A collection device for a spray aerosol

Abstract

The utility model relates to the technical field of collection spray gas, especially a kind of collection device of spray gas, including collector and combustion cup, collector is arranged in combustion cup, and with combustion cup forms test body;Formed accommodating space in collector, injection inlet is opened in collector, one-way valve is provided at injection inlet, the inlet of one-way valve is provided with butt joint, the outlet of one-way valve is communicated with accommodating space, and butt joint is connected with gas source outside. Accommodating space can effectively store spray gas, prevent the backflow of the collected spray gas by the one-way valve at injection inlet, by butt joint and gas source butt joint, ensure that spray gas smoothly enters accommodating space;The utility model is compact in overall structure, under the joint action of one-way valve and butt joint, avoid the sealing property of collector, avoid spray gas to flow out, solve the problems existing in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of aerosol collection technology, and specifically to a device for collecting aerosols. Background Technology

[0002] Combustion heat testing in an oxygen bomb calorimeter is a key method in thermodynamics for determining the heat of combustion of a substance. Its core principle is based on the law of conservation of energy. By accurately measuring the heat released when a sample is completely burned in a high-pressure, oxygen-rich environment, and combining this with instrument heat capacity correction, the constant-volume heat of combustion (Qv) of the sample is finally determined.

[0003] Currently, when the substance to be measured is solid, it is usually placed directly into the oxygen bomb calorimeter. When the substance is liquid, it is placed in a capsule or glass container before being placed into the oxygen bomb calorimeter for testing. However, when the substance to be measured is gaseous, such as aerosols, there is a lack of suitable sample introduction devices on the market. If the sample is directly introduced through the oxygen bomb calorimeter's inlet, leakage of the contents is likely. Therefore, there is an urgent need for a sample introduction device to solve the problem of sample introduction for aerosols. Utility Model Content

[0004] The purpose of this invention is to provide a collection device for aerosol spray in order to solve the problems existing in the prior art.

[0005] In order to solve the problems existing in the prior art, the present invention adopts the following technical solution:

[0006] A collection device for a spray aerosol includes a collector and a combustion cup, wherein the collector is disposed inside the combustion cup and forms a test body with the combustion cup;

[0007] The collector forms a accommodating space, and the collector has an injection port. A one-way valve is installed at the injection port. The inlet of the one-way valve is equipped with a connector, and the outlet of the one-way valve is connected to the accommodating space. The connector is connected to an external air source.

[0008] As an improvement to the technical solution of the aerosol collection device of this utility model, the connector, the one-way valve and the collector are integrally formed.

[0009] As an improvement to the technical solution of the aerosol collection device of this utility model, the connector, the one-way valve and the collector are all made by 3D printing.

[0010] As an improvement to the technical solution of the collection device for the aerosol of this utility model, the collector is provided with a through hole that connects to the outside, and a wire is threaded through the through hole, with the wire extending out of the combustion cup.

[0011] As an improvement to the technical solution of the collection device for the aerosol of this utility model, the outer wall of the collector is in close contact with the inner wall of the combustion cup.

[0012] As an improvement to the technical solution of the aerosol collection device of this utility model, the one-way valve is a constant pressure one-way valve, and when the connector is pressed, the gas from the gas source enters the accommodating space.

[0013] As an improvement to the technical solution of the aerosol collection device of this utility model, the connecting joint is a plastic adapter pipe.

[0014] As an improvement to the technical solution of the aerosol collection device of this utility model, the connecting joint includes an extension along its length.

[0015] The beneficial effects of this utility model are:

[0016] This invention provides a sample introduction device for measuring gaseous substances (such as aerosols) while ensuring its airtightness. As a carrier for the contents of the aerosol, the collector and combustion cup form a test body, which is placed inside an oxygen bomb calorimeter for combustion heat testing. The containment space effectively stores the aerosol, and a one-way valve at the injection port prevents backflow of the collected aerosol. A connector connects to the gas source, ensuring smooth entry of the aerosol into the containment space. The overall structure of this invention is compact, and the combined action of the one-way valve and connector avoids leaks from the collector and aerosol, solving the problems existing in the prior art. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a BB cross-sectional view of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1-Collector; 2-Combustion cup; 3-Containing space; 4-Injection port; 5-One-way valve; 6-Connecting connector; 7-Through hole. Detailed Implementation

[0020] To make the invention objective, technical solution and beneficial effects of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0021] like Figure 1 and Figure 2A collection device for a spray aerosol includes a collector 1 and a combustion cup 2, wherein the collector 1 is disposed inside the combustion cup 2 and forms a test body with the combustion cup 2;

[0022] The collector 1 forms a accommodating space 3. The collector 1 has an injection port 4. A one-way valve 5 is installed at the injection port 4. A connector 6 is installed at the inlet of the one-way valve 5. The outlet of the one-way valve 5 is connected to the accommodating space 3, and the connector 6 is connected to an external air source.

[0023] This invention provides a sample introduction device for measuring substances that are gases (such as aerosols), and ensures its airtightness. As a carrier for the contents of the aerosol, the collector 1 and the combustion cup 2 form a test body, which is then placed inside an oxygen bomb calorimeter for combustion heat testing.

