperature probe are respectively fixedly installed on the electrode cap.
[0011] The beneficial effect of adopting the above further solution is that the structure of the housing is reasonably designed, and the split structure is adopted, which is convenient for assembling each component.
[0012] Further, the cylinder has a cylindrical structure.
[0013] The beneficial effect of adopting the above further solution is that the shape of the cylinder is reasonably designed and the overall appearance is beautiful.
[0014] Further, a through hole is provided at the lower end of the cylinder, and a porous permeable membrane is fixedly installed at the through hole.
[0015] The beneficial effect of adopting the above further solution is that the structure is simple and reasonably designed. When measuring, the copper sulfate solution permeates through the porous permeable membrane for measurement.
[0016] Further, the through hole is a circular hole.
[0017] The beneficial effect of adopting the above further solution is that the structure is simple and reasonably designed. The shape of the above through hole is reasonably designed, which is convenient for assembling the porous permeable membrane.
[0018] Further, a data processing circuit is further included, and the data processing circuit is fixedly installed on the electrode cap.
[0019] The beneficial effect of adopting the above further solution is that during use, the corresponding temperature is measured by the temperature probe, and the corresponding data is transmitted to the data processing circuit, and the data processing circuit receives the corresponding data for processing.
[0020] Further, an installation cavity is provided in the electrode cap, the data processing circuit is fixedly installed in the installation cavity, and the temperature probe is communicatively connected to the data processing circuit.
[0021] The beneficial effect of adopting the above further solution is that the structure is simple, the installation cavity is reasonably designed, which is convenient for assembling the data processing circuit, saves space, and is safe and reliable.
[0022] Further, the installation cavity is a circular cavity.
[0023] The beneficial effect of adopting the above further solution is that the structure is simple and reasonably designed. The shape of the above installation cavity is reasonably designed, which is convenient for matching with the outer shape of the electrode cap.
[0024] Further, an installation hole communicating with the installation cavity is provided at the upper end of the electrode cap, and a display screen is fixedly installed at the installation hole, and the display screen is communicatively connected to the data processing circuit.
[0025] The beneficial effect of adopting the above further solution is that during use, the corresponding temperature is measured by the temperature probe, and the corresponding data is transmitted to the data processing circuit. The data processing circuit receives the corresponding data for processing and displays the corresponding result on the display screen.
[0026] Furthermore, the installation hole is a circular hole, and the display screen is a circular display screen.
[0027] The beneficial effect of adopting the above further solution is that the structure is simple, the shape design of the display screen is reasonable, and it is convenient to observe. Description of the Drawings
[0028] Figure 1 is the assembly drawing of the present utility model;
[0029] Figure 2 is the exploded view of the present utility model;
[0030] Figure 3 is the structural schematic diagram of the present utility model during actual measurement.
[0031] In the drawings, the list of components represented by each reference numeral is as follows:
[0032] 1. Electrode rod; 2. Temperature probe; 3. Cylinder body; 4. Electrode cap; 5. Porous permeable membrane; 6. Data processing circuit; 7. Display screen; 8. Multimeter; 9. Metal pipeline; 10. Reference electrode. Detailed Embodiments
[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.
[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.
[0035] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0036] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.
[0037] Embodiment 1
[0038] As Figures 1 to 3 shown, this embodiment provides a temperature-corrected self-displaying copper sulfate portable reference electrode, which includes a housing, an electrode rod 1, and a temperature probe 2. The housing is used to contain copper sulfate solution; the electrode rod 1 is vertically and fixedly installed in the housing, and its lower end extends to the lower part inside the housing; the temperature probe 2 is fixedly installed on the top wall inside the housing.
[0039] During use, the temperature inside the housing is measured by the temperature probe 2 to obtain the actual temperature value T; generally, the temperature of the copper sulfate reference electrode is regarded as a standard zero point at 25°C, V (corrected potential amount) = {T - 25} * 0.9, and the unit of the corrected potential amount V is millivolt. The measured potential is directly added to the corrected potential to obtain the temperature-corrected potential of the measured object.
[0040] It should be noted that generally, the temperature of the above copper sulfate reference electrode is regarded as a standard zero point at 25°C. When there is a deviation between the actual temperature and 25°C, a potential difference of 0.9 millivolt is generated for each 1°C deviation. This is the prior art.
