969results about How to "Realize the cooling effect" patented technology

The composite ventilating cold collecting road bed has the embankment structure comprising one tamped grit layer on tamped natural surface, one penetrating horizontal broken stone layer on the grit layer, concrete slab with longitudinal ventilation holes spread on the horizontal broken stone layer with the ventilation holes being perpendicular to the road bed orientation, and tamped soil refilling on the concrete slab. The combination of crushed stone layer and ventilating concrete slab has fast heat exchange of the ventilating holes with outside air natural convection temperature lowering effect of broken stones and thus can disperse heat at most in summer and block the heat transfer to inside the road bed in summer to lower the temperature of frozen earth below road bed and avoid the damage of the road bed caused by repeated freezing and thawing.

The invention discloses a tea making machine capable of automatically making tea water with better taste. The tea making machine comprises a water supply unit, a tea making unit, a tea water outlet unit and a control unit, wherein the tea making unit comprises a water container, a water permeable vessel and a cover, and the water permeable vessel is detachably arranged in the water container; the contact unit comprises an intelligent control module, an input module, a storage module and an acousto-optic prompting module, and the input module, the storage module and the acousto-optic prompting module are respectively and electrically connected with the intelligent control module; and the tea making machine also comprises a first temperature control device and a first liquid level sensor which are arranged in the water container and are respectively and electrically connected with the intelligent control module.

The invention discloses a control method and system for quick starting of a compressor of an outdoor unit of a variable-frequency air conditioner. The method comprises the steps that when the variable-frequency air conditioner is turned on, whether the variable-frequency air conditioner meets preset conditions at present is judged; if yes, a quick starting mode is triggered; and after the quick starting mode is triggered, a calculated outdoor target frequency is compared with a preset quick starting frequency, and a quick starting frequency is selected to start the compressor of the air conditioner according to a comparison result. According to the control method and system, the starting time of the compressor of the air conditioner can be shortened, and the refrigerating or heating effect of the air conditioner can be achieved more quickly; meanwhile, the requirement that the compressor is started without frequency hopping is met in the aspect of control, the requirement for the quick refrigerating and heating capacity is met in the aspect of performance, and the requirement for stable operation of the compressor is met in the aspect of reliability.

The invention discloses a natural cooling cold water device and liquid cooling device combined server cooling system which comprises a liquid cooling server cabinet. The liquid cooling server cabinet comprises a cabinet body and multiple liquid cooling servers arranged in the cabinet body, is provided with liquid cooling devices for direct liquid cooling and heat dissipation of the liquid cooling servers and is further provided with a natural cooling cold water device for auxiliary heat dissipation. The natural cooling cold water device and liquid cooling device combined server cooling system is capable of performing high-density refrigeration, high in heat exchange efficiency, low in energy consumption, capable of solving local hot points, small in occupied area, high in reliability, small in noise and long in service life.

The invention relates to an ultra-thin air conditioning unit and an urban rail vehicle installed with the air conditioning unit. The air conditioning unit comprises a shell; an air supply outlet and an air return inlet are formed in the bottom wall of the shell; two refrigeration and heating systems are separately arranged in the shell; the refrigeration and heating systems are symmetrical; each refrigeration and heating system comprises two compressors, two condensers, two evaporators, two expansion valves, two evaporator fans, a condenser fan and two electric heaters; each refrigeration and heating system is equipped with a controller; and the controller is integrated in the shell. The ultra-thin air conditioning unit is compact in structure and reasonable in layout, mechanical and electrical integration design is adopted, the controller is integrated in the shell of the air conditioning unit, a separate air-conditioning control cabinet in the existing urban rail vehicle technology is omitted, and the space in the vehicle is saved.

Disclosed is a built-in outer rotor permanent-magnet motor direct-drive mine hoist. A stator of a permanent-magnet motor is sleeved onto a spindle of the hoist through a stator support structure, a rotor support structure and an inner bearing are sleeved on the spindle of the hoist along two sides of the stator of the permanent-magnet motor, an outer rotor of the permanent-magnet motor is installed on the upper portion of the rotor support structure, an outer bearing and a reel support structure are sleeved on two sides of the spindle of the hoist, a steel wire reel is installed on the upper portion of the reel support structure and outside the outer rotor of the permanent-magnet motor, the outer rotor of the permanent-magnet motor is connected to the inner side of the steel wire reel through a flexible connecting mechanism, and a left support base and a right support base are installed at two ends of the spindle of the hoist. The advantages of compact structure and uniform stress of the built-in hoist are sufficiently used, the outer rotor permanent-magnet motor is simple in structure, excellent in control characteristics, efficient and reliable, system installation and connection of the rotor and the reel of the hoist are facilitated by the outer rotor structure of the motor.

