62results about How to "Reduce thermal power" patented technology

A light (10, 11) of an apparatus for illumination of a sign (1), in particular of a traffic sign, is part of a unit (7, 8) which can be attached permanently to the existing sign and contains a power supply which is independent of the mains. In addition to the illumination of the sign, a further light (12) may also illuminate a surrounding area, for example areas of footpaths and roads.

The invention discloses a method for manufacturing an application substrate through photo-thermal effect, which comprises the following steps: performing light excitation on nanoparticles, and then converting light energy supplied by irradiation light rays into heat energy to further form a structure through the generated heat energy by which the application substrate with a specific surface structure is generated.

The present invention discloses a backlight module with a related liquid crystal display (LCD) which activates light emitting diodes (LEDs) by utilizing an alternate control method. The present invention utilizes two inverters to individually activate two sets of LEDs through an alternate method. During the same switching cycle period, the two sets of LEDs take turns turning on/off; that is, the two set of LEDs are in a closed state in a duty cycle of 50 percent. Since each set of the LEDs are in a closed condition in half the time during a switching cycle period, both of excess temperature produced by all of the LEDs when lightened simultaneously and thermal power generated during the lighting of the LEDs can be effectively reduced.

The invention relates to a dehumidifier comprises a dehumidifying wheel. An absorbent is arranged on the dehumidifying wheel; the dehumidifying wheel is divided into a dehumidifying area and a regeneration area; the dehumidifying wheel is connected with a driving device driving the same to rotate; one side of the dehumidifying area is provided with a fresh air duct; one side of the regeneration area is provided with a regenerating air duct; the dehumidifier further comprises at least two heat pumps; each heat pump is formed by a steamer, a compressor, a condenser and an expansion valve altogether forming a refrigerating circulating system; condensers of a plurality of heat pumps are arranged on a regeneration air inlet of the regeneration area; and the condensers of the plurality of heat pumps are orderly arranged front and back in the regeneration air duct. The numbers of heat pumps can be determined as needed; one or a plurality of heat pumps of the dehumidifier can be opened or closed as needed, so the dehumidifier can meet needs of various conditions; and flexible use can be achieved.

A water-cooling pre-heating heating body comprises a heating pipe, a water outlet pipe and electrode clamping hoops. The heating pipe is a quartz pipe, the outer surface of the heating pipe is coated with an electric heating coating, the two ends of the electric heating coating are coated with electrodes, the electrode clamping hoops are arranged on the electrodes, and the heating pipe is connected with the water outlet pipe. The water-cooling pre-heating heating body is characterized in that the heating pipe is installed in a radiating shell, the radiating shell comprises at least one heating cavity and a pre-heating cavity, the two ends of the heating pipe are fixed to the inside of the heating cavity of the radiating shell through sealing rings, a water inlet of the pre-heating cavity is communicated with a water inlet pipe, and a water outlet of the pre-heating cavity is communicated with the heating pipe. The water-cooling pre-heating heating body is compact in structure and convenient to install; by means of a cold water pre-heating mode, heat radiation emitted outside by the heating pipe is collected, water is pre-heated, energy is saved, heat power is improved, the problem of temperature rising of the heating pipe is effectively solved, the power density of an electrothermal film can be increased and the size of the heating pipe is reduced.

The invention relates to an ultrasonic vibration cup-shaped grinding wheel dresser for dressing a super-hard abrasive grinding wheel. The grinding wheel dresser comprises an ultrasonic generator and a base, wherein a variable-frequency motor and a cylinder body are arranged on the base, the central line of the cylinder body is arranged in a vertical direction, and a cover plate is connected to the upper end of the cylinder body through a flange; a hollow shaft with an open upper-end and a plugged lower-end is coaxially arranged in the cylinder body, a bearing is arranged between the inner wall of the cylinder body and the outer wall of the hollow shaft, and the variable-frequency motor is in transmission connection with the lower end of the hollow shaft; an ultrasonic transducer and an amplitude-change pole are arranged in the hollow haft, the outside of the amplitude-change pole is fixedly arranged on the hollow shaft through a detachable connection structure, and the upper end of the amplitude-change pole is upward and penetrates the cover plate, and a top-opened cup-shaped grinding wheel is fixedly coaxially arranged at the upper end of the amplitude-change pole. The grinding wheel dresser provides ultrasonic vibration in the axial direction, therefore, the microstructure of the dressed grinding wheel can be well improved, dressing of abrasive particles is completed while shaping is completed, grinding heat and power consumption are beneficially reduced, blockage to the grinding wheel and dressing burns are avoided, and the service life of the external circular grinding wheel is prolonged.

