Leacheate protection device

Abstract

The utility model discloses a leacheate protection device, which belongs to the technical field of ion chromatographic analysis instruments and equipment and is technically characterized by comprising a discharge removal component, an injection component and an absorption component. When the ion chromatograph is used, the ion chromatograph comprises the infusion pump, so that the leacheate in the leacheate storage bottle can be input into the ion chromatograph through the infusion pump, and vacuum is formed above the leacheate along with the lowering of the liquid level of the leacheate; air with carbon dioxide preliminarily removed above the carbon dioxide absorption bottle is sucked into the leacheate storage bottle, when the air with the carbon dioxide preliminarily removed is prepared, impurities in external air are removed through the filter membrane, the air is introduced into the carbon dioxide absorption bottle, most of the carbon dioxide is absorbed by the alkaline solution with the high concentration, and the leacheate storage bottle is used for storing the leacheate. A small amount of carbon dioxide is further removed through the carbon dioxide removal molecular sieve, and the one-way valve can ensure that air is led to the leacheate storage bottle during use, so that the leacheate in the leacheate storage bottle is prevented from flowing back.

Description

Technical Field

[0001] The utility model belongs to the technical field of ion chromatography analysis instruments and equipment, and in particular relates to a washing liquid protection device. Background Art

[0002] Ion chromatograph is an instrument widely used in the field of chemical analysis. Its qualitative and quantitative analysis process relies on the separation of ions by eluents. Among the common eluents, hydroxide eluents such as sodium hydroxide and potassium hydroxide are widely used due to their specific chemical properties. These eluents can effectively promote the separation of ions, thereby improving the accuracy and reliability of the analysis. However, the chemical properties of sodium hydroxide and potassium hydroxide are not stable, and they easily react chemically with carbon dioxide in the air. This reaction causes the composition of the eluent to change, resulting in a decrease in the quality of the eluent, which in turn affects the analysis results of the ion chromatograph. Specifically, the deterioration of the eluent may result in poor ion separation, thereby reducing the quantitative precision of the analysis.

[0003] In order to solve this problem, online eluent generators have appeared on the market. This device can generate the required eluent in real time, thus avoiding the deterioration problem that may occur during the storage of the eluent. However, online eluent generators also have some shortcomings. First, its structure is relatively complex and requires professional maintenance and care, which increases the cost of use. Secondly, due to its high cost, it may not be applicable to some laboratories or analytical tasks with low frequency of use. For this reason, we propose an eluent protection device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to provide a washing liquid protection device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The eluent protection device comprises an eluent storage component and an absorption component, wherein an infusion component is installed on the eluent storage component, an injection component is installed on the absorption component, and a discharge and removal component is installed between the eluent storage component and the absorption component;

[0007] Among them, the eluent storage component includes an eluent storage bottle, the absorption component includes a carbon dioxide absorption bottle, the eluent storage bottle and the carbon dioxide absorption bottle are respectively provided with two A connecting holes and two B connecting holes, the injection component includes an injection tube, a filter membrane, a B two-way joint and a B Teflon sealing ring, the B Teflon sealing ring is installed in the B connecting hole, the B two-way joint is installed in the B Teflon sealing ring, the injection tube is installed in the B two-way joint, the filter membrane is provided with two, and the two filter membranes are respectively installed at the upper and lower ends of the injection tube.

[0008] Preferably, the infusion assembly includes an infusion tube, a filter, a C two-way joint and a C Teflon sealing ring, the C Teflon sealing ring is installed in the A connecting hole, the C two-way joint is installed in the C Teflon sealing ring, the infusion tube is installed in the C two-way joint, the filter is arranged inside the eluent storage bottle, and the filter is installed at the end of the C two-way joint.

[0009] Preferably, the emission and removal component includes a discharge pipe assembly, a one-way valve and a carbon dioxide removal molecular sieve, the discharge pipe assembly includes a discharge pipe A, a discharge pipe B and a discharge pipe C, the discharge pipe B is arranged above the discharge pipe A, the discharge pipe C is arranged on the right side of the discharge pipe B, the one-way valve is installed between the discharge pipe A and the discharge pipe B, and the carbon dioxide removal molecular sieve is installed between the discharge pipe B and the discharge pipe C.

