A particle filling based resistance adjusting standard part

Abstract

This invention provides a standard component for adjusting suction resistance based on particle filling, comprising a main body and a plurality of particles. The main body forms a suspension cavity with an air inlet and an air outlet, and also includes a receiving cavity communicating with the suspension cavity. The particles fill the suspension cavity and the receiving cavity. The suction resistance is adjusted by changing the proportion of particles in the suspension cavity and the receiving cavity. This particle-filled suction resistance adjustment standard component offers advantages such as controllable suction resistance and ease of integration into the pneumatic circuit structure of large equipment.

Description

Technical Field

[0001] This utility model relates to the field of standard instrument technology, specifically to a suction resistance adjustment standard component based on particle filling. Background Technology

[0002] Smoke resistance testing is one of the important indicators for testing cigarettes / filters. It determines the quality of cigarettes / filters and is one of the most direct factors affecting people's smoking experience.

[0003] Therefore, draw resistance testing equipment has emerged. Its main function is to test the draw resistance of cigarettes / filters. As a measuring device, draw resistance testing equipment needs to be calibrated regularly. The draw resistance standard rod used for calibration is the main calibration device at present.

[0004] The draw resistance standard rod is made in the shape of a cigarette to facilitate its use with draw resistance testing equipment and meet the needs of various application scenarios.

[0005] However, in some larger pieces of equipment, the standard components used for calibration can actually be integrated into the entire gas circulation structure, making them one of the dedicated calibration components in the equipment, thereby improving calibration frequency and efficiency.

[0006] To solve this problem, those skilled in the art urgently need to develop a standard suction resistance component suitable for large equipment that can be directly connected to the gas path structure. At the same time, to meet the needs of multi-range calibration, its suction resistance value also needs to be adjustable.

[0007] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a particle-filled standard component for adjusting suction resistance in the pneumatic circuit structure of large equipment, which has a controllable suction resistance value and is easy to integrate into the pneumatic circuit structure.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: a standard component for adjusting suction resistance based on particle filling, comprising a standard component body and several particles;

[0010] The standard part body forms a suspension cavity with an air inlet and an air outlet. The standard part body also has a storage cavity that communicates with the suspension cavity. Several of the particles are filled in the suspension cavity and the storage cavity.

[0011] The suction resistance is adjusted by changing the ratio of particles located in the suspension chamber and the collection chamber.

[0012] Based on the above, the suspension cavity in the main body of the standard component is a vertical cylindrical cavity, and isolation nets are respectively provided at the air inlet and air intake.

[0013] Based on the above, the top of the suspension cavity of the standard part body is an air intake port and the bottom is an air inlet port.

[0014] Based on the above, the top and bottom ends of the suspension cavity are tapered.

[0015] Based on the above, the receiving cavity and the suspension cavity are isolated by a valve.

[0016] Based on the above, the receiving cavity is located at the bottom end of the suspension cavity and is coaxially arranged with the suspension cavity.

[0017] Based on the above, a movable push rod is installed in the receiving cavity, which is used to push the particles from the receiving cavity into the suspension cavity.

[0018] Based on the above, the standard part body has a vertical structure, and the diameter of the suspension cavity area of ​​the standard part body is larger than the diameter of the upper and lower ends.

[0019] Based on the above, the air inlet is located on one side of the bottom end of the standard part body and is arranged at an angle.

[0020] Based on the above, the main body of the standard component is made of glass or metal, and the particles are made of metal or glass.

[0021] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:

[0022] By using particulate filler in the suspension chamber, when airflow enters the suspension chamber, it needs to overcome the resistance caused by the accumulation of particulate matter to blow the particles up, thus creating resistance. By adjusting the number of particles in the suspension chamber, the magnitude of the suction resistance is changed, ultimately achieving adjustable suction resistance. This method uses the number of particulate matter to change the suction resistance. Standard parts do not need to be replaced after being connected to large equipment; the suction resistance can be changed simply by adjustment. It is suitable for integrated applications in large equipment and has an interface structure for air inlet and air outlet, which does not pose any obstacles to the design, manufacturing, installation, or modification of the equipment's air circuit. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the static state of the suction resistance adjustment standard component based on particle filling in this utility model when it is not ventilated.

[0024] Figure 2 This is a schematic diagram of the high-resistance standard component for suction resistance adjustment based on particle filling in this utility model.

[0025] Figure 3This is a schematic diagram of the structure of the suction resistance adjustment standard component based on particle filling in this utility model, which adjusts the particle ratio to achieve a low resistance state when the particle density in the cavity is reduced.

[0026] In the diagram: 1. Standard part body; 2. Particles; 3. Suspension chamber; 4. Storage chamber; 5. Air inlet; 6. Intake port; 7. Isolation net; 8. Valve; 9. Movable push rod. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0028] like Figures 1-3 As shown, a standard component for adjusting suction resistance based on particle filling includes a standard component body 1 and several particles 2.

[0029] The standard part body 1 forms a suspension cavity 3 with an air inlet 5 and an air intake 6. The standard part body 1 is also provided with a storage cavity 4 that communicates with the suspension cavity. The storage cavity 4 and the suspension cavity 3 are isolated by a valve 8. Several particles 2 are filled in the suspension cavity 3 and the storage cavity 4.

[0030] The suction resistance is adjusted by changing the ratio of particles 2 in the suspension chamber 3 and the collection chamber 4.

