Sampling device
By designing a closed-chamber sampling device, the problem of acid mist threat during manual hydrochloric acid sampling was solved, realizing an automated, quantitative, and safe hydrochloric acid sampling process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG LANXI JUHUA FLUORINE CHEM CO LTD
- Filing Date
- 2025-03-12
- Publication Date
- 2026-04-28
AI Technical Summary
During the production of refrigerant R22, the volatilized acid fumes emitted during manual sampling of hydrochloric acid pose a threat to the environment and the health of operators.
Design a sampling device that takes samples through a sealed chamber. Use an automatic quantitative sampling valve and an exhaust pipe to introduce hydrochloric acid into the sealed chamber, and treat the acid mist through the exhaust pipe and an acid mist treatment device. Use a detection device to monitor the acid mist concentration, and ensure the airtightness of the rinsing port and the acid discharge port.
It effectively prevents acid mist from threatening the environment and operators during the sampling process, realizes automated and quantitative sampling, and ensures safety and convenience.
Smart Images
Figure CN224176182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydrochloric acid sampling equipment, and specifically to a sampling device. Background Technology
[0002] During the production of refrigerant R22, hydrochloric acid is generated as a byproduct. In order to meet the testing requirements of the production process and ensure the delivery of qualified products, hydrochloric acid needs to be sampled and tested to monitor its concentration, purity and other key indicators.
[0003] Currently, manual sampling is commonly used in the production process. This involves operators directly using sampling containers to collect samples from hydrochloric acid storage tanks or pipelines. Because hydrochloric acid is highly volatile and corrosive, acid mist is released during the sampling process, posing a threat to the surrounding environment and the health of the operators. Utility Model Content
[0004] This utility model aims to at least partially solve one of the technical problems in the related art.
[0005] Therefore, embodiments of this utility model propose a sampling device. When hydrochloric acid is sampled using this sampling device, the entire sampling process is carried out in a closed chamber, thereby preventing the acid mist volatilized during the sampling process from threatening the surrounding environment and the health of the operators.
[0006] The sampling device of this utility model embodiment includes a sampling pipe, a sampling valve, a sampling container and a box body. The sampling pipe has a first end and a second end for connecting to a hydrochloric acid pipe. The sampling valve is connected to the sampling pipe. The box body has a sealed cavity. The sampling pipe communicates with the sealed cavity. The sampling container is disposed in the sealed cavity. The sampling container has an upward-facing opening located below the first end.
[0007] In some embodiments, the sampling valve is an automatic quantitative sampling valve.
[0008] In some embodiments, the sampling device further includes an exhaust pipe and a suction valve, one end of the exhaust pipe being connected to the sealed cavity and the other end being used to connect to the acid mist treatment device, and the suction valve being connected to the sampling pipe.
[0009] In some embodiments, the sealed cavity is provided with a detection device for detecting acid mist concentration, and the suction valve is an automatic suction valve, which is electrically connected to the detection device.
[0010] In some embodiments, the bottom wall of the box has an acid drain port for connecting to a sewage pipe, and the acid drain port is connected to the sealed cavity.
[0011] In some embodiments, the side wall of the housing has a rinsing port that communicates with the sealed cavity.
[0012] In some embodiments, the box body includes a box body and a door, the box body having a door groove, and the door being movably connected to the box body such that the door groove can switch between a blocked mode and an open mode.
[0013] In some embodiments, the door is slidably connected to the box body.
[0014] In some embodiments, at least one of the door body and the box body is provided with a sealing ring, and when the door groove is in a blocking mode, the sealing ring is provided between the door body and the box body.
[0015] In some embodiments, the sampling device further includes a magnetic attraction device, which includes a first magnet and a second magnet. One of the first magnet and the second magnet is connected to the door body, and the other is connected to the box body. In the blocking mode, the first magnet and the second magnet magnetically engage.
