Acid-base neutralization stirring device for solution

By designing a solution acid-base neutralization and stirring device including a positioning frame, a transmission shaft and a PH probe, the problem of the inability to complete the acid-base neutralization work in the prior art and the inability to detect the pH value in real time is solved, and the rapid neutralization of the cleaning waste liquid and real-time measurement of the pH value is achieved, which significantly shortens the working period.

CN222624528UActive Publication Date: 2025-03-18LIAONING HONGYANHE NUCLEAR POWER
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Patent Information

Application Number
CN202420599770.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-26
Publication Date
2025-03-18
Estimated Expiration
2034-03-26

AI Technical Summary

Technical Problem

After cleaning the online dosing pulse cleaning device of seawater heat exchanger in nuclear power plants, the residual cleaning liquid is acidic and cannot be discharged directly. It needs to be neutralized through stirring to make the pH value reach 6-9. However, the existing technology lacks suitable stirring tools, which leads to the acid-base neutralization work that cannot be completed quickly and accurately, and the pH value cannot be checked in actual condition, resulting in difficulty in controlling the dosing process and taking a long time.

Method used

A solution acid-base neutralization and stirring device is designed, including a positioning frame, a first bearing seat, a transmission shaft, agitating blade and a transmission mechanism. The transmission shaft is driven to rotate and stir the cleaning waste liquid through the transmission mechanism, and the pH value is measured in real time through the PH probe and sensor.

Benefits of technology

It realizes rapid and accurate neutralization and stirring of cleaning waste liquid, can measure the pH value in real time, greatly shortening the overall operating period.

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Abstract

The utility model provides a solution acid-base neutralization stirring device. The solution acid-base neutralization stirring device comprises a positioning frame, a first bearing seat, a transmission shaft, stirring blades and a transmission mechanism, the positioning frame is placed on an opening of a specified container and is provided with a first through hole; the first bearing seat is mounted in the first through hole and is positioned above the opening of the specified container; the transmission shaft is mounted in a preset shaft hole of the first bearing seat, one end penetrates into a specified container, and the other end is positioned outside the specified container; the stirring blades are fixed to the end, penetrating into the designated container, of the transmission shaft and make contact with cleaning waste liquid. The transmission mechanism is fixed on one end of the transmission shaft outside the specified container; when the transmission mechanism is driven to drive the transmission shaft to rotate on the first bearing seat, all the stirring blades can rotate and stir the cleaning waste liquid. According to the utility model, the neutralization stirring of the cleaning waste liquid can be completed, the acid-base neutralization work can be rapidly and accurately completed, the PH value can be actually measured, and the whole operation period is greatly shortened.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tools, in particular to a solution acid-base neutralization stirring device. Background Art

[0002] The online pulse cleaning device for seawater heat exchangers used in nuclear power plants has acidic residual cleaning fluid after cleaning and cannot be discharged directly. It needs to be collected in a designated container, stirred and neutralized to a pH value of 6-9, and then discharged to the waste liquid collection system for subsequent treatment.

[0003] However, there is currently no suitable stirring tool for neutralizing and stirring the cleaning waste liquid, which makes it impossible to quickly and accurately complete the acid-base neutralization work. In addition, the pH value cannot be actually tested, which makes it extremely difficult to control the dosage during the neutralization and dosing process, resulting in a time-consuming three-step operation cycle of dosing, stirring, and sampling and testing.

[0004] Therefore, it is necessary to develop a solution acid-base neutralization stirring device, which can not only complete the neutralization and stirring of the cleaning waste liquid, and quickly and accurately complete the acid-base neutralization work, but also measure the pH value, greatly shortening the overall operation period. Utility Model Content

[0005] The technical problem to be solved by the embodiments of the utility model is to provide a solution acid-base neutralization stirring device, which can not only complete the neutralization and stirring of the cleaning waste liquid and quickly and accurately complete the acid-base neutralization work, but also can measure the pH value, greatly shortening the overall operation period.

[0006] In order to solve the above technical problems, the embodiment of the utility model provides a solution acid-base neutralization stirring device, which cooperates with a designated container filled with cleaning waste liquid, and includes a positioning frame, a first bearing seat, a transmission shaft, a stirring blade and a transmission mechanism; wherein,

[0007] The positioning frame is placed on the opening of the designated container and is provided with a first through hole for mounting the first bearing seat;

[0008] The first bearing seat is installed in the first through hole and is located above the opening of the designated container;

[0009] The transmission shaft is installed in the preset shaft hole of the first bearing seat, one end of the transmission shaft penetrates into the interior of the designated container through the opening of the designated container, and the other end is away from the opening of the designated container and is located outside the designated container;

[0010] There is at least one stirring blade, and each stirring blade is fixed to one end of the transmission shaft that penetrates into the interior of the designated container and contacts with the cleaning waste liquid;

[0011] The transmission mechanism is fixed to one end of the transmission shaft located outside the designated container;

[0012] When the transmission mechanism is driven to drive the transmission shaft to rotate on the first bearing seat, all the stirring blades can rotate and stir the cleaning waste liquid.

