CN219694610U

CN219694610U - PH value measurement sampling device

Info

Publication number: CN219694610U
Application number: CN202320577090.5U
Authority: CN
Inventors: 彭辰炫
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-22
Filing date: 2023-03-22
Publication date: 2023-09-15
Anticipated expiration: 2033-03-22

Abstract

The utility model is suitable for the technical field of pH meter measurement, and provides a pH value measurement sampling device, which comprises a sampling tube, a hollow pontoon and a pH meter probe, wherein the sampling tube comprises a first part and a second part, the bottom end of the first part is communicated with the top end of the second part, a plurality of through holes are formed in the side wall of the first part, the hollow pontoon is arranged in the first part and has a preset gap with the side wall of the first part, the pH meter probe is fixedly arranged at the bottom end of the hollow pontoon and is exposed out of the hollow pontoon, the pH meter probe is electrically connected with a pH meter signal wire, one end of the pH meter signal wire, which is far away from the pH meter probe, extends to the outer side of the first part, the hollow pontoon can float up and down along with a solution to be measured in the first part, when the liquid level in a reaction tank is low or no solution is present, the pH meter probe is soaked in the solution in the second part, the pH meter probe is prevented from being exposed to the air and damaged, and the pH meter probe cannot swing when the stirring is performed through the protection of the sampling tube.

Description

PH value measurement sampling device

Technical Field

The utility model belongs to the technical field of pH measurement, and particularly relates to a pH value measurement sampling device.

Background

The pH meter is an instrument for measuring the pH value of a solution. In many reaction tanks, a pH meter is used by which the pH in the solution is measured. When the pH value of the solution in the reaction tank is measured, a pH meter probe is required to be installed in the reaction tank, and when the reaction tank is stirred, the fluctuation of the liquid level can lead the pH meter probe to swing, so that interference is generated to cause inaccurate measurement; when the liquid level in the reaction tank is low or no solution exists, the liquid level is reduced below the height of the pH meter probe, and the pH meter probe is completely exposed to the air and is easy to damage.

Disclosure of Invention

The embodiment of the utility model provides a pH value measuring and sampling device, which can solve the problems of inaccurate measurement and easy damage of a pH meter probe when the pH meter probe is exposed in the air caused by swinging along with the liquid level.

The embodiment of the utility model provides a pH value measurement sampling device, which comprises a sampling tube, a hollow pontoon and a pH meter probe, wherein the sampling tube comprises a first part and a second part, the bottom end of the first part is communicated with the top end of the second part, a plurality of through holes are formed in the side wall of the first part along the length direction of the first part, the hollow pontoon is arranged in the first part and has a preset gap with the side wall of the first part, the pH meter probe is fixedly arranged at the bottom end of the hollow pontoon and is exposed out of the hollow pontoon, the pH meter probe is electrically connected with a pH meter signal wire, and one end of the pH meter signal wire, which is far away from the pH meter probe, penetrates through the hollow pontoon and extends to the outer side of the sampling tube.

Optionally, the lateral wall middle part of first part is equipped with the bar square groove along the length direction of first part, and the slidable is provided with the anti-rotating rod in the bar square groove, and the one end and the hollow flotation pontoon fixed connection of bar square groove are kept away from to the anti-rotating rod.

Optionally, the first portion coincides with the longitudinal axis of the second portion, the cross-sectional area of the first portion being greater than the cross-sectional area of the second portion, the cross-sectional area of the hollow pontoon being greater than the cross-sectional area of the second portion and less than the cross-sectional area of the first portion.

Optionally, the cross-sectional area of the junction of the bottom end of the first portion and the top end of the second portion decreases gradually from the bottom end of the first portion to the top end of the second portion.

Optionally, the distance from the bottom end of the hollow pontoon to the pH meter probe is less than the length of the second portion.

