PH electrode flow cell
By improving the flow cell structure, the pH electrode is ensured to be in full contact with the sample water and to be detected in real time, which solves the problems of large measurement error and limited applicability, and realizes the use of pH electrodes in a high-efficiency and economical way.
Patent Information
- Application Number
- CN202520062849.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-10
AI Technical Summary
The existing flow cell structure prevents the pH electrode from making sufficient contact with the sample water, resulting in large measurement errors, limited applicability, inability to visually observe the sample water condition, and easy damage.
A pH electrode flow cell was designed, comprising a cup cover, a cell cover, a fixing bend plate, fixing bolts, a bracket fixing plate, a detection component, and a connecting component. It is made of transparent material and has a dual electrode mounting port to ensure full contact of the sample water and real-time detection, while protecting the electrodes from oxidation.
It improves pH measurement accuracy, extends electrode life, reduces maintenance costs, enhances device applicability and maintenance convenience, and improves work efficiency.
Smart Images
Figure CN223784250U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrode flow cell technology, specifically a pH electrode flow cell. Background Technology
[0002] Existing flow-through cells have an outlet located below the inlet. This design, when sample water supply is insufficient, prevents the pH electrode from making adequate contact with the sample water, leading to significant measurement errors. Furthermore, prolonged insufficient sample water supply can cause the pH electrode to be exposed to air for extended periods, resulting in damage. Additionally, existing flow-through cells have only one electrode mounting port, limiting their applicability to pH electrodes with integrated temperature probes. Moreover, the use of opaque materials in existing flow-through cells prevents operators from directly observing the sample water flow. Therefore, those skilled in the art have developed a pH electrode flow-through cell to address the problems described in the background section. Utility Model Content
[0003] The purpose of this invention is to provide a pH electrode flow cell to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A pH electrode flow cell includes a cup cover with a cell cover snapped onto its upper end. A fixing plate is fixedly connected to the upper surface of the cell cover, and fixing bolts are provided on the fixing plate. The cell cover is fixed to an external wall by the fixing plate and fixing bolts. A support plate is fixedly connected to the upper surface of the cell cover, and a reference liquid support is provided on the support plate. A detection component and a connection component are provided on the cell cover, and the connection component is used in conjunction with the detection component.
[0006] Furthermore, the connecting assembly includes a retaining sleeve, a locking cap, a first O-ring, an inlet pipe, a drain pipe, a drain connection port, a supply pipe, and a supply connection port. The first O-ring is snapped between the cup cover and the pool cover. One end of the pool cover is fixedly connected to the drain connection port, and the drain connection port is in communication with the internal space of the cup cover.
[0007] Furthermore, a locking cap is threaded onto the surface of the drain connection port, and a sleeve is provided between the locking cap and the drain connection port. The drain connection port is fixedly connected to the drain pipe through the locking cap.
[0008] Furthermore, the other end of the pool cover is fixedly connected to a liquid supply port, one end of which is fixedly connected to an inlet pipe. The inlet pipe is placed inside the cup cover, and the liquid supply port is interconnected with the cup cover through the inlet pipe. The surface of the liquid supply port is fixedly connected to the liquid supply pipe through another locking cap.
[0009] Furthermore, the detection assembly includes a fixing tube, a second O-ring, an electrode clamping block, an electrode fixing sleeve, a composite electrode, a temperature electrode, a tightening ring, and a third O-ring. The upper end of the pool cover is fixedly connected to the fixing tube via an internal thread, and the lower end of the fixing tube is fixedly connected to the tightening ring.
[0010] Furthermore, a third O-ring is tightly attached to the lower surface of the locking ring, and the lower end of the third O-ring is tightly attached to the pool cover. A composite electrode is inserted into the fixing tube, and the lower end of the composite electrode is placed inside the cup cover. A second O-ring is snapped between the composite electrode and the fixing tube.
[0011] Furthermore, another fixed tube is fixedly connected to the upper end of the pool cover, a temperature electrode is inserted into the fixed tube, an electrode clamping block is fixedly connected to the upper end of the temperature electrode, an electrode fixing sleeve is sleeved on the surface of the temperature electrode, and the electrode fixing sleeve is fixedly connected to the electrode clamping block.
[0012] By adopting the above technical solution
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. This utility model can better ensure the accuracy of pH measurement, which can directly improve the work effect and efficiency of the user unit; this utility model can better ensure the service life of pH electrode, and since the purchase cost of pH electrode is high, it can directly save the user unit a lot of maintenance costs.
[0015] 2. At the same time, the better applicability of this device can reduce the selection work and spare parts storage of users, thereby indirectly saving costs for users;
[0016] 3. Furthermore, this device has a more transparent structure, making it easier to use and maintain, which can improve the work efficiency of the user and thus indirectly save costs for the user. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a frontal cross-sectional structure of a pH electrode flow cell;
[0018] Figure 2 This is a top view of a pH electrode flow cell.
