阅读说明：本技术 石蜡颗粒发生器 (Paraffin particle generator ) 是由 杨晓军 刘智刚 于天浩 胡英琦 常嘉文 靳晓宇 陈羽 刘文博 柳笑寒 周昊旻 于 2020-05-19 设计创作，主要内容包括：一种石蜡颗粒发生器。其包括压缩机储气罐、过滤器、防爆耐热管、换热器、下部气体喷头、硬质玻璃罐、石蜡喷嘴、上部气体喷头、耐热回流管、齿轮泵、进液管和石蜡加热罐；本发明提供的石蜡颗粒发生器具有如下有益效果：可持续地产生雾化的石蜡颗粒,且结构简单,造价低廉,使用方便。另外,实验人员可通过硬质玻璃罐和石蜡加热罐直观地观察到石蜡颗粒的熔融和凝固过程,非常方便、实用。(A paraffin particle generator. The device comprises a compressor gas storage tank, a filter, an explosion-proof heat-resistant pipe, a heat exchanger, a lower gas spray head, a hard glass tank, a paraffin nozzle, an upper gas spray head, a heat-resistant backflow pipe, a gear pump, a liquid inlet pipe and a paraffin heating tank; the paraffin particle generator provided by the invention has the following beneficial effects: can continuously produce atomized paraffin particles, and has simple structure, low manufacturing cost and convenient use. In addition, the experimenter can visually observe the melting and solidification processes of the paraffin particles through the hard glass tank and the paraffin heating tank, and the method is very convenient and practical.)

1. A paraffin particle generator, characterized in that: the paraffin particle generator comprises a compressor air storage tank (1), a filter (4), an explosion-proof heat-resistant pipe (5), a heat exchanger (6), a lower gas spray head (12), a hard glass tank (16), a paraffin nozzle (17), an upper gas spray head (20), a heat-resistant return pipe (21), a gear pump (23), a liquid inlet pipe (25) and a paraffin heating tank (27); the paraffin heating tank (27) is used for containing and heating the solid paraffin (11) and keeping the paraffin (11) at a certain temperature; one end of the liquid inlet pipe (25) is immersed in the paraffin (11) in the paraffin heating tank (27), the other end of the liquid inlet pipe is positioned above the hard glass tank (16) and is connected with one end of the heat-resistant return pipe (21), and the other end of the heat-resistant return pipe (21) is positioned in the paraffin heating tank (27); the paraffin nozzle (17) is arranged at the top of the hard glass tank (16) and is communicated with the liquid inlet pipe (25); the gear pump (23) is connected to the liquid inlet pipe (25); one end of the explosion-proof heat-resistant pipe (5) is connected with an air outlet of the compressor air storage tank (1), the other end of the explosion-proof heat-resistant pipe is divided into two branches, the tail end of one branch is connected with the position, close to the paraffin nozzle (17), on the liquid inlet pipe (25) and is connected with the upper gas nozzle (20), and the tail end of the other branch is located at the lower part in the hard glass tank (16) and is connected with the lower gas nozzle (12); the filter (4) and the heat exchanger (6) are arranged on the explosion-proof heat-resistant pipe (5); the lower end of the hard glass tank (16) is provided with a paraffin particle outlet (13) communicated with the experimental section.

2. The paraffin particle generator of claim 1, wherein: the explosion-proof heat-resistant pipe (5) is provided with a pressure gauge (2) and a main valve switch (3); the two branches are respectively provided with a branch valve switch (8) and a flowmeter (10).

3. The paraffin particle generator of claim 1, wherein: the paraffin particle generator further comprises a heating belt (7) and a temperature controller (22), wherein the heating belt (7) is coated outside the explosion-proof heat-resistant pipe (5), the liquid inlet pipe (25), the heat-resistant backflow pipe (21) and the gear pump (23), and the heating belt (7) is electrically connected with a temperature measuring probe of the temperature controller (22).

4. The paraffin particle generator of claim 1, wherein: the heat-resistant return pipe (21) is provided with an automatic pressure relief valve (24).

5. The paraffin particle generator of claim 1, wherein: the paraffin nozzle (17) and the lower gas nozzle (12) have opposite spraying directions.

6. The paraffin particle generator of claim 1, wherein: the side wall of the hard glass tank (16) is coated with heat insulation cotton (9), the outer side of the lower part of the hard glass tank is provided with a base (14), the upper port of the hard glass tank is provided with a sealing cover (18), and a sealing cover handle (19) is arranged on the sealing cover (18).

