A sulfur-containing waste gas sampling device

Abstract

This utility model relates to the technical field of waste gas sampling devices, specifically, to a sulfur-containing waste gas sampling device. It includes a suction and storage cylinder for suction sampling operations. A threaded tube is fixedly installed at the inlet end of the suction and storage cylinder. A first external connecting pipe is detachably installed at the end of the threaded tube. A second external connecting pipe is detachably installed at the end of the first external connecting pipe. A gooseneck tube is detachably installed at the end of the second external connecting pipe. The suction and storage cylinder includes a cylinder body. The threaded tube is fixedly installed on the cylinder body. A connecting rod is slidably connected inside the cylinder body. A piston located inside the cylinder body and slidably connected to the cylinder body is fixedly installed at the bottom end of the connecting rod. This utility model facilitates sampling operations and improves the convenience and mobility of sampling work.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas sampling devices, and more specifically, to a sulfur-containing waste gas sampling device. Background Technology

[0002] Industrial production processes, such as petrochemicals, metallurgy, and thermal power generation, generate large amounts of sulfur-containing waste gas. This gas not only severely pollutes the atmosphere, causing acid rain, smog, and other environmental problems, but also poses a significant threat to human health, potentially leading to respiratory and cardiovascular diseases. Therefore, accurate monitoring and analysis of sulfur-containing waste gas is crucial for effectively controlling emissions and protecting the environment and human health. Sampling of sulfur-containing waste gas, as the primary step in monitoring and analysis, directly impacts the accuracy and reliability of subsequent detection results.

[0003] Utility model patent CN218725795U discloses a sulfur-containing waste gas sampling device, including a shell, a gas storage tank, and a gas collecting pipe. The shell has an internal cavity through which a fan is installed. A drive motor coaxially connected to the fan is located on the lower end face of the shell. A main gas collecting pipe extends from the front end of the shell. A self-locking bolt is provided at the end of the main gas collecting pipe, and a secondary gas collecting pipe is embedded in the port of the main gas collecting pipe through the self-locking bolt. An installation pipe extending through the interior of the shell extends from the rear end face of the shell. The gas storage tank is threadedly connected to the installation pipe. The gas storage tank also includes an inlet core and a bottle body arranged sequentially from the inside out. The inlet core includes a threaded pipe, a funnel, a baffle, and a filter screen connected sequentially from top to bottom. The device is easy to use, the gas storage tank is simple to install, and the length of the gas collecting pipe is adjustable, facilitating long-distance sampling by personnel and avoiding close contact with sulfur-containing waste gas.

[0004] While this technical solution offers advantages such as facilitating remote sampling and avoiding close contact with sulfur-containing waste gas, it also has some shortcomings in practical application. Firstly, it uses a fan and motor for suction sampling, which are heavy and require an external power source, making it inconvenient to carry and use for on-site sampling. Secondly, the angle of the air inlet at the end is not adjustable, preventing the air inlet from being aligned with the sampling site according to actual conditions, thus affecting its ease of use. Therefore, we propose a sulfur-containing waste gas sampling device. Utility Model Content

[0005] The purpose of this invention is to provide a sulfur-containing waste gas sampling device to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sulfur-containing waste gas sampling device includes a suction storage cylinder for suction sampling operations. A threaded tube is fixedly installed at the air inlet end of the suction storage cylinder. A first external connector is detachably installed at the end of the threaded tube. A second external connector is detachably installed at the end of the first external connector. A gooseneck tube is detachably installed at the end of the second external connector. The suction storage cylinder includes a cylinder body. The threaded tube is fixedly installed on the cylinder body. A connecting rod is slidably connected inside the cylinder body. A piston located inside the cylinder body and slidably connected to the cylinder body is fixedly installed at the bottom end of the connecting rod.

[0008] Preferably, two symmetrical limiting protrusions are fixedly installed on the inner wall of the top cylinder of the cylinder, and the limiting protrusions are used to limit the outward pulling of the piston.

[0009] Preferably, a one-way valve is fixedly installed on the threaded pipe, and the one-way valve is used for gas to enter the cylinder in one direction only.

[0010] Preferably, a discharge pipe is fixedly installed at the bottom of the cylinder, and a sealing cap is threaded onto the discharge pipe;

[0011] This setting allows the internal sample to be discharged through the discharge tube during the testing process.

[0012] Preferably, a lifting ring is fixedly installed at the top end of the cylinder, and a handle is fixedly installed at the top end of the connecting rod;

[0013] This feature makes it easier to hold and draw samples.

[0014] Preferably, an air suction hood is fixedly installed at the bottom end of the gooseneck tube, and the air suction hood is trumpet-shaped.

[0015] Preferably, threaded connectors are fixedly installed at the top end of the gooseneck tube, the top end of the second outer tube, and the top end of the first outer tube, and the threaded connectors are threadedly connected to the corresponding second outer tube, first outer tube, and threaded tube.

[0016] This setting facilitates appropriate installation operations as needed.

