CN219348721U

CN219348721U - PH value detection device

Info

Publication number: CN219348721U
Application number: CN202320248547.8U
Authority: CN
Inventors: 王风雪; 李亚东
Original assignee: Chengji Intelligent Manufacturing Beijing Technology Co ltd
Current assignee: Chengji Intelligent Manufacturing Beijing Technology Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-07-14
Anticipated expiration: 2033-02-17

Abstract

The utility model provides a PH value detection device, relates to the technical field of detection, and solves the problem that in the prior art, the detection value is inaccurate due to the fact that bubbles are accumulated at a probe of the PH detection device. This PH value detection device includes flow cell, test probe and mounting base, mounting base rotatable sets up on the equipment main part, the flow cell is installed on mounting base, be provided with the runner that is used for circulating liquid in the flow cell and have inlet and liquid outlet on the runner, test probe installs the PH value in order to be used for detecting the liquid in the runner on the flow cell, can drive the flow cell and the test probe rotation on it through rotating mounting base, can rotate the flow cell certain angle as required, make the liquid outlet obliquely upwards, the inlet obliquely downwards, make test probe's position be less than the height of liquid outlet, low density bubble can flow upwards along the runner, reach the effect of discharge bubble, after getting rid of the bubble, test probe then fully is soaked by liquid, the testing result is more accurate.

Description

PH value detection device

Technical Field

The utility model relates to the technical field of detection, in particular to a PH value detection device.

Background

In biopharmaceutical processes, it is often necessary to detect the ph of a liquid, which is defined as the negative logarithmic value of the activity of hydrogen ions in a medium, used to measure the acid-base level of the liquid.

The probe part of the ph sensor is a glass sphere film, hydrogen ions selectively permeate through the glass sphere film to generate electrochemical potential, namely electrochemical layering potential, and the generated electrochemical potential depends on the ph value of liquid. The electrode is internally provided with Ag/AgCl as a reference electrode, and the potential is stable and is not influenced by the pH value of the liquid. The transmitter converts the measured voltage to a corresponding ph value.

The ph detection device is usually arranged in a pipeline, bubbles are easily generated in the process of conveying liquid, and the pipeline is easily accumulated and surrounded on the glass ball film, so that the liquid cannot well infiltrate the glass ball film, and further the detection value is inaccurate.

Disclosure of Invention

The utility model aims to provide a PH value detection device, which solves the technical problem that in the prior art, the detection value is inaccurate due to the accumulation of bubbles at a probe. The preferred technical solutions of the technical solutions provided by the present utility model can produce a plurality of technical effects described below.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a PH value detection device, which comprises a flow cell, a detection probe and a mounting base, wherein:

the utility model discloses a liquid detection device, including installation base, flow cell, detection probe, mounting base rotatable set up on the equipment main part, the flow cell install in on the installation base, be provided with in the flow cell be used for the runner of circulation liquid just there are inlet and liquid outlet on the runner, detection probe install in on the flow cell be used for detecting the PH value of the liquid in the runner, through rotating the installation base can drive on the flow cell with detection probe is rotatory so that the position height that detection probe was located is less than the position height of liquid outlet.

As a further improvement of the present utility model, the mounting base includes a main body connecting portion and a flow cell mounting portion, the main body connecting portion is mounted on the housing of the apparatus main body, the flow cell mounting portion is perpendicular to the main body connecting portion and is of an integral structure, and the flow cell is mounted on the flow cell mounting portion.

As a further improvement of the utility model, a waist-shaped hole and a round hole are arranged on the main body connecting part, two screw holes corresponding to the waist-shaped hole and the round hole respectively are arranged on the main body of the equipment, the connecting piece respectively passes through the waist-shaped hole and the round hole and is connected with the corresponding screw holes, and the mounting base can rotate by taking the round hole as the center of a circle so as to adjust the angle of the flow cell.

As a further improvement of the utility model, the flow cell is in a T shape, a mounting hole for mounting the detection probe is arranged in the flow cell, the mounting hole is communicated with the flow channel, and the axis of the mounting hole is vertical to the axis direction of the flow channel.

As a further improvement of the utility model, the equipment main body is provided with a power structure, an output shaft of the power structure is fixedly connected with the mounting base, and the power structure can drive the mounting base and the flow cell on the mounting base to rotate.

As a further improvement of the present utility model, the PH value detecting apparatus further includes a vibration module by which the flow cell can be vibrated to discharge bubbles at the detecting probe in the flow cell.

