Liquid sampling and diluting device

Abstract

The utility model relates to the field of liquid dilution, and discloses a liquid sampling and diluting device, which comprises a sampling flow path, a sampling flow path and a sampling flow path, a first rotary valve, a first metering tank and a first energy accumulator, a first inlet and a second inlet of the first rotary valve are respectively connected to the sampling flow path and the first energy accumulator, an outlet of the first rotary valve is connected to the first metering tank, and the first metering tank is provided with a first liquid level meter; a first inlet and a second inlet of the second rotary valve are connected to the clear water storage tank and the second energy accumulator respectively, an outlet of the second rotary valve is connected to the second metering tank, and the second metering tank is provided with a second liquid level meter; the diluting tank is connected to the first metering tank and the second metering tank; and the controller is in communication connection with the first liquid level meter, the second liquid level meter, the first rotary valve and the second rotary valve. According to the utility model, automatic sampling and dilution can be realized, and the accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid dilution, in particular to a liquid sampling and dilution device. Background Art

[0002] When carrying out the vanadium extraction process, the liquid sample testing operations in the production process, from sampling, dilution (sample preparation) to testing, are all completed manually. The manual sampling results fluctuate greatly and are easily affected by the proficiency of the sample preparer, which lacks guidance for production and quality control.

[0003] Therefore, it is necessary to study an improved solution that can automatically sample and dilute and improve accuracy. Utility Model Content

[0004] The main purpose of the utility model is to provide a liquid sampling and dilution device to solve the problem of poor accuracy of results caused by manual sampling and dilution in the prior art.

[0005] According to one aspect of the utility model, a liquid sampling and dilution device is provided, comprising:

[0006] A sampling flow path, the sampling flow path is used to communicate with the sample container;

[0007] a first rotary valve, a first metering tank, and a first accumulator, wherein the first rotary valve has a plurality of inlets and an outlet connected to the first metering tank, the valve core of the first rotary valve can rotate to connect any inlet of the first rotary valve with the outlet, the first inlet and the second inlet of the plurality of inlets of the first rotary valve are connected to the sampling flow path and the first accumulator respectively, and the first metering tank is provided with a first liquid level gauge;

[0008] a second rotary valve, a clean water storage tank, a second metering tank, and a second accumulator, wherein the second rotary valve has a plurality of inlets and an outlet connected to the second metering tank, the valve core of the second rotary valve can rotate to connect any inlet of the second rotary valve with the outlet, the first inlet and the second inlet of the plurality of inlets of the second rotary valve are connected to the clean water storage tank and the second accumulator respectively, and the second metering tank is provided with a second liquid level gauge;

[0009] a dilution tank connected to the first metering tank and the second metering tank;

[0010] The controller is communicatively connected with the first liquid level meter, the second liquid level meter, the first rotary valve and the second rotary valve.

[0011] According to an embodiment of the present invention, the sampling flow path is a circulation flow path.

[0012] According to one embodiment of the utility model, the sampling flow path includes a first branch and a second branch connected to the sample container and a connecting branch connecting the first branch and the second branch. The sampling flow path also includes a driving pump that drives the sample to circulate along the first branch, the connecting branch and the second branch.

[0013] According to an embodiment of the utility model, the driving pump is arranged in the connecting branch, and the sampling flow path further includes a first solenoid valve arranged in the first branch and a second solenoid valve arranged in the second branch.

[0014] According to an embodiment of the present invention, the liquid sampling and dilution device further comprises a filter component disposed upstream of the first inlet of the first rotary valve.

[0015] According to an embodiment of the utility model, the first metering tank is provided with a pH detection part and a temperature detection part, and the controller is communicatively connected with the pH detection part and the temperature detection part.

[0016] According to an embodiment of the present invention, the liquid sampling and dilution device further comprises a diluent delivery pipeline connected to the dilution tank, and the diluent delivery pipeline is used to deliver the diluent to the detection unit.

[0017] According to an embodiment of the present invention, the liquid sampling and dilution device further includes a cleaning liquid storage tank, which is connected to the third inlet of the second rotary valve.

[0018] According to an embodiment of the present utility model, the first rotary valve and the second rotary valve are four-way valves.

