Liquid sampling device and analysis device

Abstract

The invention discloses a liquid sampling device and an analysis device.The liquid sampling device comprises a vacuum tube, a liquid discharging tube and a material taking tube, the vacuum tube is provided with a containing space and a first opening communicated with the containing space, and the vacuum tube has a cold insulation effect; the liquid discharge pipe is positioned in the accommodating space, is provided with a second opening and is used for placing a to-be-taken sample; the material taking pipe comprises a first end and a second end which are oppositely arranged, and the first end is used for being inserted into the liquid discharging pipe through the first opening and the second opening in sequence so as to extract a to-be-taken sample in the liquid discharging pipe; the first end of the material taking pipe is provided with a tip structure. The first end of the material taking pipe is provided with the tip structure, so that a needed sample can be conveniently taken out from the liquid discharging pipe, and the effect that the taken sample is real-time, real and accurate is achieved. In one embodiment, the sample includes cryogenic liquid xenon-krypton.

Description

Technical Field

[0001] This application relates to the field of sampling devices for chemical products, and in particular to a liquid sampling device and analysis device. Background Technology

[0002] The liquid krypton-xenon filling tube contains a liquid krypton-xenon sample. To ensure safe production, it is necessary to accurately measure the hydrocarbon content in the liquid krypton-xenon sample while ensuring that the sample taken out is in liquid form to obtain accurate measurement results. The accuracy of sampling determines the magnitude of the deviation in the analysis results.

[0003] Therefore, there is an urgent need to develop stable and reliable liquid sampling devices to improve the accuracy of hydrocarbon content sampling in order to guide safe production. Summary of the Invention

[0004] This application mainly provides a liquid sampling device and an analysis device, which can have multiple functions to meet the needs of use.

[0005] To solve the above-mentioned technical problems, the technical solution adopted in this application is as follows: a liquid sampling device is provided, which includes a vacuum tube, a drain tube, and a sampling tube. The vacuum tube is provided with a accommodating space and a first opening communicating with the accommodating space, and the vacuum tube has a cold preservation effect. The drain tube is located in the accommodating space and is provided with a second opening for placing the sample to be sampled. The sampling tube includes a first end and a second end arranged opposite to each other. The first end is used to be inserted into the drain tube in sequence through the first opening and the second opening to extract the sample to be sampled from the drain tube. The first end of the sampling tube has a pointed structure.

[0006] The tip angle of the tip structure is in the range of 40°-50°.

[0007] The distance between the tip structure and the bottom of the drain pipe is 5mm-6mm.

[0008] The drain pipe has a circular cross-section, and the distance between the first opening of the vacuum tube and the center of the drain pipe is not less than 200 mm.

[0009] The roundness of the tip structure is no greater than 10 μm.

[0010] The diameter of the material receiving tube ranges from 8 to 12 mm.

[0011] The liquid sampling device further includes a tube platform, which is disposed in the accommodating space and located outside the drain pipe. The first end of the sampling tube passes through the tube platform and is inserted into the drain pipe. Both the sampling tube and the drain pipe are fixedly connected to the tube platform. The drain pipe is a circular tube, and the second opening of the drain pipe is an elliptical opening. The vacuum tube includes a circular portion and a tubular portion that are connected and communicate with each other. The end of the tubular portion that is not connected to the circular portion is provided with the first opening. Both the drain pipe and the tube platform are disposed in the circular portion.

[0012] Wherein, the pipe platform and the drain pipe are fixedly connected by a fillet weld process; and / or; the pipe platform and the material receiving pipe are fixedly connected by a fillet weld process.

[0013] To solve the above-mentioned technical problems, another technical solution adopted in this application is: to provide an analytical device, which includes the liquid sampling device, extension tube and analytical evaporator described in the above embodiments, wherein the extension tube is connected to the sampling tube; the analytical evaporator is connected to the extension tube and is used to analyze the sample taken from the sampling tube.

[0014] The extension tube is equipped with a switching valve, which is used to control the extension tube to be open or closed.

