Pretreatment device of polarization luminoscope

Abstract

The utility model relates to the technical field of auxiliary detection devices, in particular to a pretreatment device of a polarized luminoscope. The device comprises a pretreatment device for supplying a mixed solution to a polarization luminoscope, wherein the pretreatment device comprises a workbench, a reagent supply loop, a standard solution supply loop and a solution mixing loop; the reagent supply loop comprises a lifting suction pipe and a filter membrane; the standard liquid supply loop comprises a standard liquid suction pipe and a plunger pump; the solution mixing loop comprises a three-way electromagnetic valve, a liquid storage ring, a peristaltic pump and a constant temperature device which are located in the workbench. Through the cooperative work of the lifting suction pipe, the plunger pump and the three-way electromagnetic valve, a reagent and a standard solution can be automatically and accurately mixed, and are stably conveyed to the polarization luminoscope through the peristaltic pump; the whole device is small in size and compact in layout; the constant temperature device can monitor and control the temperature of the mixed liquid in real time, and is convenient to operate, high in precision and good in accuracy.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection auxiliary device technical field, concretely relates to a kind of pretreatment device of polarized fluorescence instrument. BACKGROUND

[0002] Polarized fluorescence instrument plays a key role in qualitative and quantitative analysis of matter. However, the traditional pretreatment process relies on manual operation, resulting in cumbersome operation, limited precision and low efficiency. To solve these problems, technicians have made many attempts, such as the device for measuring cyanide in water disclosed in Chinese patent CN210322809U, which introduces the sample through an automatic sampler, mixes it with the distillation reagent after passing through the first three-way electromagnetic valve, and then heats it again through the online distillation module for gas-liquid separation. However, this solution still has the problems of large volume and complex structure, and the heating device only targets the early stage process and does not provide constant temperature control for the mixed solution, which cannot provide targeted pretreatment for the polarized fluorescence instrument. Therefore, further research and development of more compact, efficient and accurate temperature control of the mixed solution pretreatment device is still needed. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a pretreatment device for a polarized fluorescence instrument.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A pretreatment device for a polarized fluorescence instrument, which includes a pretreatment device for supplying mixed liquid to the polarized fluorescence instrument. The pretreatment device includes the following components:

[0006] A workbench is arranged in a table type, with a test tube and a standard liquid cup placed in the middle, and an operation panel arranged on the top;

[0007] A reagent supply circuit includes a lifting pipette and a filter membrane. The lifting pipette includes a lifting arm located on the workbench and a reagent pipette located on the lifting arm. One end of the reagent pipette is inserted into the test tube to contact the reagent, and the other end is connected to the three-way electromagnetic valve through the filter membrane;

[0008] A standard liquid supply circuit includes a standard liquid pipette and a plunger pump. One end of the standard liquid pipette is inserted into the standard liquid cup, and the other end of the standard liquid pipette is connected to the three-way electromagnetic valve through the plunger pump;

[0009] A solution mixing circuit includes a three-way electromagnetic valve, a liquid storage ring, a peristaltic pump and a constant temperature device located in the workbench. The inlet of the three-way electromagnetic valve is connected to the lifting pipette and the standard liquid pipette, respectively. The outlet of the three-way electromagnetic valve is connected to the constant temperature device and the peristaltic pump through the liquid storage ring. The outlet of the liquid storage ring is provided with a liquid level sensor, and the constant temperature device is connected to the polarized fluorescence instrument through a pipeline.

[0010] The technical scheme realizes automatic supply and temperature control of the mixed solution, and supplies the polarization fluorescence instrument.

[0011] The workbench provides a stable operation platform for the whole pretreatment device, the test tube and the standard solution cup arranged in the middle are used for storing reagents and standard solutions to be mixed, and the operation plate arranged at the top is used for controlling the whole pretreatment process; the lifting suction tube accurately sucks the reagent in the test tube into the reagent suction tube through the up-down movement of the lifting arm; the filter membrane is arranged to filter impurities and protect subsequent equipment; the reagent suction tube is connected with the three-way electromagnetic valve through the filter membrane to realize the flow control of the reagent; the standard solution suction tube is used for sucking the standard solution from the standard solution cup, and the plunger pump provides stable pressure to ensure that the standard solution can be supplied to the three-way electromagnetic valve at a set flow rate and speed; the three-way electromagnetic valve realizes the mixing of the reagent and the standard solution by controlling the opening and closing of different inlets; the liquid storage ring is used for temporarily storing the mixed solution to ensure that the mixed solution maintains a certain pressure and flow rate during the conveying process; the peristaltic pump realizes the stable conveying of the mixed solution by periodically squeezing and releasing the hose; and the constant temperature device is used for controlling the temperature of the mixed solution to ensure that the temperature of the mixed solution is constant during the conveying process, so that the analysis result of the polarization fluorescence instrument is not affected; and the liquid level sensor is arranged to monitor the liquid level in the liquid storage ring in real time to ensure the accurate measurement of the mixed solution.

