Reaction device capable of automatically adjusting pH (Potential of Hydrogen)

Abstract

The utility model discloses an automatic pH regulation reaction device, which belongs to the field of chemical equipment and comprises a reaction container, a top cover is arranged at the top of the reaction container, and an injection port is further arranged on the top cover; a stirring rod is driven by a motor; the pH detection mechanism comprises a pH sensor, an industrial pH meter and a control box; the injector comprises an empty cylinder and a push rod, and the empty cylinder is clamped at the injection port; the vertical driving mechanism is in contact with the push rod and pushes the push rod to move along the empty cylinder; the fixing frame is fixed on the top cover, and the motor is arranged on the fixing frame. According to the automatic pH regulation reaction device disclosed by the utility model, the vertical driving mechanism is in direct contact with the injector, so that the problem of pipeline layout of the acid and alkali liquor storage tank and the flow pump in the use process of the reaction container is avoided, the space of the reaction container is saved, and the reaction container has wider applicability.

Description

Technical Field

[0001] The utility model relates to the field of chemical equipment, in particular to a pH automatic regulating reaction device. Background Art

[0002] pH control is crucial for chemical synthesis. During chemical reactions, acidic or alkaline substances are generated, causing the pH of the solution to tend toward acidic or alkaline. Therefore, it is necessary to add acidic or alkaline liquids to the reaction solution during the reaction to keep the solution within the appropriate pH range, thereby ensuring the normal progress of the reaction.

[0003] In the prior art, for example, the wastewater treatment device with automatic pH adjustment function disclosed in Chinese patent publication number CN217437916U adds acid and alkali solution into the reaction tank for neutralization through a storage tank and a dosing pump. However, adding acid and alkali solution through a storage tank and a dosing pump requires laying pipelines, and the installation position and space of the storage tank need to be considered, so there are many limiting factors during installation and use. Utility Model Content

[0004] The utility model provides a pH automatic regulating reaction device, aiming to solve the problem that the existing regulating device mentioned in the background technology occupies a large space.

[0005] In order to achieve the above purpose, the utility model adopts the following scheme:

[0006] The utility model provides a pH automatic adjustment reaction device, including a reaction container, the reaction container is respectively provided with a feed inlet and a discharge port, the top of the reaction container is provided with a top cover, and the top cover is provided with an injection port. It also includes a stirring mechanism, the stirring mechanism includes a stirring rod and a stirring blade, the stirring blade is fixed to the stirring rod, the stirring rod is driven by a motor, the motor is located above the top cover, and the stirring mechanism extends into the reaction container through the top cover. It also includes a pH detection mechanism, the pH detection mechanism includes a pH sensor, an industrial pH meter, and a control box; the pH sensor is arranged in the reaction container, the industrial pH meter is installed in the control box, and the control box is arranged outside the reaction container. It also includes a syringe, the syringe includes a hollow barrel and a push rod, the acid and alkali solution for adjustment is located in the hollow barrel, the liquid outlet end of the syringe is located in the reaction container, a support plate is arranged on the top of the hollow barrel, and the hollow barrel is clamped in the injection port. It also includes a vertical driving mechanism, which contacts and pushes the push rod to move along the empty cylinder; it also includes a fixing frame, which is fixed on the top cover, and the motor is arranged on the fixing frame.

[0007] Optionally, the vertical driving mechanism includes an air pump and a piston cylinder, and the air pump drives the piston cylinder so that the piston cylinder pushes the push rod to move.

[0008] Furthermore, the vertical drive mechanism also includes a coupling, and the piston cylinder and the push rod are connected through the coupling.

[0009] Furthermore, a flange is provided at the top of the injection port, and a plurality of first circular holes are distributed circumferentially on the flange; the support plate is annular, and a plurality of second circular holes are provided on the support plate, and the positions of the second circular holes correspond to the positions of the first circular holes, and the support plate and the flange are fixed by screws.

[0010] Optionally, the empty barrel and the injection port are both cylinders; the diameter of the empty barrel is comparable to the diameter of the injection port.

[0011] Optionally, the stirring blade is spirally arranged on the stirring rod.

[0012] Furthermore, the reaction device also includes a sleeve, the upper and lower ends of the sleeve are open, and the stirring blade is located in the sleeve; a plurality of connecting frames are provided on the top and bottom outer surfaces of the sleeve, and a plurality of connecting rods pass through the connecting frames and are respectively connected to the top cover and the bottom of the reaction container, so that the sleeve is suspended in the reaction container.

