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36results about How to "Guaranteed not to overheat" patented technology

Precoated sand recycling system

The invention discloses a precoated sand recycling system which comprises an upright suspension combustion hearth and a horizontal type boiling bed, wherein the bottom of the horizontal type boiling bed is partitioned by lower partitioning plates so as to form a plurality of uniform bottom air distribution cabins; a hot air hole is formed in each bottom air distribution cabin; a fume exhaust hole for exhausting fume is formed in the horizontal type boiling bed; the fume exhaust hole in the horizontal type boiling bed is communicated with a fume exhaust pipeline through a flue; a draft fan is arranged at an end part of the fume exhaust pipeline; a dividing wall cooler is arranged below the air distribution cabins of the horizontal type boiling bed; the top end of the dividing wall cooler is connected with the horizontal type boiling bed through a sand falling tube; an air outlet is formed in the upper part of the dividing wall cooler; a sand outlet and an air inlet are formed in the bottom of the dividing wall cooler; the air outlet is connected with an air preheater through a first hot air tube; the inlet of the air preheater is communicated with the first hot air tube; the outlet of a gas conveying pipeline is communicated with hot air holes of the air distribution cabins through a second hot air tube.
Owner:西安合力汽车配件有限公司

Battery system and electric automobile

The invention provides a battery system and an electric automobile. The battery system comprises battery modules, wherein each of the battery modules comprises a plurality of battery module units; each of the battery module units comprises a plurality of batteries; a first heating pole and a second heating pole connected with the first heating pole are arranged on each of the batteries; each first heating pole is serially connected to a first branch; the second heating pole is serially connected to a second branch; the first branch is connected with a cathode of an external power supply; the second branch is connected with an anode of the external power supply; a temperature sensor is arranged in each of the battery module units and is used for detecting the temperature of the battery; an executing plate is used for collecting a temperature signal acquired by the temperature sensor. According to the battery system provided by the invention, the heating pole arranged on the battery can realize the heating of the battery. Such a heating manner increases the heating efficiency and guarantees the battery to be free from being overheated, and meanwhile, the increasing of the battery temperature can be completed within a short period of time, the battery temperature can reach the temperature for high-power charging and discharging, and the high power requirement of the whole vehicle is met.
Owner:BEIJING ELECTRIC VEHICLE

Pulverized coal burner

ActiveCN101446412AAchieve igniteEffective firePulverulent fuel combustion burnersCycloneCombustion chamber
A pulverized coal burner comprises at least one cyclone with a primary air powder tangential inlet line and a middle tapered shrinkage segment; an exhaust gas pipe having an exhaust gas adjusting air door and inserted on the top of the cyclone; a primary pulverized coal burning chamber and a secondary pulverized coal burning chamber arranged on the straight outlet segment of the cyclone; a micro-oil oil gun arranged on the top of the cyclone and inserted and penetrating the inlet of the exhaust gas pipe to the inlet of the primary pulverized coal burning chamber; a concentration ring and a rotation-eliminating blade arranged outside the throat at the interface of the shrinkage segment and the straight outlet segment of the cyclone; and a secondary air nozzle arranged at the outlet of the secondary pulverized coal burning chamber. The pulverized coal burner can achieve burn a great amount of pulverized coal by strengthened combustion and gradual amplification of trace oil by adopting the technical measures, such as ignition using micro-oil gasification oil gun, secondary pulverized coal burning, adjustable exhaust gas flow rate and pulverized coal concentration ratio, further pulverized coal concentration and rotation elimination, thereby achieving ignition of anthracite and lean coal, and achieving high oil saving rate. The coal burner is particularly suitable for W-shaped flame boiler.
Owner:EASTERN BOILER CONTROL CO LTD +1