[0017] Preferably, a sealing ring is fitted on the threaded connector, and a knob is also fixedly installed on the threaded connector on the gooseneck tube.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model adopts a suction storage cylinder combined with a connecting rod and piston structure design, which eliminates the traditional suction method of fans and motors. The overall weight of the device is greatly reduced, no external power supply is required, and it is easy to carry. It can meet the needs of rapid sampling in different field environments and achieve the effect of improving the convenience and mobility of sampling work.

[0020] 2. This utility model utilizes the detachable connection of the gooseneck tube, the first outer tube, and the second outer tube, as well as the setting of the knob and threaded joint at the top of the gooseneck tube, to make the angle of the suction hood flexibly adjustable according to the actual sampling needs. It can accurately target the sulfur-containing waste gas collection point, realize efficient sampling operation, effectively improve the convenience and applicability of the sampling process, and meet the sampling requirements under complex working conditions.

[0021] 3. This utility model ensures that gas enters the cylinder in one direction only by installing a one-way valve on the threaded pipe. At the same time, the bottom of the cylinder is equipped with a discharge pipe and a sealing cap, and the inner wall of the top is equipped with a limiting protrusion. This structural design not only ensures that the collected sulfur-containing waste gas samples do not leak or flow back, realizing the safe storage and convenient discharge of the samples, but also prevents the piston from being pulled out excessively and damaging the device, thereby improving the integrity of the samples and the service life of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0024] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a partial structural schematic diagram of the present invention;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Suction storage cylinder; 10. Cylinder body; 101. Limiting protrusion; 11. Threaded pipe; 12. One-way valve; 13. Discharge pipe; 131. Sealing cap; 14. Lifting ring; 15. Connecting rod; 151. Piston; 16. Handle;

[0028] 2. First external connection;

[0029] 3. Second external takeover;

[0030] 4. Knob; 40. Gooseneck tube; 41. Suction hood;

[0031] 5. Threaded connector; 50. Sealing ring. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-4 This utility model provides a technical solution: a sulfur-containing waste gas sampling device, including a suction storage cylinder 1 for suction sampling operation. A threaded pipe 11 is fixedly installed at the air inlet end of the suction storage cylinder 1. The suction storage cylinder 1 includes a cylinder body 10. The threaded pipe 11 is fixedly installed on the cylinder body 10. A connecting rod 15 is slidably connected inside the cylinder body 10. A piston 151 located inside the cylinder body 10 and slidably connected to the cylinder body 10 is fixedly installed at the bottom end of the connecting rod 15. The cylinder body 10, the slidably connected connecting rod 15, and the piston 151 cooperate to form a manual suction structure, which does not rely on traditional fans and motors, freeing the device from the limitation of external power supply, greatly reducing weight, and making it convenient for staff to carry to various field environments for rapid sampling operations.

[0034] In this embodiment, a first external pipe 2 is detachably installed at the end of the threaded pipe 11, and a second external pipe 3 is detachably installed at the end of the first external pipe 2. This allows for easy replacement of external pipes of different lengths or types according to sampling requirements, and provides a channel for subsequent gas to enter the cylinder 10. This enhances the flexibility and adaptability of the device, enabling free adjustment of the sampling device length during the sampling process. Under complex working conditions, staff can flexibly adjust the overall length according to the actual distance and space conditions to ensure effective collection of sulfur-containing waste gas samples, thereby improving the convenience and effectiveness of sampling.

[0035] like Figure 3 As shown, a gooseneck tube 40 is detachably installed at the end of the second external tube 3, and an air suction hood 41 is fixedly installed at the bottom end of the gooseneck tube 40. The air suction hood 41 is horn-shaped, which allows the air suction hood 41 to be flexibly adjusted at multiple angles, so as to accurately target the emission source of sulfur-containing waste gas and achieve efficient sampling. It is especially suitable for sampling work in different directions and complex environments.

[0036] like Figure 4 As shown, two symmetrical limiting protrusions 101 are fixedly installed on the inner wall of the top cylinder 10. The limiting protrusions 101 are used to limit the outward pulling of the piston 151. They can limit the outward pulling stroke of the piston 151, effectively preventing the piston 151 from being pulled out excessively and detaching from the cylinder 10, ensuring the integrity and stability of the device structure, extending the service life of the device, and avoiding problems such as sampling interruption or sample leakage caused by the piston 151 detaching.

[0037] like Figure 4 As shown, a one-way valve 12 is fixedly installed on the threaded pipe 11. The one-way valve 12 is used for gas to enter the cylinder 10 in one direction, strictly controlling the gas flow direction and allowing only sulfur-containing waste gas to enter the cylinder 10 in one direction. This prevents the gas already collected in the cylinder from flowing back, ensuring the accuracy and integrity of the collected samples, avoiding the contamination of the samples by external gases, and providing reliable samples for subsequent accurate analysis.

