Spherical filler cleaning device

Abstract

The utility model discloses a spherical filler cleaning device which comprises a cleaning cylinder, a filter and a water pump, and the cleaning cylinder, the filter and the water pump are sequentially communicated through pipelines to form a water circulation loop. A feeding port is formed in the top of the cleaning cylinder, a sealing cover is arranged at the feeding port, a discharging port is formed in the bottom of the cleaning cylinder, a discharging valve is arranged at the discharging port, a water inlet and a water outlet are formed in the two sides, close to the bottom of the cleaning cylinder, of the cleaning cylinder respectively, and screens are arranged at the water inlet and the water outlet respectively. The water inlet is communicated with the water outlet end of the water pump through a pipeline, the water outlet is communicated with the water inlet end of the filter through a pipeline, a stirrer is arranged in the cleaning cylinder, and a power device used for driving the stirrer to rotate is arranged on the outer side of the top of the cleaning cylinder. The spherical filler cleaning device cleans the spherical filler through cooperation of circulating water flow and the stirrer, the cleaning effect is good, fine particles on the surface of the spherical filler are effectively removed, and the fine particles are prevented from affecting the separation performance of the chromatographic filler.

Description

Technical Field

[0001] The utility model relates to a spherical filler cleaning device, belonging to the technical field of filler cleaning. Background Art

[0002] At present, in the process of preparing gas chromatography columns, it is often found that even though the packing meets the requirements in terms of performance and particle size range, the finished column still has problems. Through inspection, it is found that the reason is that the packing collides and rubs against each other during screening, packaging, transportation, and storage, which will generate a large amount of powder (fine particles). If these fine particles are not removed, they will affect the performance of the column, mainly manifested in the following two aspects:

[0003] (1) After the filler with powder is prepared into a stationary phase, the surface of the powder will also be coated with a stationary liquid film, which is equivalent to using a mixed filler with a very small particle size filler. It will make the dp parameter in the A term of the van Deemter equation undetermined, resulting in the tailing of the polar component peak;

[0004] (2) The filling column is usually filled by vacuuming the filler into the column. The powder will pass through the gaps between the fillers in the column and move toward the end of the column along the direction of the air flow. The powder will then be concentrated near the end of the column, thereby generating a greater resistance at the end of the column, resulting in a greater front pressure in the chromatographic operation. In addition, the end of the column is blocked by the filler powder, causing the resistance to increase, and the flow rate of the carrier gas will decrease accordingly, thereby making the retention time of the sample components longer and the peaks flatter, so the separation will also deteriorate accordingly.

[0005] Therefore, it is necessary to design a cleaning device for cleaning and removing fine particles on the surface of the filler. Utility Model Content

[0006] The utility model aims to provide a spherical filler cleaning device for cleaning and removing fine particles on the surface of the filler to prevent the fine particles from affecting the separation performance of the chromatographic filler.

[0007] The technical solutions adopted in this utility model are as follows:

[0008] A spherical filler cleaning device includes a cleaning cylinder, a filter and a water pump, wherein the cleaning cylinder, the filter and the water pump are connected in sequence through a pipe to form a water circulation loop; a feeding port is provided at the top of the cleaning cylinder, and a sealing cover for opening and closing the feeding port is provided at the feeding port; a discharge port is provided at the bottom of the cleaning cylinder, and a discharge valve for opening and closing the discharge port is provided at the discharge port; a water inlet and a water outlet are respectively provided on both sides of the cleaning cylinder near the bottom of the cleaning cylinder, and a screen is respectively provided at the water inlet and the water outlet; the water inlet is connected to the water outlet end of the water pump through a pipe, and the water outlet is connected to the water inlet end of the filter through a pipe; an agitator is provided inside the cleaning cylinder, and a power device for driving the agitator to rotate is provided on the outside of the top of the cleaning cylinder.

[0009] As a preferred embodiment of the present invention, a drain pipe is provided on the side wall of the discharge port, a screen is provided at the connection between the drain pipe and the discharge port, and a drain valve is provided on the drain pipe; when the drain valve is opened, the water inside the cleaning cylinder below the water outlet is discharged through the drain pipe.

[0010] As a preferred embodiment of the present invention, the stirrer is a straight-blade paddle stirrer, and the blade edge of the straight-blade paddle stirrer is an arc chamfered structure.

[0011] As a preferred embodiment of the present invention, a three-way valve on the water inlet side is provided at the water inlet end of the water pump, the first inlet of the three-way valve on the water inlet side is connected to the water outlet end of the filter through a pipeline, the second inlet of the three-way valve on the water inlet side is connected to the water supply pipeline, and the outlet of the three-way valve on the water inlet side is connected to the water inlet end of the water pump; it is convenient to inject cleaning water.

[0012] As a preferred embodiment of the present invention, a three-way valve on the water outlet side is provided at the water outlet end of the water pump, the inlet of the three-way valve on the water outlet side is connected to the water outlet end of the water pump, the first outlet of the three-way valve on the water outlet side is connected to the water inlet of the cleaning cylinder through a pipeline, and the second outlet of the three-way valve on the water outlet side is connected to the drainage pipeline; it is convenient to discharge the cleaning water.

