An odor sample preparation device

Abstract

This utility model discloses an odor sample preparation device, including an odor source storage chamber and bases disposed at the four corners of the lower side of the odor source storage chamber. The odor source storage chamber has a storage space inside, and an anti-volatility sealing cover is provided on the rear exterior of the storage space. A temperature control module is disposed inside the upper rear left side of the odor source storage chamber, a suction pump is disposed inside the left side of the odor source storage chamber, and a controller is disposed on the upper right front side of the odor source storage chamber. This device supports the rapid replacement of different types of adsorption materials (such as activated carbon and molecular sieves) to meet the directional enrichment needs of diverse odor samples (such as explosives, plant fragments, food, etc.), avoiding the limitations of a single material. The temperature control module is electrically connected to the external heating structure and can flexibly adjust the heating mode according to the odor source form (solid or liquid), improving the volatile efficiency of odor molecules while supporting standardized and streamlined operation.

Description

Technical Field

[0001] This utility model belongs to the technical field of odor sample preparation device, and specifically relates to an odor sample preparation device. Background Technology

[0002] In the field of odor research and analysis, existing technologies for odor sample preparation devices have been developed driven by multiple needs. On the one hand, industries such as food and fragrances need to analyze odor components to optimize product quality. On the other hand, fields such as environmental monitoring and forensic analysis also require such devices to detect odors or specific odor substances.

[0003] Traditional equipment uses static adsorption (such as single-pass gas extraction or natural diffusion), which results in fewer contacts between odor molecules and the adsorbent material, leading to low enrichment efficiency. In particular, it requires long-term processing for low-volatility substances (such as solid explosive residues), making it difficult to meet the needs of rapid detection. Utility Model Content

[0004] The purpose of this invention is to provide an odor sample preparation device to solve the problems in the background art where traditional equipment uses static adsorption (such as single-time air extraction or natural diffusion), resulting in fewer contacts between odor molecules and adsorbent materials, low enrichment efficiency, and especially for low-volatile substances (such as solid explosive residues), which require long-term processing and are difficult to meet the needs of rapid detection.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an odor sample preparation device, comprising an odor source storage chamber and a base disposed at the four corners of the lower side of the odor source storage chamber;

[0006] The odor source storage compartment has a storage space inside, and the rear exterior of the storage space is provided with a volatile-proof sealing cover.

[0007] A temperature control module is installed inside the upper rear left side of the odor source storage chamber, and a suction pump is installed inside the left side of the odor source storage chamber.

[0008] A controller is provided on the upper right front side of the odor source storage chamber, and an adsorption tank is provided inside the front left side of the odor source storage chamber.

[0009] The odor source storage chamber, the adsorption tank, and the suction pump are each connected by a connecting pipe, and each connecting pipe is equipped with a valve body.

[0010] Preferably, the odor source storage chamber adopts an external heating structure, and the heating structure is electrically connected to the temperature control module.

[0011] Preferably, the adsorption canister has a detachable structure and is filled with material for odor adsorption.

[0012] Preferably, the connecting pipe is a polytetrafluoroethylene plastic pipe, used to connect the odor source storage chamber, the adsorption tank and the suction pump.

[0013] Preferably, the anti-volatile sealing cap is a sealed structure that matches and connects to the rear opening of the odor source storage compartment.

[0014] Preferably, the suction pump, multiple valve bodies, and connecting pipes form a closed-loop gas path within the odor source storage chamber.

[0015] Compared with the prior art, the present invention provides an odor sample preparation device, which has the following features:

[0016] Beneficial effects:

[0017] 1. This device supports the rapid replacement of different types of adsorption materials (such as activated carbon and molecular sieves) to meet the targeted enrichment needs of diverse odor samples (such as explosives, plant fragments, food, etc.) and avoid the limitations of a single material.

[0018] The temperature control module is electrically connected to the external heating structure, and can flexibly adjust the heating mode according to the form of the odor source (solid or liquid), improving the volatile efficiency of odor molecules while supporting standardized and streamlined operation.

[0019] 2. This device accelerates the thermal motion of odor source molecules through external heating, making them more volatile into a gaseous state. Compared with the traditional room temperature environment, the concentration of odor molecules released per unit time can be increased several times, shortening the sample preparation time.

[0020] In addition, the temperature control module supports stable temperature control to prevent high temperatures from causing denaturation or decomposition of odor molecules, thus ensuring the authenticity and validity of the sample components.

[0021] 3. The suction pump drives the gas to circulate in the polytetrafluoroethylene pipeline, so that the odor molecules pass through the adsorption tank multiple times and achieve "dynamic accumulation" through physical or chemical adsorption. Compared with the traditional single adsorption method, the enrichment efficiency is increased several times, and high-concentration samples with lower detection limits can be obtained. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the device from the front view in this utility model.

[0023] Figure 2 This is a schematic diagram of the device from the rear side in this utility model.

[0024] Figure 3 This is a schematic diagram of the closed air passage system in this utility model.

[0025] In the diagram: 1. Odor source storage chamber; 2. Adsorption tank; 3. Controller; 4. Connecting pipe; 5. Valve body; 6. Base; 7. Suction pump; 8. Temperature control module; 9. Anti-volatile sealing cover. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] This utility model provides, for example Figure 1-3 An odor sample preparation device is shown, including an odor source storage chamber 1 and a base 6 disposed at the four lower corners of the odor source storage chamber 1;

[0028] The odor source storage compartment 1 has a storage space inside, and the rear exterior of the storage space is equipped with a non-volatile sealing cover 9;

[0029] A temperature control module 8 is installed inside the upper rear left side of the odor source storage chamber 1, and a suction pump 7 is installed inside the left side of the odor source storage chamber 1.

