A pH electrode protection device for water quality detection

Abstract

The utility model relates to water quality detection technical field discloses a pH electrode protection device for water quality detection, including water pipe, protection shell and baffle, water pipe includes electrode connection pipe department, water inlet pipe department and water outlet pipe department of integral intercommunication, electrode connection pipe department is used for supplying the measurement part of pH electrode to penetrate, water inlet pipe department and water outlet pipe department are all used for connecting pipeline, and the filter screen is equipped in water inlet pipe department, is used for filtering the big granular object in the water body of measurement, protection shell is detachably established on electrode connection pipe department, and the positioning groove is equipped in protection shell, is used for accommodating and positioning the main part of pH electrode, the baffle is fixedly established on protection shell, and is located between water inlet pipe department and the measurement part of pH electrode, and the baffle is uniformly equipped with a plurality of water passing holes, and the water passing hole is used for filtering the small granular object in the water body of measurement, the utility model can solve how to reduce the problem of the friction, scouring and impact effect of high -speed water flow and granular object in pipeline to pH electrode, and protect pH electrode.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically to a pH electrode protection device for water quality testing. Background Technology

[0002] In water quality testing, real-time and accurate measurement of pH values ​​is a crucial step in assessing water quality. As an important indicator of water's acidity or alkalinity, accurate pH measurement is of paramount importance in many fields, including environmental protection, industrial production, agricultural irrigation, and drinking water safety. In practical applications, pH electrodes are often inserted directly into pipes to achieve real-time online monitoring of water quality.

[0003] Currently, most pH electrodes widely used in the market are made of glass, especially their measuring parts. To ensure high sensitivity and the ability to accurately capture minute changes in hydrogen ion concentration in the solution and obtain precise measurement signals, the measuring part of the electrode is usually made of extremely thin glass. While this design effectively improves the electrode's measurement performance, it also brings significant problems.

[0004] When the water flow velocity in the pipe is high, the high-speed flow of water generates strong friction on the measuring head of the pH electrode. This friction not only interferes with the normal ion exchange process between the electrode and the water, causing fluctuations and deviations in the pH signal acquired by the electrode, thus resulting in measurement errors and affecting the accuracy of water quality test results, but also, the water being tested in the pipe is often not pure and may contain particles of various sizes. Driven by the high-speed water flow, these particles will wash over the pH electrode at high speed, potentially forming tiny scratches on the electrode surface, affecting the electrode's response speed and measurement accuracy, and may even break the glass measuring part of the electrode, causing electrode damage and rendering it unable to function properly.

[0005] Given the numerous problems existing in the real-time measurement of pH electrodes in pipelines, it is necessary to develop a pH electrode protection device for water quality testing. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a pH electrode protection device for water quality testing, which can at least solve the technical problem of how to reduce the friction, scouring and impact of high-speed water flow and particulate matter in the pipeline on the pH electrode, thereby protecting the pH electrode.

[0008] (II) Technical Solution

[0009] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a pH electrode protection device for water quality testing, comprising:

[0010] The water inlet pipe includes an integrally connected electrode connector, an inlet pipe, and an outlet pipe. The electrode connector is used for the pH electrode's measuring part to pass through. Both the inlet and outlet pipes are used for connecting pipes. The inlet pipe is equipped with a filter screen, which is used to filter out large particles in the water to be tested.

[0011] The protective shell is detachably mounted on the electrode connector. The protective shell has a positioning groove inside, which is used to accommodate and position the main body of the pH electrode.

[0012] A baffle is fixed on the protective shell and located between the water inlet pipe and the pH electrode measuring part. The baffle is evenly provided with multiple water passage holes, which are used to filter small particles in the water to be tested.

[0013] Further, the aforementioned baffle is arc-shaped, the length of the baffle is not less than the length of the pH electrode extending into the water inlet pipe, the width of the baffle is greater than the width of the measuring part of the pH electrode, and the width of the baffle is less than the inner diameter of the water inlet pipe.

[0014] Furthermore, the aforementioned water passage hole extends obliquely upwards or downwards from the direction of the water inlet pipe.

