Liquid sampling device with quantitative material taking function

Abstract

The utility model relates to a liquid sampling device with a quantitative material taking function, which comprises a liquid sampler, the liquid sampler comprises a hollow sampling tube, a plunger is mounted in the sampling tube through a sealing component in a matched manner, and the plunger is connected with a discharge end of an air cylinder; a sampling opening is formed in the side wall surface of the sampling tube and is connected with a feeding opening of the sampling bottle; at the beginning, the air cylinder extends out, so that the top end face of the plunger is flush with the top end face of the sampling pipe; during sampling, the air cylinder retracts and drives the plunger to do descending linear motion in the vertical direction, so that the top end face of the plunger is flush with the sampling opening, a sampling space with the fixed volume is formed in the sampling pipe, sample liquid in the sampling space flows into the sampling bottle through the sampling opening, and liquid taking is completed. By arranging the sampling bottle and the liquid sampler, automatic quantitative sampling can be carried out, the sampling efficiency is high, and the sampling accuracy and consistency can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of sampler technology, and in particular to a liquid sampling device with quantitative sampling function. Background Technology

[0002] In the field of chemical engineering, it is often necessary to use samplers to take samples of liquids for material analysis, thereby facilitating quality and capacity control.

[0003] In the existing technology, the lithium battery industry mainly relies on manual operation for sampling high-viscosity slurries. This method is not only inefficient, but also makes it difficult to guarantee the accuracy and consistency of sampling. At the same time, manual sampling inevitably leads to the sample liquid coming into contact with air, which is difficult to meet the sampling requirements in complex chemical environments. Utility Model Content

[0004] Therefore, it is necessary to provide a liquid sampling device with quantitative sampling function to address the problems of low efficiency, difficulty in ensuring the accuracy and consistency of sampling, and difficulty in meeting the sampling needs in complex chemical environments that exist in manual sampling.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A liquid sampling device with quantitative sampling function includes a liquid sampler, the liquid sampler including a hollow sampling tube, and a plunger installed inside the sampling tube through a sealing component, the plunger being connected to the discharge end of a cylinder.

[0007] A sampling port is provided on the side wall of the sampling tube, and the sampling port is connected to the inlet of the sampling bottle;

[0008] Initially, the cylinder extends, making the top end face of the plunger flush with the top end face of the sampling tube. During sampling, the cylinder retracts, causing the plunger to move vertically downwards in a straight line, making the top end face of the plunger flush with the sampling port. This forms a sampling space with a fixed volume inside the sampling tube. The sample liquid inside the sampling space flows into the sampling bottle through the sampling port, thus completing the liquid sampling.

[0009] As a further improvement to the above technical solution:

[0010] The sealing assembly includes several O-rings spaced apart along the axial direction of the plunger.

[0011] The liquid sampler is fitted and installed at the bottom of the container.

[0012] A connecting flange is fitted on the outer wall of the top of the sampling tube, and the liquid sampler is sealed to the container through the connecting flange.

[0013] The sampling bottle includes a bottle body and a bottle cap, and the bottle cap and bottle body are connected by threads.

[0014] The top end face of the bottle cap has an air inlet and a feed inlet respectively.

[0015] A pagoda connector is welded to the feed inlet of the bottle cap.

[0016] The pagoda connector is connected to the sampling port via a silicone tube.

[0017] A discharge connector is installed at the sampling port.

[0018] The discharge joint is a dry joint.

[0019] The beneficial effects of this utility model are as follows:

[0020] This utility model has a compact and reasonable structure and is easy to operate. By setting up a sampling bottle and a liquid sampler, it can perform automatic quantitative sampling with high sampling efficiency and can ensure the accuracy and consistency of sampling. It is more suitable for sampling in the chemical and lithium battery industries. At the same time, this utility model is simple to process, the parts are easy to replace, and the processing and manufacturing costs are low.

[0021] This utility model also has the following advantages:

[0022] (1) By setting up a cylinder, the sampling amount and sampling frequency can be quickly adjusted according to actual usage needs. The operation principle is simple and easy to control.