[0019] According to an embodiment of the present invention, the first rotary valve and the second rotary valve are made of high pressure resistant material.

[0020] In the technical solution of the utility model, the valve cores of the first rotary valve and the second rotary valve can be controlled to rotate by the controller respectively, so that the first inlets of the first rotary valve and the second rotary valve are connected to their respective outlets, at which time the liquid sample in the sampling flow path can enter the first metering tank via the first rotary valve, and the clean water in the clean water storage tank can enter the second metering tank via the second rotary valve; when the detection value of the first liquid level meter reaches a predetermined value, the controller can control the valve core of the first rotary valve to rotate, so that the second inlet of the first rotary valve is connected to the outlet, and at this time the sample in the first metering tank can be driven to enter the dilution tank via the first accumulator; similarly, when the detection value of the second liquid level meter reaches a predetermined value, the controller can control the valve core of the second rotary valve to rotate, so that the second inlet of the second rotary valve is connected to the outlet, and at this time the clean water in the second metering tank can be driven to enter the dilution tank via the second accumulator. Thus, through the technical solution of the utility model, automatic sampling and dilution can be realized, and accurate sampling can be achieved with the help of the first liquid level meter and the second liquid level meter, ensuring the accuracy of the sampling and dilution results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some implementation cases of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram showing a liquid sampling and dilution device according to an embodiment of the utility model;

[0023] Figure 2 A flow chart showing a liquid sampling and dilution method according to an embodiment of the present utility model is shown.

[0024] Description of reference numerals:

[0025] 10. Sampling flow path; 11. Driving pump; 12. First branch; 13. First solenoid valve; 14. Second branch; 15. Second solenoid valve; 16. Connecting branch; 20. First rotary valve; 22. First metering tank; 24. First accumulator; 30. Second rotary valve; 32. Clean water storage tank; 34. Second metering tank; 36. Second accumulator; 40. Dilution tank; 42. Dilution liquid delivery pipeline; 50. Cleaning liquid storage tank; 100. Liquid sampling and dilution device. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] Figure 1 A schematic diagram of a liquid sampling and dilution device 100 according to an embodiment of the present utility model is shown. Figure 1As shown, the liquid sampling and dilution device 100 includes: a sampling flow path 10, the sampling flow path 10 is used to communicate with the sample container; a first rotary valve 20, a first metering tank 22, and a first accumulator 24, the first rotary valve 20 has multiple inlets and an outlet connected to the first metering tank 22, the valve core of the first rotary valve 20 can be rotated to make any inlet of the first rotary valve 20 communicate with the outlet, the first inlet and the second inlet of the multiple inlets of the first rotary valve 20 are respectively connected to the sampling flow path 10 and the first accumulator 24, the first metering tank 22 is provided with a first liquid level gauge; a second rotary valve 30, a clean water storage tank 3 2. A second metering tank 34 and a second accumulator 36. The second rotary valve 30 has a plurality of inlets and an outlet connected to the second metering tank 34. The valve core of the second rotary valve 30 can be rotated to connect any inlet of the second rotary valve with the outlet. The first inlet and the second inlet of the plurality of inlets of the second rotary valve 30 are respectively connected to the clean water storage tank 32 and the second accumulator 36. The second metering tank 34 is provided with a second liquid level gauge; a dilution tank 40 is connected to the first metering tank 22 and the second metering tank 34; a controller is communicatively connected with the first liquid level gauge, the second liquid level gauge, the first rotary valve 20 and the second rotary valve 30.

[0029] In an embodiment of the utility model, the valve cores of the first rotary valve 20 and the second rotary valve 30 can be controlled to rotate by a controller respectively, so that the first inlets of the first rotary valve 20 and the second rotary valve 30 are connected to their respective outlets respectively. At this time, the liquid sample in the sampling flow path 10 can enter the first metering tank 22 via the first rotary valve 20, and the clean water in the clean water storage tank 32 can enter the second metering tank 34 via the second rotary valve 30; when the detection value of the first liquid level meter reaches a predetermined value, the controller can control the valve core of the first rotary valve 20 to rotate so that the second inlet of the first rotary valve 20 is connected to the outlet, and at this time, the sample in the first metering tank 22 can be driven to enter the dilution tank 40 via the first accumulator 24; similarly, when the detection value of the second liquid level meter reaches a predetermined value, the controller can control the valve core of the second rotary valve 30 to rotate so that the second inlet of the second rotary valve 30 is connected to the outlet, and at this time, the clean water in the second metering tank 34 can be driven to enter the dilution tank 40 via the second accumulator 36. Therefore, through the technical solution of the utility model, automatic sampling and dilution can be realized, and accurate sampling can be achieved with the help of the first liquid level meter and the second liquid level meter to ensure the accuracy of the sampling and dilution results.

