CN111855133A - A low-speed wind tunnel aerosol generating device for tobacco - Google Patents

Abstract

A special low-speed wind tunnel aerosol generating device of tobacco which characterized in that: the device comprises a cigarette clamping mechanism, a pump body and a low-speed wind tunnel which are sequentially connected through a connecting pipe, wherein a sealed cigarette inserting hole is formed in the cigarette clamping mechanism. When the invention is used, after the cigarette is ignited by the igniter, the pump body continuously conveys aerosol generated by burning the cigarette into the low-speed wind tunnel to finish the generation and the conveying of the aerosol. The aerosol generating device simplifies the problems of complex operation and laboratory environment pollution caused by sidestream smoke generated during smoke combustion in the existing device, and can effectively improve the utilization rate of the burning cigarettes.

Description

A low-speed wind tunnel aerosol generating device for tobacco

technical field

The invention relates to the field of measurement and verification of anemometers for tobacco-specific smoking machines, in particular to a tobacco-specific low-speed wind tunnel aerosol generating device.

Background technique

The tobacco industry uses the laser Doppler velocimeter to perform metrological verification on the anemometers of tobacco-specific smoking machines. The measurement principle of the laser Doppler velocimetry device is that when the laser irradiates the moving fluid, the laser light is scattered by the particles that follow the movement of the fluid, the frequency of the scattered light changes, and the photoelectric device passes the received frequency difference changed by the laser through a certain amount. The algorithm is converted into particle velocity to complete the velocity measurement. When carrying out the metrological verification of the anemometer for tobacco smoking machines, smoke particles (aerosols) are usually injected into the wind tunnel. At present, the laboratory uses large diameter glass needles to add flue gas particles into the wind tunnel. In the process of smoking cigarettes, the cigarette holder has no fixing measures. The experimenter needs to pull the syringe while fixing the cigarette holder to complete the smoking of smoke. The flue gas in the needle tube can be driven into the wind tunnel only after the cigarettes are removed. The operation is extremely cumbersome and the degree of automation is low, which is easy to cause safety accidents, and the side-flow flue gas generated during the combustion of the cigarettes will cause harm to the laboratory environment. Pollution.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a tobacco-specific low-speed wind tunnel aerosol generating device suitable for laser speed measurement, which can replace manual operation and does not generate sidestream smoke based on the defects of the above-mentioned prior art.

The purpose of this invention is to realize through the following technical solutions:

A low-speed wind tunnel aerosol generating device for tobacco, comprising a cigarette holder mechanism, a pump body, and a low-speed wind tunnel connected in sequence through a connecting pipe, the cigarette holder mechanism is provided with a sealed cigarette holder, and the cigarette holder After the cigarette is ignited, the pump body continuously transports the aerosol generated by the burning cigarette into the low-speed wind tunnel to complete the generation and transportation of the aerosol.

In the present invention, a detachable igniter is installed on the cigarette holder, and the igniter can be a resistance igniter, an electric spark igniter, or the like.

The cigarette holding mechanism is a right-angle folded plate structure, the cigarette socket and the igniter are respectively installed on two sides of the right-angle folded plate, and the connection between the igniter and the folded plate can be fixed or sliding.

The diameter of the sealed cigarette socket set on the cigarette holding mechanism is adjustable to adapt to cigarettes of different specifications.

The flow velocity range of the low-speed wind tunnel is 0.08-0.3m/s, and the low-speed wind tunnel is provided with an interface connected with a connecting pipe.

The sealed cigarette socket is a one-layer or multi-layer rubber ring type socket to prevent air leakage when smoking cigarettes.

The pump body is a micro-diaphragm pump, which directly and continuously transports the aerosol generated by the burned cigarettes on the cigarette holder to the low-speed wind tunnel, and provides a stable and uniform flow field for the low-speed wind tunnel.

The beneficial effects of the present invention are as follows: an aerosol generator for a low-flow wind tunnel is provided, the cigarettes fixed on the cigarette-holding device are ignited by the igniter, and the aerosol generated by the burned cigarettes is ignited by the pump body. It is continuously transported to the low-speed wind tunnel, which simplifies manual operation and improves work efficiency. It will not produce side flow flue gas to pollute the laboratory environment, and improve the utilization rate of combustion cigarettes.