[0023] (2) By setting an O-ring, the plunger can slide stably along the sampling tube while effectively ensuring the sealing performance between the plunger and the sampling tube, thereby preventing leakage of materials inside the container.

[0024] (3) By setting an air vent, the inside of the sampling bottle can be evacuated or the vacuum can be broken, so as to ensure that the vacuum degree inside the sampling bottle is slightly lower than that inside the container, thus ensuring that the sample liquid can flow smoothly into the bottle. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the sampling bottle in this utility model.

[0027] Figure 3 This is a schematic diagram of the liquid sampler in this utility model.

[0028] Figure 4 This is a schematic diagram of the liquid sampler in its initial state according to this utility model.

[0029] Figure 5This is a schematic diagram of the liquid sampler in the sampling state in this utility model.

[0030] The components are: 1. Container; 2. Sampling bottle; 3. Liquid sampler; 4. Silicone tubing; 5. Bottle body; 6. Bottle cap; 601. Air inlet; 602. Pagoda connector; 7. Cylinder; 8. Sampling tube; 801. Sampling space; 9. Plunger; 10. O-ring seal; 11. Sampling port; 12. Discharge connector; 13. Connecting flange. Detailed Implementation

[0031] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0032] The structure and function of this utility model are as follows:

[0033] like Figures 1-5 As shown, a liquid sampling device with quantitative sampling function includes a liquid sampler 3, which includes a hollow sampling tube 8. A plunger 9 is installed inside the sampling tube 8 through a sealing assembly. The plunger 9 is connected to the discharge end of a cylinder 7. A sampling port 11 is opened on the side wall of the sampling tube 8 and is connected to the inlet of a sampling bottle 2. Initially, the cylinder 7 extends, so that the top end face of the plunger 9 is flush with the top end face of the sampling tube 8. During sampling, the cylinder 7 retracts, driving the plunger 9 to move vertically downward in a straight line, so that the top end face of the plunger 9 is flush with the sampling port 11, thereby forming a sampling space 801 with a fixed volume inside the sampling tube 8. The sample liquid inside the sampling space 801 flows into the sampling bottle 2 through the sampling port 11, thereby completing the liquid sampling. The movement of the piston 9 is controlled by controlling the movement of the cylinder 7. The operating principle is simple and easy to control. It can form a sampling space 801 with a fixed volume, thereby realizing automatic quantitative sampling, effectively improving sampling efficiency, and ensuring the accuracy and consistency of sampling. At the same time, the processing of this utility model is simple, the parts are easy to replace, and the processing and manufacturing costs are low.

[0034] The sealing assembly includes several O-rings 10 spaced apart along the axial direction of the plunger 9. By providing O-rings 10 between the outer wall of the plunger 9 and the inner wall of the sampling tube 8, the plunger 9 can slide stably along the sampling tube 8, while ensuring the sealing performance between the plunger 9 and the sampling tube 8, thereby preventing leakage of materials inside the container 1.

[0035] The liquid sampler 3 is fitted and installed at the bottom of the container 1; a connecting flange 13 is fitted and installed on the outer wall of the top of the sampling tube 8, and the liquid sampler 3 is sealed to the container 1 through the connecting flange 13. The inner ring of the connecting flange 13 is provided with a tapered thread, which is fixed to the outer wall of the sampling tube 8 through the tapered thread. The connecting flange 13 is welded to the bottom of the container 1, thereby achieving a sealed connection between the sampling tube 8 and the container 1.

[0036] The sampling bottle 2 includes a bottle body 5 and a bottle cap 6. The bottle cap 6 is connected to the bottle body 5 by a threaded connection, which can ensure the sealing performance of the internal space of the sampling bottle 2.

[0037] The top end face of the bottle cap 6 has an air inlet 601 and a feed inlet. The air inlet 601 is used to evacuate or break the vacuum inside the sampling bottle 2, so as to ensure that the vacuum degree inside the sampling bottle 2 is slightly lower than that inside the container 1, thereby ensuring that the sample liquid can flow smoothly into the bottle body 5.

[0038] A dry separation connector is installed at the air port 601. When the dry separation connector is closed, the air port 601 is sealed, thereby sealing the internal space of the sampling bottle 2.