[0012] In addition, the pretreatment device of the polarization fluorescence instrument according to the utility model has the following additional technical features.

[0013] According to one embodiment of the utility model, the front surface of the operation plate is provided with a touch screen and a switch; a controller is arranged in the operation plate, and the controller is connected with the touch screen, the lifting arm, the plunger pump, the peristaltic pump, the three-way electromagnetic valve, the liquid level sensor and the constant temperature device.

[0014] The technical scheme realizes the automatic control and operation of the pretreatment device by arranging the touch screen, the switch and the controller on the operation plate.

[0015] According to one embodiment of the utility model, the standard solution suction tube and the reagent suction tube are both flexible hoses, which extend from the top of the workbench to the back and are connected with the solution mixing loop in the workbench downward.

[0016] The technical scheme realizes the flexible connection between the top of the workbench and the solution mixing loop in the workbench by using the flexible hoses.

[0017] According to one embodiment of the utility model, the peristaltic pump is a servo motor, and the peristaltic pump drives the conveying speed of the reagent in the reagent supply loop and the mixed solution in the solution mixing loop through the solution mixing loop.

[0018] The technical scheme adopts a servo motor as the peristaltic pump, controls the conveying speed of the reagent and the mixed liquid respectively, and ensures the accurate proportioning of the mixed liquid.

[0019] According to one embodiment of the utility model, the liquid storage ring is arranged in a spiral coil type and is compactly arranged in the bottom space of the workbench; the length of the liquid storage ring determines the capacity of the stored mixed liquid.

[0020] The technical scheme compactly stores the mixed liquid and determines the capacity of the mixed liquid through the spiral coil type of the liquid storage ring.

[0021] According to one embodiment of the utility model, the constant temperature device comprises a temperature sensor and a heating wire, and the temperature sensor and the heating wire are connected with a controller respectively.

[0022] The technical scheme realizes the accurate control of the temperature of the mixed liquid through the connection of the temperature sensor and the heating wire with the controller in the constant temperature device.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] (1) Through the cooperative work of the lifting suction tube, the plunger pump and the three-way electromagnetic valve, the device can automatically and accurately mix the reagent and the standard liquid, and stably convey the mixed liquid to the polarization fluorescence instrument through the peristaltic pump; the whole device is small in size and compact in layout;

[0025] (2) The newly added constant temperature device can monitor and control the temperature of the mixed liquid in real time, is convenient to operate, and is high in precision and good in accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is the front view of the utility model.

[0027] Figure 2 is the side view of the utility model.

[0028] Figure 3 is the A-A sectional view of Figure 2 .

[0029] In the drawing: 1, workbench; 2, operation plate; 3, touch screen; 4, switch; 5, lifting suction tube; 6, test tube; 7, standard liquid cup; 8, standard liquid suction tube; 9, plunger pump; 10, filter membrane; 11, three-way electromagnetic valve; 12, liquid storage ring; 13, liquid level sensor; 14, constant temperature device; 15, peristaltic pump; DETAILED DESCRIPTION

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] like Figures 1 to 3 As shown, this embodiment provides a pretreatment device for a polarization fluorescence spectrometer, including a pretreatment device for supplying a mixed solution to the polarization fluorescence spectrometer. The pretreatment device includes the following components:

[0033] Workbench 1 is set up in a tabletop manner, with test tubes 6 and standard liquid cups 7 placed in the middle, and an operation board 2 set on top of it;

[0034] The reagent supply circuit includes a lifting pipette 5 and a filter membrane 10; the lifting pipette 5 includes a lifting arm located on the workbench 1 and a reagent pipette located on the lifting arm; one end of the reagent pipette extends into the test tube 6 to contact the reagent, and the other end is connected to the three-way solenoid valve 11 through the filter membrane 10.

[0035] The standard solution supply circuit includes a standard solution pipette 8 and a plunger pump 9; one end of the standard solution pipette 8 extends into the standard solution cup 7, and the other end of the standard solution pipette 8 is connected to a three-way solenoid valve 11 through the plunger pump 9.