[0013] Optionally, a plurality of connecting pipes are distributed on the sleeve, and the connecting pipes connect the sleeve and the reaction container.

[0014] Optionally, the connecting tube is obliquely arranged on the surface of the sleeve, and the height of the connecting tube on the side away from the sleeve is higher than the height of the connecting tube on the side in contact with the sleeve.

[0015] Compared with the existing technology, the utility model has the following advantages:

[0016] 1. The pH sensor installed in the reaction vessel collects the pH value of the reaction solution and displays the pH value through an industrial pH meter; the control box controls the start-up of the motor in the stirring mechanism and the operation of the vertical drive mechanism, so that the solution in the reaction vessel is stirred and an acid or alkaline solution is added to the reaction solution to balance the pH value in the reaction vessel, thereby completing the monitoring and automatic adjustment of the pH value;

[0017] 2. In the process of adjusting the pH in the reaction container, the push rod is pushed by the vertical driving mechanism to inject the acid or alkali solution in the empty cylinder into the reaction container; the vertical driving mechanism is in direct contact with the syringe, which avoids the pipeline layout problems of the acid and alkali solution storage tank and the flow pump during the use of the reaction container, saves the space of the reaction container, and makes the reaction container more widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Figure 1 It is a schematic diagram of the overall structure of a pH automatic adjustment reaction device provided in an embodiment of the utility model.

[0020] Figure 2 It is a schematic diagram of the reaction vessel structure.

[0021] Figure 3 is a schematic diagram of the top of the reaction vessel.

[0022] Figure 4 It is an exploded diagram of the combined structure of the syringe and the piston cylinder.

[0023] Figure 5 This is a schematic diagram of the reaction vessel structure when the syringe is not installed.

[0024] Figure 6 yes Figure 5 main view.

[0025] Figure 7 yes Figure 6 Middle AA section view.

[0026] Figure 8 It is a schematic diagram of the internal structure of the reaction vessel.

[0027] Fig. 9 yes Figure 5 Top view of the .

[0028] Main component symbols:

[0029] 1. reaction container; 11. top cover; 12. injection port; 121. flange; 122. first circular hole;

[0030] 2. stirring mechanism; 21. motor; 22. stirring rod; 23. stirring blade;

[0031] 3. pH detection mechanism; 31. pH sensor; 32. control box;

[0032] 4. syringe; 41. empty barrel; 411. support plate; 412. second circular hole; 42. push rod;

[0033] 5. Vertical drive mechanism; 51. Air pump; 52. Piston cylinder; 53. Coupling;

[0034] 6. Fixed frame;

[0035] 7. Casing; 71. Connecting frame; 72. Connecting rod; 73. Connecting pipe. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0037] Example

[0038] Refer to the attached drawings of the specification, such as Figure 1-Figure 9 As shown, a pH automatic adjustment reaction device includes a reaction vessel 1, a stirring mechanism 2, a pH detection mechanism 3, a syringe 4, and a vertical drive mechanism 5. The reaction solution reacts in the reaction vessel 1. During the reaction, the pH value of the reaction vessel may change. The pH value of the reaction solution is detected and displayed by the pH detection mechanism 3, and other structures are controlled to add acid or alkali solution into the reaction vessel 1, so that the pH value in the reaction device 1 is maintained within a constant range. The acid or alkali solution used for adjustment is injected into the reaction vessel 1 through the syringe 4, and the injection process of the syringe 4 is controlled by the vertical drive mechanism 5 to achieve the purpose of automatic adjustment of the pH value of the reaction solution. Figure 1 , Figure 7 As shown, the pH detection mechanism 3 includes a pH sensor 31, an industrial pH meter and a control box 32. The pH sensor 31 is arranged inside the reaction container 1, and the industrial pH meter is arranged in the control box 32 and displays the value through the display screen on the control box 32. A processor is arranged in the control box 32 for processing the signal of the pH sensor 31 and controlling the operation of other components in the reaction device. The processor can be a 170AAO92100 Modicon 170INT11003 processor module.

[0039] The top of the reaction container 1 is provided with a top cover 11, on which an inlet for adding reactants into the reaction container 1 is provided, and a discharge port for discharging materials in the reaction container 1 is provided at the bottom of the reaction container. Figure 6 , Fig. 9 As shown, an injection port 12 is also provided on the top cover 11 , and the syringe 4 is mounted on the injection port 12 to achieve installation of the syringe 4 and the reaction container 1 .