[0019] Figure 3 In this utility model Figure 1 A magnified schematic diagram of the structure at point A;
[0020] In the diagram: 1. Cup cover; 2. Sleeve; 3. Locking cap; 4. First O-ring; 5. Pool cover; 6. Fixing tube; 7. Second O-ring; 8. Electrode clip; 9. Electrode fixing sleeve; 10. Composite electrode; 11. Inlet pipe; 12. Temperature electrode; 13. Drain pipe; 14. Drain connection port; 15. Fixing bolt; 16. Supply pipe; 17. Fixing bend plate; 18. Supply connection port; 19. Support fixing plate; 20. Locking ring; 21. Third O-ring; 22. Reference liquid support. Detailed Implementation
[0021] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the present utility model is further described below in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] Please see Figures 1-3 This utility model provides an embodiment of a pH electrode flow cell, including a cup cover 1. A cell cover 5 is snapped onto the upper end of the cup cover 1. A fixing bend plate 17 is fixedly connected to the upper surface of the cell cover 5. A fixing bolt 15 is provided on the fixing bend plate 17. The cell cover 5 is fixed to the external wall by the fixing bend plate 17 and the fixing bolt 15. A bracket fixing plate 19 is fixedly connected to the upper surface of the cell cover 5. A reference liquid bracket 22 is provided on the bracket fixing plate 19. A detection component and a connection component are provided on the cell cover 5. The connection component works in conjunction with the detection component. The connection component can connect the device to the external sample water flow pipe, thereby providing sample water to the detection component so that it can be better encased in the sample water for detection.
[0023] In this embodiment, the connecting assembly includes a sleeve 2, a locking cap 3, a first O-ring 4, an inlet pipe 11, a drain pipe 13, a drain connection port 14, a supply pipe 16, and a supply connection port 18. The first O-ring 4 is snapped between the cup cover 1 and the pool cover 5. One end of the pool cover 5 is fixedly connected to the drain connection port 14, and the drain connection port 14 communicates with the internal space of the cup cover 1. The surface of the drain connection port 14 is threaded with the locking cap 3, and a sleeve 2 is provided between the locking cap 3 and the drain connection port 14. The drain connection port 14 is fixedly connected to the drain pipe 13 via the locking cap 3. The other end of the pool cover 5 is fixedly connected to the supply connection port 18, and one end of the supply connection port 18 is fixedly connected to the inlet pipe 11, which is placed inside the cup cover 1. Furthermore, the liquid supply connection port 18 is interconnected with the cup cover 1 through the liquid inlet pipe 11. The liquid supply pipe 16 is fixedly connected to the surface of the liquid supply connection port 18 through another locking cap 3. The drain pipe 13 and the drain connection port 14 can be interconnected through the locking cap 3, and the liquid supply pipe 16 and the liquid supply connection port 18 can be interconnected at the same time. After the liquid supply pipe 16 supplies water, the sample water can be sent into the cup cover 1 through the liquid inlet pipe 11 and completely fill the cup cover 1. After the cup cover 1 is filled, the overflowing sample water can be drained into the drain pipe 13 through the drain connection port 14, thereby allowing the water in the cup cover 1 to circulate. The liquid outlet of the liquid inlet pipe 11 is located at the bottom of the cup cover 1, which allows the sample water to circulate from bottom to top when entering the cup cover 1, thereby realizing the replacement of old and new samples and allowing the sample water to completely cover the detection component.
[0024] In this embodiment, the detection assembly includes a fixed tube 6, a second O-ring 7, an electrode clamping block 8, an electrode fixing sleeve 9, a composite electrode 10, a temperature electrode 12, a locking ring 20, and a third O-ring 21. The upper end of the pool cover 5 is fixedly connected to the fixed tube 6 via an internal thread. The lower end of the fixed tube 6 is fixedly connected to the locking ring 20, with the lower surface of the locking ring 20 tightly abutting against the third O-ring 21, and the lower end of the third O-ring 21 tightly abutting against the pool cover 5. The composite electrode 10 is inserted into the fixed tube 6, with its lower end placed inside the cup cover 1. The second O-ring 7 is clamped between the composite electrode 10 and the fixed tube 6. Another fixed tube 6 is fixedly connected to the upper end of the pool cover 5, and a temperature electrode 12 is inserted into the fixed tube 6. The temperature electrode 12 is fixedly connected to an electrode clamping block 8 at its upper end. An electrode fixing sleeve 9 is fitted onto the surface of the temperature electrode 12 and is fixedly connected to the electrode clamping block 8. The composite electrode 10 can be inserted into the pool cover 5 through the fixing tube 6 and placed inside the cup cover 1. After the sample water is sent into the cup cover 1 by the connecting assembly, the detection part of the composite electrode 10 can be completely submerged, enabling real-time detection. At the same time, when there is no sample water flow, a certain amount of sample water will remain inside the cup cover 1 to protect the composite electrode 10 from oxidation due to exposure to air. The temperature electrode 12 is inserted into the pool cover 5 through another fixing tube 6, and the sample water can also be detected in real time in the same way.
