37results about How to "Enable centralized control" patented technology

The invention discloses six non-isolated three-port direct-current converters and a control method and circuit thereof. The converter is characterized in that a source electrode of a switch tube S1 isconnected with an anode of a diode D2, a cathode of the D2 is connected with a source electrode of a switch tube S2 and one end of an energy storage inductor L, and a drain electrode of the S2 is connected with a cathode of a diode D1. The control method comprises steps that a sampling value and a reference value of an input voltage of the direct-current converter are compared with sawtooth wavesafter error amplification, and a driving signal is generated to control the S1; moreover, a sampling value and a reference value of a load voltage of the direct-current converter are compared with sawtooth waves after error amplification, and a driving signal is generated to control the S2. The control circuit is characterized in that output ends of two error amplifiers are connected with the input ends of two comparators respectively, sawtooth waves are further inputted into the two comparators, and output ends of the two comparators are used for being connected with a grid electrode of theS1 and a grid electrode of the S2 respectively. The converters and the control method and circuit thereof are advantaged in that that power management and control among an input source, energy storageequipment and a load can be realized by adopting a single converter.

The invention discloses six two-switch three-port DC converters and their control methods and circuits. One of them, switch tube S 1 The source is connected to the switch S 2 the drain, S 2 The source is connected to the diode D 2 The cathode and one end of the energy storage inductor L, D 2 The anode of the diode is connected to D 1 of the cathode. The control method is that the sampling value and reference value of the input voltage of the DC converter are amplified by the error and then compared with the sawtooth wave to generate a driving signal to control the S 1 ; At the same time, the sampling value and reference value of the load voltage of the DC converter are amplified by the error and then compared with the sawtooth wave to generate a driving signal to control S 2 . The control circuit is that the output terminals of the two error amplifiers are respectively connected to the input terminals of the two comparators, and the two comparators also input the sawtooth wave, and the output terminals of the two comparators are respectively used to connect the S 1 and S 2 the grid. The beneficial effect of the invention is that the power management and control between the input source, the energy storage device and the load can be realized by using a single converter.

The invention discloses a basic sewage treatment process of the mining selecting industry. The basic sewage treatment process comprises a core sewage treatment process and postposition auxiliary steps, in the whole technological process, control is conducted based on pH values of water of all technological points, and setting of all parameters can be conducted according to the requirements of inlet water indexes and outlet water indexes. By means of the basic sewage treatment process, the following representative characteristics and advantages of ion separation medicament of the applicant in actual application can be guaranteed, wherein quantity of reagent is little (the quantity is 10-300 g per ton of water), direct solid drug delivery is conducted, dilution is not needed, sewage water is treated in real time, buffering is not needed, the reaction time is 3-15 minutes, the removal rate of substances contained in water is as high as over 80%, various sewage treatment and discharging indexes of the nation can be met, water obtained after treatment is colorless, odorless, and free of secondary harmful chemical matter, and the sludge generated through flocculation is low in water content(less than 35%), free of foul smell, free of adhesion and the like.

The invention discloses a desulfurization wastewater treatment fundamental technology. The desulfurization wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameter are set according to requirements of water inflow and outflow indexes. According to the desulfurization wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that the quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, treated water is colorless, odorless and free of secondary harmful chemicals, and the sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a coal chemical industry wastewater treatment fundamental technology. The coal chemical industry wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the coal chemical industry wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, and treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a domestic wastewater treatment fundamental technology. The domestic wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the domestic wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that the quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

The invention discloses a fundamental technology for landfill leachate treatment. The fundamental technology for landfill leachate treatment comprises the steps of pre-stage assisting, a primary sewage treatment core process, middle-stage assisting, a secondary sewage treatment core process and post-stage assisting, the whole technological process is controlled based on the pH values of water bodies at process points, and various parameters can be set according to the requirements of water inlet and outlet indexes. The fundamental technology can fully guarantee the representative features and advantages of an ion separation agent of an applicant in practical application as following: the dosage is few (10-300 grams for per ton of water), dilution is not needed for direct solid feeding, sewage is treated in real time without temporary storage (the response speed is 3-15 minutes), the water content removal rate is above 80%, the fundamental technology can be in line with and meet various national sewage treatment and discharge indexes, treated water is colorless, odorless, free of secondary harmful chemical substances and flocculation, and produced sludge is low in moisture content (< 35%), free of foul smell, non-sticky and the like.

The invention discloses a sewage treatment foundation technology of the pulping and papermaking industry. The sewage treatment foundation technology comprises the steps of front auxiliary, a first-stage sewage treatment core technology, middle auxiliary, second-stage sewage treatment core technology and rear auxiliary; in the whole technology process, controlling is performed on the basis of pH values of a water body at all technological points, and various parameters can be set according to the requirements of feed water and yielding water indexes. According to the sewage treatment foundation technology of the pulping and papermaking industry, it can be guaranteed that an ion fractionation medicament has the following representative characteristics and advantages in practical application that the dosage is little (10-300 g per ton of water), the medicaments are directly dosed in a solid state without needing to be diluted, sewage is treated in real time without storage (the reaction time is 3-15 minutes), and the removing rate of water body contents is more than 80%; in addition, the national various sewage treatment discharge indexes are followed and met, treated water is colorless and free of abnormal odor and secondary harmful chemical substances, and sludge generated through flocculation is low in water content (smaller than 35%), odorless, not sticky and the like.

The invention discloses a sewage treatment core process. The sewage treatment core process comprises four conventional basic links including regulation, reaction, flocculation as well as filtration and sedimentation. In the whole process, control is performed on the basis of pH values of water bodies at process points, and various parameters can be set according to requirements of water inlet and outlet indexes. Following representative characteristics and advantages of an ion separation chemical of an applicant in actual application can be guaranteed sufficiently: the chemical feeding amount is small, 10-300 g of the chemical is fed per ton of water, solid-state chemical is fed directly without dilution, sewage is treated in real time without caching (the reaction speed is 3-15 min), the water body content removal rate is higher than 80%, various national sewage treatment emission indexes can be obeyed and met, water after treatment is colorless and free of off-smell and secondary hazardous chemical substances, and sludge produced through flocculation has low water content (smaller than 35%), is free of stink, is not adhesive and the like.