68results about How to "No fluctuations" patented technology

The invention discloses an on-line soot blowing method and an on-line soot blowing device for a coal water slurry boiler. The bottom of a convection heating surface of the coal water slurry boiler is provided with a soot blowing device along the smoke circulating direction, the soot blowing device is provided with over two nozzles with oblique upward outlets along the smoke circulating direction, the soot blowing device can eject high-pressure steam or compressed air through the nozzles along the smoke circulating direction in turn, the high-pressure steam or the compressed air blows the inside of the heating surface of the boiler section by section in order and compels large granules deposited in a smoke passage of the heating surface of the boiler to elevate again due to the impact of strong airflow, and meanwhile the granules collide with the metal wall of the heating surface so that the dust adhered to the metal wall drops due to the action of an external force and is discharged along with the smoke together to achieve the soot blowing effect. The method and the device have the advantages of simple required equipment, low operating expense, high efficiency and low manpower intensity.

The invention discloses a new dry-state dummy device. The device mainly comprises a skeleton, joints, a water circulation heating system and a control system, wherein the physical dimensions of the skeleton and the joints of the human normal body can be stimulated from an appearance view, and the movement ability of the three joints including shoulders, the hip and the knee can be used as a main medium which can perform heat exchange with the environment. The water circulation heating system is of a core structure, and a mixed proportion of cold water and hot water with constant temperature can be controlled so that mixed water flows in a circulating pipeline; the heat energy is released to the environment under the assistance of the skeleton and the joints; the control system can be used for measuring the flow of the hot water and the cold water and the skin surface temperature of the dummy in real time; the flow of the hot water and the cold water and the skin surface temperature of the dummy can be converted into heat dissipating capacity by calculation, and the water circulation heating system can be assisted to control the temperature. The water circulation heating dry-state dummy can be applied to a calibration measurement instrument for simulating the human body temperature change and evaluating the indoor space temperature comfort. Compared with the traditional electric heating dummy, the water circulation heating dry-state dummy has the main advantages that the dummy can be adjusted in a cold and hot wide temperature area and is relatively easy and convenient to operate.

The invention provides a concrete mixer and relates to the technical field of concrete equipment. The concrete mixer comprises a foundation; the top of the foundation is fixedly provided with two bases; and the tops of the bases are fixedly provided with mixing jugs. Due to the match of a water pump, a water inlet pipe, a water distribution pipe, a cleaning pipe, a water spray tray, a spray head, a water transition block and a mixing rod, the mixing rod can drive the cleaning pipe to rotate inside the water transition block while rotating, and the water spray tray can synchronously rotate with a rotating rod; after being adsorbed into the water spray tray by the water pump, water is sprayed out of the spray head to ensure that the inner walls of the mixing jugs can also be synchronously cleaned during mixing operation of the concrete mixer, so that a material such as cement is prevented from being stuck to the inner walls of the mixing jugs; and after the concrete mixing operation is ended, the inner walls of the mixing jugs can be kept clean, cleaning the insides of the mixing jugs again by a worker can be avoided, and time and labor are saved.

The invention discloses a power distribution method, a base station, user equipment and a system and belongs to the field of communication. According to the method, periods are set for a downlink power distribution scheme, transmission power levels of all subframes in all periods are set, and periods of adjacent areas of an area are equal to or in an integral multiple relationship with the period of the area, so that the base station sends downlink signals to subframes at the same position in two adjacent periods by using power of the same level, power levels of interference signals of adjacent areas are stable when the user equipment (UE) receives downlink signals at subframes at the same position in all periods, the UE is free from fluctuation phenomena when channel quality indication is measured, the good resource allocation effect and the good throughput per hour are achieved, and simultaneously, the stable receiving performance of the UE at subframes at the same position in all periods is guaranteed.

The invention belongs to the field of screen exchangers, and particularly relates to a two-way switching type non-fluctuation screen exchanger. The two-way switching type non-fluctuation screen exchanger comprises a screen exchanger box; two independent filtering mechanisms are arranged inside the screen exchanger box; a main feeding inlet is formed in the front end face of the screen exchanger box; two feeding channels are led out of the main feeding inlet; each feeding channel communicates with one corresponding filtering mechanism; a main discharging outlet is formed in the rear end face of the screen exchanger box; two discharging channels are also led out of the main discharging outlet; each discharging channel communicates with one corresponding filtering mechanism; and the two feeding channels and the two discharging channels are each provided with a control valve assembly. The two-way switching type non-fluctuation screen exchanger has the advantages of exchanging screens conveniently without stopping, automatically exhausting air, and being accurate to control due to the small material leaking face, free of fluctuation and high in production efficiency.