[0010] Preferably, the discharge and removal assembly also includes an A two-way joint and an A Teflon sealing ring, and two of the A two-way joints and the A Teflon sealing ring are provided, and the two A two-way joints are respectively installed at the lower ends of the A discharge pipe and the C discharge pipe, and the two A Teflon sealing rings are respectively installed on the A two-way joints.

[0011] Preferably, the two A Teflon sealing rings are respectively installed in the A connecting hole and the B connecting hole, the eluent storage bottle is similar in appearance to the carbon dioxide absorption bottle, and the volume of the eluent storage bottle is larger than that of the carbon dioxide absorption bottle, and the lower port of the C discharge pipe is higher than the lower port of the A discharge pipe.

[0012] Preferably, the eluent storage bottle and the carbon dioxide absorption bottle are both filled with sodium hydroxide solution or potassium hydroxide solution.

[0013] Preferably, the concentration of the sodium hydroxide solution or potassium hydroxide solution in the carbon dioxide absorption bottle is 3-6 times that of the sodium hydroxide solution or potassium hydroxide solution in the eluent storage bottle.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The device has a simple structure, is easy to use, has low cost, and is more easily and universally used. The amount of eluent can be adjusted according to different usage conditions, and the volume of the eluent storage bottle and the carbon dioxide absorption bottle can be changed, so that the device can be suitable for different usage scenarios and frequencies.

[0016] 2. This device can better protect the sodium hydroxide solution or potassium hydroxide solution to prevent the sodium hydroxide solution or potassium hydroxide solution from deteriorating during storage or use, thereby affecting the progress of subsequent experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] Figure 3 It is the first partial sectional exploded view of the utility model;

[0020] Figure 4 It is a second partial sectional exploded view of the utility model;

[0021] Figure 5 It is a partial three-dimensional structural diagram of the utility model.

[0022] In the figure: 1. Eluent storage assembly; 11. Eluent storage bottle; 2. Emission removal assembly; 21. Discharge pipe assembly; 211. A discharge pipe; 212. B discharge pipe; 213. C discharge pipe; 22. A two-way connector; 23. A Teflon sealing ring; 24. One-way valve; 25. Carbon dioxide removal molecular sieve; 3. Injection assembly; 31. Injection pipe; 32. Filter membrane; 33. B two-way connector; 34. B Teflon sealing ring; 4. Infusion assembly; 41. Infusion tube; 42. Filter head; 43. C two-way connector; 44. C Teflon sealing ring; 5. Absorption assembly; 51. Carbon dioxide absorption bottle. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-Figure 5The utility model provides a eluent protection device, comprising an eluent storage component 1 and an absorption component 5, wherein an infusion component 4 is installed on the eluent storage component 1, an injection component 3 is installed on the absorption component 5, and a discharge removal component 2 is installed between the eluent storage component 1 and the absorption component 5;

[0025] Among them, the eluent storage component 1 includes an eluent storage bottle 11, the absorption component 5 includes a carbon dioxide absorption bottle 51, the eluent storage bottle 11 and the carbon dioxide absorption bottle 51 are respectively provided with two A connecting holes and two B connecting holes, the injection component 3 includes an injection tube 31, a filter membrane 32, a B two-way joint 33 and a B Teflon sealing ring 34, the B Teflon sealing ring 34 is installed in the B connecting hole, the B two-way joint 33 is installed in the B Teflon sealing ring 34, the injection tube 31 is installed in the B two-way joint 33, two filter membranes 32 are provided, and the two filter membranes 32 are respectively installed at the upper and lower ends of the injection tube 31.

[0026] Specifically, during specific use, the ion chromatograph includes an infusion pump, which inputs the eluent (sodium hydroxide or potassium hydroxide solution) in the eluent storage bottle 11 into the ion chromatograph. As the eluent level decreases, a vacuum is formed above the eluent, and the air above the carbon dioxide absorption bottle 51 that has been preliminarily free of carbon dioxide is sucked into the eluent storage bottle 11. The air passes through the filter membrane 32 to remove impurities in the air and is passed into the carbon dioxide absorption bottle 51. Since the carbon dioxide absorption bottle 51 is filled with a high-concentration alkaline solution (sodium hydroxide or potassium hydroxide solution), most of the carbon dioxide in the air has been absorbed by the high-concentration alkaline solution, and a small amount of carbon dioxide is further removed through the emission and removal component 2. The emission and removal component 2 ensures that the air passes into the eluent storage bottle 11 to prevent the eluent in the eluent storage bottle 11 from flowing back.

