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CN-224231559-U - Aerosol particle size detection system and sample injection device

CN224231559UCN 224231559 UCN224231559 UCN 224231559UCN-224231559-U

Abstract

The aerosol particle size detection system comprises a sample injection device and a collision detection device, wherein the sample injection device comprises a suction pipeline, a detection pipeline and an adjusting pipeline, the collision detection device comprises a collision sampler and a suction device which are communicated with each other in a sealing mode, the other end of the collision sampler is communicated with an air outlet of the detection pipeline in a sealing mode, and the suction device is used for sucking aerosol through the detection pipeline at a preset detection flow rate. Because the aerosol is pumped by the pumping pipeline, the air can be supplemented by the adjusting pipeline, so that the particle size detection system can directly detect the aerosol while pumping the aerosol, the aerosol is not required to be stored, the loss of the aerosol in the pipeline is reduced, and the stability and the accuracy of detection are improved.

Inventors

  • CHEN ZHENG
  • LIU ZHIQIANG
  • CHEN ZHICHAO
  • CHENG YUANFEI
  • FU YAO

Assignees

  • 爱奇迹创造有限公司

Dates

Publication Date
20260512
Application Date
20250407

Claims (10)

  1. 1. The aerosol particle size detection system is characterized by comprising a sample injection device and a collision detection device; The sample injection device comprises a suction pipeline, a detection pipeline and an adjusting pipeline, wherein an air outlet of the suction pipeline, an air outlet of the adjusting pipeline and an air inlet of the detection pipeline are communicated in a sealing manner; The air inlet of the suction pipeline is connected with the aerosol generating device and is used for receiving aerosol generated by the aerosol generating device; The air inlet of the adjusting pipeline is communicated with the outside, and the adjusting pipeline is provided with an adjusting mechanism for adjusting the air flow rate of the adjusting pipeline; The collision detection device comprises an impact sampler and a suction device which are communicated with each other in a sealing way, the other end of the impact sampler is communicated with an air outlet of the detection pipeline in a sealing way, and the suction device is used for sucking aerosol through the detection pipeline at a preset detection flow.
  2. 2. The aerosol particle size detection system of claim 1, wherein the sample injection device further comprises a diverter line, an air outlet of the diverter line is in sealed communication with an air outlet of the suction line, and an air inlet of the diverter line is in communication with the outside.
  3. 3. The aerosol particle size detection system of claim 2, wherein the sample injection device further comprises at least one drive switch, the drive switch being disposed on the suction line and/or the shunt line for controlling on-off of the suction line and/or the shunt line.
  4. 4. The aerosol particle size detection system of any of claims 1-3, wherein the adjustment mechanism comprises a ball valve disposed in the adjustment conduit.
  5. 5. The aerosol particle size detection system of claim 4, wherein the sample injection device further comprises a flow rate detector disposed in the conditioning line for detecting an air flow rate in the conditioning line.
  6. 6. The aerosol particle size detection system of any one of claims 1 to 3, wherein the sample introduction device is of an integrally formed structure, or the sample introduction device is formed by mutually splicing a plurality of parts, and the parts are mutually sealed at the splicing position.
  7. 7. The aerosol particle size detection system of any one of claims 1 to 3, wherein the sample introduction device is made of a metallic material and/or a polymeric material.
  8. 8. The aerosol particle size detection system of any one of claims 1-3, wherein at least the aspiration line and the detection line in the sample introduction device have a transparent structure.
  9. 9. A particle size aerosol detection system as claimed in any one of claims 1 to 3 wherein the detection conduit and the conditioning conduit extend in a horizontal direction, the air outlet of the suction conduit being in communication with the detection conduit and the conditioning conduit, the air inlet of the suction conduit being located vertically below the air outlet of the suction conduit.
  10. 10. The sample injection device is characterized by comprising a suction pipeline, a detection pipeline and an adjustment pipeline; The air outlet of the suction pipeline, the air outlet of the adjusting pipeline and the air inlet of the detecting pipeline are communicated with each other in a sealing manner; The air inlet of the suction pipeline is connected with the aerosol generating device and is used for receiving aerosol generated by the aerosol generating device; The air inlet of the adjusting pipeline is communicated with the outside, and the adjusting pipeline is provided with an adjusting mechanism for adjusting the air flow rate of the adjusting pipeline; the device comprises a detection pipeline, an air outlet of the detection pipeline is communicated with a collision detection device in a sealing mode, the collision detection device comprises a collision sampler and a suction device which are communicated with each other in a sealing mode, the collision sampler is communicated with the air outlet of the detection pipeline in a sealing mode, and the suction device is used for sucking aerosol through the detection pipeline at a preset detection flow.