[0015] The beneficial effects of this application are: the first end of the sampling tube has a pointed structure, which facilitates the removal of the required sample from the drain tube, achieving real-time, accurate, and reliable sample collection. In one embodiment, the sample includes cryogenic liquid krypton-xenon. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of one embodiment of the liquid sampling device in this application;

[0018] Figure 2 for Figure 1 A top view of one embodiment of the liquid sampling device;

[0019] Figure 3 for Figure 1 An enlarged structural schematic diagram of one embodiment of region A in the middle;

[0020] Figure 4This is a schematic diagram of one embodiment of the analysis device in this application.

[0021] Explanation of reference numerals in the attached drawings: 1 Liquid sampling device; 10 Vacuum tube; 11 Containing space; 12 First opening; 13 Circular part; 14 Tubular part; 20 Drain pipe; 21 Second opening; 30 Feeding pipe; 31 First end; 32 Second end; 40 Tube platform; 100 Analytical device; 2 Extension tube; 3 Analytical evaporator; 4 Switch valve; θ Tip angle; D1 First distance; D2 Second distance. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0024] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] Based on the principle of hydrocarbon presence in liquid krypton-xenon, the separation processes of krypton, xenon, and hydrocarbons in the air separation tower are not completely independent but rather mutually influential. Accurate analysis of the hydrocarbon content in liquid krypton-xenon is necessary to guide safe production operations; therefore, sampling accuracy is crucial. To this end, based on the process medium and the state of the analytical items, and combined with practical application experience, multiple analyses and statistical results of the sampling tube insertion depth and diameter were conducted to design the liquid sampling device 1 and analytical device 100 described in this application. The liquid sampling device 1 maximizes the guarantee of sampling in a pure liquid phase, ensuring the authenticity of the sample and the accuracy of the measurement results.

[0028] Please see Figure 1 This application provides a liquid sampling device 1, which includes a vacuum tube 10, a drain tube 20, and a sampling tube 30. The vacuum tube 10 is provided with a accommodating space 11 and a first opening 12 communicating with the accommodating space 11. The vacuum tube 10 has a cold preservation effect. The drain tube 20 is located in the accommodating space 11 and is provided with a second opening 21 for placing the sample to be sampled. The sampling tube 30 includes a first end 31 and a second end 32 arranged opposite to each other. The first end 31 is used to be inserted into the drain tube 20 in sequence through the first opening 12 and the second opening 21 to extract the sample to be sampled from the drain tube 20. The first end 31 of the sampling tube 30 has a pointed structure.

[0029] Specifically, this application uses a vacuum tube 10 as insulation, with a drain pipe 20 located within it, ensuring the vacuum tube 10 maintains the stability of the sample within the drain pipe 20. Simultaneously, a sampling pipe 30 is also located within the vacuum tube 10, allowing the sample retrieved through the sampling pipe 30 to remain in a cryogenic liquid state. This avoids the problem of traditional sampling environments having both gas and liquid phases, where the hydrocarbons to be analyzed need to remain in the liquid phase, and the conversion of hydrocarbons to the gaseous phase leads to low sampling accuracy and significant errors in subsequent analysis results. Furthermore, the design of the second opening 21 of the drain pipe 20 allows the sampling pipe 30 to retrieve the sample to be taken from within the drain pipe 20. The sampling pipe 30 also has a pointed structure on the side near the drain pipe 20. This pointed structure, compared to the flat opening design in the prior art, facilitates the retrieval of an accurate number of samples from the drain pipe 20, achieving real-time and accurate sample retrieval. In one embodiment, the sample includes cryogenic liquid krypton-xenon.

[0030] Please continue reading. Figure 1 The tip angle θ of the tip structure ranges from 40° to 50°. In one embodiment, the tip angle θ can be 40°, 41°, 42°, 43°, 44°, 45°, 46°, 47°, 48°, 49°, or 50°. This angle design facilitates the removal of the required number of samples from the sampling tube 30, improving sampling accuracy.

