Simple and practical online pH detector

Abstract

The utility model relates to the technical field of pH detectors, in particular to a simple and practical on-line pH detector, which prevents the detector from being damaged by high temperature and stirring of a reaction kettle, reduces the deposition of impurities entering a first box body, and improves the protection effect. Comprising a first box body and a detection instrument, the detection instrument is installed on the outer side wall of the first box body, and the input end of the detection instrument is communicated with the first box body; the first valve is communicated with the upper part of the outer side wall of the second box body, the input end of the first valve is communicated with the bottom of the reaction kettle, the input end of the three-way pipe is communicated with the interior of the second box body, one output end of the three-way pipe is communicated with the first box body, and the other output end of the three-way pipe is communicated with the filter screen; the other output end of the three-way pipe is communicated with the cooling device, the cooling device is used for cooling a solution in the reaction kettle, the filter screen is mounted on the inner side wall of the second box body, and the conveying device is communicated with the first box body.

Description

Technical Field

[0001] The utility model relates to the technical field of pH detectors, in particular to a simple and practical online pH detector. Background Art

[0002] A pH tester is an instrument used to measure the acidity and alkalinity of a solution. It determines the pH value of a solution by measuring the hydrogen ion concentration in the solution. A pH tester is usually composed of an electrode and a display screen. Currently, when performing pH testing on a solution in a reactor, the conventional testing method is to insert the pH tester electrode directly into the reactor to below the liquid level. If the reaction liquid is stirred too fast, the instrument may be easily damaged. In addition, the cost of this pH tester that is directly inserted into the reactor is relatively high.

[0003] As in the utility model patent with the prior art authorization announcement number CN208688998U, the detector includes a detector body, a display screen, a PH detection pen, a turntable and a liquid pump. A display screen is inlaid on the outer wall of the detector body, and a power supply, an indicator light and a button are respectively installed on the front outer wall of the handle of the detector body. A turntable is installed on the rear outer wall of the handle of the detector body, and the PH detection pen is placed on the turntable through a data cable reel. A material extraction tube is installed on the left outer wall of the detector body, and a liquid pump is installed inside the detector body. A sample storage container is installed inside the detector body under the liquid pump, and a battery is installed on the bottom inner wall of the detector body.

[0004] However, during the use of the detector, it was found that the pH detection pen of the detector was easily damaged by stirring and high temperature when inserted into the reactor, and the detection operation was relatively complicated, which reduced the detection work efficiency. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a simple and practical online pH detector which can avoid damage to the detection instrument by high temperature and stirring of the reactor, reduce the deposition of impurities in the first box body, and improve the protection effect.

[0006] The utility model discloses a simple and practical online pH detector, comprising a first box and a detection instrument, wherein the detection instrument is mounted on the outer side wall of the first box, and the input end of the detection instrument is communicated with the first box; the utility model also comprises a cooling device, a conveying device, a second box, a first valve, a three-way pipe and a filter screen, wherein the first valve is arranged on the upper part of the outer side wall of the second box, the input end of the first valve is arranged on the bottom of the reactor, the input end of the three-way pipe is communicated with the second box, one of the output ends of the three-way pipe is communicated with the first box, and the other output end of the three-way pipe is communicated with the cooling device, the cooling device is used to cool the solution in the reactor, the filter screen is mounted on the inner side wall of the second box, the conveying device is communicated with the first box, and the conveying device is used to convey the solution in the first box to the reactor; when the pH value of the solution in the reactor needs to be adjusted, the temperature of the solution in the reactor is adjusted. When detecting the pH value, the first valve is opened to allow the solution in the kettle to flow naturally into the second box, the solution is filtered through the filter, and the filtered solution is transported to the first box through the three-way pipe. Thereafter, the solution in the first box flows back into the reactor through the transport device. When the solution flows in the first box, the pH value is detected online by the detection instrument. When the temperature of the solution is high, the solution is first transported to the cooling device through the three-way pipe, and then transported to the first box after the solution is cooled, so as to avoid damage to the detection instrument by high temperature and stirring of the reactor. The solution is filtered through the filter to reduce the deposition of impurities in the first box. When the detection is completed, a part of the solution in the first box is retained and used as a protective liquid at the detection end of the detection instrument, thereby improving the protection effect of the detection instrument.

