Liquid filtering equipment for ion chromatograph

Abstract

The utility model belongs to the technical field of ion chromatograph appliances, and discloses liquid filtering equipment for an ion chromatograph, which comprises a rack device for placing a beaker and supporting filtration, and a dispersing device arranged in the middle of the rack device and used for rotating, dispersing and filtering, a slow release device for releasing samples in a reciprocating manner is arranged above the dispersing device; the dispersing device comprises a funnel, a filter frame is mounted on the funnel, a micro-membrane is mounted on the bottom surface of the filter frame, a second gear is mounted at the bottom of the funnel, and a first gear is meshed with one side of the second gear. According to the liquid filtering equipment for the ion chromatograph disclosed by the utility model, samples are uniformly distributed on the micro-membrane through the arrangement of releasing the samples by reciprocating movement; through the arrangement of reciprocating movement and superposition of rotation of the micro-membrane, the sample is more uniformly dispersed on the micro-membrane, and filtration is accelerated; through the arrangement of scattered filtering positions, the filtering time is prolonged, and the filtering effect is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of ion chromatograph tools, in particular to a liquid filtering device for an ion chromatograph. Background Art

[0002] Ion chromatograph is a type of high performance liquid chromatography, so it is also called high performance ion chromatography (HPIC) or modern ion chromatography. It is different from traditional ion exchange column chromatography mainly in that the resin has a high degree of cross-linking and a low exchange capacity, the injection volume is very small, and the eluent is usually transported by a plunger pump. The eluent is usually tested for online automatic continuous conductivity. This requires filtering out clean samples.

[0003] In contrast, the Chinese patent with announcement number CN218726972U discloses a liquid filtering device for an ion chromatograph, comprising a base, an inverted L-shaped support plate is connected at the rear edge above the base, a liquid storage tank is connected on the upper side of the L-shaped support plate, a water outlet end on the lower side of the liquid storage tank passes through the upper side wall of the L-shaped support plate and is connected with a control valve, a water outlet pipe is connected on the lower side of the control valve, a feed pipe is rotatably connected on the outer side of the water outlet pipe, a connecting circular frame is slidably sleeved on the outer side of the lower part of the feed pipe, and a water filter bucket is connected on the lower side of the connecting circular frame; an annular baffle is provided on the outer side of the inner part of the feed pipe located on the connecting circular frame, a thread is provided on the outer side of the lower part of the feed pipe located on the lower side of the annular baffle, vertical slideways are respectively provided on the opposite sides of the lower part of the feed pipe located on the lower side of the annular baffle, a circular ring is sleeved on the outer side of the feed pipe located on the lower side of the annular baffle, the circular ring is connected to the inner wall of the connecting circular frame, and the inner wall of the circular ring is provided with convex blocks on the opposite sides, and the other side of the convex block is rotatably engaged with the thread on the outer side of the feed pipe.

[0004] However, the sample release in the above patent is concentrated at the fixed position of the micro-membrane, and the sample cannot be evenly distributed on the micro-membrane, which is easy to accumulate and seriously affects the filtering effect. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of the utility model is to provide a liquid filtering device for an ion chromatograph to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A liquid filtering device for an ion chromatograph comprises a frame device for placing a beaker and supporting filtering, and also comprises a dispersing device for rotating dispersing filtering arranged in the middle of the frame device, and a slow-release device for reciprocatingly releasing a sample is arranged above the dispersing device; the dispersing device comprises a funnel, a filter frame is mounted on the funnel, a micro-membrane is mounted on the bottom surface of the filter frame, a second gear is mounted at the bottom of the funnel, a first gear is meshed with one side of the second gear, and a rotating motor is mounted on the first gear; the slow-release device comprises a linear motor, a movable frame is mounted in front of the linear motor, a locking nail is mounted in front of the movable frame, a lower hopper is mounted in the middle of the movable frame, and an electric control valve is mounted at the bottom of the lower hopper.

[0008] Furthermore, the rack device includes a bottom plate, a fixing frame is arranged on the bottom plate, and a vertical plate is arranged behind the fixing frame.

[0009] Furthermore: a non-slip pad is pasted on the surface of the bottom plate, and the vertical plate and the bottom plate are perpendicular and integrally formed.

[0010] Furthermore: the filter frame and the funnel are plug-in connected, and the micro-membrane and the filter frame are pasted together.

[0011] Furthermore: the second gear is connected to the funnel by bolts, and the first gear is connected to the rotating motor by a flat key.

[0012] Furthermore: the height of the lower hopper is 15 cm, and the movable frame and the linear motor are connected by bolts.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. Release the sample by reciprocating motion to evenly distribute the sample on the micro-membrane;

[0015] 2. Through the setting of reciprocating movement and superimposed micro-membrane rotation, the sample is more evenly dispersed on the micro-membrane, accelerating the filtration;

[0016] 3. By setting up dispersed location filtering, the filtering time is extended and the filtering effect is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a liquid filtering device for an ion chromatograph according to the utility model;

[0018] Figure 2 This is a schematic diagram of a rack device for a liquid filtering device for an ion chromatograph according to the utility model;

[0019] Figure 3 It is a schematic diagram of a dispersion device of a liquid filtering device for an ion chromatograph according to the utility model;

[0020] Figure 4 It is a schematic diagram of a sustained-release device of a liquid filtering device for an ion chromatograph described in the utility model.

[0021] In the accompanying drawings: 1. rack device; 101. bottom plate; 102. fixed frame; 103. anti-slip mat; 104. vertical plate; 2. dispersion device; 201. funnel; 202. filter frame; 203. micro membrane; 204. second gear; 205. first gear; 206. rotating motor; 3. slow release device; 301. linear motor; 302. movable frame; 303. locking pin; 304. lower hopper; 305. electric control valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 A liquid filtration device for an ion chromatograph includes a frame device 1 for placing a beaker and supporting filtration, and also includes a dispersion device 2 for rotating dispersion filtration arranged in the middle of the frame device 1, and a slow release device 3 for reciprocatingly releasing samples is arranged above the dispersion device 2.