7. The paraffin particle generator of claim 1, wherein: the side wall of the paraffin heating tank (27) is coated with heat insulation cotton (9).

Technical Field

The invention belongs to the technical field of experimental devices, and particularly relates to a generator mainly used for generating molten paraffin particles in scientific research.

Background

The paraffin is used as a working medium with a lower melting point and higher viscosity, and can be atomized into paraffin particles in a lower-temperature environment, so that the melting and solidification processes of the dust particles in a high-temperature environment are simulated. The paraffin particles generated by the existing paraffin particle generator can not show the melting and solidification processes of the particles, and the paraffin particle generator is an instrument used at normal temperature. Therefore, heating the paraffin to a molten state and generating paraffin particles is a problem to be solved at present.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide a paraffin particle generator.

In order to achieve the aim, the paraffin particle generator provided by the invention comprises a compressor air storage tank, a filter, an explosion-proof heat-resistant pipe, a heat exchanger, a lower gas spray head, a hard glass tank, a paraffin nozzle, an upper gas spray head, a heat-resistant return pipe, a gear pump, a liquid inlet pipe and a paraffin heating tank; the paraffin heating tank is used for containing and heating solid paraffin and keeping the paraffin at a certain temperature; one end of the liquid inlet pipe is immersed in the paraffin heating tank, the other end of the liquid inlet pipe is positioned above the hard glass tank and is connected with one end of the heat-resistant backflow pipe, and the other end of the heat-resistant backflow pipe is positioned in the paraffin heating tank; the paraffin nozzle is arranged at the top of the hard glass tank and is communicated with the liquid inlet pipe; the gear pump is connected to the liquid inlet pipe; one end of the explosion-proof heat-resistant pipe is connected with an air outlet of the compressor air storage tank, the other end of the explosion-proof heat-resistant pipe is divided into two branches, the tail end of one branch is connected with the position, close to the paraffin nozzle, on the liquid inlet pipe and connected with the upper gas nozzle, and the tail end of the other branch is located at the lower part in the hard glass tank and connected with the lower gas nozzle; the filter and the heat exchanger are arranged on the explosion-proof heat-resistant pipe; the lower end of the hard glass tank is provided with a paraffin particle outlet communicated with the experimental section.

The explosion-proof heat-resistant pipe is provided with a pressure gauge and a main valve switch; the two branches are respectively provided with a branch valve switch and a flowmeter.

The paraffin particle generator further comprises a heating belt and a temperature controller, wherein the heating belt is wrapped outside the anti-explosion heat-resistant pipe, the liquid inlet pipe, the heat-resistant backflow pipe and the gear pump, and the heating belt is electrically connected with a temperature measuring probe of the temperature controller.

The heat-resistant return pipe is provided with an automatic pressure relief valve.

The jetting directions of the paraffin nozzle and the lower gas nozzle are opposite.

The outside cladding of lateral wall of stereoplasm glass jar have the heat preservation cotton, the lower part outside is equipped with the base, upper port department is equipped with sealed lid, seals to cover and installs sealed lid handle.

The side wall of the paraffin heating tank is coated with heat preservation cotton.

The paraffin particle generator provided by the invention has the following beneficial effects:

can continuously produce atomized paraffin particles, and has simple structure, low manufacturing cost and convenient use. In addition, the experimenter can visually observe the melting and solidification processes of the paraffin particles through the hard glass tank and the paraffin heating tank, and the method is very convenient and practical.

Drawings

Fig. 1 is a schematic structural diagram of a paraffin particle generator according to the present invention.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

