A mobile sampling device for sampling dangerous chemicals

Abstract

The present application relates to the technical field of chemical equipment, in particular to a movable sampling device for hazardous chemical sampling, comprising a box mechanism for covering the hazardous chemical barrel to be sampled, wherein the box mechanism comprises a box frame, a top cover is installed on the top of the box frame, a gas pipe connected with a gas collecting box is installed on the top cover, and an adjustable air suction nozzle mechanism is installed below the top cover. The movable sampling space is moved to the hazardous chemical barrel by universal wheels to realize in-situ sampling, thereby avoiding the risk of carrying heavy barrels. The adjustable air suction nozzle mechanism can be accurately positioned to the barrel opening to realize efficient capture and removal of harmful gases at the source, thereby constructing a safe and efficient local working environment and significantly improving the safety and convenience of sampling.

Description

Technical Field

[0001] This invention relates to the field of chemical equipment technology, specifically to a mobile sampling device for sampling hazardous chemicals. Background Technology

[0002] In chemical production, it is necessary to sample and analyze hazardous chemicals stored in drums. These hazardous chemicals are usually flammable, explosive, toxic, or corrosive. If vapor leaks occur during the sampling process, they can easily endanger the health of operators and pose risks of environmental pollution and safety accidents.

[0003] Currently, sampling of containerized hazardous chemicals in fixed locations faces the following challenges: First, if the hazardous chemical containers are moved to a fixed fume hood for sampling, the heavy containers make the process laborious and pose risks of bumping and tipping, thus increasing safety hazards. Second, if sampling is conducted directly on-site with the container open, although some portable ventilation devices can be used, it is difficult to create an effective and stable closed negative pressure environment around the sampling point, allowing harmful gases to easily escape and compromising the safety of personnel in the surrounding environment. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the present invention aims to provide a mobile sampling device for sampling hazardous chemicals, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A portable sampling device for hazardous chemical sampling includes: a housing structure for covering the outside of the hazardous chemical container to be sampled; the housing structure includes a frame, a top cover is installed on the top of the frame, a gas pipe connected to a gas collection box is installed on the top cover, and an adjustable exhaust nozzle mechanism is installed under the top cover. The adjustable exhaust nozzle mechanism is used to discharge leaked gas during hazardous chemical sampling into the gas collection box through the gas pipe via an exhaust fan unit; the adjustable exhaust nozzle mechanism includes a guide member, a corrugated telescopic tube, a long nozzle, and a locking assembly; the corrugated telescopic tube is connected between the guide member and the long nozzle; the locking assembly is installed on the long nozzle, and when the long nozzle is moved to the opening of the container to be sampled, the long nozzle is fixed by the locking assembly.

[0006] Preferably, the exhaust fan unit is installed inside the box frame via a bracket, the air guide is installed inside the box frame, and the air guide has two openings, one at the top and one at the bottom.

[0007] Preferably, the upper opening of the flow guide is larger than the lower opening, and the lower opening of the flow guide is connected to the corrugated expansion tube.

[0008] Preferably, the locking assembly on the elongated air nozzle includes an elongated pad, the top of which is fixedly connected to a cylinder via a bracket, and an inner rod is slidably connected inside the cylinder, with one end of the inner rod connected to an L-shaped handle.

[0009] Preferably, a spring is connected between the cylinder and the inner rod, the spring is placed in the groove of the cylinder, and an anti-slip foot is fixedly connected to the end of the inner rod away from the L handle, and the anti-slip foot contacts a partition.

[0010] Preferably, the box frame is provided with viewing windows and push rings on both sides, and partition doors are provided on the other two sides of the box frame.

[0011] Preferably, the partition door hinged box frame has four casters at its bottom.

[0012] Preferably, the push ring surface is provided with anti-slip texture, and a latch is provided between the partition door and the box frame.

[0013] Preferably, the partition door can be locked from the inside when closed on the side of the box frame.

[0014] Preferably, the surface of the L-handle is provided with anti-slip texture, and the locking assembly has two sets of cylinder, inner rod, L-handle and spring, and the two sets of cylinder, inner rod, L-handle and spring are symmetrically distributed on the long pad.

