96results about How to "Run continuously" patented technology

The invention discloses a method and a system for dynamically adjusting virtual-machine memory in a cloud computing environment. The method includes formulating a dynamic memory adjusting strategy; monitoring operational state of a virtual machine in real time, and acquiring memory using quantity of the virtual machine; judging whether the memory using quantity is larger than an upper-limit threshold value of the dynamic memory adjusting strategy or smaller than a lower-limit threshold value of the dynamic memory adjusting strategy; if the memory using quantity is larger than the upper-limit threshold valve, dynamically adding the memory of the virtual machine; if the memory using quantity is smaller than the lower-limit threshold value, dynamically reducing the memory of the virtual machine. According to the method, through a cloud management platform, dynamic expansion or reduction of the memory of the virtual machine can be effectively realized on the premise that the virtual machine is not switched off, ceaseless operation of core services in the virtual machine can be guaranteed, and unnecessary memory waste is reduced.

The invention discloses an optimal control method and system for an energy storage system participating in power grid frequency modulation, and a storage medium. The method comprises the following steps of (1) constructing a function suitable for reflecting frequency modulation operation cost of a thermal power generating unit and an energy storage system, (2) calculating a weight coefficient based on the power change rate and the SOC deviation, (3) establishing an AGC frequency modulation control target optimization function, (4) establishing AGC frequency modulation control constraint conditions, and solving the established AGC frequency modulation control objective optimization function by using a genetic algorithm to obtain an instruction distribution result of AGC instructions issued by the scheduling center between the thermal power generating unit and the energy storage system at each moment, and (5) establishing an energy storage auxiliary thermal power generating unit frequency modulation model, and obtaining a frequency deviation value, an energy storage system charge state, a fire storage frequency modulation instruction distribution result and an actual output value of the regional power grid at each moment. According to the method, the unit loss can be effectively reduced, and the frequency modulation response rate and quality are greatly improved.

The invention discloses a control method of frequency limiting and reducing of a compressor and an air conditioner using the method. The control method of frequency limiting and reducing comprises thesteps of detecting running parameters of the compressor, judging the interval range of the running parameters, and according to the judgment result, carrying out frequency limiting and reducing control over the compressor. Through monitoring of the current of the compressor and the temperature of a drive board, the running frequency of the compressor is controlled, elements of the compressor, thedrive board and the like can run within the normal range, happening of electric appliance safety accidents can be avoided, meanwhile, a unit can continuously run, frequent shutdown is not needed, andindoor temperature stability is ensured.

The invention discloses a pollution control method for an urban suburb eutrophication water body. According to the method, the eutrophication water body is used as a life drinking water source, in addition, the original water source is used as supplementing water of the eutrophication water body, the original water plant water purification process is improved so that the eutrophication water body is used as urban drinking water after being purified, and in addition, the pollution government cost is put into practice onto a pollution discharge main body or customers in a water supply charge form of a water plant. The method has the advantages that the traditional water pollution control concept is changed, the cyclic utilization of water resources is realized through the organic coupling of the pollution discharge main body and the responsibility main body of the water pollution government, meanwhile, the water change period of the eutrophication water body can be shortened by the method, in addition, the water quality of the supplemented water is good, the concentration dilution speed of nutrients in the pollution water body is favorably accelerated, and the pollution control of the urban suburb eutrophication water body is finally realized.

The invention relates to a circuit and topology for a high-reliability power electronic device system. The circuit and system topology comprising a plurality of controller units (20) is configured into a power system (10) providing high reliability. The controller units (20) control a subsystem and equipment so that the high-reliability power system (10) can also maintain running after the controller units (20), the subsystems (14) and (16) and the equipment (12) have failure.