[0007] Preferably, the cooling device includes a first pump body, two groups of second valves, a cylinder body, two groups of distribution boxes and a multi-group distribution pipe, the first pump body is connected and arranged on the three-way pipe, the two groups of second valves are respectively connected and arranged on the two output ends of the three-way pipe, the cylinder body is installed at the top of the first box body, the two groups of distribution boxes are respectively installed on the upper and lower parts of the inner wall of the cylinder body, the other output end of the three-way pipe is connected with the upper distribution box, the lower distribution box is connected with the first box body, the multi-group distribution pipe is connected and arranged between the two groups of distribution boxes, and cooling liquid is arranged inside the cylinder body; the filtered solution in the second box body is extracted by opening the first pump body, and the solution is transported through the three-way pipe, and the opening or closing of the two groups of second valves are respectively controlled so that the normal temperature or high temperature solution enters the first box body or the upper distribution box. When the high temperature solution enters the upper distribution box, the solution is diverted and flows downward through the multi-group distribution pipe. During the flow process, the diverter pipe exchanges heat with the cooling liquid, so that the diverter pipe cools the solution, and the cooled solution enters the lower distribution box, and then flows into the first box body, thereby improving the protection effect of the detection instrument.

[0008] Preferably, it also includes a first electric cylinder, a scraper, a closed door and a second electric cylinder, the first electric cylinder is installed on the outer wall of the second box body, the scraper is installed on the movable end of the first electric cylinder, and the bottom end of the scraper contacts the top of the filter screen, the side of the second box body is provided with an opening, the closed door is rotatably installed at the opening of the second box body, the fixed end of the second electric cylinder is rotatably installed on the outer wall of the second box body, and the movable end of the second electric cylinder is rotatably connected to the closed door; the closed door is pushed to rotate and open by controlling the second electric cylinder, and then the scraper is pushed to move by the first electric cylinder, so that the scraper discharges the impurities filtered by the top of the filter screen through the opening to the outside, thereby improving the convenience of automatic cleaning of the filter screen.

[0009] Preferably, the conveying device includes a second pump body and a conveying pipe, the input end of the second pump body is connected to the first box body, the output end of the second pump body is connected to the conveying pipe, and the output end of the conveying pipe is connected to the reactor; the solution in the first box body is extracted by opening the second pump body, and then the solution flows back to the reactor through the conveying pipe, thereby improving the convenience of solution reflux and conveying.

[0010] Preferably, it also includes a collecting trough, which is installed on the outer side wall of the second box body and is arranged below the opening of the second box body; the discharged impurities are collected through the collecting trough, thereby improving the convenience of impurity collection.

[0011] Preferably, a thermometer is also included, which is installed on the outer side wall of the second box body and is connected to the second box body; the temperature of the solution is measured by the thermometer, so as to facilitate judgment on whether the solution needs to be cooled.

[0012] Preferably, a third valve is further included, and the third valve is connected and arranged on the delivery pipe; by arranging the third valve, the convenience of sealing between the delivery pipe and the reactor is improved.

[0013] Compared with the prior art, the utility model has the following beneficial effects: when it is necessary to detect the pH value of the solution in the reactor, the first valve is opened to allow the solution in the reactor to flow naturally into the second box, the solution is filtered through the filter, and the filtered solution is transported to the first box through the three-way pipe, and then the solution in the first box is refluxed into the reactor through the transport device, and the solution is tested for online pH value through the detection instrument while flowing in the first box, and when the temperature of the solution is high, the solution is first transported to the cooling device through the three-way pipe, and then transported to the first box after the solution is cooled, so as to avoid the detection instrument being damaged by high temperature and stirring of the reactor, and the solution is filtered through the filter to reduce the deposition of impurities in the first box, and when the detection is completed, a part of the solution in the first box is retained and used as a protective liquid at the detection end of the detection instrument, thereby improving the protection effect of the detection instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 is an axonometric structural diagram of the connection between the second box and the first valve, etc.;