[0013] Wherein, the transmission mechanism is an electric module composed of a reduction motor.

[0014] Wherein, the transmission mechanism is a manual crank or a hand wheel.

[0015] Wherein, the length of the transmission shaft is adjustable.

[0016] Among them, it also includes: a second bearing seat, a pH probe and a pH measuring device for real-time display of pH value; wherein,

[0017] The second bearing seat is installed in the second through hole of the positioning frame and is located above the opening of the designated container;

[0018] The pH probe comprises a fixing part, a sensor and a wire; one end of the fixing part is fixed in a preset axial hole of the second bearing seat, and the other end of the fixing part penetrates into the interior of the designated container through the opening of the designated container and is fixedly installed with the sensor; the sensor contacts the cleaning waste liquid and is connected to the pH measuring device through the wire passing through the opening of the designated container;

[0019] The pH measuring device is arranged outside the designated container.

[0020] Among them, it also includes: a visible cover plate for preventing foreign matter from splashing;

[0021] The visible cover plate is disposed above the third through hole formed on the positioning frame and is located above the opening of the designated container.

[0022] Wherein, fan blades are provided on the visible cover plate.

[0023] Among them, adjacent stirring blades are fixed by threading corrosion-resistant nylon ropes.

[0024] Wherein, the positioning frame is a manhole cross positioning frame.

[0025] Wherein, the manhole cross positioning frame is disassembled and installed by bolts.

[0026] Implementing the embodiments of the utility model has the following beneficial effects:

[0027] 1. The solution acid-base neutralization stirring device of the utility model can realize that the transmission shaft is driven to rotate by the transmission mechanism through the rotational cooperation with the first bearing seat, so that all stirring blades can rotate and stir the cleaning waste liquid in the designated container, thereby completing the neutralization and stirring of the cleaning waste liquid, and completing the acid-base neutralization work quickly and accurately;

[0028] 2. The solution acid-base neutralization stirring device of the utility model penetrates into the interior of the designated container through the sensor on the PH probe to contact the cleaning waste liquid in the designated container, and uploads data to the PH measuring device for real-time measurement of the PH value, thereby greatly shortening the overall operation period by measuring the PH value. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, without paying creative labor, other drawings obtained based on these drawings still belong to the scope of the utility model.

[0030] Figure 1 It is a planar structural diagram of a solution acid-base neutralization stirring device provided in an embodiment of the utility model;

[0031] Figure 2 It is a planar structural diagram of another solution acid-base neutralization stirring device provided in an embodiment of the utility model;

[0032] Figure 3 for Figure 1 and Figure 2 A top view of the middle positioning frame;

[0033] Figure 4 for Figure 3 Magnified view of the visible cover. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0035] like Figure 1 As shown in the figure, a solution acid-base neutralization stirring device is provided in an embodiment of the utility model, which cooperates with a designated container T (such as a flask, a solution bottle, etc.) filled with a cleaning waste liquid (not shown), and includes a positioning frame 1, a first bearing seat 2, a transmission shaft 3, a stirring blade 4 and a transmission mechanism 5; wherein,

[0036] The positioning frame 1 is clamped and placed on the opening of the designated container T by means of a buckle or a clamp, and a first through hole 11 for mounting the first bearing seat 2 is opened on the positioning frame 1; wherein the positioning frame 1 is a manhole cross positioning frame or a positioning frame of other structures; if the positioning frame 1 is a manhole cross positioning frame (such as Figure 3 As shown), the manhole cross positioning frame is composed of two plates, which are disassembled and installed by bolts so that the angle can be adjusted;

[0037] The first bearing seat 2 is installed in the first through hole 11 by embedding, and is located above the opening of the designated container T;

[0038] The transmission shaft 3 is installed in a preset shaft hole (not shown) of the first bearing seat 2, one end of which penetrates into the interior of the designated container T through the opening of the designated container T, and the other end is away from the opening of the designated container T and is located outside the designated container T; wherein the length of the transmission shaft 3 is fixed, or the transmission shaft 3 is adjustable (i.e., retractable) to adapt to the use in containers of different depths;