[0030] In some embodiments, the first rotary valve 20 and the second rotary valve 30 are four-way valves. Figure 1 As shown, the first rotary valve 20 may include four inlets ①-④, wherein the inlet ① is connected to the sampling flow path 10, and the inlet ③ is connected to the first accumulator 24. The second rotary valve 30 may include four inlets ①-④, wherein the inlet ① is connected to the clean water storage tank 32, the inlet ③ is connected to the second accumulator 36, and the inlet ② is connected to the cleaning liquid storage tank 50 to be described below.

[0031] The first accumulator 24 and the second accumulator 36 can be configured to provide high-pressure gas, so that under the action of the high-pressure gas, the sample in the first metering tank 22 can be driven into the dilution tank 40, and the clean water in the second metering tank 34 can be driven into the dilution tank 40. In some embodiments, the material of the first rotary valve 20 and the second rotary valve 30 is a high-pressure resistant material (such as PFA plastic, which is a copolymer of a small amount of perfluoropropyl perfluorovinyl ether and polytetrafluoroethylene, and has good high-pressure resistance and corrosion resistance) to withstand the high-pressure environment provided by the first accumulator 24 and the second accumulator 36.

[0032] In some embodiments, the sampling flow path 10 is a circulating flow path, and the liquid sample can circulate in the sampling flow path 10. By designing the sampling flow path 10 as a circulating flow path, the deposition of suspended impurities in the liquid sample or crystallization of high-concentration sample substances in the pipeline can be effectively avoided, cross contamination during the analysis process can be reduced, and real-time updating of the stock solution can be achieved.

[0033] In some embodiments, reference Figure 1 The sampling flow path 10 includes a first branch 12 and a second branch 14 connected to the sample container and a connecting branch 16 connecting the first branch 12 and the second branch 14. The sampling flow path 10 also includes a driving pump 11 (such as a rotor pump) for driving the sample to circulate along the first branch 12, the connecting branch 16 and the second branch 14. Thus, the liquid sample can circulate in the sampling flow path 10.

[0034] In some embodiments, the driving pump 11 is disposed in the connecting branch 16, and the sampling flow path 10 further includes a first solenoid valve 13 disposed in the first branch 12 and a second solenoid valve 15 disposed in the second branch 14. The flow rate and speed of the liquid sample are controlled by the first solenoid valve 13 and the second solenoid valve 15. The first solenoid valve 13 and the second solenoid valve 15 can be communicatively connected to the controller.

[0035] In some embodiments, the liquid sampling and dilution device 100 further includes a filter component disposed upstream of the first inlet of the first rotary valve 20 to filter the sample entering the first rotary valve 20 to avoid clogging.

[0036] In some embodiments, the first metering tank 22 is provided with one or more detection units for detecting pH, temperature and / or composition, and the controller is in communication with the one or more detection units. The controller can further record and store the detected pH, temperature and / or composition data for analysis.

[0037] In some embodiments, the liquid sampling and dilution device 100 further includes a diluent delivery pipeline 42 connected to the dilution tank 40, and the diluent delivery pipeline 42 is used to deliver the diluent to the detection unit. The diluent in the dilution tank 40 can be driven into the diluent delivery pipeline 42 via the first accumulator 24 and / or the second accumulator 36, and delivered to the detection unit for related detection.