The invention relates to a risk evaluation method for hydrogen energy equipment in a hydrogen refueling station, and the method comprises the steps: a control system obtains the operation parameters of each hydrogen energy equipment in the hydrogen refueling station, and the operation parameters comprise the operation parameters of a compressor, the operation parameters of a hydrogen storage tank, the operation parameters of a hydrogen refueling machine, the operation parameters of a filling gun, and the operating parameters of a connecting pipeline between any two pieces of adjacent hydrogen energy equipment; the control system determines whether hydrogen leakage exists in the whole hydrogen refueling station or not according to the operation parameters of all hydrogen energy equipment and effectively used hydrogen energy data and a hydrogen energy operation strategy; and if the hydrogen leakage exists, the control system determines the position information of the hydrogen leakage according to the data information of the adjacent monitoring points. According to the method, the availability and the reliability are fully considered, and the safety and the reliability of the hydrogen energy facility are guaranteed.

The invention relates to a device used for cooling of a kilowatt level optical fiber laser. A microchannel cooling device of the kilowatt level optical fiber laser is characterized by comprising an inner refrigerator and an outer refrigerator, wherein the outer refrigerator is sheathed on the inner refrigerator; when in use, the optical fiber laser is positioned between the inner refrigerator andthe outer refrigerator, and the optical fiber laser is wound on the inner refrigerator and is contacted with the outer refrigerator; the outer refrigerator and the inner refrigerator are connected byscrews; and the inner refrigerator and the outer refrigerator are made of metal. The device is characterized by even heat dissipation, obvious refrigerating effect and strong practicability and the like.

The invention belongs to the technical field of Internet data acquisition and application, and provides a service tag extension method in a big data environment. The service tag extension method includes the steps that the content of actual service is obtained, and a tag representing the service is extracted out; the tag is retrieved through a search engine to obtain an initial set of key words and webpage addresses (URLs) related to the tag; all the keywords and the URLs in the initial set are calculated according to K center distance, naive Bayes and pointwise mutual information algorithms to obtain weights; whether the weights meet a certain threshold value or not and are added into a result set of the tag or not is judged; whether the scale of the result set is larger than or equal to a scaled threshold value is judged. The service tag extension method has the advantages that a servicer can extend the service tag and the keywords and the URLs belonging to the tag conveniently through simple operation, the production efficiency is greatly improved, and requirements of development of various services are met.

The invention belongs to the technical field of chemical equipment and particularly relates to a continuous multi-stage constant-temperature-difference cooling crystallizer, comprising a crystallizerbody; the top and bottom of the crystallizer body are provided with a feed port and a discharge port respectively; the inside of the crystallizer body is divided into multiple cavities through cavitypartitions; each cavity partition is provided with a fluid passage which is openable; a heat exchange device and a stirrer are arranged in each cavity, and independent temperature control is carried in each cavity; a bottom stirrer is arranged at the lower portion of the bottom cavity; the stirrer in every cavity and the bottom stirrer are connected with a driving device through a stirring shaft.The continuous multi-stage constant-temperature-difference cooling crystallizer is suitable for continuous production, so that labor intensity is reduced, energy consumption for material transfer andpollution are decreased, and equipment utilization efficiency is improved; it can be ensured that crystallized products are good in quality stability and reliability and that the technique is reproducible, and differences between different batches of one material are decreased.

The invention discloses a frozen soil area buried oil and gas pipeline multi-field coupling monitoring and early warning system. The system comprises a multi-field coupling monitoring subsystem arranged on site and a monitoring and early warning subsystem arranged on a server side. The multi-field coupling monitoring subsystem comprises a pipeline strain monitoring device and a pipe periphery soiltemperature monitoring device. The pipeline strain monitoring device comprises a strain sensor, a strain sensor protection cover, a monitoring cross section protector, a leading-out cable and a cableprotection pipe. The strain sensor needs to be installed on the surface of a pipeline steel body, and the strain sensor is protected by the strain sensor protection cover; the protection cover is completely covered by the viscoelastic body paste, so that waterproof and moistureproof effects are achieved, and the service life of the sensor is prolonged. The monitoring and early warning system is safe and reliable, long-term and stable operation of the monitoring device can be guaranteed, continuous and effective monitoring data are provided, early warning information is issued in time based onthe monitoring data, and pipeline accidents under the influence of frost heaving and thaw collapse are prevented.