[0031] Please continue reading. Figure 1 The first distance D1 between the tip structure and the bottom of the drain pipe 20 is 5mm-6mm. Specifically, the first distance D1 can be 5mm, 5.1mm, 5.2mm, 5.3mm, 5.4mm, 5.5mm, 5.6mm, 5.7mm, 5.8mm, 5.9mm, or 6mm. At this time, the sampling point is set at the lowest point of the system (where hydrocarbons are most readily available), and a vacuum tube 10 is used for insulation to ensure the liquid phase state, guarantee reliable and accurate sampling, and accurately measure the actual hydrocarbon content to guide safe production operations.

[0032] Please continue reading. Figure 1 The drain pipe 20 has a circular cross-section, and the second distance D2 between the first opening 12 of the vacuum tube 10 and the center of the drain pipe 20 is not less than 200 mm. Specifically, the second distance D2 can be 200 mm, 210 mm, 220 mm, 230 mm, 240 mm, 250 mm, 260 mm, 270 mm, 280 mm, 290 mm, or 300 mm. By limiting the second distance D2, the heat insulation effect of the vacuum tube 10 can be guaranteed, so that the sample to be taken into the sampling tube 30 can remain in a liquid phase state.

[0033] In one embodiment, the roundness of the tip structure is no greater than 10 μm. Specifically, the roundness of the tip structure can be 1 μm, 2 μm, 3 μm, 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, or 10 μm. The smaller the roundness of the tip structure, the smoother the edge of the tip structure, which can prevent hydrocarbons from accumulating at the edge, improve production safety, and prevent explosions.

[0034] In one embodiment, the diameter of the sampling tube 30 is in the range of 8-12 mm. Specifically, the diameter of the sampling tube 30 can be 8 mm, 9 mm, 10 mm, 11 mm, or 12 mm. This avoids the problem of inaccurate sampling volume caused by an unsuitable sampling tube 30, and improves sampling accuracy.

[0035] Please continue reading. Figure 1 and Figure 2 The liquid sampling device 1 also includes a tube platform 40, which is disposed in the accommodating space 11 and located outside the drain pipe 20. The first end 31 of the sampling tube 30 passes through the tube platform 40 and is inserted into the drain pipe 20. The sampling tube 30 and the drain pipe 20 are both fixedly connected to the tube platform 40. The drain pipe 20 is a circular tube, and the second opening 21 of the drain pipe 20 is an elliptical opening. The vacuum tube 10 includes a circular portion 13 and a tubular portion 14 that are connected and communicate with each other. The end of the tubular portion 14 that is not connected to the circular portion 13 is provided with a first opening 12. The drain pipe 20 and the tube platform 40 are both disposed in the circular portion 13.

[0036] Specifically, the tube platform 40 is fitted onto the second opening 21 of the drain pipe 20, and the first end 31 of the sampling tube 30 passes through the tube platform 40 into the drain pipe 20 to retrieve the sample. Simultaneously, the relative positions of the sampling tube 30, the drain pipe 20, and the tube platform 40 are fixed to ensure the stability of the sampling process. Since the drain pipe 20 is a circular tube, its second opening 21 is elliptical to avoid a dead zone between the tube platform 40 and the second opening 21 of the drain pipe 20, which could cause processing difficulties and abnormalities during sampling. The vacuum tube 10 includes a circular portion 13 and a tubular portion 14 that are interconnected and communicate with each other. The circular portion 13 is fitted around the drain pipe 20, and the tubular portion 14 is fitted around the sampling tube 30. The end of the tubular portion 14 away from the circular portion 13 has a first opening 12 to facilitate the passage of the sampling tube 30. The drain pipe 20 and the tube platform 40 are both located in the circular part 13 to ensure the protection of the sample to be taken in the drain pipe 20.

[0037] Please see Figure 3 The tube platform 40 and the drain pipe 20 are fixedly connected by a fillet weld. This ensures a seamless connection between the drain pipe 20 and the tube platform 40, guaranteeing good sealing and preventing sample spillage or hydrocarbon sample accumulation in the contact area, which could lead to explosions or other hazards.

