Monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination

Abstract

The utility model relates to a monitoring and adjusting device, in particular to a monitoring and adjusting device for a sulfanilic acid buffer solution in total alkali determination. The monitoring and adjusting device for the sulfanilic acid buffer solution in the total alkali determination comprises a sulfanilic acid buffer solution kit, a moving mechanism, a PH induction electrode and the like, the moving mechanism is arranged on one side of the sulfanilic acid buffer solution kit, the PH induction electrode is fixedly connected to the moving mechanism, and the PH induction electrode is fixedly connected to the other side of the sulfanilic acid buffer solution kit. The PH sensing electrode is positioned above the inner bottom of the aminobenzene sulfonic acid buffer solution kit by three to eight centimeters. According to the utility model, a signal is sent to the control panel through the PH sensing electrode, and then an acidic or alkaline solution is conveyed into the aminobenzene sulfonic acid buffer solution kit according to the PH value, so that the PH value of the aminobenzene sulfonic acid buffer solution is adjusted, and the influence of the abnormal PH value of the aminobenzene sulfonic acid buffer solution on a detection result is reduced.

Description

Technical Field

[0001] The utility model relates to a monitoring and adjusting device, in particular to a monitoring and adjusting device for sulfanilic acid buffer solution in total alkalinity determination. Background Art

[0002] In the processes of tobacco processing, cigarette manufacturing and reconstituted tobacco production, total plant alkaloids are one of the chemical components that have the greatest impact on sensory quality. In the analysis and detection of tobacco and tobacco products, the pH of sulfanilic acid buffer solution has a great influence on the detection accuracy of the solution system, often resulting in a large deviation of the detection result from the true value.

[0003] Therefore, designing a monitoring and adjusting device for sulfanilic acid buffer solution in total alkalinity determination to stabilize it within a set range (such as pH 7.5 - 11) can solve the detection error caused by the instability of sulfanilic acid buffer solution and improve the detection accuracy of total plant alkaloids in tobacco and tobacco products. Summary of the Utility Model

[0004] In order to overcome the defect that the pH value of sulfanilic acid buffer solution affects the detection accuracy and causes the detection result to deviate from the true value, the utility model provides a monitoring and adjusting device for sulfanilic acid buffer solution in total alkalinity determination.

[0005] The technical solution is: a monitoring and adjusting device for sulfanilic acid buffer solution in total alkalinity determination, including a sulfanilic acid buffer solution kit, a pH sensing electrode, an acid-base kit, a pump, a delivery pipe, a control panel and a moving mechanism. There is a moving mechanism on one side of the sulfanilic acid buffer solution kit. A pH sensing electrode is fixedly connected to the moving mechanism. The pH sensing electrode is located 3 to 8 centimeters above the inner bottom of the sulfanilic acid buffer solution kit. Two independent acid-base kits are fixedly connected to the other side of the sulfanilic acid buffer solution kit. Pumps are fixedly connected to both of the two acid-base kits. Delivery pipes are fixedly connected to both of the two pumps. The other ends of the two delivery pipes are both located above the sulfanilic acid buffer solution kit. A control panel is fixedly connected to one side of the acid-base kit. The pH sensing electrode and the pump are both electrically connected to the control panel.

[0006] Further, the moving mechanism further includes a moving bracket and a slide rail. A slide rail is fixedly connected to one side of the sulfanilic acid buffer solution kit. The moving bracket is slidably connected in the slide rail. The pH sensing electrode is fixedly connected to the moving bracket.

[0007] Further, it further includes a motor and a stirring rod. A motor is fixedly connected inside the sulfanilic acid buffer solution kit. The motor is electrically connected to the control panel. A stirring rod is fixedly connected to the output shaft of the motor. The stirring rod is located inside the sulfanilic acid buffer solution kit.

[0008] Further, there is a liquid outlet on one side of the sulfanilic acid buffer solution kit.

[0009] Furthermore, the sulfanilic acid buffer kit, the stirring rod, the acid-base kit, and the delivery tube are all made of corrosion-resistant materials.

[0010] Furthermore, lubricating oil is applied between the slide rail and the moving bracket.

[0011] The beneficial effects are as follows: 1. In the present utility model, the PH sensing electrode sends a signal to the control panel, and then acidic or alkaline solutions are delivered into the sulfanilic acid buffer kit according to the level of the PH value, so as to adjust the PH value of the sulfanilic acid buffer and reduce the influence on the test results caused by abnormal PH value of the sulfanilic acid buffer.

[0012] 2. In the present utility model, the motor starts the stirring rod, and the stirring rod drives the sulfanilic acid buffer and the acid-base solution to rotate and blend, accelerating the blending of the liquids and reducing the test errors caused by uneven blending of the liquids. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structure diagram of the present utility model.

