Intelligent monitoring system for light stability of organic solution standard substance in methanol

Abstract

The invention discloses an intelligent monitoring system for light stability of an organic solution standard substance in methanol, and relates to the technical field of sampling monitoring, the intelligent monitoring system comprises a base station and a circulating pump II, the base station is provided with a light source mechanism, the light source mechanism is provided with a disc box, and one end of the circulating pump II is connected with the right side of the top of a box cavity of the disc box through a deoxidation assembly; the other end of the second circulating pump is connected with the left side of the top of a box cavity of the disc box through a temperature control assembly, the centers of the upper end and the lower end of the disc box are connected through a first pipeline, a first valve and a first circulating pump are arranged on the first pipeline, the first pipeline is further connected with a monitoring mechanism, and an arc-shaped flow guide plate is arranged at the top of the box cavity of the disc box. The center of the bottom of the tray box is provided with a foaming mechanism, the tray surface of the tray box is provided with a temperature control tray, and the upper end of the tray box is connected with a liquid guide port. The device can improve the uniformity and stability of a solution, automatically adjust nitrogen supplement, maintain pressure and temperature compensation, and cooperate with a monitoring mechanism to complete detection of parameters such as absorbance, pH and the like on line.

Description

Technical Field

[0001] The present invention relates to the technical field of sampling and monitoring, and in particular to an intelligent monitoring system for the photo-stability of organic solution reference materials in methanol. Background Technique

[0002] In the fields of chemistry, pharmaceuticals, and materials science, it is necessary to evaluate and control the quality of the photo-stability of reference materials. As a common solvent, methanol, its organic solutions, photosensitive reference materials, etc. are prone to photodegradation, photooxidation and other reactions under light illumination, resulting in changes in the concentration or chemical properties of the reference materials, directly affecting the reliability of experimental data. At present, in traditional photo-stability monitoring methods, most monitoring systems only conduct static light tests, lacking dynamic regulation of key factors such as oxygen and temperature, and unable to simulate real reaction conditions (such as sealed storage or open environment). During the light illumination process, the solution is prone to uneven distribution due to local temperature differences or material sedimentation. Traditional stirring or circulation methods are prone to introducing bubbles or disturbances, interfering with the accuracy of optical monitoring. Existing deoxidation techniques (such as inert gas replacement) are difficult to continuously maintain an anaerobic environment in a circulation system, and are not linked with temperature control and light intensity adjustment, resulting in residual oxygen interfering with photoreactions. Dependence on manual sampling and off-line analysis (such as HPLC) has problems such as data lag and cumbersome operations, making it difficult to achieve real-time monitoring and early warning.

[0003] Therefore, it is necessary to provide an intelligent monitoring system for the photo-stability of organic solution reference materials in methanol 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 intelligent monitoring system for the photo-stability of organic solution reference materials in methanol, including a base and a second circulation pump. A light source mechanism is installed on the base, and a mounting box is installed on the light source mechanism. One end of the second circulation pump is connected to the upper right side of the box cavity of the mounting box through a deoxidation component, and the other end of the second circulation pump is connected to the upper left side of the box cavity of the mounting box through a temperature control component. The upper and lower centers of the mounting box are connected through a first pipeline. A first valve and a first circulation pump are respectively provided on the first pipeline, and the first pipeline is also connected to a monitoring mechanism. An arc-shaped flow guide plate is provided at the top of the box cavity of the mounting box, a foaming mechanism is also provided at the center of the bottom of the mounting box, a temperature control plate is provided on the disk surface of the mounting box, and a liquid guide port is connected to the upper end of the mounting box.

[0005] Furthermore, the deoxidization component includes Tank 1. At the upper end of the cavity of Tank 1, a flow collector box 1 is installed. At the upper end of the flow collector box 1, an inlet 1 is connected. In the center of the cavity of Tank 1, a flow collector pipe 1 is installed. At the upper end of the flow collector pipe 1, an outlet 1 is connected. The lower end of the flow collector box 1 is connected with a plurality of branch pipes 1 which are also connected with the lower end of the flow collector pipe 1. The lower end of Tank 1 is connected with the top right side of the cavity of the disk box through an inlet pipe 1. The upper end of Tank 1 is connected with one end of a circulation pump 2 through an outlet pipe 1. The lower end of Tank 1 is also connected with the top of the cavity of the disk box through a reflux pipe. Inside the outlet pipe 1, iron wires are installed, and on the outer wall of the outlet pipe 1, a controller 1 connected to the iron wires is provided.

