Sampling bottle suitable for sealed sampling of liquid

Abstract

The utility model belongs to the field of sampling equipment, and provides a sampling bottle suitable for liquid sealing sampling, which comprises a bottle body (1), a feeding component (2) and a discharging component (4), the bottle body (1) is connected with a material barrel to be sampled through the feeding component (2), and the discharging component (4) is used for discharging samples; wherein the bottle body (1) comprises a sample cavity (1-1), a first opening (1-2), a second opening (1-3) and a window (1-4), and the first opening (1-2) is connected with the feeding assembly (2); the feeding assembly (2) comprises quick-connection female teeth (2-3) matched with quick-connection male teeth of a material barrel to be sampled; the discharging assembly (4) comprises a discharging pipe (4-1) and a discharging valve (4-2), the discharging valve (4-2) is arranged on the discharging pipe (4-1), and the discharging assembly (4) is communicated with the bottle body (1); according to the technical scheme, the problems that when liquid sensitive materials are sampled, operation is tedious, time and labor are wasted, safety is poor, the sampling amount is uncontrollable in the sampling process, and the amount of residual materials in a pipeline is large are well solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sampling equipment field especially, be applicable to liquid sealed sampling sampling bottle. BACKGROUND

[0002] There are a large number of environmentally sensitive materials in the field of lithium batteries, liquid additives or electrolyte, etc. usually need to be sealed and stored in pressure material barrels to isolate the interference of air and moisture, but at the same time, it also makes it difficult to sample the liquid in the material barrel. The current common sampling method includes: connecting the quick connector at the top of the material barrel with the sampling pipeline, placing the other end of the sampling pipeline in the glove box, and completing the sampling operation in the glove box. This sampling method is harsh, needs to be used with a glove box, and the sampling pipeline is long, and there is more pipeline residue. For simple sampling without a glove box on site, one person usually covers the sampling bag on the quick connector at the top of the material barrel by nitrogen replacement, and the other person opens the valve of the material barrel to sample. This method needs to be operated by multiple people, which is time-consuming and laborious.

[0003] In order to improve the sampling convenience, many manufacturers are looking for new ways. For example, the closed sampling device disclosed in CN220552646U includes a bottle body, the bottle body has an upper wall part and a lower wall part, the lower wall part is provided with a first liquid phase pipe and a first gas phase pipe, the upper wall part is provided with a second liquid phase pipe and a second gas phase pipe, and the side wall part of the bottle body is communicated with a sampling assembly. The sampling process avoids the influence of air. The closed sampler disclosed in CN220625836U includes a conversion joint, a sampling pipe and a liquid discharge pipe, the sampling pipe is detachably connected between the liquid discharge pipe and the conversion joint, and after sampling is completed, the sampling pipe can be detached, and the sample will not be exposed in the environment during the whole process, which ensures the cleanliness of the sample. However, the above-mentioned schemes do not have a sampling window, and the sampling amount is uncontrollable. For the pressure material barrel, there is a certain safety risk.

[0004] Therefore, it is of great practical significance to design a sampling bottle that is easy to operate, does not expose the material, and has controllable sampling amount for sampling of sensitive pressure liquid materials. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is that the liquid sensitive material sampling in the prior art is complicated, time-consuming and laborious, has poor safety, and the sampling amount is uncontrollable during the sampling process, and there is much pipeline residue. A sampling bottle suitable for liquid sealed sampling is provided, which has the advantages of simple operation, high efficiency, good safety, adjustable sampling amount, less pipeline residue, and no material pollution during the sampling process.

[0006] To solve the above-mentioned technical problems, this application provides the following technical solution: a sampling bottle suitable for liquid sealed sampling, comprising a bottle body 1, a feeding assembly 2, and a discharging assembly 4. The bottle body 1 is connected to the material container to be sampled through the feeding assembly 2, and the sample is discharged through the discharging assembly 4. The bottle body 1 includes a sample chamber 1-1, a first opening 1-2, a second opening 1-3, and a viewing window 1-4. The first opening 1-2 is connected to the feeding assembly 2. The feeding assembly 2 includes a quick-connect female thread 2-3 that matches the quick-connect female thread of the material container to be sampled. The discharging assembly 4 includes a discharging pipe 4-1 and a discharging valve 4-2. The discharging valve 4-2 is disposed on the discharging pipe 4-1, and the discharging assembly 4 is connected to the bottle body 1.

