CN110935404A - Heating aerosol generating device - Google Patents
Heating aerosol generating device Download PDFInfo
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- CN110935404A CN110935404A CN201911333574.XA CN201911333574A CN110935404A CN 110935404 A CN110935404 A CN 110935404A CN 201911333574 A CN201911333574 A CN 201911333574A CN 110935404 A CN110935404 A CN 110935404A
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- aerosol generating
- generating device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/0095—Preparation of aerosols
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Abstract
The invention discloses a heating aerosol generating device, which comprises a shell, a columnar heating device arranged in the shell, a generating pipeline wound on the periphery of the heating device and an oil storage tank connected with one end part of the generating pipeline, wherein one end part of the generating pipeline is connected with the other end of the oil storage tank and is provided with an aerosol outlet.
Description
Technical Field
The invention relates to the field of aerosol, in particular to a heating aerosol generating device.
Background
High efficiency and ultra high efficiency filters are key components in clean room environmental control systems. In order to ensure the quality of the clean room environment, it is necessary to ensure that not only the filter is intact during the manufacturing process, but also the filter is properly assembled after being installed on site, so that no leakage occurs. The aerosol generator and the aerosol photometer form a set of complete detection system for measuring the performance of the filter and the performance of the filter after installation; they have important applications in the field of clean rooms.
After the clean room engineering is completed, the sealing performance and the filtering performance of each filter need to be detected, and the filter leakage is prevented from affecting the quality of the clean environment. An aerosol generator is placed at the inlet of the central ventilation system, 20-100 microgram/liter of aerosol particles are generated at the upstream of each filter, then the outlet of each filter is scanned by a photometer in turn, and whether leakage exists is judged according to the detection result. The method can detect each filter by only moving the photometer, and has convenient detection and high efficiency. However, the requirements for aerosol generators are relatively high and it is necessary to ensure that the concentration of aerosol particles upstream of each filter is between 20 and 100 micrograms/litre.
However, the conventional aerosol generating device generally has a drawback that the concentration of generated aerosol is not stable, or the speed of generated aerosol is slow, and a preheating time of several tens of minutes is required.
Thus, there is a need for a rapid and stable aerosol generating device.
Disclosure of Invention
The invention aims to provide a device for generating aerosol quickly and stably.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a heating aerosol generating device, includes the casing, sets up columnar heating device in the casing, convolutes the pipeline and the connection take place of heating device periphery the oil storage tank of pipeline tip takes place, a tip connection of pipeline takes place the oil storage tank other end is provided with the aerosol export.
Preferably, a thermal insulation layer is arranged in the shell.
Preferably, the housing comprises an upper housing, a lower housing and a cavity between the upper housing and the lower housing, the heating device and the generating duct being disposed in the cavity.
Preferably, the heating device is a cylindrical heating rod, and the generating pipeline is spirally wound on the heating rod.
Preferably, the generation conduit is a stainless steel capillary.
Preferably, it further comprises a temperature sensor for detecting the temperature of the surface of the generation pipe.
Further preferably, the heating device further comprises a temperature controller connected with the temperature sensor and the heating device, and the temperature controller adjusts the heating amount of the heating device according to the temperature acquired by the temperature sensor.
Preferably, the oil storage tank is connected with a compressed gas generator, and the compressed gas generator generates compressed gas to extrude the liquid in the oil storage tank into the generation pipeline.
Further preferably, the compressed gas generated by the compressed gas generator is an inert gas.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. according to the invention, the generating pipeline is wound on the periphery of the heating device, so that the generating pipeline can be rapidly heated by the heating device to reach the required temperature.
2. The invention can control the size forming process of aerosol particles by controlling the temperature of the stainless steel capillary tube, and can control the concentration of the aerosol particles by controlling the flow rate of oil entering the stainless steel capillary tube.
3. Because the temperature inside and outside the shell is isolated by the heat-insulating layer of the shell, the temperature sensor reflects the temperature of the capillary in real time, and the temperature sensor has no delay or lagging of the temperature and can accurately control the temperature. The accuracy of the particles produced by the aerosol generator is improved.
Drawings
FIG. 1 is a perspective view of an embodiment;
FIG. 2 is a schematic perspective view of a stainless steel capillary tube;
FIG. 3 is a schematic diagram of the internal structure of the embodiment;
fig. 4 is a schematic diagram of the embodiment.
In the above drawings: 1. a housing; 11. an upper housing; 12. a lower housing; 2. a heating rod; 3. a stainless steel capillary tube; 4. a temperature sensor; 5. a temperature controller; 6. an oil storage tank; 7. a compressed gas generator; 8. a power source; 9. an oil quantity regulating valve; 10. and (4) controlling the valve.
Detailed Description
The invention will be further described with reference to examples of embodiments shown in the drawings to which:
referring to figures 1-2 of the drawings, a heated aerosol generating device comprises a housing 1 having a thermally insulating layer, a heating device, a generating conduit and a temperature sensor 4 disposed within the housing 1.
Specifically, the heating device is a cylindrical heating rod 2, and the generation pipe is spirally wound on the heating rod 2. The generating pipeline is a stainless steel capillary 3, and the diameter of the generating pipeline is less than or equal to 1 mm.