Description

Aerosol particle size detection system and sample injection device Technical Field The application relates to the technical field of aerosol detection, in particular to an aerosol particle size detection system and a sample injection device. Background When the impact type grading sampler is adopted to detect the particle size of the aerosol, the aerosol in the aerosol cannot be directly poured into a test window, but a sucking device is required to be used, the aerosol is sucked from an aerosol generating device, then is temporarily stored in a pipeline, a certain amount of aerosol is stored, and then the temporarily stored aerosol is injected into the impact type grading sampler through a hose to be detected, and in the process, a part of aerosol is lost by the sucking device and the pipeline respectively, so that a detection result is larger in and out from the actual situation, and the detection stability and accuracy are poor. Disclosure of utility model The application mainly solves the technical problem that aerosol detection stability and accuracy are poor in the related technology. In order to solve the technical problems, the embodiment of the application provides an aerosol particle size detection system which comprises a sample injection device and a collision detection device, wherein the sample injection device comprises a suction pipeline, a detection pipeline and an adjustment pipeline, an air outlet of the suction pipeline, an air outlet of the adjustment pipeline and an air inlet of the detection pipeline are communicated in a sealing manner, the air inlet of the suction pipeline is connected with an aerosol generating device and is used for receiving aerosol generated by the aerosol generating device, the air inlet of the adjustment pipeline is communicated with the outside, an adjustment mechanism is arranged on the adjustment pipeline and is used for adjusting the air flow rate of the adjustment pipeline, the collision detection device comprises a collision sampler and a suction device which are communicated in a sealing manner, the other end of the collision sampler is communicated with the air outlet of the detection pipeline in a sealing manner, and the suction device is used for sucking the aerosol through the detection pipeline at a preset detection flow rate. In one embodiment, the sample injection device further comprises a shunt pipeline, an air outlet of the shunt pipeline is communicated with an air outlet of the suction pipeline in a sealing manner, and an air inlet of the shunt pipeline is communicated with the outside. In one embodiment, the sample injection device further includes at least one driving switch, where the driving switch is disposed on the suction pipeline and/or the shunt pipeline, and is used to control on-off of the suction pipeline and/or the shunt pipeline. In one embodiment, the adjustment mechanism includes a ball valve disposed in the adjustment line. In one embodiment, the sample injection device further includes a flow rate detector, where the flow rate detector is disposed in the adjusting pipeline and is configured to detect a flow rate of air in the adjusting pipeline. In one embodiment, the sample injection device is of an integrally formed structure, or the sample injection device is formed by mutually splicing a plurality of parts, and all the parts are mutually sealed at the splicing position. In one embodiment, the sample introduction device is made of a metallic material and/or a polymeric material. In one embodiment, in the sample injection device, at least the suction line and the detection line have transparent structures. In one embodiment, the detecting pipeline and the adjusting pipeline extend along a horizontal direction, an air outlet of the suction pipeline is communicated with the detecting pipeline and the adjusting pipeline, and an air inlet of the suction pipeline is located below the air outlet of the suction pipeline along a vertical direction. The embodiment of the application also provides a sample injection device which comprises a suction pipeline, a detection pipeline and an adjustment pipeline, wherein an air outlet of the suction pipeline, an air outlet of the adjustment pipeline and an air inlet of the detection pipeline are communicated with each other in a sealing mode, the air inlet of the suction pipeline is connected with an aerosol generating device and is used for receiving aerosol generated by the aerosol generating device, the air inlet of the adjustment pipeline is communicated with the outside, an adjustment mechanism is arranged on the adjustment pipeline and is used for adjusting the air flow rate of the adjustment pipeline, the air outlet of the detection pipeline is communicated with a collision detection device in a sealing mode, the collision detection device comprises a collision sampler and a suction device which are communicated with each other in a sealing mode, the collision sampler is communicat