The embodiment of the invention provides an ore grinding machine control method and device. The method comprises the following steps: acquiring current power R of an ore grinding machine; determining the relation between the current power R and Rmid-delta R as well as Rmid+delta R, wherein Rmid is a middle value of a reasonable power range of the ore grinding machine, delta R is an allowable fluctuation quantity with Rmid as the center, Rmid is equal to Rmax-delta R, and Rmax is the maximum threshold of the power of the ore grinding machine; when R is less than Rmid-delta R, increasing the feeding amount of the ore grinding machine; when R is greater than Rmid+delta R, reducing the feeding amount of the ore grinding machine; and when Rmid-delta R is less than or equal to R and R is less than or equal to Rmid+delta R, finely adjusting the feeding amount of the ore grinding machine according to a change tendency of the power of the ore grinding machine and a preset strategy. According to the ore grinding machine control method and device, real-time monitoring is carried out on the important parameter, namely the power of the ore grinding machine, rough adjustment or fine adjustment of the load (the feeding amount) of the ore grinding machine is carried out so that the ore grinding machine can work under the optimal state all the time, the electric energy waste caused by low-load operation does not occur, material stacking caused by overload does not occur, and therefore the production process can run continuously, stably and efficiently.

The invention relates to a magnetmotive pipeline transportation device and an application thereof. The pipeline transportation device comprises a pipeline and a magnetmotive vehicle arranged in the pipeline, wherein at least one magnetmotive actuator is rranged at the bottom of the pipeline, at least one forward permanent magnet is arranged at the bottom of the magnetmotive vehicle, the magnetmotive actuators and the forward permanent magnet work cooperatively to provide power for the magnetmotive vehicle and drive the magnetmotive vehicle operates in the pipeline. By using magnetic force to drive the magnetmotive vehicle to process forward or conduct steering, the magnetmotive pipeline transportation device changes the traditional modes of transportation, and has the advantages of having clean energy, being environmentally friendly and pollution free, low in consumption and high in kinetic energy. The magnetmotive pipeline transportation device operates in the pipeline, therefore the device does not have windage resistance, and is free from influence of weather environment, and is capable of continuously running; meanwhile, the whole operation process is safe and reliable, therefore the device improves a lot in safety and reliability compared with the traditional modes of transportation.

The invention provides a system-level management method of a container in cloud calculating. The method comprises the following steps that during a service i operation process, a service monitoring unit i sends a query request message of an effective container quantity to a container control unit according to a time interval, wherein the query request message corresponds to a service i; the container control unit returns a container quantity m to a service monitoring unit i; the service monitoring unit i compares whether the container quantity m is less than a target container quantity n, if the container quantity m is less than the target container quantity n, a difference value is set to be p, and an instruction of immediately creating p new containers is issued to the container control unit; and the container control unit distributes the created p new containers to the service i. The method has advantages that a container which is distributed to one service and is converted to be in an ineffective operation state can be timely discovered and the new available container is timely distributed to the service; based on that, when one service is started and during an operated whole life process, the containers with a constant quantity are always distributed and the service is guaranteed to be continuously operated; and a service capability, stability and reliability of a system are increased.

The invention discloses a circulating system for improving the biogas yield of a biogas digester. The circulating system comprises an original dung liquid pool, a backflushing pool, a feeding well, abiogas digester, a liquid outlet pipe well, a biogas taking well and a plurality of slag discharging wells. Film pressing ditches are disposed on both sides of the biogas digester, a filter unit is arranged between the original dung liquid pool and the backflushing pool, and an adding device is arranged between the backflushing pool and the feeding well. The invention also provides a circulating method for improving the biogas yield of the biogas digester. According to the invention, during use, slag and floating objects can be removed, the biogas digester does not need to be stopped for cleaning, the waste heat generated by biogas power generation can be used for keeping running in supercold weather, so that the system can achieve cycle running continuously all year round, animal dung ofbreeding plants can be continuously cleaned so as to solve the environmental problem brought about by animal dung, the fermented biogas residue can be used for making organic fertilizer, thus reachingcyclic utilization of animal dung, also the biogas yield is high, and biogas can be continuously provided for power generation.