Precoated sand hot-process regeneration equipment and regeneration method

InactiveCN103894538AIncrease the number of landingsExtended stayMould handling/dressing devicesAir preheaterFluidized bed
The invention belongs to the technical field of energy engineering, and relates to precoated sand hot-process regeneration equipment mainly utilizing a vertical fluidized bed furnace and a precoated sand hot-process regeneration method. The precoated sand hot-process regeneration equipment comprises a vertical fluidized bed furnace, a charging hopper, a nozzle for oppositely spraying coal gas, a flue, a smoke discharging pipeline, a dividing wall cooler and an air preheater, wherein the dividing wall cooler is arranged below the vertical fluidized bed furnace, the top end of the dividing wall cooler is connected with the vertical fluidized bed furnace through a sand falling pipe, the air inlet of the dividing wall cooler is connected with an air blower, the air outlet of the dividing wall cooler is connected with the air preheater through a hot air pipe I, the inlet of an air conveying pipe of the air preheater is communicated with the hot air pipe I, the outlet of the air conveying pipe is communicated with an air chamber through a hot air pipe II, and the flue is connected with the smoke discharging pipeline through a cavity of the air preheater. The precoated sand hot-process regeneration method comprises the steps: starting, feeding, and stabilizing. The precoated sand hot-process regeneration equipment is high in energy utilization rate, perfect in regeneration, simple in operation, and energy-saving and environment-friendly.
Owner:QINGDAO UNIV

Device for maintaining water level of smoke-impact water spinning type LNG (Liquefied Natural Gas) heating gasification furnace

The invention relates to an improved device of a smoke-impact water spinning type LNG (Liquefied Natural Gas) heating gasification furnace and particularly relates to a device for maintaining a water level of the smoke-impact water spinning type LNG heating gasification furnace. An annular pipe ring (1) is horizontally arranged on the top of a vertical combustor jacket (7) which consists of an inner barrel and an outer barrel, and a plurality of water replenishing holes (1a) are formed in the peripheral wall of the annular pipe ring (1); and the annular pipe ring (1) is connected to a water tank (4) through a water inlet pipe (3), and a water supply power pump is arranged on the path of the water inlet pipe (3). The device disclosed by the invention has the advantages of ensuring to continuously replenish water into the heating gasification furnace, keeping the water level of a water pool in the heating gasification furnace to be stabilized in an optimal position, most fully developing the effects of smoke impact, splashing and entraining of water drops, water mist and water vapor, and ensuring the normal operation of the heating gasification furnace. The device disclosed by the invention is capable of effectively cooling the wall of a combustor to ensure that the wall of the combustor is not overheated, obtaining novel available functions except for ensuring and maintaining the working water level of the heating gasification furnace, ensuring the normal and safe operation of the smoke-impact water spinning type LNG heating gasification furnace, and improving the operation efficiency of the furnace.
Owner:SHANGHAI UNIV OF ENG SCI

Coal gasification method

The invention provides a coal gasification method. The coal gasification method comprises the following steps: grinding the coal, drying, pressurizing and transporting the pulverized coal, and gasifying the pulverized coal in a gasification furnace. On the model selection of a coal grinder, primary air entering the coal grinder from a hot blast heater is annularly distributed, the temperature of the hot air entering the coal grinder is ensured to be higher than the conversion temperature of brown coal, the local surface of the brown coal is ensured not to be overheated, and the escape of volatile components in the brown coal can be reduced; the high-volatility brown coal is adopted as a raw material, the coal grinding system is controlled, the maximum concentration of oxygen is 4 percent, a new flow of low-pressure nitrogen is supplemented to a coal grinder sealing system, an nitrogen inlet in the system is also increased, the impact on a grinding roll is reduced, and the vibration of the coal grinder is reduced; the combustion temperature in the gasification furnace is 150 to 200 DEG C higher than the flowing temperature of lime-ash. Under the temperature and pressure, not only can the conversion rate of carbon in the gasification furnace be ensured to reach 99 percent, but also the lime-ash is good in flow characteristic.
Owner:铜陵市世纪朝阳数码科技有限责任公司

Coordinated control device for light field fused salt flow adjustment and defocusing adjustment of groove type photo-thermal power station

The invention relates to the technical field of solar groove type photo-thermal power generation, in particular to a coordinated control device for light field fused salt flow adjustment and defocusing adjustment of a groove type photo-thermal power station. The coordinated control device comprises a heat collecting field flow adjustment control unit, a heat collecting field defocusing adjustment control unit and a central coordinated control unit, wherein the heat collecting field flow adjustment control unit and the heat collecting field defocusing adjustment control unit are connected through a communication network and are connected with the central coordinated control unit. The heat collecting field flow adjustment control unit is used for controlling the flow of a cold tank outlet according to commands of the central coordinated control unit. By means of the coordinated control device, a photo-thermal power generation system is made to guarantee that fused salt stably flows without condensation when solar illumination intensity is poor according to solar illumination intensity differences in time, meanwhile, the temperature of the fused salt is controlled not to exceed the standard when the solar illumination intensity is too high, and therefore the photo-thermal power generation system can stably operate with high efficiency for a long time under complex and diversified weather conditions.
Owner:中国东方电气集团有限公司