[0031] Specifically, in this embodiment, the standard part body is designed as a vertical structure. The top of the suspension cavity of the standard part body is the air intake 6 and the bottom is the air inlet 5. The suspension cavity is also a vertical columnar cavity. In order to optimize the structural design, the standard part body has a structure that is narrower at the top and bottom and has a slightly larger diameter in the area where the suspension cavity is located. The main purpose is to optimize the structure of the air inlet 5 and the air intake 6 so as to facilitate connection to the external air passage structure.

[0032] Since the particle 2 is much smaller than the air inlet 5 and the air intake 6, isolation nets 7 can be set at the air inlet 5 and the air intake 6 respectively to prevent the particles from escaping.

[0033] The location of the receiving cavity 4 can be varied. In this embodiment, the receiving cavity 4 is located at the bottom end of the suspension cavity 3 and is coaxially arranged with the suspension cavity 3. Under this design, the particles naturally accumulate at the opening of the receiving cavity 4 under their own weight. They can enter the receiving cavity simply by opening the valve 8. For ease of control, in this embodiment, the valve 8 is designed as a solenoid valve. To complement this structure, in this embodiment, the air inlet 5 is located on one side of the bottom end of the standard part body 1 and is arranged at an angle.

[0034] In other embodiments, the receiving cavity may also be located in the lower part of the suspension cavity, generally below the particle accumulation height, so that the particles can enter the receiving cavity.

[0035] In order to adjust the ratio of particles in the receiving cavity and the suspension cavity, in this embodiment, a movable push rod 9 is installed in the receiving cavity 4. The movable push rod 9 is used to push the particles from the receiving cavity 4 into the suspension cavity 3. The movable push rod 9 can be a cylinder or an electric push rod and can be connected to the electronic control system of an external device for easy control.

[0036] In other embodiments, the mechanism for adjusting the particle ratio can also be a jet nozzle, a baffle installed in the collection cavity, or a structure that allows the collection cavity to swing at an angle, etc., to achieve the adjustment of the quantity ratio of particles between the collection cavity and the suspension cavity.

[0037] In terms of material selection, the standard part body 1 is made of glass or metal, and the particles 2 are made of metal or glass. The particles are specially made hollow spheres with a certain weight, which can bring the required resistance. The number and particle size of the particles 2 can be designed according to the actual required suction resistance value. When blown upward from the lower side with a specific airflow velocity, the particles will be evenly suspended in the cylinder.

[0038] Working principle explanation:

[0039] In the initial design of this device, by controlling parameters such as the size of the suspension chamber, the size of the receiving chamber, the particle material and particle size, the corresponding relationship between the number of particles filled and the suction resistance value can be obtained. This relationship is recorded in the program and can be converted into the stroke parameters of the movable push rod during execution.

[0040] By controlling the stroke data of the movable push rod, the required suction resistance value is achieved, and then the suction resistance value required for calibration is generated.

[0041] When in use, this standard part can be connected to a branch gas path from the main gas path for calibration, so as to calibrate the performance of the gas supply path.

[0042] Because its valves and movable push rods can be connected to the electrical control system of external equipment for unified control, this standard part is particularly suitable for installation in large-scale comprehensive test platforms, and is used for high-frequency and flexible calibration tasks of suction resistance performance.

[0043] Of course, standard parts, as components, also have a lifespan and wear issues. After regular use, standard parts need to be removed for performance verification and adjustment, such as replacing with new particles or replenishing particles.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A particle fill based resistance adjustment standard, characterized by: Includes the standard main body and several particles; The standard part body forms a suspension cavity with an air inlet and an air outlet. The standard part body also has a storage cavity that communicates with the suspension cavity. Several of the particles are filled in the suspension cavity and the storage cavity. The suction resistance is adjusted by changing the ratio of particles located in the suspension chamber and the collection chamber.

2. The particle loading based resistance adjusting standard piece of claim 1, wherein: The suspension cavity in the main body of the standard component is a vertical cylindrical cavity, and isolation nets are respectively installed at the air inlet and air outlet.

3. The particle loading based resistance adjusting standard piece according to claim 2, characterized in that: The top of the suspension cavity of the standard component body is an air intake port and the bottom is an air inlet port.

4. The particle loading based resistance adjusting standard piece according to claim 2 or 3, characterized in that: The top and bottom ends of the suspension cavity are tapered.

5. The particle loading based resistance adjusting standard piece according to claim 2 or 3, characterized in that: The receiving cavity and the suspension cavity are isolated by a valve.

6. The particle loading based resistance adjusting standard piece of claim 5, wherein: The storage cavity is located at the bottom of the suspension cavity and is coaxially arranged with the suspension cavity.

7. The particle loading based resistance adjusting standard piece according to claim 1 or 6, characterized in that: A movable push rod is installed in the receiving cavity, which is used to push the particles from the receiving cavity into the suspension cavity.

8. The particle loading based resistance adjusting standard piece of claim 1, wherein: The standard part body has a vertical structure, and the diameter of the suspension cavity area of ​​the standard part body is larger than the diameter of the upper and lower ends.

9. The particle loading based resistance adjusting standard piece of claim 3, wherein: The air inlet is located on one side of the bottom of the standard part body and is set at an angle.

10. The particle loading based resistance adjusting standard piece of claim 1, wherein: The standard part is made of glass or metal, the particles are made of metal or glass, and the particles are hollow spheres.

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