[0027] Furthermore, during use, since the lower port of the injection tube 31 is disposed in an alkaline solution (sodium hydroxide or potassium hydroxide solution) with a relatively high concentration, and the upper port of the injection tube 31 is exposed to the air, and the injection tube 31 is connected via a B two-way joint 33, in order to prevent the carbon dioxide absorption bottle 51 from directly entering the air or the air from which the carbon dioxide has been preliminarily removed is discharged into the air, a B Teflon sealing ring 34 is disposed on the B two-way joint 33, and the B Teflon sealing ring 34 is disposed in one of the B connecting holes, so that air can be prevented from directly entering the carbon dioxide absorption bottle 51 through the gap of the B connecting hole and from being discharged into the air from the air from the carbon dioxide absorption bottle 51. The air from which carbon dioxide is preliminarily removed is discharged into the air. At this time, the external air can only enter the carbon dioxide absorption bottle 51 through the injection tube 31, and react with the alkaline solution with a higher concentration (sodium hydroxide or potassium hydroxide solution), thereby preliminarily removing the carbon dioxide in the air. In order to further remove the carbon dioxide in the air above the alkaline solution inside the carbon dioxide absorption bottle 51, an emission and removal component 2 can be set between the eluent storage bottle 11 and the carbon dioxide absorption bottle 51. The emission and removal component 2 can further remove the carbon dioxide in the air and prevent the eluent inside the eluent storage bottle 11 from flowing back.

[0028] In this embodiment, the infusion assembly 4 includes an infusion tube 41, a filter 42, a C two-way joint 43 and a C Teflon sealing ring 44. The C Teflon sealing ring 44 is installed in the A connecting hole, the C two-way joint 43 is installed in the C Teflon sealing ring 44, the infusion tube 41 is installed in the C two-way joint 43, the filter 42 is arranged inside the eluent storage bottle 11, and the filter 42 is installed at the end of the C two-way joint 43.

[0029] Specifically, during actual use, in order to prevent the eluent (sodium hydroxide or potassium hydroxide solution) inside the eluent storage bottle 11 from deteriorating, the air from which carbon dioxide has been completely removed can be discharged directly to above the inside of the eluent storage bottle 11 (sodium hydroxide or potassium hydroxide solution) during use and storage, thereby isolating the carbon dioxide in the air and preventing the eluent from deteriorating.

[0030] Furthermore, when using the ion chromatograph, the eluent is passed into the ion chromatograph. At this time, it can be connected to the infusion pump of the ion chromatograph through the upper port of the infusion tube 41, and then the lower port of the infusion tube 41 can be placed in the eluent in the eluent storage bottle 11, so that the eluent can be injected into the ion chromatograph. In order to enable the infusion tube 41 to be stably set, the infusion tube 41 is set inside the C two-way joint 43, and in order to prevent external air from entering the eluent storage bottle 11 through the gap of the A connecting hole, thereby causing the eluent to deteriorate, a C Teflon sealing ring 44 can be set on the C two-way joint 43, and the C Teflon sealing ring 44 is set in the A connecting hole to prevent external air from entering the eluent storage bottle 11. In order to prevent impurities from appearing in the eluent, and when the eluent is injected into the ion chromatograph, the impurities enter the ion chromatograph together, a filter head 42 is set at the lower port of the infusion tube 41, so that the eluent can be filtered.

[0031] In this embodiment, the emission and removal component 2 includes a discharge pipe component 21, a one-way valve 24 and a carbon dioxide removal molecular sieve 25. The discharge pipe component 21 includes an A discharge pipe 211, a B discharge pipe 212 and a C discharge pipe 213. The B discharge pipe 212 is arranged above the A discharge pipe 211, and the C discharge pipe 213 is arranged on the right side of the B discharge pipe 212. The one-way valve 24 is installed between the A discharge pipe 211 and the B discharge pipe 212, and the carbon dioxide removal molecular sieve 25 is installed between the B discharge pipe 212 and the C discharge pipe 213; the emission and removal component 2 also includes an A two-way joint 22 and an A Teflon sealing ring 23. Two A two-way joints 22 and two A Teflon sealing rings 23 are each provided. The two A two-way joints 22 are respectively installed at the lower ends of the A discharge pipe 211 and the C discharge pipe 213, and the two A Teflon sealing rings 23 are respectively installed on the A two-way joint 22.

