Quick heating separation device

Abstract

The utility model discloses a quick-heating separation device which is used for quickly desorbing a mixed sample adsorbed in a cavity and then enabling the mixed sample to flow into an external detector for quick detection through carrier gas flow, and does not need large-scale heating equipment, so that the equipment cost is reduced. The gas carrying end of the metal sleeve is open, and the gas outlet tail end of the metal sleeve is provided with an outflow port; a heating component; and a filler element which is a porous filler element. An inner cavity of the metal sleeve is filled with the filler element, the filler element is arranged in the length direction of the inner cavity of the metal sleeve in a filling mode, at least one set of heating elements are arranged on the outer surface of the metal sleeve, and the wiring ends of the heating elements are externally connected with an external switch. And the heating element conducts heat energy to the filler element through the metal sleeve in a heating state.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption detection, in particular to a rapid thermal separation device. Background Art

[0002] Laboratory gas chromatographs use heat conduction through an air bath in the gas chromatograph furnace to heat up the metal packing column and achieve the purpose of separating mixed samples. In actual testing, this type of detection equipment is expensive and not convenient for rapid testing. Therefore, there is an urgent need for a portable detection device that can quickly separate and detect the mixed gas after obtaining the gas sample to be analyzed. Utility Model Content

[0003] In response to the above problems, the utility model provides a rapid thermal separation device, which quickly desorbs the mixed sample adsorbed in the cavity, and then flows it into an external detector through the carrier gas flow for rapid detection. It does not require large-scale heating equipment, reducing equipment costs.

[0004] A rapid thermal separation device, characterized in that it comprises:

[0005] The metal sleeve has an open gas carrier end and a gas outlet end.

[0006] Heating components;

[0007] and a packing element which is a porous packing element;

[0008] The inner cavity of the metal sleeve is plugged with the filler element, and the filler element is filled and arranged along the length direction of the inner cavity of the metal sleeve. At least one group of heating elements are arranged on the outer surface of the metal sleeve, and the terminal of the heating element is connected to an external switch. When in a heated state, the heating element conducts heat energy to the filler element through the metal sleeve.

[0009] It is further characterized by:

[0010] It also includes a temperature measuring strip, which is arranged on the outer surface of the metal sleeve, and the temperature measuring point of the temperature measuring strip is connected to an external temperature display device through an external wire;

[0011] It also includes an air blocking device, which is provided on the outlet of the gas outlet end of the metal sleeve. The air blocking device only allows gas to flow through, and the air blocking device ensures that the filler does not flow into the downstream detection equipment through the outlet, thereby ensuring the safety and reliability of the detection;

[0012] The heating element is specifically a heating resistance wire coated with a protective layer. The heating resistance wire is arranged in a serpentine heating zone along the outer circumference length direction of the metal sleeve. The positive and negative power supply electrodes of the heating resistance wire are located near the opening of the carrier gas end of the metal sleeve, which ensures sufficient and reliable heating.

[0013] The temperature measuring point of the temperature measuring strip is arranged near the opening of the carrier gas end, and the temperature measuring point is connected to an external temperature display device through an external wire.

[0014] With the above technical solution, the carrier gas end opening of the metal sleeve is connected to the airflow path for detection operations. Because the inner cavity of the metal sleeve is arranged with a porous filler element, the porous filler element integrates the dual functions of adsorption and desorption. Under normal temperature conditions, the porous filler can effectively adsorb the target components in the mixed sample. The outer surface of the metal device is provided with a heating element and a temperature measuring strip. Through the input of electrical energy, the device surface can be quickly heated, and the excellent thermal conductivity of the metal is then utilized to efficiently heat the porous filler element inside. As the porous filler element gradually heats, its adsorption capacity for the sample gradually weakens, thereby triggering the desorption process, releasing the adsorbed target components, and guiding and promoting the effective separation of these released sample components within the metal device. As the carrier gas flows downward, the external valve of the outflow port is opened, allowing the separated gas to enter the downstream detection equipment, where it quickly desorbs the mixed sample adsorbed in the cavity. It then flows into the external detector through the carrier gas flow for rapid detection. The device does not require large-scale heating equipment, reducing equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 3 for Figure 1 AA cross-sectional structure diagram;

[0018] Figure 4 This is a schematic diagram of the arrangement of the heating resistance wire and the temperature measuring strip in the surface unfolded state of the metal sleeve corresponding to the present invention;

[0019] The names corresponding to the serial numbers in the figure are as follows:

[0020] Metal sleeve 10, carrier gas end 11, opening 111, gas outlet end 12, outflow port 121, heating element 20, heating resistance wire 21, positive power supply electrode 211, negative power supply electrode 212, filler element 30, temperature measuring strip 40, temperature measuring point 41, external connection 42, gas resistance device 50. DETAILED DESCRIPTION

[0021] A rapid thermal separation device, see Figures 1-4 , which includes a metal sleeve 10, a heating element 20, and a filler element 30;

[0022] The metal sleeve 10 has a carrier gas end 11 and a gas outlet end 12 at both ends in the longitudinal direction. The opening 111 of the carrier gas end 11 of the metal sleeve 10 is used to collect target components. The gas outlet end 12 of the metal sleeve 10 is provided with a flow outlet 121. The flow outlet 121 is closed by a valve in a non-detection state and is opened during detection.

