A ph electrode measuring device

Abstract

This utility model relates to the field of electrode measurement and discloses a pH electrode measuring device. The device includes a detection tube, the middle of which is cylindrical. An inner tube 1 and an inner tube 2 are fixedly connected between the inner top and bottom walls of the middle section of the detection tube. The inner tube 2 is located inside the inner tube 1. An opening 1 and an opening 4 are respectively opened on the bottom left and top right sides of the outer wall of the inner tube 1. An opening 2 and an opening 3 are respectively opened on the top left and bottom right sides of the outer wall of the inner tube 2. A fixed tube is fixedly connected to the top middle of the detection tube, penetrating vertically through the top outer wall of the detection tube. The fixed tube is located inside the inner tube 2. A threaded tube is threadedly connected to the fixed tube, extending vertically out of the fixed tube. A pH electrode is inserted into the threaded tube, and a sealing tube is fitted onto the top of the outer wall of the pH electrode. The openings 1, 2, 3, and 4 form a meandering flow channel, reducing the water flow velocity to a safe range and preventing high-speed water flow or particles from impacting the pH electrode.

Description

Technical Field

[0001] This utility model relates to the field of electrode measurement, specifically a pH electrode measuring device. Background Technology

[0002] A pH electrode, also known as a pH probe or pH sensor, is the part of a pH meter that comes into contact with the substance being measured. It's a device that characterizes pH by measuring the electrode potential. Current pH electrode measuring devices cannot effectively filter the liquid being measured; contamination of the electrode affects measurement accuracy. pH electrodes cannot withstand high-speed water flow, which can damage them. Replacing a pH electrode requires care, as it is easily damaged. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a pH electrode measuring device.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A pH electrode measuring device includes a detection tube, the middle of which is cylindrical, with a diameter at the middle portion larger than the diameters at the sides. Two inner tubes are fixedly connected between the top and bottom walls of the middle portion of the detection tube, respectively. The second inner tube is located inside the first inner tube, and a gap exists between the second and the first inner tube. A gap also exists between the first inner tube and the middle inner wall of the detection tube, forming a flow channel. An opening (first) and an opening (fourth) are respectively formed on the bottom left and top right sides of the outer wall of the first inner tube. An opening (second) and an opening (third) are respectively formed on the top left and bottom right sides of the outer wall of the second inner tube. A fixed tube is fixedly connected to the top middle portion of the detection tube, penetrating vertically through the top outer wall of the detection tube. The part is located inside the inner tube two. The fixed tube has a threaded tube inside. The fixed tube and the threaded tube are threadedly connected. The upper and lower ends of the threaded tube pass through the upper and lower ends of the fixed tube. The PH electrode is inserted into the threaded tube. The top of the outer wall of the PH electrode is fitted with a sealing tube. The inner diameter of the upper part of the inner wall of the threaded tube is larger than the inner diameter of the lower part. The upper part of the inner wall of the threaded tube has a sealing tube. There is a sealing tube between the top of the outer wall of the PH electrode and the upper part of the inner wall of the threaded tube. The sealing tube fits tightly with the PH electrode and the threaded tube. The bottom end of the PH electrode extends to the bottom of the inner side of the inner tube two. The top outer wall of the threaded tube is fixedly fitted with a square plate. The left end of the detection tube is fixedly connected to the filter bucket. The top left side of the outer wall of the filter bucket is fixedly connected to the water inlet pipe. The right end of the detection tube is fixedly connected to the water outlet pipe.

[0006] The bottom right side of the outer wall of the filter barrel is connected to the detection tube. The filter barrel is set vertically, the detection tube is set horizontally, and the inlet pipe is set horizontally. The top of the filter barrel is open and fixedly connected to the top cover. The top of the filter barrel is fixedly connected to the top cover by bolts. The bolts pass through the edge of the top cover and enter the inside of the filter barrel's tube wall. The bolts are slidably connected to the edge of the top cover and threadedly connected to the inside of the filter barrel's tube wall. A limiting ring is fixedly connected to the inner wall of the filter barrel. The limiting ring is located below the inlet pipe. The limiting ring contains a filter cylinder. The top outer edge of the filter cylinder abuts against the top of the limiting ring. Several mounting bolts are inserted into the top outer edge of the filter cylinder. The mounting bolts are evenly distributed and threadedly connected to the limiting ring.

[0007] The beneficial effects of this utility model are:

[0008] The present invention has four openings forming a meandering flow channel, which can reduce the water flow rate to a safe range. The filter cartridge filters out particulate matter and other pollutants, avoids high-speed water flow from impacting the pH electrode and the pollutant pH electrode, improves the stability of electrode measurement in a low-speed environment, and can prevent damage to the pH electrode.