A haze treating and lighting integrated device is characterized by mainly comprising a haze monitoring device (1), a city water supply pipeline (2), a branch water pipe (3), a maintenance control window (4), a pressurization pump (5), a valve (6), a spherical spray head (7), a lightning rod (8), a street lamp (9) and a street rod (10). The haze monitoring device is used for monitoring the PM2.5 concentration value, the pressurization pump (5) is started when the concentration value is larger than a set value, pumped high-pressure water enters the spherical spray head (7) through the valve (6), spherical water mist is sprayed, and then haze treatment is realized. The device has both the haze prevention and control function and the road lighting function, and automation of haze prevention and control and automation of sprinkling irrigation of greening trees on the two sides of the road are facilitated.

The invention discloses an automobile heat management system and an electric automobile. The automobile heat management system includes a heat pump air-conditioning system, a battery pack heat exchange system, an engine cooling system, and a first plate-shaped heat exchanger. The heat pump air-conditioning system and the engine cooling system can exchange heat with the battery pack heat exchange system through the first plate-shaped heat exchanger. The heat pump air-conditioning system includes an indoor condenser, an indoor evaporator, a compressor, and an outdoor heat exchanger; a refrigerant inlet of the first plate-shaped heat exchanger communicates with an outlet of the outdoor heat exchanger via a battery cooling branch, or communicates with a first end of a first branch and a first end of a second branch; and a refrigerant outlet of the first plate-shaped heat exchanger communicates with an inlet of the compressor via a battery cooling backflow branch. Accordingly, automobile internal cooling and heating can be achieved, the battery can be cooled or heated, and the battery can work in a suitable temperature range; and the charge/decharge efficiency, the cruising ability and the service life of the battery can be improved and prolonged.

The invention discloses a method for achieving temperature control in an elevator car and an elevator system. The method comprises the steps that based on an elevator car controller, a user command isreceived and comprises a temperature control command; based on a temperature sensor, the current temperature in the elevator car is obtained; the magnitude and plus-minus relations between the current temperature and the temperature value in the temperature control command are judged, and based on the magnitude relation and the plus-minus relation, a semiconductor cooler work command and/or an air capacity control command are/or generated; the air capacity control command is sent to a motor driving a cross flow fan to work, so that the motor drives the cross flow fan to work; and the semiconductor cooler work command is sent to a semiconductor cooler, so that the semiconductor cooler works according to the semiconductor cooler work command. According to the method for achieving temperature control in the elevator car and the elevator system, the semiconductor refrigeration and heating effects can be controlled for the elevator car.

The invention relates to an automatic-temperature-control automobile battery box which comprises a battery box body. The battery box body is provided with an air inlet and an air outlet which can be controlled to be opened and closed. The battery box body is internally provided with an air inlet uniform wind field, an air outlet uniform wind field and a battery pack composed of a plurality of single batteries. An air passing hole is formed in the battery pack. The two ends of the air passing hole are communicated with the air inlet uniform wind field and air outlet uniform wind field respectively. At least one battery temperature sensor is arranged on the battery pack. An environment temperature sensor is arranged outside the battery box body. The battery temperature sensor and the environment temperature sensor are both connected with a BMS control main board. The uniform wind fields penetrating through the battery pack are formed in the battery box body, a unique efficient cross flow fan and a temperature control system are arranged at the inlet end of an air duct, the temperature control system can be selected to be in a cold wind mode, a hot wind mode or a natural wind mode, the variable-flow uniform wind fields can be generated through the speed adjustment of the cross flow fan, and therefore heat exchange can be achieved for each battery, and the temperature of the battery pack is automatically raised or lowered.

The invention discloses a hollow fan blade-based aero-engine cooling and cooling air integrated design method, and relates to the technical field of aero-engine design. The design method comprises thesteps of introducing air to an air inlet cone from an air introduction position given by an air compressor, and heating the air inlet cone by utilizing the introduced air to prevent ice; performing centrifugal pressurization and cooling by a channel in a fan, collecting the pressurized air from a fan case, passing a cooling channel of an external case and an external case support plate in sequence to reach a core engine, and continuing to backwards lead the air to the outer side of a turbine combustion chamber; and enabling the air to flow in a turbine stator, and cooling a guide blade and stator and rotor parts. According to the method, the design idea that the air passes a turbine after passing the fan is adopted; ice prevention and turbine blade cooling of an air inlet system can be considered at the same time; excessive parts do not need to be added, so that the mass of the whole engine is reduced; and the cooling air quality and the overall engine efficiency are improved.

The invention discloses a server cabinet cooling system with combined gate-type heat pipe air-conditioner and liquid cooling device. The system comprises a liquid-cooled server cabinet; the liquid-cooled server cabinet comprises a cabinet body and a plurality of liquid-cooled servers arranged in the cabinet body; the liquid cooling device is arranged to perform direct liquid cooling heat dissipation on the servers; the gate-type heat pipe air-conditioner is further arranged to realize auxiliary heat dissipation. The server cabinet cooling system is high in cooling density, high in heat exchange efficiency, low in energy consumption, capable of solving local heat spots, small in floor area, high in reliability, low in noise and long in service life. A standard server cabinet can be applied to the system.