[0030] A controller 3 is installed on the upper right side of the front side of the odor source storage chamber 1, and an adsorption tank 2 is installed inside the front left side of the odor source storage chamber 1.

[0031] The odor source storage chamber 1, the adsorption tank 2, and the suction pump 7 are respectively connected by connecting pipes 4, and valve bodies 5 are respectively installed at the connection points of the connecting pipes 4.

[0032] Optionally, the temperature control module 8 can control the external heating structure via electrical connection, which can precisely adjust the temperature and accelerate the volatilization efficiency of odor sources (such as solid explosive fragments and liquid food samples).

[0033] The odor source storage chamber 1 is designed as a sealed cavity, which, together with the anti-volatile sealing cover 9 on the rear, ensures that odor molecules do not leak out during the heating process, while preventing external impurities from entering.

[0034] like Figure 1-2As shown, the odor source storage chamber 1 adopts an external heating structure, which is electrically connected to the temperature control module 8. The adsorption tank 2 is a detachable structure, and is filled with materials for odor adsorption. The connecting pipe 4 is a polytetrafluoroethylene plastic pipe used to connect the odor source storage chamber 1, the adsorption tank 2 and the suction pump 7. The anti-volatile sealing cover 9 is a sealed structure that matches and connects to the rear opening of the storage space of the odor source storage chamber 1. The suction pump 7, multiple valve bodies 5 and the connecting pipe 4 form a closed-loop gas path in the odor source storage chamber 1.

[0035] Preferably, the adsorption tank 2 is an independent and detachable component, which allows for quick replacement of the adsorption material (such as activated carbon, molecular sieves, etc.) inside, and is suitable for different types of odor samples (such as volatile organic compounds, specific chemical substances).

[0036] Furthermore, the tank and the gas system are connected through a standardized interface to ensure that the gas system's sealing performance is not affected after disassembly and reassembly.

[0037] Connecting tube 4 is corrosion-resistant and chemically inert, preventing it from reacting with odor molecules and causing sample contamination.

[0038] The suction pump 7 controls the airflow direction through the valve body 5, forming a closed-loop air path between the odor source storage chamber 1 and the adsorption tank 2, ensuring that odor molecules are adsorbed and enriched multiple times during the circulation process.

[0039] In this embodiment, when loading the odor source, the user first opens the anti-volatile sealing cover 9, puts a small amount of solid / liquid odor source such as explosives, plant fragments, food, etc. into the storage space of the odor source storage chamber 1, and closes the sealing cover to form a sealed environment.

[0040] When loading the adsorption source, the adsorption tank 2 can be removed from the odor source storage chamber 1 and filled with materials for odor adsorption such as activated carbon and molecular sieves. After completion, the adsorption tank 2 can be reinstalled inside the left front side of the odor source storage chamber 1.

[0041] Subsequently, the heating parameters of the temperature control module 8, the external heating temperature, can be set through the controller 3, and the suction pump 7 can be started.

[0042] The suction pump 7 drives the gas to flow in a closed circulation gas path consisting of the connecting pipe 4 and the valve body 5. The gas carries odor molecules from the odor source storage chamber 1 into the adsorption tank 2. After being enriched by the adsorption material, the gas returns to the odor source storage chamber 1 to continue the circulation.

[0043] After enrichment is complete, stop the suction pump 7, disassemble the adsorption tank 2, and obtain high-concentration odor samples through desorption or other methods, or directly use the adsorption material for subsequent analysis.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An odor sample preparation device, comprising an odor source storage chamber (1) and bases (6) disposed at the four corners of the lower side of the odor source storage chamber (1); Its features are: The odor source storage compartment (1) has a storage space inside, and a non-volatile sealing cover (9) is provided on the rear exterior of the storage space; A temperature control module (8) is installed inside the upper rear left side of the odor source storage chamber (1), and a suction pump (7) is installed inside the left side of the odor source storage chamber (1). A controller (3) is provided on the upper right side of the front side of the odor source storage chamber (1), and an adsorption tank (2) is provided inside the left front side of the odor source storage chamber (1). The odor source storage chamber (1), the adsorption tank (2), and the suction pump (7) are respectively connected by connecting pipes (4), and valve bodies (5) are respectively provided at the connection points of the connecting pipes (4).

2. The odor sample preparation device according to claim 1, characterized in that: The odor source storage compartment (1) adopts an external heating structure, and the heating structure is electrically connected to the temperature control module (8).

3. The odor sample preparation device according to claim 2, characterized in that: The adsorption tank (2) is a detachable structure and is filled with materials for odor adsorption.

4. The odor sample preparation device according to claim 3, characterized in that: The connecting pipe (4) is a polytetrafluoroethylene plastic pipe used to connect the odor source storage chamber (1), the adsorption tank (2) and the suction pump (7).

5. The odor sample preparation device according to claim 4, characterized in that: The anti-volatile sealing cap (9) is a sealed structure and is matched and connected to the rear opening of the storage space of the odor source storage chamber (1).

6. The odor sample preparation device according to claim 1, characterized in that: The suction pump (7), multiple valve bodies (5) and connecting pipe (4) form a closed-loop air path in the odor source storage chamber (1).

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