Self-cleaning PH probe

Abstract

The utility model provides a self-cleaning PH probe which comprises a shell and a suction section, the suction section is located below the shell, a constant potential source, a current value-pH value conversion instrument and a detection probe which are sequentially connected in series are arranged in the shell, a partition piece is arranged on the lower portion of the shell, a cavity is formed below the partition piece, the cavity is communicated with the suction section, and the suction section is communicated with the shell. The detection probe penetrates through the partition piece and extends into the suction section, the outer wall of the detection probe is sleeved with a circle of hollow cleaning device, the cleaning device comprises a connecting pipeline, a cleaning pipeline, a telescopic rod and a cleaning brush, a gap is formed between the cleaning pipeline and the detection probe, the telescopic rod is fixedly connected to the upper portion of the connecting pipeline, and the cleaning brush is fixedly connected to the lower portion of the cleaning pipeline. The telescopic end of the telescopic rod is fixedly connected with the partition piece, the left end and the right end of the connecting pipeline are provided with a water inlet and an air inlet respectively, the water inlet and the air inlet are connected with a water supply device and an air supply device respectively, residual attachments on the detection probe are cleaned through stretching and retracting of the cleaning brush, and the measurement accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning, and more specifically to a self-cleaning PH probe. Background Art

[0002] In the process of food chemical quality inspection, pH probes are often used. The pH electrodes on the currently used pH probes mostly use glass electrodes as measuring electrodes and calomel electrodes as reference electrodes. When the pH probe detects the medium, contaminants will adhere to the glass electrode, which will affect the potential generated by the glass electrode, and then affect the indication of the pH probe, reducing the sensitivity and measurement accuracy of the pH probe, or even making it invalid. In the process of food chemical quality inspection and treatment, more accurate measurement results are required to better perform process operations, so it is very necessary to clean the electrodes of the pH probe regularly. The existing technology usually uses manual cleaning, which is not only labor-intensive and time-consuming, but also causes measurement interruptions and affects automatic detection. The measuring probe needs to be frequently cleaned and calibrated, and the maintenance workload is large.

[0003] In the preparation process of pharmaceutical intermediates 2'-deoxy-2'-β-fluoro-4'-azidocytidine (FNC) and pyronaridine (AMP), high requirements are placed on the pH value, temperature and other conditions during the reaction process, and the existing pH probes cannot meet the requirements.

[0004] The existing patent publication number is: CN203365374U, which discloses an easy-to-clean pH value measuring instrument, including a shell and an intake section, the intake section is located below the shell, and the shell is provided with a constant potential source, a current value-pH value conversion instrument and a probe connected in series in sequence, the probe is composed of a working electrode and a counter electrode, a separator is provided at the lower part of the shell, the constant potential source and the current value-pH value conversion instrument are located above the separator, and a chamber is provided below the separator, the probe passes through the separator and extends into the intake section, and an air hole is provided on the intake section, and the air hole is higher than the bottom end of the probe; the chamber is connected to a water supply device through a water pipe, and the chamber is also connected to an air supply device through an air pipe, a water valve is provided on the water pipe, and an air valve is provided on the air pipe.

[0005] However, this patent only relies on flushing with water and air to clean the probe, and cannot effectively and effectively clean the attachments on the probe.

[0006] In view of this, the utility model provides a self-cleaning pH probe, which can effectively and effectively clean the attached objects on the probe by using water, air, and a cleaning brush. Utility Model Content

[0007] The utility model aims to provide a low-cost, highly efficient and self-cleanable pH probe.

[0008] A self-cleanable pH probe, comprising a shell 10 and an inhalation section 20, characterized in that: the inhalation section 20 is located below the shell 10, and a constant potential source 11, a current value-pH value conversion instrument 12 and a detection probe 13 connected in series are arranged in the shell 10, and the detection probe 13 is composed of a working electrode and a counter electrode, and a separator 14 is arranged at the lower part of the shell 10, the constant potential source 11 and the current value-pH value conversion instrument 12 are located above the separator 14, and a chamber 15 is formed below the separator 14, and the chamber 15 is connected to the inhalation section 20, and the detection probe 13 passes through The separator 14 extends into the suction section 20. The outer wall of the detection probe 13 is covered with a hollow cleaning device 30. The cleaning device 30 includes a connecting pipe 38, a cleaning pipe 39, a telescopic rod 31 and a cleaning brush 32. A gap is provided between the cleaning pipe 39 and the detection probe 13. The top of the connecting pipe 38 is fixedly connected to the telescopic rod 31. The telescopic end of the telescopic rod 31 is fixedly connected to the separator 14. The left and right ends of the connecting pipe 38 are respectively provided with a water inlet 33 and an air inlet 34. The water inlet 33 and the air inlet 34 are respectively connected to a water supply device 331 and an air supply device 341.