The invention relates to the technical field of power-type emergency power supplies, in particular to a power-type emergency power supply with an automatic main / standby motor switching function and an operating method. The power-type emergency power supply with the automatic main / standby motor switching function comprises a frequency switching unit, a charger, a battery pack, a switch contactor KM1, a switch contactor KM2, a load motor M1, a load motor M2, a rectifying unit, an anti-inverse diode D1, a switching power supply, a controller, a current sensor ACI1 and a current sensor ACI2. By the power-type emergency power supply with the automatic main / standby motor switching function and the operating method, a motor can be uninterruptedly operated during switching of an emergency power supply and a mains supply, and the situation that the motor stops operating is avoided. When main-motor failure occurs, the standby motor can be automatically switched to operate, so that essential loads are greatly ensured to be uninterruptedly operated, and safe operation of production of the essential loads is guaranteed.

The invention provides a cooling device for a variable propeller cabinet and a wind power generation unit. The cooling device for the variable propeller cabinet comprises a heat collection device and a condenser, wherein the heat collection device is arranged at the heating part of the variable propeller cabinet and is communicated with the condenser through a pipeline to form a loop; and a cooling medium is arranged in the loop, vaporizes through absorbing heat in the heat collection device, is liquefied through releasing the heat in the condenser and carries out circulation movement in the loop. According to the technical scheme provided by the invention, the problem about over temperature of the variable propeller cabinet is effectively solved, so that the wind power generation unit cannot shut down due to over temperature of the variable propeller cabinet, and the availability and the whole machine income of the wind power generation unit are increased; and the whole body of the variable propeller cabinet is ensured to be at lower temperature, so that a good working environment is provided for an electric element in a cabinet body, the reliability of the electric element is improved, and the service life of the electric element is prolonged. The cooling device has a simple structure, is convenient in installation and has higher reliability and longer service life.

The invention relates to a motor vehicle (10), comprising an internal combustion engine (14) and an air-conditioning system (38), which comprises an electric motor (42), which is designed to drive a compressor (40) of the air-conditioning system (38) in order compress a cooling fluid. A controllable coupling device (46) is designed to mechanically couple the electric motor (42) of the air-conditioning system (38) to the internal combustion engine (14) in dependence on a control signal. The electric motor (42) is accordingly designed to drive the internal combustion engine (14) as an electric starter in the state in which the electric motor is coupled to the internal combustion engine (14). The aim of the invention is to ensure stable operation of low-voltage loads (54) in the motor vehicle (10) when the compressor motor (42) of the air-conditioning system (38) is used to start an internal combustion engine (14). According to the invention, an inverter (44) of the electric motor (42) of the air-conditioning system (38) is designed to operate the electric motor (42) directly by means of a high voltage of a high-voltage vehicle electrical system (26) of the motor vehicle (10).

The invention provides a wind generating set closed cooling system. The wind generating set closed cooling system comprises a pump station, an external heat exchanger, a heat exchanging module of equipment to be cooled and a connection pipeline, wherein the pump station comprises a circulating pump and a three-way valve; a pipeline on the outlet side of the circulating pump is connected to the inlet of the three-way valve; the two outlets of the three-way valve are connected to a pipeline on the inlet side of the external heat exchanger and a bypass pipeline of the external heat exchanger; a joint between the pipeline on the outlet side of the external heat exchanger and the bypass pipeline is connected to the inlet of the heat exchanging module; a pipeline on the outlet side of the heat exchanging module is connected with a pipeline on the inlet side of the circulating pump. By adopting the wind generating set closed cooling system, high-pressure cooling liquid can be prevented from directly flowing into the heat exchanging module of the equipment to be cooled, impact of the cooling liquid is reduced, and the heat exchanging module is protected.

The invention provides a spray drying system using fuel gas exhaust and a spray drying method. The spray drying system comprises a gas turbine generator set and a combustion temperature increasing system, the gas turbine generator set and the combustion temperature increasing system are coupled together through a tee joint and other parts, and thus, the spray drying system has three operation modes, specifically, the gas turbine generator set and the combustion temperature increasing system cooperatively provide heat energy for a drying tower, or the combustion temperature increasing system directly provides heat energy, or the spraying amount of thinner is decreased. According to the spray drying system using the fuel gas exhaust and the spray drying method, the combustion temperature increasing system is additionally arranged, can serve as a main heat source to provide the heat energy for the drying tower and can also serve as an auxiliary heat source to cooperate with the gas turbine generator set for usage; the working modes are diversified, meanwhile, the operation reliability of the system is improved, even though some devices break down and stop, other systems can still provide heat energy, and the effect that the spray drying system is operated continuously and stably is ensured.