[0014] Figure 2 It is a partial cross-sectional view of the present utility model.

[0015] Figure 3 It is a three-dimensional structure cross-sectional view of components such as the sulfanilic acid buffer kit, the motor, and the stirring rod of the present utility model.

[0016] Figure 4 It is a three-dimensional structure cross-sectional view of components such as the acid-base kit, the pump, and the delivery tube of the present utility model.

[0017] Figure 5 It is a three-dimensional structure diagram of components such as the moving bracket, the PH sensing electrode, and the slide rail of the present utility model.

[0018] The markings of each component in the drawings are as follows: 1: sulfanilic acid buffer kit, 2: motor, 3: stirring rod, 4: moving bracket, 5: PH sensing electrode, 6: slide rail, 7: acid-base kit, 8: pump, 9: delivery tube, 10: liquid outlet, 11: control panel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following further illustrates the above solutions with specific embodiments. It should be understood that these embodiments are for illustrating the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually those in conventional experiments.

[0020] Example: A monitoring and regulating device for sulfanilic acid buffer solution in total alkali determination, as follows Figures 1-5 shown, which includes a sulfanilic acid buffer solution kit 1, a pH sensing electrode 5, an acid-base kit 7, a pump 8, a delivery pipe 9, a control panel 11 and a moving mechanism. A moving mechanism is provided on the right side of the sulfanilic acid buffer solution kit 1. The upper part of the moving mechanism is bolted with a pH sensing electrode 5. The pH sensing electrode 5 is located 5 cm above the inner bottom of the sulfanilic acid buffer solution kit 1. Two independent acid-base kits 7 are welded on the left side of the sulfanilic acid buffer solution kit 1. The centers of the inner bottoms of the two acid-base kits 7 are bolted with pumps 8 respectively. The tops of the two pumps 8 are welded with delivery pipes 9. The other ends of the two delivery pipes 9 are both located above the sulfanilic acid buffer solution kit 1. The front side of the acid-base kit 7 is bolted with a control panel 11. The pH sensing electrode 5 and the pump 8 are both electrically connected to the control panel 11. The sulfanilic acid buffer solution kit 1, the acid-base kit 7 and the delivery pipe 9 are all made of corrosion-resistant materials, such as iron-based alloys and nickel-based alloys, etc.

[0021] As Figure 1 shown, there is a liquid outlet 10 left at the lower right part of the sulfanilic acid buffer solution kit 1.

[0022] When it is necessary to adjust and monitor the pH value of the sulfanilic acid buffer solution, it is necessary to first block the liquid outlet 10 on the right side of the sulfanilic acid buffer solution kit 1 with a corrosion-resistant rubber stopper. Then pour the sulfanilic acid buffer solution into the sulfanilic acid buffer solution kit 1 until the sulfanilic acid buffer solution submerges the middle part of the pH sensing electrode 5. Then pour the acidic solution into one of the acid-base kits 7, and pour the alkaline solution into the other acid-base kit 7. Since the sensing end at the bottom of the pH sensing electrode 5 is always located in the sulfanilic acid buffer solution, the pH sensing electrode 5 will detect the pH value of the sulfanilic acid buffer solution in real time. When the detected pH value is lower than the set range, a signal will be sent to the control panel 11, and the control panel 11 will start the pump 8 in the acid-base kit 7 containing the alkaline solution. The pump 8 will pump the alkaline solution from the acid-base kit 7 containing the alkaline solution into the delivery pipe 9, and then send the alkaline solution to the sulfanilic acid buffer solution kit 1 through the delivery pipe 9 to reduce the acidity of the sulfanilic acid buffer solution through liquid fusion. When it reaches the set range, the pH sensing electrode 5 will send a signal to the control panel 11, and the control panel 11 will turn off the pump 8 in the acid-base kit 7 containing the alkaline solution. When the detected pH value is higher than the set range, a signal will be sent to the control panel 11, and the control panel 11 will start the pump 8 in the acid-base kit 7 containing the acidic solution. The pump 8 will pump the acidic solution from the acid-base kit 7 containing the acidic solution into the delivery pipe 9, and then send the acidic solution to the sulfanilic acid buffer solution kit 1 through the delivery pipe 9 to reduce the alkalinity of the sulfanilic acid buffer solution through liquid fusion. When it reaches the set range, the pH sensing electrode 5 will send a signal to the control panel 11, and the control panel 11 will turn off the pump 8 in the acid-base kit 7 containing the acidic solution, so as to keep the pH value of the sulfanilic acid buffer solution always within the set range.

[0023] When it is necessary to clean the sulfanilic acid buffer solution kit 1, it is necessary to remove the rubber stopper on the liquid outlet 10. At this time, the liquid outlet 10 is no longer blocked, and the sulfanilic acid buffer solution will flow out from the liquid outlet 10. When all the sulfanilic acid buffer solution in the sulfanilic acid buffer solution kit 1 has flowed out, its interior can be cleaned, and after cleaning, the liquid outlet 10 can be blocked again.