The temperature sensor 4 is arranged on the surface of the stainless steel capillary 3 and used for monitoring the temperature of the surface of the stainless steel capillary 3 in real time. The temperature data monitored by the temperature sensor 4 is transmitted to the temperature controller 5, the temperature controller 5 adjusts the heating amount of the heating rod 2 according to the temperature acquired by the temperature sensor 4, and the temperature sensor 4 and the temperature controller 5 in the embodiment can directly purchase the appropriate type according to the specific needs.
Furthermore, the housing 1 comprises an upper housing 11, a lower housing 12 and a cavity between the upper housing 11 and the lower housing 12, in which cavity the heating rod 2 and the generation conduit are arranged. The upper shell 11 and the lower shell 12 are both provided with heat insulation layers, and proper heat insulation layer materials and thicknesses are selected, so that when the temperature of the interior of the shell 1 is high at about 400 ℃, the surface of the shell 1 can still be kept in a normal temperature state.
In the present embodiment, one end of the stainless steel capillary tube 3 is connected to the aerosol outlet, the other end is connected to the oil storage tank 6, and the compressed gas generator 7 injects an inert compressed gas (nitrogen, helium, carbon dioxide, or the like) into the oil storage tank 6 to press the liquid in the oil storage tank 6 into the stainless steel capillary tube 3.
See fig. 3 for a schematic illustration. The heating rod 2 is connected with a power supply 8 through a temperature controller 5, an oil quantity regulating valve 9 is arranged between the oil storage tank 6 and the stainless steel capillary tube 3, and a control valve 10 is arranged between the oil storage tank 6 and the compressed gas generator 7.
The liquid is heated and gasified rapidly after entering the stainless steel capillary 3, and is continuously heated through the stainless steel capillary 3 until the temperature of the liquid is the same as that of the stainless steel capillary 3, then the high-temperature gas is sprayed out through the aerosol outlet and meets the air at normal temperature, the temperature of the oil gas is reduced suddenly, and the oil gas is condensed to form aerosol particles.
The flow of the liquid entering the stainless steel capillary 3 can be controlled through the control valve 10 and the oil quantity regulating valve 9, and the concentration of the generated aerosol particles can be controlled; the temperature of the stainless steel capillary 3 can be controlled by the temperature controller 5 and the temperature sensor 4, so that the size formation process of aerosol particles can be controlled.
Due to the application of the technical scheme, compared with the prior art, the embodiment has the following advantages:
1. according to the invention, the generation pipeline is wound on the periphery of the heating rod 2, so that the generation pipeline can be rapidly heated by the heating rod 2 to reach the required temperature.
2. According to the invention, the size forming process of aerosol particles can be controlled by controlling the temperature of the stainless steel capillary 3, and the concentration of the generated aerosol particles can be controlled by controlling the flow rate of oil entering the stainless steel capillary 3.
3. Because the temperature inside and outside the shell 1 is isolated by the heat-insulating layer, the temperature sensor 4 reflects the temperature of the capillary tube in real time, so that the temperature delay and lag do not exist, and the temperature can be accurately controlled. The accuracy of the particles produced by the aerosol generator is improved.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (9)
1. A heated aerosol generating device, comprising: the aerosol generating device comprises a shell, a columnar heating device arranged in the shell, a generating pipeline wound on the periphery of the heating device and an oil storage tank connected with one end of the generating pipeline, wherein one end of the generating pipeline is connected with the other end of the oil storage tank and an aerosol outlet is formed in the other end of the oil storage tank.
2. A heated aerosol generating device according to claim 1, wherein: a heat insulation layer is arranged in the shell.
3. A heated aerosol generating device according to claim 1, wherein: the shell comprises an upper shell, a lower shell and a cavity between the upper shell and the lower shell, and the heating device and the generating pipeline are arranged in the cavity.
4. A heated aerosol generating device according to claim 1, wherein: the heating device is a cylindrical heating rod, and the generating pipeline is spirally wound on the heating rod.
5. A heated aerosol generating device according to claim 1, wherein: the generating pipeline is a stainless steel capillary.
6. A heated aerosol generating device according to claim 1, wherein: it also includes a temperature sensor that detects the temperature of the surface of the generator conduit.
7. A heated aerosol generating device according to claim 6, wherein: the temperature control device is connected with the temperature sensor and the heating device, and the temperature controller adjusts the heating quantity of the heating device according to the temperature acquired by the temperature sensor.
8. A heated aerosol generating device according to claim 1, wherein: the oil storage tank is connected with a compressed gas generator, the compressed gas generator generates compressed gas, and liquid in the oil storage tank is squeezed into the generation pipeline.
9. A heated aerosol generating device according to claim 8, wherein: the compressed gas generated by the compressed gas generator is inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333574.XA CN110935404A (en) | 2019-12-23 | 2019-12-23 | Heating aerosol generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911333574.XA CN110935404A (en) | 2019-12-23 | 2019-12-23 | Heating aerosol generating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110935404A true CN110935404A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911333574.XA Pending CN110935404A (en) | 2019-12-23 | 2019-12-23 | Heating aerosol generating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457588A (en) * | 2021-07-12 | 2021-10-01 | 山西新华防化装备研究院有限公司 | Oil mist aerosol generating device |
-
2019
- 2019-12-23 CN CN201911333574.XA patent/CN110935404A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113457588A (en) * | 2021-07-12 | 2021-10-01 | 山西新华防化装备研究院有限公司 | Oil mist aerosol generating device |
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