Solution impurity filtering device for chromatographic instrument

Abstract

The utility model provides a solution impurity filtering device for a chromatograph. The solution impurity filtering device comprises a shell, an access cover is arranged on one side of the shell, a belt is in transmission connection between a limiting ring and a belt pulley, a feeding pipe is arranged on the shell, a collecting plate is arranged in the shell, a discharging pipe is fixedly communicated with the collecting plate, and a cleaning assembly is arranged on the shell; the water pump is arranged on the surface of the shell, a water inlet of the water pump fixedly communicates with a water inlet pipe, a water outlet of the water pump fixedly communicates with a water conveying pipe, and water spraying holes are formed in the surface of the water conveying pipe at equal intervals. External cleaning liquid or water is pumped into the water conveying pipe through the water inlet pipe by the water pump and sprayed out from the water spraying holes to wash the surface of the filter cartridge, so that the influence of solution residue on next solution filtration is avoided, the problem that the detection result is influenced by solution mixing is solved, and in addition, residual impurities in the filter cartridge can be flushed out, so that the detection efficiency is improved. Impurities are prevented from being attached to the inner wall of the filter cartridge.

Description

Technical Field

[0001] The utility model relates to the technical field of chromatograph solution impurity filtration, in particular to a solution impurity filtration device for a chromatograph. Background Technique

[0002] A chromatograph is a device used for chromatographic separation and analysis. It includes an injection system, a detection system, a recording and data processing system, a temperature control system, a mobile phase control system, etc. Modern chromatographs have the characteristics of high stability, sensitivity, versatility, and automation. There are gas chromatographs, liquid chromatographs, gel chromatographs, etc. These chromatographs are widely used for the analysis of certain contents of chemical products and polymer materials. Gel chromatography can also determine the molecular weight and its distribution of polymer materials. A chromatograph is a device that can be used for chromatographic separation and analysis and can be used to detect chemical substances in solution state.

[0003] At present, Chinese Patent No. CN213253353U discloses a solution impurity filtration device for a chromatograph, which includes a box body. One side center position of the top of the box body is fixedly installed with a funnel. One end of the funnel is fixedly installed with a pipeline. One side center position inside the box body is fixedly and obliquely installed with a back plate. Two corners on one side surface of the back plate are fixedly installed with first support rods. The other two corners on one side surface of the back plate are fixedly installed with second support rods. One end of the first support rod is fixedly installed with a first connecting rod. One end of the first connecting rod is fixedly connected with one end of the second support rod. One end of the first connecting rod is fixedly installed with a second connecting rod. The other end of the first connecting rod is fixedly installed with a third connecting rod.

[0004] The above-mentioned solution impurity filtration device for a chromatograph can effectively filter impurities in the solution by setting a motor, a transmission wheel, a belt, a first fixing ring, and a filtering drum. Its structure is simpler and the effect is more obvious than that of general filtering devices. However, it still has the following defects:

[0005] It is not convenient to clean the surface of the filtering cylinder, and there is a problem of mutual influence of liquids during use, which affects the detection results of the chromatograph. Content of the Utility Model

[0006] The utility model aims to solve the problems raised in the background technique and provides a solution impurity filtration device for a chromatograph.

[0007] The specific technical solutions are as follows:

[0008] A solution impurity filtering device for a chromatograph comprises: a solution impurity filtering mechanism for a chromatograph, the solution impurity filtering mechanism comprising a shell, a maintenance cover is arranged on one side of the shell, a limit plate is rotatably connected in the shell, a roller is fixedly connected on one side of the limit plate, a filter cartridge is rotatably connected on the roller, a mounting frame is fixedly connected in the shell, a motor is fixedly mounted on the mounting frame, a pulley is fixedly connected to the output shaft end of the motor, a limit ring is fixedly connected to the surface of the filter cartridge, a belt is transmission-connected between the limit ring and the pulley, a feed pipe is arranged on the shell, a collecting plate is arranged in the shell, a discharge pipe is fixedly connected on the collecting plate, and a cleaning component is arranged on the shell;

[0009] The cleaning component comprises a water pump, which is arranged on the surface of the shell. The water inlet of the water pump is fixedly connected with a water inlet pipe, and the water outlet of the water pump is fixedly connected with a water pipe. The surface of the water pipe has water spray holes in an equidistant array.