A tongue plate stopper having a first member (10) with pins (12, 15) that penetrate a seatbelt webbing (30) and also having a second member (20) with holes (22, 25) through which the pins (12, 15) that penetrated the seatbelt webbing (30) penetrate. The pins (12, 15) penetrate through the respective corresponding holes (22, 25), and the seatbelt webbing (30) is held from both sides by the first member (10) and the second member (20).

The invention provides a device for preparing a chalcogenide infrared glass material, and relates to the field of chalcogenide glass preparation, mainly aiming at reducing stripes in the chalcogenide infrared glass material through the device provided by the embodiment of the invention. The mainly adopted technical scheme is as follows: the device for preparing the chalcogenide infrared glass material comprises a frame, a worktable, a first lifting driving device, a melting furnace, a lower furnace door and a positioning device, wherein the worktable is mounted on the frame; the first lifting driving device is used for driving the worktable to move up and down; the melting furnace is rotatably mounted on the worktable; the melting furnace is provided with a furnace chamber and a first opening is formed in the lower end of the melting furnace; the lower furnace door covers the first opening and is detachably connected with the melting furnace; the positioning device is detachably connected with the lower furnace door, and used for positioning the lower furnace door and keeping the position of the lower furnace door unchanged when an external ampoule bottle is quenched. The device is mainly used for preparing the chalcogenide infrared glass materials.

The purpose of the present invention is to provide a multilayer printed circuit board which mitigates the problems of "warping," "twisting" and "changing size" seen in printed circuit boards obtained by the conventional build-up method, and to provide a manufacturing method thereof. In order to achieve this purpose, a multilayer printed circuit board is adopted which is provided with two more build-up wiring layers on both sides of a core substrate, wherein said core substrate is provided with an inner layer circuit on both sides of the skeletal material-containing insulation layer, the insulation layer being 150μm thick or less, wherein the X-Y direction linear expansion coefficient of the skeletal material-containing insulation layer is 0ppm/°C-20ppm/°C, a first build-up wiring layer and a second build-up wiring layer provided on both sides of the core substrate comprise a copper circuit layer and an insulating resin layer having a X-Y direction linear expansion coefficient of 1ppm/°C-50ppm/°C, and the relation holds that the ratio of the value of the X-direction linear expansion coefficient (Bx) and the value of the Y-direction linear expansion coefficient (By) of the insulating resin layer is 0.9-1.1.

The invention discloses an adjustable carton packaging machine convenient to convey, and relates to the technical field of carton packaging. The adjustable carton packaging machine comprises a rack, wherein a conveying roller and a carton sealing device are arranged on the rack, the conveying roller is used for conveying a carton located on the conveying roller, the carton sealing device is used for sealing the carton through an adhesive tape, an opening is formed in the middle of the rack, a conveying device is arranged at the bottom of the rack at the opening, and the conveying device comprises a driving mechanism and a clamping mechanism. According to the adjustable carton packaging machine, when the carton moves to the position between two clamping blocks in the same group located above the opening, a conductive spring is electrified, the conductive spring is electrified and contracted, two sliding frames are pulled to be close to each other, then the two clamping blocks form a clamping effect on the carton, so that the carton is prevented from fluctuating in the transportation process, meanwhile, the carton packaging machine can be effectively adapted to cartons with different specifications and the length smaller than the initial distance between the two clamping blocks, and the adaptive conveying and packaging effect on express cartons with different specifications can be formed.

The invention relates to a microenvironment multi-field preservative and fresh-keeping method for grapes. The method comprises the following steps of (1) performing preservative intervention before grapes are picked; (2) pre-cooling a cold-chain logistics microenvironment temperature control box in time; (3) carrying out low-temperature high-pressure argon controlled atmosphere storage in the microenvironment controlled atmosphere box; and (4) carrying out intermittent atomization preservative treatment during storage. The fresh-keeping method is scientific and reasonable in design and efficient in fresh-keeping effect, the key technologies of preharvest corrosion prevention, cold-chain logistics, microenvironment controlled atmosphere and intermittent atomization corrosion prevention in the storage period are organically combined, the comprehensive grape fresh-keeping technology from preharvest to post-harvest storage is provided, efficient corrosion prevention of grapes is achieved, and the excellent quality is kept; and taking sun rose grape (a grape variety) for example, by using the fresh-keeping method, the storage period can reach 50 days, and the intact fruit rate is 98.6%.