[0032] Specifically, after the preliminary removal of carbon dioxide from the air, in order to further remove the residual carbon dioxide in the air and to inject the air from which carbon dioxide has been removed into the eluent storage bottle 11, this can be achieved through the discharge removal component 2, the A discharge pipe 211 is connected through the A two-way joint 22, and the surface of the A two-way joint 22 is sealed through the A Teflon sealing ring 23 to prevent air from entering the gap of the B connecting hole, and then a one-way valve 24 is set between the A discharge pipe 211 and the B discharge pipe 212 to prevent the subsequent backflow of the eluent in the eluent storage bottle 11, and then a carbon dioxide removal molecular sieve 25 is set between the B discharge pipe 212 and the C discharge pipe 213. The carbon dioxide in the air can be removed again through the carbon dioxide removal molecular sieve 25, and then the air from which carbon dioxide has been completely removed can be injected into the eluent storage bottle 11, so that the eluent in the eluent storage bottle 11 can be protected to prevent the eluent from deteriorating during storage and use.

[0033] In this embodiment, two A Teflon sealing rings 23 are respectively installed in the A connecting hole and the B connecting hole. The eluent storage bottle 11 is similar in appearance to the carbon dioxide absorption bottle 51, and the volume of the eluent storage bottle 11 is larger than that of the carbon dioxide absorption bottle 51. The lower port of the C discharge pipe 213 is higher than the lower port of the A discharge pipe 211.

[0034] Specifically, in order to reduce the probability of backflow of the eluent and to enable the air inside the carbon dioxide absorption bottle 51 to be sucked into the eluent storage bottle 11 as the air pressure inside the eluent storage bottle 11 decreases when the eluent is injected into the ion chromatograph, the lower port of the C discharge pipe 213 is higher than the lower port of the A discharge pipe 211, and in order to store more eluent, the volume of the eluent storage bottle 11 can be larger than the volume of the carbon dioxide absorption bottle 51.

[0035] In this embodiment, both the eluent storage bottle 11 and the carbon dioxide absorption bottle 51 are filled with sodium hydroxide solution or potassium hydroxide solution; the concentration of the sodium hydroxide solution or potassium hydroxide solution in the carbon dioxide absorption bottle 51 is 3-6 times that of the sodium hydroxide solution or potassium hydroxide solution in the eluent storage bottle 11.

[0036] Specifically, during use, in order to prevent the eluent in the eluent storage bottle 11 from deteriorating, air from which carbon dioxide has been removed can be injected into the eluent storage bottle 11. At this time, the eluent in the eluent storage bottle 11 can be prevented from contacting with the carbon dioxide in the air, thereby preventing the eluent from deteriorating. In order to efficiently and quickly remove the carbon dioxide in the air, a high-concentration sodium hydroxide solution or potassium hydroxide solution can be injected into the carbon dioxide absorption bottle 51. The carbon dioxide in the air can be removed more completely by the sodium hydroxide solution or potassium hydroxide solution, and then further removed by the carbon dioxide removing molecular sieve 25, thereby preventing the air from containing carbon dioxide. After that, air can be injected into the eluent storage bottle 11. In order to achieve a better removal effect, the concentration of the sodium hydroxide solution or potassium hydroxide solution in the carbon dioxide absorption bottle 51 is 3-6 times that of the sodium hydroxide solution or potassium hydroxide solution in the eluent storage bottle 11.

[0037] Furthermore, the air from which carbon dioxide is removed in two steps gathers above the liquid level in the eluent storage bottle 11, ensuring that the eluent is not affected by carbon dioxide. 1L of alkaline solution and 2L of eluent can be used continuously for 5-7 days, and the pH value of the eluent fluctuates slightly. The ion chromatographic baseline can be stabilized, ensuring that the components to be tested fully flow out of the chromatographic column, and further improving the quantitative precision of the ion chromatograph.

