A liquid sodium hydroxide deterioration detection device

Abstract

The present invention discloses a liquid sodium hydroxide deterioration detection device, including a bottom plate. It is characterized in that a detection disc assembly is provided on the bottom plate. A rotating shaft is provided on one side of the bottom plate. A lifting shaft is telescopically provided on the rotating shaft. A horizontal sliding rod is fixed in the lifting shaft. A slider assembly is slidably provided in the sliding rod. A liquid extraction tube is provided at the bottom of the slider assembly. A CCD detector, a drain pipe, and an injection rod are respectively provided clockwise starting from the rotating shaft on the periphery of the detection disc assembly on the bottom plate. Compared with the prior art, in the present invention, when the liquid extraction tube is aligned with different detection holes, the volume of the sample that can be retained in the liquid extraction tube matches the size of the detection holes.

Description

Technical Field

[0001] The present invention relates to the technical field of reagent detection, and specifically to an equipment for detecting the deterioration of liquid sodium hydroxide. Background Technique

[0002] Sodium hydroxide reagent is prone to react with carbon dioxide in the air during storage to form sodium carbonate and deteriorate. Therefore, it is necessary to detect the deterioration when using sodium hydroxide reagent. The detection of sodium hydroxide usually uses a test tube to take out a part of the sodium hydroxide reagent and add sodium chloride to observe whether a precipitate is formed. The process requires the use of a variety of experimental equipment, and the detection efficiency is low. When there is less precipitate in the reagent, it is necessary to subjectively judge the turbidity of the reagent, and there is no unified standard. Moreover, it is difficult to control the amount of sample sucked through the test tube, and the sample consumption is large, resulting in waste of reagents.

[0003] Therefore, it is necessary to provide an equipment for detecting the deterioration of liquid sodium hydroxide to solve the problems raised in the above background technique. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: An equipment for detecting the deterioration of liquid sodium hydroxide, including a bottom plate. It is characterized in that a detection disc assembly is provided on the bottom plate, a rotating shaft is provided on one side of the bottom plate, a lifting shaft is telescopically provided on the rotating shaft, a horizontal sliding rod is fixed in the lifting shaft, a slider assembly is slidably provided in the sliding rod, a liquid extraction tube is provided at the bottom of the slider assembly, and a CCD detector, a drain pipe, and an injection rod are respectively provided clockwise around the rotating shaft on the periphery of the detection disc assembly on the bottom plate.

[0005] The detection disc assembly includes a tray, the tray is fixed on the bottom plate, a turntable is servo-rotatably embedded in the tray, multiple circles of detection holes are circumferentially distributed in the turntable, and the volume of the detection holes decreases sequentially from the inside to the outside along the radial direction of the turntable.

[0006] A transparent cover plate is covered on the turntable, the cover plate is fixed to the tray, a dropping groove is opened in the cover plate along the direction of the rotating shaft, a discharge groove is opened in the tray along the direction of the drain pipe, the discharge groove communicates with the drain pipe, an injection groove is opened in the cover plate along the direction of the injection rod, the injection rod can slide along the injection groove, and a through hole is opened in the injection rod that can be aligned with one of the detection holes on the injection groove.

[0007] The slider assembly includes a housing, the housing slidably penetrates through the sliding rod, a screw rod parallel to the sliding rod is also fixed on the lifting shaft, the screw rod slidably penetrates through the housing, a nut bevel gear is rotatably provided in the housing, the inner part of the nut bevel gear is threadedly connected to the screw rod, a driving bevel gear is also rotatably provided in the housing, and the driving bevel gear is also fixed with a knob that penetrates to the outside of the housing.

[0008] A sliding sleeve is provided below the outer shell and can slide up and down. The liquid extraction tube is fixedly penetrated in the sliding sleeve. A connecting rod parallel to the sliding rod is fixed in the rotating shaft. The connecting rod slidably penetrates the sliding sleeve. A plug concentric with the liquid extraction tube is further provided in the outer shell.