Electromagnetic type water heater and electromagnetic resistance dual-core water heater

The invention discloses an electromagnetic type water heater and an electromagnetic resistance dual-core water heater, wherein the electromagnetic type water heater is formed by connecting a double-wall or sleeve or box-shaped magnetism-conductive water discharge body, a resonance coil and an integrated controller by virtue of power lines; and the electromagnetic resistance dual-core water heater is formed by connecting the water inlet of a resistance water heater and the water outlet of the electromagnetic type water heater, or placing the resistance water heater in the electromagnetic type water heater to be connected with and the integrated controller by virtue of power lines. For the electromagnetic type water heater and the electromagnetic resistance dual-core water heater, the magnetic energy in various directions of an electromagnetic field are scientifically utilized so that the energy efficiency is improved, and heat insulation is carried out on the resonance coil and the integrated controller by utilizing a heat insulation material and temperature difference of cold and hot water, and a dual-core simple and reliable technical structure in which a low-middle temperature zone is heated by electromagnetic energy and a mid-high temperature zone is subjected to resistance heating is adopted, thereby efficiently solving the problems that the resonance coil and the integrated controller are low in energy efficiency, low in hot water temperature, high in cost and the like, and can be easily damaged due to overheat. The electromagnetic type water heater and the electromagnetic resistance dual-core water heater have the obvious beneficial effects that the energy consumption is low, the cost is low, energy is saved, the hot water temperature is high, and more applications can be met.
Owner:陈土和

Combined-type cooling seal structure for high-pressure turbine rotor exterior ring

ActiveCN110847982APrecise control of thermal deformationAvoid direct contactBlade accessoriesLeakage preventionCombustion chamberJet flow
The invention discloses a combined-type cooling seal structure for a high-pressure turbine rotor exterior ring. The structure comprises a combustion chamber outer casing, the high-pressure turbine rotor exterior ring and auxiliary seal structures. Segmentation design is used for the high-pressure turbine rotor exterior ring; an opposite face of an upper blade of the high-pressure turbine rotor exterior ring is coated with a high-temperature resistant abrasive coating; impact cooling holes are formed along circumferences of the combustion chamber outer casing; and a connecting structure betweenthe combustion chamber outer casing and the high-pressure turbine rotor exterior ring is improved, so a cool air chamber is formed between the combustion chamber outer casing and the high-pressure turbine rotor exterior ring. In this way, the high-pressure turbine rotor exterior ring can be cooled efficiently through cool air jet-flow impacting. Through configuration of the auxiliary seal structures such as a seal ring and a seal baffle, cool air can be sealed, so a thermal load of a high-temperature component, namely the high-pressure turbine rotor exterior ring can be reduced; thermal deformation of the hot-end component can be controlled; a usage amount of the cool air is reduced; cooling effects are maximized; and the structure is more stable and reliable.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Boiler start-stop adjusting system and method for main-pipeline unit

The invention discloses a boiler start-stop adjusting system and method for a main-pipeline unit. The boiler start-stop adjusting system comprises a high-pressure cylinder of a first boiler, a first high-pressure heater of the first boiler, a first boiler economizer, a high-pressure cylinder of a second boiler, a first high-pressure heater of the second boiler, and a second boiler economizer, which are arranged in a high-pressure cylinder water outlet system, wherein the first-stage steam extraction of the high-pressure cylinder of the first boiler is connected to the first high-pressure heater of the first boiler; outlet water of the high-pressure heater is divided into two paths, the first path is connected into a water supply system of the first boiler economizer, and the second path is connected into a water supply system of the second boiler economizer through a water outlet pipeline; the first-stage steam extraction of the high-pressure cylinder of the second boiler is connected to the first high-pressure heater of the second boiler; and outlet water of the high-pressure heater is connected into the second boiler economizer. The system and the method can effectively solve the problem of uneven heating when the second boiler of the main-pipeline unit is started and stopped, coal consumption is reduced, and the flexibility of a thermal power generating unit participating in peak regulation is improved.
Owner:XIAN THERMAL POWER RES INST CO LTD