[0038] The working principle and use process of the utility model are as follows: when in use, since the ion chromatograph includes an infusion pump, the eluent in the eluent storage bottle 11 can be input into the ion chromatograph through the infusion pump. As the eluent level decreases, a vacuum is formed above the eluent, and the air above the carbon dioxide absorption bottle 51 that has been preliminarily free of carbon dioxide is sucked into the eluent storage bottle 11. When preparing the air from which carbon dioxide is preliminarily removed, impurities in the air are removed by the filter membrane 32 from the external air, and the air is passed into the alkaline solution with a higher concentration inside the carbon dioxide absorption bottle 51. Most of the carbon dioxide in the air has been absorbed by the alkaline solution with a higher concentration, and a small amount of carbon dioxide is further removed by the carbon dioxide removal molecular sieve 25. During use, the one-way valve 24 can ensure that the air passes through the eluent storage bottle 11 to prevent the eluent inside the eluent storage bottle 11 from flowing back.

[0039] The electronic components and modules used in the content of this utility model can all be parts commonly used in the market that can realize the specific functions in this case, and the specific models and sizes can be selected and adjusted according to actual needs.

[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. Eluent protection device, characterized in that: The invention comprises an eluent storage component (1) and an absorption component (5), wherein an infusion component (4) is installed on the eluent storage component (1), an injection component (3) is installed on the absorption component (5), and a discharge and removal component (2) is installed between the eluent storage component (1) and the absorption component (5); The eluent storage component (1) comprises an eluent storage bottle (11), the absorption component (5) comprises a carbon dioxide absorption bottle (51), the eluent storage bottle (11) and the carbon dioxide absorption bottle (51) are respectively provided with two A connection holes and two B connection holes, the injection component (3) comprises an injection tube (31), a filter membrane (32), a B two-way joint (33) and a B Teflon sealing ring (34), the B Teflon sealing ring (34) is installed in the B connection hole, the B two-way joint (33) is installed in the B Teflon sealing ring (34), the injection tube (31) is installed in the B two-way joint (33), two filter membranes (32) are provided, and the two filter membranes (32) are respectively installed at the upper and lower ends of the injection tube (31).

2. The eluent protection device according to claim 1, characterized in that: The infusion assembly (4) comprises an infusion tube (41), a filter head (42), a C two-way joint (43) and a C Teflon sealing ring (44); the C Teflon sealing ring (44) is installed in the A connecting hole; the C two-way joint (43) is installed in the C Teflon sealing ring (44); the infusion tube (41) is installed in the C two-way joint (43); the filter head (42) is arranged inside the eluent storage bottle (11), and the filter head (42) is installed at the end of the C two-way joint (43).

3. The eluent protection device according to claim 1, characterized in that: The emission removal component (2) comprises a discharge pipe component (21), a one-way valve (24) and a carbon dioxide removal molecular sieve (25); the discharge pipe component (21) comprises an A discharge pipe (211), a B discharge pipe (212) and a C discharge pipe (213); the B discharge pipe (212) is arranged above the A discharge pipe (211); the C discharge pipe (213) is arranged on the right side of the B discharge pipe (212); the one-way valve (24) is installed between the A discharge pipe (211) and the B discharge pipe (212); and the carbon dioxide removal molecular sieve (25) is installed between the B discharge pipe (212) and the C discharge pipe (213).

4. The eluent protection device according to claim 3, characterized in that: The discharge and removal assembly (2) further comprises an A two-way joint (22) and an A Teflon sealing ring (23), wherein two A two-way joints (22) and two A Teflon sealing rings (23) are provided, and the two A two-way joints (22) are respectively installed at the lower ends of the A discharge inlet pipe (211) and the C discharge inlet pipe (213), and the two A Teflon sealing rings (23) are respectively installed on the A two-way joints (22).

5. The eluent protection device according to claim 4, characterized in that: The two A Teflon sealing rings (23) are respectively installed in the A connecting hole and the B connecting hole. The eluent storage bottle (11) is similar in appearance to the carbon dioxide absorption bottle (51), and the volume of the eluent storage bottle (11) is larger than that of the carbon dioxide absorption bottle (51). The lower port of the C discharge pipe (213) is higher than the lower port of the A discharge pipe (211).

6. The eluent protection device according to claim 1, characterized in that: The eluent storage bottle (11) and the carbon dioxide absorption bottle (51) are both filled with sodium hydroxide solution or potassium hydroxide solution.

7. The eluent protection device according to claim 6, characterized in that: The concentration of the sodium hydroxide solution or potassium hydroxide solution in the carbon dioxide absorption bottle (51) is 3-6 times that of the sodium hydroxide solution or potassium hydroxide solution in the eluent storage bottle (11).

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