Liquid phase degassing device of ion chromatograph

Abstract

The utility model provides a liquid phase degassing device of an ion chromatograph, which belongs to the technical field of ion chromatographs and comprises a chromatograph body, the chromatograph body is connected with a liquid storage cylinder and a pump body, one side of the pump body is provided with a driving motor and a degassing box, the upper end of the degassing box is provided with a transparent sealing cover, a microporous filter membrane is arranged in the degassing box, and the microporous filter membrane is arranged in the pump body. And the degassing assembly can be used for removing bubbles generated by the liquid pumped out by the pump body. The utility model has the beneficial effects that the vibrating reed is poked by the poke rod and is bent, so that the vibrating reed can generate a sound wave vibration effect, a bubble structure in liquid is further damaged, bubbles rise to the water surface and are broken, and meanwhile, the bubbles in the liquid can be split by matching with the degassing wire, so that the generation of the bubbles is reduced, and the quality of the liquid is improved. In the process, the vibrating plate can clean impurities attached to the outer surface of the microporous filter membrane, and the degassing and filtering efficiency is further improved, so that the accuracy of a detection result is ensured, and damage to internal elements is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of ion chromatographs, and more specifically, to a liquid phase degassing device for an ion chromatograph. Background Art

[0002] Ion chromatography is a type of high performance liquid chromatography, also known as high performance ion chromatography or modern ion chromatography. The main difference from traditional ion exchange column chromatography is that the resin has a high degree of crosslinking and a low exchange capacity, and the injection volume is very small.

[0003] An ion chromatograph is a type of high performance liquid chromatograph. It is mainly used for the analysis of environmental samples, including anions and cations in surface water, drinking water, rainwater, domestic sewage and industrial wastewater, acid deposition and atmospheric particulate matter, as well as the analysis of trace impurities in water and reagents related to the microelectronics industry. However, when the existing ion chromatograph is in use, the liquid coming out of the constant flow pump is prone to generating bubbles. These bubbles may interfere with the sample separation and detection processes, affecting the accuracy and repeatability of the analysis results, and the bubbles may cause damage to some sensitive components of the ion chromatograph. For example, in some cases, the bubbles may pass through the packing in the liquid chromatography column, destroying the structure of the stationary phase and resulting in a decrease in column efficiency. How to invent a liquid phase degassing device for an ion chromatograph to improve these problems has become an urgent problem for those skilled in the art. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a liquid phase degassing device for an ion chromatograph, aiming to improve the problems that bubbles may interfere with the sample separation and detection processes, affecting the accuracy and repeatability of the analysis results, and the bubbles may cause damage to some sensitive components of the ion chromatograph.

[0005] The utility model is implemented as follows:

[0006] The utility model provides a liquid phase degassing device for an ion chromatograph, including a chromatograph body. The chromatograph body is connected with a liquid storage cylinder and a pump body. One side of the pump body is provided with a driving motor and a degassing box. The upper end of the degassing box is provided with a transparent sealing cover. The inside of the degassing box is provided with a microporous filter membrane, and further includes:

[0007] A degassing component, which is located inside the degassing box and can be used to remove the bubbles generated by the liquid pumped out by the pump body.

[0008] Preferably, the water inlet end of the pump body is fixedly connected with the liquid storage cylinder, the water drainage end of the pump body is fixedly connected with the degassing box, and the liquid storage cylinder and the pump body are fixedly connected with the chromatograph body.

[0009] Preferably, the drive motor is fixedly connected to the chromatograph body, the drive motor is located at one side of the degassing box, the output end of the drive motor is fixedly connected to a driving wheel, and the driving wheel is connected to a transmission belt.

[0010] Preferably, a middle side wall of the degassing box is fixedly connected to a limiting frame, the limiting frame is sleeved on the outside of the microporous filter membrane, and a vibration plate is fixedly connected to one side of the limiting frame.

[0011] By adopting the above technical solution, the vibration plate can be made to swing up and down, thereby generating a vibration effect to clean the impurities attached to the surface of the microporous filter membrane.

