A cutting-free solid adsorbent collection tube

Abstract

The utility model relates to environmental detection equipment technical field discloses a kind of cutting-free solid adsorbent collection tubes, including collection main body, collection main body includes glass shell, front end glass seal and rear end glass seal respectively connected in both ends of glass shell;It further includes front end glass cotton, front end solid adsorbent, middle section glass cotton, rear end solid adsorbent, rear end glass cotton filled in glass shell sequentially;And first break mark, second break mark, third break mark, fourth break mark.The utility model is equipped with first break mark, second break mark, third break mark, fourth break mark in advance on glass shell, before sampling, along third break mark, fourth break mark is broken and sampled;After sample collection is completed, when it is transported back to laboratory, operating personnel can directly along first break mark, second break mark is broken, and operating personnel directly pour out fixed adsorbent to detect, convenient and safe.

Description

Technical Field

[0001] This utility model relates to the field of environmental monitoring equipment technology, specifically to a cut-free solid adsorbent collection tube. Background Technology

[0002] In fields such as environmental monitoring and occupational health, accurately collecting and detecting toxic and harmful substances in the air (such as organic vapors, aerosols, and certain inorganic gases) is a crucial prerequisite for risk assessment and pollution control. Solid adsorbent collection tubes are a core component of widely used passive and active air sampling devices. They typically consist of a glass tube, with sections filled with one or more solid adsorbents (such as activated carbon or silica gel), and fixed at both ends with materials.

[0003] The existing collection tubes require operators to use specialized tools such as medical abrasive wheels and scribers to make circumferential cuts at both ends of the glass tube after collection, creating stress cracks. Then, by hand or with the aid of tools, external force is applied to break the tube and remove the internal solid adsorbent for subsequent testing and analysis. This method has significant drawbacks: first, the cutting operation requires specialized tools; second, the cutting process poses safety hazards, as glass fragments may injure operators; and third, the cutting process may lead to sample contamination or loss, affecting the accuracy of the test results.

[0004] To address the aforementioned issues, we developed a non-cutting solid adsorbent collection tube, which improves operational safety and detection efficiency. Utility Model Content

[0005] The technical problem solved by this invention is to provide a simplified sample processing procedure that is fast and safe, and does not require cutting to collect solid adsorbents.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a non-cutting solid adsorbent collection tube, including a collection body, the collection body including a glass shell, a front glass seal and a rear glass seal respectively connected to both ends of the glass shell; it also includes front glass wool, front solid adsorbent, middle glass wool, rear solid adsorbent and rear glass wool sequentially filled in the glass shell; and a first non-cutting fracture mark and a second fracture mark set on the glass shell, a third fracture mark set on the front glass seal and a fourth fracture mark set on the rear glass seal.

[0007] Furthermore, it also includes rubber caps used in conjunction with the front and rear glass seals.

[0008] Furthermore, the first breakage mark is located at one-third of the distance from the front-end glass wool to the front-end solid absorbent.

[0009] Furthermore, the second break is located at one-third of the distance from the rear end of the glass wool to the rear end of the solid absorbent.

[0010] Furthermore, the first, second, third, and fourth break marks are all dents.

[0011] Furthermore, the cross-section of the indentation is U-shaped or V-shaped.

[0012] Furthermore, the front-end solid adsorbent and the back-end solid adsorbent are silica gel or activated carbon.

[0013] Furthermore, the glass shell, the front glass seal, and the rear glass seal are an integral structure.

[0014] The beneficial effects of this invention are as follows: By pre-setting a first, second, third, and fourth breakage line on the collection body, before sample collection, the sampling personnel can directly break the sample along the third and fourth breakage lines using a rubber cap to form an air inlet and outlet for sampling. After sample collection, upon returning to the laboratory, the operator can directly break the sample along the first and second breakage lines, ensuring that both the front and rear fixed adsorbents are completely preserved within the glass shell. The operator can then directly pour out the fixed adsorbent for testing, which is convenient and safe. Attached Figure Description

