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Smoke detector dust response performance testing device

A technology for smoke detectors and testing devices, which is applied to the construction details of measuring devices, gas analyzers, instruments, etc., and can solve the problems of inability to test the dust response performance of smoke detectors, no dust response performance of smoke detectors, and errors. report and other problems, to achieve the effect of accurate and reliable test results, easy to use, and convenient testing

Pending Publication Date: 2021-12-21
深圳市高新投三江电子股份有限公司
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  • Description
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Problems solved by technology

Dust is ubiquitous in the daily environment, especially in places with strong wind and sand. The accumulation of dust in the detector maze often leads to false alarms. Therefore, it is necessary to test the dustproof performance of the detector, but at present There is no test device for the dust response performance of the smoke detector, and it is impossible to accurately test the dust response performance of the smoke detector

Method used

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  • Smoke detector dust response performance testing device
  • Smoke detector dust response performance testing device
  • Smoke detector dust response performance testing device

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Embodiment Construction

[0020] In order to more clearly illustrate the purpose, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, and a clear and complete description will be made. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In addition, directional terms mentioned in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., are for reference only The directions shown in the attached drawings and the direction terms used are for better and clearer description and understanding of the present invention, rather than indicating or implying the orient...

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Abstract

The invention relates to a smoke detector dust response performance testing device, which comprises a base, the top of the base is provided with a hemispherical base groove, the top of the base is detachably connected with a top cover which covers the base groove, and the bottom surface of the top cover is provided with a top cover groove which is the same as the base groove; a fan with an air outlet facing downwards and arranged in the middle is detachably installed in the base groove, an air outlet air uniformizing plate detachably installed in the base groove is arranged at the lower end of the air outlet, and a base air uniformizing plate detachably installed in the base groove is arranged at the upper end of the base groove; a mounting frame which is detachably mounted in the top cover groove and is used for mounting a detector is arranged in the middle of the bottom of the top cover groove, and a lead through hole through which a lead penetrates is formed in the middle of the top of the top cover. According to the invention, a uniform dust environment can be simulated, and the dust response performance of different detectors can be accurately tested.

Description

technical field [0001] The invention relates to the technical field of fire detection, in particular to a test device for the dust response performance of a smoke detector. Background technique [0002] Photoelectric smoke detectors on the market are mainly based on the principle of particle optical Mie scattering and use an optical maze to detect the concentration of smoke particles. When the concentration of smoke particles reaches the alarm threshold, the detector will alarm. Since the photoelectric smoke detector essentially detects the light scattering signal of particles, non-smoke particles can also cause light scattering, such as dust, water vapor, etc., which is consistent with the light scattering principle of smoke particles. Dust is ubiquitous in the daily environment, especially in places with strong wind and sand. The accumulation of dust in the detector maze often leads to false alarms. Therefore, it is necessary to test the dustproof performance of the detect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06G01N33/00G08B17/107
CPCG01N15/06G01N33/007G08B17/107G01N15/075
Inventor 张金肖学波
Owner 深圳市高新投三江电子股份有限公司
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