[0041] In addition, the above temperature probe 2 is preferably a temperature sensor (DS18B20).
[0042] This embodiment has a simple structure and reasonable design, provides a copper sulfate portable reference electrode for directly reading the temperature-corrected potential amount, provides an intuitive and convenient potential correction amount, so as to master the accurate potential value of the measured object, and has high accuracy.
[0043] Embodiment 2
[0044] Based on Embodiment 1, in this embodiment, the housing includes a cylinder 3 and an electrode cap 4. The upper end of the cylinder 3 is open; the electrode cap 4 is fixedly installed at the upper end of the cylinder 3, and the electrode rod 1 and the temperature probe 2 are respectively fixedly installed on the electrode cap 4.
[0045] The structure of the housing is reasonably designed, and it adopts a split structure, which is convenient for assembling each component.
[0046] Based on the above solution, the above electrode cap 4 is fixedly installed at the upper end of the cylinder body 3 by screws.
[0047] In addition, the upper end of the electrode rod 1 is fixedly connected to the center of the lower surface of the electrode cap 4.
[0048] Moreover, the temperature probe 2 is fixedly installed on the electrode cap 4, and its lower end extends below the electrode cap 4.
[0049] Preferably, in this embodiment, the above electrode rod 1 is preferably a copper electrode.
[0050] In addition, the length of the above electrode rod 1 is four-fifths of the length of the cylinder body 3.
[0051] Embodiment 3
[0052] Based on Embodiment 2, in this embodiment, the cylinder body 3 has a cylindrical structure.
[0053] The shape of the cylinder body 3 is reasonably designed and the overall appearance is beautiful.
[0054] Alternatively, the above cylinder body 3 can also adopt other geometric shapes, such as a rectangular cross-section.
[0055] Embodiment 4
[0056] Based on any one of Embodiments 2 to 3, in this embodiment, a through hole is provided at the lower end of the cylinder body 3, and a porous permeable membrane 5 is fixedly installed at the through hole.
[0057] This solution has a simple structure and reasonable design. When measuring, the copper sulfate solution permeates through the porous permeable membrane 5 for measurement.
[0058] Embodiment 5
[0059] Based on Embodiment 4, in this embodiment, the through hole is a circular hole.
[0060] This solution has a simple structure and reasonable design. The shape of the above through hole is reasonably designed, which is convenient for assembling the porous permeable membrane 5.
[0061] Alternatively, the above through hole can also adopt other suitable geometric shapes, such as a rectangle.
[0062] Embodiment 6
[0063] Based on any one of Embodiments 2 to 5, this embodiment further includes a data processing circuit 6, and the data processing circuit 6 is fixedly installed on the electrode cap 4.
[0064] In use, the corresponding temperature is measured by the temperature probe 2, and the corresponding data is transmitted to the data processing circuit 6. The data processing circuit 6 receives the corresponding data for processing.
[0065] Based on the above solution, the data processing circuit 6 is equivalent to a small controller in the prior art.
[0066] Embodiment 7
[0067] Based on Embodiment 6, in this embodiment, an installation cavity is provided in the electrode cap 4, the data processing circuit 6 is fixedly installed in the installation cavity, and the temperature probe 2 is communicatively connected to the data processing circuit 6.
[0068] This solution has a simple structure, a reasonable design of the installation cavity, is convenient for assembling the data processing circuit 6, saves space, and is safe and reliable.
[0069] Alternatively, the data processing circuit 6 is directly fixedly installed on the electrode cap 4.
[0070] Embodiment 8
[0071] Based on Embodiment 7, in this embodiment, the installation cavity is a circular cavity.
[0072] This solution has a simple structure and a reasonable design. The shape of the above installation cavity is reasonable and is convenient for matching the outer shape of the electrode cap.
[0073] Embodiment 9
[0074] Based on any one of Embodiments 7 to 8, in this embodiment, an installation hole communicating with the installation cavity is provided at the upper end of the electrode cap 4, a display screen 7 is fixedly installed at the installation hole, and the display screen 7 is communicatively connected to the data processing circuit 6.
