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40results about How to "Regulating load" patented technology

Process for carrying out strengthening circulation, stage grinding and quality improvement on lignite by utilizing superheated steam and system thereof

The invention relates to a process for carrying out strengthening circulation, stage grinding and quality improvement on lignite by utilizing superheated steam and a system thereof. The method comprises the following steps: (1) carrying out grinding on the raw material lignite; (2) burning one part of coal blocks/powder to produce high-temperature flue gas serving as a heat source and carrying out air separation and dring on the other part of coal blocks/powder requiring to be subjected to quality improvement; (3) in the process of air separation, adopting the high-temperature flue gas from the step (2), carrying out drying, separation and dust removal on the qualified coal blocks/powder conforming to the standard grain diameter after air separation, collecting the qualified coal blocks/powder, sending the qualified coal blocks/powder to the forming process, making the unqualified coal blocks/powder drop in a grinding ventilating device to carry out grinding and drying, then continuously completing deep drying by air separation and repeating the steps, wherein the oxygen content in the flue gas is less than 8 percent; and (4) sending one path of waste gas subjected to air separation and drying to the washing process and returning the other path of waste gas serving as a return tail gas part to the step (2) so as to prepare the high-temperature flue gas and carry out air separation. The process has the advantages of safety, energy saving, environment protection, high efficiency, stability and the like.
Owner:SHANDONG TIANLI DRYING TECH & EQUIP

Natural-gas low-temperature helium extracting system and method

The invention discloses a natural-gas flow-temperature helium extracting system and a natural-gas flow-temperature helium extracting method. According to the system and the method, the post-expansion and nitrogen circulating refrigerating two-column separating technology is carried out for fully recovering the cooling capacity of the device in order to pre-cool the natural gas which serves as the raw material, and thereby the system can be applied to the natural gas which has an extremely low content of helium, and has the characteristics of being low in energy consumption, high in helium recovery rate, small in investment, flexible in operation, and high in adaptability to variable working conditions. The system and the method have the positive effects that little helium in the helium-containing natural gas can be extracted by a pre-cooling system and a low-temperature rectifying system, an independent nitrogen circulating refrigerating system is adopted and used for supplying an ultralow-temperature cold source required in helium concentration, and the independent system is rich in adjusting means and cannot be influenced by upstream operations; and a post-expansion refrigerating system is adopted, so that the natural-gas low-temperature helium extracting system has the operation pressure higher than that in conventional technology, and higher concentration of the helium can also be obtained at the same refrigerating temperature.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Wind-solar complementary generation system and control method

The invention relates to a wind-solar complementary generation system. By a bran-new design framework, a photovoltaic power generation link is embedded into a wind power generation link, so that system output power fluctuation can be stabilized; a load in a microgrid can be adjusted; and the work efficiency of the generation system is effectively improved. The invention further relates to a control method for the wind-solar complementary generation system. The method comprises a combined control method for stabilizing power fluctuation and adjusting the load in the microgrid. By combination of a power prediction technology and a low-pass filter principle, the system generation power in the next 24 hours is predicted in advance by the perspectiveness of the prediction technology. Due to the uncertainty and the volatility of wind and solar radiation, a lot of high-frequency components exist in the actual generation power of the wind-solar complementary generation system. A predicted value is very close to an actual value, the high-frequency component in the predicted value is filtered out through a low-pass filter; and the processed predicted value is taken as a reference value of the system output power, so that the system generation power fluctuation can be effectively stabilized.
Owner:NANTONG UNIVERSITY

Speed changing system for wind power heating device

The invention relates to a speed changing system for a wind power heating device. Two discs for driving are arranged in a cavity respectively and connected with wind turbine blades and a stirring barrel respectively through shafts, when the disc which is connected with the wind turbine blades rotates to a certain rotating speed, the disc which is connected with the stirring barrel is driven to rotate under the action of fluid viscosity, and a fluid in the stirring barrel can be heated. The distance H between the two discs is 1-3mm and opposite surfaces of the discs are provided with blades. According to the speed changing system for the wind power heating device, the shaft of the disc which is connected with the wind turbine blades rotates to heat water in the cavity, when wind power is increased, the disc which is connected with the wind turbine blades can drive the disc which is connected with the stirring barrel to rotate, and a stirring plate in the stirring barrel can be driven through the shafts to heat the fluid. Therefore, flexible starting and simultaneous heating can be achieved, especially, the fluid in the cavity can be heated, and the two discs are slightly close so that the heating efficiency is high under extremely high friction function. When wind power is increased, the shafts drive the stirring barrel for heating, and therefore, loads are adjusted and wind energy can be fully utilized.
Owner:SHANGHAI UNIVERSITY OF ELECTRIC POWER