[0024] As Figure 2 and Figure 3 shown, it also includes a motor 2 and a stirring rod 3. The motor 2 is connected to the bottom of the sulfanilic acid buffer solution kit 1 by bolts. The motor 2 is electrically connected to the control panel 11. A stirring rod 3 is welded on the output shaft of the motor 2. The stirring rod 3 is located at the bottom of the sulfanilic acid buffer solution kit 1. The stirring rod 3 is made of corrosion-resistant materials, such as iron-based alloys and nickel-based alloys.

[0025] To avoid the situation where the sulfanilic acid buffer solution and the acid-base solution added into the sulfanilic acid buffer solution kit 1 cannot be fused in a short time, which may affect the detection accuracy of the pH value, at this time, the motor 2 needs to be started through the control panel 11. The output shaft of the motor 2 drives the stirring rod 3 to rotate, and the stirring rod 3 drives the sulfanilic acid buffer solution and the acid-base solution in the sulfanilic acid buffer solution kit 1 to rotate together, accelerating the fusion of the sulfanilic acid buffer solution and the acid-base solution.

[0026] As Figures 1-5 shown, the moving mechanism further includes a moving bracket 4 and a slide rail 6. The slide rail 6 is welded to the right side of the sulfanilic acid buffer solution kit 1. The moving bracket 4 is slidably connected back and forth in the slide rail 6. Lubricating oil is applied between the slide rail 6 and the moving bracket 4. The pH sensing electrode 5 is connected to the upper left end of the moving bracket 4 by bolts.

[0027] To further avoid the situation where the sulfanilic acid buffer solution and the acid-base solution added into the sulfanilic acid buffer solution kit 1 cannot be fused in a short time, which may affect the detection accuracy of the pH value, when detecting the pH value, it is necessary to push the moving bracket 4 back and forth on the slide rail 6 by hand. The moving bracket 4 drives the pH sensing electrode 5 to move back and forth inside, so as to detect the pH value at each position in the sulfanilic acid buffer solution kit 1.

[0028] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present invention. Those skilled in the art will understand that the variant forms of the present invention will be included within the scope of the claims herein.

Claims

1. A monitoring and regulating device for sulfanilic acid buffer solution in the determination of total alkalinity, characterized in that: It includes an aminobenzenesulfonic acid buffer kit (1), a pH sensing electrode (5), an acid-base kit (7), a pump (8), a delivery tube (9), a control panel (11) and a moving mechanism. A moving mechanism is provided on one side of the aminobenzenesulfonic acid buffer kit (1), and a pH sensing electrode (5) is fixedly connected to the moving mechanism. The pH sensing electrode (5) is located 3 to 8 centimeters above the inner bottom of the aminobenzenesulfonic acid buffer kit (1). Two independent acid-base kits (7) are fixedly connected to the other side of the aminobenzenesulfonic acid buffer kit (1). Pumps (8) are fixedly connected inside both of the two acid-base kits (7). Delivery tubes (9) are fixedly connected to both of the two pumps (8). The other ends of the two delivery tubes (9) are both located above the aminobenzenesulfonic acid buffer kit (1). A control panel (11) is fixedly connected to one side of the acid-base kit (7). The pH sensing electrode (5) and the pump (8) are both electrically connected to the control panel (11).

2. The monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination according to claim 1, characterized in that: The moving mechanism further includes a moving bracket (4) and a slide rail (6). A slide rail (6) is fixedly connected to one side of the aminobenzenesulfonic acid buffer kit (1). The moving bracket (4) is slidably connected inside the slide rail (6). The pH sensing electrode (5) is fixedly connected to the moving bracket (4).

3. The monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination according to claim 2, wherein: It further includes a motor (2) and a stirring rod (3). A motor (2) is fixedly connected inside the aminobenzenesulfonic acid buffer kit (1). The motor (2) is electrically connected to the control panel (11). A stirring rod (3) is fixedly connected to the output shaft of the motor (2). The stirring rod (3) is located inside the aminobenzenesulfonic acid buffer kit (1).

4. The monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination according to claim 3, wherein: An outlet (10) is left on one side of the aminobenzenesulfonic acid buffer kit (1).

5. A monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination according to claim 4, characterized in that: The aminobenzenesulfonic acid buffer kit (1), the stirring rod (3), the acid-base kit (7) and the delivery tube (9) are all made of corrosion-resistant materials.

6. The monitoring and adjusting device for sulfanilic acid buffer solution in total alkali determination according to claim 5, characterized in that: Lubricating oil is applied between the slide rail (6) and the moving bracket (4).

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