The invention discloses a process for recovering and purifying annealing furnace exhaust gas and a device thereof. The process comprises the following steps: (1) carrying out condensation treatment of the annealing furnace exhaust gas, and collecting first exhaust gas; (2) carrying out first filtration treatment of the first exhaust gas, and collecting second exhaust gas; (3) supplementing nitrogen gas to the second exhaust gas, to obtain third exhaust gas; (4) carrying out second filtration treatment of the third exhaust gas, and collecting fourth exhaust gas; (5) successively carrying out heat treatment and deoxidation treatment of the fourth exhaust gas, and collecting fifth exhaust gas; and (6) carrying out adsorption treatment of the fifth exhaust gas, and collecting purified gas. Through the process and the supporting device, dust, emulsions, rolling oil, oxygen gas and other impurities in the annealing furnace exhaust gas can be effectively removed, the final purified gas meets protection gas requirements and can directly enter an annealing furnace for recycling, and the process and the device thereof have remarkable economic benefits and social environmental-protection benefits.

The invention provides a pressure relief valve, a respiratory support equipment air path and respiratory support equipment. The pressure relief valve comprises a valve body, wherein the valve body is of a hollow structure provided with an air inlet and a pressure relief opening, a diaphragm is arranged on the lower portion of the valve body, the air inlet communicates with the pressure relief opening through a space above the diaphragm, and a driving device is arranged on the lower portion of the diaphragm and used for driving the diaphragm to move up and down. The air inlet and the pressure relief opening are formed in the upper portion of the pressure relief valve at the same time, control over the air flow is achieved by controlling the distance between the diaphragm and the pressure relief opening, the pressure relief valve is used for being connected with a branch of the respiratory support equipment air path and connected with a main path of the air path through one air inlet, the air resistance of the respiratory support equipment air path can be reduced, pressure control is achieved by controlling the pressure relief magnitude of the pressure relief valve on the branch, two or more pressure relief valves are combined for use in the air path according to use requirements, the pressure control range is expanded, and the pressure control precision is improved.

The cool water tank filling water ball cock in the generator with the decompressing function is disclosed. The valve can push the steel ball by the floating ball driving the lever joining pole, so the supply water of the water tank can be controlled, the supplied water enters the water tank thought the decompressing room decompressing, because the supplied water flow can't form the big fluctuate to the liquid face of the water tank, the controlling of the supplying water is accurate, at the same time, the steel ball is adopt as the door body, the airproof effect is good, the phenomena of elevation ceaselessly because of the bad airproof can be avoided. The main component of the said valve is composed of the valve body, the floating ball, the connecting pole, the pushing poll and the steel ball, the frame is brief, the failure occurs rarely.

The invention relates to the technical field of equipment for cigarette tipping paper, in particular to an ink supply system for a tipping paper printing machine. The ink supply system comprises an ink tank, a stirring device, an ink roller, an impression roller, an ink scraping device, a first driving pump, an ink box and a controller; a sealing plate and a filter plate are arranged in the ink tank, and the ink tank is divided into an outer cavity, a stirring area and a conveying area; a through hole for communicating the outer cavity with the conveying area is formed in the sealing plate, the areas hardly affect each other, and therefore, printing ink does not fluctuatewhen stirred, so that the influence on the working ink roller is greatly reduced.

The invention discloses efficient environmental-friendly paint spraying equipment and belongs to the technical field of paint spraying. The efficient environmental-friendly paint spraying equipment comprises a mounting box, wherein a working box is connected to the top of the mounting box, a liquid storage tank is connected in the working box, a pressurizing pump is connected to the top of the liquid storage tank, a driving shaft is connected to the driving motor, a reciprocating lead screw and a first gear are connected to the driving shaft, a lifting plate is connected to the reciprocating lead screw, a paint spraying mechanism is arranged on the lifting plate, and the liquid storage tank communicates to the paint spraying mechanism. A turnplate is rotatably mounted on the top of the mounting box, a driving cavity is formed in the turnplate, a first gear ring is connected in the driving cavity, the first gear is engaged to the first gear ring, a rotating shaft is rotatably connectedto the turnplate, a placing table and a second gear are connected to the rotating shaft, a second gear ring is connected to the top of the mounting box, and the second gear ring is engaged to the second gear. The efficient environmental-friendly paint spraying equipment sprays a workpiece comprehensively and uniformly by matching an up-down moving nozzle with the rotating placing table, so that paint coagulation caused by single point spraying is prevented while steps are saved.

The invention provides a base of an electronic cigarette atomization device, the electronic cigarette atomization device applying the base and an electronic cigarette applying the atomization device.The base comprises a base body, a gas adjusting piece and a bearing base for installing the heating assembly, wherein the bearing base is fixedly mounted on the base body; a gas passing opening is formed corresponding to the heating assembly; the gas adjusting piece is movably installed on the base body or the bearing base, a first part of the gas adjusting piece is exposed to the outside to forma control part, a second part of the gas adjusting piece extends to cover the gas passing opening, and the control part drives the second part to move under the action of external force to adjust thegas flow conduction area of the gas passing opening. According to the base, the electronic cigarette atomization device and the electronic cigarette, the matching degree is high when the gas flow is adjusted through using the atomization device, and the taste stability is high.