607results about How to "Reduce ambient temperature" patented technology

The invention provides a voice control method for an air-conditioner and a voice control system for the air-conditioner. The voice control method for the air-conditioner comprises the steps that a voice instruction sent by a user is identified; the current operating state and/or the current operating environment of the air-conditioner are obtained, and the voice instruction is corrected according to the operating state and/or the operating environment to obtain a control instruction of the air-conditioner; the air-conditioner is controlled to work according to the control instruction. According to the technical scheme, the accuracy of voice control over the air-conditioner can be improved, and the experience of carrying out voice control on the air-conditioner of the user is promoted.

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 cooling method and a cooling device for a stelmor wire of a high-speed wire mill. The cooling device for a stelmor wire of a high-speed wire mill adopts the structure that the lower side of a transport roller way of a stelmor wire is sequentially provided with a plurality of upper draught fans along the direction of the transport roller way, the upper side of the transport roller way of the stelmor wire is also sequentially provided with a plurality of lower draught fans along the direction of the transport roller way, the upper draught fans are arranged on a steel structural frame which can be conveyed in a hanging way, an air outlet of each upper draught fan is symmetrical to an air outlet of each lower draught fan relative to the transport roller way, and an included angle between the air direction of each upper draught fan and the transport roller way is equal to an included angle between the air direction of each lower draught fan and the transport roller way. The cooling method is applicable to the cooling device. Furthermore, additionally provided with the the draught fans on the transport roller way, the cooling device realizes the upper air cooling and the lower air cooling of the wires, increases the cooling speed, and causes the wires to be cooled more evenly, thereby the invention solves the problems of nonuniform wire contact-point structure and nonuniform mechanical property.

The invention provides a wet-type dust-capturing wind current cooling device mounted at a head-on rear position of a mining working face mining machine, connected with an outlet end of a polluted wind pumping canister and comprising a cover shell, and a spray dedusting device, a cyclone centrifugal dedusting device, a dust screen filtering device, an air cooling type heat exchanger and a baffle plate demister which are connected in order inside the cover shell; positions of the cover shell walls below the cyclone centrifugal dedusting device and the baffle plate demister are respectively provided with drainage pipe ports. Fully-mechanized excavating working face dust capturing and wind current cooling works are combined together, with a treatment mode of firstly dust capturing and then wind current cooling, polluted wind is firstly subjected to multi-stage dust capturing treatment and then is demisted and cooled, the working face wind current temperature is controlled in a suitable temperature, a safe and comfortable working environment of the down-hole working face is ensured, and the problems of high temperature and high dust of the mine mining working face are better solved.

This is a method to prevent the indoor coil-pipe's temperature over lower, and its air conditioner. In the CPU of monotype set, install a temperature test block of the coil-pipe. Use the light-coupled silicon controlled method, according to the temperature of test value to control the alternating voltage of outdoor set, then to realize control the rotating speed of blower in the outdoor set. This invention provide a new electric-control method for fixed-frequency air conditioner, it can dynamic control the rotating speed of outdoor set's blower, to adjust the exchange efficient of this system in certain time interval.

The invention provides a battery system, and belongs to the technical field of batteries. The battery system comprises a case, a plurality of sections of battery cells, a temperature collecting probe, a BMS (battery management system), a heating and refrigeration assembly, a liquid flowing pipeline, a heat conduction medium and a water pump, wherein the liquid flowing pipeline passes through a gap formed among the plurality of sections of battery cells; the water pump drives the heat conduction medium to realize circulation flowing inside the pipeline; the temperature collecting probe and the heating and refrigeration assembly are electrically connected with the BMS; the BMS controls the heating and refrigeration assembly to work according to the temperature information feedback by the temperature collecting probe; the heating and refrigeration assembly and the liquid flowing pipeline perform heat exchange through a water cooling head so as to realize the heating and the refrigeration on the heat conduction media inside the liquid flowing pipeline; the whole temperature control system is directly controlled by the BMS. The battery system is provided with the temperature collecting probe, the heating and refrigeration assembly and the BMS; the environment temperature of the battery cells is regulated through controlling the temperature of the heat conduction media inside the liquid flowing pipeline, so that the battery cells always work in a set temperature range.

A portable mister for cooling ambient air is disclosed comprising a housing for entirely containing a cooling agent, an irrigation system connected to the housing for receiving the cooling agent from the housing and dispersing the cooling agent in ambient air, and a pump for facilitating the transfer of the cooling agent to the irrigation system. The mister is portable in that the cooling agent is entirely enclosed in a portable housing. That is, the mister user need not connect the mister to a continuous cooling agent source for operation. Additionally, the irrigation system is configured for placement to cool the ambient air of a broad area. The housing may include a system for including a fragrance in the cooling agent. The fragrance including system facilitates added a pleasant aroma to the dispersed cooling agent.