[0013] As a preferred embodiment of the present invention, the filter adopts a water inlet and outlet structure with water entering from the top and exiting from the bottom.

[0014] As a preferred embodiment of the present invention, the power device includes a motor and a reducer, and the motor transmits power to the stirrer through the reducer.

[0015] The utility model is beneficial in that:

[0016] The spherical packing is cleaned by using circulating water and a stirrer, which has a good cleaning effect and effectively removes fine particles on the surface of the spherical packing, preventing the fine particles from affecting the separation performance of the chromatographic packing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] The meaning of the reference numerals in the figures:

[0019] 1-cleaning cylinder, 2-filter, 3-water pump, 4-pipeline, 5-feeding port, 6-sealing cover;

[0020] 7-discharge port, 8-discharge valve, 9-agitator, 11-water inlet, 12-water outlet;

[0021] 13-water supply pipe, 14-drainage pipe, 15-drain pipe, 16-drain valve;

[0022] 21-motor, 22-reducer, 31-three-way valve on the water inlet side, 32-three-way valve on the water outlet side. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] like Figure 1 As shown, this embodiment is a spherical filler cleaning device, comprising a cleaning cylinder 1, a filter 2 and a water pump 3, the cleaning cylinder 1, the filter 2 and the water pump 3 are connected in sequence through a pipe 4 to form a water circulation loop; a feeding port 5 is provided at the top of the cleaning cylinder 1, and a sealing cover 6 for opening and closing the feeding port 5 is provided at the feeding port 5, a discharge port 7 is provided at the bottom of the cleaning cylinder 1, and a discharge valve 8 for opening and closing the discharge port 7 is provided at the discharge port 7, a water inlet 11 and a water outlet 12 are respectively provided on both sides of the cleaning cylinder 1 near the bottom of the cleaning cylinder 1, and a screen is respectively provided at the water inlet 11 and the water outlet 12, the screen is used to block the spherical filler and prevent the spherical filler from flowing out of the cleaning cylinder 1 with the water flow; the water inlet 11 is connected to the water outlet end of the water pump 3 through a pipe 4, and the water outlet 12 is connected to the water inlet end of the filter 2 through a pipe 4, an agitator 9 is provided inside the cleaning cylinder 1, and a power device for driving the agitator 9 to rotate is provided on the outer side of the top of the cleaning cylinder 1.

[0025] The power device in this embodiment includes a motor 21 and a reducer 22. The motor 21 transmits power to the agitator 9 through the reducer 22. The agitator 9 in this embodiment adopts a straight-blade paddle agitator, and the blade edge of the straight-blade paddle agitator has a circular arc chamfered structure.

[0026] In order to facilitate the injection and discharge of cleaning water, in this embodiment, an inlet-side three-way valve 31 is provided at the water inlet end of the water pump 3, the first inlet a of the inlet-side three-way valve 31 is connected to the water outlet end of the filter 2 through the pipe 4, the second inlet c of the inlet-side three-way valve 31 is connected to the water supply pipe 13, and the outlet b of the inlet-side three-way valve 31 is connected to the water inlet end of the water pump 3; an outlet-side three-way valve 32 is provided at the water outlet end of the water pump 3, the inlet d of the outlet-side three-way valve 32 is connected to the water outlet end of the water pump 3, the first outlet e of the outlet-side three-way valve 32 is connected to the water inlet 11 of the cleaning cylinder 1 through the pipe 4, and the second outlet f of the outlet-side three-way valve 32 is connected to the drainage pipe 14.

[0027] In this embodiment, a drain pipe 15 is provided on the side wall of the discharge port 7, and a screen is provided at the connection between the drain pipe 15 and the discharge port 7. The screen is used to block the spherical fillers and prevent the spherical fillers from flowing out with the water flow. A drain valve 16 is provided on the drain pipe 15; when the drain valve 16 is opened, the water inside the cleaning cylinder 1 that is below the water outlet 12 is discharged through the drain pipe 15.

[0028] The filter 2 in this embodiment adopts a water inlet and outlet structure with water inlet from top to bottom; the filter 2 is used to filter fine particles carried in the water flow, and the filtered water flow is pumped back into the cleaning cylinder 1 by the water pump 3 for cleaning the spherical filler, thereby realizing the recycling of cleaning water.

[0029] The working process of this embodiment is as follows:

[0030] (1) Open the feeding port 5 and put the spherical filler to be cleaned into the cleaning cylinder 1. At the same time, the three-way valve 31 on the water inlet side controls its own second inlet c and outlet b to form a passage, so that the water supply pipe 13 is connected to the water inlet end of the water pump 3. The three-way valve 32 on the water outlet side controls its own inlet d and first outlet e to form a passage, so that the water outlet end of the water pump 3 is connected to the water inlet 11 of the cleaning cylinder 1. The water pump 3 starts working and injects cleaning water into the cleaning cylinder 1. The water in the cleaning cylinder 1 naturally flows to the filter 2 and the related pipes 4 until the water volume meets the requirements.