[0036] The solution mixing circuit includes a three-way solenoid valve 11, a liquid storage ring 12, a peristaltic pump 15, and a thermostat 14 located in the workbench 1. The inlet of the three-way solenoid valve 11 is connected to the lifting pipette 5 and the standard liquid pipette 8, respectively. The outlet of the three-way solenoid valve 11 is connected to the thermostat 14 and the peristaltic pump 15 through the liquid storage ring 12. A liquid level sensor 13 is installed at the outlet of the liquid storage ring 12. The thermostat 14 is connected to the polarization fluorescence spectrometer through a pipeline.

[0037] like Figures 1 to 3As shown, the technical scheme realizes automatic supply and temperature control of the mixed solution for the polarized fluorescence instrument. Specifically, the workbench 1 provides a stable operation platform for the entire pretreatment device, the test tube 6 and the standard solution cup 7 placed in the middle are used for storing reagents and standard solutions to be mixed, and the operation plate 2 arranged at the top is used for controlling the entire pretreatment process; the lifting suction pipe 5 accurately sucks the reagent in the test tube 6 into the reagent suction pipe through the up-down movement of the lifting arm; the filter membrane 10 is arranged to filter impurities and protect the subsequent equipment; the reagent suction pipe is connected with the three-way electromagnetic valve 11 through the filter membrane 10, so that the flow direction of the reagent is controlled; the standard solution suction pipe 8 is used for sucking the standard solution from the standard solution cup 7, and the plunger pump 9 provides stable pressure to ensure that the standard solution can be supplied to the three-way electromagnetic valve 11 at a set flow rate and speed; the three-way electromagnetic valve 11 controls the opening and closing of different inlets to realize the mixing of the reagent and the standard solution; the liquid storage ring 12 is used for temporarily storing the mixed solution to ensure that the mixed solution maintains a certain pressure and flow rate during the conveying process; the peristaltic pump 15 realizes stable conveying of the mixed solution through periodic extrusion and release of the hose; and the constant temperature device 14 is used for controlling the temperature of the mixed solution to ensure that the temperature of the mixed solution is constant during the conveying process, so that the analysis result of the polarized fluorescence instrument is avoided to be affected; and the liquid level sensor 13 is arranged to monitor the liquid level in the liquid storage ring 12 in real time, so that the mixed solution is accurately quantified.

[0038] In addition, the pretreatment device of the polarized fluorescence instrument according to the above-mentioned utility model further has the following additional technical features.

[0039] According to one embodiment of the utility model, the front surface of the operation plate 2 is provided with a touch screen 3 and a switch 4; the operation plate 2 is provided with a controller, and the controller is connected with the touch screen 3, the lifting arm, the plunger pump 9, the peristaltic pump 15, the three-way electromagnetic valve 11, the liquid level sensor 13 and the constant temperature device 14 respectively.

[0040] The technical scheme realizes automatic control and operation of the pretreatment device by arranging the touch screen 3, the switch 4 and the controller on the operation plate 2.

[0041] According to one embodiment of the utility model, the standard solution suction pipe 8 and the reagent suction pipe are both flexible hoses, extend from the top to the back of the workbench 1, and are connected with the solution mixing loop in the workbench 1 downward.

[0042] The technical scheme flexibly connects the top of the workbench 1 with the solution mixing loop in the workbench 1 by using the flexible hoses.

[0043] According to one embodiment of the utility model, the peristaltic pump 15 is a servo motor, and the peristaltic pump 15 drives the conveying speed of the reagent in the reagent supply loop and the mixed solution in the solution mixing loop through the solution mixing loop.

[0044] This technical solution uses a servo motor as a peristaltic pump 15 to control the delivery speed of the reagent and the mixture, thereby ensuring the accurate ratio of the mixture.

[0045] According to one embodiment of the present invention, the liquid storage ring 12 is arranged in a spiral coil and is compactly arranged in the bottom space of the workbench 1; the length of the liquid storage ring 12 determines the capacity of the stored mixture.

[0046] This technical solution uses a spiral coil of liquid storage ring 12 to compactly store the mixed liquid and determine its capacity.

[0047] According to one embodiment of the present invention, the constant temperature device 14 includes a temperature sensor and a heating wire, which are respectively connected to a controller.

[0048] This technical solution achieves precise control of the temperature of the mixed liquid by connecting the temperature sensor and heating wire in the constant temperature device 14 to the controller.

