Filter element service life calculation method based on double engines

Abstract

The invention provides a filter element service life calculation method based on double engines, and belongs to the technical field of water purifiers. The method comprises the following steps of removing abnormal data; determining the initial life of the filter element; collecting two flow difference values, and calculating according to the initial service life of the filter element and the two flow difference values to obtain an engine result; calculating according to the initial life of the filter element to obtain a time engine result, and anchoring the time engine result; comparing the time engine result with the anchoring result, and injecting a time factor for feedback correction to obtain a modified time engine result; and taking the maximum value between the engine result and the modified time engine result to obtain the service life of the filter element. Flow factors and time factors are brought into a calculation result to evaluate the service life of the filter element, and mutual correction of the service life of the filter element is realized, so that inaccurate evaluation of the service life of the filter element is prevented, the situation that the filter element is overused is fundamentally avoided, the drinking water safety of customers is protected, and the expired filter element is replaced in time.

Description

technical field [0001] The invention belongs to the technical field of water purifiers, in particular to a method for calculating the life of a filter element based on dual engines. Background technique [0002] In recent years, with the investment and attention of the national strategy in the field of public health, traditional water purification equipment is usually unable to be monitored throughout the process of use, and the life of the filter element has not been effectively evaluated, or the evaluation process has been interrupted or harassed due to factors such as power supply and communication. The evaluation results are gradually inaccurate in the actual use process, which leads to overuse of the filter element and endangers the safety of water quality. [0003] With the continuous attention to the life of the filter element, various emerging intelligent water purification equipment emerges in an endless stream. By recording information such as water quality, water ...

AI Technical Summary

Problems solved by technology

Due to the different types of filter elements, such as: PP cotton filter element, activated carbon filter element, reverse osmosis membrane filter element, nanofiltration reverse osmosis membrane filter element, ion exchange resin filter element, etc., the physical and chemical properties of various filter elements vary with time. In the same way, the usual assessment is based on the use of Arizona State Standard Test Dust (ISO 12103-1A2, ISO12103-1A4) to add pure water to a turbidity of 2NTU for functional reliability and product consistency testing. In the subsequent mass production process, The reliability of the product is determined in the form of random inspection. Therefore, the existing intelligent water purification equipment ignores the time factor at a single point of time, and realizes the evaluation of the loss of the life of the filter element by the flow increment, but it cannot be effectively integrated under the condition of a long service life. Variables such as time and flow rate comprehensively determine the life consumption of the filter element itself, resulting in the actual life often being less than expected

[0004] Defects of existing technology: the current development of water purifiers is moving towards the trend of intelligence, and various indicators are gradually monitored, and the filter life detection of different equipment is not the same. There are two main methods: one is to use the time timing mode , that is to reset the time count from the replacement of the filter element, and remind the replacement when the rated time limit is reached. This method is less costly and has a single form. Only time variables participate and the calculation model cannot be changed. The reliability of the result is poor; the second is to use the flow rate Record, compare the upper limit of the flow rate and remind the life of the filter element. This method fails to take into account the possible loss of the life of the filter element due to long-term standing water purification equipment in actual use, and such loss cannot be ignored in low-frequency scenarios.

[0005] To sum up, the current mainstream calculation / evaluation method of filter element life fails to fully include the influence of various external factors on filter element life in typical usage scenarios, and the calculation method is relatively simple or ignores the indirect impact of some factors on filter element life, resulting in inaccuracy

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