[0012] Preferably, the degassing assembly includes a rotating shaft and a mounting bar, each of which is provided with a pair, the mounting bar is fixedly connected to the lower inner wall of the degassing box, the mounting bar is located below the rotating shaft, and a plurality of evenly distributed vibration plates are fixedly connected to the upper side wall of the mounting bar.

[0013] Preferably, one end of the rotating shaft is rotatably connected to the side wall of the degassing box, and the other end of the rotating shaft is the side wall of the degassing box. The end of the rotating shaft located outside the degassing box is fixedly connected to a driven wheel, and the driven wheel and the driving wheel are connected through a transmission belt.

[0014] Preferably, the side walls at both ends of the rotating shaft are fixedly connected with side plates, a plurality of fixed rods are distributed in a circular array on the opposite side walls of each pair of side plates, a plurality of evenly distributed degassing threads are arranged between two adjacent fixed rods, and the outer wall of each fixed rod is fixedly connected with a plurality of toggle rods corresponding to the vibration plate.

[0015] By adopting the above technical solution, the water pump and the drive motor can be started, so that the drive motor drives the rotating shaft to rotate through the driving wheel, the transmission belt and the driven wheel, and then the side plate drives the fixed rod to rotate around the rotating shaft as the axis. In this process, the toggle rod on one side of the microporous filter membrane squeezes and vibrates the vibration plate. At the same time, during the rotation of the rotating shaft, the toggle rod toggles the vibration plate. When the toggle rod is separated from the vibration plate, the vibration plate itself vibrates, thereby generating a sound wave vibration effect, thereby destroying the bubble structure, causing it to rise to the water surface and burst, thereby performing degassing treatment.

[0016] The beneficial effects of the utility model are:

[0017] When the chromatograph is working, the toggle lever can toggle the vibrating piece and make it bend. When the toggle lever separates from the vibrating piece, the vibrating piece vibrates by itself and produces an acoustic vibration effect, thereby destroying the bubble structure in the liquid, causing the bubbles to rise to the water surface and burst. Degassing is carried out through periodic vibration. At the same time, the degassing wire can cut the bubbles in the liquid to reduce the generation of bubbles. During this process, the toggle lever will periodically squeeze and vibrate the vibrating plate, which can make the vibrating plate swing up and down, thereby generating a vibration effect to clean the impurities attached to the outer surface of the microporous filter membrane, further improving the degassing efficiency, ensuring the accuracy of the detection results and reducing the damage to internal components. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic diagram of the overall structure of a liquid phase degassing device of an ion chromatograph provided by an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of a degassing box of a liquid phase degassing device of an ion chromatograph provided by an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the internal structure of a degassing box of a liquid phase degassing device of an ion chromatograph provided by an embodiment of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of a degassing component of a liquid phase degassing device of an ion chromatograph provided by an embodiment of the present invention.

[0023] In the figure: 1, chromatograph body; 2, liquid storage cylinder; 3, pump body; 4, drive motor; 5, degassing box; 6, transparent sealing cover; 7, vibrating plate; 8, microporous filter membrane; 9, degassing component; 91, driven wheel; 92, rotating shaft; 93, side plate; 94, toggle lever; 95, fixed rod; 96, mounting strip; 97, vibrating piece; 98, degassing wire; 10, driving wheel; 11, transmission belt; 12, limiting frame. Detailed Embodiments

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example, see Figures 1 - 4 A liquid phase degassing device for an ion chromatograph comprises a chromatograph body 1, the chromatograph body 1 is connected with a liquid storage cylinder 2 and a pump body 3, a driving motor 4 and a degassing box 5 are arranged on one side of the pump body 3, a transparent sealing cover 6 is arranged on the upper end of the degassing box 5, and a microporous filter membrane 8 is arranged inside the degassing box 5, characterized in that it also comprises:

[0026] The degassing component 9 is located inside the degassing box 5 and can be used to remove bubbles generated when the pump body 3 pumps out liquid.