[0075] In use, the corresponding temperature is measured by the temperature probe 2, and the corresponding data is transmitted to the data processing circuit 6. The data processing circuit 6 receives the corresponding data for processing and displays the corresponding result on the display screen 7.
[0076] Embodiment 10
[0077] Based on Embodiment 9, in this embodiment, the installation hole is a circular hole, and the display screen 7 is a circular display screen.
[0078] This solution has a simple structure, a reasonable design of the shape of the display screen 7, and is convenient for observation.
[0079] The working principle of the present utility model is as follows:
[0080] In use, the temperature inside the housing is measured by the temperature probe 2 to obtain the actual temperature value T. Generally, the temperature of the copper sulfate reference electrode is regarded as a standard zero point at 25°C. V (corrected potential amount) = {T - 25} * 0.9, and the unit of the corrected potential amount V is millivolt. The measured potential is directly added to the corrected potential to obtain the temperature-corrected potential of the object to be measured.
[0081] Based on the above scheme, the copper sulfate and copper electrode contained in the cylinder 3 react to form a stable electric potential, providing a reference potential. There is a deviation between the actual operating temperature of the reference electrode and the standard operating condition of 25°C. The potential drift amount is given by measuring the actual operating temperature of the reference electrode, and the potential correction amount is displayed on the display screen at the top of the electrode to assist in obtaining the accurate potential of the object to be measured.
[0082] During application, the ambient temperature is measured, and the potential deviation caused by the temperature is calculated accordingly and directly displayed on the top of the electrode cap. While realizing portable use, the potential deviation caused by the temperature is given, and the potential deviation caused by the temperature is corrected without changing the convenient use, making the measured value closer to the true value.
[0083] Taking the buried metal pipeline 9 as an example of the object to be measured, both the present invention and the object to be measured are connected through the soil. The potential is tested by a potential measuring device such as a multimeter 8. The pipeline potential is obtained by measuring the object to be measured and the reference electrode 10 of the present invention, and the measured potential is added to the corrected potential displayed by the reference electrode to obtain the potential value under the standard operating condition.
[0084] It should be noted that all the electronic components involved in the present invention adopt existing technologies, and the above-mentioned components are electrically connected to the controller (i.e., the data processing circuit), and the control circuit between the controller and each component is an existing technology.
[0085] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0086] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
[0087] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.
Claims
1. A temperature-corrected self-displaying copper sulfate portable reference electrode, characterized in that: The invention comprises a shell, an electrode rod (1) and a temperature probe (2); the shell is used to contain a copper sulfate solution; the electrode rod (1) is vertically fixedly installed in the shell, and its lower end extends to the lower part of the shell; the temperature probe (2) is fixedly installed on the top wall of the shell; the shell comprises a barrel (3) and an electrode cap (4); the upper end of the barrel (3) is open; the electrode cap (4) is fixedly installed on the upper end of the barrel (3), and the electrode rod (1) and the temperature probe (2) are respectively fixedly installed on the electrode cap (4).
2. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 1, characterized in that: The cylinder (3) is in a cylindrical structure.
3. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 1, characterized in that: A through hole is provided at the lower end of the cylinder (3), and a porous permeable membrane (5) is fixedly mounted at the through hole.
4. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 3, characterized in that: The through hole is a circular hole.
5. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 1, characterized in that: It also comprises a data processing circuit (6), wherein the data processing circuit (6) is fixedly mounted on the electrode cap (4).
6. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 5, characterized in that: The electrode cap (4) is provided with a mounting cavity, the data processing circuit (6) is fixedly mounted in the mounting cavity, and the temperature probe (2) is communicatively connected to the data processing circuit (6).
7. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 6, characterized in that: The installation cavity is a circular cavity.
8. The temperature-corrected self-displaying copper sulfate portable reference electrode according to claim 6, characterized in that: The upper end of the electrode cap (4) is provided with a mounting hole communicating with the mounting cavity, a display screen (7) is fixedly mounted at the mounting hole, and the display screen (7) is communicatively connected with the data processing circuit (6).
9. The temperature-corrected self-manifesting copper sulfate portable reference electrode according to claim 8, characterized in that: The mounting hole is a circular hole, and the display screen (7) is a circular display screen.