The invention provides a flexible space solar panel and relates to the technical field of solar panels. The flexible space solar panel comprises a solar collection device, a flexible unfolding device,a mandrel, an unfolding control device and a bracket, wherein the solar collection device is applicable to coiling and solar power generation; the flexible unfolding device is suitable for driving the solar collection device to be coiled, folded and unfolded; both the solar collection device and the flexible unfolding device are wound on the mandrel when being coiled and folded up; the unfoldingcontrol device is suitable for controlling the flexible unfolding device to unfold along a plane parallel to the tangent plane of the mandrel; the bracket is suitable for connecting the solar collection device and a spacecraft. According to the flexible space solar panel provided by the invention, a solar panel framework structure which is controllable in unfolding process and small in spacecraftimpact is manufactured by using a shape memory polymer composite material, integral design and manufacturing of a solar panel are achieved, a large-size solar panel can be coiled and folded up in a launching process, the solar panel is light in weight, and meanwhile, the unfolding reliability can be improved.

The invention discloses a phase transformation buoyancy engine cooled by a heat pipe. The phase transformation buoyancy engine is composed of a buoyancy generating unit and a temperature control unit.The buoyancy generating unit is composed of a hoop, a seal ring, a shell, an insulating material, a phase transformation material, a base and a watertight connector. The temperature control unit is composed of a heat-dissipating metal plate, the heat pipe, an electric heating wire, a direct current power supply and a switch. The phase transformation buoyancy engine is cooled efficiently by meansof the heat pipe, so that the cooling speed of a phase transformation material is improved, and a cooling process without energy consumption is achieved. In addition, the phase transformation buoyancyengine disclosed by the invention also has the advantages of being good in insulating effect, simple and stable in structure, light in weight and the like.

The invention discloses an energy-saving marine pump unit intelligent management system. The energy-saving marine pump unit intelligent management system comprises a master control unit and a pump control unit, wherein the pump control unit is composed of a water/lubricating oil pump and a temperature/flow sensor mounted on a pump pipe; the master control unit is connected with a man-machine interface and a master distributing board; the master control unit and the pump control unit are in a master-slave bus topological structure and exchange data via bus connection; the master control unit and the man-machine interface are connected via bus connection; the master control unit and the main distributing board as well as the pump, the sensor and the pump control unit are connected through hard wires. The invention also discloses an energy-saving marine pump unit intelligent management method. The energy-saving marine pump unit intelligent management system and method can improve the automation degree as well as the security degree of equipment, ensure optimized and high-utilization-rate energy consumption of cooling systems and have the advantages of saving energy, simplifying crew allocation and reducing labor consumption.

A thermal management system for an on-vehicle battery includes a battery, a first thermal element, a second thermal element, a battery mounting bracket, and a vehicle body structural element. The battery mounting bracket includes a first portion attached to the vehicle body structural element, and a second portion attached to the first thermal element. The first thermal element is attached to the first end portion of the battery, and the second thermal element is attached to at least one of the second end portion, the first and second side portions, the top portion or the bottom portion of the battery. The first thermal element is composed from a first phase-change material having a first phase-change temperature and the second thermal element is composed from a second phase-change material having a second phase-change temperature, wherein the first phase-change temperature is greater than the second phase-change temperature.

The invention discloses a solenoid valve with a power reduction function. A power reduction module is arranged at the front end of a solenoid valve coil; a main power source voltage detection system and a voltage conversion system are arranged inside the module; the main power source voltage detection system and the voltage conversion system are respectively connected with a single-chip microcomputer control system; the single-chip microcomputer control system outputs voltage through duty cycle of a power pipe; the single-chip microcomputer control system outputs pulse voltage with the pulse voltage frequency being 20KHZ and the cycle period being 50uS. A circuit controlling method disclosed by the invention comprises the following steps: providing direct current voltage for the power reduction module; inputting one path of voltage into the single-chip microcomputer control system through the main power source voltage detection system and inputting another path of voltage into the single-chip microcomputer control system after the voltage is reduced by the voltage conversion system; the single-chip microcomputer control system outputs the duty cycle of the voltage to the solenoid valve coil through the power pipe, and triggering the solenoid valve to act. According to the solenoid valve disclosed by the invention, the power is supplied intermittently to the solenoid valve coil, so that the heat power of electromagnetic coils is reduced, and the safe and reliable operation of the solenoid valve is guaranteed.