[0015] Compared with the prior art, the beneficial effects of the present invention are: The device is equipped with casters at the bottom, allowing it to be easily moved to any designated hazardous chemical container and covered. This eliminates the need for operators to move the heavy and dangerous containers themselves, greatly reducing the risks during handling and enabling in-situ safe sampling of containerized hazardous chemicals stored at designated locations, thus improving the safety and convenience of the operation. By setting up an adjustable exhaust nozzle mechanism connected by a corrugated telescopic tube, the operator can flexibly adjust the height and orientation of the long exhaust nozzle according to the actual position of the sample container opening, so that its opening is precisely aligned with the volatile source. This allows the gas to be effectively drawn into the exhaust system before it diffuses, significantly improving the collection efficiency and extraction effect of harmful gases and preventing the gas from diffusing inside the chamber to the greatest extent. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention. Figure 2 This is a schematic diagram of the bottom structure of the present invention; Figure 3 This is a top view of the structure of the present invention; Figure 4 For the present invention Figure 3 A: A structural schematic diagram of the cross-section of section A; Figure 5 For the present invention Figure 3 A structural schematic diagram of the C:C section. Figure 6 This is a schematic diagram of the internal structure of the box frame component of the present invention; Figure 7 This is a cross-sectional structural schematic diagram of the locking component of the present invention.

[0017] In the diagram: 1. Box frame; 11. Push ring; 12. Viewing window; 13. Casters; 14. Partition door; 15. Top cover; 2. Exhaust fan unit; 3. Air guide; 4. Corrugated expansion tube; 5. Long air nozzle; 51. Long pad; 52. Cylinder; 53. Inner rod; 54. L-handle; 55. Spring. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] One embodiment provided by the present invention: A portable sampling device for sampling hazardous chemicals, comprising: refer to Figures 1-2 The box structure is used to cover the outside of the hazardous chemical container to be sampled. The box structure includes a box frame 1, a top cover 15 is installed on the top of the box frame 1, an air pipe connected to the gas collection box is installed on the top cover 15, and an adjustable exhaust nozzle mechanism is installed under the top cover 15. The adjustable exhaust nozzle mechanism is used to discharge the leaked gas during the sampling of hazardous chemicals into the gas collection box through the air pipe via the exhaust fan unit 2. refer to Figures 4-7 The adjustable exhaust nozzle mechanism includes a flow guide 3, a corrugated telescopic tube 4, a long air nozzle 5, and a locking assembly. The corrugated telescopic tube 4 is connected between the flow guide 3 and the long air nozzle 5. The locking assembly is installed on the long air nozzle 5. When the long air nozzle 5 is moved to the position of the sampling bucket opening, the long air nozzle 5 is fixed by the locking assembly.

[0020] The exhaust fan unit 2 is installed inside the box frame 1 by a bracket, and the flow guide 3 is installed inside the box frame 1. The flow guide 3 has two openings, one at the top and one at the bottom.

[0021] The upper opening of the guide member 3 is large and the lower opening is small. The lower opening of the guide member 3 is connected to the corrugated telescopic tube 4.

[0022] The locking assembly on the elongated air nozzle 5 includes an elongated pad 51. The top of the elongated pad 51 is fixedly connected to a cylinder 52 via a bracket. An inner rod 53 is slidably connected inside the cylinder 52. One end of the inner rod 53 is connected to an L-shaped handle 54.

[0023] A spring 55 is connected between the cylinder 52 and the inner rod 53. The spring 55 is placed in the groove of the cylinder 52. An anti-slip foot is fixedly connected to the end of the inner rod 53 away from the L handle 54, and the anti-slip foot contacts the partition door 14.

[0024] The box frame 1 has symmetrically arranged viewing windows 12 and push rings 11 on both sides, and symmetrically arranged partition doors 14 on the other two sides.

[0025] The partition door 14 is hinged to the box frame 1, and the bottom of the box frame 1 is provided with four casters 13.

[0026] The push ring 11 has anti-slip texture on its surface, and the partition door 14 is provided with a lock between it and the box frame 1.

[0027] The partition door 14 can be locked from the inside when the side of the box frame 1 is closed.

[0028] The surface of the L-handle 54 is provided with anti-slip texture. The locking assembly has two sets of cylinder 52, inner rod 53, L-handle 54 and spring 55, and the two sets of cylinder 52, inner rod 53, L-handle 54 and spring 55 are symmetrically distributed on the long pad 51.

[0029] Working principle: When sampling of containerized hazardous chemicals is required, first open the partition doors 14 on both sides of the frame 1, and move the device to the predetermined position using the casters 13 at the bottom, so that the frame 1 completely covers the hazardous chemical container to be sampled. Then, connect the air pipe on the top cover 15 to the external gas collection box (not shown in the figure, representing existing technology). After positioning and connection, start the exhaust fan unit 2. At this time, the air inside the frame 1 is drawn in, creating a negative pressure environment. The airflow path is as follows: the gas evaporating from the opening of the hazardous chemical container is captured by the long nozzle 5, flows sequentially through the corrugated expansion pipe 4, the guide component 3, and the exhaust fan unit 2, and finally is discharged into the gas collection box through the air pipe for purification treatment, thereby preventing the leakage of harmful gases and environmental pollution.