[0027] Furthermore, the drive motor 4 is fixedly connected to the chromatograph body 1, the drive motor 4 is located on one side of the degassing box 5, the output end of the drive motor 4 is fixedly connected to the driving wheel 10, and the driving wheel 10 is connected to the transmission belt 11; the degassing component 9 includes a rotating shaft 92 and a mounting bar 96, the rotating shaft 92 and the mounting bar 96 are each provided with a pair, the mounting bar 96 is fixedly connected to the inner wall of the lower end of the degassing box 5, the mounting bar 96 is located below the rotating shaft 92, and the upper side wall of the mounting bar 96 is fixedly connected to a number of evenly distributed vibration plates 97; one end of the rotating shaft 92 is connected to the side wall of the degassing box 5 Rotationally connected, the other end of the rotating shaft 92 is on the side wall of the degassing box 5, and one end of the rotating shaft 92 located outside the degassing box 5 is fixedly connected to a driven wheel 91, and the driven wheel 91 and the driving wheel 10 are connected through a transmission belt 11; the side walls at both ends of the rotating shaft 92 are fixedly connected to side plates 93, and a number of fixed rods 95 are distributed in a circular array on the opposite side walls of each pair of side plates 93, and a number of evenly distributed degassing threads 98 are arranged between two adjacent fixed rods 95, and the outer wall of each fixed rod 95 is fixedly connected to a number of toggle rods 94 corresponding to the vibration plate 97.

[0028] It should be noted that the water pump 3 and the drive motor 4 can be started, so that the drive motor 4 drives the rotating shaft 92 to rotate through the driving wheel 10, the transmission belt 11 and the driven wheel 91. Subsequently, the fixed rod 95 is driven by the side plate 93 to rotate around the rotating shaft 92 as the axis. During the rotation of the rotating shaft 92 itself, the toggle rod 94 can drive to toggle the vibrating plate 97 and bend it. When the toggle rod 94 is separated from the vibrating plate 97, the vibrating plate 97 vibrates itself and generates a sound wave vibration effect, thereby destroying the bubble structure in the liquid, causing the bubbles to rise to the water surface and burst, so as to perform degassing treatment. At the same time, when the rotating shaft 92 rotates, a plurality of degassing filaments 98 can be driven to cut the bubbles in the liquid to reduce the generation of bubbles.

[0029] Refer to Figures 1 - 3 , further; the water inlet end of the pump body 3 is fixedly connected to the liquid storage cylinder 2, the water drainage end of the pump body 3 is fixedly connected to the degassing box 5, and the liquid storage cylinder 2 and the pump body 3 are fixedly connected to the chromatograph body 1; a limiting frame 12 is fixedly connected to the middle side wall of the degassing box 5, the limiting frame 12 is sleeved outside the microporous filter membrane 8, and a vibrating plate 7 is fixedly connected to one side of the limiting frame 12.

[0030] It should be noted that: during the rotation of the rotating shaft 92, the toggle rod 94 on one side of the microporous filter membrane 8 will periodically squeeze and vibrate the vibrating plate 7, which can make the vibrating plate 7 swing up and down, thereby generating a vibration effect to clean the impurities attached to the surface of the microporous filter membrane 8 to improve the filtering effect. And when the liquid level inside the degassing box 5 rises, the liquid can be further vibrated to lift the bubbles to the water surface and cause them to burst.