[0006] Furthermore, inside the reflux pipe, a temperature control pipe is installed, and on the outer wall of the reflux pipe, a controller 2 connected to the temperature control pipe is provided.

[0007] Furthermore, the temperature control component includes Tank 2. At the upper end of the cavity of Tank 2, a flow collector box 2 is installed. At the upper end of the flow collector box 2, an inlet 2 is connected. In the center of the cavity of Tank 2, a flow collector pipe 2 is installed. At the upper end of the flow collector pipe 2, an outlet 2 is connected. The lower end of the flow collector box 2 is connected with a plurality of branch pipes 2 which are also connected with the lower end of the flow collector pipe 2. The upper end of Tank 2 is connected with the other end of the circulation pump 2 through an inlet pipe 2. The lower end of Tank 2 is connected with the left side of the top of the cavity of the disk box through an outlet pipe 2. An exhaust valve is also provided on Tank 2.

[0008] Furthermore, a nitrogen tank is connected to the cavity of Tank 2.

[0009] Furthermore, a plurality of flow holes are also provided on the arc-shaped end face of the guide plate.

[0010] Furthermore, a temperature and pressure sensor is also provided on the top of the cavity of the disk box.

[0011] Furthermore, the foaming mechanism includes a connecting plate and an arc-shaped orifice plate. The connecting plate is installed outside the lower end of the disk box, and the orifice plate is installed at the center of the bottom of the cavity of the disk box. The two ends of the orifice plate are respectively connected with the box wall of the disk box through flexible sheets. Slide holes are also provided on the box wall of the disk box, and sliding rods slide on the slide holes. The upper end of the sliding rod is connected with the orifice plate, and the lower end of the sliding rod is connected with the connecting plate through a spring.

[0012] Furthermore, the monitoring mechanism includes a pipe 2 connected to pipe 1. A valve 2 is provided on pipe 2. On the base, a carrier platform connected to pipe 2 is provided. A motor is provided at the center of the carrier platform. A carrier disk is provided at the lower end of the motor. Sampling cups corresponding to pipe 2 are provided on the carrier disk. A monitor corresponding to the sampling cups is also provided on the carrier platform.

[0013] Compared with the prior art, the present invention provides an intelligent monitoring system for the photo-stability of organic solution reference materials in methanol, which has the following beneficial effects: In the present invention, oxygen in the circulating gas is directly removed by using a high-temperature iron wire reactor, combined with condensation dewatering and nitrogen compensation, to achieve dynamic control of oxygen concentration, avoid interference from photo-oxidation reactions, and ensure the stability of the solution and gas temperatures through the temperature control plate, temperature control components, and temperature control tubes in the reflux pipe, reducing the influence of thermal effects on the photo-degradation rate, so that the temperature can be accurately regulated.

[0014] In the present invention, through the design of the arc-shaped guide plate and the narrow upper arc cavity, the solution is guided to flow gently into the cavity of the disk box, reducing the circulating impact; combined with the dispersed flow through the flow holes, the generation of bubbles is avoided, ensuring uniform distribution of substances. Micro-bubbles are periodically released through the orifice plate to achieve solution mixing when the light source is turned off, which not only improves the uniformity but also avoids the scattering interference of bubbles on light, thus enhancing the uniformity and stability of the solution.