Optionally, the hollow pontoon is provided with the cable protection pipe in a penetrating way, the cable protection pipe penetrates through the top end and the bottom end of the hollow pontoon, one end, far away from the pH meter probe, of the pH meter signal wire penetrates through the cable protection pipe to extend to the outer side of the first part, and the pH meter probe is fixedly arranged at the bottom end of the cable protection pipe.

Optionally, an end of the pH meter signal line remote from the pH meter probe is electrically connected to a receiving end of an external pH meter.

Optionally, the top of the first part is provided with a mounting assembly, and one end of the pH meter signal wire, which is far away from the pH meter probe, sequentially passes through the hollow pontoon and the mounting assembly and then extends to the outer side of the first part.

Optionally, the installation component includes flange and blind flange, and the top of first part is located to the fixed cover of flange, and the blind flange is installed on the top of flange, and the centre of blind flange is equipped with the signal line through-hole, and the one end that the pH meter signal line kept away from the pH meter probe passes hollow flotation pontoon, flange and signal line through-hole in proper order after extending to the outside of first part.

Optionally, the flange is threadably coupled to a mounting component of the solution reaction tank, and the first portion and the second portion are disposed within the solution reaction tank.

The scheme of the utility model has the following beneficial effects:

in the embodiment of the utility model, a sampling tube is placed in a solution in a reaction tank, the solution flows into a first part and a second part of the sampling tube through a through hole on the side wall of a first part of the sampling tube, when the liquid level of the solution in the tank is increased, a pH meter probe floats up along with a hollow pontoon, and the pH meter probe transmits a signal to an external pH meter through a pH meter signal line so as to measure the pH value of the solution; when the liquid level of the solution in the tank is low or no solution exists, the pH meter probe descends in the second part along with the hollow pontoon, so that the pH meter probe is soaked in the solution in the second part, the damage caused by the exposure of the pH meter probe in the air is avoided, and meanwhile, the pH meter probe is protected by a sampling tube, and when the reaction tank with stirring is used, the pH meter probe cannot swing, and interference is reduced.

Other advantageous effects of the present utility model will be described in detail in the detailed description section which follows.

Drawings

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

FIG. 1 is a schematic diagram of a pH measuring and sampling device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the operation of the pH measuring and sampling device in the reaction tank according to an embodiment of the present utility model.

[ reference numerals description ]

1-sampling tube, 11-first part, 12-second part, 13-through hole, 2-hollow pontoon, 3-pH meter probe, 4-pH meter signal wire, 41-cable protection tube, installation component-5, 51-flange, 52-flange cover, 61-bar square groove, 62-anti-rotating rod.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present utility model. It will be apparent, however, to one skilled in the art that the present utility model may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present utility model with unnecessary detail.

It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It should also be understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

As used in the present description and the appended claims, the term "if" may be interpreted as "when..once" or "in response to a determination" or "in response to detection" depending on the context. Similarly, the phrase "if a determination" or "if a [ described condition or event ] is detected" may be interpreted in the context of meaning "upon determination" or "in response to determination" or "upon detection of a [ described condition or event ]" or "in response to detection of a [ described condition or event ]".

Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.

Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the utility model. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.

The pH measuring and sampling device provided by the utility model is exemplified below with reference to specific examples.