[0015] Further, the aforementioned protective shell includes a first shell, a second shell, and two elastic members. The two elastic members are respectively disposed inside the first shell and the second shell. The first shell and the second shell are detachably connected to form a positioning groove between the two elastic members.

[0016] Furthermore, the aforementioned protective shell is provided with a first clearance hole for the measuring part of the pH electrode to pass through and a second clearance hole for the wire of the pH electrode to pass through. A sealing ring is provided between the inner wall of the first clearance hole and the measuring part of the pH electrode to seal the gap between the pH electrode and the clearance hole.

[0017] Further, the aforementioned first housing includes a limiting protrusion, and the second housing includes a limiting recess. The limiting protrusion and the limiting recess are inserted into each other. The limiting protrusion is provided with a connecting hole for a screw to pass through, and the limiting recess is provided with a threaded hole coaxial with the connecting hole. The threaded hole is used to engage with the screw thread.

[0018] Furthermore, both the aforementioned first housing and second housing include a semi-circular flange portion. When the first housing and second housing are closed, the two flange portions are spliced ​​together to form a circular flange for connecting the electrode connector portion.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the pH electrode protection device for water quality testing provided by this utility model has the following beneficial effects:

[0021] 1. When using the pH electrode protection device for water quality testing provided by this utility model, the main body of the pH electrode needs to be installed in the positioning groove of the protective shell, and the measuring part of the pH electrode should extend out of the protective shell. Then, the measuring part of the pH electrode and the baffle are inserted together and pass through the electrode connector, so that the baffle is located between the inlet pipe and the measuring part of the pH electrode. Then, the protective shell is installed on the electrode connector. Finally, the inlet and outlet pipes of the receiving pipe are connected to the pipe through which the water to be tested flows. In this way, the water to be tested in the pipe can flow into the receiving pipe from the inlet pipe, so that the pH electrode can detect the pH value of the water to be tested flowing into the receiving pipe in real time. It can be seen that this utility model connects the pH electrode to the pipe through which the water to be tested flows by the receiving pipe and the protective shell to achieve real-time online monitoring of water quality. In this way, when it is necessary to install or remove the pH electrode and the pipe through which the water to be tested flows, the staff only needs to directly install or remove the receiving pipe or the protective shell without directly contacting the electrode, which greatly reduces the risk of damage to the electrode during the installation and removal process.

[0022] 2. This utility model can filter particulate matter in the water to be tested layer by layer through the filter screen and baffle, and can also reduce the flow velocity of the water to be tested in two ways. This significantly reduces the friction, scouring and impact of the high-speed water flow and particulate matter in the pipeline on the pH electrode, effectively protecting the pH electrode, reducing measurement error and ensuring measurement accuracy. Attached Figure Description

[0023] Figure 1 This is a perspective view of the pH electrode protection device for water quality testing in the embodiment;

[0024] Figure 2 This is a cross-sectional view of the pH electrode protection device for water quality testing in the embodiment.

[0025] Icon labels:

[0026] 1. Water inlet pipe; 11. Electrode connector; 12. Inlet pipe; 13. Outlet pipe; 14. Filter screen;

[0027] 2. Protective shell; 21. Positioning groove; 22. First shell; 221. Limiting protrusion; 222. Connecting hole; 23. Second shell; 231. Limiting recess; 232. Threaded hole; 24. Elastic element; 25. First clearance hole; 26. Second clearance hole; 27. Flange;

[0028] 3. Baffle; 31. Water passage hole;

[0029] 4. pH electrode; 41. Measuring part; 42. Main body; 43. Wire;

[0030] 5. Pipes; 6. Sealing rings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This invention provides a pH electrode protection device for water quality testing, which solves the problem of how to reduce the friction, scouring and impact of high-speed water flow and particulate matter in the pipeline 5 on the pH electrode 4, and protect the pH electrode 4.