[0016] The sampling device of this embodiment controls the opening and closing of the sampling pipeline via a sampling valve. Opening the sampling valve connects the sampling pipeline, allowing hydrochloric acid to be guided from the hydrochloric acid pipeline into the sealed cavity of the container. The hydrochloric acid then exits through the first end of the sampling pipeline and enters the sampling container, completing the sampling process. The entire sampling process is conducted within a sealed cavity, thus preventing the release of acid fumes during sampling from posing a threat to the surrounding environment and the health of the operators. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the sampling device according to an embodiment of the present invention.
[0018] Figure label:
[0019] 100. Sampling device;
[0020] 1. Sampling pipeline; 11. Sampling valve;
[0021] 2. Sampling container;
[0022] 3. Box body; 31. Sealed cavity; 32. Sampling port; 33. Acid discharge port; 34. Rinse port; 35. Box body; 36. Door;
[0023] 4. Exhaust pipe; 41. Suction valve;
[0024] 5. Detection device;
[0025] 6. Magnetic clasp. Detailed Implementation
[0026] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0027] like Figure 1 As shown, the sampling device 100 of this utility model embodiment includes a sampling pipe 1, a sampling valve 11, a sampling container 2, and a box body 3. The sampling pipe 1 has a first end and a second end for connecting to a hydrochloric acid pipe (not shown in the figure). The sampling valve 11 is connected to the sampling pipe 1. The box body 3 has a sealed cavity 31. The sampling pipe 1 communicates with the sealed cavity 31. The sampling container 2 is disposed in the sealed cavity 31. The sampling container 2 has an upward-facing opening located below the first end.
[0028] The sampling device 100 of this embodiment controls the opening and closing of the sampling pipeline 1 via the sampling valve 11. When the sampling valve 11 is opened, the sampling pipeline 1 is connected, and the hydrochloric acid in the hydrochloric acid pipeline is guided into the sealed cavity 31 of the housing 3 through the sampling pipeline 1. Then, the hydrochloric acid is discharged through the first end of the sampling pipeline 1 and enters the sampling container 2, completing the sampling. The entire sampling process is carried out within the sealed cavity 31, thereby preventing the acid fumes volatilized during the sampling process from posing a threat to the surrounding environment and the health of the operators.
[0029] It is understood that the sampling device 100 of this utility model embodiment is applicable to other volatile and corrosive liquids, such as nitric acid, hydrofluoric acid, etc.
[0030] Optionally, the sampling pipe 1 is located below the hydrochloric acid pipe.
[0031] Therefore, there is no need to install a pump on sampling pipe 1. The hydrochloric acid in the hydrochloric acid pipe can directly enter sampling pipe 1 under the action of gravity, making the operation more convenient.
[0032] like Figure 1 As shown, the outer contour of the box body 3 is rectangular. The sampling pipe 1 is located on the upper side of the box body 3. The top wall of the box body 3 has a through sampling port 32. The second end of the sampling pipe 1 is inserted into the sampling port 32. The sampling container 2 is a sampling bottle with its opening facing upward. The sampling bottle is placed on the bottom wall of the box body 3 and is located directly below the sampling port 32. When the sampling valve 11 is opened, hydrochloric acid enters the sampling bottle through the second end of the sampling pipe 1.
[0033] Optionally, the bottom wall of the box body 3 has a groove for placing the sampling container 2, the groove being located directly below the sampling port 32.
[0034] Therefore, placing the sampling container 2 in the groove will position the sampling container 2 directly below the sampling port 32, which will make it easier to position the sampling container 2.
[0035] In some embodiments, the sampling valve 11 is an automatic quantitative sampling valve 11.
[0036] By setting the sampling valve 11 as an automatic quantitative sampling valve 11, the automation and quantification of hydrochloric acid sampling can be realized, thereby further improving the convenience of hydrochloric acid sampling.
[0037] In some embodiments, such as Figure 1 As shown, the sampling device 100 also includes an exhaust pipe 4 and a suction valve 41. One end of the exhaust pipe 4 is connected to the sealed cavity 31, and the other end is used to connect to the acid mist treatment device. The suction valve 41 is connected to the sampling pipe 1.