[0015] In the present invention, through the linkage of the first circulation pump and the second circulation pump, a closed-loop flow of the solution and gas is achieved. Combined with the real-time feedback of the temperature and pressure sensor, the nitrogen supplementation is automatically adjusted to maintain pressure and temperature compensation. The carrier plate is automatically sampled by the motor drive, and parameters such as absorbance and pH are detected in cooperation with the on-line monitor, reducing human operation errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the monitoring system of the present invention; Figure 2 is a schematic structural diagram of the temperature and pressure sensor in the present invention; Figure 3 is a schematic structural diagram of the sliding hole in the present invention; Figure 4 is a schematic structural diagram of the foaming mechanism in the present invention; Figure 5 is a schematic structural diagram of the flow hole in the present invention; Figure 6 is a schematic structural diagram of the monitoring mechanism in the present invention; Figure 7 is a schematic structural diagram of the nitrogen tank in the present invention; Figure 8 is a schematic structural diagram of the deoxidation component and the temperature control component in the present invention; In the figure: 1, base; 2, light source mechanism; 3, disc box; 4, temperature control disc; 5, pipe one; 6, monitoring mechanism; 7, liquid guide port; 8, circulation pump two; 9, foaming mechanism; 10, temperature and pressure sensor; 11, flow guiding plate; 31, sliding hole; 51, circulation pump one; 52, valve one; 61, pipe two; 62, valve two; 63, carrier table; 64, motor; 65, carrier disc; 66, sampling cup; 67, monitor; 81, deoxidation component; 82, temperature control component; 811, tank one; 812, manifold box one; 813, inlet one; 814, manifold pipe one; 815, branch pipe one; 816, outlet one; 817, inlet pipe one; 818, outlet pipe one; 819, return pipe; 8181, controller one; 8182, iron wire; 8191, controller two; 8192, temperature control pipe; 821, tank two; 822, manifold box two; 823, inlet two; 824, manifold pipe two; 825, branch pipe two; 826, outlet two; 827, inlet pipe two; 828, outlet pipe two; 829, nitrogen tank; 8210, exhaust valve; 91, orifice plate; 92, flexible sheet; 93, connecting plate; 94, sliding rod; 95, spring; 111, flow hole. Specific embodiments

[0017] Referring to Figures 1-8 , for the intelligent monitoring system of the photostability of organic solution reference material in methanol, it includes a base 1 and a circulation pump two 8. A light source mechanism 2 is installed on the base 1, and a disc box 3 is installed on the light source mechanism 2. One end of the circulation pump two 8 is connected to the upper right side of the cavity of the disc box 3 through a deoxidation component 81, and the other end of the circulation pump two 8 is connected to the upper left side of the cavity of the disc box 3 through a temperature control component 82. The upper and lower centers of the disc box 3 are connected by a pipe one 5. A valve one 52 and a circulation pump one 51 are respectively arranged on the pipe one 5, and the pipe one 5 is also connected to a monitoring mechanism 6. An arc-shaped flow guiding plate 11 is arranged at the top of the cavity of the disc box 3, a foaming mechanism 9 is arranged at the center of the bottom of the disc box 3, a temperature control disc 4 is arranged on the disc surface of the disc box 3, and a liquid guide port 7 is connected to the upper end of the disc box 3.

[0018] In this embodiment, one disc surface of the disc box 3 corresponds to the light source mechanism 2 in the front direction and is of a transparent structure, so that the light of the light source mechanism 2 is perpendicularly incident on the cavity of the disc box 3. The other disc surface of the disc box 3 covers the temperature control disc 4, and the temperature of the solution in the cavity of the disc box 3 is regulated and maintained through the temperature control disc 4.

[0019] In this embodiment, a methanol organic solution containing a standard substance is introduced into the disk box 3 through the liquid guiding port 7, and the height of the solution introduced into the disk box 3 is higher than the two ends of the diversion plate 11 and lower than the top of the cavity of the disk box 3, so that a certain cavity is formed at the top of the cavity of the disk box 3. The diversion plate 11 and the cavity of the disk box 3 form a narrow upper arc cavity and a wide air cavity, and the lower end of the liquid guiding port 7 is communicated with the upper arc cavity, and the upper end of the first pipe 5 is also communicated with the upper arc cavity. That is to say, when the first pipe 5 is driven by the first circulating pump 51 to drain from bottom to top, that is, the solution in the disk box 3 is drained and circulated from bottom to top. Among them, through the setting of the arc-shaped diversion plate 11, the solution flowing out of the upper end of the first pipe 5 can flow to the upper end surface of the diversion plate 11 for the first time, and is dispersed to both ends by the upper end surface of the diversion plate 11, reducing the impact and fluctuation effect on the solution in the disk box 3. Through the setting of the narrow upper arc cavity, it is convenient for the solution to quickly enter the solution in the cavity of the disk box 3 in a form of completely filling the upper arc cavity for circulating flow, avoiding the occurrence of bubbles when the upper end of the solution is stably circulating for a long time. Thus, while enabling the solution to circulate, the uniformity of the stable distribution of the substances inside the solution in the cavity of the disk box 3 is improved, and at the same time, the activity of the substances inside the solution during the circulating flow is reduced, avoiding the overlap of substances, so that the substances in the solution can be stably and evenly irradiated by the light source mechanism 2, and the uniformity of the light received by the substances in the solution is improved.