[0010] The solution impurity filtering device of the above-mentioned chromatograph, wherein: the water delivery pipe is arranged inside the filter cartridge, and the water delivery pipe and the inner wall of the filter cartridge do not contact each other.

[0011] The above-mentioned solution impurity filtering device of the chromatograph, wherein: the filter cartridge is arranged at an angle, a feed port is opened at one end of the filter cartridge, a slag discharge plate is fixedly connected in the shell, and the slag discharge plate is arranged below the filter cartridge.

[0012] The above-mentioned solution impurity filtering device of the chromatograph, wherein: the feed pipe enters the filter cartridge from the feed inlet, and the feed pipe and the feed inlet do not contact each other.

[0013] The above-mentioned solution impurity filtering device of the chromatograph, wherein: the limiting ring is arranged at the center position of the surface of the filter cartridge, and the depth of the limiting ring is the same as the thickness of the belt.

[0014] The above-mentioned solution impurity filtering device of the chromatograph, wherein: the collecting plate is arranged obliquely inside the shell, the collecting plate is arranged below the slag discharge plate, and the feeding pipe is arranged at a lower position on the surface of the collecting plate.

[0015] The solution impurity filtering device of the above-mentioned chromatograph, wherein: a discharge port is provided on the surface of the inspection cover, and the slag discharge plate is arranged in an arc shape.

[0016] The utility model has the following beneficial effects:

[0017] The external cleaning liquid or water is pumped into the water pipe through the water inlet pipe by a water pump, and sprayed out from the water spray hole to rinse the surface of the filter cartridge to avoid solution residue affecting the next solution filtration, thereby solving the problem of solution mixing affecting the test results. In addition, the impurities remaining inside the filter cartridge can be flushed out to prevent the impurities from adhering to the inner wall of the filter cartridge. Brief Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of the solution impurity filtering device of the chromatograph provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic structural diagram of the interior of the housing of the solution impurity filtering device of the chromatograph provided by an embodiment of the present utility model;

[0020] Figure 3 It is a schematic structural diagram of the filter cartridge in the solution impurity filtering device of the chromatograph provided by an embodiment of the present utility model;

[0021] Figure 4 It is a schematic structural diagram of the cleaning assembly in the solution impurity filtering device of the chromatograph provided by an embodiment of the present utility model.

[0022] In the drawings:

[0023] 1. Housing; 2. Maintenance cover; 3. Limiting plate; 4. Roller; 5. Filter cartridge; 6. Limiting ring; 7. Belt; 8. Motor; 9. Belt pulley; 10. Mounting frame; 11. Feed inlet; 12. Cleaning assembly; 1201. Water pump; 1202. Water inlet pipe; 1203. Water delivery pipe; 1204. Spray holes; 13. Collection plate; 14. Discharge pipe; 15. Slag discharge plate; 16. Feed pipe; 17. Discharge port. Detailed Description of the Embodiment

[0024] The technical solution of the present utility model will be further described below in conjunction with the drawings and through specific embodiments.