[0033] See Figure 1 and Figure 2 As shown, Figure 1 This is a perspective view of the pH electrode protection device for water quality testing in the embodiment. Figure 2 The image shows a cross-sectional view of a pH electrode protection device for water quality testing in this embodiment. The pH electrode protection device for water quality testing includes a water inlet pipe 1, a protective shell 2, and a baffle 3.

[0034] The water inlet pipe 1 includes an electrode connector 11, an inlet pipe 12, and an outlet pipe 13, which are integrally connected and interconnected. The electrode connector 11 allows the measuring portion 41 of the pH electrode 4 to pass through. Both the inlet pipe 12 and the outlet pipe 13 are used to connect to the pipe 5. A filter screen 14 is installed inside the inlet pipe 12 via welding or an integral connection. The filter screen 14 is used to filter large particles in the water being tested.

[0035] The protective shell 2 is detachably mounted on the electrode connector 11 by means of screwing or snap-fitting. The protective shell 2 is provided with a positioning groove 21, which is used to accommodate and position the main body 42 of the pH electrode 4.

[0036] The baffle 3 is fixed to the protective shell 2 by welding or integral connection, and is located between the water inlet pipe 12 and the measuring part 41 of the pH electrode 4. Multiple water passage holes 31 are evenly distributed on the baffle 3, which are used to filter small particles in the water to be tested.

[0037] When using the pH electrode protection device for water quality testing according to the above technical solution, the main body 42 of the pH electrode 4 needs to be installed in the positioning groove 21 of the protective shell 2, and the measuring part 41 of the pH electrode 4 needs to extend out of the protective shell 2. Then, the measuring part 41 of the pH electrode 4 and the baffle 3 are inserted together and pass through the electrode connector 11, so that the baffle 3 is located between the inlet pipe 12 and the measuring part 41 of the pH electrode 4, and then the protective shell 2 is installed on the electrode connector 11. Finally, the inlet pipe 12 and the outlet pipe 13 of the water receiving pipe 1 are connected to the flow pipe 5 through which the water to be tested flows. In this way, the water to be tested in the pipe 5 can flow into the water receiving pipe 1 through the inlet pipe 12, so that the pH electrode 4 can detect the pH value of the water to be tested flowing into the water receiving pipe 1 in real time. As can be seen, this utility model connects the pH electrode 4 to the flow pipe 5 of the water to be tested through the water inlet pipe 1 and the protective shell 2 to achieve real-time online monitoring of water quality. In this way, when it is necessary to install or remove the pH electrode 4 and the flow pipe 5 of the water to be tested, the staff only needs to directly install or remove the water inlet pipe 1 or the protective shell 2 without directly contacting the electrode, which greatly reduces the risk of damage to the electrode during the installation and removal process.

[0038] In addition, this utility model can filter particulate matter in the water to be tested layer by layer through the filter screen 14 and the baffle 3, and can also reduce the flow velocity of the water to be tested in two ways, thereby significantly reducing the friction, scouring and impact of high-speed water flow and particulate matter on the pH electrode 4, effectively protecting the pH electrode 4, reducing measurement error and ensuring measurement accuracy.

[0039] The aforementioned water inlet pipe 1 is similar to a tee, facilitating the quick connection and disconnection of the pH electrode 4 from the pipe 5. If a tee is already installed on the pipe 5 through which the water to be tested flows, it can replace the water inlet pipe 1. Thus, when using this invention, the protective shell 2 can be directly installed on the tee of the pipe 5, eliminating the need for the protective shell 2 and the electrode connector 11. This provides the invention with multiple usage options, making it more flexible and convenient. Furthermore, the connection portion of the aforementioned pipe 5 can be connected to the pipe 5 through which the water to be tested flows via a threaded or flanged structure.

[0040] The above-mentioned evenly distributed multiple water passage holes 31 not only ensure the normal passage of water, allowing the water to be tested to come into timely contact with the measuring part 41 of the pH electrode 4, ensuring timely and effective measurement, but also filter out small particles in the water to be tested, further reducing the flow rate of the water to be tested, so that the water to be tested can fully contact the measuring part 41 of the pH electrode 4, and achieve accurate pH measurement.