[0007] Furthermore, the viewing window 1-4 is provided with scale lines 1-5 to observe the sample quantity inside the bottle body 1; the viewing window 1-4 is riveted or welded to the bottle body 1.

[0008] Furthermore, a pressure measuring component 3 is connected to the top of the bottle body 1. The pressure measuring component 3 includes a third short circuit 3-1, a pressure valve 3-2, and a pressure monitoring device 3-3. The pressure measuring component 3 is connected to the bottle body 1 to monitor the pressure inside the bottle body 1.

[0009] Furthermore, the feeding assembly 2 also includes a first shorting connection 2-1, a feeding valve 2-2, and a second shorting connection 2-4. The feeding valve 2-2 is located between the first shorting connection 2-1 and the second shorting connection 2-4. The feeding assembly 2 is connected to the first opening 1-2 through the first shorting connection 2-1 and to the sample container through the quick-connect female thread 2-3.

[0010] Furthermore, the first shorting 2-1, the second shorting 2-4, and the third shorting 3-1 are all external thread shortings, and the first opening 1-2 and the second opening 1-3 are internal thread openings. The connection between the first opening 1-2 and the first shorting 2-1, and between the second opening 1-3 and the third shorting 3-1, adopts a threaded connection method with matching internal and external threads.

[0011] Furthermore, the inner diameter of the first shorting circuit 2-1, the second shorting circuit 2-4, and the third shorting circuit 3-1 is selected from one of 1 / 8", 1 / 4", or 1 / 2".

[0012] Furthermore, the top of the bottle body 1 is also provided with a gas phase port, and a gas phase pipe 1-6 is connected to the gas phase port. A gas phase valve 1-7 is provided on the gas phase pipe 1-6 to realize the intake, exhaust or vacuuming of the bottle body 1.

[0013] Furthermore, the bottle body 1 adopts an integral design or a split design.

[0014] Furthermore, when the bottle body 1 adopts a split design, it is connected by threaded connection, flange connection or sanitary quick-connect.

[0015] Furthermore, the bottle body 1 is made of stainless steel or polytetrafluoroethylene.

[0016] This utility model provides a sampling bottle suitable for sealed liquid sampling. The bottle body and all components are connected by a detachable threaded connection, allowing for selection of a suitable bottle volume based on the sampling amount. Matching quick-connect fittings can also be selected based on the quick-connect type on the sample container. Sampling can be completed by a single person, making operation convenient. The bottle body is equipped with a viewing window, graduation lines, and a gas phase tube. The pressure measuring component contains a pressure monitoring device that can monitor and adjust the pressure inside the bottle to obtain the target sampling volume. The overall design of the sampling bottle is simple, avoiding the use of long sampling tubes, reducing pipeline residue, and facilitating cleaning. Therefore, the sampling bottle for sealed liquid sampling provided by this utility model has the advantages of simple design, convenient operation, good safety, fully sealed sampling, no material exposure or contamination, adjustable sampling volume, and minimal pipeline residue, achieving good technical results. Attached Figure Description

[0017] Appendix Figure 1 The overall structural diagram of the sampling bottle for sealed liquid sampling provided by this utility model.

[0018] Appendix Figure 1 In the diagram, 1 represents the bottle body, 1-1 the sample chamber, 1-2 the first opening, 1-3 the second opening, 1-4 the viewing window, 1-5 the scale line, 1-6 the gas phase tube, and 1-7 the gas phase valve; 2 represents the feeding assembly, 2-1 the first short circuit, 2-2 the feeding valve, 2-3 the quick-connect female thread, and 2-4 the second short circuit; 3 represents the pressure measuring assembly, 3-1 the third short circuit, 3-2 the pressure valve, and 3-3 the pressure monitoring device; 4 represents the discharge assembly, 4-1 the discharge pipe, and 4-2 the discharge valve. Detailed Implementation

[0019] The present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are preferred embodiments adopted only to better illustrate the present invention, but are not limited to the following embodiments. It should be noted that for those skilled in the art, all equivalent changes made in accordance with the principles and features of the present invention are within the protection scope of the present invention.