[0016] Figure 3 It is a schematic diagram of the axonometric partial structure of the connection between the delivery pipe and the third valve, etc.;

[0017] Figure 4 It is an axonometric structural diagram of the connection between the tee pipe and the first pump body, etc.;

[0018] Figure 5 It is a schematic diagram of the axonometric structure of the connection between the first box and the detection instrument, etc.;

[0019] Markings in the attached drawings: 1. first box body; 2. detection instrument; 3. second box body; 4. first valve; 5. three-way pipe; 6. filter screen; 7. first pump body; 8. second valve; 9. cylinder body; 10. diverter box; 11. diverter pipe; 12. first electric cylinder; 13. scraper; 14. closing door; 15. second electric cylinder; 16. second pump body; 17. delivery pipe; 18. collecting tank; 19. thermometer; 20. third valve. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example 1

[0021] like Figures 1 to 5 As shown, a simple and practical online pH detector of the utility model comprises a first box body 1 and a detection instrument 2, the detection instrument 2 is installed on the outer wall of the first box body 1, and the input end of the detection instrument 2 is communicated with the first box body 1; it also comprises a cooling device, a conveying device, a second box body 3, a first valve 4, a three-way pipe 5 and a filter screen 6, the first valve 4 is connected and arranged on the upper part of the outer wall of the second box body 3, the input end of the first valve 4 is connected and arranged at the bottom of the reactor, the input end of the three-way pipe 5 is communicated with the second box body 3, one of the output ends of the three-way pipe 5 is communicated with the first box body 1, and the other output end of the three-way pipe 5 is communicated with the cooling device, the cooling device is used to cool the solution in the reactor, the filter screen 6 is installed on the inner wall of the second box body 3, the conveying device is connected with the first box body 1, and the conveying device is used to convey the solution in the first box body 1 to the reactor;

[0022] like Figure 3As shown, the cooling device includes a first pump body 7, two groups of second valves 8, a cylinder 9, two groups of manifold boxes 10 and a multi-group manifold pipe 11, the first pump body 7 is connected and arranged on the three-way pipe 5, the two groups of second valves 8 are respectively connected and arranged on the two output ends of the three-way pipe 5, the cylinder 9 is installed on the top of the first box body 1, the two groups of manifold boxes 10 are respectively installed on the upper and lower parts of the inner wall of the cylinder body 9, the other output end of the three-way pipe 5 is connected with the upper manifold box 10, the lower manifold box 10 is connected with the first box body 1, the multi-group manifold pipe 11 is connected and arranged between the two groups of manifold boxes 10, and the cylinder body 9 is provided with a coolant;

[0023] In this embodiment, when it is necessary to detect the pH value of the solution in the reactor, the first valve 4 is opened to allow the solution in the reactor to flow naturally into the second box 3, the solution is filtered through the filter 6, and the filtered solution is transported to the first box 1 through the three-way pipe 5. Thereafter, the solution in the first box 1 is refluxed into the reactor through the transporting device. When the solution flows in the first box 1, the pH value is detected online by the detection instrument 2. When the temperature of the solution is high, the solution is first transported to the cooling device through the three-way pipe 5, and then transported to the first box 1 after the solution is cooled, so as to avoid the detection instrument 2 being damaged by high temperature and stirring of the reactor. The solution is filtered through the filter 6 to reduce the deposition of impurities in the first box 1. When the detection is completed, a part of the solution in the first box 1 is retained and used as a protective liquid at the detection end of the detection instrument 2, thereby improving the protection effect of the detection instrument 2. Example 2