[0009] Furthermore, a circle of cleaning brushes 32 is provided inside the cleaning pipe 39 for cleaning the detection probe 13 . The cleaning brushes 32 are fixedly surrounded on the inner wall of the cleaning pipe 39 and are in contact with the detection probe 13 .

[0010] Furthermore, a plurality of circular through holes 37 are provided on the outer wall of the cleaning pipe 39 for drainage and ventilation.

[0011] Furthermore, a spiral air pipe 391 is provided on the outer wall of the cleaning pipe 39, and the spiral air pipe 391 extends from the top of the cleaning pipe 39 to the tail of the cleaning pipe 39 and is connected to the connecting pipe 38. The spiral air pipe 391 is provided with a circular hole at a position facing the inside of the cleaning pipe 39 for ventilation.

[0012] Furthermore, the water supply device 331 is arranged outside the shell 10, the output end of the water supply device 331 is connected to the chamber 15 through a water pipe, and a water valve 35 is provided on the water pipe, and the water inlet 33 of the cleaning device 30 is connected to the output end of the water supply device 331 through a hose.

[0013] Furthermore, the air supply device 341 is arranged outside the shell 10, the output end of the air supply device 341 is connected to the chamber 15 through an air pipe, and an air valve 36 is provided on the air pipe, and the air inlet 34 is connected to the output end of the air supply device 341 through a hose.

[0014] Furthermore, the suction section 20 is provided with an air hole 21 , and the air hole 21 is higher than the bottom end of the probe for better ventilation to ensure the accuracy of measurement.

[0015] Furthermore, the bottom of the suction section 20 is in an oblique shape for absorbing the target detection liquid.

[0016] Furthermore, a hanging ring 22 is provided at the top of the housing 10 for hanging and fixing the pH probe.

[0017] Furthermore, the telescopic rod 31, the water supply device 331 and the air supply device 341 are all electrically connected to the controller.

[0018] Beneficial effects of the utility model: The utility model proposes a self-cleaning pH probe, comprising a shell 10 and an inhalation section 20, wherein the inhalation section 20 is located below the shell 10, wherein a constant potential source 11, a current value-pH value conversion instrument 12 and a detection probe 13 connected in series are arranged in the shell 10, wherein the detection probe 13 is composed of a working electrode and a counter electrode, wherein a separator 14 is arranged at the lower part of the shell 10, wherein the constant potential source 11 and the current value-pH value conversion instrument 12 are located above the separator 14, wherein a chamber 15 is formed below the separator 14, wherein the chamber 15 is connected to the inhalation section 20, wherein the detection probe 13 passes through the separator 14 and extends into the inhalation section 2 0, the outer wall of the detection probe 13 is sheathed with a circle of hollow cleaning device 30, the cleaning device 30 includes a connecting pipe 38, a cleaning pipe 39, a telescopic rod 31 and a cleaning brush 32, a gap is provided between the cleaning pipe 39 and the detection probe 13, the top of the connecting pipe 38 is fixedly connected to the telescopic rod 31, the telescopic end of the telescopic rod 31 is fixedly connected to the partition 14, the left and right ends of the connecting pipe 38 are respectively provided with a water inlet 33 and an air inlet 34, the water inlet 33 and the air inlet 34 are respectively connected to a water supply device 331 and an air supply device 341, the cleaning brush 32 is extended and retracted to clean the residual attachments on the detection probe 13, thereby improving the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the self-cleanable pH probe of the present application.

[0020] Figure 2 This is a schematic diagram of a circuit control module of the self-cleanable pH probe of the present application.

[0021] Figure 3 This is a schematic diagram of a circuit control module of the self-cleanable pH probe of the present application.

[0022] Figure 4 This is a cross-sectional view of a cleaning device for a self-cleanable pH probe of the present application.

[0023] Main component symbols

[0024]

[0025]

[0026] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] The following examples are described to assist the understanding of the present application, and the examples are not and should not be interpreted in any way as limiting the scope of protection of the present application.

[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as separate functional units (which may include sub-units), but those skilled in the art will recognize that various components or portions thereof may be divided into separate components or may be integrated together (including within a single system or component).

[0029] At the same time, the connections between components or systems are not intended to be limited to direct connections, rather, the data between these components may be modified, reformatted, or otherwise changed by intermediate components. In addition, additional or fewer connections may be used. It should also be noted that the terms "coupled," "connected," or "input" should be understood to include direct connections, indirect connections through one or more intermediate devices, and wireless connections.

