125results about How to "Reduce the impact of normal operation" patented technology

The invention discloses a game theory-based multi-micro-grid interconnection running optimization method. The method includes the following steps: analyzing load demand response characteristics of allmicro-grids, and constructing a micro-grid group model; then initializing a system, establishing a day-ahead game model, and calculating a net load of the i-th micro-grid in a j-th period and a totalnet load amount of the system by day-ahead forecast data; obtaining respective optimal strategies by solving by all the micro-grids according to initial status, carrying out information exchange in amicro-grid group, sharing respectively obtained best strategy information, and updating status information; judging, by a system control center, whether Nash equilibrium is reached, and if the systemmeets an equilibrium condition, ending a game, and outputting a final optimization strategy set; and otherwise, turning ahead to carry out optimization again according to updated status information.The method can give consideration to both the stability and the economy of the system, and realize individual benefit maximization and optimal group running of the micro-grids at the same time.

Embodiments of the invention provide a data processing method, and an error code dynamic compatibility method, apparatus and system. The error code dynamic compatibility method comprises the steps of receiving a request of a requester; when request processing fails, reading an error code mapping relationship from a specified position of a memory, wherein the error code mapping relationship is previously obtained from a dynamic loading server and loaded to the memory, and the error code mapping relationship is generated through configuration of the dynamic loading server; and returning corresponding error prompting information to the requester according to the error code mapping relationship. According to the data processing method and the error code dynamic compatibility method, apparatus and system, the problem that codes of an apparatus or a system need to be modified and re-released when the error code mapping relationship is changed each time can be avoided.

The invention discloses a method for selecting neighbor nodes for peer-to-peer network transmission. The method comprises the following steps: establishing a connection between a central node and target nodes, which download target files, in a cluster, and judging whether the target nodes have non-downloaded file fragmentations or not; if YES, inquiring network usage amounts and total network card bandwidths of the target nodes; calculating residual bandwidths of the target nodes according to the network usage amounts and the total network card bandwidths of the target nodes, and sequencing the target nodes according to an order of the residual bandwidths from large to small to obtain a sequence table; selecting the previous N target nodes in the sequence table as the neighbor nodes. The method can increase the data distribution speed on the premise of reducing the influence on normal operation of tasks of the cluster. The invention further discloses a system for selecting the neighbor nodes for peer-to-peer network transmission, a computer readable storage medium and a server which have the above beneficial effects.

The invention discloses a calibration method of an electrochemical gas sensor. The calibration method of the electrochemical gas sensor includes the following steps: S100, turning off a measurement box for the electrochemical gas sensor when receiving an instruction for calibrating the electrochemical gas sensor; S200, acquiring the gas concentration detection value in the measurement box; and S300, updating the gas concentration reference value of the electrochemical gas sensor according to the gas concentration detection value. The invention also discloses the electrochemical gas sensor and an air conditioner. The calibration method can improve the detection accuracy of the electrochemical gas sensor.

The invention discloses a jet-flow control structure for an overflow surface of a high dam. An overflow surface flip bucket is arranged at a chute section on a dam body; the lower section of the chute section is connected with a continuous type flip bucket; arc-shaped water retaining walls are arranged at the two sides of the overflow surface flip bucket for converging water flow; an arc-shaped aeration ridge is arranged on the side surface of the overflow surface flip bucket; an aeration slot communicates with the overflow surface of the dam body; the overflow surface flip bucket comprises a middle overflow surface flip bucket which is aligned to the middle of a sluice hole and edge overflow surface flip buckets which are correspondingly connected with upper side piers at the two sides of the chute section; discharged water flow is firstly crossed and collides to dissipate energy after being diffused from the two sides of the overflow surface flip bucket, so that water flow shot by the overflow surface flip bucket is converged by the arc-shaped water retaining walls and is crossed with and collides with water flow shot by the continuous type flip bucket to dissipate energy, and sufficient aeration of water flow is matched, and therefore, discharged water flow drops into a downstream river bed after a great deal of energy is dissipated, downstream water flow is good in shape, and the energy dissipating effect is obvious.

The invention discloses an SCR post treatment pipeline device for a large displacement engine, which includes an ejection pipeline. The ejection pipeline is provided with at least one nozzle that can spray carbamide liquor in the ejection pipeline. The nozzle is mounted on the ejection pipeline in a mode that the spraying direction is along the flow direction of the smoke body in the ejection pipeline and the spraying axis of the nozzle forms an included angle together with the axis of the ejection pipeline positioned along the spraying direction of the nozzle. Mixers are respectively arranged along the spraying direction of the nozzle in the ejection pipeline. The device can lead the carbamide liquor to be fast hydrolyzed to release ammonia and uniformly mixed with waste gas. The hydrolyzing rate of the carbamide is higher, thus leading an NOx compound to have longer reaction time and to be fully reacted and leading the SCR system to have higher waste gas conversion rate.