[0024] In this embodiment: the rack device 1 includes a bottom plate 101, a non-slip pad 103 is attached to the surface of the bottom plate 101, a fixing frame 102 is arranged on the bottom plate 101, a vertical plate 104 is arranged behind the fixing frame 102, the vertical plate 104 and the bottom plate 101 are perpendicular and integrally formed, the beaker is placed on the non-slip pad 103 of the bottom plate 101 below the funnel 201, the fixing frame 102 supports the rotating motor 206, and the vertical plate 104 supports the linear motor 301 to reciprocate;

[0025] In the present embodiment: the dispersing device 2 comprises a funnel 201, a filter frame 202 is installed on the funnel 201, the filter frame 202 and the funnel 201 are plug-in connected, a micro-membrane 203 is installed on the bottom surface of the filter frame 202, the micro-membrane 203 and the filter frame 202 are pasted together, a second gear 204 is installed at the bottom of the funnel 201, the second gear 204 and the funnel 201 are bolted, a first gear 205 is meshed on one side of the second gear 204, a rotating motor 206 is installed on the first gear 205, the first gear 205 and the rotating motor 206 are flat-keyed, the sample drips from the lower hopper 304 onto the micro-membrane 203 at the bottom of the filter frame 202 for filtration, and the filtrate converges through the funnel 201 and flows into the beaker, the rotating motor 206 drives the first gear 205 to mesh with the second gear 204 to rotate, and the funnel 201 and the micro-membrane 203 are driven to rotate through the second gear 204, so that the sample is more evenly dispersed on the micro-membrane 203, accelerating the filtration;

[0026] In this embodiment: the slow-release device 3 includes a linear motor 301, a movable frame 302 is installed in front of the linear motor 301, the movable frame 302 and the linear motor 301 are bolted, a locking nail 303 is installed in front of the movable frame 302, a lower hopper 304 is installed in the middle of the movable frame 302, the lower hopper 304 is 15 cm high, and an electric control valve 305 is installed at the bottom of the lower hopper 304. The lower hopper 304 is slid up and down in the movable frame 302, the height of the lower hopper 304 is adjusted, and the locking nail 303 is tightened to fix it, the sample is poured into the lower hopper 304, the electric control valve 305 is opened, and the sample drips from the lower hopper 304, the linear motor 301 moves back and forth, and the lower hopper 304 is driven to move back and forth through the movable frame 302, and the sample is evenly spread on the micro membrane 203.

[0027] Working principle: Slide the lower hopper 304 up and down in the movable frame 302, adjust the height of the lower hopper 304, and tighten the locking pin 303 to fix it, pour the sample into the lower hopper 304, place the beaker on the anti-slip pad 103 of the bottom plate 101 below the funnel 201, open the electric control valve 305, and the sample drips from the lower hopper 304 to the micro-membrane 203 at the bottom of the filter frame 202 for filtration, and the filtrate converges through the funnel 201 and flows into the beaker. At the same time, the vertical plate 104 supports the linear motor 301 to move back and forth, and drives the lower hopper 304 to move back and forth through the movable frame 302, and evenly spreads the sample on the micro-membrane 203. The fixed frame 102 supports the rotating motor 206 to drive the first gear 205 to engage the second gear 204 to rotate, and drives the funnel 201 and the micro-membrane 203 to rotate through the second gear 204, so that the sample is more evenly dispersed on the micro-membrane 203, accelerating the filtration.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid filtration device for an ion chromatograph, comprising a frame device (1) for placing a beaker and supporting the filtration, characterized in that: It also includes a dispersion device (2) for rotating dispersion filtration arranged in the middle of the frame device (1), and a slow-release device (3) for reciprocatingly releasing the sample arranged above the dispersion device (2); The dispersion device (2) comprises a funnel (201), a filter frame (202) is mounted on the funnel (201), a micro-membrane (203) is mounted on the bottom surface of the filter frame (202), a second gear (204) is mounted on the bottom of the funnel (201), a first gear (205) is meshed with one side of the second gear (204), and a rotating motor (206) is mounted on the first gear (205); The slow-release device (3) comprises a linear motor (301), a movable frame (302) is installed in front of the linear motor (301), a locking pin (303) is installed in front of the movable frame (302), a lower hopper (304) is installed in the middle of the movable frame (302), and an electric control valve (305) is installed at the bottom of the lower hopper (304).

2. The liquid filtration device for ion chromatograph according to claim 1, characterized in that: The frame device (1) comprises a bottom plate (101), a fixing frame (102) is arranged on the bottom plate (101), and a vertical plate (104) is arranged behind the fixing frame (102).

3. The liquid filtration device for ion chromatograph according to claim 2, characterized in that: An anti-skid pad (103) is adhered to the surface of the bottom plate (101), and the vertical plate (104) and the bottom plate (101) are perpendicular and integrally formed.

4. The liquid filtration device for ion chromatograph according to claim 1, characterized in that: The filter frame (202) and the funnel (201) are plug-in connected, and the micro-membrane (203) and the filter frame (202) are pasted together.

5. The liquid filtration device for ion chromatograph according to claim 1, characterized in that: The second gear (204) and the funnel (201) are connected by bolts, and the first gear (205) and the rotating motor (206) are connected by parallel keys.

6. The liquid filtering device for ion chromatograph according to claim 1, characterized in that: The lower hopper (304) has a height of 15 cm, and the movable frame (302) and the linear motor (301) are connected by bolts.

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