[0038] like Figure 4 As shown, a discharge pipe 13 is fixedly installed at the bottom of the cylinder 10. A sealing cap 131 is threaded onto the discharge pipe 13. After sampling, the sulfur-containing waste gas sample in the cylinder can be conveniently discharged for testing and analysis. The sealing cap 131 ensures that the sample will not leak during storage and transportation, thus ensuring sample safety.

[0039] like Figure 4 As shown, a lifting ring 14 is fixedly installed at the top of the cylinder 10, and a handle 16 is fixedly installed at the top of the connecting rod 15, providing a stable and comfortable grip for the staff. When performing manual suction sampling, the lifting ring 14 can assist in supporting the device, and the handle 16 makes it easy to apply force to pull the connecting rod 15, making the sampling operation more labor-saving and convenient, and improving the operating experience.

[0040] It is worth noting that threaded connectors 5 are fixedly installed at the top of the gooseneck tube 40, the top of the second outer tube 3, and the top of the first outer tube 2. The threaded connectors 5 are threadedly connected to the corresponding second outer tube 3, first outer tube 2, and threaded tube 11. A sealing ring 50 is fitted on the threaded connector 5. A knob 4 is also fixedly installed on the threaded connector 5 on the gooseneck tube 40 to ensure the sealing of the connection and prevent sulfur-containing waste gas from leaking from the interface during the sampling process. This not only ensures the accuracy of the sampled samples but also avoids the harm to the staff caused by waste gas leakage, thus improving the safety and reliability of the device.

[0041] When using the sulfur-containing waste gas sampling device of this utility model, according to the actual situation of the sampling site, the threaded pipe 11 is connected to the first outer pipe 2 and the second outer pipe 3 of appropriate length through the threaded joint 5 in sequence, and then the gooseneck pipe 40 is connected to the end of the second outer pipe 3. The orientation of the suction hood 41 is adjusted by bending the gooseneck pipe 40 so that the suction hood 41 faces the sulfur-containing waste gas discharge point. The sealing cap 131 is tightened to close the discharge pipe 13.

[0042] During the sampling process, the staff holds the handle 16 at the top of the connecting rod 15 and uses the other hand to assist in lifting the lifting ring 14 at the top of the cylinder 10, pulling the connecting rod 15 outward to drive the piston 151 to slide inside the cylinder 10. Under the action of the pressure difference, the sulfur-containing waste gas passes through the suction hood 41, gooseneck pipe 40, second external pipe 3, first external pipe 2 and threaded pipe 11, and enters the cylinder 10 through the one-way valve 12. The limiting protrusion 101 prevents the piston 151 from being pulled out excessively.

[0043] After sampling is completed, if it is necessary to change the sampling location or test the sample, each component can be disassembled through the threaded joint 5, carried to the laboratory, and the sealing cover 131 can be opened to discharge the sulfur-containing waste gas sample in the cylinder from the discharge pipe 13 for analysis.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sulfur-containing waste gas sampling device, characterized in that: The device includes a suction storage cylinder (1) for suction sampling operations. A threaded tube (11) is fixedly installed at the air inlet end of the suction storage cylinder (1). A first external tube (2) is detachably installed at the end of the threaded tube (11). A second external tube (3) is detachably installed at the end of the first external tube (2). A gooseneck tube (40) is detachably installed at the end of the second external tube (3). The suction storage cylinder (1) includes a cylinder body (10). The threaded tube (11) is fixedly installed on the cylinder body (10). A connecting rod (15) is slidably connected inside the cylinder body (10). A piston (151) is fixedly installed at the bottom end of the connecting rod (15) and is located inside the cylinder body (10) and slidably connected to the cylinder body (10).

2. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: Two mutually symmetrical limiting protrusions (101) are fixedly installed on the inner wall of the top cylinder (10). The limiting protrusions (101) are used to limit the outward pulling of the piston (151).

3. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: A one-way valve (12) is fixedly installed on the threaded pipe (11), and the one-way valve (12) is used for gas to enter the cylinder (10) in one direction.

4. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: A discharge pipe (13) is fixedly installed at the bottom of the cylinder (10), and a sealing cap (131) is threaded onto the discharge pipe (13).

5. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: A lifting ring (14) is fixedly installed at the top of the cylinder (10), and a handle (16) is fixedly installed at the top of the connecting rod (15).

6. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: An air suction hood (41) is fixedly installed at the bottom end of the gooseneck tube (40), and the air suction hood (41) is horn-shaped.

7. The sulfur-containing waste gas sampling device according to claim 1, characterized in that: The top end of the gooseneck tube (40), the top end of the second outer tube (3), and the top end of the first outer tube (2) are all fixedly installed with threaded joints (5), and the threaded joints (5) are threadedly connected to the corresponding second outer tube (3), first outer tube (2), and threaded tube (11).

8. The sulfur-containing waste gas sampling device according to claim 7, characterized in that: A sealing ring (50) is fitted on the threaded connector (5), and a knob (4) is also fixedly installed on the threaded connector (5) on the gooseneck tube (40).

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