84results about How to "Improve working environment temperature" patented technology

The invention relates to an LED (Light Emitting Diode) illumination intelligent control system which comprises a synchronous rectification unit used for providing direct-current power for at least two intelligent power control units, wherein the output end of each intelligent power control unit is connected with a corresponding LED light group unit via an electric wire; and the synchronous rectification unit is connected with each intelligent power control unit by a high-voltage direct-current bus. In the intelligent control system, stable constant-voltage direct current is provided for an LED illumination system by the synchronous rectification unit, so that the whole illumination system can operate under high power factor with less harmonic wave. the corresponding LED light group units are dynamically and precisely dimmed by the intelligent power control units, and the LED operation situation is detected in real time and communication with an external control center is carried out. The intelligent control system has the characteristic of reasonable structure, and is convenient to control, the working environment temperature of an LED light group can be improved, and the reliability and the service life of an LED illumination light can be improved.

The invention relates to a method for a double-side interconnection silicon-based IGBT module employing low-temperature sintered nano-silver, and the module consists of a power terminal, an upper DBCsubstrate, a lower DBC substrate, a nano-silver soldering paste, a silicon-based IGBT chip, a buffering layer, a thick aluminum wire, a soldering lug, a silicon-based diode chip, silica gel and moldedresin. The lower surface of the silicon-based IGBT chip, the lower surface of the silicon-based diode chip and the lower surface of the buffering layer are connected with the lower DBC substrate through nano-silver. Meanwhile, the upper surface of the silicon-based IGBT chip, the upper surface of the silicon-based diode chip and the upper surface of the buffering layer are connected with the upper DBC substrate through nano-silver. The connection strength of the chip and the buffering layer with the DBC substrates can reach 30MPa. The silicon-based IGBT chip and the silicon-based diode chip of the lower DBC substrate and the upper surface of the buffering layer are connected with the buffering layer of the upper DBC substrate and the upper surfaces of the silicon-based IGBT chip and the silicon-based diode chip through an SnAgCu soldering lug or an SnAg soldering lug, thereby obtaining the double-side interconnection silicon-based IGBT module.

The invention discloses cement production line fine powder grinding equipment which comprises an inclined spiral feed device, a drying device, a hot air device, a pulverizer, a powder screening machine and a fine powder collector which are sequentially connected, wherein the pulverizer comprises a discharge pipe, a primary fan, a grader, a swing roller, an abrasive disk, a speed reducer and a motor which are sequentially connected from top to bottom; the inclined spiral feed device comprises a horizontal feed inlet, an obliquely upward spiral transmission section, a horizontal transmission section and an inclined feed section which are sequentially connected; the obliquely upward spiral transmission section is connected with the drying device, and the horizontal transmission section is connected with the hot air device; furthermore, the temperature of hot air blown out of the hot air device is kept below 45 DEG C; in addition, the pulverizer is connected to the top position of the powder screening machine through the discharge pipe; a smashing device is further arranged at the bottom of the powder screening machine, and the powder screening machine is connected with the fine powder collector through a collection pipe which is arranged at the top of the powder screening machine. The cement production line fine powder grinding equipment has the advantages of high production efficiency, higher cement evenness and higher fineness quality.

The invention provides a computer power supply control method and device. The method comprises the following steps of: acquiring power supply information of a computer in a normal working state, wherein the power supply information comprises battery power supply and external power supply; Obtaining a discharge current or a battery temperature of the battery power supply when the power supply information is supplied to the battery power supply, and controlling the central control unit to operate at a first working frequency or a second working frequency according to the discharge current or thebattery temperature; When the power supply information is supplied to an external power supply, controlling the central control unit to operate at a first operating frequency. The invention can adjust the working frequency of the central control unit according to the discharge current of the battery power supply or the battery temperature, so that the computer system can be operated stably for along time under special circumstances, and the important data loss or damage caused by the sudden power failure of the computer system can be avoided.

The invention discloses a brake pad for a disc brake. The brake pad comprises a friction layer and a steel backing layer, the steel backing layer is positioned above the friction layer and adhered to the same through a metal binding agent, a braking face of the friction layer is provided with a plurality of arc grooves which are distributed transversely and penetrate through the friction layer, and skewed slots which are distributed obliquely, longitudinally and uniformly and lead to the edge of the friction layer are formed in the outer sides of the arc grooves on two sides. A layer of rhombus net grooves is graved on a face, fitting with the friction layer, of the steel backing layer. Two cylindrical bosses are symmetrically arranged on the upper surface of the steel backing layer, and the outer edges of the bosses are provided with asterisk-shaped reinforcing ribs. The brake pad for the disc brake has the advantages of vibration reduction, noise suppression, long service life, high stability, good heat effect, high safety, effectiveness in improvement of safety of the brake and good application prospect.