[0049] The usage process of the above embodiments is as follows:

[0050] like Figures 1 to 3 As shown, when the workbench 1 is started, the lifting arm lowers the reagent pipette into the test tube 6, draws the reagent, and then rises. The reagent is filtered through the filter membrane 10 and flows into the three-way solenoid valve 11. At the same time, the plunger pump 9 operates, drawing standard solution from the standard solution cup 7 and also flowing into the three-way solenoid valve 11. The three-way solenoid valve 11 controls the opening and closing of different inlets, mixing the reagent and standard solution. The mixed solution flows into the storage ring 12 for temporary storage, while the liquid level sensor 13 monitors the liquid level in the storage ring 12 in real time to ensure that the mixture does not dry out or overflow. The peristaltic pump 15 driven by the servo motor starts working, periodically squeezing and releasing the tubing to stably deliver the mixture from the storage ring 12 to the thermostat 14. The temperature sensor in the thermostat 14 monitors the temperature of the mixture in real time and adjusts the temperature through the heating wire to ensure that the mixture maintains a constant temperature during delivery. The temperature-controlled mixture is then delivered to the polarization fluorescence spectrometer for analysis through pipelines. Throughout the process, the controller in the control panel 2 controls the coordinated operation of the lifting arm, plunger pump 9, peristaltic pump 15, three-way solenoid valve 11, liquid level sensor 13 and constant temperature device 14 through the input information of the touch screen 3, so as to realize the automatic supply, precise proportioning and temperature control of the mixed liquid.

[0051] It should be noted that this utility model only improves the hardware of the preprocessing device and does not improve the software of the controller, etc. The software algorithms used are all conventional technologies and are protected by utility model.

[0052] Although the utility model is described in detail by referring to the drawings and in conjunction with the preferred embodiments, the utility model is not limited thereto. Without departing from the spirit and essence of the utility model, those skilled in the art can make various equivalent modifications or replacements to the embodiments of the utility model, and these modifications or replacements should be within the scope of the utility model. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, and these changes or replacements should be within the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A pretreatment device for a polarization fluorescence instrument, characterized by, The pre-treatment device for supplying mixed liquid to the polarization fluorometer comprises the following components: A workbench (1) is arranged in a table type, wherein a test tube (6) and a standard solution cup (7) are placed in the middle, and an operation board (2) is arranged on the top; A reagent supply circuit comprises a lifting suction tube (5) and a filter membrane (10); the lifting suction tube (5) comprises a lifting arm arranged on the workbench (1) and a reagent suction tube arranged on the lifting arm; one end of the reagent suction tube is inserted into the test tube (6) to contact the reagent, and the other end is connected to a three-way electromagnetic valve (11) through the filter membrane (10); A standard solution supply circuit comprises a standard solution suction tube (8) and a plunger pump (9); one end of the standard solution suction tube (8) is inserted into the standard solution cup (7), and the other end of the standard solution suction tube (8) is connected to the three-way electromagnetic valve (11) through the plunger pump (9); A solution mixing circuit comprises the three-way electromagnetic valve (11), a liquid storage ring (12), a peristaltic pump (15) and a constant temperature device (14) arranged in the workbench (1); the inlet of the three-way electromagnetic valve (11) is connected to the lifting suction tube (5) and the standard solution suction tube (8), respectively; the outlet of the three-way electromagnetic valve (11) is connected to the constant temperature device (14) and the peristaltic pump (15) through the liquid storage ring (12); the outlet of the liquid storage ring (12) is provided with a liquid level sensor (13), and the constant temperature device (14) is connected to the polarization fluorometer through a pipeline.

2. The pretreatment device for a polarization fluorescence instrument according to claim 1, characterized in that, The front surface of the operation board (2) is provided with a touch screen (3) and a switch (4); a controller is arranged in the operation board (2) and connected to the touch screen (3), the lifting arm, the plunger pump (9), the peristaltic pump (15), the three-way electromagnetic valve (11), the liquid level sensor (13) and the constant temperature device (14), respectively.

3. The pretreatment device for a polarization fluorescence instrument according to claim 1, wherein The standard solution suction tube (8) and the reagent suction tube are both flexible tubes, which extend from the top to the back of the workbench (1) and are connected to the solution mixing circuit in the workbench (1) downward.

4. The pretreatment device for a polarization fluorescence instrument according to claim 2, wherein The peristaltic pump (15) is a servo motor, which drives the conveying speed of the reagent in the reagent supply circuit and the mixed liquid in the solution mixing circuit through the solution mixing circuit.

5. The pretreatment device for a polarization fluorescence instrument according to claim 1, wherein The liquid storage ring (12) is arranged in a spiral coil type and is compactly arranged in the bottom space of the workbench (1); the length of the liquid storage ring (12) determines the capacity of the stored mixed liquid.

6. The pretreatment device for a polarization fluorescence instrument according to claim 2, wherein The constant temperature device (14) comprises a temperature sensor and a heating wire, which are connected to the controller, respectively.

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