[0038] With the above settings, the suction valve 41 is opened, and the acid mist generated during the sampling process can be discharged through the exhaust pipe 4 at the same time as the sample is taken, and then enter the acid mist treatment device for treatment, so as to prevent acid mist from overflowing when the operator takes out the sampling container 2.
[0039] Optionally, the acid mist treatment device is a hydrochloric acid absorption device.
[0040] As an example, the exhaust pipe 4 is located on the upper side of the box 3. One end of the exhaust pipe 4 passes through the top wall of the box 3, and the other end is connected to the acid mist treatment device. The suction valve 41 is located on the exhaust pipe 4. When the suction valve 41 is opened, the acid mist and gas in the sealed chamber 31 can automatically enter the exhaust pipe 4 and be absorbed by the hydrochloric acid absorption device.
[0041] In some embodiments, a detection device 5 for detecting acid mist concentration is provided in the sealed cavity 31, and the suction valve 41 is an automatic suction valve 41, which is electrically connected to the detection device 5.
[0042] The detection device 5 can detect the acid mist concentration in the sealed cavity 31. By electrically connecting the automatic suction valve 41 to the detection device 5, the automatic suction valve 41 can automatically open or close based on the detection data of the detection device 5, thereby realizing the automatic suction of acid mist in the sealed cavity 31.
[0043] like Figure 1 As shown, the detection device 5 is located on the side wall of the sealed cavity 31.
[0044] In some embodiments, such as Figure 1 As shown, the bottom wall of the box 3 has an acid discharge port 33 for connecting to the sewage pipe, and the acid discharge port 33 is connected to the sealed cavity 31.
[0045] It is known that the acid mist generated during the sampling process fills the sealed cavity 31. Part of the acid mist enters the exhaust pipe 4 in gaseous form, while the other part of the acid mist is liquefied and stored in the sealed cavity 31 in liquid form. By setting an acid discharge port 33 on the bottom wall of the box body 3, the liquid acid mist enters the sewage pipe for further treatment through the acid discharge port 33.
[0046] In some embodiments, such as Figure 1 As shown, the side wall of the box 3 has a rinsing port 34, which is connected to the sealed cavity 31.
[0047] By setting up a rinsing port 34, after each sampling is completed, the gaseous acid mist in the sealed chamber 31 is discharged through the exhaust pipe 4 to the acid mist treatment device for treatment, and the liquid acid mist in the sealed chamber 31 is discharged through the acid discharge port 33 to the sewage pipe for treatment. Afterwards, cleaning fluid is injected into the sealed chamber 31 through the rinsing port 34 to clean the sealed chamber 31, wash away the hydrochloric acid in the sealed chamber 31, and ensure the cleanliness of the sealed chamber 31.
[0048] Optionally, a plug may be detachably connected inside the flushing port 34.
[0049] Therefore, the airtightness of the sealed cavity 31 can be guaranteed during the sampling process.
[0050] In some embodiments, such as Figure 1 As shown, the box body 3 includes a box body 35 and a door body 36. The box body 35 has a door groove, and the door body 36 is movably connected to the box body 35 so that the door groove can switch between a blocked mode and an open mode.
[0051] By adjusting the position of the door 36, the door slot can be switched between the blocking mode and the opening mode. When the door slot is in the opening mode, the operator can put or take out the sampling container 2 into the sealed cavity 31. When the door slot is in the blocking mode, the sealed cavity 31 is in a sealed state, and the sampling valve 11 can be opened to take samples, thereby ensuring the airtightness of the sampling process and preventing the acid mist generated during the sampling process from threatening the surrounding environment and the health of the operators.
[0052] In some embodiments, the door 36 is slidably connected to the box body 35.