[0040] Specifically, Figure 4 As shown, the syringe 4 includes an empty barrel 41 and a push rod 42 that can move in the empty barrel 41, which is similar to a medical syringe. A support plate 411 is extended from the top of the empty barrel 41, and the support plate 411 is annular. When the empty barrel 41 is placed in the injection port 12 along the vertical direction, the support plate 411 can be clamped in the injection port 12 to achieve the positioning and installation of the syringe 4, and prevent the syringe 4 from falling from the injection port 12 into the reaction container 1.

[0041] Further, such as Figure 4As shown, a plurality of second circular holes 412 are circumferentially distributed on the support plate 411. Based on this hollow cylinder 41 structure, as shown in FIG. Figure 5 As shown, a flange 121 is provided on the injection port 12, and a plurality of first circular holes 122 are distributed circumferentially on the flange 121. When the empty cylinder 41 is clamped in the injection port 12, the first circular holes 122 correspond to the second circular holes 412 one by one, and bolts can be passed through the first circular holes 122 and the second circular holes 412, so that the syringe 4 and the injection port 12 are further fixed.

[0042] In addition, the hollow barrel 41 and the injection port 12 are both cylindrical, and the diameter of the hollow barrel 41 is comparable to that of the injection port 12 to ensure that when the syringe 4 is placed along the injection port 12 , the syringe 4 is prevented from swinging or moving laterally in the injection port 12 .

[0043] A rubber plug may be provided at the end of the push rod 42 in the empty cylinder 41 to ensure the sealing between the push rod 42 and the inner wall of the empty cylinder 41. When the push rod 42 is not pushed, the liquid in the empty cylinder 41 will not be automatically discharged from the empty cylinder 41. Graduation lines may be provided on the surface of the empty cylinder 41 to record the amount of acid / alkali solution consumed.

[0044] like Figure 1-Figure 4 As shown, the vertical drive mechanism 5 includes an air pump 51 and a piston cylinder 52, and the air pump 51 drives the telescopic rod in the piston cylinder 52 to extend and retract. During the extension of the telescopic rod in the piston cylinder 52, the push rod 42 in the syringe 4 is pushed forward to inject the acid / alkali solution in the empty cylinder 41 into the reaction container 1. Furthermore, the telescopic rod in the piston cylinder 52 is connected to the push rod 42 through a coupling 53, so that the telescopic rod always drives the movement of the push rod 42 during the extension process, and the push rod 42 can be pulled up during the retraction process of the telescopic rod.

[0045] like Figure 7 , Figure 8 As shown, the stirring mechanism 2 includes a stirring rod 22 and a stirring blade 23. The stirring blade 23 is spirally fixed to the stirring rod 22, and the stirring rod 22 passes through the center of the stirring blade 23. The rotation of the stirring rod 22 is driven by a motor 21, and the motor 21 is arranged on the top cover 11.

[0046] Further, such as Figure 1 As shown, a fixing frame 6 is provided on the top cover 11, and the motor 21 is installed on the fixing frame 6. Specifically, the fixing frame 6 can be formed by overlapping a plurality of metal profiles, and the metal profiles and the top cover 11 can be fixed by screws. In addition, the length of the fixing frame 6 can be extended as needed, so that the air pump 51 and the piston cylinder 52 in the vertical drive mechanism 5 can also be fixed by the fixing frame 6.

[0047] like Figure 7 , Figure 8 As shown, a sleeve 7 is provided on the outside of the stirring blade 23, and both the upper and lower ends of the sleeve 7 are openings. A plurality of connecting frames 71 are circumferentially distributed at the upper and lower ends of the outer surface of the sleeve 7, and a plurality of connecting rods 72 pass through the upper and lower connecting frames 71 respectively and are fixedly connected with the top cover 11 and the bottom of the reaction vessel 1, so that the sleeve 7 is suspended in the reaction vessel 1. A plurality of connecting pipes 73 are also distributed on the surface of the sleeve 7, and the connecting pipe 73 can further expand the liquid exchange between the sleeve 7 and the inside of the reaction vessel 1. Through the arrangement of the sleeve 7, the stirring mechanism 2 only stirs the liquid inside the sleeve 7 during the stirring process, so that the size of the stirring blade 23 required for the stirring mechanism 2 and the power parameters of the motor 21 are reduced, which facilitates the use of the stirring mechanism 2.