The invention discloses a ceramic sensitive core based on high temperature co-sintering and a preparation method thereof, and belongs to the technical field of high temperature sensors. The ceramic sensitive core and the preparation method solve the problems that an existing varnished wire preparation technology for a sensor core cannot meet the requirement of an ultra-temperature measurement environment, and the precision of a sensor prepared by adopting the existing preparation technology is low. According to the ultra-temperature displacement sensor, namely the ceramic sensitive core basedon high temperature co-sintered ceramic, N layers of functional layer substrates are subjected to high temperature co-sintering, the ceramic sensitive core is formed, and N is a positive integer greater than or equal to 2; the functional layer substrates comprise ceramic substrates, spiral coils, filling ceramic and signal leading-out holes; the ceramic substrates are rounded, the spiral coils ina spiral shape are printed on the ceramic substrates, and the filling ceramic is overprinted on blanks of the ceramic substrates; the rotation directions of the spiral coils on the adjacent functionallayer substrates are different. The ceramic sensitive core based on high temperature co-sintering and the preparation method thereof are applied to preparation of the high temperature sensors.

The invention provides an air source heat pump and a heat supply system. The air source heat pump comprises a shell and an evaporator fixed in the shell, wherein the shell is fixedly provided with a refrigerant outlet and a refrigerant inlet. The air source heat pump is characterized by also comprising a refrigerant radiating device used for optimizing the external working environment condition and temperature of the evaporator by utilizing afterheat of the refrigerant subjected to heat exchanged and flowing back to the air source heat pump, wherein the refrigerant radiating device is positioned on one side of the evaporator and is provided with a refrigerant input port and a refrigerant output port; and the refrigerant output port is communicated with the refrigerant inlet. The refrigerant radiating device arranged on one side of the evaporator is used to heat external air close to the evaporator by utilizing the afterheat of the refrigerant flowing back to the air source heat pump so as to optimize the working environment condition and temperature of the evaporator and the air source heat pump and realize and improve the heating efficiency of the air source heat pump.

The invention provides a preheating and drying device for sterilizing filling equipment. The preheating and drying device for sterilizing the filling equipment comprises a sterile hot air conveying pipeline, wherein an air filter and a heater are arranged on the pipeline; the air outlet end of the pipeline is connected with an air injection unit; the air injection unit comprises an injection pipe; a plurality of injection nozzles are arranged on the injection pipe; and the air inlet end of the injection pipe is connected with the air outlet end of the pipeline. By the preheating and drying device provided by the invention, the inner surface of a bottle body is subjected to preheating before sterilization; through the preheating, the bottle body can provide a good operating ambient temperature for injecting a sterilization medium; the activity of the sterilization medium is improved; the inner surface of an empty bottle which is moisture and has a residual sterilization medium is subjected to drying after the sterilization, so that the evaporation rate of the sterilization medium can be accelerated; therefore, the inner surface of the bottle body can be dried; and moreover, the effect of reducing the residual amount of the sterilization medium rapidly is achieved.

The invention discloses a water cooling device for an engine, comprising: a cooling main body, a cooling fin and a radiator, the cooling main body is provided with an accommodation cavity for placing the engine; the outer peripheral surface of the cooling main body is provided with a plurality of The annular slots arranged at intervals in the line direction; one side of the heat sink is inserted into the annular slot; the cooling body is located on the outer periphery of the housing cavity, and the first flow channel and the second flow channel are arranged in sequence from the side close to the housing cavity to the side away from the housing cavity. Two flow channels; the first flow channel and the second flow channel are respectively provided with a liquid inlet and a liquid outlet, and the liquid inlet of the first flow channel is connected with the outlet of the radiator, and the liquid outlet of the first flow channel is connected with the second flow channel The liquid inlet of the channel is connected; the liquid outlet of the second channel is connected with the inlet of the radiator, and a plurality of heat conduction fins are arranged at intervals along the flow direction of the medium in the second flow channel, and each heat conduction fin is provided with a channel for the medium to pass through. hole. The invention has simple structure and fast heat dissipation speed for the cooling liquid after absorbing heat.