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

[0016] The markings in the diagram are as follows: 11. Glass shell; 121. Front-end glass wool; 122. Middle-end glass wool; 123. Rear-end glass wool; 131. Front-end solid adsorbent; 132. Rear-end solid adsorbent; 141. First fracture mark; 142. Second fracture mark; 143. Third fracture mark; 144. Fourth fracture mark; 15. Rubber cap. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1The illustrated solid adsorbent collection tube without cutting includes a collection body, which includes a glass shell 11 and front and rear glass seals connected to both ends of the glass shell 11. The glass shell 11 is a straight tube with an inner diameter preferably of 3mm-9mm and a wall thickness of 0.5mm-1mm to ensure the strength and thermal stability of the collection tube. To ensure strength, the glass shell 11, the front glass seal, and the rear glass seal adopt an integrated structure. It also includes, sequentially filled within the glass shell 11, a front-end glass wool 121, a front-end solid adsorbent 131, a middle-section glass wool 122, a rear-end solid adsorbent 132, and a rear-end glass wool 123. The front-end glass wool 121 filters particulate matter and limits the front-end solid adsorbent 131. The front-end solid adsorbent 131 adsorbs the target compound. The middle-section glass wool 122 isolates the front-end solid adsorbent 131 and the rear-end solid adsorbent 132 to prevent cross-contamination. The rear-end glass wool 123 serves as a backup adsorption section to verify whether the front-end solid adsorbent 131 has permeated. The rear-end glass wool 123 limits the rear-end solid adsorbent 132. The width ratio of the middle-section glass wool 122 to the width of the front-end solid adsorbent 131 is 1:6. This collection tube also includes a third break mark 143 on the front glass seal and a fourth break mark 144 on the rear glass seal. Before sampling, the tube is broken along the third break mark 143 and the fourth break mark 144 to form an air inlet and an air outlet, facilitating sampling. Simultaneously, before sampling, it ensures that the front solid adsorbent 131 and the rear solid adsorbent 132 inside the collection tube will not be contaminated, guaranteeing the accuracy of the final test results. This collection tube also includes a first break mark 141 and a second break mark 142 on the glass shell 11 that do not require cutting. The first break mark 141, the second break mark 142, the third break mark 143, and the fourth break mark 144 are indentations with a V-shaped or U-shaped cross-section and a depth of 1 / 3 to 1 / 2 of the wall thickness of the glass shell 11, ensuring a clean, debris-free break during fracture. Pre-made creases on the collection tube allow operators to easily break it to extract the solid adsorbent for testing, eliminating the need for manual cutting of creases and subsequent breaking. This also effectively avoids inconsistent cutting positions that could cause sample spillage.

[0019] Based on the above, such as Figure 1As shown, it also includes rubber caps 15 used in conjunction with the front and rear glass seals. Before sampling, the rubber caps 15 are placed over the front and rear glass seals respectively to prevent contamination. When preparing for sampling, the sampling personnel break the front and rear glass seals along the third break line 143 and the fourth break line 144 to collect the sample, allowing the gas to pass sequentially through the front glass wool 121, the front solid adsorbent 131, the middle glass wool 122, the rear solid adsorbent 132, and the rear glass wool 123, ensuring that the target compound is captured by the front solid adsorbent 131. After sampling, the rubber caps 15 are replaced, and the sample is transported back to the laboratory; the rubber caps 15 prevent leakage or contamination of the sample during transportation and storage.

[0020] Based on the above, the first break 141 is located at one-third of the distance from the front solid adsorbent 131 to the front glass wool 121. The second break 142 is located at one-third of the distance from the rear solid adsorbent 132 to the rear glass wool 123. The advantage of this design is that after the sampling tube is transported back to the laboratory, the operator can break it along the first break 141 and the second break 142 to bring out the corresponding front glass wool 121 or rear glass wool 123, while ensuring that the front solid adsorbent 131 or rear solid adsorbent 132 remains intact inside the glass shell 11, preventing it from scattering.

[0021] In this embodiment, silica gel or activated carbon are used as the front-end solid adsorbent 131 and the rear-end solid adsorbent 132.

[0022] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cut-free solid adsorbent collection tube, characterized in that: The device includes a collection body, which comprises a glass shell, a front glass seal and a rear glass seal respectively connected to both ends of the glass shell; it also includes front glass wool, front solid adsorbent, middle glass wool, rear solid adsorbent and rear glass wool sequentially filled in the glass shell; and a first break mark and a second break mark set on the glass shell without cutting, a third break mark set on the front glass seal and a fourth break mark set on the rear glass seal.

2. The non-cutting solid adsorbent collection tube as described in claim 1, characterized in that: It also includes rubber caps used in conjunction with the front and rear glass seals.

3. The non-cutting solid adsorbent collection tube as described in claim 1, characterized in that: The first break is located at one-third of the distance from the front solid absorbent to the front glass wool.

4. The non-cutting solid adsorbent collection tube as described in claim 3, characterized in that: The second break is located at one-third of the distance from the rear end of the glass wool to the rear end of the solid absorbent.

5. The non-cutting solid adsorbent collection tube as described in claim 4, characterized in that: The first, second, third, and fourth break marks are all dents.

6. The non-cutting solid adsorbent collection tube as described in claim 5, characterized in that: The cross-section of the indentation is U-shaped or V-shaped.

7. The non-cutting solid adsorbent collection tube as described in claim 4, characterized in that: The front-end solid adsorbent and the back-end solid adsorbent are silica gel or activated carbon.

8. The non-cutting solid adsorbent collection tube as described in claim 1, characterized in that: The glass shell, front glass seal, and rear glass seal are an integrated structure.

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