The invention discloses a microsource power generation system adopting a magnetic energy quantum superposition vector. The system comprises a first energy storage component, a second energy storage component, a magnetic suspension motor comprising at least two stator components and a suspending monopole rotor, a stator driving module, a rotor induction component magnetically generating first induction current on the basis of rotation of the suspending monopole rotor, a stator induction component magnetically generating second induction current on the basis of any stator component, a processingmodule, a horizontal component converter, a vertical component converter and a power transmission switching module, wherein the stator driving module drives the suspending monopole rotor to rotate, the processing module is matched with the horizontal component converter and the vertical component converter to store electric energy of a horizontal component and a vertical component of repeated harmonic current in the first energy storage component and the second energy storage component, the power transmission switching module switches the conduction states of the first energy storage component and the second energy storage component with the stator driving module and an external power consumption component. According to the design, the power supply states of the first energy storage component and the second energy storage component are switched, the system continuously runs, and repeated utilization of energy is realized.

The invention provides an outdoor machine of air conditioner and its operation method, comprising: a heat exchanger; a compressor; a coolant reflux device to return the coolant exhausted from the compressor. And its operation method comprise following steps: the first step that the compressor compresses the coolant according the preset temperature of temperature adjusting space; the second step that return the coolant exhausted by compressor into the compressor when the temperature of temperature adjusting space reaches the preset value in the first step; and the third step that stopping the return of coolant when the temperature of temperature adjusting space reaches the highest value of preset value in the second step. The advantages of said invention are that the side of coolant exhausted outlet of compressor and the side of adsorbing coolant are each mounted reflux pipes and electromagnetic valves, while the when the temperature of temperature adjusting space reaches the lowest value of preset value, it can continue the operation of compressor to reduce the waste of electricity of starting compressor.

The invention discloses a comprehensive solar photovoltaic power generation and salt preparation system and aims at providing a salt preparation system which can utilize solar concentrating for powergeneration, prepare salt, achieves comprehensive utilization of solar energy and increase an energy utilization rate. A chimney and a transparent heat collection shed are arranged on a salt pan; a condensation heat exchange device is arranged on the chimney; a light condensation photovoltaic system is arranged below the transparent heat collection shed and comprises a plurality of light condensation modules, light condensation photovoltaic batteries, battery cooling pipelines and brackets; the back surfaces of the light condensation photovoltaic batteries are clung to the battery cooling pipelines; the front surfaces of the light condensation photovoltaic batteries are in contact with air; the battery cooling pipelines, overground heat exchange pipes, underground heat exchange pipes and circulating pumps are sequentially connected to form enclosed cooling and heat exchange circulation pipelines; and a heat collection shed inlet is formed between the edge of the transparent heat collection shed and the salt pan. The photovoltaic power generation efficiency of the system is greatly improved; at the same time, the evaporation of water in the salt pan is intensified; and a salt preparation effect of the salt pan is improved.

The invention discloses a float flow adjusting valve capable of automatically cleaning stemming. The float flow adjusting valve comprises a main board, a driving device, an adjusting pull rod, a float gate and a floating barrel. A water outlet pipeline is arranged in the bottom of the main board, the float gate is placed in front of the water outlet pipe, the top of the float gate is connected to the adjusting pull rod, and the floating barrel is connected to the driving device; the driving device is connected to the adjusting pull rod and controls the adjusting pull rod to operate up and down. The float flow adjusting valve disclosed by the invention is firm and durable in integral structure, can automatically operate according to changes of a water level, further can continuously operate without external power, and is high in operating reliability, free of operating cost, simple in structure and small in later maintenance workload.