[0009] A driven bevel gear is rotatably provided in the outer shell. The driven bevel gear meshes with the nut bevel gear. A turbine is coaxially fixed to the driven bevel gear. A worm is fixed to the plug. The upper end of the worm slidably penetrates the outer shell and the worm meshes with the turbine.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] In the present invention, by detecting the transparency through the CCD detector, it can detect whether the sample deteriorates, can select different detection holes according to the concentration of the sample, saves the usage amount of the sample, avoids waste, and when the liquid extraction tube is aligned with different detection holes, the volume of the sample that can be retained in the liquid extraction tube matches the size of the detection hole. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of a liquid sodium hydroxide deterioration detection device;

[0013] Figure 2 It is a schematic structural diagram of;

[0014] Figure 3 It is a schematic structural diagram of;

[0015] In the figure: 1, bottom plate; 2, detection disc assembly; 21, tray; 22, turntable; 23, detection hole; 24, cover plate; 25, dripping groove; 26, injection groove; 27, discharge groove; 3, rotating shaft; 31, connecting rod; 4, lifting shaft; 41, sliding rod; 42, screw; 5, slider assembly; 51, outer shell; 52, driving bevel gear; 53, knob; 54, nut bevel gear; 55, driven bevel gear; 56, turbine; 57, worm; 58, sliding sleeve; 59, plug; 6, liquid extraction tube; 7, CCD detector; 8, drain pipe; 9, injection rod. Detailed Embodiment

[0016] Please refer to Figure 1, in an embodiment of the present invention, a liquid sodium hydroxide deterioration detection device includes a bottom plate 1. A detection disc assembly 2 is provided on the bottom plate 1. A rotating shaft 3 is provided on one side of the bottom plate 1. A lifting shaft 4 is telescopically provided on the rotating shaft 3. A horizontal sliding rod 41 is fixed in the lifting shaft 4. A slider assembly 5 is slidably provided in the sliding rod 41. A liquid extraction pipe 6 is provided at the bottom of the slider assembly 5. A CCD detector 7, a drain pipe 8, and an injection rod 9 are respectively provided on the periphery of the detection disc assembly 2 on the bottom plate 1 in a clockwise direction starting from the rotating shaft 3.

[0017] Please refer to Figure 2 , in this embodiment, the detection disc assembly 2 includes a tray 21. The tray 21 is fixed on the bottom plate 1. A turntable 22 is servo-rotatably embedded in the tray 21. Multiple circles of detection holes 23 are circumferentially distributed in the turntable 22, and the volume of the detection holes 23 decreases sequentially from the inside to the outside along the radial direction of the turntable 22. That is to say, by sliding the slider assembly 5 to different positions, the liquid extraction pipe 6 is aligned with different-sized detection holes 23, so that different detection holes 23 can be selected according to the concentration of the sample, saving the usage amount of the sample and avoiding waste.

[0018] In this embodiment, a transparent cover plate 24 is covered on the turntable 22. The cover plate 24 is fixed to the tray 21. A dripping groove 25 is provided on the cover plate 24 along the direction of the rotating shaft 3. A discharge groove 27 is provided on the tray 21 along the direction of the drain pipe 8. The discharge groove 27 communicates with the drain pipe 8. An injection groove 26 is provided on the cover plate 24 along the direction of the injection rod 9. The injection rod 9 can slide along the injection groove 26, and a through hole is provided in the injection rod 9 that can align with one of the detection holes 23 on the injection groove 26. That is to say, by sliding the injection rod 9, the detection liquid in the injection rod 9 can be injected into one of the detection holes 23. When the detection hole 23 rotates to the position of the rotating shaft 3, the sample is dropped into the detection liquid through the liquid extraction pipe 6. When the detection hole 23 rotates to the position of the CCD detector 7, whether the sample deteriorates is detected by detecting its transparency through the CCD detector 7. When the detection hole 23 rotates to the position of the discharge groove 27, the solution therein is discharged into the drain pipe 8, thereby realizing the detection of sample deterioration.

