Ceramic sand core / open type double-control liquid complex industrial pH electrode
By employing a dual-control liquid network structure with ceramic sand core and open liquid network section, combined with high-temperature corrosion-resistant materials and a non-clogging design, the problem of electrode clogging and corrosion under high temperature and high pressure environments is solved, achieving high accuracy and long lifespan of the electrode, which is suitable for pH measurement of high temperature, high pressure and corrosive water samples.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-04-07
AI Technical Summary
Under high temperature and high pressure, the liquid network section of existing industrial pH electrodes is prone to voids, blockages, or corrosion, leading to inaccurate measurements. Furthermore, the liquid network section of ceramic sand cores may cause reverse osmosis contamination of the reference electrolyte by the tested solution.
The dual-control liquid network structure, which employs a ceramic sand core and an open liquid network section, combined with high-temperature corrosion-resistant materials and a non-clogging design, achieves pressure dispersion and balance, preventing clogging and corrosion. It uses a silver/silver chloride reference system and a silver ion trap to prevent silver ion diffusion, and uses a gel or high-temperature solid polymer reference electrolyte to maintain stability.
It improves the measurement accuracy and service life of electrodes under high temperature and high pressure environments, solves the problems of blockage and corrosion in the liquid network section, and is suitable for high temperature, high pressure and corrosive water samples, thus broadening the scope of application.
Smart Images

Figure CN224095763U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to an industrial pH electrode, in particular to a ceramic sand core / open type double control liquid junction industrial pH electrode. BACKGROUND
[0002] Some pH measurements in industrial production processes under high temperature and high pressure environment, the electrode uses open type liquid junction, high temperature and high pressure can cause the electrode to appear cavity in the place of liquid junction, and the liquid junction of ceramic sand core can be polluted by the reverse osmosis of the measured solution.
[0003] For some water samples with larger viscosity, granularity and corrosion, if the liquid junction of ceramic sand core is selected, blockage can occur, causing inaccurate measurement. For open type liquid junction, some corrosive water samples can corrode the solid electrolyte at the diaphragm after long time measurement, causing inaccurate measurement. SUMMARY
[0004] In order to solve the above problems, the utility model provides a ceramic sand core / open type double control liquid junction industrial pH electrode, which contains a double control liquid junction structure of ceramic sand core and open type liquid junction, and the open type liquid junction is located at the upper end of the ceramic sand core liquid junction. When measuring in a high temperature and high pressure environment, the electrode can disperse pressure from the double control structure of ceramic sand core and open type liquid junction, maintaining pressure balance. At the same time, the double control liquid junction structure containing ceramic sand core and open type liquid junction solves the problems of liquid junction blockage and corrosion, effectively improving the accuracy of electrode measurement and prolonging the service life of the electrode.
[0005] The utility model is realized through the following technical schemes: a ceramic sand core / open type double control liquid junction industrial pH electrode, which comprises an electrode main body, a reference structure, a reference electrolyte, an open type liquid junction and a ceramic sand core liquid junction. The reference structure is arranged inside the electrode main body and contacts the reference electrolyte.
[0006] The reference electrolyte is filled inside the electrode main body and communicates with the open type liquid junction and the ceramic sand core liquid junction.
[0007] The open type liquid junction is located at the upper end of the ceramic sand core liquid junction.
[0008] The ceramic sand core liquid junction and the open type liquid junction jointly form a double control liquid junction structure, which realizes pressure dispersion and balance under high temperature and high pressure environment, reducing the influence on the reference electrolyte.
[0009] As a preferred technical scheme, the open type liquid junction adopts a non-blocking structure.
[0010] As a preferred technical solution, the liquid coating section of the ceramic sand core is made of a high-temperature corrosion-resistant material.
[0011] As a preferred technical solution, the reference structure includes a silver / silver chloride reference system and is provided with a silver ion trap.
[0012] As a preferred technical solution, the reference electrolyte is a gel or a high-temperature solid polymer.
[0013] As a preferred technical solution, a sealing ring is provided on the outside of the electrode body.
[0014] As a preferred technical solution, the mounting end of the electrode body is provided with electrode threads and a mounting interface to adapt to different installation requirements.
[0015] As a preferred technical solution, the electrode body is provided with a cylindrical electrode bulb for contacting the solution to be tested to achieve pH measurement.
[0016] The beneficial effects of this invention are: the industrial pH electrode of this invention has a dual liquid network structure, the electrode has a ceramic sand core and an open liquid network dual liquid network structure, in the high temperature and high pressure pH measurement system, the pressure of the measured solution can be balanced through the dual liquid network structure, reducing the influence of high pressure on the electrode reference electrolyte.
[0017] Meanwhile, industrial pH electrodes with a ceramic core and an open liquid network structure can solve both the problem of electrode clogging and the problem of corrosion of the electrode liquid network. This dual liquid network structure can greatly improve the accuracy of measurement and the service life of the electrode. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation
[0020] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0021] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0022] like Figure 1 As shown, this utility model relates to an industrial pH electrode structure with a ceramic core / open dual-control liquid network section for pH measurement in high-temperature and high-pressure environments. The electrode includes an electrode body 9, a reference structure 5, a reference electrolyte 6, an open liquid network section 7, and a ceramic core liquid network section 8. The reference structure 5 is disposed inside the electrode body 9 and is in contact with the reference electrolyte 6.