[0053] As an example, such as Figure 1 As shown, one side wall of the box body 35 has a through-hole door groove, the width of which is half the total width of the side wall, allowing the sampling container 2 to pass through. The door 36 matches the size of the door groove, and the box body 3 is provided with a slide rail. The door 36 is slidably connected to the box body 35 along its width direction via the slide rail. When the door 36 slides away from the door groove, the door groove can be fully opened, which is the open state of the door groove. When the door 36 slides closer to the door groove, the door groove can be completely sealed, which is the sealed state of the door groove.
[0054] In some embodiments, at least one of the door body 36 and the box body 35 is provided with a sealing ring. When the door groove is in a blocking mode, the sealing ring is provided between the door body 36 and the box body 35.
[0055] By setting a sealing ring between the door body 36 and the box body 35, the airtightness of the sealed cavity 31 when the door groove is in a blocked state can be improved.
[0056] Optionally, the sealing ring is a flexible PTFE sealing layer.
[0057] Optionally, a sealing ring is provided on the door body 36 and surrounds the side wall of the door body 36.
[0058] In some embodiments, the sampling device 100 further includes a magnetic attraction device, which includes a first magnet and a second magnet. One of the first magnet and the second magnet is connected to the door 36, and the other is connected to the box body 35. In the blocking mode, the first magnet and the second magnet magnetically engage.
[0059] By using magnetic attraction to connect the door 36 to the box body 35, the door slot can be stably kept in the sealed mode, reducing the risk of acid mist leakage caused by the door 36 being suddenly opened during the sampling process, and further improving the safety of the sampling process.
[0060] Optionally, the magnetic attraction device is a non-contact sealed magnetic clasp 6.
[0061] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0064] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0065] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.
Claims
1. A sampling device (100), characterized in that, The sample includes a sampling pipe (1), a sampling valve (11), a sampling container (2), and a housing (3). The sampling pipe (1) has a first end and a second end for connecting to a hydrochloric acid pipe. The sampling valve (11) is connected to the sampling pipe (1). The housing (3) has a sealed cavity (31). The sampling pipe (1) is connected to the sealed cavity (31). The sampling container (2) is located in the sealed cavity (31). The sampling container (2) has an upward-facing opening located below the first end.
2. The sampling device (100) according to claim 1, characterized in that, The sampling valve (11) is an automatic quantitative sampling valve (11).
3. The sampling device (100) according to claim 1, characterized in that, It also includes an exhaust pipe (4) and a suction valve (41). One end of the exhaust pipe (4) is connected to the sealed cavity (31), and the other end is used to connect to the acid mist treatment device. The suction valve (41) is connected to the sampling pipe (1).
4. The sampling device (100) according to claim 3, characterized in that, The sealed cavity (31) is equipped with a detection device (5) for detecting acid mist concentration. The suction valve (41) is an automatic suction valve (41) and is electrically connected to the detection device (5).
5. The sampling device (100) according to claim 1, characterized in that, The bottom wall of the box (3) has an acid drain port (33) for connecting to a sewage pipe, and the acid drain port (33) is connected to the sealed cavity (31).
6. The sampling device (100) according to claim 1, characterized in that, The side wall of the box (3) has a rinsing port (34), which is connected to the sealed cavity (31).
7. The sampling device (100) according to any one of claims 1-6, characterized in that, The box (3) includes a box body (35) and a door (36). The box body (35) has a door groove, and the door (36) is movably connected to the box body (35) so that the door groove can switch between a blocking mode and an opening mode.
8. The sampling device (100) according to claim 7, characterized in that, The door (36) is slidably connected to the box body (35).
9. The sampling device (100) according to claim 8, characterized in that, At least one of the door body (36) and the box body (35) is provided with a sealing ring. When the door groove is in the blocking mode, the sealing ring is located between the door body (36) and the box body (35).
10. The sampling device (100) according to claim 8, characterized in that, It also includes a magnetic attraction device, which includes a first magnet and a second magnet. One of the first magnet and the second magnet is connected to the door body (36), and the other is connected to the box body (35). In the blocking mode, the first magnet and the second magnet magnetically attract each other.