Embedded electric steaming box

The invention discloses an embedded electric steaming box comprising a box body and a box door which is installed at one side of the box body; the box body is provided with a steaming chamber therein; a heat insulation assembly is arranged between the steaming chamber and the box body; a part, positioned at one side of the steaming chamber, of the box body is provided with a groove; the groove is provided with a water tank therein; the bottom of the groove is provided with two parallel guide rails; the bottom of the water tank is provided with slideways which are corresponding to the guide rails; the water tank is installed in the groove through the slideways being embedded in the guide rails; one end of the bottom of the water tank is provided with a water outlet; the bottom of the steaming chamber is provided with a circular groove; the circular groove is provided with a heating plate therein; the bottom of one side surface of the heating plate is provided with a hidden water filling opening; the water outlet is provided with a water pump; the hidden water filling opening is connected with the water outlet through a pipeline; the bottom of the heating plate is provided with a heater; the heating plate is provided with a Hall element water level detector and a probe type water level detector; the box body is provided with a controller therein; the controller is connected with the Hall element water level detector, the probe type water level detector and the water pump; the steaming chamber is provided with a steaming plate assembly therein.
Owner:SUZHOU HEMEI ELECTRIC APPLIANCE TECH CO LTD

Method for evaluating adjustability of air conditioning unit participating in demand side response

The invention discloses a method for evaluating the adjustability of an air conditioning unit participating in demand side response. The method comprises the steps of building an indoor thermodynamic model; under the condition that the single air conditioner participates in the demand side response and does not participate in the demand side response, calculating the operation time and standby time of the single air conditioner according to the initial state of the single air conditioner; comparing the running time not participating in the demand side response and within the duration of the demand side response with the running time participating in the demand side response and within the duration of the demand side response; calculating the adjustability of the single air conditioning unit by combining the cooling power and the energy efficiency ratio of the air conditioning unit, the sum of the adjustability of all air conditioners in the air conditioning unit being the total adjustable capacity; and regulating and controlling the total adjustability on the aspect of power grid control. According to the invention, the adjustability of the air conditioning unit is accurately evaluated, and the high efficiency that the air conditioning unit participates in demand side response is achieved.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD HANGZHOU POWER SUPPLY CO

Portable torque wrench online detection device

The invention discloses a portable torque wrench online detection device. The portable torque wrench online detection device comprises a box body and a torque wrench detection device; the torque wrench detection device comprises a fixed outer sleeve and a rotary inner sleeve assembly, an elastic assembly is arranged in the rotary inner sleeve assembly, and a rotary lifting assembly is assembled at the top end of the rotary inner sleeve assembly in a threaded mode; and a lifting loading mechanism is arranged below the elastic assembly, a torque sensor is arranged in the lifting loading mechanism, and torque transmission assemblies are assembled in the rotary inner sleeve assembly and the lifting loading mechanism in an up-down sliding mode. According to the invention, the torque sensor is arranged in the lifting loading mechanism, the torque of the rotary lifting assembly is transmitted to the torque sensor through the torque transmission assemblies, and the torque sensor does not transmit force, so that the lifting loading mechanism does not affect the torque sensor when loading the elastic assembly; therefore, the torque sensor does not need to be mounted and dismounted during torque detection, and the detection is convenient.
Owner:河北省计量监督检测研究院廊坊分院

Natural-gas low-temperature helium extracting system and method

The invention discloses a natural-gas flow-temperature helium extracting system and a natural-gas flow-temperature helium extracting method. According to the system and the method, the post-expansion and nitrogen circulating refrigerating two-column separating technology is carried out for fully recovering the cooling capacity of the device in order to pre-cool the natural gas which serves as the raw material, and thereby the system can be applied to the natural gas which has an extremely low content of helium, and has the characteristics of being low in energy consumption, high in helium recovery rate, small in investment, flexible in operation, and high in adaptability to variable working conditions. The system and the method have the positive effects that little helium in the helium-containing natural gas can be extracted by a pre-cooling system and a low-temperature rectifying system, an independent nitrogen circulating refrigerating system is adopted and used for supplying an ultralow-temperature cold source required in helium concentration, and the independent system is rich in adjusting means and cannot be influenced by upstream operations; and a post-expansion refrigerating system is adopted, so that the natural-gas low-temperature helium extracting system has the operation pressure higher than that in conventional technology, and higher concentration of the helium can also be obtained at the same refrigerating temperature.
Owner:BC P INC CHINA NAT PETROLEUM CORP +1

Process for carrying out strengthening circulation, stage grinding and quality improvement on lignite by utilizing superheated steam and system thereof