[0030] Embodiment 1:

[0031] like Figure 1 As shown, it is a schematic diagram of the overall structure of the self-cleanable pH probe of the present application; Figure 2 As shown, it is a schematic diagram of the circuit control module of the self-cleanable pH probe of the present application; Figure 3 As shown, it is a schematic diagram of the circuit control module of the self-cleanable pH probe of the present application; Figure 4 Shown is a cross-sectional view of a cleaning device for a self-cleanable pH probe of the present application.

[0032] A self-cleanable pH probe comprises a housing 10 and an inhalation section 20, wherein the inhalation section 20 is located below the housing 10, wherein a constant potential source 11, a current value-pH value conversion instrument 12 and a detection probe 13 connected in series are arranged in the housing 10, wherein the detection probe 13 is composed of a working electrode and a counter electrode, wherein a separator 14 is arranged at the lower part of the housing 10, wherein the constant potential source 11 and the current value-pH value conversion instrument 12 are located above the separator 14, wherein a chamber 15 is formed below the separator 14, wherein the chamber 15 is connected to the inhalation section 20, and wherein the detection probe 13 passes through the separator 14 and extends into the suction section 20, the outer wall of the detection probe 13 is sheathed with a circle of hollow cleaning device 30, the cleaning device 30 includes a connecting pipe 38, a cleaning pipe 39, a telescopic rod 31 and a cleaning brush 32, a gap is provided between the cleaning pipe 39 and the detection probe 13, the top of the connecting pipe 38 is fixedly connected to the telescopic rod 31, the telescopic end of the telescopic rod 31 is fixedly connected to the partition 14, the left and right ends of the connecting pipe 38 are respectively provided with a water inlet 33 and an air inlet 34, the water inlet 33 and the air inlet 34 are respectively connected to a water supply device 331 and an air supply device 341.

[0033] In some embodiments, a circle of cleaning brushes 32 is disposed inside the cleaning pipe 39 for cleaning the detection probe 13 . The cleaning brushes 32 are fixedly disposed around the inner wall of the cleaning pipe 39 and in contact with the detection probe 13 .

[0034] The outer wall of the cleaning pipe 39 is provided with a plurality of circular through holes 37 for drainage and ventilation.

[0035] A spiral air pipe 391 is provided on the outer wall of the cleaning pipe 39. The spiral air pipe 391 extends from the top of the cleaning pipe 39 to the tail of the cleaning pipe 39 and is connected to the connecting pipe 38. The spiral air pipe 391 is provided with a circular hole at a position facing the inside of the cleaning pipe 39 for ventilation.

[0036] In some embodiments, the water supply device 331 is arranged on the outside of the shell 10, the output end of the water supply device 331 is connected to the chamber 15 through a water pipe, and a water valve 35 is provided on the water pipe, and the water inlet 33 of the cleaning device 30 is connected to the output end of the water supply device 331 through a hose.

[0037] The air supply device 341 is arranged outside the shell 10, and the output end of the air supply device 341 is connected to the chamber 15 through an air pipe, and an air valve 36 is provided on the air pipe. The air inlet 34 is connected to the output end of the air supply device 341 through a hose.

[0038] In some embodiments, the suction section 20 is provided with an air hole 21 , and the air hole 21 is higher than the bottom end of the probe for better ventilation to ensure the accuracy of measurement.

[0039] The bottom of the suction section 20 is in an oblique shape for absorbing the target detection liquid.

[0040] In some embodiments, a hanging ring 22 is provided at the top of the housing 10 for hanging and fixing the pH probe.

[0041] In some embodiments, the telescopic rod 31, the water supply device 331 and the air supply device 341 are all electrically connected to the controller. When cleaning starts, the controller transmits a signal to the water supply device 331 and the telescopic rod 31, the water supply device 331 supplies water to the cleaning device 30, and the telescopic rod 31 draws the cleaning device 30 back and forth, so that the cleaning brush 32 cleans the detection probe 13 back and forth in a wet water environment; when cleaning is completed, the water supply device 331 and the telescopic rod 31 stop running and transmit a signal to the controller, the controller outputs a signal to the air supply device 341, the air supply device 341 starts to supply air, blows dry the cleaning device 30 and the detection probe 13, thereby completing the automatic cleaning process.