[0009] The combination of a fixed tube and a threaded tube replaces rigid insertion and removal, and the sealing tube buffers mechanical stress, reducing the risk of pH electrode damage during installation and disassembly. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model rotated 90 degrees clockwise;

[0011] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0012] Figure 3 This is a top sectional view of the present invention.

[0013] The reference numerals in all the attached drawings are as follows: 1. Detection tube; 2. Inner tube one; 3. Inner tube two; 4. Opening one; 5. Opening two; 6. Opening three; 7. Opening four; 8. Fixed tube; 9. Threaded tube; 10. Sealing tube; 11. pH electrode; 12. Square plate; 13. Filter barrel; 14. Top cover; 15. Inlet pipe; 16. Limiting ring; 17. Filter cartridge; 18. Mounting bolt; 19. Outlet pipe; 20. Bolt; 22. Flow channel. Detailed Implementation

[0014] like Figure 1-3As shown: A pH electrode measuring device includes a detection tube 1, the middle part of which is cylindrical, and the diameter of the middle part of the detection tube 1 is larger than the diameters of the two sides of the detection tube 1; an inner tube 2 and an inner tube 3 are fixedly connected between the inner top wall and the inner bottom wall of the middle part of the detection tube 1, respectively. The inner tube 3 is located inside the inner tube 2, and there is a gap between the inner tube 3 and the inner tube 2. There is also a gap between the inner tube 2 and the middle inner wall of the detection tube 1. The gap between the inner tube 2 and the middle inner wall of the detection tube 1 forms a flow channel 22. An opening 4 and an opening 7 are respectively opened on the bottom left side and the top right side of the outer wall of the inner tube 2. An opening 5 and an opening 6 are respectively opened on the top left side and the bottom right side of the outer wall of the inner tube 3. A fixed tube 8 is fixedly connected to the top middle part of the detection tube 1. The fixed tube 8 penetrates the top outer wall of the detection tube 1 vertically, and the lower part of the fixed tube 8 is located within the inner tube 3. Inside the fixed tube 8, there is a threaded tube 9. The fixed tube 8 and the threaded tube 9 are threadedly connected. The upper and lower ends of the threaded tube 9 pass through the upper and lower ends of the fixed tube 8. The PH electrode 11 is inserted into the threaded tube 9. The top of the outer wall of the PH electrode 11 is fitted with a sealing tube 10. The inner diameter of the upper part of the inner wall of the threaded tube 9 is larger than the inner diameter of the lower part. The upper part of the inner wall of the threaded tube 9 has a sealing tube 10. There is a sealing tube 10 between the top of the outer wall of the PH electrode 11 and the upper part of the inner wall of the threaded tube 9. The sealing tube 10 fits tightly with the PH electrode 11 and the threaded tube 9. The bottom end of the PH electrode 11 extends to the bottom of the inner side of the inner tube 3. The top outer wall of the threaded tube 9 is fixedly fitted with a square plate 12. The left end of the detection tube 1 is fixedly connected to the filter bucket 13. The top left side of the outer wall of the filter bucket 13 is fixedly connected to the water inlet pipe 15. The right end of the detection tube 1 is fixedly connected to the water outlet pipe 19.

[0015] The bottom right side of the outer wall of the filter barrel 13 is connected to the detection tube 1. The filter barrel 13 is set vertically, the detection tube 1 is set horizontally, and the water inlet pipe 15 is set horizontally. The top of the filter barrel 13 is open and fixedly connected to the top cover 14. The top of the filter barrel 13 is fixedly connected to the top cover 14 by bolts 20. The bolts 20 pass through the edge of the top cover 14 and enter the inside of the tube wall of the filter barrel 13. The bolts 20 are slidably connected to the edge of the top cover 14. The bolts 20 are threadedly connected to the inside of the tube wall of the filter barrel 13. The inner wall of the filter barrel 13 is fixedly connected to the limiting ring 16. The limiting ring 16 is located below the water inlet pipe 15. The limiting ring 16 contains a filter cylinder 17. The outer edge of the top of the filter cylinder 17 abuts against the top of the limiting ring 16. Several mounting bolts 18 are inserted into the outer edge of the top of the filter cylinder 17. The mounting bolts 18 are evenly distributed and are threadedly connected to the limiting ring 16.

[0016] The pH electrode 11 is connected to an external electronic display device. Both the pH electrode 11 and the external electronic display device are existing technology devices.

[0017] The left end of the detection tube 1 is fixedly connected to the filter barrel 13 via a flange. A flange is provided at the left end of the detection tube 1 and at the end of the filter barrel 13. A flange is provided at the connection between the filter barrel 13 and the detection tube 1. The right end of the detection tube 1 is fixedly connected to the water outlet pipe 19 via a flange. A flange is provided at the right end of the detection tube 1 and at the end of the water outlet pipe 19.

[0018] The liquid to be tested enters the filter barrel 13 through the inlet pipe 15. First, it passes through the filter cylinder 17 to remove solid particles and impurities. The filtered liquid flows from the bottom right side of the filter barrel 13 into the left inlet of the detection tube 1.

