Particle filter balance weighing device

Abstract

The invention provides a balancing and weighing device for a particle filtering membrane. The balancing and weighing device comprises a filtering membrane weighing unit for weighing a filtering membrane, and further comprises a rack with a constant-temperature and constant-humidity working chamber, and a filtering membrane storage unit and a filtering membrane conveying unit which are arranged in the constant-temperature and constant-humidity working chamber respectively; the filtering membrane weighing unit is located in the constant-temperature and constant-humidity working chamber; the filtering membrane conveying unit comprises membrane fetching tongs for enabling the filtering membrane to be conveyed between the filtering membrane storage unit and the filtering membrane weighing unit; the balancing and weighing device for particles further comprises an environment controlling unit for controlling the temperature and the humidity of the constant-temperature and constant-humidity working chamber. The constant-temperature and constant-humidity working chamber is used as a closed working environment for finishing the balancing and the weighing of the filtering membrane. The environment controlling unit is used for carrying out real-time monitoring and controlling on the environment temperature, humidity and cleanliness in the constant-temperature and constant-humidity working chamber to ensure that that the environment in which the balancing and the weighing of the filtering membrane are carried out meets the standard requirements and keeps the same. In the whole process, the manual operation amount is small so that the system error is reduced; the working efficiency is improved effectively and the sample weighing success rate is guaranteed.

Description

technical field [0001] The invention relates to a particle filter membrane balance weighing device. Background technique [0002] Tiny particulate matter pollution in the air is not only the main cause of haze weather, but especially inhalable particulate matter (PM2.5: particles less than or equal to 2.5 microns) will affect human health, mainly on the respiratory system and cardiovascular system. harm. Therefore, the concentration of particulate matter in the air is one of the important criteria for judging air quality. [0003] At present, the determination methods of particulate matter concentration in the air can be divided into manual monitoring method and automatic monitoring method. The most widely used automatic monitoring method is the β-ray absorption method and the micro-vibration balance method. Although the β-ray absorption method and the micro-oscillating balance method are recognized standard methods, which can be automatically monitored, easy to operate, ...

AI Technical Summary

Problems solved by technology

[0006]According to the regulations, the traditional method of only using constant temperature and humidity cabinets can no longer meet the requirements of membrane weighing analysis. The method of ultra-clean workshop to meet the conditions of filter membrane weighing analysis

However, the plan to establish a constant temperature and humidity ultra-clean workshop has the following problems: it takes up a lot of space, the cost of construction and operation is high, and the entry and exit of personnel is easy to cause damage to the temperature and humidity environment. In addition, the weighing process of the filter membrane in this plan still requires personnel full operation

[0007] If it is necessary to analyze the data of several or more monitoring points at the same time, the number of filter membranes will be relatively large, and the weighing work will be more arduous

At the same time, because the balance and weighing of the filter membrane have high requirements on the environment and staff, and the process is cumbersome and heavy workload, the weighing process of the filter membrane is easy to fail, and the weight of the filter membrane cannot be accurately measured.

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