[0023] The reference electrolyte 6 fills the interior of the electrode body 9 and is connected to the open liquid network section 7 and the ceramic core liquid network section 8. The open liquid network section 7 is located at the upper end of the ceramic core liquid network section 8. The ceramic core liquid network section 8 and the open liquid network section 7 together form a dual-control liquid network structure, which realizes pressure dispersion and balance under high temperature and high pressure environment, so as to reduce the impact on the reference electrolyte 6.
[0024] In the specific implementation process, the open liquid network section 7 adopts a non-clogging structure, which ensures that the liquid network section will not be blocked by suspended particles or viscous substances in the water sample during long-term use, thereby ensuring the long-term stability and reliability of the electrode.
[0025] The ceramic core liquid network section 8 is made of high-temperature corrosion-resistant material, which enables it to maintain strong stability under high temperature and high pressure environment. It will not cause contamination or loss of reference electrolyte 6 due to the reverse osmosis of the test solution, thereby ensuring the accuracy of measurement and the service life of the electrode.
[0026] Reference structure 5 employs a silver / silver chloride reference system, within which a silver ion trap is incorporated. The silver ion trap effectively prevents silver ions from diffusing into the test solution, thereby reducing electrode drift and improving measurement stability and lifespan.
[0027] The reference electrolyte 6 is made of gel or high-temperature solid polymer. These electrolytes maintain stable physicochemical properties under high temperature and high pressure conditions, preventing electrolyte evaporation or loss from affecting the electrode's measurement accuracy. Furthermore, using a solid polymer reference electrolyte 6 can effectively reduce the rate of electrolyte loss from the electrode, improving electrode stability.
[0028] The electrode body 9 is provided with a sealing ring 4 on the outside. The function of the sealing ring 4 is to ensure the sealing of the internal structure of the electrode and prevent external liquids or gases from seeping into the electrode body 9 and affecting the measurement accuracy.
[0029] Meanwhile, the use of sealing ring 4 improves the overall durability of the electrode, enabling it to maintain stable performance even in harsh environments. The mounting end of the electrode body 9 is provided with electrode thread 2 and mounting interface 1, allowing the electrode to adapt to different installation requirements.
[0030] The rational design of the mounting thread 2 ensures that the electrode has good sealing and stability during installation, avoiding problems such as leakage or inaccurate measurement due to improper installation.
[0031] The electrode body 9 has a cylindrical electrode bulb 9 inside, which is in direct contact with the solution to be measured to achieve pH measurement.
[0032] The choice of material for the electrode bulb 9 has a significant impact on the electrode's response speed and measurement accuracy. Therefore, in this embodiment, the electrode bulb 9 is made of highly sensitive glass to ensure that it has a rapid response capability to changes in pH value in the solution and to provide stable and accurate measurement data.
[0033] In high-temperature and high-pressure measurement environments, the pressure of the measured solution may affect the electrode. However, the electrode of this invention, through its dual-control liquid network structure, can effectively disperse and balance the pressure, enabling the electrode to maintain a stable working state even under high-temperature and high-pressure conditions.
[0034] The presence of the open liquid network section 7 makes it less prone to blockage by deposits during the measurement process, while also having good liquid diffusion capabilities, meeting the measurement needs of viscous liquids or samples containing suspended particles.
[0035] The ceramic core liquid network section 8 can still provide stable liquid permeability under high temperature and high pressure environment, while preventing the reference electrolyte 6 from being lost due to the reverse osmosis of the test solution, thus ensuring the long-term stable operation of the electrode.
[0036] The beneficial effects of this invention are that by adopting a dual-control liquid network structure, it solves the problem of unstable measurement caused by blockage or corrosion of the liquid network in traditional industrial pH electrodes under high temperature and high pressure environments. At the same time, it effectively improves pressure balance, reduces the impact on the reference electrolyte 6, and improves the accuracy of measurement and the service life of the electrode.
[0037] Furthermore, the reasonable combination of the open liquid network section 7 and the ceramic sand core liquid network section 8 makes the electrode suitable not only for conventional industrial environments, but also for special environments with high temperature, high pressure and strong corrosiveness, further broadening the application range of the electrode.
[0038] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A ceramic core / open dual-control liquid network industrial pH electrode, comprising an electrode body (9), a reference structure (5), a reference electrolyte (6), an open liquid network (7), and a ceramic core liquid network (8), characterized in that: The reference structure (5) is disposed inside the electrode body (9) and is in contact with the reference electrolyte (6); The reference electrolyte (6) is filled inside the electrode body (9) and is connected to the open liquid network section (7) and the ceramic sand core liquid network section (8); The open liquid network section (7) is located at the upper end of the ceramic sand core liquid network section (8); The ceramic core liquid network section (8) and the open liquid network section (7) together constitute a dual-control liquid network section structure, which realizes pressure dispersion and balance under high temperature and high pressure environment, so as to reduce the impact on the reference electrolyte (6).
2. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The open liquid network section (7) adopts a non-clogging structure.
3. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The ceramic core liquid coating section (8) is made of high-temperature corrosion resistant material.
4. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The reference structure (5) includes a silver / silver chloride reference system and is equipped with a silver ion trap.
5. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The reference electrolyte (6) is a gel or a high-temperature solid polymer.
6. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The electrode body (9) is provided with a sealing ring (4) on the outside.
7. The ceramic core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The electrode body (9) has an electrode thread (2) and an installation interface (1) at its mounting end to accommodate different installation requirements.
8. The ceramic sand core / open-type dual-control liquid winding industrial pH electrode according to claim 1, characterized in that: The electrode body (9) is provided with a cylindrical electrode bulb for contacting the solution to be tested to achieve pH measurement.