[0024] like Figures 1 to 5 As shown, a simple and practical online pH detector of the utility model comprises a first box body 1 and a detection instrument 2, the detection instrument 2 is installed on the outer wall of the first box body 1, and the input end of the detection instrument 2 is communicated with the first box body 1; it also comprises a cooling device, a conveying device, a second box body 3, a first valve 4, a three-way pipe 5 and a filter screen 6, the first valve 4 is connected and arranged on the upper part of the outer wall of the second box body 3, the input end of the first valve 4 is connected and arranged at the bottom of the reactor, the input end of the three-way pipe 5 is communicated with the second box body 3, one of the output ends of the three-way pipe 5 is communicated with the first box body 1, and the other output end of the three-way pipe 5 is communicated with the cooling device, the cooling device is used to cool the solution in the reactor, the filter screen 6 is installed on the inner wall of the second box body 3, the conveying device is connected with the first box body 1, and the conveying device is used to convey the solution in the first box body 1 to the reactor;

[0025] like Figure 3As shown, the cooling device includes a first pump body 7, two groups of second valves 8, a cylinder 9, two groups of manifold boxes 10 and a multi-group manifold pipe 11, the first pump body 7 is connected and arranged on the three-way pipe 5, the two groups of second valves 8 are respectively connected and arranged on the two output ends of the three-way pipe 5, the cylinder 9 is installed on the top of the first box body 1, the two groups of manifold boxes 10 are respectively installed on the upper and lower parts of the inner wall of the cylinder body 9, the other output end of the three-way pipe 5 is connected with the upper manifold box 10, the lower manifold box 10 is connected with the first box body 1, the multi-group manifold pipe 11 is connected and arranged between the two groups of manifold boxes 10, and the cylinder body 9 is provided with a coolant;

[0026] like Figure 3 As shown, it also includes a first electric cylinder 12, a scraper 13, a closed door 14 and a second electric cylinder 15. The first electric cylinder 12 is installed on the outer wall of the second box body 3, the scraper 13 is installed on the moving end of the first electric cylinder 12, and the bottom end of the scraper 13 contacts the top of the filter screen 6. The side of the second box body 3 is provided with an opening, the closed door 14 is rotatably installed at the opening of the second box body 3, the fixed end of the second electric cylinder 15 is rotatably installed on the outer wall of the second box body 3, and the moving end of the second electric cylinder 15 is rotatably connected to the closed door 14;

[0027] like Figure 4 As shown, the delivery device includes a second pump body 16 and a delivery pipe 17, the input end of the second pump body 16 is connected to the first box body 1, the output end of the second pump body 16 is connected to the delivery pipe 17, and the output end of the delivery pipe 17 is connected to the reactor;

[0028] like Figure 3 As shown, it also includes a collecting tank 18, which is installed on the outer side wall of the second box body 3, and the collecting tank 18 is arranged below the opening of the second box body 3;

[0029] like Figure 3 As shown, it also includes a thermometer 19, which is installed on the outer wall of the second box body 3 and is connected to the second box body 3;

[0030] like Figure 4 As shown, it also includes a third valve 20, which is connected and arranged on the delivery pipe 17;

[0031] In this embodiment, the filtered solution in the second box 3 is extracted by opening the first pump body 7, and the solution is transported through the three-way pipe 5. The opening or closing of the two groups of second valves 8 are controlled respectively, so that the solution at normal temperature or high temperature enters the first box 1 or the upper diversion box 10. When the high-temperature solution enters the upper diversion box 10, the solution is diverted and flows downward through the multi-group diversion tube 11. During the flow, the diversion tube 11 exchanges heat with the coolant, so that the diversion tube 11 cools the solution. The cooled solution enters the lower diversion box 10, and then flows into the first box 1, thereby improving the protection effect of the detection instrument 2. The second electric cylinder 15 is controlled to push the closed door 14 to rotate and open, and then the first electric cylinder 12 is used to push the scraper 13 to move, so that the scraper 13 discharges the impurities filtered at the top of the filter screen 6 through the opening, thereby improving the convenience of automatic cleaning of the filter screen 6.