As shown in fig. 1 and 2, the pH measuring and sampling device provided by the utility model comprises a sampling tube 1, a hollow pontoon 2 and a pH meter probe 3, wherein the sampling tube 1 comprises a first part 11 and a second part 11, the bottom end of the first part 11 and the top end of the second part 12 are communicated to form an integrated structure, a plurality of through holes 13 are formed in the side wall of the first part 11 along the length direction of the first part 11, the hollow pontoon 2 is arranged in the first part 11 and has a preset gap (such as 1-2 mm) with the side wall of the first part 11, and the hollow pontoon 2 can float up and down along with a solution to be measured in the first part 11; the pH meter probe 3 is fixedly arranged at the bottom end of the hollow pontoon 2 and is exposed out of the hollow pontoon 2, the pH meter probe 3 is prevented from swinging in the process of floating up and down of the hollow pontoon 2, the pH meter probe 3 is electrically connected with a pH meter signal wire 4, one end of the pH meter signal wire 4, far away from the probe 3, penetrates through the hollow pontoon 2 and extends to the outer side of the sampling tube 1, the signal wire 4 extends to the outer side of the sampling tube 1 and then can be electrically connected with a receiving end of an external pH meter, and in order to prevent the pH meter signal wire 4 from being corroded by solution in a reaction tank, a layer of anti-corrosion film can be sleeved on the surface of the pH meter signal wire 4 or a cable protection tube and other measures are added to protect the pH meter signal wire 4.

In the above embodiment, when measurement is required, the pH meter signal line 4 is electrically connected with the receiving end of the pH meter outside the device, then the sampling tube 1 is fixedly installed in the reaction tank, so that the lower end of the first portion 11 and the second portion 12 are placed in the solution in the reaction tank, at this time, the solution in the reaction tank flows into the first portion 11 and the second portion 12 through the through hole 13 on the side wall of the first portion 11, the solution level in the reaction tank gradually rises, the pH meter probe 3 gradually floats to the level height along with the hollow pontoon 2, and the pH value of the solution can be measured by transmitting a signal through the pH meter signal line; when the solution level of the solution in the reaction tank rises and falls due to reaction or other external reasons, the solution can flow into or out of the first part 11 through the through holes 13, and the pH meter probe 3 rises or falls in the first part 11 along with the hollow pontoon 2 so as to ensure instant measurement; when the liquid level in the reaction tank is very low or the pH value measuring and sampling device provided by the utility model is taken out, the solution in the first part 11 flows out along with the through holes 13 on the side wall of the first part 11, the solution still remains in the second part 12, and the pH meter probe 3 is soaked in the solution in the second part 12, so that the damage of the pH meter probe 3 caused by exposure to air is avoided, meanwhile, the pH meter probe 3 is protected by the sampling tube 1, and the pH meter probe 3 does not swing along with stirring when the pH meter probe 3 is used in the reaction tank with stirring, so that the measurement is disturbed, and the accuracy is higher.

It should be noted that, in this embodiment, the manner of fixing the first portion 11 and the second portion 12 is not the only manner, and the above-mentioned process can be implemented only by ensuring that a portion of the plurality of through holes 13 on the side wall of the first portion 11 is immersed in the solution.

In addition, the device provided by the utility model can also realize flexible sampling and pH value measurement, the lower end of the first part 11 and the second part 12 are directly placed into the solution in the reaction tank, the solution in the reaction tank flows into the first part 11 and the second part 12 through the through holes 13 on the side wall of the first part 11, then the lower end of the first part 11 and the second part 12 are taken out from the reaction tank, at the moment, the solution in the first part 11 flows out along with the through holes 13 on the side wall of the first part 11, the solution still remains in the second part 12, the sampling is carried out through the second part 12, and then the pH meter signal line 4 is electrically connected with the receiving end of the pH meter outside the device, so that the pH value measurement work can be carried out.

As shown in fig. 1 and 2, a bar-shaped square groove 61 is formed in the middle of the side wall of the first portion 11 along the length direction of the first portion 11, an anti-rotating rod 62 is slidably arranged in the bar-shaped square groove 61, and one end, away from the bar-shaped square groove 61, of the anti-rotating rod 62 is fixedly connected with the hollow pontoon 2.

In the above embodiment, when the hollow pontoon 2 floats up and down in the first portion 11 along with the solution in the reaction tank, the hollow pontoon 2 can drive the anti-rotation lever 62 to slide up and down in the bar-shaped square groove 61, and the combination of the anti-rotation lever 62 and the bar-shaped square groove 61 can restrict the hollow pontoon 2 from rotating laterally, so that the hollow pontoon 2 does not rotate along with the rotation of the solution when stirring operation is performed in the reaction tank, thereby disturbing the measurement.

