4results about How to "Improve system security" patented technology

This invention provides a regulating device for a butterfly valve orifice plate for mixed gas in a coke oven basement, comprising a valve body, a continuous regulating mechanism for the butterfly valve, and a fixed throttling mechanism for the orifice plate. The inner cavity of the valve body serves as a gas flow channel, and the continuous regulating mechanism for the butterfly valve is installed within the channel perpendicular to the gas delivery direction. The continuous regulating mechanism for the butterfly valve is a structure that continuously and steplessly adjusts the opening and closing of the butterfly plate through a pneumatic actuator to achieve different gas flow rates. The fixed throttling mechanism for the orifice plate is an integrated throttling structure arranged within the channel along the gas delivery direction, and is sealed by a self-tightening lever clamping mechanism. The invention also provides a method for controlling gas flow using this device, which solves the problems of coarse regulation, the need to replace the orifice plate, and operational hazards associated with traditional orifice plate valves. It achieves continuous and precise regulation of gas flow without the need to replace the orifice plate, significantly improving the coke oven heating control level and system safety. It is particularly suitable for coke oven basement gas pipeline systems where space is limited and safety requirements are extremely high.

This application relates to a nitrogen humidifier, comprising a first housing, a connecting member, an air inlet pipe, a liquid inlet pipe, a second housing, a flow restrictor, and a connector. The connecting member is disposed at a first opening of the first housing and has a first air passage, an air inlet passage, and a liquid inlet passage, which are respectively connected to an external controlled air source and a liquid source. The air inlet pipe and the liquid inlet pipe respectively introduce gas and liquid into a first accommodating space for premixing. The first air passage connects to a second accommodating space of the second housing, where the flow restrictor is disposed. The flow restrictor agitates the ejected mixed airflow to achieve secondary mixing. The connector is disposed at a third opening of the second housing to exhaust the mixed gas. This nitrogen humidifier, through independent gas and liquid supply and a two-stage mixing design, effectively improves humidification efficiency and humidity stability, solving the problems of low mixing efficiency and poor humidity control in existing technologies, and is suitable for high-precision process requirements.

This invention discloses a method and system for credibility analysis of home-based elderly care health summaries based on electronic photo frames, relating to the field of multi-source data fusion technology. This invention retrieves health records and knowledge bases based on event objects to generate display requirement objects; generates health summary text and a set of interactive controls according to the display requirements, forming a display payload; generates a display queue based on device status and determines the content to be pushed; loads and renders a template to complete the display; collects touch and voice behaviors within the interactive window, generates a unified interaction record, and reports any non-response; extracts features from touch, voice, and physiological signals, calculates signal quality scores, and generates a comprehensive confirmation confidence level; summarizes the signal quality scores, calculates the global mean, compares it with a threshold, and determines whether to execute a correction process, significantly improving the security, reliability, and user experience of the home-based elderly care health summary system.

The application discloses a method for evaluating the comprehensive performance of an oil-gas mixed conveying pump based on multi-source information fusion, which comprises the following steps: obtaining performance data of the oil-gas mixed conveying pump under different gas contents and multiple working conditions; selecting evaluation indexes from the aspects of performance, gas-liquid uniformity and stability based on the performance data; determining the importance order of the indexes by using the analytic hierarchy process, constructing a judgment matrix and calculating the weight coefficients of the indexes; establishing a decision matrix by using the technique for order preference by similarity to ideal solution (TOPSIS), and determining the positive and negative ideal solutions of each working condition of the oil-gas mixed conveying pump in combination with the weight coefficients; calculating the relative closeness based on the positive and negative ideal solutions; quantitatively evaluating the overall quality of the mixed conveying pump under different working conditions according to the relative closeness, and analyzing the comprehensive influence trend of the performance, gas-liquid uniformity and stability caused by the import gas content and flow rate. The method solves the problem of poor accuracy and objectivity of the overall performance evaluation of the mixed conveying pump caused by single performance parameter analysis in the prior art, and provides technical support for the optimized design and performance improvement of the oil-gas mixed conveying pump.