33results about How to "Low power consumption for operation" patented technology

The capacitance of the capacitor with the constant capacitance is equivalently reduced in the capacitance of a resonant capacitor in a voltage control oscillator to increase the variable amount of the capacitance of the resonant capacitor, and to expand an oscillation frequency range. There are provided a differential negative conductance generator circuit having two resonation nodes for differential output, a differential resonant circuit having a variable capacitance that is controlled by voltage control and an inductance connected in parallel to each other, and a differential negative impedance circuit. A resonant circuit and a negative impedance circuit are connected between the resonation nodes. The capacitor with the constant capacitance that occurs between the resonation nodes is reduced by the negative impedance of the negative impedance circuit. The capacitor with the constant capacitance is represented by floating capacitors that occur between one of the resonation nodes and a ground potential and between the other resonation node and the ground potential, respectively.

A porous film-forming composition comprising (A) a curable silicone resin having a Mn of at least 100, (B) a micelle-forming surfactant, and (C) a compound which generates an acid upon pyrolysis remains stable during storage. The composition is coated and heat treated to form a porous film which has flatness, uniformity, a low dielectric constant and a high mechanical strength so that it is best suited as an interlayer dielectric film in the fabrication of semiconductor devices.

A waste electric appliance circuit board energy regeneration innocent treatment system comprises a pretreatment device, an alkalization incinerator, a multi-metal and oxide recycling and smoke purifying device, a recycled heat energy generating set and an electrical automatic control device. The pretreatment device is connected with the alkalization incinerator, the alkalization incinerator is connected with the multi-metal and oxide recycling and smoke purifying device and the recycled heat energy generating set, and the electrical automatic control device is connected with the pretreatment device, the alkalization incinerator, the multi-metal and oxide recycling and smoke purifying device and the recycled heat energy generating set. The technological devices are relatively simple, accurate in treatment, low in investment, low in operation power consumption and low in operation cost due to water utilization treatment; by means of the devices, resources can be fully utilized, and secondary pollution is avoided.

The invention relates to garbage burning equipment and particularly relates to a three-section type fire grate and a burning furnace with the same, i.e., garbage burning equipment with a forward-pushing three-section type cooling high-pressure loss fire grate and a method for burning garbage by using the garbage burning equipment. The garbage burning equipment comprises a drying section, a burning section and a burnout section; the forward-pushing fire grate comprises a sliding fire grate, a fixed fire grate and charging fire grates; the fire grate is composed of the sliding fire grate driven by a sliding fire grate beam, the fixed fire grate sliding on a supporting frame and fixed on the fixed fire grate beam and the charging fire grates arranged at tail ends of all the sections of fire grates; height differences exist among all the fire grate sections and among all regions; and the burnout fire grate is installed horizontally. With the adoption of the equipment, 5-6 months are taken as one repair cycle; in addition, the operating and maintaining costs are also reduced by about 80% than the initial cost, and the property is improved by 20% under the same cost.

The invention discloses a pre-purified selective water intake structure. The pre-purified selective water collecting structure comprises a vertical box type reinforced concrete water intake tower positioned in a lake reservoir, wherein a plurality of water intake ports are distributed on a body of the water intake tower in a layered way; a drain grating is arranged at the front end of the water intake port; an electric gate valve is arranged in the middle of the water intake port; a reciprocating corridor is arranged at the rear part of the water intake port; a water injecting pipe is arranged at the upper part of the reciprocating corridor; the upper part of the water injecting pipe is connected with a ground pump station; the reciprocating corridor is divided into three geocells; a medicament feeding pipe is arranged at the upper end of the first geocell and extends to the tail end of each water intake port; water passing channels are arranged on a reinforced concrete separation board between the second geocell and the third geocell; sludge grooves are respectively formed in the bottom of the geocell and that of the third geocell; sludge discharge pipes are arranged at the bottoms of the sludge grooves; electric gate valves are arranged on the sludge discharge pipes; sludge interface monitors are mounted at the upper parts of the sludge grooves; and a water draining steel pipe is arranged on the third geocell. According to the pre-purified selective water intake structure, raw water can be purified, the quality of water entering the plant is ensured, the operation load of a water plant is effectively reduced and the operation cost is reduced; and the pre-purified selective water intake structure is simple for operation and easy for management.

The present invention relates to the technical field of cycle heating control, in particular to a control method for a heating and pressure bearing system, which includes: judging whether the water temperature in the first hot water storage tank connected to the cold water supply end meets the first predetermined temperature, and if so, then The second hot water storage tank connected to the user end directly supplies water to the user end, if not satisfied, the heating water tank supplies water to the second hot water storage tank and the user end at the same time, until the first heat storage tank The water temperature in the water tank satisfies a first predetermined temperature, wherein the first hot water storage tank is connected to the second hot water storage tank. The invention provides a control method for a heating and pressure bearing system that can satisfy hot water supply at any time.

