Automatic filtering device used before water sample detection of ion chromatograph

Abstract

The utility model discloses an automatic filtering device used before water sample detection of an ion chromatograph, which comprises a shell, a partition plate is arranged in the shell to divide the inner space of the shell into an upper layer and a lower layer, a water sample storage box, a sample injection pump and a filtering assembly are fixedly arranged on the upper layer, and a filtrate collecting box is fixedly arranged on the lower layer. A liquid inlet pipe is arranged above the water sample storage tank and extends to the position above the shell, an inlet and an outlet of the sample injection pump are connected with the water sample storage tank and the filtering assembly through hoses respectively, the filtering assembly is composed of a filtering cavity and a 0.45-micron filter, and a hose is arranged at an outlet of the filtering assembly and introduced into the filtrate collecting tank. A liquid outlet pipe is arranged at the bottom of the filtrate collecting box and connected to the outer side of the shell. According to the utility model, the water sample filtering is changed from the traditional manual filtering mode to the full-automatic filtering mode. And labor-consuming syringe operation is not needed, so that the filtering efficiency is greatly improved, and the labor intensity of operators is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to water sample filtration technical field, concretely relates to an automatic filter device for ion chromatograph water sample detection. BACKGROUND

[0002] The ion chromatograph can measure the content and variation trend of sodium, potassium and other metal ions and chloride ions and nitrite ions dissolved in the produced water in the coalbed gas development process, and has important guiding significance for guiding the coalbed gas drainage. The coal powder and solid impurities insoluble in water can easily contaminate the ion chromatographic column of the ion chromatograph, and the water sample needs to be filtered through a 0.45um filter to remove impurities and particulate matter, so as to avoid contaminating the ion chromatographic column.

[0003] At present, a 0.45um filter is usually added in front of the syringe for manual filtration. This method not only is laborious and inefficient, but also easily introduces air to cause human error and affect the reliability of the detection result. The Chinese utility model patent with publication number CN218726972U proposes a liquid filter device for ion chromatograph, which improves the efficiency of impurity filtration, but the structure is relatively complex, and there are problems such as high use cost in actual application. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the utility model provides an automatic filter device for ion chromatograph water sample detection, which can quickly and effectively remove water sample impurities.

[0005] The utility model adopts the following technical scheme: an automatic filter device for ion chromatograph water sample detection before detection, including shell, the inside of shell is provided with partition and divides the inside space of shell into two layers, the upper layer is fixedly installed water sample storage tank, sample pump and filter assembly, the lower layer is fixedly installed filtrate collection tank, the top of water sample storage tank is provided with liquid inlet pipe and extends to the top of shell, the inlet and outlet of sample pump are connected with water sample storage tank and filter assembly through hose respectively, filter assembly is composed of filter cavity and 0.45um filter, the outlet of filter assembly is provided with hose and introduced into filtrate collection tank, the bottom of filtrate collection tank is provided with liquid outlet pipe and connected to the outside of shell.

[0006] Further, the upper opening of the liquid inlet pipe is funnel-shaped.

[0007] Further, an automatic air vent valve is included, which is arranged above the water sample storage tank and the filtrate collection tank.

[0008] Further, a control panel is included, the sample pump is driven by a motor, and the control panel is electrically connected to the motor to control the flow rate of the sample pump by controlling the rotational speed of the motor.

[0009] Further, the control panel is arranged on the side of the shell.

[0010] Furthermore, an electric valve is installed on the liquid outlet pipe, and the electric valve is electrically connected to the control panel.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model realizes the transformation of water sample filtration from traditional manual filtration to fully automated filtration. It eliminates the need for laborious manual syringe operation, greatly improving filtration efficiency and reducing the workload of operators.

[0013] 2. It avoids the introduction of human error during manual filtration, significantly improving the accuracy and reliability of filtration. At the same time, the device has a simple and clear structure, is easy to operate, and is easy to maintain and repair.

[0014] 3. The flow rate of the injection pump is fully controlled through the control panel, ensuring the orderly operation of the entire filtration process and guaranteeing its stability and reliability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] In the diagram: 1. Outer shell; 11. Partition plate; 2. Water sample storage tank; 21. Inlet pipe; 3. Sample pump; 31. Motor; 4. Filter assembly; 5. Filtrate collection tank; 51. Outlet pipe; 52. Electric valve; 6. Hose; 7. Control panel. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an automatic filtration device for water sample testing in an ion chromatograph.