[0025] After water is supplied through the supply pipe 16, the sample water enters the cup 1 through the inlet pipe 11. The outlet of the inlet pipe 11 is located at the bottom of the cup 1, so that the sample water flows from bottom to top when entering the cup 1, realizing the replacement of old and new water. When the cup 1 is completely filled with sample water, the overflowing sample water is discharged into the drain pipe 13 through the drain connection port 14, so that the water in the cup 1 can circulate. The composite electrode 10 in the detection component is inserted into the pool cover 5 through the fixing pipe 6, and its lower end is placed inside the cup 1. After the connecting component sends the sample water into the cup 1, the detection part of the composite electrode 10 is submerged by the sample water, and can be detected in real time. At the same time, the temperature electrode 12 is inserted into the pool cover 5 through another fixing pipe 6, and can also detect the sample water in real time. When there is no sample water flowing, a certain amount of sample water will remain inside the cup 1 to protect the composite electrode 10 from oxidation caused by exposure to air.
[0026] This invention can better guarantee the accuracy of pH measurement, directly improving the work effect and efficiency of the user unit; it can also better guarantee the service life of the pH electrode, which, due to its high purchase cost, directly saves the user unit a significant amount of maintenance costs; at the same time, the device's better applicability reduces the user unit's selection work and the types of spare parts to store, thus indirectly saving costs; furthermore, the device has a more transparent structure, making it easier to use and maintain, improving the user unit's work efficiency and indirectly saving costs.
[0027] This specification describes embodiments, but not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. 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.
Claims
1. A pH electrode flow cell, comprising a cup (1), characterized in that, The upper end of the cup cover (1) is snapped with a pool cover (5). A fixing bend plate (17) is fixedly connected to the upper surface of the pool cover (5). A fixing bolt (15) is provided on the fixing bend plate (17). The pool cover (5) is fixed to the external wall by the fixing bend plate (17) and the fixing bolt (15). A bracket fixing plate (19) is fixedly connected to the upper surface of the pool cover (5). A reference liquid bracket (22) is provided on the bracket fixing plate (19). A detection component and a connecting component are provided on the pool cover (5). The connecting component and the detection component are used together.
2. The pH electrode flow cell according to claim 1, characterized in that, The connecting components include a sleeve (2), a locking cap (3), a first O-ring (4), an inlet pipe (11), a drain pipe (13), a drain connection port (14), a supply pipe (16), and a supply connection port (18). The first O-ring (4) is snapped between the cup cover (1) and the pool cover (5). One end of the pool cover (5) is fixedly connected to the drain connection port (14), and the drain connection port (14) is in communication with the internal space of the cup cover (1).
3. A pH electrode flow cell according to claim 2, characterized in that, The drain connection port (14) is threaded with a locking cap (3), and a sleeve (2) is provided between the locking cap (3) and the drain connection port (14). The drain connection port (14) is fixedly connected to the drain pipe (13) through the locking cap (3).
4. A pH electrode flow cell according to claim 3, characterized in that, The other end of the pool cover (5) is fixedly connected to a liquid supply port (18), and one end of the liquid supply port (18) is fixedly connected to an inlet pipe (11). The inlet pipe (11) is placed inside the cup cover (1), and the liquid supply port (18) is connected to the cup cover (1) through the inlet pipe (11). The surface of the liquid supply port (18) is fixedly connected to a liquid supply pipe (16) through another locking cap (3).
5. A pH electrode flow cell according to claim 4, characterized in that, The detection assembly includes a fixed tube (6), a second O-ring (7), an electrode snap block (8), an electrode fixing sleeve (9), a composite electrode (10), a temperature electrode (12), a tightening ring (20), and a third O-ring (21). The upper end of the pool cover (5) is fixedly connected to the fixed tube (6) by an internal thread, and the lower end of the fixed tube (6) is fixedly connected to the tightening ring (20).
6. A pH electrode flow cell according to claim 5, characterized in that, The lower surface of the locking ring (20) is tightly attached to the third O-ring (21), and the lower end of the third O-ring (21) is tightly attached to the pool cover (5). A composite electrode (10) is inserted into the fixing tube (6), and the lower end of the composite electrode (10) is placed inside the cup cover (1). A second O-ring (7) is snapped between the composite electrode (10) and the fixing tube (6).
7. A pH electrode flow cell according to claim 6, characterized in that, The upper end of the pool cover (5) is fixedly connected to another fixed tube (6), a temperature electrode (12) is inserted into the fixed tube (6), an electrode clamping block (8) is fixedly connected to the upper end of the temperature electrode (12), an electrode fixing sleeve (9) is sleeved on the surface of the temperature electrode (12), and the electrode fixing sleeve (9) is fixedly connected to the electrode clamping block (8).