The invention discloses an industrial water chilling unit comprehensive energy-saving system and an intelligent control method thereof. The industrial water chilling unit comprehensive energy-saving system comprises a refrigerating circulating system, a waste heat recycling system, a waste heat re-rising system and a low-environment-temperature unit energy-consumption-free running system. According to the intelligent control method of the industrial water chilling unit comprehensive energy-saving system, a collecting unit, an input unit, a communication unit, a CPU processing unit, a driving unit, an output unit, a low-voltage power source and a selection work mode are arranged. According to the industrial water chilling unit comprehensive energy-saving system and the intelligent control method of the industrial water chilling unit comprehensive energy-saving system, the unit comprehensive performance can be effectively utilized, the requirements for industrial cooling and freezing can be met; meanwhile, waste heat can be recycled and re-rises, an environment temperature unit is used for carrying out energy-consumption-free running, the use temperature is met, the efficiency of the unit is improved, and the use condition of the unit is expanded; and the energy efficiency ratio of the unit is improved, the energy consumption is saved, and the economic cost is reduced.

The invention relates to a fiber reinforced plastic fan blade for centrifugal fans, structurally comprising a front disc (1) and a rear disc (2). 12 Blades (3) are evenly distributed between the front disc (1) and the rear disc (2), each blade (3) is in an arch form, a supplementary angle a for a tangential angle of a circle of the arch form is 157 degrees, a supplementary angle b for a tangential angle of a chord, passing through the arch form, of an inner circle of the rear disc (2) is 127 degrees, and an included angle c of intersecting tangents of the circle of the arch form and inner circle of the rear disc (2) is 150 degrees. The fiber reinforced plastic fan blade for centrifugal fans has the advantages that the dimensional precision is completely satisfactory to the design needs, a whole fan's running capacity is increased by higher than 30%, the fan blade has low concentricity and balance degree tolerance, the strength of the fan blade reaches that of steel, a test at a speed over 25% shows no damage, manufacture efficiency is 10-20 times as high as manual efficiency, the outline is smooth and even, and quality control precision reaches the unit of si.

The invention discloses an automatic oil / gas well hydrogen sulfide treatment device which comprises a static mixer, an oxidant inlet, a reduction pipeline, a pH sensor, a reducing agent inlet, a metering pump and a control cabinet, wherein an oxidant is fed into the static mixer from the oxidant inlet and is mixed with an oil / gas well product in the static mixer; fluid obtained after mixing flows into the reduction pipeline from the static mixer; the reducing agent fed from the reducing agent inlet is pumped into the reduction pipeline from the metering pump; the pH sensor is used for transmitting a detected pH value of the fluid in the reduction pipeline to the control cabinet; the control cabinet is used for controlling the rotation speed of the metering pump according to the pH value of the fluid, and used for adjusting the addition amount of the reducing agent. The automatic oil / gas well hydrogen sulfide treatment device has the characteristics of being small in investment, small in size, convenient to mount, low in operation cost, good in automatic control and the like, and the long-term problem that operators can be hurt by leakage as a pipeline is corroded by hydrogen sulfide in the oil exploitation industry can be solved.

The invention discloses an air energy water heater and a constant temperature water outlet control method thereof. The constant temperature water outlet control method comprises the following steps that firstly, the maximum set water outlet temperature Tsmax in a water using point is selected as the set water outlet temperature, and water outlet temperature Tc of a water tank of the water heater and water using temperature Ty of the water using point are detected; then the magnitude relation between the set water outlet temperature Tsmax and the water using temperature Ty is obtained with comparison, and a corresponding adjusting mode is selected; and finally the water using amount of the hot water output end of the water using point is adjusted to the maximum, the frequency P of an inverter compressor adapts to the maximum amount, and thus the water outlet temperature Tc of the water tank, the set water outlet temperature Tsmax and the water using temperature Ty are equal. The hot water using amount and the frequency of the compressor are adjusted by feeding back the water using temperature of the water using end, thus the water using temperature of the client is equal to the water outlet temperature of the water tank during stable unit operation, and water usage is more comfortable. The inverter compressor operates at optimal frequency all the time, and power consumption of aunit can be lowered.

The invention relates to household garbage incineration equipment, in particular to the improvement of the structure of a staggered forward-push fire grate. The staggered forward-push household garbage incineration fire grate structure comprises three sections, namely, a drying section, a combustion section and an ash section, wherein each section of the fire grate has an independent drive system and has the fall; the fire grate comprises fixed fire grate bodies, sliding fire grate bodies, covering fire grate bodies and discharging fire grate bodies; the sliding fire grate bodies and the fixed fire grate bodies are arranged in a staggered manner, the sliding fire grate bodies driven by sliding fire grate beam slide on a support frame, the fixed fire grate bodies on fixed fire grate beams are kept static, the covering fire grate bodies are arranged in the front of all the sections of fire grate, and the discharging fire grate bodies are arranged at tails of all the sections of fire grate. By the aid of the fire grate structure, the garbage loosening effect is better, combustion is more uniform, the combustion condition is easier to adjust and control, the running power consumption is low, so that the air volume and the air pressure are controlled to be more ideal, dust produced after combustion is low in concentration and large in particle size, the slag leakage rate is low, and the structure is more suitable for complex garbage components.