[0039] There is at least one stirring blade 4 (e.g., 3), and each stirring blade 4 is fixed to one end of the transmission shaft 3 that penetrates into the designated container T and contacts with the cleaning waste liquid; at this time, adjacent stirring blades 4 are fixed by threading with corrosion-resistant nylon ropes, so as to prevent the acidic waste liquid from corroding and falling off the transmission shaft 3;

[0040] The transmission mechanism 5 is fixed to one end of the transmission shaft 3 located outside the designated container T; wherein the transmission mechanism 5 is an electric module composed of a reduction motor, or the transmission mechanism 5 is a manual crank or hand wheel;

[0041] When the driving transmission mechanism 5 drives the transmission shaft 3 to rotate the first bearing seat 2, all the stirring blades 4 can rotate and stir the cleaning waste liquid.

[0042] In the embodiment of the utility model, the stirring device further comprises: a visible cover plate 6 (such as Figure 4 As shown), this can prevent external foreign matter from entering the designated container T, and prevent acidic waste liquid from splashing and overflowing during stirring; wherein, the visible cover 6 is made of transparent plastic, and its cover is arranged above the third through hole 13 opened by the positioning frame 1, and is located above the opening of the designated container T. At this time, a fan blade 61 is provided on the visible cover 6, and when the fan blade 61 is opened, it is used to add neutralizing drugs, so that the drug addition and observation operations can be performed at any time during use. It should be noted that the fan blade 61 can be opened or closed by rotating left and right or flipping up and down, and the connection structure relationship can be designed according to specific actual needs.

[0043] like Figure 2As shown, another solution acid-base neutralization stirring device provided in an embodiment of the utility model is matched with a designated container T (such as a flask, a solution bottle, etc.) filled with cleaning waste liquid (not shown), including a positioning frame 1, a first bearing seat 2, a transmission shaft 3, a stirring blade 4, a transmission mechanism 5, a second bearing seat 7, a pH probe 8 and a pH measuring device 9 for real-time display of the pH value; wherein,

[0044] The positioning frame 1 is clamped and placed on the opening of the designated container T by means of a buckle or a clamp, and a first through hole 11 for mounting the first bearing seat 2 is opened on the positioning frame 1; wherein the positioning frame 1 is a manhole cross positioning frame or a positioning frame of other structures; if the positioning frame 1 is a manhole cross positioning frame (such as Figure 3 As shown), the manhole cross positioning frame is composed of two plates, which are disassembled and installed by bolts so that the angle can be adjusted;

[0045] The first bearing seat 2 is installed in the first through hole 11 by embedding, and is located above the opening of the designated container T;

[0046] The transmission shaft 3 is installed in a preset shaft hole (not shown) of the first bearing seat 2, one end of which penetrates into the interior of the designated container T through the opening of the designated container T, and the other end is away from the opening of the designated container T and is located outside the designated container T; wherein the length of the transmission shaft 3 is fixed, or the transmission shaft 3 is adjustable (i.e., retractable) to adapt to the use in containers of different depths;

[0047] There is at least one stirring blade 4 (e.g., 3), and each stirring blade 4 is fixed to one end of the transmission shaft 3 that penetrates into the designated container T and contacts with the cleaning waste liquid; at this time, adjacent stirring blades 4 are fixed by threading with corrosion-resistant nylon ropes, so as to prevent the acidic waste liquid from corroding and falling off the transmission shaft 3;

[0048] The transmission mechanism 5 is fixed to one end of the transmission shaft 3 located outside the designated container T; wherein the transmission mechanism 5 is an electric module composed of a reduction motor, or the transmission mechanism 5 is a manual crank or hand wheel;

[0049] The second bearing seat 7 is installed in the second through hole 12 of the positioning frame 1 by embedding, and is located above the opening of the designated container T;

[0050] The pH probe 8 includes a fixing portion 81, a sensor 82 and a wire 83; wherein one end of the fixing portion 81 is fixed in a preset axial hole (not shown) of the second bearing seat 7, and the other end of the fixing portion 81 penetrates into the interior of the designated container T through the opening of the designated container T and is fixedly mounted with the sensor 82; the sensor 82 contacts the cleaning waste liquid and is connected to the pH measuring device 9 through the wire 83 passing through the opening of the designated container T;

[0051] The pH measuring device 9 is arranged outside the designated container T;

[0052] When the driving transmission mechanism 5 drives the transmission shaft 3 to rotate the first bearing seat 2, all the stirring blades 4 can rotate and stir the cleaning waste liquid.