[0042] Beneficial effects of the utility model: The utility model proposes a self-cleaning pH probe, comprising a shell 10 and an inhalation section 20, wherein the inhalation section 20 is located below the shell 10, wherein a constant potential source 11, a current value-pH value conversion instrument 12 and a detection probe 13 connected in series are arranged in the shell 10, wherein the detection probe 13 is composed of a working electrode and a counter electrode, wherein a separator 14 is arranged at the lower part of the shell 10, wherein the constant potential source 11 and the current value-pH value conversion instrument 12 are located above the separator 14, wherein a chamber 15 is formed below the separator 14, wherein the chamber 15 is connected to the inhalation section 20, wherein the detection probe 13 passes through the separator 14 and extends into the inhalation section 2 0, the outer wall of the detection probe 13 is sheathed with a circle of hollow cleaning device 30, the cleaning device 30 includes a connecting pipe 38, a cleaning pipe 39, a telescopic rod 31 and a cleaning brush 32, a gap is provided between the cleaning pipe 39 and the detection probe 13, the top of the connecting pipe 38 is fixedly connected to the telescopic rod 31, the telescopic end of the telescopic rod 31 is fixedly connected to the partition 14, the left and right ends of the connecting pipe 38 are respectively provided with a water inlet 33 and an air inlet 34, the water inlet 33 and the air inlet 34 are respectively connected to a water supply device 331 and an air supply device 341, the cleaning brush 32 is extended and retracted to clean the residual attachments on the detection probe 13, thereby improving the measurement accuracy.

[0043] Although the present application has disclosed multiple aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art, and several modifications and improvements may be made without departing from the concept of the present application, all of which belong to the protection scope of the present application. The multiple aspects and embodiments disclosed in the present application are only for illustration and are not intended to limit the present application. The actual protection scope of the present application shall be subject to the claims.

Claims

1. A self-cleanable pH probe, comprising a housing (10) and a suction section (20), characterized in that: The suction section (20) is located below the shell (10). The shell (10) is provided with a constant potential source (11), a current value-pH value conversion instrument (12) and a detection probe (13) which are connected in series in sequence. The detection probe (13) is composed of a working electrode and a counter electrode. A separator (14) is provided at the bottom of the shell (10). The constant potential source (11) and the current value-pH value conversion instrument (12) are located above the separator (14). A chamber (15) is formed below the separator (14). The chamber (15) is connected to the suction section (20). The detection probe (13) passes through the separator (14) and extends into the suction section (20). The outer wall of the detection probe (13) is sheathed with a hollow cleaning device (30). The cleaning device (30) includes a connecting A connecting pipe (38), a cleaning pipe (39), a telescopic rod (31) and a cleaning brush (32); a gap is provided between the cleaning pipe (39) and the detection probe (13); the top of the connecting pipe (38) is fixedly connected to the telescopic rod (31); the telescopic end of the telescopic rod (31) is fixedly connected to the partition plate (14); the left and right ends of the connecting pipe (38) are respectively provided with a water inlet (33) and an air inlet (34); the water inlet (33) and the air inlet (34) are respectively connected to a water supply device (331) and an air supply device (341); a circle of cleaning brushes (32) is provided inside the cleaning pipe (39) for cleaning the detection probe (13); the cleaning brush (32) is fixedly surrounded on the inner wall of the cleaning pipe (39) and is in contact with the detection probe (13).

2. The self-cleanable pH probe according to claim 1, characterized in that: The outer wall of the cleaning pipe (39) is provided with a plurality of circular through holes (37) for drainage and ventilation.

3. The self-cleanable pH probe according to claim 1, characterized in that: A spiral air pipe (391) is provided on the outer wall of the cleaning pipe (39). The spiral air pipe (391) extends from the top of the cleaning pipe (39) to the rear of the cleaning pipe (39) and is connected to the connecting pipe (38). The spiral air pipe (391) is provided with a circular hole at a position facing the inside of the cleaning pipe (39) for ventilation.

4. The self-cleanable pH probe according to claim 1, characterized in that: The water supply device (331) is arranged outside the housing (10); the output end of the water supply device (331) is connected to the chamber (15) via a water pipe, and a water valve (35) is provided on the water pipe; the water inlet (33) of the cleaning device (30) is connected to the output end of the water supply device (331) via a hose.

5. The self-cleanable pH probe according to claim 1, characterized in that: The air supply device (341) is arranged outside the shell (10), the output end of the air supply device (341) is connected to the chamber (15) through an air pipe, and an air valve (36) is provided on the air pipe, and the air inlet (34) is connected to the output end of the air supply device (341) through a hose.

6. The self-cleanable pH probe according to claim 1, characterized in that: The suction section (20) is provided with an air hole (21), and the air hole (21) is higher than the bottom end of the probe and is used for better air permeability to ensure the accuracy of measurement.

7. The self-cleanable pH probe according to claim 1, characterized in that: The bottom of the suction section (20) is in an oblique shape and is used to absorb the target detection liquid.

8. The self-cleanable pH probe according to claim 1, characterized in that: The top end of the housing (10) is provided with a hanging ring (22) for hanging and fixing the pH probe.

9. The self-cleanable pH probe according to claim 1, characterized in that: The telescopic rod (31), the water supply device (331) and the air supply device (341) are all electrically connected to the controller.

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