38results about How to "Improve cold start speed" patented technology

The invention discloses a heat pump integrated fuel cell automobile heat management system with a waste heat utilization function. The heat pump integrated fuel cell automobile heat management systemcomprises a heat pump circulation loop, a motor circulation loop, a fuel cell circulation loop and a battery pack circulation loop. The heat pump circulation loop is connected with other circulation loops through a plurality of plate heat exchangers to form the integrated heat management system, is connected with the fuel cell circulation loop through a first plate heat exchanger, is connected with the motor circulation loop through a second plate heat exchanger and is connected with the battery pack circulation loop through a third plate heat exchanger. Through the heat pump integrated heat management system, the heat pump cycle can utilize the environment or other heat sources to assist in heating the fuel cell to realize low-temperature cold start; a multi-heat-source heat pump air conditioner is composed of a fuel cell and motor circulating waste heat, the defect that the energy efficiency value of a heat pump is low at low temperature is overcome, and frosting of an external heatexchanger can be avoided.

The invention discloses a fuel cell thermal management system with phase change heat storage and preheating functions. The fuel cell thermal management system comprises a heat pipe heat exchange part,a liquid path preheating loop, a liquid path heating loop, a gas path preheating loop and a gas path heating loop, wherein the heat pipe heat exchange part is embedded into a heat pipe in a polar plate to exchange heat with an external liquid path, a first phase-change heat exchanger is connected with a liquid path, a second phase-change heat exchanger is simultaneously connected with a gas pathand the liquid path, the liquid path preheating loop heats the liquid path through the first phase change heat exchanger, the gas path preheating loop heats the gas path through the second phase change heat exchanger to jointly preheat a fuel cell, waste heat of a fuel cell in the liquid path heating loop accumulates heat for the phase change heat exchanger or heats a lithium battery and a passenger compartment, the gas path heating loop indirectly heats inlet gas through cooling liquid. The fuel cell thermal management system is advantaged in that the waste heat of the fuel cell can be storedin the phase change heat exchanger and used for preheating the fuel cell through a liquid path and a gas path or for heat preservation of the fuel cell, in addition, the waste heat of the fuel cell can heat intake air, a lithium battery or a passenger compartment, and the energy utilization rate is increased.

The invention provides a fluctuation type power input water electrolysis hydrogen production method and device. The method comprises the step of: distributing fluctuation type input power into electrolysis power and heat storage power, wherein the electrolysis power is used for providing electric energy for hydrogen production by electrolyzing water; and the heat storage power is converted into heat energy for providing starting energy for hydrogen production by electrolyzing water, so that the cold starting speed of hydrogen production by electrolyzing water is increased. According to the method, fluctuation type power is distributed into heat storage power, and the heat storage power is converted into heat energy for providing starting energy for hydrogen production by electrolyzing water, so that the cold starting speed of water electrolysis hydrogen production can be remarkably increased, the system cannot be stopped, frequent start and stop of the system caused by fluctuation typepower input are effectively avoided, the concentration change of hydrogen and oxygen cannot be affected, and the yield and quality of hydrogen and continuous and safe production are guaranteed.

The invention relates to a device for starting a proton exchange membrane fuel cell at a temperature below zero degree, wherein a mixed gas is catalytically preheated at an anode, and tail gas of theanode is introduced into a cathode, so that an unreacted mixed gas is catalytically reacted at the cathode, and the effect of simultaneous heating of the cathode and the anode is realized. The invention is improved on the traditional catalytic cold start device, the cathode and the anode can simultaneously generate catalytic reaction and provide heat to the battery, which can realize low temperature start-up in the temperature range equal to -45 DEG C or below, fuel is fully utilized, the battery start-up power consumption is reduced and the low temperature start-up time is greatly reduced.