[0019] Please refer to Figure 3, in this embodiment, the slider assembly 5 includes a housing 51. The housing 51 is slidably penetrated in the sliding rod 41. A screw rod 42 parallel to the sliding rod 41 is further fixed on the lifting shaft 4. The screw rod 42 is slidably penetrated through the housing 51. A nut bevel gear 54 is rotatably provided inside the housing 51. The inside of the nut bevel gear 54 is threadedly connected to the screw rod 42. A driving bevel gear 52 is also rotatably provided inside the housing 51. The driving bevel gear 52 is further fixed with a knob 53 penetrating outside the housing 51. That is to say, by rotating the knob 53, the nut bevel gear 54 can be driven to rotate, thereby driving the housing 51 to slide along the screw rod 42 to change the position of the liquid extraction tube 6 so that it can be aligned with one of the detection holes 23.

[0020] In this embodiment, a sliding sleeve 58 is slidably provided up and down below the housing 51. The liquid extraction tube 6 is fixedly penetrated in the sliding sleeve 58. A connecting rod 31 parallel to the sliding rod 41 is fixed in the rotating shaft 3. The connecting rod 31 is slidably penetrated through the sliding sleeve 58. A plug 59 concentric with the liquid extraction tube 6 is further provided inside the housing 51. That is to say, when the lifting shaft 4 moves up and down, the sliding sleeve 58 slides up and down relative to the housing 51. When the plug 59 enters the liquid extraction tube 6, the upper end of the liquid extraction tube 6 is sealed, so that the sample in the liquid extraction tube 6 cannot flow out under the action of air pressure, thereby realizing the liquid extraction function.

[0021] In this embodiment, a driven bevel gear 55 is rotatably provided inside the housing 51. The driven bevel gear 55 meshes with the nut bevel gear 54. A turbine 56 is coaxially fixed to the driven bevel gear 55. A worm 57 is fixed on the plug 59. The upper end of the worm 57 is slidably penetrated through the housing 51 and the worm 57 meshes with the turbine 56. When the nut bevel gear 54 rotates, the turbine 56 is driven to rotate to lift the worm 57, thereby changing the height position of the plug 59. And when the sliding sleeve 58 slides to the lowest position, the plug 59 is always located above the upper end of the liquid extraction tube 6. That is to say, when the knob 53 is rotated to make the slider assembly 5 slide along the screw rod 42, the height position of the plug 59 changes synchronously, so that when the sliding sleeve 58 rises to the highest position, the plug 59 is located at different depths inside the liquid extraction tube 6, so that different volumes of samples can be retained in the liquid extraction tube 6, and when the liquid extraction tube 6 is aligned with different detection holes 23, the volume of the sample that can be retained in the liquid extraction tube 6 matches the size of the detection hole 23.

[0022] During specific implementation, before use, different-sized detection holes 23 are selected according to the concentration of the sodium hydroxide reagent to be detected. The greater the concentration, the smaller the detection hole 23 selected. Rotate the knob 53 to align the position of the liquid sampling tube 6 with the detection hole 23, and synchronously adjust the height position of the plug 59 so that the smaller the detection hole 23 used, the less the sampling volume of the liquid sampling tube 6. Move the injection rod 9 to inject the calcium chloride detection liquid into the detection hole 23 at the corresponding position. Rotate the turntable 22 to align the detection hole 23 with the direction of the rotating shaft 3;

[0023] Rotate the liquid sampling tube 6 outside the bottom plate 1 through the rotating shaft 3 so that the liquid sampling tube 6 is completely immersed in the sodium hydroxide reagent to be detected. Move the lifting shaft 4 downward to make the plug 59 enter the liquid sampling tube 6 to a certain depth and seal the upper end of the liquid sampling tube 6. Rotate the liquid sampling tube 6 into the corresponding detection hole 23 through the rotating shaft 3. Move the lifting shaft 4 upward to make the plug 59 leave the liquid sampling tube 6. At this time, the sodium hydroxide sample in the liquid sampling tube 6 drops into the detection hole 23;

[0024] Rotate the turntable 22 to align the detection hole 23 with the direction of the CCD detector 7. Whether the sample deteriorates can be detected by detecting its transparency through the CCD detector 7. When the detection hole 23 rotates to the position of the discharge groove 27, the mixed solution therein is discharged into the drain pipe 8.