The invention discloses a node vulnerability scanning method and device and computer equipment. The method comprises the steps: obtaining the vulnerability information of an industrial control system, the vulnerability scanning information of a target industrial control system, and the network topology information of the target industrial control system; according to the vulnerability information of the industrial control system, the vulnerability scanning information of the target industrial control system and the network topology information of the target industrial control system, generating a target attack graph, wherein the target attack graph is used for representing attack path information between nodes in the target industrial control system; according to the target attack graph, calculating a vulnerability risk level of each node in the target industrial control system; and determining a vulnerability scanning strategy of the target system according to the vulnerability risk level of each node. Through the implementation of the invention, a higher security protection level can be provided for nodes with high risk levels, and the overall security of the system is improved; scanning of low-risk-level nodes is reduced, system resources are saved, and influences on normal operation of the system are reduced.

The invention discloses a permanent magnet brushless DC motor provided with a self anti-interference speed control circuit. The structure of the invention comprises a stator, a rotor and the speed control circuit, wherein, the speed control circuit consists of a tachogenerator, an A/D converting circuit, a digital pulse-width modulation circuit, a logic time delay circuit, a power amplifier drive circuit, an inverter circuit and a digital control circuit; the input end of the digital control circuit is orderly connected with the A/D converting circuit and the tachogenerator in series, and then to the rotor end of the permanent magnet brushless DC motor; the output end of the digital control circuit is orderly connected with digital pulse-width modulation circuit, the logic time delay circuit, the power amplifier drive circuit and the inverter circuit in series, and then to the stator end of the permanent magnet brushless DC motor. The invention has the advantages that: the invention can estimate external disturbance and compensate through feedback, reduce the effect of the external disturbance to the permanent magnet brushless DC motor, improve the dynamic performance of the motor, and reinforce the stability and reliability.

The invention provides an air guide plate driving device comprising a moving component, a first driving component, a second driving component, a positioning device and a first control module. The moving component with the tail end connected with an air guide plate is used for closing the air guide plate and moving the same to a preset position on the outer side of an air outlet of an air-conditioner indoor unit, and the preset position is the position capable of enabling the air guide plate to complete rotation of an air guide angle on the outer side of the air outlet. The first driving component is connected with the moving component and used for driving the same to move. The second driving component is connected with the air guide plate and used for driving the same to rotate. The positioning device is arranged correspondingly to the moving part, and forms a sensing signal when the moving component drives the air guide plate to move to the preset position. The first control module is connected with both the positioning device and the first driving component in a communication manner. According to the arrangement, the air guide plate driving device is capable of effectively guaranteeing accuracy in movement of the air guide plate. The invention further provides an air conditioner with the air guide plate driving device.

The invention discloses a bus route recommending method considering bus arrival frequency and bus riding comfort, which comprises the following steps of: firstly, establishing a bus complex network for all bus stops and bus routes in a research area, and calculating the intermediary centrality of each bus stop; meanwhile, constructing an evaluation system of the bus route recommending method considering the bus arrival frequency and the bus riding comfort; secondly, setting geographical positions of a departure place S and destination E, and carrying out walking buffer area analysis on the S and the E respectively to obtain stop sets {Sa} and {Ea} of the S and E in a specified buffer area; and calculating all recommended bus route schemes from each bus stop in the {Sa} to {Ea}, wherein theobtained results are recorded as a set {SE}; finally, solving bus routes considering the bus arrival frequency and the bus riding comfort, wherein the results are sorted according to a specified itemsequence. According to the invention, the problems of walking distance, transfer, bus passenger comfort degree, arrival frequency and the like can be considered more reasonably, and a scientific basis is provided for urban bus trip optimization.

The invention provides a control method for oil return and noise reduction of a multi-split air conditioner, a storage medium and the multi-split air conditioner. The control method for oil return and noise reduction of the multi-split air conditioner comprises the steps that S1, when operation parameters of the multi-split air conditioner meet preset conditions, an oil return operation is carried out; S2, according to the degree of supercooling before and after oil return, whether noise reduction control is met or not is judged; and S3, an electromagnetic valve SV<1> of a noise reduction device is opened, so that a refrigerant circulates on one side of an outdoor unit. According to the control method for oil return and noise reduction of the multi-split air conditioner, the problems that after oil return, when a system lacks the refrigerant, the refrigeration operation airflow sound is large, and control fails can be effectively solved; pre-acting is carried out on the oil return process, so that the time by circulation of the refrigerant again is shortened; and meanwhile, judgement is carried out on the opportunity of quitting noise reduction control, quitting is carried out in different modes, and therefore the influence on normal operation of the multi-split air conditioner is reduced, and the user experience is good.