The invention relates to a mine hoist, and particularly relates to a large external rotor permanent magnet synchronous motor permanent magnet rotor wireless temperature monitoring device comprising astator carrier which is arranged on the motor spindle and a stator which is arranged on the stator carrier. The external rotor is composed of a rotor shell and permanent magnet poles. The rotor shellsleeves the stator. The permanent magnet poles are installed on the internal wall of the rotor shell. The two ends of the rotor shell are provided with end plates. The end parts of the permanent magnet poles are provided with sensors which are connected with one end of a shielding signal line. The other end of the permanent magnet penetrates through the end plates to be connected with a sampling monitor. The sampling monitor is installed on the external side of the end plates. The sampling monitor comprises a micro-processing unit and a wireless transmitting unit. The wireless transmitting unit is matched with the wireless receiving unit in the control room. The problem of difficulty of temperature measurement of the large synchronous motor permanent magnet rotor can be effectively solved,wireless temperature measurement transmission is not interfered by the magnetic field and the working environment temperature of the micro-processing unit chip is great.

The invention relates to a communication base station, in particular to a communication base station which can automatically control and regulate the temperature in a machine room. The automatic temperature control communication base station comprises a machine room and an angle iron communication tower, wherein a ventilation duct is arranged between the machine room and the angle iron communication tower. The ventilation duct is of a tubular structure with two open ends, one end of the ventilation duct is communicated to the upper space of the machine room, the other end of the ventilation duct is arranged at the upper part of the angle iron communication tower, and a ventilation duct body is fixed on steel frames of the angle iron communication tower. A wind guide duct is also embedded in the machine room, the wind guide duct is a U-shaped duct with two open ends, the lower part of the ventilation duct is embedded under the ground, the exit of one end of the upper part of the ventilation duct is arranged in the machine room, and the other end of the upper part of the ventilation duct is arranged outside the machine room in a penetrating way and extends downwards to form a downward opening. The automatic temperature control communication base station has the advantages of energy conservation, consumption reduction, low operating cost, and wide application range. The temperature in the machine room of the base station can be automatically controlled. The automatic temperature control communication base station can not only be used for adjusting the temperature of the mobile communication base station, but also can be used in places such as factories and workshops which need temperature regulation.

The invention discloses an immersed combustor. The combustor comprises a furnace housing, wherein the furnace housing comprises a main combustion cone, a top volute and a cooling water jacket, wherein the main combustion cone is integrally communicated at the top surface of a bottom volute, the top volute is provided with a main tangential air inlet and is fixedly arranged at the upper end of the main combustion cone, and the cooling water jacket encircles the peripheral surface of the main combustion cone and is used for cooling the main combustion cone by circulating water; the bottom volute is internally provided with a combustion nozzle which is respectively connected with an auxiliary air inlet pipe and a fuel supply pipe, a circulation cooling water coiled pipe is sleeved on the periphery of the combustion nozzle, and an inner fuel passageway of the combustion nozzle is provided with an atomizing water pipe which jets water mist outwards to cool the combustion nozzle; a smoke removal channel is formed in the bottom volute in a tangent direction, the furnace housing is immersed and arranged in cooling bath water in such ways of feeding air at the upper part of the furnace housing and discharging smoke at the lower part of the furnace housing, the immersed depth of the furnace housing in the cooling bath water is more than the height of the furnace housing multiplied by one second, and the horizontal plane of the cooling bath water is lower than the edge of the upper opening of the cooling water jacket.

The invention discloses a fast sterilization device for sterile operation inoculation instruments. The fast sterilization device comprises a power control system arranged in an upper shell and an electromagnetic induction system arranged in a lower shell, wherein the upper shell and the lower shell are connected and fixed by connecting columns; the electromagnetic induction system comprises a ceramic cylinder, an induction coil and a temperature sensor; the inner part of the ceramic cylinder is used for placing the instruments to be sterilized, the induction coil wound at the periphery of theceramic cylinder and the temperature sensor is arranged in the ceramic cylinder; the power control system comprises a power supply, a controller, a high-voltage driving plate, a voltage-reducing module and a relay group; the temperature sensor is electrically connected with the controller; the negative electrode of the high-voltage driving plate is connected with the negative electrode of the power supply, and the positive electrode of the high-voltage driving plate is connected on the relay group; the relay group is connected with the positive electrode of the voltage-reducing module and is electrically connected with the controller. The fast sterilization device for the sterile operation inoculation instruments and a use method thereof have the beneficial effects that the working efficiency can be improved, the types of the inoculation instruments to be sterilized are expanded, a part of instruments are prevented from being damaged, the energy consumption can be reduced and the safeproduction is achieved.

The invention provides an electric fracturing switch wireless electric control system comprising a master controller, a motor driving module, a motor round number detecting circuit module, and a computer. The motor round number detecting circuit module is connected with the master controller and detects the number of rotated rounds of a motor shaft. The master controller is connected with the motor driving module, receives instructions transmitted by the computer, and controls the motor driving module according to the instructions transmitted by the computer and the number of rotated rounds of the motor shaft. The motor driving module is connected with an external motor and drives the external motor to perform forward rotation, backward rotation, and stop operation under the control of the master controller, thereby controlling an electric fracturing switch to switch among an on position, an off position, and a middle position. The electric fracturing switch wireless electric control system solves problems of high operating ambient temperature and high pressure of an electric fracturing switch wireless communication part.