[0025] Among them, the drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and should not be construed as a limitation of this patent; in order to better illustrate the embodiments of the present utility model, some components in the drawings will be omitted, enlarged or reduced, and do not represent the dimensions of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0026] In the drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] In the description of the present utility model, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, such terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. Embodiment

[0028] The solution impurity filtering device of the chromatograph provided in this embodiment is as Figures 1-4 shown, and includes: a solution impurity filtering mechanism for a chromatograph. The solution impurity filtering mechanism includes a housing 1, a maintenance cover 2 is arranged on one side of the housing 1, a limiting plate 3 is rotatably connected inside the housing 1, a roller 4 is fixedly connected to one side of the limiting plate 3, a filter cylinder 5 is rotatably connected to the roller 4, a mounting bracket 10 is fixedly connected inside the housing 1, a motor 8 is fixedly installed on the mounting bracket 10, a pulley 9 is fixedly connected to the output shaft end of the motor 8, a limiting ring 6 is fixedly connected to the surface of the filter cylinder 5, and a belt 7 is drivingly connected between the limiting ring 6 and the pulley 9. A feed pipe 16 is arranged on the housing 1, a collecting plate 13 is arranged inside the housing 1, a discharge pipe 14 is fixedly communicated with the collecting plate 13, and a cleaning assembly 12 is arranged on the housing 1;

[0029] The cleaning assembly 12 includes a water pump 1201. The water pump 1201 is arranged on the surface of the housing 1. The water inlet of the water pump 1201 is fixedly communicated with a water inlet pipe 1202, and the water outlet of the water pump 1201 is fixedly communicated with a water delivery pipe 1203. Water spraying holes 1204 are equidistantly arranged in an array on the surface of the water delivery pipe 1203.

[0030] The solution impurity filtering device of the chromatograph adopting the above technical solution mainly pumps external cleaning liquid or water into the water delivery pipe 1203 through the water pump 1201 through the water inlet pipe 1202, and sprays it out from the water spraying holes 1204 to wash the surface of the filter cylinder 5, avoiding the influence of solution residue on the next solution filtration, thereby solving the problem that solution mixing affects the detection result. It can also flush out the impurities remaining inside the filter cylinder 5 to avoid the attachment of impurities to the inner wall of the filter cylinder 5.

[0031] In order to wash the inner and outer walls of the filter cylinder 5, the water delivery pipe 1203 is arranged inside the filter cylinder 5, and the water delivery pipe 1203 does not contact the inner wall of the filter cylinder 5. The water delivery pipe 1203 does not affect the rotation of the filter cylinder 5, avoiding the deterioration of the filtering effect caused by the inability of the filter cylinder 5 to rotate.

[0032] In order to improve the filtering effect and slag discharge capacity of the filter cartridge 5, the filter cartridge 5 is inclined. An inlet 11 is provided at one end of the filter cartridge 5. A slag discharge plate 15 is fixedly connected inside the housing 1, and the slag discharge plate 15 is arranged below the filter cartridge 5. The impurities in the filter cartridge 5 are discharged through the slag discharge plate 15.

[0033] In order to facilitate the introduction of the solution to be filtered into the filter cartridge 5, the feed pipe 16 enters the filter cartridge 5 from the inlet 11, and the feed pipe 16 does not contact the inlet 11. The feed pipe 16 does not affect the rotation of the filter cartridge 5.

[0034] In order to facilitate the rotation of the filter cartridge 5, the motor 8 drives the pulley 9 to rotate, so that the belt 7 drives the filter cartridge 5 to rotate to filter the solution. The limit ring 6 is arranged at the central position on the surface of the filter cartridge 5, and the depth of the limit ring 6 is the same as the thickness of the belt 7.

[0035] In order to collect the filtered solution, the collecting plate 13 is inclined and arranged inside the housing 1. The collecting plate 13 is arranged below the slag discharge plate 15, and the discharge pipe 14 is arranged at a lower position on the surface of the collecting plate 13. The solution is collected by the collecting plate 13 and discharged from the discharge pipe 14.

[0036] In order to facilitate the collection of the filtered impurities, a discharge port 17 is provided on the surface of the inspection cover 2, and the slag discharge plate 15 is arc-shaped. The impurities are taken out through the discharge port 17.