The invention discloses a novel oxygen producing and supplying square cabin which comprises a square cabin body and an oxygen producing and supplying system arranged in the square cabin body, whereinthe oxygen producing and supplying system comprises a power distribution cabinet, an air compressor, an air pretreating system, a nitrogen-oxygen separation module, a cyclic-process compressor and anoxygen-argon separation module; the air compressor, the air pretreating system, the nitrogen-oxygen separation module, the cyclic-process compressor and the oxygen-argon separation module are sequentially connected through pipelines; the cyclic-process compressor is further connected with an oil-free oxygen compressor through a pipeline, and the oil-free oxygen compressor is connected with an oxygen bottle through a pipeline; a plurality of groups of axial-flow fans which are opposite to each other two by two are arranged on a lateral wall of the square cabinet body, an air inlet grid is arranged on a lateral wall of an inlet right facing the air compressor of the square cabinet body, and the power distribution cabinet is connected with a power supply and can distribute power for the oxygen producing and supplying system. As the oxygen producing and supplying system in the oxygen producing and supplying square cabin disclosed by the invention is in a modularization design, on one hand,the oxygen producing and supplying square cabin has the advantages of simpleness in being assembled and disassembled, convenience in installation and convenience in maintenance; on the other hand, convenience is brought to a user to do simple and convenient development; furthermore, the modularization design reduces gas buffer volume, the volume of the oxygen producing and supplying system is reduced, and the novel oxygen producing and supplying square cabin is convenient to transport and transfer.

The invention discloses an elastic displacement compensating fixed-connection unit and a deep sea multi-pressure-body combined type pressure structure. The elastic displacement compensating fixed-connection unit comprises a circular disc-shaped pre-tightening cover, a locating cylinder section, an elastic element, a displacement compensation element and a sliding coating; the displacement compensation element is mounted at the internal bottom of the locating cylinder section; the sliding coating is plated on the external bottom surface of the displacement compensation element; the elastic element is mounted above the displacement compensation element; and the circular disc-shaped pre-tightening cover is screwed into the upper portion of the locating cylinder section and compresses the elastic element so as to push the displacement compensation element by using the elastic element. According to the elastic displacement compensating fixed-connection unit and the deep sea multi-pressure-body combined type pressure structure, the shrinkage deformation of the deep sea multi-pressure-body combined type pressure structure can be effectively compensated, the influence of deformation incompatibility of multiple pressure structures on a connecting frame can be reduced, the connecting safety and reliability of the combined structure can be effectively enhanced, and the mounting and maintenance are convenient.

The invention belongs to the technical field of closed water connection, and particularly relates to an FRD double-sealed immediate detection closed water socket-and-spigot joint. The problems that inthe prior art, a spigot and a socket possibly make contact with each other and are sealed, the positions which make contact with each other and are sealed are prone to causing connectivity of the interior of a annular space to be interrupted, accordingly, sealing performance detection of a double-sealed socket-and-spigot joint is uncompleted are solved. According to the technical scheme, the FRDdouble-sealed immediate detection closed water socket-and-spigot joint comprises a spigot and a socket, the spigot is a joint part of an inserting-in end, and the socket is a joint part of a socket end; the outer wall of the spigot is provided with an annular pressure test groove, the two sides of the pressure test groove are provided with annular sealing ring installation grooves correspondingly,and sealing rings are installed in the sealing ring installation grooves; and the socket is provided with pressure test holes which correspond to the pressure test grooves. In addition, baffles are arranged in the pressure test grooves. The FRD double-sealed immediate detection closed water socket-and-spigot joint is suitable for connection of drainage pipelines.

The invention belongs to the technical field of drainage pipes, and specifically relates to a polyolefin drainage pipe with FRD double seal for instant detection of a closed water bell and socket joint. The polyolefin drainage pipe aims at the problem that in the prior art, a socket and a bellmouth may be contacted and sealed, and the contacted and sealed parts may lead to the interruption of theinternal connectivity of an annulus, and then the incomplete detection of the sealing inspection of the double-sealed bell and socket joint may exist. According to the technical scheme, the polyolefindrainage pipe comprises a pipeline, two ends of the pipeline are separately provided with the socket and the bellmouth through an integral forming mode, an annular pressure test groove is arranged onthe outer wall of the socket, and annular sealing ring installation grooves are arranged on both sides of the pressure test groove; and a pressure test hole is formed in the bellmouth, the distance between the pressure test hole and a bellmouth opening is equal to the distance between the middle of the pressure test groove and a socket opening, and in addition, a baffle can be arranged in the pressure test groove. The polyolefin drainage pipe with the FRD double seal for instant detection of the closed water bell and socket joint is applicable to the connection of the drainage pipeline.