As shown in fig. 1 and 2, the first portion 11 coincides with the longitudinal axis of the second portion 12, the cross-sectional area of the first portion 11 being larger than the cross-sectional area of the second portion 12, the cross-sectional area of the hollow pontoon 2 being larger than the cross-sectional area of the second portion 12 and smaller than the cross-sectional area of the first portion 11.

In the above-described embodiment, the cross-sectional area of the hollow pontoon 2 is between the cross-sectional area of the first portion 11 and the cross-sectional area of the second portion 12, so that the hollow pontoon 2 can float up and down with the solution only in the first portion 11 without restricting the movable region thereof by adding a stopper member between the first portion 11 and the second portion 12, thereby making the overall structure simple.

Meanwhile, in this embodiment, the cross-sectional areas of the first portion 11 and the second portion 12 may be the same, and the top end of the first portion 11 and the bottom end of the second portion 12 are communicated to form an integral structure, the hollow pontoon 2 is installed in the first portion 11, and a stopper is disposed at the connection position between the first portion 11 and the second portion 12, which can also achieve the above-mentioned process.

As shown in fig. 1 and 2, the cross-sectional area of the connection between the bottom end of the first portion 11 and the top end of the second portion 12 gradually decreases from the bottom end of the first portion 11 to the top end of the second portion 12, and this structure can prevent the pH meter probe 3 located at the lower end of the hollow pontoon 2 from touching the bottom end of the first portion 11 when the hollow pontoon 2 drives the pH meter probe 3 to descend due to the excessively low solution level, thereby damaging the pH meter probe 3.

As shown in fig. 1 and 2, the distance from the bottom end of the hollow pontoon 2 to the pH meter probe 3 is smaller than the length of the second portion 12, and this structural feature allows the pH meter probe 3 to be suspended above the bottom end of the second portion 12 at very low liquid levels, avoiding the problem of the pH meter probe 3 being in direct contact with the bottom end of the second portion 12, thereby causing measurement readiness and damage to the pH meter probe 3.

As shown in fig. 1 and 2, the hollow pontoon 2 is inserted with a cable protection tube 41, the cable protection tube 41 penetrates through the top end and the bottom end of the hollow pontoon 2, one end, far away from the pH meter probe 3, of the pH meter signal wire 4 penetrates through the cable protection tube 41 to extend to the outer side of the first portion 11, the pH meter probe 3 is fixedly mounted at the bottom end of the cable protection tube 41, and the cable protection tube 41 can prevent the pH meter signal wire 4 from being corroded by the solution in the reaction tank.

As shown in fig. 1 and 2, the end of the pH meter signal line 4 away from the pH meter probe 3 is electrically connected to the receiving end of an external pH meter, and measurement of the pH value is performed by the pH meter.

As shown in fig. 1 and 2, the top end of the first portion 11 is provided with a mounting assembly 5, and one end of the pH meter signal line 4, which is far away from the pH meter probe 3, sequentially passes through the hollow pontoon 2 and the mounting assembly 5, and then extends to the outer side of the first portion 11.

As shown in fig. 1 and 2, the mounting assembly 5 includes a flange 51 and a flange cover 52, the flange 51 is fixedly sleeved on the top end of the first portion 11, the flange cover 52 is mounted on the top end of the flange, a signal line through hole is formed in the middle of the flange cover 52, and one end of the pH meter signal line 4, which is far away from the pH meter probe 3, sequentially passes through the hollow pontoon 2, the flange 51 and the signal line through hole and then extends to the outer side of the first portion 11.

As shown in fig. 1 and 2, the flange 51 is screw-coupled to a mounting part of the solution reaction tank, and the first portion 11 and the second portion 12 are placed in the solution reaction tank.