[0041] The shape and size of the positioning groove 21 are consistent with the main body 42 of the pH electrode 4, so as to achieve the positioning function of the pH electrode 4.

[0042] See Figure 2As shown, in one embodiment of the baffle 3, the baffle 3 is arc-shaped. The length of the baffle 3 is not less than the length of the pH electrode 4 extending into the water inlet pipe 1. The width of the baffle 3 is greater than the width of the measuring portion 41 of the pH electrode 4, and the width of the baffle 3 is less than the inner diameter of the water inlet pipe 12. Thus, the arc-shaped baffle 3 design can better guide the water to be tested and reduce the impact force of the water to be tested; and the size design of the baffle 3 can fully protect the electrode measuring portion 41 without excessively obstructing the water flow, ensuring that the water to be tested can smoothly enter the water inlet pipe 1, and flow out smoothly after contacting the electrode, preventing stagnant water from forming in the water inlet pipe 1, which would prevent the pH electrode 4 from timely and effectively measuring the pH value of the water flow in the pipe 5.

[0043] See Figure 2 As shown, based on the above embodiment, the water passage 31 extends obliquely upwards or downwards from the water inlet pipe 12. This oblique design of the water passage 31 alters the direction of water flow, allowing the water to enter the water inlet pipe 1 more gently and contact the measuring portion 41 of the pH electrode 4. This further reduces the impact force of the water flow on the measuring portion 41 of the pH electrode 4. Simultaneously, it creates a certain degree of disturbance within the water inlet pipe 1, promoting full contact between the water to be tested and the measuring portion 41 of the pH electrode 4, thereby improving measurement accuracy.

[0044] See Figure 1 and Figure 2 As shown, in one embodiment of the protective shell 2, the protective shell 2 includes a first shell 22, a second shell 23, and two elastic members 24. The two elastic members 24 are respectively located inside the first shell 22 and the second shell 23. The first shell 22 and the second shell 23 are detachably connected and closed to form a positioning groove 21 between the two elastic members 24. Thus, the main body 42 of the pH electrode 4 can be directly placed onto the elastic member 24 inside the first shell 22 or the second shell 23, and then the first shell 22 and the second shell 23 are detachably connected and closed to achieve the installation of the pH electrode 4 in this utility model; conversely, the pH electrode 4 can be removed by disassembling the first shell 22 and the second shell 23 to achieve the disassembly of the pH electrode 4 in this utility model. This method of installing and removing the pH electrode 4 eliminates the need to untangle the wire 43 of the pH electrode 4 to avoid tangling, as is required by the rotation fixing method, making it easy to quickly install and remove the pH electrode 4, and thus facilitating the maintenance and replacement of the pH electrode 4. In addition, the elastic element 24 of this invention acts as a buffer to reduce the impact of external vibrations on the pH electrode 4, thereby improving the stability and measurement accuracy of the pH electrode 4.

[0045] The aforementioned elastic element 24 can be made of elastic materials with cushioning effects, such as sponge.

[0046] See Figure 1 and Figure 2As shown, based on the above embodiment, the protective shell 2 has a first clearance hole 25 and a second clearance hole 26. The first clearance hole 25 is used for the measuring part 41 of the pH electrode 4 to pass through. The second clearance hole 26 is used for the wire 43 of the pH electrode 4 to pass through. A sealing ring 6 is installed between the inner wall of the first clearance hole 25 and the measuring part 41 of the pH electrode 4. The sealing ring 6 is used to seal the gap between the pH electrode 4 and the clearance hole. In this way, the arrangement of the first clearance hole 25 and the second clearance hole 26 facilitates the passage of the measuring part 41 of the pH electrode 4 and the wire 43 through the protective shell 2; while the sealing ring 6 can seal the gap between the pH electrode 4 and the clearance hole, preventing water in the water inlet pipe 1 from seeping into the protective shell 2 through the gap, thereby protecting the main body 42 of the pH electrode 4 from water erosion and damage.