[0018] like Figure 1 As shown, an automatic filtration device for water sample detection in an ion chromatograph includes a housing 1. A partition 11 inside the housing 1 divides the internal space of the housing 1 into upper and lower layers. A water sample storage tank 2, a sample injection pump 3, and a filter assembly 4 are fixedly installed in the upper layer. A filtrate collection tank 5 is fixedly installed in the lower layer. An inlet pipe 21 is provided above the water sample storage tank 2, extending to the top of the housing 1. The inlet and outlet of the sample injection pump 3 are connected to the water sample storage tank 2 and the filter assembly 4 respectively via hoses 6. The filter assembly 4 consists of a 0.45μm filter and a matching filter chamber. The 0.45μm filter is installed inside the filter chamber. A hose 6 is provided at the outlet of the filter assembly 4 to lead into the filtrate collection tank 5. An outlet pipe 51 is provided at the bottom of the filtrate collection tank 5 to connect to the outside of the housing 1.

[0019] In the embodiment, the upper opening of the liquid inlet pipe 21 is funnel-shaped, the electric valve 52 is arranged on the liquid outlet pipe 51, and the automatic exhaust valve (not shown in the figure) is arranged above the water sample storage tank 2 and the filtrate collection tank 5. The control panel 7 is arranged on the side of the shell 1, the sample inlet pump 3 is driven by the motor, the control panel 7 is electrically connected with the motor 31, the flow of the sample inlet pump 3 is controlled by controlling the rotating speed of the motor 31, and the electric valve 52 is electrically connected with the control panel 7, so that the opening and closing of the electric valve 52 is controlled by the control panel 7.

[0020] The water sample storage tank 2 is specially used for storing the water sample to be filtered, the sample inlet pump 3 is connected with the water sample storage tank 2 and is responsible for pumping the water sample into the filter assembly 4, the filtrate collection tank 5 is used for collecting the water sample after filtration, and the control panel 7 is used for controlling the rotating speed of the motor 52 to control the flow of the sample inlet pump 3, so that the whole filtration process is orderly operated.

[0021] In use, the operator firstly connects the special sampling equipment containing the water sample to be filtered to the water sample storage tank 2, starts the whole device by the control panel 7, and sets the flow of the sample inlet pump 3. The sample inlet pump 3 pumps the water sample into the filter assembly 4, the coal powder and solid particles and other impurities contained in the water sample are difficult to pass through the 0.45um filter, the water sample without impurities flows into the filtrate collection tank 5 after filtration, and the filtration is completed.

[0022] It can be understood that the utility model is described through some embodiments, and those skilled in the art know that various changes or equivalent replacements can be made to these features and embodiments without departing from the spirit and range of the utility model. In addition, under the guidance of the utility model, these features and embodiments can be modified to adapt to specific conditions and materials without departing from the spirit and range of the utility model. Therefore, the utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the range protected by the utility model.

Claims

1. An automatic filtration device for water sample detection in an ion chromatograph, characterized in that, Includes an outer shell (1), inside which a partition (11) is provided to divide the internal space of the outer shell (1) into upper and lower layers. The upper layer is fixedly installed with a water sample storage tank (2), a sample pump (3) and a filter assembly (4), and the lower layer is fixedly installed with a filtrate collection tank (5). An inlet pipe (21) is provided above the water sample storage tank (2) and extends to the top of the outer shell (1). The inlet and outlet of the sample pump (3) are connected to the water sample storage tank (2) and the filter assembly (4) respectively through a hose (6). The filter assembly (4) consists of a filter chamber and a 0.45μm filter. The outlet of the filter assembly (4) is provided with a hose (6) to introduce the filtrate collection tank (5). The bottom of the filtrate collection tank (5) is provided with an outlet pipe (51) connected to the outside of the outer shell (1).

2. The automatic filtration device for water sample detection in an ion chromatograph according to claim 1, characterized in that, The upper opening of the liquid inlet pipe (21) is funnel-shaped.

3. The automatic filtration device for water sample detection in an ion chromatograph according to claim 1, characterized in that, Includes an automatic venting valve, which is located above the water sample storage tank (2) and the filtrate collection tank (5).

4. The automatic filtration device for water sample detection in an ion chromatograph according to claim 1, characterized in that, The system includes a control panel (7), and the injection pump (3) is driven by a motor (31). The control panel (7) is electrically connected to the motor (31), and the flow rate of the injection pump (3) is controlled by controlling the speed of the motor (31).

5. The automatic filtration device for water sample detection in an ion chromatograph according to claim 4, characterized in that, The control panel (7) is located on the side of the housing (1).

6. The automatic filtration device for water sample detection in an ion chromatograph according to claim 4 or 5, characterized in that, An electric valve (52) is installed on the liquid outlet pipe (51), and the electric valve (52) is electrically connected to the control panel (7).

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