[0030] Before the formal sampling operation, the partition door 14 must be closed and locked with a latch to ensure the airtightness of the chamber mechanism. To achieve the best gas capture effect, the position of the elongated nozzle 5 can be adjusted so that its opening is precisely aligned with the barrel opening. During adjustment, the operator simultaneously holds both L-handles 54 and presses them inward, causing the inner rod 53 to move axially against the elastic force of the spring 55, so that the anti-slip foot at the end of the inner rod 53 disengages from the partition door 14. At this time, the elongated nozzle 5 can move freely. After adjusting it to the optimal position, release the L-handles 54. The spring 55 rebounds and pushes the inner rod 53 and its anti-slip foot tightly against the partition door 14, using friction to reliably lock the elongated nozzle 5.

[0031] During sampling, volatile gases generated by the hazardous chemicals are efficiently drawn in and expelled by the elongated nozzle 5 above the container opening. After the sampling operation is completed, the hazardous chemical container is sealed, the elongated nozzle 5 is reset, the partition door 14 is opened, and personnel can safely leave, and the device is moved away from the site. The core advantage of this device is that it eliminates the need to move the bulky storage container itself when sampling hazardous chemical containers at designated locations, significantly improving the safety and convenience of operation.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mobile sampling device for sampling a hazardous chemical, characterized by, include: A housing mechanism is used to cover the outside of the hazardous chemical container to be sampled. The housing mechanism includes a frame, a top cover is installed on the top of the frame, an air pipe connected to a gas collection box is installed on the top cover, and an adjustable exhaust nozzle mechanism is installed under the top cover. The adjustable exhaust nozzle mechanism is used to discharge leaked gas during hazardous chemical sampling into the gas collection box through the air pipe via an exhaust fan unit. The adjustable exhaust nozzle mechanism includes a flow guide, a corrugated telescopic tube, a long air nozzle, and a locking component. The corrugated telescopic tube is connected between the flow guide and the long air nozzle. The locking component is installed on the long air nozzle. When the long air nozzle is moved to the position of the sampling bucket opening, the long air nozzle is fixed by the locking component.

2. The mobile sampling device for sampling of hazardous chemicals according to claim 1, characterized in that: The exhaust fan unit is installed inside the box frame via a bracket, and the flow guide is installed inside the box frame. The flow guide has two openings, one at the top and one at the bottom.

3. The mobile sampling device for sampling of hazardous chemicals according to claim 2, characterized in that: The upper opening of the flow guide is large and the lower opening is small, and the lower opening of the flow guide is connected to the corrugated expansion tube.

4. The mobile sampling device for sampling of hazardous chemicals according to claim 3, characterized in that: The locking assembly on the elongated air nozzle includes a long pad, the top of which is fixedly connected to a cylinder via a bracket, and an inner rod is slidably connected inside the cylinder, with one end of the inner rod connected to an L-shaped handle.

5. The mobile sampling device for sampling of hazardous chemicals according to claim 4, characterized in that: A spring is connected between the cylinder and the inner rod. The spring is placed in the groove of the cylinder. An anti-slip foot is fixedly connected to the end of the inner rod away from the L handle, and the anti-slip foot contacts a partition.

6. The mobile sampling device for sampling of hazardous chemicals according to claim 1, characterized in that: The box frame is symmetrically provided with viewing windows and push rings on both sides, and partition doors are symmetrically provided on the other two sides of the box frame.

7. The mobile sampling device for sampling of hazardous chemicals according to claim 6, characterized in that: The partition door hinged box frame has four casters at its bottom.

8. The mobile sampling device for sampling of hazardous chemicals according to claim 7, characterized in that: The push ring surface is provided with anti-slip texture, and the partition door is provided with a lock between it and the box frame.

9. A portable sampling device for hazardous chemical sampling according to claim 8, characterized in that: The partition door can be locked from the inside when closed on the side of the box frame.

10. The mobile sampling device for sampling of hazardous chemicals according to claim 5, characterized in that: The surface of the L-handle is provided with anti-slip texture. The cylinder, inner rod, L-handle and spring are provided in two sets, and the two sets of cylinder, inner rod, L-handle and spring are symmetrically distributed on the long pad.

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