The invention relates to a method for monitoring the performance trends of parts and accessories of an airplane, and the method comprises the following steps: obtaining a plurality of groups of performance data of at least one performance index of the parts and accessories of the airplane from an airborne quick access recorder at a plurality of flight phases; determining a performance trend model function according to the type of the performance index; carrying out the operation processing of the plurality of groups of performance data based on the performance trend model function, so as to obtain the performance trench analysis data; and outputting a performance trend analysis result based on the performance trench analysis data. In addition, the invention also relates to a device for monitoring the performance trend of the parts and accessories of the airplane. According to the invention, the method and device can timely obtain the possible fault conditions of the parts and accessories of the airplane, thereby enhancing planned maintenance, reducing non-planned maintenance and achieving the support for the conventional maintenance analysis technology, so as to improve the airplane maintenance work efficiency of an airline, and reduce the airplane maintenance and operation cost.

The embodiment of the invention provides an ore grinding machine control method and device. The method comprises the following steps: acquiring a current pressure value S of a main shaft pressure of a feeding end of an ore grinding machine; acquiring Smid-delta S and Smid+delta S; if S is less than Smid-delta S, increasing feeding amount of the ore grinding machine; if S is greater than Smid+delta S, reducing the feeding amount of the ore grinding machine; and if Smid-delta S is less than or equal to S and S is less than or equal to Smid+delta S, finely adjusting the feeding amount of the ore grinding machine according to a change tendency of the main shaft pressure of the feeding end of the ore grinding machine and a preset strategy. According to the ore grinding machine control method and device, real-time monitoring is carried out on the main shaft pressure of the feeding end of the ore grinding machine; according to the current main shaft pressure and the relation between the current main shaft pressure and a reasonable main shaft pressure interval, rough adjustment or fine adjustment of the load (the feeding amount) of the ore grinding machine is carried out so that the ore grinding machine can work under the optimal state all the time; and the electric energy waste due to low load operation does not occur, and material stacking of the ore grinding machine due to overload does not occur so that the production process can be continuously run stably and efficiently.

The invention relates to a magnetmotive pipeline transportation device and an application thereof. The pipeline transportation device comprises a pipeline and a magnetmotive vehicle arranged in the pipeline, wherein at least one magnetmotive actuator is rranged at the bottom of the pipeline, at least one forward permanent magnet is arranged at the bottom of the magnetmotive vehicle, the magnetmotive actuators and the forward permanent magnet work cooperatively to provide power for the magnetmotive vehicle and drive the magnetmotive vehicle operates in the pipeline. By using magnetic force to drive the magnetmotive vehicle to process forward or conduct steering, the magnetmotive pipeline transportation device changes the traditional modes of transportation, and has the advantages of having clean energy, being environmentally friendly and pollution free, low in consumption and high in kinetic energy. The magnetmotive pipeline transportation device operates in the pipeline, therefore the device does not have windage resistance, and is free from influence of weather environment, and is capable of continuously running; meanwhile, the whole operation process is safe and reliable, therefore the device improves a lot in safety and reliability compared with the traditional modes of transportation.

The invention relates to the field of papermaking mechanical equipment, and provides a papermaking-raw-material biological-enzyme pretreatment device. The papermaking-raw-material biological-enzyme pretreatment device comprises an upper feeding mechanism for putting papermaking raw materials downwards, a lower discharging mechanism for discharging papermaking raw materials after pretreatment, an enzyme-liquid spraying mechanism arranged between the upper feeding mechanism and the lower discharging mechanism and a material carrying face located at the lower portion of the upper feeding mechanism, wherein the lower discharging mechanism is arranged on the material carrying face, and the enzyme-liquid spraying mechanism comprises a plurality of enzyme liquid outlets for spraying enzyme liquidto the papermaking raw materials. According to the papermaking-raw-material biological-enzyme pretreatment device, the papermaking raw materials can be fully mixed with the enzyme liquid, it is guaranteed that the papermaking raw materials and enzyme can be fully reacted, the product can be delivered to a boiling reaction device and subjected to a boiling reaction after a mixing reaction, the whole pulping process continuously runs, and working efficiency is improved. The invention also provides a papermaking pulping system, and the papermaking pulping system comprises the papermaking-raw-material biological-enzyme pretreatment device, and has the same advantages.