[0023] The packing element 30 is specifically a porous packing element;

[0024] The inner cavity of the metal sleeve 10 is plugged with a filler element. The filler element is pre-made according to the inner cavity aperture and length of the metal sleeve 10. The completed filler element 30 is directly plugged into the inner cavity of the metal sleeve 10. The filler element 30 is filled and arranged along the length direction of the inner cavity of the metal sleeve 10. At least one group of heating elements 20 are arranged on the outer surface of the metal sleeve 10. The terminal of the heating element 20 is connected to an external switch. The heating element 20 conducts heat energy to the filler element 30 through the metal sleeve 10 in the heating state.

[0025] In specific implementation, it also includes a temperature measuring strip 40, which is arranged on the outer surface of the metal sleeve 10. The temperature measuring point 41 of the temperature measuring strip 40 is connected to an external temperature display device (not shown in the figure, belonging to an existing mature display device) through an external wire 42.

[0026] In a specific implementation, it further includes an air blocking device 50. The air blocking device 50 is provided on the outlet 121 at the gas outlet end of the metal sleeve 10. The air blocking device 50 only allows gas to flow through. The air blocking device 50 ensures that the filler does not flow into the downstream detection equipment through the outlet 121, thereby ensuring the safety and reliability of the detection.

[0027] The heating element 20 is specifically a heating resistance wire 21 coated with a protective layer. The heating resistance wire 21 is arranged in a serpentine heating zone along the outer length direction of the metal sleeve 10. The positive power supply electrode 211 and the negative power supply electrode 212 of the heating resistance wire 21 are arranged near the carrier gas end 11 of the metal sleeve 10 to ensure sufficient and reliable heating.

[0028] The temperature measuring point 41 of the temperature measuring strip 40 is located near the carrier gas end 11 , and the temperature measuring point 41 is connected to an external temperature display device via an external connection 42 .

[0029] Its operating principle is as follows: the carrier gas end of the metal sleeve is open and connected to the airflow path for detection operations. Because the inner cavity of the metal sleeve is arranged with a porous filler element, the porous filler element integrates the dual functions of adsorption and desorption. Under normal temperature conditions, the porous filler can effectively adsorb the target components in the mixed sample. The outer surface of the metal device is provided with a heating element and a temperature measuring strip. Through the input of electrical energy, the device surface can be quickly heated, and the excellent thermal conductivity of the metal is then utilized to efficiently heat the porous filler element inside. As the porous filler element gradually heats up, its adsorption capacity for the sample gradually weakens, thereby triggering the desorption process, releasing the adsorbed target components, and guiding and promoting the effective separation of these released sample components within the metal device. As the carrier gas flows downward, the external valve of the outflow port opens, allowing the separated gas to enter the downstream detection equipment, where it quickly desorbs the mixed sample adsorbed in the cavity. It then flows into the external detector for rapid detection through the carrier gas flow. The device does not require large-scale heating equipment, reducing equipment costs.

[0030] 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 present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rapid thermal separation device, characterized in that: It includes: The metal sleeve has an open gas carrier end and a gas outlet end. Heating components; and a packing element which is a porous packing element; The inner cavity of the metal sleeve is plugged with the filler element, and the filler element is filled and arranged along the length direction of the inner cavity of the metal sleeve. At least one group of heating elements are arranged on the outer surface of the metal sleeve, and the terminal of the heating element is connected to an external switch. When in a heated state, the heating element conducts heat energy to the filler element through the metal sleeve.

2. A rapid thermal separation device according to claim 1, characterized in that: It also includes a temperature measuring strip, which is arranged on the outer surface of the metal sleeve, and a temperature measuring point of the temperature measuring strip is connected to an external temperature display device through an external wire.

3. The rapid thermal separation device according to claim 1, characterized in that: It also includes an air blocking device, which is provided on the outlet of the gas outlet end of the metal sleeve and only allows gas to flow through.

4. The rapid thermal separation device according to claim 1, characterized in that: The heating element is specifically a heating resistance wire covered with a protective layer. The heating resistance wire is arranged in a serpentine heating zone along the outer circumference length direction of the metal sleeve. The positive and negative power supply electrodes of the heating resistance wire are located near the carrier gas end opening of the metal sleeve.

5. The rapid thermal separation device according to claim 2, characterized in that: The temperature measuring point of the temperature measuring strip is arranged near the opening of the carrier gas end, and the temperature measuring point is connected to an external temperature display device through an external wire.

Images