[0024] The accommodating space 3 can effectively store the aerosol, and the one-way valve 5 at the injection port 4 prevents the collected aerosol from flowing back. The connector 6 connects to the gas source to ensure that the aerosol enters the accommodating space 3 smoothly. The overall structure of this utility model is compact. With the combined action of the one-way valve 5 and the connector 6, the sealing of the collector 1 is guaranteed, and the aerosol is prevented from flowing out, thus solving the problems existing in the prior art.

[0025] In some embodiments of this utility model, the outer wall of the collector 1 is in close contact with the inner wall of the combustion cup 2, which can make the two in close contact, enhance structural stability, and prevent the collector 1 from shaking or shifting during use. At the same time, this close contact can reduce the gap between the two, which is conducive to more efficient heat transfer between the combustion cup 2 and the collector 1, improves heat utilization efficiency, and can also prevent external impurities from entering the gap and affecting use to a certain extent, thus ensuring the overall reliability of the device.

[0026] In some embodiments of this utility model, the connector 6, the one-way valve 5, and the collector 1 are integrally formed, which can reduce the connection gaps between components, improve the overall sealing performance, reduce the risk of leakage, and at the same time simplify the assembly process and improve production efficiency.

[0027] Furthermore, the connector 6, check valve 5, and collector 1 are all made by 3D printing, which not only facilitates the realization of complex one-piece molding, but also allows for flexible adjustment of design details, shortens the R&D and production cycle, and ensures the dimensional accuracy and structural consistency of each component, thereby enhancing the overall adaptability and stability.

[0028] In some embodiments of this utility model, the collector 1 has a through hole 7 that communicates with the outside, and a wire is threaded through the through hole 7, with the wire extending out of the combustion cup 2.

[0029] In detail, the through hole 7 on the collector 1 allows the wire to pass through and extend out of the combustion cup 2. When the wire is threaded through the through hole, it facilitates ignition during the test, allowing the collector 1 to be ignited in an oxygen-rich environment and burn completely.

[0030] Furthermore, during testing, the combustion cup is fixed to a conductive support, and the wire can be passed through the through-hole before being fixed to the conductive support. This ensures that the collector 1 placed in the combustion cup 2 and the wire are in contact and fixed in position. The preferred wire is a resistance wire to facilitate its conductive ignition function. This design allows for easy connection of the wire to external structures without affecting the normal operation of the collector 1 within the combustion cup 2, while also allowing the wire to effectively perform its ignition function.

[0031] As the first embodiment of this utility model, the one-way valve 5 is a constant pressure one-way valve 5. The structure of the constant pressure one-way valve 5 is as in conventional technology, and will not be described in detail here; only the main components will be described. The constant pressure one-way valve 5 mainly includes a valve body, a valve core, and a spring. The valve body is the main part of the one-way valve 5, providing a channel for fluid flow; the valve core is the key component for controlling fluid flow, and it can move within the valve body to open or close the fluid channel; the spring is used to provide the force required for the valve core to reset, ensuring that the valve core can be tightly pressed against the valve seat when no external force is applied, preventing fluid backflow.

[0032] In a second embodiment of this invention, a spray agent is injected into the accommodating space 3 via the connector 6. When the flow rate of the gas source is sufficiently large, the one-way valve 5 is opened. After a certain period of injection, the injection stops, and the one-way valve 5 closes. That is, when the inlet pressure exceeds a set threshold, the valve opens, allowing fluid to pass through; after the pressure drops, the valve automatically closes, forming a one-way flow channel. This characteristic effectively maintains the system pressure balance and prevents backflow of the medium.

[0033] In some embodiments of this utility model, the connector 6 is a plastic adapter pipe. The plastic material has good corrosion resistance and is also easy to connect to the gas source.

[0034] Furthermore, along the length direction of the connector 6, the connector 6 includes an extension portion. Under the action of the extension portion, the length of the connector 6 is increased, thus achieving the effect of having an extended nozzle. It can be directly connected to a commercially available spray can, using the spray can as an air source to inject spray aerosol into the containing space 3, so as to achieve the collection effect of spray aerosol.

[0035] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. A device for collecting aerosol spray, characterized in that, It includes a collector and a combustion cup, the collector being disposed inside the combustion cup and forming a test body with the combustion cup; The collector forms a accommodating space, and the collector has an injection port. A one-way valve is installed at the injection port. The inlet of the one-way valve is equipped with a connector, and the outlet of the one-way valve is connected to the accommodating space. The connector is connected to an external air source.

2. The aerosol collection device according to claim 1, characterized in that, The connector, the one-way valve, and the collector are integrally formed.

3. The aerosol collection device according to claim 1 or 2, characterized in that, The connector, the one-way valve, and the collector are all 3D printed.

4. The aerosol collection device according to claim 1, characterized in that, The collector has a through hole that connects to the outside, and a thread is threaded through the through hole, extending out of the combustion cup.

5. The aerosol collection device according to claim 1, characterized in that, The outer wall of the collector is in close contact with the inner wall of the combustion cup.

6. The aerosol collection device according to claim 1, characterized in that, The one-way valve is a constant pressure one-way valve. When the connector is pressed, the gas from the gas source enters the accommodating space.

7. The aerosol collection device according to claim 1, characterized in that, The connector is a plastic adapter pipe.

8. The aerosol collection device according to claim 1 or 7, characterized in that, Along the length direction of the connector, the connector includes an extension.

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