[0038] In some embodiments, the liquid sampling and dilution device 100 further includes a cleaning liquid storage tank 50, which is connected to the third inlet of the second rotary valve 30. When the pipeline needs to be cleaned, the valve core of the second rotary valve 30 can be controlled by the controller to rotate so that the third inlet and the outlet of the second rotary valve 30 are connected, and the cleaning liquid (such as clean water) in the cleaning liquid storage tank 50 can enter the second metering tank 34 through the second rotary valve 30. Then, the valve core of the second rotary valve 30 is further controlled to rotate so that the second inlet and the outlet of the second rotary valve 30 are connected, and the cleaning liquid in the second metering tank 34 can be driven to enter the dilution tank 40 through the second accumulator 36, and the cleaning liquid can further enter the first metering tank 22, the first rotary valve 20, and the sampling flow path 10 in sequence to complete the cleaning of the relevant components.

[0039] Figure 2 A flow chart showing a liquid sampling and dilution method according to an embodiment of the present utility model is shown as follows: Figure 2 As shown, the method may include: circulating the stock solution; sampling the stock solution, measuring pH and temperature, and filtering the stock solution; measuring the volume of the stock solution and clean water respectively and then mixing them for dilution; and performing remote sample delivery, intelligent sample management, analyzer detection, and data uploading on the diluted solution.

[0040] Those skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the above embodiments of the present invention, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A liquid sampling and dilution device (100), It is characterized in that include: A sampling flow path (10), the sampling flow path (10) being used to communicate with a sample container; A first rotary valve (20), a first metering tank (22), and a first accumulator (24), wherein the first rotary valve (20) has a plurality of inlets and an outlet connected to the first metering tank (22), the valve core of the first rotary valve (20) can be rotated to connect any inlet of the first rotary valve (20) with the outlet, the first inlet and the second inlet of the plurality of inlets of the first rotary valve (20) are connected to the sampling flow path (10) and the first accumulator (24) respectively, and the first metering tank (22) is provided with a first liquid level gauge; a second rotary valve (30), a clean water storage tank (32), a second metering tank (34), and a second accumulator (36); the second rotary valve (30) has a plurality of inlets and an outlet connected to the second metering tank (34); the valve core of the second rotary valve (30) can rotate so that any inlet of the second rotary valve is connected to the outlet; a first inlet and a second inlet of the plurality of inlets of the second rotary valve (30) are connected to the clean water storage tank (32) and the second accumulator (36), respectively; and the second metering tank (34) is provided with a second liquid level gauge; a dilution tank (40), connected to the first metering tank (22) and the second metering tank (34); A controller is communicatively connected with the first liquid level meter, the second liquid level meter, the first rotary valve (20) and the second rotary valve (30).

2. The device (100) according to claim 1, It is characterized in that The sampling flow path (10) is a circulation flow path.

3. The device (100) according to claim 2, It is characterized in that The sampling flow path (10) comprises a first branch (12) and a second branch (14) connected to the sample container, and a connecting branch (16) connecting the first branch (12) and the second branch (14). The sampling flow path (10) also comprises a driving pump (11) for driving the sample to circulate along the first branch (12), the connecting branch (16) and the second branch (14).

4. The device (100) according to claim 3, It is characterized in that The driving pump (11) is arranged on the connecting branch (16), and the sampling flow path (10) further comprises a first electromagnetic valve (13) arranged on the first branch (12) and a second electromagnetic valve (15) arranged on the second branch (14).

5. The device (100) according to claim 1, It is characterized in that It also includes a filtering component arranged upstream of the first inlet of the first rotary valve (20).

6. The device (100) according to claim 1, It is characterized in that The first metering tank (22) is provided with one or more detection parts for detecting pH, temperature and / or ingredients, and the controller is in communication connection with the one or more detection parts.

7. The device (100) according to claim 1, It is characterized in that It also includes a diluent delivery pipeline (42) connected to the dilution tank (40), and the diluent delivery pipeline (42) is used to deliver the diluent to the detection unit.

8. The device (100) according to claim 1, It is characterized in that The invention also comprises a cleaning liquid storage tank (50), wherein the cleaning liquid storage tank (50) is connected to the third inlet of the second rotary valve (30).

9. The device (100) according to claim 1, It is characterized in that The first rotary valve (20) and the second rotary valve (30) are four-way valves.

10. The device (100) according to claim 1, It is characterized in that The first rotary valve (20) and the second rotary valve (30) are made of high-pressure resistant material.

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