[0032] The utility model discloses a simple and practical online pH detector. When the pH value of the solution in the reactor needs to be detected during operation, the first valve 4 is opened to allow the solution in the reactor to flow naturally into the second box 3, the solution is filtered through the filter 6, and the filtered solution is transported to the first box 1 through the three-way pipe 5. After that, the solution in the first box 1 flows back into the reactor through the transport device. When the solution flows in the first box 1, the pH value is detected online through the detection instrument 2. When the temperature of the solution is high, the solution is first transported to the cooling device through the three-way pipe 5, and then transported to the first box 1 after the solution is cooled. When the detection is completed, a part of the solution in the first box 1 is retained and used as a protective liquid for the detection end of the detection instrument 2.

[0033] The detection instrument 2, the first pump body 7, the first electric cylinder 12, the second electric cylinder 15, the second pump body 16 and the thermometer 19 of the simple and practical online pH detector of the utility model are purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, and the technicians in this field do not need to make creative labor.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A simple and practical online pH detector, comprising a first box (1) and a detection instrument (2), wherein the detection instrument (2) is mounted on the outer wall of the first box (1), and the input end of the detection instrument (2) is connected to the inside of the first box (1); characterized in that: The invention also comprises a cooling device, a conveying device, a second box (3), a first valve (4), a three-way pipe (5) and a filter (6), wherein the first valve (4) is arranged in communication with the upper part of the outer wall of the second box (3), the input end of the first valve (4) is arranged in communication with the bottom of the reactor, the input end of the three-way pipe (5) is connected to the inside of the second box (3), one of the output ends of the three-way pipe (5) is connected to the first box (1), and the other output end of the three-way pipe (5) is connected to the cooling device, the cooling device is used to cool the solution in the reactor, the filter (6) is installed on the inner wall of the second box (3), the conveying device is connected to the first box (1), and the conveying device is used to convey the solution in the first box (1) to the reactor.

2. A simple and practical online pH detector as claimed in claim 1, characterized in that: The cooling device comprises a first pump body (7), two groups of second valves (8), a cylinder (9), two groups of flow boxes (10) and a plurality of flow pipes (11); the first pump body (7) is connected and arranged on the three-way pipe (5); the two groups of second valves (8) are respectively connected and arranged on two output ends of the three-way pipe (5); the cylinder (9) is installed at the top of the first box (1); the two groups of flow boxes (10) are respectively installed at the upper and lower parts of the inner wall of the cylinder (9); the other output end of the three-way pipe (5) is connected to the upper flow box (10); the lower flow box (10) is connected to the first box (1); the plurality of flow pipes (11) are connected and arranged between the two groups of flow boxes (10); and a cooling liquid is arranged inside the cylinder (9).

3. A simple and practical online pH detector as claimed in claim 1, characterized in that: The invention also comprises a first electric cylinder (12), a scraper (13), a closed door (14) and a second electric cylinder (15), wherein the first electric cylinder (12) is mounted on the outer wall of the second box body (3), the scraper (13) is mounted on the movable end of the first electric cylinder (12), and the bottom end of the scraper (13) contacts the top end of the filter screen (6), an opening is arranged on the side of the second box body (3), the closed door (14) is rotatably mounted at the opening of the second box body (3), the fixed end of the second electric cylinder (15) is rotatably mounted on the outer wall of the second box body (3), and the movable end of the second electric cylinder (15) is rotatably connected to the closed door (14).

4. A simple and practical online pH detector as claimed in claim 1, characterized in that: The delivery device comprises a second pump body (16) and a delivery pipe (17); the input end of the second pump body (16) is connected to the first box body (1); the output end of the second pump body (16) is connected to the delivery pipe (17); and the output end of the delivery pipe (17) is connected to the reaction kettle.

5. A simple and practical online pH detector as claimed in claim 1, characterized in that: It also includes a collecting trough (18), which is mounted on the outer side wall of the second box body (3), and the collecting trough (18) is arranged below the opening of the second box body (3).

6. A simple and practical online pH detector as claimed in claim 1, characterized in that: It also includes a thermometer (19), which is mounted on the outer wall of the second box (3) and is in communication with the interior of the second box (3).

7. A simple and practical online pH detector as claimed in claim 4, characterized in that: It also includes a third valve (20), which is arranged in communication with the delivery pipe (17).

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