[0020] Example: A sampling bottle suitable for liquid sealing sampling includes a stainless steel bottle body 1, a feeding component 2, a pressure measuring component 3, and a discharging component 4. The bottle body 1 is connected to the material container to be sampled through the feeding component 2, the pressure inside the bottle is monitored through the pressure measuring component 3, and the sample is discharged through the discharging component 4.

[0021] The bottle body 1 includes a sample chamber 1-1, a first opening 1-2, a second opening 1-3, and a viewing window 1-4. A notch is provided at the position corresponding to the viewing window 1-4. From the inside out, a gasket, a transparent viewing window, and a stainless steel frame are sequentially provided at the notch. The stainless steel frame is secured with rivets to achieve a seal between the viewing window 1-4 and the bottle body 1. A scale line 1-5 is also provided on the viewing window 1-4 to observe the sample volume inside the bottle body 1. A gas phase port is also provided at the top of the bottle body 1, connected to a gas phase tube 1-6. A gas phase valve 1-7 is provided on the gas phase tube 1-6 to realize gas intake, gas exhaust, and vacuuming of the bottle body 1.

[0022] The feeding assembly 2 includes a first short connector 2-1, a feeding valve 2-2, a second short connector 2-4, and a quick-connect female thread 2-3. The feeding valve 2-2 is located between the first short connector 2-1 and the second short connector 2-4. The first short connector 2-1 and the second short connector 2-4 are external threaded short connectors, and the first opening 1-2 is an internal threaded opening. The first short connector 2-1 and the first opening 1-2 are connected by a threaded connection with matching internal and external threads. The quick-connect female thread 2-3 matches the quick-connect female thread on the sample container to achieve a direct connection between the sampling bottle and the material container.

[0023] The pressure measuring component 3 includes a third shorting connector 3-1, a pressure valve 3-2, and a pressure gauge 3-3. The third shorting connector 3-1 is an external threaded connector, and the second opening 1-3 is an internal threaded opening. The third shorting connector 3-1 and the second opening 1-3 are connected by a threaded connection with matching internal and external threads. The pressure valve 3-2 is located between the third shorting connector 3-1 and the pressure gauge 3-3. The discharge component 4 includes a discharge pipe 4-1 and a discharge valve 4-2. The discharge valve 4-2 is located on the discharge pipe 4-1, and the discharge component 4 is connected to the first shorting connector 2-1. The inner diameter of the first shorting connector 2-1, the second shorting connector 2-4, the third shorting connector 3-1, and the corresponding interface is 1 / 4". During the sampling process, the pressure inside the bottle 1 is regulated by opening / closing the gas phase valve 1-7 to obtain the target sample volume.

[0024] Vinyl ethylene carbonate (VEC) is typically stored in sealed stainless steel drums with a pressure of approximately 0.5 kg. The procedure for sampling VEC from these drums using a sampling bottle is as follows:

[0025] (1) Based on the target sampling amount of VEC, select a bottle body 1 with a volume of 250mL, and select matching female teeth as quick connector female teeth 2-3 according to the type of male teeth of the quick connector on the top of the VEC packaging barrel, and assemble the entire sampling bottle.

[0026] (2) Close the feed valve 2-2 and the discharge valve 4-2, open the pressure valve 3-2 and the gas phase valve 1-7, and introduce nitrogen into the bottle body 1 through the gas phase pipe 1-6 to perform pressure test and leak test. After the leak test, replace the nitrogen 3-5 times, depressurize, evacuate and then close the gas phase valve 1-7.

[0027] (3) Connect the quick-connect female thread 2-3 to the quick-connect female thread on the top of the VEC packaging barrel, open the feed valve 2-2 and the discharge valve 4-2. The material in the barrel flows through and washes the feed assembly 2 and the discharge assembly 4 under the action of pressure difference. After washing, close the discharge valve 4-2. The material enters the sample chamber 1-1, and the pressure in the bottle 1 gradually increases. Observe the sampling amount through the viewing window 1-4 and the scale line 1-5. If the pressure in the packaging barrel and the bottle 1 reaches a balance before the target sampling amount is reached, close the feed valve 2-2, open the gas phase valve 1-7 to reduce the pressure in the bottle 1, then close the gas phase valve and open the feed valve 2-2 to continue the sampling operation. After the sampling is completed, close the feed valve 2-2.