Pulverized coal burner

ActiveCN101446412BConcentration ratio is adjustableAchieve ignitePulverulent fuel combustion burnersCycloneCombustion chamber
A pulverized coal burner comprises at least one cyclone with a primary air powder tangential inlet line and a middle tapered shrinkage segment; an exhaust gas pipe having an exhaust gas adjusting air door and inserted on the top of the cyclone; a primary pulverized coal burning chamber and a secondary pulverized coal burning chamber arranged on the straight outlet segment of the cyclone; a micro-oil oil gun arranged on the top of the cyclone and inserted and penetrating the inlet of the exhaust gas pipe to the inlet of the primary pulverized coal burning chamber; a concentration ring and a rotation-eliminating blade arranged outside the throat at the interface of the shrinkage segment and the straight outlet segment of the cyclone; and a secondary air nozzle arranged at the outlet of the secondary pulverized coal burning chamber. The pulverized coal burner can achieve burn a great amount of pulverized coal by strengthened combustion and gradual amplification of trace oil by adopting the technical measures, such as ignition using micro-oil gasification oil gun, secondary pulverized coal burning, adjustable exhaust gas flow rate and pulverized coal concentration ratio, further pulverized coal concentration and rotation elimination, thereby achieving ignition of anthracite and lean coal, and achieving high oil saving rate. The coal burner is particularly suitable for W-shaped flame boiler.
Owner:EASTERN BOILER CONTROL CO LTD +1

Method and system for olefin polymerization temperature control

The invention relates to a method and a system for olefin polymerization temperature control. The method and the system for the olefin polymerization temperature control aims at solving the problems that a polymerization reaction in the prior art is severe, temperature fluctuation is large in the process of heating and heat dissipation and bad influences on performance and quality of a polyolefin product are caused due to lag of the temperature. An artificial intelligent method is adopted. A manipulated variable of the method is the temperature. According to a designed intelligent controller, in the process of the polymerization reaction, opening time of a hot water valve, an inner cold water valve and an outer cold water valve is controlled according to deviation and slope rate of the temperature fluctuation so that accurate control of the polymerization temperature and continuously automatic control of three steps of temperature rising, temperature maintaining and temperature dropping are achieved in the process of an intermittent polymerization reaction. The invention further provides a control device for the olefin polymerization reaction. According to application, control requirements for a temperature parameter of the olefin polymerization device can be completely satisfied according to the intelligent control method, dynamic property of the system is improved and the performance and the quality of the olefin product are improved.
Owner:CHINA PETROLEUM & CHEM CORP +1

Device for maintaining water level of smoke-impact water spinning type LNG (Liquefied Natural Gas) heating gasification furnace

The invention relates to an improved device of a smoke-impact water spinning type LNG (Liquefied Natural Gas) heating gasification furnace and particularly relates to a device for maintaining a water level of the smoke-impact water spinning type LNG heating gasification furnace. An annular pipe ring (1) is horizontally arranged on the top of a vertical combustor jacket (7) which consists of an inner barrel and an outer barrel, and a plurality of water replenishing holes (1a) are formed in the peripheral wall of the annular pipe ring (1); and the annular pipe ring (1) is connected to a water tank (4) through a water inlet pipe (3), and a water supply power pump is arranged on the path of the water inlet pipe (3). The device disclosed by the invention has the advantages of ensuring to continuously replenish water into the heating gasification furnace, keeping the water level of a water pool in the heating gasification furnace to be stabilized in an optimal position, most fully developing the effects of smoke impact, splashing and entraining of water drops, water mist and water vapor, and ensuring the normal operation of the heating gasification furnace. The device disclosed by the invention is capable of effectively cooling the wall of a combustor to ensure that the wall of the combustor is not overheated, obtaining novel available functions except for ensuring and maintaining the working water level of the heating gasification furnace, ensuring the normal and safe operation of the smoke-impact water spinning type LNG heating gasification furnace, and improving the operation efficiency of the furnace.
Owner:SHANGHAI UNIV OF ENG SCI

Computer room air conditioner protection protection shutdown self-diagnosis self-starting device