[0048] Furthermore, the connecting tube 73 is inclined, and the height of the side away from the sleeve 7 is higher than the height of the side in contact with the sleeve 7. Since the liquid level gradually rises from bottom to top, only the solution in the sleeve 7 that is higher than the connecting tube 73 can be discharged from the connecting tube 73 into the reaction container 1, so that the solution in the sleeve 7 can be more fully stirred.

[0049] Based on the above structure, this application has the following advantages:

[0050] 1. The pH sensor disposed in the reaction vessel 1 collects the pH value of the reaction solution and displays the pH value through an industrial pH meter; the control box 32 controls the start-up of the motor 21 in the stirring mechanism 2 and the operation of the vertical drive mechanism 5, so that the solution in the reaction vessel 1 is stirred and an acid or alkaline solution is added to the reaction solution to balance the pH value in the reaction vessel, thereby completing the monitoring and automatic adjustment of the pH value;

[0051] 2. In the process of adjusting the pH in the reaction container 1, the push rod 42 is pushed by the vertical drive mechanism 5 to inject the acid or alkali solution in the empty cylinder 41 into the reaction container 1; the vertical drive mechanism 5 is in direct contact with the syringe 4, which avoids the pipeline layout problems of the acid and alkali solution storage tank and the flow pump during the use of the reaction container 1, saves the space of the reaction container, and makes the reaction container have a wider applicability.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A pH automatic adjustment reaction device, characterized in that: A reaction container, wherein the reaction container is provided with a feed inlet and a discharge port, respectively, and a top cover is provided on the top of the reaction container, and an injection port is provided on the top cover; A stirring mechanism, the stirring mechanism comprising a stirring rod and a stirring blade, the stirring blade being fixed to the stirring rod; the stirring rod being driven by a motor, the motor being located above the top cover, the stirring mechanism extending through the top cover into the reaction container; A pH detection mechanism, the pH detection mechanism comprising a pH sensor, an industrial pH meter, and a control box; the pH sensor is disposed in the reaction container, the industrial pH meter is installed in the control box, and the control box is disposed outside the reaction container; A syringe, the syringe comprising a hollow barrel and a push rod, the acid and alkali solution for adjustment is located in the hollow barrel, the liquid outlet end of the syringe is located in the reaction container, a support plate is provided on the top of the hollow barrel, and the hollow barrel is clamped at the injection port; A vertical driving mechanism, the vertical driving mechanism contacts and pushes the push rod to move along the empty cylinder; A fixing frame is fixed on the top cover, and the motor is arranged on the fixing frame.

2. A pH automatic adjustment reaction device according to claim 1, characterized in that: The vertical driving mechanism includes an air pump and a piston cylinder. The air pump drives the piston cylinder so that the piston cylinder pushes the push rod to move.

3. A pH automatic adjustment reaction device according to claim 2, characterized in that: The vertical driving mechanism also includes a coupling, and the piston cylinder is connected to the push rod through the coupling.

4. The pH automatic adjustment reaction device according to claim 1, characterized in that: A flange is provided on the top of the injection port, and a plurality of first circular holes are distributed circumferentially on the flange; The support plate is annular and is provided with a plurality of second circular holes, the positions of the second circular holes correspond to the positions of the first circular holes, and the support plate is fixed to the flange by screws.

5. The pH automatic adjustment reaction device according to claim 1, characterized in that: The hollow barrel and the injection port are both cylindrical; the diameter of the hollow barrel is equivalent to the diameter of the injection port.

6. The pH automatic adjustment reaction device according to claim 1, characterized in that: The stirring blade is spirally arranged on the stirring rod.

7. The pH automatic adjustment reaction device according to claim 1, characterized in that: It also includes a sleeve, the upper and lower ends of which are both open, and the stirring blade is located in the sleeve; A plurality of connecting frames are arranged on the outer surfaces of the top and bottom of the sleeve, and a plurality of connecting rods pass through the connecting frames and are respectively connected with the top cover and the bottom of the reaction container, so that the sleeve is suspended in the reaction container.

8. The pH automatic adjustment reaction device according to claim 7, characterized in that: A plurality of connecting pipes are distributed on the sleeve, and the connecting pipes connect the sleeve and the reaction container.

9. A pH automatic adjustment reaction device according to claim 8, characterized in that: The connecting pipe is obliquely arranged on the surface of the sleeve, and the height of the connecting pipe on the side away from the sleeve is higher than the height of the connecting pipe on the side in contact with the sleeve.

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