5results about How to "Avoid the greenhouse effect" patented technology

The invention discloses a mixed environment-friendly gas proportioning method and a mixed environment-friendly gas proportioning system, and relates to the technical field of environment-friendly insulating media, and the mixed environment-friendly gas proportioning method comprises the following steps: fitting by adopting a global optimization algorithm to obtain Antomillion characteristic constants of SF6, N2 and CO2 gases; calculating saturated vapor pressure under different gas components, and testing a curve of the breakdown voltage of the mixed gas along with the change of the applied voltage under different saturated vapor pressure and mixing proportions to obtain an optimal mixing proportion; and taking the environment-friendly gas obtained by mixing as an insulating medium and carrying out an arc extinguishing capability test. The environment-friendly gas is obtained by mixing 30% of SF6, 69% of N2 and 1% of CO2, and the gas is used as a gas insulation medium used in gas insulation equipment, so that the use amount of SF6 is reduced, the environment-friendly requirement is met, toxic decomposition products are reduced, the greenhouse effect is avoided, the insulating property and the arc extinguishing effect of the gas are ensured, and the service life of the gas is prolonged. And the stability and the safety can be ensured in different working environments.

This invention belongs to the field of coal mine rockburst and gas control, specifically involving a coal seam mining method based on directional drilling and hydraulic fracturing for depressurization and gas extraction. The method includes tunneling and hauling uphill, while simultaneously conducting depressurization and pre-gas extraction of the entire first mining face area through directional drilling from the surface. Then, negative pressure ventilation is implemented through the directional drilling on the surface. After the hauling and uphill tunneling is completed, the first mining face can be started immediately, with simultaneous return air tunneling. This significantly improves the timing and efficiency of starting the first mining face, allowing for faster recovery and cost reduction. Furthermore, during negative pressure ventilation at the surface using directional drilling, the gas and coal dust generated at the tunneling face flow with the airflow through the directional drilling to the surface, minimizing health impacts on workers at the tunneling face and greatly improving the safety of the working environment.

The present invention provides a ventilation engineering concentration intelligent cut-off control system, which relates to the field of intelligent control technology, and includes: a power supply module; a gas concentration probe, electrically connected to the power supply module, for real-time detection of gas concentration; a control module, connected to the power supply module and the gas concentration probe, for receiving a gas concentration signal, and analyzing the gas concentration signal to generate a control signal; a remote transmission module, connected to the power supply module and the control module, for remote transmission of control signals; a cut-off valve, electrically connected to the power supply module, for receiving a control signal emitted by the remote transmission module, and opening or closing the gas pipeline according to the control signal. The control module of the present invention can determine and prompt a pre-set replacement qualification standard, avoiding the safety risks brought by operating personnel approaching the vent to detect changes in gas concentration.

The invention relates to the technical field of efficient sulfur degradation and resource conversion and utilization of sulfur hexafluoride, and discloses a device for preparing NF3 by activating SF6 through dielectric barrier discharge, the device comprises a reaction unit, a gas supply unit is arranged on the left side of the reaction unit, a power supply unit is arranged on the top of the reaction unit, and a condensation unit is arranged on the right side of the reaction unit. The treatment unit is arranged at the bottom of the condensation unit, the reaction unit is connected with the gas supply unit through a gas pipe, the reaction unit is electrically connected with the power supply unit, and the reaction unit is connected with the condensation unit through a gas pipe; according to the method, a dielectric barrier discharge technology is adopted, efficient discharge can be achieved under normal pressure or low pressure, a large number of high-energy electrons and active particles are generated, chemical reaction can be promoted, NH3 serves as a nitrogen source, fluorine-rich molecules SF6 serve as a fluorine source, and NH3 reacts with low-fluorine sulfide generated by decomposition of SF6 through broken-bond decomposition under the action of DBD plasma, so that the sulfur-rich sulfur-rich nitrogen-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur-rich sulfur- and synthesizing a target product NF3.

The invention discloses an environment-friendly resource type sludge drying machine, and relates to the technical field of drying machines, the environment-friendly resource type sludge drying machine comprises a fixing frame, a drying assembly is arranged in the fixing frame, a replacement assembly used for replacing gas purification equipment is arranged at the position, close to the center, of the top of the fixing frame, and the replacement assembly comprises a driving motor; and the output end of the driving motor is fixedly connected with a rotating shaft. According to the environment-friendly resource type sludge drying machine, when sludge needs to be dried, external sludge is conveyed into the drying bin body, the sludge is heated, generated hot air is output outwards through a smoke pipe, the air is purified through activated carbon in a leak hole box, when the activated carbon needs to be replaced, a driving motor is started, and the activated carbon is replaced; according to the sludge drying machine, the problems that most sludge drying machines in the prior art are not provided with devices for automatically replacing gas purification equipment, and the labor intensity of workers is improved are solved.