The invention provides a machining process of a printed circuit board, which comprises the steps of: providing a sensitizing printing ink cleaning solution to be accommodated in an accommodating space of a groove body; providing a printed circuit board to be cleaned to be hung between ultrasonic vibration boards; starting a temperature regulating device for controlling the sensitizing printing ink cleaning solution to be at a set temperature; and starting an ultrasonic cleaning device for cleaning the printed circuit board. According to the machining process of the printed circuit board, the working environment and the process reliability of the printed circuit board are ensured by adopting the ultrasonic cleaning device and the temperature regulating device, residues are effectively removed, the cleanness and the cleaning efficiency of the printed circuit board are greatly increased, the cost is lowered, and the reworking yield of the printed circuit board is increased. Meanwhile, the invention also provides a machining device of the printed circuit board.

The invention relates to the field of engine parts, in particular to an engine exhaust pipe heat shield. The engine exhaust pipe heat shield is characterized in that a hollow sandwiched jacket 1 which is fully sealed is arranged outside an engine exhaust pipe 2, one or two sets of cooling water inlets and cooling water outlets are arranged in the hollow sandwiched jacket 1, one group of cooling water inlets 3 and cooling water outlets 4 are connected with engine circulating cooling water, the other group of cooling water inlets 3 and cooling water outlets 4 are connected with supplementary cooling water. A temperature sensor 7 is arranged on the hollow sandwiched jacket 1. A control circuit controls an electromagnetic water valve 8 arranged in a supplementary cooling water pipeline. The hollow sandwiched jacket 1 covers the engine exhaust pipe 2 and a turbocharger connecting pipe 9. The engine exhaust pipe heat shield is in the hollow sandwiched water-cooled structure, burning accident of the engine can be effectively prevented, ambient temperature of the engine can be decreased even at normal times, operating efficiency of the engine is improved, and the service life of the engine is prolonged.

The invention discloses a material feeding device for a cement production line. The material feeding device comprises an oblique spiral feeding device, a drying device and an air heating device which are sequentially connected, wherein the oblique spiral feeding device comprises a horizontal feed inlet, an oblique upward spiral transmission section, a horizontal transfer section and an oblique feeding section which are sequentially connected; the drying device and the air heating device are respectively connected on the oblique upward spiral transmission section and the horizontal transfer section; the temperature of hot air blown out by the air heating device is maintained to be 45 degrees or below; the drying device is an electric heating device, and comprises a plurality of heating units which are arranged at the bottom of the oblique upward spiral transmission section, and a heater connected with the heating units; the air heating device comprises a circular ring-shaped spray ring which sleeves the upper part of the horizontal transfer section; a plurality of spray holes are formed in the inner wall of the circular ring-shaped spray ring; and the circular ring-shaped spray ring is connected with an air heater to acquire an air source. According to the material feeding device for the cement production line, the production efficiency is high, and cement uniformity and fineness quality are relatively high.

The invention discloses an airport airplane berth area microenvironment construction method. The method comprises the stesp of constructing a gallery bridge movable type microenvironment adjusting device and a vehicle-mounted movable type microenvironment adjusting device; determining an aircraft berth; for airplanes located at airport gallery bridge berths, combining a gallery bridge movable type micro-environment adjusting device and a vehicle-mounted movable type micro-environment adjusting device to construct an airport airplane berth area micro-environment; and for an airplane located at a far airplane berth of an airport, constructing an airport airplane berth area microenvironment by selecting a mode of combining two sets of vehicle-mounted mobile microenvironment adjusting devices, and the like. According to the method, the working environment temperature around an airplane in an airport berth area can be remarkably improved, direct solar radiation can be shielded, the interference of external factors such as rain, snow, high humidity and the like can be avoided, a proper working environment is provided for flight support personnel in the airport berth area, and the working environment and working conditions of flight support technicians are greatly improved.

The invention belongs to the technical field of vegetable oil expression, and particularly relates to a cottonseed kernel wetting, steaming and frying oil expression method which comprises a first-stage wetting system, a flaking mill, a second-stage wetting system, a multi-layer steaming and frying pot and an oil press which are sequentially connected in series, and is characterized by comprising five steps of first-stage wetting, flaking, second-stage wetting, steaming and frying and oil expression. The production capacity and the production efficiency are improved, the product quality is stable, and water and energy are saved.