The invention discloses a high-efficiency thermochromic nano composite powder with a core-shell structure. The composite powder takes a VO2 layer as a core layer and a tungsten bronze compound layer as a shell layer; the VO2 layer is vanadium dioxide nano-powder, the smallest dimension in three-dimensional dimensions of the VO2 layer is not more than 100nm, and the tungsten bronze compound layer is MxWO3, wherein M is selected from any one of NH4+, Cs+, K+, Na+ or Li+; the value of x ranges from 0.01 to 0.8; and the thickness of the tungsten bronze compound layer is less than 60nm, an infraredabsorption characteristic of a tungsten bronze material is utilized to enable the shell layer to absorb heat, and the heat is quickly transferred to VO2 particles in the core layer through the closely connected core-shell structure, which results in the temperature rise and phase change of VO2, so as to reduce the ambient temperature required by the phase change of VO2, improve the thermal response speed of VO2, shorten the phase change reaction time and achieve an effect of efficient thermochromism.

The invention discloses a radiation cooling film which is formed by mixing ceramic particles, an organic solution and a curing agent, mixing the ceramic particles with an organic curing precursor solution, and curing, a micro-nano photon structure array is formed on the surface of the film, and the micro-nano photon structure array comprises a plurality of arrayed micro-nano photon structure elements. The invention further discloses a preparation method and application of the radiation cooling film. The film has the reflectivity of 95% in the sunlight band and the radiance of 96% in the atmospheric window band, can be lower than the ambient environment by 10 DEG C at most under the illumination condition, and also has good flexibility and strength and excellent hydrophobicity. The radiation cooling film is prepared in a low-cost and large-area manner by adopting a multi-etching double-spin-coating vacuum thermocuring process. The radiation cooling film is applied to the aspects of human body wearable cooling, cooling umbrellas and device heat dissipation, and a cooling method is achieved by removing heat from the surface and the interior of a main body in a heat radiation mode.

The invention relates to a pipe pile water curing method. In the method, a water storage tank is arranged, and condensate water and residual steam in a still kettle are guided into the water storage tank; a pipe pile is placed in a steaming and curing pool, the condensate water in the water storage tank is guided into the steaming and curing pool, and the residual steam in water storage tank is guided into the steaming and curing pool; and steaming and curing the pipe pile in the steaming pool for 4-5 hours at 80-90 DEG C. The curing device comprises the steaming and curing pool, the water storage tank and the still kettle, wherein the steaming and curing pool is provided with a water-steam port; the water storage tank is provided with a residual steam outlet, a residual steam inlet, a condensate water outlet and a condensate water inlet; and the still kettle is provided with a steam inlet and a steam outlet. A condensate channel is arranged between the water-steam port of the steaming pool and the condensate water outlet of the water storage tank, and a steam channel is arranged between the water-steam port of the steaming pool and the residual steam outlet of the water storage tank. The condensate water inlet of the water storage tank is communicated with the condensate water outlet of the still kettle through a third electric control valve and a pipeline, and the steam inlet of the water storage tank is communicated with the steam outlet of the still kettle through a second steam valve and a pipeline.

The invention relates to a plasm-aided selenium sulfuration treatment device arranged in a vacuum chamber. The plasm-aided selenium sulfuration treatment device comprises a shell, a cathode plate and an anode plate, wherein the cathode plate and the anode plate are alternately stacked to form a plasm generator, the cathode plate is provided with a groove for fixing a semiconductor film substrate, and small holes are uniformly distributed on the surface of the anode plate which is provided with a gas pipe, an independent internal heating electrode and an anode temperature-measuring point. The process based on the treatment device comprises the following steps of: (1) precasting a metal layer on the semiconductor film material according to the proportions of a chemical formula and then putting in the groove of the cathode plate; and (2) putting in the vacuum chamber to vacuumize, switching on a power supply to heat the cathode plate and the anode plate, switching on a power supply of the plasm generator and adding the mixed gases of selenium or sulfur, hydrogen and argon. The invention has the advantages that selenium ions have high reaction activity, the selenizing reaction of the metal precast layer is complete, the photoelectric conversion efficiency is high, and the substrate has lower heating temperature and is hardly deformed. An electronic mode is adopted to monitor the change of capacitive reactance between the two electrodes, know the conversion development and reduce the defective index of the industrial production.