[0047] See Figure 1 As shown, in one embodiment of the first housing 22 and the second housing 23, the first housing 22 includes a limiting protrusion 221, and the second housing 23 includes a limiting recess 231. The limiting protrusion 221 and the limiting recess 231 are interlocked. The limiting protrusion 221 has a connecting hole 222 for a screw to pass through. The limiting recess 231 has a threaded hole 232 coaxially distributed with the connecting hole 222. The threaded hole 232 is used for threaded engagement with a screw. Thus, after the limiting protrusion 221 and the limiting recess 231 are interlocked, the tail of the screw is passed through the connecting hole 222 and continuously screwed into the threaded hole 232 until the head of the screw abuts against the limiting protrusion 221, thereby achieving a detachable connection between the first housing 22 and the second housing 23. This connection method is simple in structure, robust and reliable, and can ensure the stability of the first housing 22 and the second housing 23 after they are closed, preventing the protective shell 2 from loosening during use and ensuring effective protection of the pH electrode 4.

[0048] See Figure 1 and Figure 2 As shown, based on the above embodiment, both the first housing 22 and the second housing 23 include a semi-circular flange 27. When the first housing 22 and the second housing 23 are closed, the two flanges 27 are joined to form a circular flange for connecting the electrode connector 11. Thus, the protective housing 2 and the electrode connector 11 can be detachably connected via the flange. This detachable connection method is simple and easy to implement, and the connection is firm, ensuring the sealing and stability of the entire protective device and ensuring the smooth operation of water quality testing.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pH electrode protection device for water quality testing, characterized in that, include: The water inlet pipe includes an integrally connected electrode connector, an inlet pipe, and an outlet pipe. The electrode connector is used for the pH electrode's measuring part to pass through. Both the inlet pipe and the outlet pipe are used for connecting to other pipes. The inlet pipe is equipped with a filter screen, which is used to filter out large particles in the water to be tested. A protective shell is detachably mounted on the electrode connector. The protective shell has a positioning groove inside, which is used to accommodate and position the main body of the pH electrode. A baffle is fixed on the protective shell and located between the water inlet pipe and the pH electrode measuring part. The baffle is provided with a plurality of water passage holes, which are used to filter small particles in the water to be tested.

2. The pH electrode protection device for water quality testing according to claim 1, characterized in that, The baffle is arc-shaped, and its length is not less than the length of the pH electrode extending into the water inlet pipe. The width of the baffle is greater than the width of the measuring part of the pH electrode, and the width of the baffle is less than the inner diameter of the water inlet pipe.

3. The pH electrode protection device for water quality testing according to claim 2, characterized in that, The water passage hole extends obliquely upward or downward from the direction of the water inlet pipe.

4. The pH electrode protection device for water quality testing according to any one of claims 1-3, characterized in that, The protective shell includes a first shell, a second shell, and two elastic elements. The two elastic elements are respectively disposed inside the first shell and the second shell. The first shell and the second shell are detachably connected to form the positioning groove between the two elastic elements.

5. The pH electrode protection device for water quality testing according to claim 4, characterized in that, The protective shell is provided with a first clearance hole for the measuring part of the pH electrode to pass through and a second clearance hole for the wire of the pH electrode to pass through. A sealing ring is provided between the inner wall of the first clearance hole and the measuring part of the pH electrode, and the sealing ring is used to seal the gap between the pH electrode and the clearance hole.

6. The pH electrode protection device for water quality testing according to claim 5, characterized in that, The first housing includes a limiting protrusion, and the second housing includes a limiting recess. The limiting protrusion and the limiting recess are inserted into each other. The limiting protrusion is provided with a connecting hole for a screw to pass through, and the limiting recess is provided with a threaded hole coaxial with the connecting hole. The threaded hole is used to engage with the screw.

7. The pH electrode protection device for water quality testing according to claim 5 or 6, characterized in that, Both the first housing and the second housing include a semi-circular flange portion. When the first housing and the second housing are closed, the two flange portions are spliced ​​together to form a circular flange for connecting the electrode connector portion.

Images