[0031] The working principle of the liquid phase degassing device of this ion chromatograph: The water pump 3 and the drive motor 4 can be started, so that the rotating shaft 92 of the drive motor 4 rotates, and then drives the fixed rod 95 to rotate. During the rotation of the rotating shaft 92 itself, the toggle rod 94 can drive to toggle the vibrating plate 97 and bend it. When the toggle rod 94 is separated from the vibrating plate 97, the vibrating plate 97 vibrates itself and generates a sound wave vibration effect, thereby destroying the bubble structure in the liquid, causing the bubbles to rise to the water surface and burst, and performing degassing through periodic vibration. At the same time, the fixed rod 95 drives a plurality of degassing filaments 98 to cut the bubbles in the liquid to reduce the generation of bubbles. During the rotation of the rotating shaft 92, the toggle rod 94 will periodically squeeze and vibrate the vibrating plate 7, which can make the vibrating plate 7 swing up and down, thereby generating a vibration effect to clean the impurities attached to the surface of the microporous filter membrane 8. And when the liquid level inside the degassing box 5 rises, the liquid can be further vibrated to lift the bubbles to the water surface and cause them to burst. Finally, the degassed and filtered liquid is transported to the inside of the chromatograph body 1 through the connecting pipe.

[0032] It should be noted that the specific model and specifications of the motor need to be selected according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in the field, so it will not be elaborated in detail here.

[0033] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A liquid phase degassing device for an ion chromatograph, comprising a chromatograph body (1), the chromatograph body (1) is connected to a liquid storage cylinder (2) and a pump body (3), a driving motor (4) and a degassing box (5) are arranged on one side of the pump body (3), a transparent sealing cover (6) is arranged at the upper end of the degassing box (5), a microporous filter membrane (8) is arranged inside the degassing box (5), and it is characterized in that, Also includes: A degassing component (9), the degassing component (9) is located inside the degassing box (5), and the degassing component (9) can be used to remove bubbles generated by the liquid pumped out by the pump body (3).

2. The liquid phase degassing device of an ion chromatograph according to claim 1, characterized in that, The water inlet end of the pump body (3) is fixedly connected to the liquid storage cylinder (2), the water discharge end of the pump body (3) is fixedly connected to the degassing box (5), and the liquid storage cylinder (2) and the pump body (3) are fixedly connected to the chromatograph body (1).

3. The liquid phase degassing device of an ion chromatograph according to claim 1, characterized in that, The drive motor (4) is fixedly connected to the chromatograph body (1), the drive motor (4) is located on one side of the degassing box (5), the output end of the drive motor (4) is fixedly connected to a driving wheel (10), and the driving wheel (10) is connected to a transmission belt (11).

4. The liquid phase degassing device of an ion chromatograph according to claim 1, characterized in that, The middle side wall of the degassing box (5) is fixedly connected to a limiting frame (12), the limiting frame (12) is sleeved on the outside of the microporous filter membrane (8), and one side of the limiting frame (12) is fixedly connected to a vibration plate (7).

5. The liquid phase degassing device of an ion chromatograph according to claim 3, characterized in that, The degassing assembly (9) comprises a rotating shaft (92) and a mounting bar (96), each of the rotating shaft (92) and the mounting bar (96) being provided with a pair, the mounting bar (96) being fixedly connected to the inner wall of the lower end of the degassing box (5), the mounting bar (96) being located below the rotating shaft (92), and a plurality of evenly distributed vibration plates (97) being fixedly connected to the upper side wall of the mounting bar (96).

6. The liquid phase degassing device of an ion chromatograph according to claim 5, characterized in that, One end of the rotating shaft (92) is rotatably connected to the side wall of the degassing box (5), and the other end of the rotating shaft (92) is attached to the side wall of the degassing box (5). One end of the rotating shaft (92) located outside the degassing box (5) is fixedly connected to a driven wheel (91), and the driven wheel (91) and the driving wheel (10) are connected in transmission via a transmission belt (11).

7. The liquid phase degassing device of an ion chromatograph according to claim 5, wherein, The side walls at both ends of the rotating shaft (92) are fixedly connected with side plates (93), and a plurality of fixed rods (95) are distributed in a circular array on the opposite side walls of each pair of the side plates (93), and a plurality of evenly distributed degassing threads (98) are provided between two adjacent fixed rods (95), and the outer wall of each fixed rod (95) is fixedly connected with a plurality of toggle rods (94) corresponding to the vibration plate (97).

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