[0025] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A liquid sodium hydroxide deterioration detection device, comprising a bottom plate (1), characterized in that, A detection disc assembly (2) is provided on the bottom plate (1). A rotating shaft (3) is provided on one side of the bottom plate (1). A lifting shaft (4) is telescopically provided on the rotating shaft (3). A horizontal sliding rod (41) is fixed in the lifting shaft (4). A slider assembly (5) is slidably provided in the sliding rod (41). A liquid extraction pipe (6) is provided at the bottom of the slider assembly (5). A CCD detector (7), a drain pipe (8), and an injection rod (9) are respectively provided clockwise around the detection disc assembly (2) on the bottom plate (1) starting from the rotating shaft (3). The slider assembly (5) includes a housing (51). The housing (51) slidably penetrates through the sliding rod (41). A screw rod (42) parallel to the sliding rod (41) is further fixed on the lifting shaft (4). The screw rod (42) slidably penetrates through the housing (51). A nut bevel gear (54) is rotatably provided in the housing (51). The interior of the nut bevel gear (54) is threadedly connected to the screw rod (42). A driving bevel gear (52) is rotatably provided in the housing (51). The driving bevel gear (52) is further fixed with a knob (53) penetrating outside the housing (51). A sliding sleeve (58) is slidably provided up and down below the housing (51). The liquid extraction pipe (6) is fixedly penetrated in the sliding sleeve (58). A connecting rod (31) parallel to the sliding rod (41) is fixed in the rotating shaft (3). The connecting rod (31) slidably penetrates through the sliding sleeve (58). A plug (59) concentric with the liquid extraction pipe (6) is further provided in the housing (51). A driven bevel gear (55) is rotatably provided in the housing (51). The driven bevel gear (55) meshes with the nut bevel gear (54). A turbine (56) is coaxially fixed to the driven bevel gear (55). A worm (57) is fixed on the plug (59). The upper end of the worm (57) slidably penetrates through the housing (51) and the worm (57) meshes with the turbine (56). When the nut bevel gear (54) rotates, it drives the turbine (56) to rotate, causing the worm (57) to lift, thereby changing the height position of the plug (59). And when the sliding sleeve (58) slides to the lowest position, the plug (59) is always located above the upper end of the liquid extraction pipe (6).

2. The liquid sodium hydroxide deterioration detection device according to claim 1, characterized in that, The detection disc assembly (2) includes a tray (21). The tray (21) is fixed on the bottom plate (1). A turntable (22) is servo-rotatably embedded in the tray (21). Multiple circles of detection holes (23) are circumferentially distributed in the turntable (22). And the volume of the detection holes (23) gradually decreases from the inside to the outside along the radial direction of the turntable (22).

3. The liquid sodium hydroxide deterioration detection device according to claim 2, characterized in that, The turntable (22) is covered with a transparent cover plate (24). The cover plate (24) is fixed to the tray (21). The cover plate (24) is provided with a dripping groove (25) along the direction of the rotating shaft (3). The tray (21) is provided with a discharge groove (27) along the direction of the drain pipe (8). The discharge groove (27) communicates with the drain pipe (8). The cover plate (24) is provided with an injection groove (26) along the direction of the injection rod (9). The injection rod (9) can slide along the injection groove (26), and a through hole is provided in the injection rod (9) capable of aligning with one of the detection holes (23) on the injection groove (26).

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