The invention relates to an advertisement putting account information learning method and a device, computer equipment and a storage medium. The method comprises the following steps: determining at least one historical putting account allocated to a newly added advertisement putting account in response to a historical putting account selection instruction of a user for the newly added advertisement putting account, wherein the historical putting account is an advertisement putting account historically created by the user, and the advertisement putting effect of the historical putting account meets a preset condition; after entering an account learning state, screening advertisement putting information of the at least one historical putting account to obtain screened advertisement putting information; and performing initialization setting on the advertisement putting information of the newly added advertisement putting account based on the screened advertisement putting information. By adopting the method, the advertisement putting efficiency can be improved.

The invention discloses a nitrogen oxide sensor. The nitrogen oxide sensor comprises a first solid electrolyte layer, a second solid electrolyte layer and a third solid electrolyte layer, and a common electrode is arranged on the side, facing the third solid electrolyte layer, of the second solid electrolyte layer. A main pump electrode, an auxiliary pump electrode and a measuring pump electrode are arranged on the side, facing the first solid electrolyte layer, of the second solid electrolyte layer, a reference electrode is arranged on the side, deviating from the second solid electrolyte layer, of the first solid electrolyte layer, and a heater is arranged on the side, facing the second solid electrolyte layer, of the third solid electrolyte layer. According to the nitrogen oxide sensor, the distances between the main pump electrode, the auxiliary pump electrode, the measuring pump electrode, the common outer electrode and the heater are shortened, the heating efficiency of the nitrogen oxide sensor is improved, the power consumption in a working state is reduced, and meanwhile, the service life of the nitrogen oxide sensor can be prolonged.

The invention discloses a hydrogen production and storage system, which comprises an electrolytic bath and a hydrogen storage device, and further comprises a heat storage power generation device, an oxygen storage device and a water storage device. The invention further discloses a multi-mode circulating hydrogen production method, which adopts the hydrogen production and storage system. According to the invention, a heat storage power generation device is introduced into a hydrogen production system and cooperates with renewable energy power generation to electrolyze water to produce hydrogen in an electrolytic cell, so that the problems of variable working conditions and frequent start and stop caused by the use of renewable energy in the hydrogen production process are avoided, and the adaptability of the PEM electrolytic hydrogen production system to the fluctuation characteristic of new energy is improved; according to the multi-mode circulating hydrogen production method provided by the invention, a method of coupling organic Rankine cycle power generation with renewable energy power generation is adopted, so that the power shortage of the input end caused by fluctuating renewable energy is filled up, and the productivity of a hydrogen production system is ensured; and the method and the system provided by the invention are simple and easy to implement, energy generated in the whole hydrogen production and storage system can be fully utilized, the economical efficiency of the whole system is improved, and the energy consumption is reduced.

The invention discloses a nitrogen oxide sensor which comprises a first structural layer with the same thickness as a second structural layer, and the first structural layer and the second structural layer are symmetrically arranged relative to a solid electrolyte layer group; a common electrode is arranged on the side, facing the first structural layer, of the first solid electrolyte layer, and a first main pump electrode and a first auxiliary pump electrode are arranged on the side, facing the second solid electrolyte layer, of the first solid electrolyte layer. A second main pump electrode, a second auxiliary pump electrode and a measuring pump electrode are arranged on the side, facing the first solid electrolyte layer, of the second solid electrolyte layer, a reference electrode is arranged on the side, facing the third solid electrolyte layer, of the second solid electrolyte layer, and a heater is arranged on the side, facing the second structural layer, of the third solid electrolyte layer. According to the nitrogen oxide sensor, the power consumption of the nitrogen oxide sensor in a working state is reduced, the service life of the nitrogen oxide sensor can be prolonged, and meanwhile, the firing qualification rate is improved.

The invention relates to an applet cold start method and device, computer equipment and a storage medium. The method comprises the steps: obtaining a to-be-started target applet corresponding to trigger information when the trigger information is detected; obtaining execution information of each to-be-loaded step of the target applet, wherein the execution information is used for representing a loading mode of each to-be-loaded step, and the loading mode comprises a parallel loading mode; and executing each to-be-loaded step according to the execution information so as to control the target applet to perform cold start. By adopting the method, the cold start speed of the applet can be increased.