In the above-described embodiment, the first portion 11 of the sampling tube 1 may be fixed to the installation site of the reaction vessel by the flange 51 and the flange cover 52, and the lower end of the first portion 11 and the second portion 12 may be placed in the solution reaction vessel, and then the above-described operation may be performed to measure the pH value of the solution in the reaction vessel.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a sampling device is measured to pH value, its characterized in that includes sampling tube (1), hollow flotation pontoon (2) and pH meter probe (3), sampling tube (1) include first part (11) and second part (12), the bottom of first part (11) with the top intercommunication of second part (12), follow on the lateral wall of first part (11) length direction of first part (11) is equipped with a plurality of through-holes (13), hollow flotation pontoon (2) set up in first part (11) and with there is the clearance in the lateral wall of first part (11), pH meter probe (3) are fixed to be set up the bottom of hollow flotation pontoon (2) and expose in hollow flotation pontoon (2), pH meter probe (3) electricity is connected with pH meter signal line (4), pH meter signal line (4) keep away from the one end of pH meter probe (3) is worn hollow flotation pontoon (2) extends to the outside of sampling tube 1.

2. The pH measuring and sampling device according to claim 1, wherein a bar-shaped square groove (61) is provided in the middle of the side wall of the first portion (11) along the length direction of the first portion (11), an anti-rotation rod (62) is slidably provided in the bar-shaped square groove (61), and one end of the anti-rotation rod (62) away from the bar-shaped square groove (61) is fixedly connected with the hollow pontoon (2).

3. The pH measuring sampling device according to claim 1, wherein the first portion (11) coincides with the longitudinal axis of the second portion (12), the cross-sectional area of the first portion (11) being larger than the cross-sectional area of the second portion (12), the cross-sectional area of the hollow pontoon (2) being larger than the cross-sectional area of the second portion (12) and smaller than the cross-sectional area of the first portion (11).

4. A pH measuring sampling device according to claim 3, wherein the cross-sectional area of the junction of the bottom end of the first portion (11) and the top end of the second portion (12) decreases gradually from the bottom end of the first portion (11) to the top end of the second portion (12).

5. The pH measuring sampling device according to claim 1, wherein the distance from the bottom end of the hollow pontoon (2) to the pH meter probe (3) is smaller than the length of the second portion (12).

6. The pH measurement sampling device according to claim 1 or 5, wherein a cable protection tube (41) is inserted in the hollow pontoon (2), the cable protection tube (41) penetrates through the top end and the bottom end of the hollow pontoon (2), one end of the pH meter signal wire (4) far away from the pH meter probe (3) penetrates through the cable protection tube (41) to extend to the outer side of the first portion (11), and the pH meter probe (3) is fixedly mounted at the bottom end of the cable protection tube (41).

7. The pH measurement sampling device according to claim 1, wherein the end of the pH meter signal line (4) remote from the pH meter probe (3) is electrically connected to a receiving end of an external pH meter.

8. The pH measuring and sampling device according to claim 1, wherein the top end of the first portion (11) is provided with a mounting assembly (5), and the end of the pH meter signal line (4) away from the pH meter probe (3) sequentially passes through the hollow pontoon (2) and the mounting assembly (5) and then extends to the outside of the first portion (11).

9. The pH measurement sampling device according to claim 8, wherein the mounting assembly (5) comprises a flange (51) and a flange cover (52), the flange (51) is fixedly sleeved at the top end of the first portion (11), the flange cover (52) is mounted at the top end of the flange (51), a signal line through hole is formed in the middle of the flange cover (52), and one end of the pH meter signal line (4) far away from the pH meter probe (3) sequentially passes through the hollow pontoon (2), the flange (51) and the signal line through hole and then extends to the outer side of the first portion (11).

10. The pH measuring sampling device according to claim 9, wherein the flange (51) is screwed onto a mounting part of a solution reaction tank, the first portion (11) and the second portion (12) being placed in the solution reaction tank.