[0020] In this embodiment, the deoxidation component 81 includes a first tank 811. A first collector box 812 is installed at the upper end of the cavity of the first tank 811. An inlet 813 is connected to the upper end of the first collector box 812. A first collector pipe 814 is installed at the center of the cavity of the first tank 811. An outlet 816 is connected to the upper end of the first collector pipe 814. A plurality of first branch pipes 815 connected to the lower end of the first collector pipe 814 are connected to the lower end of the first collector box 812. The lower end of the first tank 811 is connected to the upper right side of the cavity of the disk box 3 through a first inlet pipe 817. The upper end of the first tank 811 is connected to one end of the second circulating pump 8 through an outlet pipe 818. The lower end of the first tank 811 is also connected to the upper part of the cavity of the disk box 3 through a return pipe 819. A wire 8182 is installed inside the outlet pipe 818, and a first controller 8181 connected to the wire 8182 is provided on the outer wall of the outlet pipe 818.

[0021] In this embodiment, the inlet end of the first inlet pipe 817 is communicated with the air cavity, and the outlet end of the return pipe 819 is communicated with the upper arc cavity.

[0022] In this embodiment, the first controller 8181 is used to control the wire 8182 to be in a high-temperature state, so that the wire 8182 can react with oxygen, thereby removing the oxygen component in the gas, avoiding the participation of oxygen in the reaction and reducing the monitoring accuracy.

[0023] In this embodiment, cold fluid is introduced into inlet 813, and successively passes through branch pipe 815, header pipe 814, and outlet 816 to condense the gas entering tank 811 through inlet pipe 817, thereby removing water molecules in the gas and preventing water molecules from participating in the reaction between iron wire and oxygen. The condensed liquid flows into tray tank 3 through return pipe 819.

[0024] In this embodiment, temperature control pipe 8192 is installed inside return pipe 819, and controller 8191 connected to temperature control pipe 8192 is provided on the outer wall of return pipe 819. The temperature of the condensed liquid is regulated by controller 8191 to be consistent with the temperature of the solution in tray tank 3, maintaining the temperature condition of the solution in tray tank 3.

[0025] In this embodiment, temperature control assembly 82 includes tank 821. Header tank 822 is installed at the upper end of the tank cavity of tank 821. Inlet 823 is connected to the upper end of header tank 822. Header pipe 824 is installed at the center of the tank cavity of tank 821. Outlet 826 is connected to the upper end of header pipe 824. A plurality of branch pipes 825 connected to the lower end of header pipe 824 are connected to the lower end of header tank 822. The upper end of tank 821 is connected to the other end of circulation pump 8 through inlet pipe 827. The lower end of tank 821 is connected to the left side of the top of the cavity of tray tank 3 through outlet pipe 828. Exhaust valve 8210 is also provided on tank 821.

[0026] In this embodiment, the outlet end of outlet pipe 828 is communicated with the gas cavity.

[0027] In this embodiment, cold fluid is introduced into inlet 823, and successively passes through branch pipes 825, header pipe 824, and outlet 826 to cool the high-temperature gas entering tank 821 through inlet pipe 827 to be consistent with the gas temperature in tray tank 3, maintaining the temperature condition of the gas in the tray tank.

[0028] In this embodiment, exhaust valve 8210 is used for gas discharge, so as to maintain the purity and pressure stability of the gas in tray tank 3.

[0029] In this embodiment, nitrogen tank 829 is connected to the cavity of tank 821 so that the solution in tray tank 3 is in an anaerobic condition.

[0030] In this embodiment, a plurality of flow holes 111 are further provided on the arc-shaped end face of deflector 11, and flow holes 111 are in contact with the tray wall of tray tank 3. When the solution passes through flow holes 111, it can flow along the tray wall of tray tank 3, reducing the impact effect on the solution. At the same time, it is used to put the upper arc cavity and the gas cavity in a communicating state.