The invention discloses a heat exchange system of a single air conditioner as well as the single air conditioner and a control method thereof. The heat exchange system comprises an indoor heat exchanger, an outdoor heat exchanger and a compressor, wherein the indoor heat exchanger is divided into at least two secondary indoor heat exchangers; the outdoor heat exchanger is divided into secondary outdoor heat exchangers with the quantity which is the same as that of the secondary indoor heat exchangers; the heat exchange system is further provided with throttling devices and four-way reversing valves with the quantities which are the same as the quantity of the secondary indoor heat exchangers; a heat exchange module is composed of one secondary indoor heat exchanger, one secondary outdoor heat exchanger, one throttling device and one four-way reversing valve; all the heat exchange modules are connected with the compressor at the same time. According to the heat exchange system of the single air conditioner disclosed by the invention, the heat exchange system is divided into the plurality of heat exchange modules so that the independent control on the heat exchange modules is realized and the refrigeration of one part of the heat exchange modules and the heating of the residual heat exchange modules are realized, and furthermore, functions of dehumidifying at a constant temperature, defrosting continuously by heating, outputting refrigeration or heating at a constant temperature and the like are realized.

An extracting and converting method for heat energy in a coal field fire zone belongs to heat energy extracting and converting methods. A flame retardant filling material is utilized to cover air inlet and air outlet channels in a high temperature zone, such as earth surface cracks and collapse pits, injecting and pumping drill holes for a heat extracting medium are constructed from the earth surface to an underground coal fire high-temperature zone, and the injecting drill holes are distributed on the circumference with the pumping drill hole as a center. A gaseous heat medium is pressed into the injecting drill holes by a gas booster pump, then, a vacuum pump pumps out heat medium mixed gas finishing heat exchange and guides the heat medium mixed gas into a filter, the filtered gas enters an evaporator so as to finish heat exchange, and exchanged heat energy is converted to electricity by an organic Rankine cycle system. Then, other gasses are separated out of the heat medium mixed gas by a gas component separating station, and the rest heat medium is input into a low-temperature gas storage tank after being cooled by a cooler. Finally, the heat medium is pressed into the injecting drill holes again by the gas booster pump, and cycle is finished. The method has the advantages that not only are the extracting and conversion of waste heat energy in the coal field fire zone realized, and the purpose of fire zone treatment is also achieved, and has wide practicability.

The invention relates to a method for integrating producing, carrying and distribution of natural gas hydrates, comprising: producing the natural gas hydrates and storing it in the gas storing warehouse of lighter; when the natural gas hydrates is needed, supplying heat to the gas storing warehouse to attain gas storing warehouse; when needing remote transmission of gas storing warehouse, first using trailer boat bring the lighter to the destination, than, supply heat for exporting the natural gas hydrates and distribution; or using the lighter replace high pressure spherical tank as natural gas storing tank to supply natural gas in form of hydrates. Said invention integrates the storing, transmission and distribution of natural gas hydrates; since natural gas hydrates is solid, it is safe while lower energy consumption and cost.

The invention discloses a vehicle air conditioning system and a method for removing dust and mold from the vehicle air conditioning system. The vehicle air conditioning system comprises an air supply pipeline with an air inlet and an air outlet, wherein air entering the air supply pipeline from the air inlet can be refrigerated or heated therein to provide corresponding cold air or hot air into a carriage of a vehicle through the air outlet; the air outlet of the air supply pipeline comprises a first air outlet, a second air outlet and a valve component, wherein the first air outlet is opened towards the inside of the carriage of the vehicle; the second air outlet is opened towards the outside of the carriage; the valve component is used for selectively closing and opening the first air outlet and the second air outlet. The vehicle air conditioning system provided by the invention can remove dust and mold therein before an air conditioner is turned on, so that the air blown out from the air conditioner is guaranteed to be clean and the comfort of the inside of the carriage is improved.

The invention provides a liquid cooling system and a liquid cooling bag thereof. The liquid cooling bag comprises two sealing membranes and an internal structural member clamped between the two sealing membranes, wherein the internal structural member comprises at least two flat parts, and a gap is reserved between opposite edge sides of the adjacent flat parts; the two sealing membranes are fixedly connected with front and back surfaces of the internal structural member respectively, so that the gap forms a flow channel allowing a refrigerant to circulate; each sealing membrane is prepared from a metal plastic composite and comprises a metal layer for heat conduction and a plastic layer used for fixed connection with the internal structural member. The liquid cooling bag and the liquid cooling system comprising the same are used for liquid cooling of a battery module, a battery cell is directly cooled or heated under the condition that space use is basically not increased, and the efficiency is high.