Description of drawings

Fig. 1 is the structural representation of the present invention,

Figure 2 is a left side view of Figure 1,

In the figure: 1. cigarette; 2. cigarette clamping mechanism; 3. connecting pipe; 4. pump body; 5. low-speed wind tunnel; 6. jack; 7. igniter.

Detailed ways

The present invention is further described below in conjunction with accompanying drawing:

As shown in Figure 1: a low-speed wind tunnel aerosol generating device for tobacco, comprising a cigarette clamping mechanism 2, a pump body 4, and a low-speed wind tunnel 5 connected by a connecting pipe 3 in turn, the cigarette clamping mechanism 2 There is a sealed cigarette socket 6 on the top. After the cigarette 1 is ignited, the pump body continuously transports the aerosol generated by the burning cigarette into the low-speed wind tunnel to complete the generation and transportation of the aerosol.

In the present invention, a removable igniter 7 is installed on the cigarette holder 2, and the igniter 7 may be a resistance igniter, an electric spark igniter, or the like.

The cigarette holding mechanism is a right-angle folded plate structure, the cigarette socket and the igniter are respectively installed on two sides of the right-angle folded plate, and the connection between the igniter and the folded plate can be fixed or sliding.

The 6 diameters of the sealed cigarette sockets arranged on the cigarette holding mechanism are adjustable to adapt to cigarettes of different specifications.

More specifically, the present invention provides a low-speed wind tunnel aerosol generating device for tobacco, which continuously transports the aerosol generated by igniting the experimental cigarette 1 into the wind tunnel 5, without generating side flow smoke. above, to maximize the utilization of the experimental cigarette 1. The igniter 7 is located on the cigarette clamping mechanism 2, and the pump body 4 is located between the fixed cigarette clamping mechanism 2 and the wind tunnel 5, and the wind tunnel 5 is used to cooperate with the laboratory Doppler. The anemometer realizes the low velocity wind tunnel of 0.08-0.3m/s for velocity measurement, and is provided with an interface connected with the connecting pipe 3.

The connecting pipe 3 is sequentially connected to the cigarette holder 2, the pump body 4 and the wind tunnel 5 to form an aerosol passage.

The pump body 4 can continuously transport the aerosol generated by the burned cigarettes 1 located on the clamping mechanism to the wind tunnel 5 without generating side flow smoke. The pump body 4 is preferably a miniature diaphragm pump.

The invention continuously transports the aerosol generated by the burning cigarettes into the low flow rate wind tunnel through the pump body, so as to solve the problems of complicated operation of the existing means, pollution of the laboratory environment and pollution of the instruments by the side-flow flue gas, etc. All the aerosol particles generated when the cigarette is burned are transported to the low-speed wind tunnel to realize the wind speed measurement.

Claims (8)

1. a special low-speed wind tunnel aerosol generating device for tobacco, it is characterized in that: comprise the cigarette holder mechanism, pump body, low-speed wind tunnel that are connected successively by connecting pipe, described cigarette holder mechanism is provided with sealed type Cigarette jack; after the cigarette is ignited, the pump body continuously transports the aerosol generated by the combustion of the cigarette into the low-speed wind tunnel to complete the generation and transportation of the aerosol. 2 . The aerosol generating device according to claim 1 , wherein a detachable igniter is installed on the cigarette holder. 3 . 3. The aerosol generating device according to claim 1 or 2, wherein the cigarette holder is a right-angle folded plate structure, and the cigarette socket and the igniter are respectively installed on two sides of the right-angle folded plate. and the connection between the igniter and the folding plate can be fixed or sliding. 4. The aerosol generating device according to claim 2 or 3, wherein the igniter is a resistance igniter or an electric spark igniter. 5 . The aerosol generating device according to claim 1 , wherein the diameter of the sealed cigarette socket provided on the cigarette holding mechanism is adjustable to adapt to cigarettes of different specifications. 6 . 6 . The aerosol generating device according to claim 1 , wherein the flow velocity range of the low-speed wind tunnel is 0.08-0.3 m/s. 7 . 7 . The aerosol generating device according to claim 1 , wherein the sealed cigarette socket is a one-layer or multi-layer rubber ring type socket to prevent air leakage during smoking. 8 . 8 . The aerosol generating device according to claim 1 , wherein the pump body is a miniature diaphragm pump. 9 .

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