[0031] In this embodiment, a temperature and pressure sensor 10 is further provided at the top of the cavity of the disk box 3 to monitor the temperature and pressure in the cavity of the disk box 3, so as to make timely adjustments, enabling the solution to undergo photosensitive monitoring under the required stable temperature, pressure, and light conditions.

[0032] In this embodiment, the foaming mechanism 9 includes a connecting plate 93 and an arc-shaped orifice plate 91. The connecting plate 93 is installed outside the lower end of the disk box 3, and the orifice plate 91 is installed at the center of the bottom of the cavity of the disk box 3. Both ends of the orifice plate 91 are respectively connected to the box wall of the disk box 3 through flexible sheets 92. A sliding hole 31 is further provided on the box wall of the disk box 3, and a sliding rod 94 slides on the sliding hole 31. The upper end of the sliding rod 94 is connected to the orifice plate 91, and the lower end of the sliding rod 94 is connected to the connecting plate 93 through a spring 95.

[0033] In this embodiment, at regular intervals, when the circulation pump one 51 regulates the circulation flow of the pipeline one 5 from top to bottom, the pipeline one 5 sucks the gas in the air cavity into the bottom of the solution. The gas impacts and lifts the orifice plate 91, and the gas forms tiny bubbles through the orifice of the orifice plate 91. The tiny bubbles float upward, thus achieving the effect of mixing substances in the solution, and further improving the uniform distribution of substances in the solution. As a preferred embodiment, during the process of foaming and mixing, the light source mechanism 2 is turned off. After the foaming is completed and the solution is stable, the light source mechanism 2 is turned on again.

[0034] In this embodiment, the monitoring mechanism 6 includes a pipeline two 61 connected to the pipeline one 5. A valve two 62 is provided on the pipeline two 61. A carrier 63 connected to the pipeline two 61 is provided on the base 1. A motor 64 is provided at the center of the carrier 63. A carrier plate 65 is provided at the lower end of the motor 64. The carrier plate 65 is provided with a sampling cup 66 corresponding to the pipeline two 61. A monitor 67 corresponding to the sampling cup 66 is further provided on the carrier 63.

[0035] In this embodiment, during sampling, the motor 64 controls the rotation of the carrier plate 65 to align the sampling cup 66 with the outlet end of the pipeline two 61, and the valve two 62 is opened for sampling.

[0036] In specific implementation, it includes the following steps: Step 1: Import a methanol organic solution containing a standard substance into the disk box 3 through the liquid guide port 7, so that an upper arc cavity and an air cavity are formed at the top of the cavity of the disk box 3; Step 2: Start the circulation pump two 8 to circulate the gas in the air cavity and the upper arc cavity. At the same time, nitrogen is supplemented through the nitrogen tank 829, and the exhaust valve 8210 is opened to make the gas in the air cavity and the upper arc cavity filled with pure nitrogen, and then the exhaust valve 8210 is closed; Step 3: Set the operating interval time of the foaming mechanism 9; Step 4: Start the circulation pump one 51 to circulate the solution in the disk box 3. At the same time, start the deoxidation component 81 and the temperature control component 82; Step Five: Monitor the temperature and pressure through the temperature and pressure sensor 10, so as to feedback to the temperature control plate 4 for temperature regulation, and feedback to the nitrogen gas tank 829 to compensate for nitrogen gas to regulate the pressure; Step Six: Regularly take samples for monitoring through the monitoring mechanism 6.

[0037] The above is only a preferred specific embodiment of the invention, but the protection scope of the invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the invention, according to the technical solution of the invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the invention.