[0053] In the embodiment of the utility model, the stirring device further comprises: a visible cover plate 6 (such as Figure 4 As shown), this can prevent external foreign matter from entering the designated container T, and prevent acidic waste liquid from splashing and overflowing during stirring; wherein, the visible cover 6 is made of transparent plastic, and its cover is arranged above the third through hole 13 opened by the positioning frame 1, and is located above the opening of the designated container T. At this time, a fan blade 61 is provided on the visible cover 6, and when the fan blade 61 is opened, it is used to add neutralizing drugs, so that the drug addition and observation operations can be performed at any time during use. It should be noted that the fan blade 61 can be opened or closed by rotating left and right or flipping up and down, and the connection structure relationship can be designed according to specific actual needs.

[0054] Implementing the embodiments of the utility model has the following beneficial effects:

[0055] 1. The solution acid-base neutralization stirring device of the utility model can realize that the transmission shaft is driven to rotate by the transmission mechanism through the rotational cooperation with the first bearing seat, so that all stirring blades can rotate and stir the cleaning waste liquid in the designated container, thereby completing the neutralization and stirring of the cleaning waste liquid, and completing the acid-base neutralization work quickly and accurately;

[0056] 2. The solution acid-base neutralization stirring device of the utility model penetrates into the interior of the designated container through the sensor on the PH probe to contact the cleaning waste liquid in the designated container, and uploads data to the PH measuring device for real-time measurement of the PH value, thereby greatly shortening the overall operation period by measuring the PH value.

[0057] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope covered by the present invention.

Claims

1. A solution acid-base neutralization stirring device, which is matched with a designated container filled with cleaning waste liquid, characterized in that: It includes a positioning frame, a first bearing seat, a transmission shaft, a stirring blade and a transmission mechanism; wherein, The positioning frame is placed on the opening of the designated container and is provided with a first through hole for mounting the first bearing seat; The first bearing seat is installed in the first through hole and is located above the opening of the designated container; The transmission shaft is installed in the preset shaft hole of the first bearing seat, one end of the transmission shaft penetrates into the interior of the designated container through the opening of the designated container, and the other end is away from the opening of the designated container and is located outside the designated container; There is at least one stirring blade, and each stirring blade is fixed to one end of the transmission shaft that penetrates into the interior of the designated container and contacts with the cleaning waste liquid; The transmission mechanism is fixed to one end of the transmission shaft located outside the designated container; When the transmission mechanism is driven to drive the transmission shaft to rotate on the first bearing seat, all the stirring blades can rotate and stir the cleaning waste liquid.

2. The solution acid-base neutralization stirring device according to claim 1, characterized in that: The transmission mechanism is an electric module composed of a reduction motor.

3. The solution acid-base neutralization stirring device according to claim 1, characterized in that: The transmission mechanism is a manual crank or a hand wheel.

4. The solution acid-base neutralization stirring device according to claim 1 or 2, characterized in that: The length of the transmission shaft is adjustable.

5. The solution acid-base neutralization stirring device according to claim 4, characterized in that: Also includes: A second bearing seat, a pH probe and a pH measuring device for real-time display of pH value; wherein, The second bearing seat is installed in the second through hole of the positioning frame and is located above the opening of the designated container; The pH probe comprises a fixing part, a sensor and a wire; one end of the fixing part is fixed in a preset axial hole of the second bearing seat, and the other end of the fixing part penetrates into the interior of the designated container through the opening of the designated container and is fixedly installed with the sensor; the sensor contacts the cleaning waste liquid and is connected to the pH measuring device through the wire passing through the opening of the designated container; The pH measuring device is arranged outside the designated container.

6. The solution acid-base neutralization stirring device according to claim 5, characterized in that: Also includes: Visible cover to prevent splashing of foreign matter; The visible cover plate is disposed above the third through hole formed on the positioning frame and is located above the opening of the designated container.

7. The solution acid-base neutralization stirring device according to claim 6, characterized in that: The visible cover plate is provided with fan blades.

8. The solution acid-base neutralization stirring device according to claim 7, characterized in that: Adjacent stirring blades are fixed by threading with corrosion-resistant nylon ropes.

9. The solution acid-base neutralization stirring device according to claim 8, characterized in that: The positioning frame is a manhole cross positioning frame.

10. The solution acid-base neutralization stirring device according to claim 9, characterized in that: The manhole cross positioning frame is disassembled and installed by bolts.