The invention provides a system utilizing low-temperature smoke residual heat of a generator unit to generate power. The system comprises a first steam power generation system, a condensing water pipeline, a low pressure heater and a steam condenser, wherein the low pressure heater and the steam condenser are arranged on the condensing water pipeline, the first steam power generation system comprises a low pressure cylinder, a smoke residual heat recycling device and a second steam power generation system, the low pressure heater is connected with the low pressure cylinder, the smoke residual heat recycling device comprises a heat absorbing section and a heat releasing section, the heat absorbing section is arranged in a boiler flue, the heat releasing section is arranged on a condensing water branch pipe which is parallelly connected with the condensing water pipeline, the second steam power generation system comprises a second steam turbine and a second generator which are connected, the second steam turbine is connected with the low pressure cylinder through a steam suction pipe, and the low pressure cylinder and the second steam turbine are connected with the condenser through steam exhaust pipes. The system has the advantages that the low-temperature smoke residual heat can be safely recovered, the recovered residual heat is used for generating power again by the cascade utilization method, the traditional problem of inaccurate metering of the power generation by recovered residual heat is solved, the problem of low-efficiency utilization of low-temperature residual heat of large power plants is also solved, and the power plant can reach the energy-saving and environment-protection purposes.

The invention provides an air conditioner and a control method and device thereof and relates to the field of condensation-preventing control over air conditioners. The control method and device of the air conditioner can select an accurate moment to execute condensation-resisting operation so as to improve user experience. The control method comprises the steps that firstly, when the air conditioner performs refrigeration operation, first operation parameters of the air conditioner are obtained, wherein the first operation parameters comprise the first relative humidity in a room corresponding to the air conditioner and a rotation speed of an indoor fan of the air conditioner; the accumulative operation duration or continuous operation duration of a compressor of the air conditioner underthe condition that it is determined that the first operation parameters meet condensation conditions is obtained, wherein the condensation conditions comprise that the first relative humidity is larger than a preset relative humidity, and the rotation speed of the indoor fan is smaller than a preset rotation speed; and if it is determined that the accumulative operation duration is longer than afirst preset duration or the continuous operation duration is longer than a second preset duration, the condensation preventing operation is executed, wherein the first preset duration is longer thanthe second preset duration. The control method and device are applied to the air conditioner.

The invention provides a three-phase squirrel cage asynchronous motor with an auto-disturbance-rejection speed regulation circuit. The three-phase squirrel cage asynchronous motor is characterized in that the motor consists of four parts: a three-phase squirrel cage asynchronous motor, a state acquisition circuit, a digital control circuit with an auto-disturbance-rejection speed regulation function and a control quantity transmission circuit; the three-phase squirrel cage asynchronous motor has the advantages of obviously improving the capability that the three-phase squirrel cage asynchronous motor resists the external disturbance, leading the rotation speed to be recovered to the rated rotation speed after suffering severe disturbance, being capable of controlling the three-phase squirrel cage asynchronous motor in real time, reducing the control delay caused by low processing speed of a normal singlechip as a digital signal processor is employed, having higher reliability for the calculation and control, improving the dynamic performance of the motor, and reinforcing the stability and the reliability when the three-phase squirrel cage asynchronous motor runs.

The invention discloses a three-in-one vertical desander and a desanding process. The desander comprises a quick opening closure and a vertical barrel, wherein a medium inlet is formed in the upper part of the vertical barrel, a medium outlet is formed in the middle, a backflush port is formed in the lower part, and a sand discharge port is formed in the bottom; a screen pipe is arranged in the vertical barrel, the upper part of the screen pipe is connected with the upper part of the vertical barrel, and the lower part of the screen pipe is connected with the medium outlet; the medium inlet adopts tangent gas inflow, a cyclone guide device is arranged at the medium inlet, a sand storing space is formed below the medium outlet, and a conical funnel is arranged below the sand storing space;an inlet differential pressure gauge is arranged at the medium inlet, and an outlet differential pressure gauge is arranged at the medium outlet. Compared with the prior art, the three-in-one verticaldesander has the positive effects as follows: desanding precision is improved, influence on normal operation of downstream equipment is reduced, time for desanding operation is determined by monitoring desanding time through differential pressure, desanding operation is convenient, and operation difficulty is reduced.