Claims

1. An intelligent monitoring system for the photo-stability of organic solution reference materials in methanol, comprising a base station (1) and a second circulation pump (8), characterized in that, A light source mechanism (2) is installed on the base station (1), and a disc box (3) is installed on the light source mechanism (2). One end of the second circulation pump (8) is connected to the upper right side of the inner cavity of the disc box (3) through a deoxidation component (81), and the other end of the second circulation pump (8) is connected to the upper left side of the inner cavity of the disc box (3) through a temperature control component (82). The upper and lower centers of the disc box (3) are connected by a first pipeline (5). A first valve (52) and a first circulation pump (51) are respectively arranged on the first pipeline (5), and the first pipeline (5) is also connected to a monitoring mechanism (6). An arc-shaped guide plate (11) is arranged on the top of the inner cavity of the disc box (3), a foaming mechanism (9) is arranged at the center of the bottom of the disc box (3), a temperature control disc (4) is arranged on the disc surface of the disc box (3), and a liquid guide port (7) is connected to the upper end of the disc box (3).

2. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 1, wherein The deoxidation component (81) includes a first tank (811). A first collector box (812) is installed at the upper end of the inner cavity of the first tank (811). An inlet one (813) is connected to the upper end of the first collector box (812). A first collector pipe (814) is installed at the center of the inner cavity of the first tank (811). An outlet one (816) is connected to the upper end of the first collector pipe (814). The lower end of the first collector box (812) is connected to a plurality of first branch pipes (815) which are connected to the lower end of the first collector pipe (814). The lower end of the first tank (811) is connected to the upper right side of the inner cavity of the disc box (3) through an inlet pipe one (817). The upper end of the first tank (811) is connected to one end of the second circulation pump (8) through an outlet pipe one (818). The lower end of the first tank (811) is also connected to the upper part of the inner cavity of the disc box (3) through a return pipe (819). A wire (8182) is installed inside the outlet pipe one (818), and a first controller (8181) connected to the wire (8182) is arranged on the outer wall of the outlet pipe one (818).

3. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 2, wherein A temperature control pipe (8192) is installed inside the return pipe (819), and a second controller (8191) connected to the temperature control pipe (8192) is arranged on the outer wall of the return pipe (819).

4. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 1, characterized in that, The temperature control component (82) includes a second tank (821). A second collector box (822) is installed at the upper end of the inner cavity of the second tank (821). An inlet two (823) is connected to the upper end of the second collector box (822). A second collector pipe (824) is installed at the center of the inner cavity of the second tank (821). An outlet two (826) is connected to the upper end of the second collector pipe (824). The lower end of the second collector box (822) is connected to a plurality of second branch pipes (825) which are connected to the lower end of the second collector pipe (824). The upper end of the second tank (821) is connected to the other end of the second circulation pump (8) through an inlet pipe two (827). The lower end of the second tank (821) is connected to the upper left side of the inner cavity of the disc box (3) through an outlet pipe two (828), and an exhaust valve (8210) is also arranged on the second tank (821).

5. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 4, characterized in that, A nitrogen tank (829) is connected to the inner cavity of the second tank (821).

6. The intelligent monitoring system for the photostability of the organic solution reference material in methanol according to claim 1, characterized in that, A plurality of flow holes (111) are also arranged on the arc-shaped end face of the guide plate (11).

7. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 1, characterized in that A temperature and pressure sensor (10) is also arranged on the top of the inner cavity of the disc box (3).

8. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 1, wherein The foaming mechanism (9) includes a connecting plate (93) and an arc-shaped orifice plate (91). The connecting plate (93) is installed outside the lower end of the disc box (3), and the orifice plate (91) is installed at the center of the bottom of the cavity of the disc box (3). Both ends of the orifice plate (91) are respectively connected to the box wall of the disc box (3) through flexible sheets (92). A sliding hole (31) is also provided on the box wall of the disc box (3), and a sliding rod (94) slides on the sliding hole (31). The upper end of the sliding rod (94) is connected to the orifice plate (91), and the lower end of the sliding rod (94) is connected to the connecting plate (93) through a spring (95).

9. The intelligent monitoring system for the photo-stability of the organic solution reference material in methanol according to claim 1, wherein, The monitoring mechanism (6) includes a pipe two (61) connected to the pipe one (5). A valve two (62) is provided on the pipe two (61). A carrier (63) connected to the pipe two (61) is provided on the base (1). A motor (64) is provided at the center of the carrier (63). A carrier plate (65) is provided at the lower end of the motor (64). A sampling cup (66) corresponding to the pipe two (61) is provided on the carrier plate (65). A monitor (67) corresponding to the sampling cup (66) is also provided on the carrier (63).

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