[0037] In summary, the solution impurity filtering device of the chromatograph provided in this embodiment has the following advantages:

[0038] During use, the solution to be filtered is put into the filter cartridge 5 through the feed pipe 16, the solution is filtered by the filter cartridge 5, the filtered solution is collected by the collecting plate 13, and finally discharged from the discharge pipe 14. The impurities flow out along the slag discharge plate 15. The filtered solution is sent into the chromatograph through the discharge pipe 14 for analysis of the solution. When it is necessary to wash the filter cartridge 5, start the water pump 1201 to pump water from the water inlet pipe 1202, send it to the water delivery pipe 1203, and spray it out through the spray holes 1204 to wash the inner and outer walls of the filter cartridge 5, avoid the filter cartridge 5 being blocked by impurities, improve the cleaning effect, and avoid solution mixing to ensure the accuracy of the detection results of the chromatograph.

[0039] The above is only a preferred embodiment of the present invention, and it does not limit the implementation manner and protection scope of the present invention. For those skilled in the art, it should be able to realize that all equivalent replacements and obvious changes made by using the description and illustration content of the present invention should be included in the protection scope of the present invention.

Claims

1. Solution impurity filtering device for chromatograph, characterized in that, Comprising: A solution impurity filtering mechanism for a chromatograph, the solution impurity filtering mechanism includes a housing (1), a maintenance cover (2) is arranged on one side of the housing (1), a limiting plate (3) is rotatably connected inside the housing (1), a roller (4) is fixedly connected to one side of the limiting plate (3), a filter cylinder (5) is rotatably connected to the roller (4), a mounting frame (10) is fixedly connected inside the housing (1), a motor (8) is fixedly installed on the mounting frame (10), a pulley (9) is fixedly connected to the output shaft end of the motor (8), a limiting ring (6) is fixedly connected to the surface of the filter cylinder (5), a belt (7) is drivingly connected between the limiting ring (6) and the pulley (9), a feed pipe (16) is arranged on the housing (1), a collecting plate (13) is arranged inside the housing (1), a discharge pipe (14) is fixedly communicated with the collecting plate (13), and a cleaning assembly (12) is arranged on the housing (1); The cleaning assembly (12) includes a water pump (1201), the water pump (1201) is arranged on the surface of the housing (1), a water inlet pipe (1202) is fixedly communicated with the water inlet of the water pump (1201), a water delivery pipe (1203) is fixedly communicated with the water outlet of the water pump (1201), and spray holes (1204) are equidistantly arranged in an array on the surface of the water delivery pipe (1203).

2. The solution impurity filtering device of the chromatograph according to claim 1, characterized in that, The water delivery pipe (1203) is arranged inside the filter cylinder (5), and the water delivery pipe (1203) does not contact the inner wall of the filter cylinder (5).

3. The solution impurity filtering device of the chromatograph according to claim 1, characterized in that, The filter cylinder (5) is inclined, a feed port (11) is opened at one end of the filter cylinder (5), and a slag discharge plate (15) is fixedly connected inside the housing (1), and the slag discharge plate (15) is arranged below the filter cylinder (5).

4. The solution impurity filtering device of the chromatograph according to claim 3, wherein The feed pipe (16) enters the filter cylinder (5) from the feed port (11), and the feed pipe (16) does not contact the feed port (11).

5. The solution impurity filtering device of the chromatograph according to claim 1, characterized in that, The limiting ring (6) is arranged at the middle position on the surface of the filter cylinder (5), and the depth of the limiting ring (6) is the same as the thickness of the belt (7).

6. The solution impurity filtering device of the chromatograph according to claim 3, characterized in that, The collecting plate (13) is inclined and arranged inside the housing (1), the collecting plate (13) is arranged below the slag discharge plate (15), and the discharge pipe (14) is arranged at a position close to the lower part of the surface of the collecting plate (13).

7. The solution impurity filtering device of the chromatograph according to claim 3, characterized in that, A discharge port (17) is opened on the surface of the maintenance cover (2), and the slag discharge plate (15) is arc-shaped.

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