[0031] (2) Close the feeding port 5, and the three-way valve 31 on the water inlet side controls its own first inlet a and outlet b to form a passage, so that the water outlet end of the filter 2 is connected to the water inlet end of the water pump 3. The three-way valve 32 on the water outlet side controls its own inlet d and first outlet e to form a passage, so that the water outlet end of the water pump 3 is connected to the water inlet 11 of the cleaning cylinder 1. At this time, a passage for the water circulation loop is formed.

[0032] (3) The water pump 3 starts to work, so that the water in the water circulation loop forms a circulation flow, and the water flows through the cleaning cylinder 1, the filter 2 and the water pump 3 in turn; at the same time, the power device drives the agitator 9 to rotate, and the agitator 9 stirs the spherical filler and water inside the cleaning cylinder 1, so that the water cleans the spherical filler and removes the fine particles on the surface of the spherical filler. The fine particles enter the filter 2 with the water flow, and the filter 2 filters and collects the fine particles carried in the water flow. The filtered water flow is pumped back into the cleaning cylinder 1 by the water pump 3, and the cycle is repeated until the cleaning is completed.

[0033] (4) After cleaning is completed, the three-way valve 31 on the water inlet side controls its own first inlet a and outlet b to form a passage, so that the water outlet end of the filter 2 is connected to the water inlet end of the water pump 3. The three-way valve 32 on the water outlet side controls its own inlet d and second outlet f to form a passage, so that the water outlet end of the water pump 3 is connected to the drainage pipe 14. The water pump 3 starts to work and discharges the cleaning water; the water inside the cleaning cylinder 1 below the water outlet 12 is finally discharged through the drainage pipe 15, and finally the discharge valve 8 is opened to discharge the cleaned spherical filler.

[0034] The utility model utilizes circulating water flow and a stirrer to clean the spherical filler, has good cleaning effect, effectively removes fine particles on the surface of the spherical filler, and prevents the fine particles from affecting the separation performance of the chromatographic filler.

[0035] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0036] In the description of the present invention, it should be noted that: unless otherwise clearly stipulated and limited, the terms "install", "connect", "set", and "form" should be understood in a broad sense; for example: it can be a fixed connection, setting, or a detachable connection, setting, or an integrated structure; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements; for those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention. Those skilled in the art should understand that the above embodiments do not limit the present invention in any form. Any technical solutions obtained by equivalent replacement or equivalent transformation fall within the scope of protection of the present invention.

Claims

1. Spherical packing cleaning device, characterized by: It includes a cleaning cylinder, a filter and a water pump, which are connected in sequence through pipes to form a water circulation loop; a feeding port is provided at the top of the cleaning cylinder, and a sealing cover for opening and closing the feeding port is provided at the feeding port; a discharge port is provided at the bottom of the cleaning cylinder, and a discharge valve for opening and closing the discharge port is provided at the discharge port; a water inlet and a water outlet are respectively provided on both sides of the cleaning cylinder near the bottom of the cleaning cylinder, and screens are respectively provided at the water inlet and the water outlet; the water inlet is connected with the water outlet end of the water pump through a pipe, and the water outlet is connected with the water inlet end of the filter through a pipe; an agitator is provided inside the cleaning cylinder, and a power device for driving the agitator to rotate is provided on the outer side of the top of the cleaning cylinder.

2. The spherical packing cleaning device according to claim 1, characterized in that: A drainage pipe is provided on the side wall of the discharge port, a screen is provided at the connection point between the drainage pipe and the discharge port, and a drainage valve is provided on the drainage pipe.

3. The spherical packing cleaning device according to claim 1, characterized in that: The stirrer is a straight-blade paddle stirrer, and the blade edge of the straight-blade paddle stirrer is an arc chamfered structure.

4. The spherical packing cleaning device according to claim 1, characterized in that: A three-way valve on the water inlet side is provided at the water inlet end of the water pump. The first inlet of the three-way valve on the water inlet side is connected to the water outlet end of the filter through a pipeline, the second inlet of the three-way valve on the water inlet side is connected to the water supply pipeline, and the outlet of the three-way valve on the water inlet side is connected to the water inlet end of the water pump.

5. The spherical packing cleaning device according to claim 1 or 4, characterized in that: A three-way valve on the water outlet side is provided at the water outlet end of the water pump. The inlet of the three-way valve on the water outlet side is connected to the water outlet end of the water pump. The first outlet of the three-way valve on the water outlet side is connected to the water inlet of the cleaning cylinder through a pipeline, and the second outlet of the three-way valve on the water outlet side is connected to the drainage pipe.

6. The spherical packing cleaning device according to claim 1, characterized in that: The filter adopts a water inlet and outlet structure with water entering from the top and exiting from the bottom.

7. The spherical packing cleaning device according to claim 1, characterized in that: The power device includes a motor and a reducer, and the motor transmits power to the stirrer through the reducer.

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