The invention discloses a self-diagnosis and self-starting device for the protection and protection of an air-conditioner in a machine room, which is characterized in that it has an air-conditioning protection self-diagnosis and self-starting module connected to the main control board of the air conditioner, and the air-conditioning protection self-diagnosis and self-starting module described in the timing circuit Detect the compressor temperature sensor, discharge pressure sensor signal and compressor stop signal respectively. When the above signals appear at the same time, it means that the air conditioner is shut down due to high pressure protection, thereby triggering the timing circuit. When the time is up, the air conditioner protection self-diagnosis and self-starting module will restart. Detect the signals of the compressor temperature sensor and the exhaust pressure sensor, and if the signals return to normal, power off and reset the main control board, and start the air conditioner. It can automatically detect the shutdown status, and can automatically reset and start the machine. Resetting the air conditioner in time can ensure that the electronic components in the computer room do not overheat, and ensure the safe and stable operation of communication equipment.
Owner:NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER

Portable sf6 cylinder heating system

The invention discloses a portable type SF6 gas cylinder heating system. A control module, a display module, an alarm generating module, a Flash information storage and a temperature sensor are arranged in a housing, wherein a state indicator lamp is arranged on the housing; an interface module is arranged on the control module; the heating module adopts an industrial hot-air blower; the control module is connected with the industrial hot-air blower through a serial interface; when the temperature is detected to be a normal temperature, a power supply of the industrial hot-air blower is opened by the control module to control the hot air blower to work, and the state indicator lamp gives green light; when the temperature is detected to exceed a line-crossing value, the alarm generating module alarms, the state indicator lamp gives red light, the red light is displayed on the display module, and the power supply of the industrial hot-air blower is switched off by the control module. According to the portable type SF6 gas cylinder heating system, constant control on temperature is realized by virtue of the control module, the industrial hot-air blower and the like, so that the gas charging efficiency is improved, the gas residual rate is reduced, and potential safety hazards can be avoided.
Owner:STATE GRID CORP OF CHINA +1

Optical field molten salt flow and defocus adjustment coordination control device for trough photothermal power station

The invention relates to the technical field of solar groove type photo-thermal power generation, in particular to a coordinated control device for light field fused salt flow adjustment and defocusing adjustment of a groove type photo-thermal power station. The coordinated control device comprises a heat collecting field flow adjustment control unit, a heat collecting field defocusing adjustment control unit and a central coordinated control unit, wherein the heat collecting field flow adjustment control unit and the heat collecting field defocusing adjustment control unit are connected through a communication network and are connected with the central coordinated control unit. The heat collecting field flow adjustment control unit is used for controlling the flow of a cold tank outlet according to commands of the central coordinated control unit. By means of the coordinated control device, a photo-thermal power generation system is made to guarantee that fused salt stably flows without condensation when solar illumination intensity is poor according to solar illumination intensity differences in time, meanwhile, the temperature of the fused salt is controlled not to exceed the standard when the solar illumination intensity is too high, and therefore the photo-thermal power generation system can stably operate with high efficiency for a long time under complex and diversified weather conditions.
Owner:中国东方电气集团有限公司

Film-coated sand thermal regeneration equipment and its regeneration method

InactiveCN103894538BIncrease the number of landingsExtended stayMould handling/dressing devicesAir preheaterFluidized bed
The invention belongs to the technical field of energy engineering, and relates to precoated sand hot-process regeneration equipment mainly utilizing a vertical fluidized bed furnace and a precoated sand hot-process regeneration method. The precoated sand hot-process regeneration equipment comprises a vertical fluidized bed furnace, a charging hopper, a nozzle for oppositely spraying coal gas, a flue, a smoke discharging pipeline, a dividing wall cooler and an air preheater, wherein the dividing wall cooler is arranged below the vertical fluidized bed furnace, the top end of the dividing wall cooler is connected with the vertical fluidized bed furnace through a sand falling pipe, the air inlet of the dividing wall cooler is connected with an air blower, the air outlet of the dividing wall cooler is connected with the air preheater through a hot air pipe I, the inlet of an air conveying pipe of the air preheater is communicated with the hot air pipe I, the outlet of the air conveying pipe is communicated with an air chamber through a hot air pipe II, and the flue is connected with the smoke discharging pipeline through a cavity of the air preheater. The precoated sand hot-process regeneration method comprises the steps: starting, feeding, and stabilizing. The precoated sand hot-process regeneration equipment is high in energy utilization rate, perfect in regeneration, simple in operation, and energy-saving and environment-friendly.
Owner:QINGDAO UNIV
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