As a further development of the utility model, the vibration module comprises an eccentric motor.

As a further improvement of the present utility model, the vibration module is mounted on the flow cell mounting portion, and the vibration module is provided at the bottom of the flow cell.

As a further improvement of the utility model, the angle of rotation of the mounting base around the circular hole is 0-90 degrees.

The PH value detection device comprises a flow cell, a detection probe and a mounting base, wherein the mounting base is rotatably arranged on a device main body, the flow cell is arranged on the mounting base, a flow channel for circulating liquid is arranged in the flow cell, a liquid inlet and a liquid outlet are formed in the flow channel, the detection probe is arranged on the flow cell for detecting the PH value of the liquid in the flow channel, the flow cell and the detection probe on the detection probe can be driven to rotate by rotating the mounting base, the flow cell can be rotated by a certain angle according to the requirement, the liquid outlet is inclined upwards, and the liquid inlet is inclined downwards.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a mounting base according to an embodiment of the present utility model;

FIG. 2 is a front view of a pH value detection apparatus (flow cell in horizontal position) provided in an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a PH value detection device (the flow cell is in a horizontal position) according to an embodiment of the present utility model;

FIG. 4 is a front view of a pH value detection apparatus (flow cell in an inclined position) provided by an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a PH detection device (the flow cell is in an inclined position) according to an embodiment of the present utility model.

Reference numerals: 1. an apparatus main body; 2. a mounting base; 21. a main body connecting part; 22. a flow cell mounting portion; 3. waist-shaped holes; 4. a circular hole; 5. a connecting piece; 6. a detection probe; 7. a flow cell; 71. a liquid inlet; 72. and a liquid outlet.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Referring to fig. 1 to 5, the utility model provides a PH value detection device, which comprises a flow cell 7, a detection probe 6 and a mounting base 2, wherein the mounting base 2 is rotatably arranged on a device main body 1, the flow cell 7 is mounted on the mounting base 2, a flow channel for flowing liquid is arranged in the flow cell 7, a liquid inlet 71 and a liquid outlet 72 are arranged on the flow channel, the detection probe 6 is mounted on the flow cell 7 for detecting the PH value of the liquid in the flow channel, and the mounting base 2 is rotatably arranged in an angle range of 0-90 degrees, as shown in fig. 2 and 3, wherein 0 degrees means that a mounting seat is positioned in a horizontal position, and the flow cell 7 is positioned in the horizontal position. The flow cell 7 and the detection probe 6 thereon can be rotated by rotating the mounting base 2.

Like this, when the bubble is gathered near the probe, rotate mounting base 2, drive the flow cell 7 and rotate, make its liquid outlet 72 upwards to one side, inlet 71 downwards to one side, detect the position of probe 6 and be less than the height of liquid outlet 72, because the density of bubble is lower like this, along with the liquid flows, the bubble can be taken away gradually, makes detection probe 6 part fully infiltrated by liquid, and then guarantees the detection accuracy.

As shown in fig. 1, the mounting base 2 includes a main body connection portion 21 and a flow cell mounting portion 22, the main body connection portion 21 is mounted on the housing of the apparatus main body 1, the flow cell mounting portion 22 is perpendicular to the main body connection portion 21, and the two are integrally formed, and the flow cell 7 is mounted on the flow cell mounting portion 22.

Specifically, in this embodiment, the main body connecting portion 21 is provided with a kidney-shaped hole 3 and a circular hole 4, the casing of the apparatus main body 1 is provided with two screw holes, the two screw holes respectively correspond to the positions of the kidney-shaped hole 3 and the circular hole 4, two connecting pieces 5 (such as screws) respectively pass through the kidney-shaped hole 3 and the circular hole 4 and are connected with the corresponding screw holes, that is, the mounting base 2 is rotatably mounted on the casing of the apparatus main body 1 by adopting two screws, so that the mounting base 2 can rotate with the circular hole 4 as the center of a circle, and then the angle of the flow cell 7 can be adjusted.

In this embodiment, the flow cell 7 is of a T shape, a flow channel for flowing liquid is provided in the flow cell 7, two ends of the flow channel are respectively a liquid inlet 71 and a liquid outlet 72, a mounting hole is provided in the flow cell 7, the mounting hole is communicated with the flow channel, the axis of the mounting hole is perpendicular to the axis direction of the flow channel, and the detection probe 6 is provided in the mounting hole.