[0019] When liquid enters the detection tube 1, part of the liquid flows through flow channel 22; the other part flows sequentially through the tortuous path of inner tube 2 and inner tube 3, i.e., from opening 4 to opening 5 to opening 6 and finally to opening 7. This tortuous path reduces the liquid flow velocity, acting as a decelerator and significantly reducing the flow rate to avoid direct impact on the pH electrode 11. The internal structure of the detection tube 1 allows for smooth liquid flow while also slowing down a portion of the liquid to pass through the pH electrode for measurement.

[0020] The pH electrode 11 is inserted into the threaded tube 9, fixed and waterproofed by the sealing tube 10, and screwed into the fixing tube 8. The bottom end of the pH electrode 11 extends to the bottom of the inner tube 2 3, contacts the slow-flowing liquid for measurement, and the liquid is discharged from the outlet tube 19 after measurement.

[0021] When replacing or cleaning the filter cartridge 17, open the top cover 14 and remove the mounting bolts 18 to take out the filter cartridge 17.

[0022] The rotating square plate 12 allows for the removal of the threaded tube 9 and the internal pH electrode 11, preventing damage.

[0023] This utility model only protects the mechanical structure; the related software control components are not within the scope of protection of this utility model.

Claims

1. A pH electrode measuring device comprising a detection tube (1), the middle part of the detection tube (1) being cylindrical, the diameter of the middle part of the detection tube (1) being larger than the diameter of the both sides of the detection tube (1), characterized in that, The inner top wall and the inner bottom wall of the middle part of the detection tube (1) are fixedly connected to the inner tube 1 (2) and the inner tube 2 (3), respectively. The inner tube 2 (3) is located inside the inner tube 1 (2). There is a gap between the inner tube 2 (3) and the inner tube 1 (2). There is a gap between the inner tube 1 (2) and the middle inner wall of the detection tube (1). The gap between the inner tube 1 (2) and the middle inner wall of the detection tube (1) is a flow channel (22). The outer wall of the inner tube 1 (2) has an opening 1 (4) at the bottom left and an opening 4 (7) at the top right. The outer wall of the inner tube 2 (3) has an opening 2 (5) at the top left and an opening 3 (6) at the bottom right. The top middle part of the detection tube (1) is fixedly connected to the fixed tube (8). The fixed tube (8) runs through the top outer wall of the detection tube (1) from top to bottom. The lower part of the fixed tube (8) is located inside the inner tube 2 (3). The fixed tube (8) has a threaded tube (9) inside. The fixed tube (8) and the threaded tube (9) are connected. 9) Threaded connection, the upper and lower ends of the threaded tube (9) pass through the upper and lower ends of the fixed tube (8), the PH electrode (11) is inserted into the threaded tube (9), the top of the outer wall of the PH electrode (11) is fitted with a sealing tube (10), the inner diameter of the upper part of the inner wall of the threaded tube (9) is larger than the inner diameter of the lower part, the upper part of the inner wall of the threaded tube (9) has a sealing tube (10), the top of the outer wall of the PH electrode (11) and the upper part of the inner wall of the threaded tube (9) have a sealing tube (10), the sealing tube (10) is tightly fitted with the PH electrode (11) and the threaded tube (9), the bottom end of the PH electrode (11) extends to the bottom of the inner side of the inner tube (3), the top outer wall of the threaded tube (9) is fixedly fitted with a square plate (12), the left end of the detection tube (1) is fixedly connected to the filter bucket (13), the top left side of the outer wall of the filter bucket (13) is fixedly connected to the inlet pipe (15), and the right end of the detection tube (1) is fixedly connected to the outlet pipe (19).

2. A PH electrode measuring device according to claim 1, wherein The bottom right side of the outer wall of the filter barrel (13) is connected to the detection tube (1). The filter barrel (13) is set vertically, the detection tube (1) is set horizontally, and the inlet pipe (15) is set horizontally. The top of the filter barrel (13) is open and fixedly connected to the top cover (14). The top of the filter barrel (13) is fixedly connected to the top cover (14) by bolts (20). The bolts (20) penetrate the edge of the top cover (14) and enter the inside of the filter barrel (13). The bolts (20) slide against the edge of the top cover (14). The bolt (20) is threaded to the inner wall of the filter barrel (13). The inner wall of the filter barrel (13) is fixedly connected to the limiting ring (16). The limiting ring (16) is located below the water inlet pipe (15). The limiting ring (16) contains a filter cylinder (17). The outer edge of the top of the filter cylinder (17) abuts against the top of the limiting ring (16). Several mounting bolts (18) are inserted into the outer edge of the top of the filter cylinder (17). The mounting bolts (18) are evenly distributed and are threaded to the limiting ring (16).

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