As shown in fig. 1, the paraffin particle generator provided by the present invention comprises a compressor gas storage tank 1, a filter 4, an explosion-proof heat-resistant pipe 5, a heat exchanger 6, a lower gas nozzle 12, a hard glass tank 16, a paraffin nozzle 17, an upper gas nozzle 20, a heat-resistant return pipe 21, a gear pump 23, a liquid inlet pipe 25 and a paraffin heating tank 27; the paraffin heating tank 27 is used for containing and heating the solid paraffin 11 and keeping the paraffin 11 at a certain temperature; one end of the liquid inlet pipe 25 is immersed in the paraffin 11 in the paraffin heating tank 27, the other end is positioned above the hard glass tank 16 and is connected with one end of the heat-resistant reflux pipe 21, and the other end of the heat-resistant reflux pipe 21 is positioned in the paraffin heating tank 27; the paraffin nozzle 17 is arranged at the top of the hard glass tank 16 and is communicated with the liquid inlet pipe 25; the gear pump 23 is connected to the liquid inlet pipe 25; one end of the explosion-proof heat-resistant pipe 5 is connected with an air outlet of the compressor air storage tank 1, the other end of the explosion-proof heat-resistant pipe is divided into two branches, the tail end of one branch is connected with the position, close to the paraffin nozzle 17, on the liquid inlet pipe 25 and is connected with the upper gas nozzle 20, and the tail end of the other branch is located at the lower part in the hard glass tank 16 and is connected with the lower gas nozzle 12; the filter 4 and the heat exchanger 6 are arranged on the explosion-proof heat-resistant pipe 5; the lower end of the hard glass tank 16 is provided with a paraffin particle outlet 13 communicated with the experimental section.

The explosion-proof heat-resistant pipe 5 is provided with a pressure gauge 2 and a main valve switch 3; the branch valve switch 8 and the flowmeter 10 are respectively arranged on the two branches.

The paraffin particle generator further comprises a heating belt 7 and a temperature controller 22, wherein the heating belt 7 is coated outside the explosion-proof heat-resistant pipe 5, the liquid inlet pipe 25, the heat-resistant backflow pipe 21 and the gear pump 23, and the heating belt 7 is electrically connected with a temperature measuring probe of the temperature controller 22.

The heat-resistant return pipe 21 is provided with an automatic pressure relief valve 24.

The jetting directions of the paraffin nozzle 17 and the lower gas nozzle 12 are opposite.

The side wall of the hard glass tank 16 is coated with heat insulation cotton 9, the outer side of the lower part of the hard glass tank is provided with a base 14, the upper port of the hard glass tank is provided with a sealing cover 18, and the sealing cover 18 is provided with a sealing cover handle 19.

The side wall of the paraffin heating tank 27 is externally coated with heat insulation cotton 9.

The working principle of the paraffin particle generator provided by the invention is explained as follows:

firstly, opening a switch on a paraffin heating tank 27 by an experimenter to melt solid paraffin 11 in the paraffin heating tank into liquid paraffin 11;

secondly, opening the heating belt 7 and the temperature controller 22 to melt the paraffin residue in the gear pump 23 and simultaneously heating the explosion-proof heat-resistant pipe 5, the liquid inlet pipe 25 and the heat-resistant return pipe 21;

thirdly, opening a compressor air storage tank 1 to enable compressed air to flow into an explosion-proof heat-resistant pipe 5, and then adjusting the opening of a main valve switch 3 according to a pressure gauge 2 until the compressed air flowing through the explosion-proof heat-resistant pipe 5 reaches proper pressure;

fourthly, opening the heat exchanger 6, wherein compressed air flows into the filter 4 and the heat exchanger 6 in sequence, impurities in the compressed air are filtered by the filter 4, the compressed air entering the heat exchanger 6 is heated, then flows into two branches of the explosion-proof heat-resistant pipe 5, the opening degree of the branch valve switch 8 is adjusted according to the flowmeter 10 until the compressed air reaches a proper flow rate, and finally, the hot compressed air is sprayed out from the upper gas nozzle 20 and the lower gas nozzle 12 respectively;

fifthly, opening the automatic pressure relief valve 24 to ensure the pressure of the liquid paraffin 11 in the heat-resisting return pipe 21 to be stable;

sixthly, the gear pump 23 is started, liquid paraffin 11 is pumped into the liquid inlet pipe 25, the liquid paraffin 11 is premixed with the hot compressed air sprayed out of the upper gas spray nozzle 20 at the upper gas spray nozzle 20 and then becomes paraffin particles, the paraffin particles are sprayed out downwards from the paraffin spray nozzle 17, the sprayed paraffin particles collide with the hot compressed air sprayed out upwards from the lower gas spray nozzle 12 oppositely, atomized paraffin particles are generated, and the atomized paraffin particles enter a test section for research through the paraffin particle outlet 13 according to the Bernoulli principle; and the excess liquid paraffin 11 will flow back into the paraffin heating tank 27 through the heat resistant return pipe 21.