Micro-plastic cracking adsorption device

Abstract

The utility model relates to the technical field of underwater micro-plastic detection devices, in particular to a micro-plastic cracking adsorption device, which is characterized in that a digestion tube is placed in a heating furnace, the rear end of the digestion tube is connected with a nitrogen silicone tube through a pagoda joint, a digestion plug is inserted into the front end of the digestion tube, and the front section of the digestion plug is connected with a thermal desorption tube through a thermal desorption tube joint; and the cracked small-molecular organic matters can be directly adsorbed by the thermal desorption tube. The device disclosed by the utility model has the beneficial effects that the monitoring level of micro-plastics can be improved, the operation steps are simplified, and cracked small-molecular organic matters can be directly adsorbed by the thermal desorption tube, so that convenience is provided for further analysis and detection.

Description

Technical Field

[0001] The utility model relates to the technical field of microplastic detection devices in water, in particular to a microplastic cracking and adsorption device. Background Art

[0002] Currently, microplastic waste pollution has become one of the hottest issues in marine ecology and environmental research. Microplastics are generally defined as plastics with a diameter of less than 5 mm. They can migrate long distances under the influence of external forces such as wind, rivers and ocean currents, thereby causing pollution. The dangerous impact of microplastics on ecosystems increases as their particle size decreases. Therefore, it is necessary to detect and test microplastics in the environment to determine the pollution status of the environment there.

[0003] The existing procedures for extracting microplastics are complicated, require high equipment, and are costly, which greatly limits their application.

[0004] To this end, the present application designs a microplastic cracking and adsorption device to solve the above problems. Utility Model Content

[0005] In order to make up for the deficiencies in the prior art, the utility model provides a microplastic cracking and adsorption device.

[0006] A microplastic cracking device, comprising a digestion tube, characterized in that:

[0007] The digestion tube is placed in a heating furnace, the rear end of the digestion tube is connected to a nitrogen silicone tube via a pagoda joint, a digestion plug is inserted into the front end of the digestion tube, and the front end of the digestion plug is connected to a thermal desorption tube via a thermal desorption tube joint, and the cracked small molecular organic matter can be directly adsorbed by the thermal desorption tube.

[0008] Furthermore, in order to better implement the utility model, a bell-shaped plug interface is provided at the front end of the digestion tube, and the plug interface is tightly plugged into the clamping head at the front end of the digestion plug.

[0009] Furthermore, in order to better realize the utility model, the portion of the digestion plug extending into the digestion tube at the rear end thereof is provided with a long crucible, and the filtered filter membrane is placed in the crucible.

[0010] Furthermore, in order to better implement the utility model, the front end of the clamping head of the digestion plug is protruded with a threaded head, and the threaded head is threadedly connected to the thermal desorption tube joint.

[0011] Furthermore, in order to better realize the utility model, the thermal desorption pipe joint is made of polytetrafluoroethylene material, and a hole is opened at the front end. The inner diameter of the hole is closely matched with the outer diameter of the thermal desorption tube. A fluororubber ring is installed in the hole of the thermal desorption pipe joint, and a circular groove is opened on the thermal desorption tube to fit and fix the fluororubber ring.

[0012] The beneficial effects of the utility model are:

[0013] The device of the utility model can improve the monitoring level of microplastics, simplify the operation steps, and enable the cracked small molecular organic matter to be directly adsorbed by the thermal desorption tube, providing convenience for further analysis and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 This is one of the three-dimensional structure explosion diagrams of the utility model;

[0016] Figure 3 This is the second exploded view of the three-dimensional structure of the utility model.

[0017] In the figure,

[0018] 1. Digestion tube, 2. Digestion plug, 3. Thermal desorption tube joint, 4. Thermal desorption tube, 101, plug interface, 201, clamp head, 202, crucible, 203, threaded head. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] Figure 1-Figure 3This is a specific embodiment of the utility model, which is a microplastic cracking and adsorption device. The digestion tube 1 is placed in a heating furnace, and the rear end of the digestion tube 1 is connected to a nitrogen silicone tube through a pagoda joint. A digestion plug 2 is inserted into the front end of the digestion tube 1. The front section of the digestion plug 2 is connected to a thermal desorption tube 4 through a thermal desorption tube joint 3. The cracked small molecular organic matter can be directly adsorbed by the thermal desorption tube 4. The front end of the digestion tube 1 is provided with a trumpet-shaped plug interface 101, and the plug interface 101 is tightly plugged into the front end of the digestion plug 2. The part of the digestion plug 2 that extends into the digestion tube 1 at the rear end is provided with a long crucible 202, and the filtered filter membrane is placed in the crucible 202. The front end of the head 201 of the digestion plug 2 is convex with a threaded head 203, and the threaded head 203 is threadedly connected to the thermal desorption tube joint 3. The thermal desorption pipe joint 3 is made of polytetrafluoroethylene, and has a hole at its front end. The inner diameter of the hole is closely matched with the outer diameter of the thermal desorption tube 4. A fluoro rubber ring is installed in the hole of the thermal desorption pipe joint 3, and a circular groove is opened on the thermal desorption tube 4 to fit and fix the fluoro rubber ring.

[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A microplastic pyrolysis and adsorption device, comprising a digestion tube (1), characterized in that: The digestion tube (1) is placed in a heating furnace, the rear end of the digestion tube (1) is connected to a nitrogen silicone tube via a pagoda joint, a digestion plug (2) is inserted into the front end of the digestion tube (1), and the front end of the digestion plug (2) is connected to a thermal desorption tube (4) via a thermal desorption tube joint (3), so that the cracked small molecular organic matter can be directly adsorbed by the thermal desorption tube (4).

2. The microplastic cracking and adsorption device according to claim 1, characterized in that: The front end of the digestion tube (1) is provided with a trumpet-shaped plug interface (101), and the plug interface (101) is tightly plugged into the clamping head (201) at the front end of the digestion plug (2).

3. The microplastic pyrolysis and adsorption device according to claim 1, characterized in that: The portion of the digestion plug (2) extending from the rear end thereof into the digestion tube (1) is provided with a long crucible (202), and a filter membrane after filtration is placed in the crucible (202).

4. The microplastic pyrolysis and adsorption device according to claim 2, characterized in that: The front end of the clamping head (201) of the digestion plug (2) is protruded with a threaded head (203), and the threaded head (203) is threadedly connected to the thermal desorption pipe joint (3).

5. The microplastic cracking and adsorption device according to claim 4, characterized in that: The thermal desorption pipe joint (3) is made of polytetrafluoroethylene and has a hole at its front end, the inner diameter of the hole being closely matched with the outer diameter of the thermal desorption pipe (4). A fluororubber ring is installed in the hole of the thermal desorption pipe joint (3), and a circular groove is opened on the thermal desorption pipe (4) to fit and fix the fluororubber ring.

Images