[0038] In one embodiment, the tube platform 40 and the sampling tube 30 are fixedly connected by a fillet weld. This ensures a seamless connection between the sampling tube 30 and the tube platform 40, guaranteeing good sealing and preventing sample spillage or hydrocarbon sample accumulation in the contact area between the tube platform 40 and the sampling tube 30, which could lead to explosions or other hazards.

[0039] Please see Figure 4 This application also provides an analytical apparatus 100, which includes the liquid sampling device 1, extension tube 2, and analytical evaporator 3 as described in the above embodiments. The extension tube 2 is connected to the sampling tube 30; the analytical evaporator 3 is connected to the extension tube 2 and is used to analyze the sample taken from the sampling tube 30. Specifically, the sampling tube 30, extension tube 2, and analytical evaporator 3 are connected in sequence to facilitate the sample in the sampling tube 30 entering the analytical evaporator 3 for effective analysis of hydrocarbon content. In one embodiment, an extension vacuum tube 10 is also fitted around the extension tube 2 to provide thermal insulation protection for the sample in the extension tube 2, ensuring the sample remains in a liquid phase and guaranteeing the accuracy of the analytical results.

[0040] Please continue reading. Figure 4 An on / off valve 4 is installed on the extension tube 2, which is used to control the extension tube 2 to be open or closed. Specifically, the on / off valve 4 facilitates the control of the analysis device 100. When not in operation, simply select the "off" mode in the on / off valve 4 to stop its operation. When the on / off valve 4 is switched to the "on" mode, the analysis operation can begin.

[0041] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A liquid sampling device, characterized by, include: A vacuum tube has a receiving space and a first opening communicating with the receiving space, and the vacuum tube has a cold preservation effect; A drain pipe, located in the accommodating space and having a second opening, is used to place the sample to be taken. The sampling tube includes a first end and a second end disposed opposite to each other. The first end is used to be inserted into the drain tube in sequence through the first opening and the second opening to extract the sample to be taken from the drain tube. The first end of the material receiving tube has a pointed structure.

2. The liquid sampling device according to claim 1, characterized in that, The tip angle of the tip structure ranges from 40° to 50°.

3. The liquid sampling device according to claim 1, characterized in that, The distance between the tip structure and the bottom of the drain pipe is 5mm-6mm.

4. The liquid sampling device according to claim 1, characterized in that, The drain pipe has a circular cross-section, and the distance between the first opening of the vacuum tube and the center of the drain pipe is not less than 200 mm.

5. The liquid sampling device according to claim 1, characterized in that, The roundness of the tip structure is no greater than 10 μm.

6. The liquid sampling device according to claim 1, characterized in that, The diameter of the feed tube ranges from 8 to 12 mm.

7. The liquid sampling device according to claim 1, characterized in that, Also includes: A tube platform is provided in the accommodating space and located outside the drain pipe. The first end of the material taking pipe passes through the tube platform and is inserted into the drain pipe. Both the material taking pipe and the drain pipe are fixedly connected to the tube platform. The drain pipe is a circular pipe, the second opening of the drain pipe is an elliptical opening, and the vacuum tube includes a circular portion and a tubular portion that are connected and communicate with each other. The tubular portion is provided with the first opening at one end that is not connected to the circular portion. The drain pipe and the tube platform are both disposed in the circular portion.

8. The liquid sampling device according to claim 7, characterized in that, The pipe platform and the drain pipe are fixedly connected by a fillet weld process. Or; the tube platform and the material receiving tube are fixedly connected by a fillet weld process.

9. An analytical apparatus, characterized in that, include: The liquid sampling device as described in any one of claims 1 to 8; An extension tube is connected to the material intake tube; An analytical evaporator, connected to the extension tube, is used to analyze the sample taken from the sampling tube.

10. The analytical apparatus according to claim 9, characterized in that, The extension tube is equipped with a switching valve, which is used to control the extension tube to be open or closed.

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