[0028] (4) Remove the sampling bottle from the packaging barrel and transfer it to the glove box protected by nitrogen. Open the discharge valve 4-2. During the sample pouring process, open / close the gas phase valve 1-7 according to the pressure gauge reading to perform depressurization or nitrogen pressurization operation, pour out the sample, and dispense and test it.

[0029] The sampling bottle provided by this utility model is suitable for sealed liquid sampling. The sampling bottle is directly connected to the material container. It has a simple design, convenient operation, good safety, adjustable sampling volume, little residual material in the pipeline, and fully sealed sampling, so that the material is not exposed and there is no pollution, thus achieving good technical results.

Claims

1. A sampling bottle suitable for sealed liquid sampling, comprising a bottle body (1), an infeed assembly (2), and a discharge assembly (4), wherein the bottle body (1) is connected to a material container to be sampled via the infeed assembly (2), and the sample is discharged via the discharge assembly (4); characterized in that, The bottle body (1) includes a sample chamber (1-1), a first opening (1-2), a second opening (1-3), and a viewing window (1-4). The first opening (1-2) is connected to the feeding assembly (2). The feeding assembly (2) includes a quick-connect female thread (2-3) that matches the quick-connect female thread of the sample container. The discharging assembly (4) includes a discharging pipe (4-1) and a discharging valve (4-2). The discharging valve (4-2) is located on the discharging pipe (4-1). The discharging assembly (4) is connected to the bottle body (1).

2. The sampling bottle for sealed liquid sampling as described in claim 1, characterized in that, The viewing window (1-4) is provided with scale lines (1-5) to observe the sample quantity in the bottle body (1); the viewing window (1-4) is riveted or welded to the bottle body (1).

3. The sampling bottle for sealed liquid sampling as described in claim 1, characterized in that, The top of the bottle body (1) is connected to a pressure measuring component (3). The pressure measuring component (3) includes a third short circuit (3-1), a pressure valve (3-2), and a pressure monitoring device (3-3). The pressure measuring component (3) is connected to the bottle body (1) to monitor the pressure inside the bottle body (1).

4. The sampling bottle for sealed liquid sampling as described in claim 3, characterized in that, The feeding assembly (2) further includes a first short circuit (2-1), a feeding valve (2-2), and a second short circuit (2-4). The feeding valve (2-2) is located between the first short circuit (2-1) and the second short circuit (2-4). The feeding assembly (2) is connected to the first opening (1-2) through the first short circuit (2-1) and to the sample container through the quick-connect female thread (2-3).

5. The sampling bottle for sealed liquid sampling as described in claim 4, characterized in that, The first short circuit (2-1), the second short circuit (2-4), and the third short circuit (3-1) are all external thread short circuits, and the first opening (1-2) and the second opening (1-3) are internal thread openings. The first opening (1-2) and the first short circuit (2-1), and the second opening (1-3) and the third short circuit (3-1) are all connected by matching internal and external threads.

6. The sampling bottle for sealed liquid sampling as described in claim 5, characterized in that, The inner diameter of the first shorting (2-1), the second shorting (2-4), and the third shorting (3-1) is selected from one of 1 / 8", 1 / 4", or 1 / 2".

7. The sampling bottle for sealed liquid sampling as described in claim 1, characterized in that, The bottle body (1) is also provided with a gas phase port, and a gas phase pipe (1-6) is connected to the gas phase port. A gas phase valve (1-7) is provided on the gas phase pipe (1-6) to realize the intake, exhaust or vacuuming of the bottle body (1).

8. The sampling bottle for sealed liquid sampling as described in claim 1, characterized in that, The bottle body (1) is designed as an integral unit or as a separate unit.

9. The sampling bottle for sealed liquid sampling as described in claim 1, characterized in that, The bottle body (1) is made of stainless steel or polytetrafluoroethylene.

Images