The present application provides a reflective screen of a monocrystal growth furnace and the monocrystal growth furnace. The reflective screen comprises an inner cylinder, an outer cylinder, a thermal insulating material sandwiched between the inner and the outer cylinders, and a thermal insulating pad disposed at the joint of the inner and the outer cylinders. The reflective screen and the monocrystal growth furnace are able to decrease the thermal transmittance from the outer cylinder to the inner cylinder, increase the vertical temperature gradient of the ingot, and prevent or decrease the silicon oxides evaporated from the molten silicon to condensate on the outer cylinder of the reflective screen. Thereby, polycrystalline caused by the oxides falling into the molten silicon can be reduced. Moreover, the thermal power required during the growth of monocrystalline silicon can be reduced because of the reduction of unnecessary thermal transmittance.

The invention provides a thermal diaphragm suitable for an annular solar telescope. One end of the thermal diaphragm suitable for the annular solar telescope toward the direction of light incidence isa reflective surface, and the other end is a bottom surface; the reflective surface of the thermal diaphragm suitable for the annular solar telescope is an inverted cone shape, and the bottom surfaceis a positive cone shape; the reflective surface with the inverted cone shape and the bottom surface with the positive cone shape are tangent at the vertexes of the two cones to form a light passinghole; and the cone angle of the inverted cone of the reflective surface is 88 to 93 degrees. The thermal diaphragm structure design provided by the invention strengthens the thermal control ability near the light passing hole, optimizes the temperature field near the light passing hole, reduces stray light to the greatest extent, and suppresses a ghost image; and the thermal diaphragm suitable forthe annular solar telescope has good temperature control effect, no ghost image and good stray light suppression effect, which ensures the imaging quality of the telescope.

The invention relates to a heat engine comprising means for: compressing a cooled working gas, heating the compressed working gas using an external heat source, expanding the heated compressed working gas, cooling the working gas using a heat exchanger with a cold source, and, subsequently, returning the cooled working gas into the compression means.

A method of revamping of an ammonia plant fed with natural gas comprising a primary reformer (11) and a secondary reformer (12), the method comprising at least the following interventions: reducing the outlet temperature of the gas (17) flowing out from said primary reformer; adding a feeding line of substantially pure oxygen (30) directed to said secondary reformer (12) to at least partially replace the comburent process air; adding a nitrogen injection line (31) in an amount necessary to obtain a make-up gas suitable for ammonia synthesis.

The invention discloses a fabric hot-pressing separation type calendaring processing technology. A heating system and a point rolling system are included. The heating system is synchronous to the point rolling speed of the point rolling system, and fabric is heated before point rolling; and a fabric surface temperature keeping device is arranged between the heating system and the point rolling system, and fabric surface temperature maintaining is guaranteed. Hot-pressing separation special hot-pressing separation calendaring machine processing equipment is calendaring machine equipment for textile, non-woven fabrics, leather and the like, wherein the hot-pressing separation special hot-pressing separation calendaring machine processing equipment includes the independent heating system (including infrared heating, steam heating and heat conduction oil heating) and a point rolling device.

The invention discloses a warmer with a mechanical accurate temperature control function. The warmer comprises a draught fan and an air cavity, wherein the draught fan is located in the air cavity, anair outlet is formed in the front side of the air cavity, a heating assembly is arranged at the position, leading to the air outlet, of the front side of the air cavity, the air outlet is formed in front of an upper bladeless fan stand column, the draught fan is located in a lower draught fan cavity, the heating assembly is composed of a plurality of heating grid pieces which are vertically arranged and a bimetallic strip set which transversely strings the heating grid pieces together, the direction of the bimetallic strip set faces the air outlet face, the heated middle of the bimetallic strip set is bent outwards, and a plurality of heat insulation assemblies are arranged at the joints between the bimetallic strip set and the heating grid pieces. According to the warmer, after the temperature reaches a certain value, the bimetallic strip deforms and bends, the effective air inlet area is reduced, the heating amount is reduced, and automatic temperature control is achieved in a high-temperature area.

The invention discloses an opposed firing boiler. The opposed firing boiler comprises a hearth surrounded by a boiler left-side wall, a boiler right-side wall, a boiler front wall and a boiler rear wall. A left-side wall burner is arranged on the center line of the boiler left-side wall in the height direction of the hearth, a right-side burner is arranged on the center line of the boiler right-side wall in the height direction of the hearth, several front wall burners are arranged on the boiler front wall, and several rear wall burners are arranged on the boiler rear wall; and a bellow for providing secondary air and over-fire air for the hearth is arranged at the peripheries of the boiler left-side wall, the boiler right-side wall, the boiler front wall and the boiler rear wall. According to the structure of the opposed firing boiler, on the basis that an original pulverized coal firing mode is not influenced, the problem of high temperature corrosion to side wall water cooling wallsis thoroughly solved.