[0039] A pagoda connector 602 is welded to the inlet of the bottle cap 6, and the pagoda connector 602 is connected to the sampling port 11 through the silicone tube 4. By setting the pagoda connector 602, the sealing performance after connecting the silicone tube 4 can be guaranteed.

[0040] In this invention, the bottle body 5 is made of polytetrafluoroethylene and the bottle cap 6 is made of stainless steel, both of which have good corrosion resistance and durability, making them more suitable for sampling in the chemical and lithium battery industries.

[0041] A discharge connector 12 is installed at the sampling port 11. The discharge connector 12 is a dry connector, which can effectively reduce material residue. At the same time, its sealing performance is good and can isolate external air pollution.

[0042] The working process of this utility model is as follows:

[0043] like Figure 4 As shown, in the initial state, the cylinder 7 is fully extended, so that the top end face of the plunger 9 is flush with the top end face of the sampling tube 8, thus preventing the material inside the container 1 from depositing inside the sampling tube 8.

[0044] like Figure 5 As shown, when the liquid sampler 3 receives a sampling instruction (i.e., in the sampling state), the cylinder 7 retracts, driving the plunger 9 to move downward in a vertical direction, so that the top end face of the plunger 9 is flush with the sampling port 11. The retraction stroke of the cylinder 7 is fixed, thus forming a sampling space 801 with a fixed volume inside the sampling tube 8. At the same time, the material inside the container 1 flows into the sampling space 801, and then flows into the sampling bottle 2 through the sampling port 11, the silicone tube 4, and the pagoda connector 602 in sequence, thereby completing the liquid sampling.

[0045] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A liquid sampling device with quantitative sampling function, characterized in that: Includes a liquid sampler (3), which includes a hollow sampling tube (8), and a plunger (9) is installed inside the sampling tube (8) through a sealing assembly. The plunger (9) is connected to the discharge end of the cylinder (7). The sampling tube (8) has a sampling port (11) on its side wall, and the sampling port (11) is connected to the inlet of the sampling bottle (2). Initially, the cylinder (7) extends, making the top end face of the plunger (9) flush with the top end face of the sampling tube (8); during sampling, the cylinder (7) retracts, driving the plunger (9) to make a downward linear motion in the vertical direction, making the top end face of the plunger (9) flush with the sampling port (11), thereby forming a sampling space (801) with a fixed volume inside the sampling tube (8), and the sample liquid inside the sampling space (801) flows into the sampling bottle (2) through the sampling port (11), thereby completing the liquid sampling.

2. The liquid sampling device with quantitative sampling function as described in claim 1, characterized in that: The sealing assembly includes several O-rings (10) spaced apart along the axial direction of the plunger (9).

3. A liquid sampling device with quantitative sampling function as described in claim 1, characterized in that: The liquid sampler (3) is fitted and installed at the bottom of the container (1).

4. A liquid sampling device with quantitative sampling function as described in claim 3, characterized in that: A connecting flange (13) is fitted on the outer wall of the top of the sampling tube (8), and the liquid sampler (3) is sealed to the container (1) through the connecting flange (13).

5. A liquid sampling device with quantitative sampling function as described in claim 1, characterized in that: The sampling bottle (2) includes a bottle body (5) and a bottle cap (6), and the bottle cap (6) and the bottle body (5) are connected by threads.

6. A liquid sampling device with quantitative sampling function as described in claim 5, characterized in that: The top end face of the bottle cap (6) is provided with an air inlet (601) and a feed inlet.

7. A liquid sampling device with quantitative sampling function as described in claim 6, characterized in that: The bottle cap (6) has a pagoda connector (602) welded to the feed inlet.

8. A liquid sampling device with quantitative sampling function as described in claim 7, characterized in that: The pagoda connector (602) is connected to the sampling port (11) via a silicone tube (4).

9. A liquid sampling device with quantitative sampling function as described in claim 1, characterized in that: A discharge connector (12) is installed at the sampling port (11).

10. A liquid sampling device with quantitative sampling function as described in claim 9, characterized in that: The discharge connector (12) is a dry connector.

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