When the flow cell 7 is in the horizontal position, the detecting probe 6 is located above the whole flow channel, and the density of bubbles is low, so that bubbles can be gathered at the detecting probe 6, the detecting probe 6 cannot be well infiltrated by liquid, and the ph value is inaccurate to detect. Referring to fig. 4 and 5, after the flow cell 7 is rotatably arranged, the flow cell 7 is rotated by a certain angle, so that the liquid outlet 72 is inclined upwards, and the liquid inlet 71 is inclined downwards, thus, the position height of the detection probe 6 is lower than that of the liquid outlet 72, low-density bubbles can flow upwards along the flow channel, the effect of exhausting the bubbles is achieved, and after the bubbles are exhausted, the detection probe 6 is fully infiltrated by liquid, and the detection result is more accurate.

Further, can be provided with power structure on equipment main part 1, power structure can adopt the deflection motor, and power structure's output shaft and mounting base 2 fixed connection, power structure can drive mounting base 2 and the flow cell 7 on it and take place to rotate, and degree of automation is higher, has saved the manual work.

Some smaller bubbles may be more strongly adsorbed and may not be expelled by merely rotating the flow cell 7 through an angle. Further, the PH detecting device in this embodiment further includes a vibration module mounted on the flow cell mounting portion 22, and the vibration module is disposed at the bottom of the flow cell 7. The flow cell 7 can be vibrated by the vibration module to expel air bubbles at the detection probe 6 within the flow cell 7.

After the deflection motor drives the flow cell 7 to rotate from the horizontal position to the inclined position, the vibration module starts to work and vibrates the flow cell 7, so that tiny bubbles at the detection probe 6 can be discharged, the bubbles at the detection probe 6 can be discharged more thoroughly, and the accuracy of ph value detection is further improved.

The vibration module adopts a common eccentric motor in the market, the eccentric motor is a common motor, a cam is arranged on the head, the gravity center of the cam is not arranged on the rotating shaft of the motor, and when the cam rotates, the cam performs circular motion to generate centrifugal force, and the direction of the centrifugal force continuously changes along with the rotation of the cam, so that the vibration is generated.

According to the PH value detection device provided by the utility model, the bubbles at the detection probe 6 are discharged through rotating the angle of the flow cell 7, so that the detection probe 6 is fully soaked by liquid, and the accuracy of the detection value is improved.

The foregoing is merely illustrative embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the technical scope of the present utility model, and the utility model should be covered. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. The utility model provides a PH value detection device which characterized in that includes flow cell, test probe and mounting base, wherein:

2. The PH level sensing apparatus of claim 1, wherein the mounting base comprises a main body connecting portion and a flow cell mounting portion, the main body connecting portion being mounted on the housing of the device main body, the flow cell mounting portion being perpendicular to the main body connecting portion and being of unitary construction, the flow cell being mounted on the flow cell mounting portion.

3. The PH value detecting device according to claim 2, wherein a waist-shaped hole and a circular hole are formed in the main body connecting portion, two screw holes corresponding to the waist-shaped hole and the circular hole are formed in the main body, the two screw holes respectively pass through the waist-shaped hole and the circular hole through the connecting piece and are connected with the corresponding screw holes, and the mounting base can rotate around the circular hole as a center of a circle to adjust the angle of the flow cell.

4. The PH value detection apparatus according to claim 1, wherein the flow cell is "T" shaped, and a mounting hole for mounting the detection probe is provided in the flow cell, the mounting hole is communicated with the flow channel, and an axis of the mounting hole is perpendicular to an axis direction of the flow channel.

5. The PH value detection apparatus according to claim 1, wherein a power structure is provided on the apparatus main body, an output shaft of the power structure is fixedly connected with the mounting base, and the power structure can drive the mounting base and the flow cell thereon to rotate.

6. The PH detection apparatus as recited in claim 2 further comprising a vibration module by which the flow cell can be vibrated to expel air bubbles at the detection probe within the flow cell.

7. The PH detection apparatus of claim 6, wherein the vibration module comprises an eccentric motor.

8. The PH value detecting apparatus according to claim 6, wherein the vibration module is mounted on the flow cell mounting portion, and the vibration module is provided at a bottom of the flow cell.

9. The PH value detecting apparatus according to claim 3, wherein the mounting base is rotated by an angle of 0 to 90 ° with respect to the circular hole as a center.