The invention relates to a process for carrying out strengthening circulation, stage grinding and quality improvement on lignite by utilizing superheated steam and a system thereof. The method comprises the following steps: (1) carrying out grinding on the raw material lignite; (2) burning one part of coal blocks / powder to produce high-temperature flue gas serving as a heat source and carrying out air separation and dring on the other part of coal blocks / powder requiring to be subjected to quality improvement; (3) in the process of air separation, adopting the high-temperature flue gas from the step (2), carrying out drying, separation and dust removal on the qualified coal blocks / powder conforming to the standard grain diameter after air separation, collecting the qualified coal blocks / powder, sending the qualified coal blocks / powder to the forming process, making the unqualified coal blocks / powder drop in a grinding ventilating device to carry out grinding and drying, then continuously completing deep drying by air separation and repeating the steps, wherein the oxygen content in the flue gas is less than 8 percent; and (4) sending one path of waste gas subjected to air separation and drying to the washing process and returning the other path of waste gas serving as a return tail gas part to the step (2) so as to prepare the high-temperature flue gas and carry out air separation. The process has the advantages of safety, energy saving, environment protection, high efficiency, stability and the like.
Owner:SHANDONG TIANLI DRYING TECH & EQUIP

A kind of air circulation cross-section adjustment device

The invention discloses an air circulation cross-section adjusting device comprising a shell. The shell is provided with an air inlet and an air outlet, the air inlet is provided with an air adjusting door, a driving device, a driving crank, a crank connecting rod, a linkage crank, a moving part pull rod and a moving part are arranged inside the shell, the air adjusting door is connected with the driving device, one end of the driving crank is connected with the driving device, the other end of the driving crank is connected with the linkage crank through the crank connecting rod, and the linkage crank is connected with the moving part through the moving part pull rod. The air outlet is provided with an inclined reducing adjusting device, and the top end of the moving part is inserted into the inclined reducing adjusting device. The inclined reducing adjusting device is in the shape of a tube with taper. The air circulation cross-section adjusting device has the advantages that when combustor load adjustment is performed, air inlet amount is adjusted along with opening and closing of an air door plate of the air inlet, and size of the cross section of an air outlet of a flame tube can be adjusted synchronously, so that air speed at the flame tube is ensured to be basically unchanged during combustor load changing in size.
Owner:江阴德尔热能机械有限公司

Catalytic Partial Oxidation of Natural Gas and Carbon Dioxide Mixture to Syngas

The invention relates to a process for preparing synthesis gas through catalytic partial oxidation of natural gas and carbon dioxide mixed gas. The process comprises the following steps: dividing natural gas into two parts, wherein the first part of the natural gas is mixed with medium pressure steam and a first part of CO2 gas and is converted in a one-stage converter after heat exchange, and the second part of the natural gas is mixed with outlet converted gas of the one-stage converter and continues to react in a two-stage converter; outlet converted gas of the two-stage converter is transmitted to downstream side after condensate and CO2 are sequentially separated out of the outlet converted gas; the separated CO2 is compressed and then divided into two parts, wherein the second part of CO2 gas is mixed with medium pressure steam after heat exchange and small particles are filtered, then the second part of the CO2 gas is mixed with pure oxygen; molar concentration of oxygen in a second mixer is controlled at 20-35% (a critical oxygen state, oxygen enriched is less than or equal to 23%, and critical oxygen is less than 23%, which are inconsistent); the CO2 gas participates in heat exchange on a convection section of the one-stage converter and is burned together with converted gas in the two-stage converter, so as to supply heat energy required by reactions in the two-stage converter. The process disclosed by the invention solves the problems that conventional natural gas steam reformed synthesis gas is relatively high in H2 / CO ratio and fails to meet a requirement of carbonyl synthesis gas on a hydrogen-carbon ratio.
Owner:SINOPEC NINGBO ENG +2

Wear-preventive low-resistance high-efficiency Venturi scrubber for cold hydrogenation process

The invention provides a wear-preventive low-resistance high-efficiency Venturi scrubber for a cold hydrogenation process. The Venturi scrubber is characterized in that the Venturi scrubber comprises a vertical tubular shell and a spraying device; the shell comprises, from top to bottom, a gas inlet, a receiving section, a mixing section and a gas outlet which are successively connected; the diameter of the receiving section is greater than the diameter of the mixing section; the spraying device comprises a washing liquid pipe and three nozzles arranged at the receiving section; the washing liquid pipe is communicated with external washing liquid and comprises three outlets, wherein one of the outlets is formed in the central axis of the upper part of the receiving section, the other two outlets are symmetrically located in the lower part of the receiving section and the openings of the other two outlets are arranged along a horizontal direction; and each outlet is provided with one nozzle. According to the invention, through bumping between washing liquid sprayed by the nozzle at the upper part and washing liquid sprayed by the nozzles at the lower part, reaction gas undergoes adequate cooling and dedusting; and the washing liquid is employed at the inlet for capturing silicon powder particles, so impact wearing of the shell by the silicon powder particles is reduced; and the receiving section and the mixing section are provided with throats, so dedusting efficiency is improved by changing the flow velocity of the reaction gas.
Owner:宋一整
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