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73results about How to "Addressing uneven distribution" patented technology

Microchannel heat exchanger

The invention discloses a microchannel heat exchanger, which comprises two collector tubes, a plurality of flat tubes and a plurality of fins, wherein the ends of the two collector tubes on the same side are respectively provided with a refrigerant inlet and a refrigerant outlet; the flat tubes are orderly arranged between the two collector tubes in the longitudinal direction of the collector tubes, and each flat tube is provided with a plurality of flow holes which are respectively communicated with the two collector tubes; each fin is arranged between adjacent flat tubes; and the flow resistance of the flat tubes gradually decreases from the inlet and outlet of the collector tubes, thereby balancing the flow resistance in each flow path. The invention effectively solves the problem of nonuniform refrigerant flow distribution, and preventing unfavorable partial heat emission from affecting the heat exchange efficiency of the complete machine. Preferably, the variation in the flow resistance of the flat tube is the variation of flow area of the flat tube. Preferably, the density of each flat tube is changed, so that different partial regions have different refrigerant flows. The invention has the advantage of reasonable and reliable structural design.
Owner:SANHUA HLDG GRP +1

Bicycle sharing allocation method based on tidal model and particle swarm optimization

The invention provides a bicycle sharing allocation method based on a tidal model and particle swarm optimization. The method comprises the following steps that: firstly, combining with the application regularity of bicycle sharing to establish the tidal model, and utilizing a least square method to solve parameters in the model so as to predict the quantity demanded of the important putting pointof each area; then, according to a prediction value, establishing a multi-objective planning model by five objectives, including a maximum quantity demanded fill rate, fewest transfer vehicles, a shortest transfer distance and balanced distance between the transfer vehicle and the transfer distance among areas as much as possible; and utilizing the particle swarm optimization to solve an optimalscheduling scheme. By use of the scheduling method, the distribution rule, which is about time and places, of the bicycle sharing can be combined, so that the method has the characteristics of being high in practical applicability, high solving speed and accurate allocation scheme, and a reasonable distribution scheme can be favorably provided for related bicycle sharing operation companies.
Owner:NANJING UNIV OF POSTS & TELECOMM

Multi-split air conditioner control method and system and computer readable storage medium

The invention discloses a multi-split air conditioner control method, a multi-split air conditioner system and a computer readable storage medium. The method comprises the steps that whether the overheat degree of each outdoor unit meets the target requirement or not is detected; if the overheat degree of each outdoor unit meets the target requirement, the first judgment about whether the difference value between the average exhaust temperature of all the outdoor units and the average exhaust temperature of an outdoor unit system reaches the set value or not is conducted; if the difference value between the average exhaust temperature of all the outdoor units and the average exhaust temperature of the outdoor unit system reaches the set value, the second judgment about whether the overheat degree of a passageway where an electronic expansion valve of each outdoor unit is larger than the first preset value or not is conducted; the third judgment about whether the average exhaust temperature of all the outdoor units is larger than the average exhaust temperature of the outdoor unit system or not is conducted; and if the third judgment result is yes, the aperture of the electronic expansion valves is increased; and if the third judgment result is no, the aperture of the electronic expansion valves is reduced. The multi-split air conditioner control method, the multi-split air conditioner system and the computer readable storage medium solve the problem that refrigerant distribution is not uniform, and the system exhaust temperature is effectively controlled through control over the aperture of the jetting electronic expansion valves.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

Bidirectional balanced flow distributor

The invention relates to a bidirectional balanced flow distributor. The bidirectional balanced flow distributor is characterized by comprising a flow splitting head, an inlet pipe, more than two connecting pipes and more than two resistance adjusting pipe, wherein an inlet end is arranged at one end of the flow splitting head while more than two outlet ends are arranged at the other end of the flow splitting head; each outlet end is respectively communicated with the inlet end; the outlet of the inlet pipe is communicated with the inlet end of the flow splitting head; the connecting pipes are as many as the outlet ends of the flow splitting head; each connecting pipe is respectively communicated with the outlet end of respective flow splitting head; the resistance adjusting pipes are as many as the connecting pipes; each resistance adjusting pipe is respectively arranged in respective connecting pipe and is fastened; the outer wall of each resistance adjusting pipe is matched with the inner wall of each connecting pipe in a sealing manner; each resistance adjusting pipe comprises more than two sections of short pipes with different inner pipe diameters; and the short pipes are arranged sequentially according to the size of the inner pipe diameters and are mutually connected in series to form a variable-diameter bidirectional throttling short pipe. The bidirectional balanced flow distributor has the advantages of not only realizing balanced distribution of a flow in each branch of an indoor heat exchanger when an air conditioner runs for refrigeration, but also realizing balanced distribution of the flow when the air conditioner runs for heating through a simple structure, and solving the problem of unbalanced distribution of the flow in each branch of the heat exchanger well when the conventional air conditioner runs for heating.
Owner:GUANGZHOU WEIJIN AIR CONDITIONER SCI & TECH

Water circulating system of dyeing and finishing machine

The invention discloses a water circulating system of a dyeing and finishing machine, which comprises a plurality of independent dye barrels arranged linearly; the upper and lower parts of the dye barrels are connected to the same circulating pipe; a one-way wave and a hydraulic pump are arranged on the circulating pipe; closed separating barrels are arranged at positions where the water circulating pipe is connected with the dye barrels; the centers of the top parts of the cylindrical separating barrels are connected to the circulating pipe through connecting ports; the connecting ports are shaped like upright cones; circular arc filtering screens are arranged at positions on the lower parts of the connecting ports; rotary round water wheels are arranged on the lower parts of the filtering screens; and the bottom parts of the separating barrels are divided into equal sectorial cells in the same number as the dye barrels. In the water circulating system of the dyeing and finishing machine, which is designed according to the scheme, the dye solution in the circulating pipe can be uniformly distributed by the round water wheels and sectorial cells, a better distribution effect is achieved, the dye solution in all dye barrels is uniform, and the problem of nonuniform dye solution distribution in series dye barrels is solved.
Owner:岳阳金瀚高新技术股份有限公司

Cinder-based volume cross-cluster mounting method and system

InactiveCN106210046AEnhanced management functionsSolve the problem that cannot be mounted across clustersTransmissionVirtualizationSCSI
The invention discloses a Cinder-based volume cross-cluster mounting method and system. The method comprises the steps of obtaining request information, used for mounting a volume to a virtual machine, of a user; obtaining identity information of a host in which the virtual machine is located according to an ID parameter of the virtual machine in the request information; obtaining iSCSI connector information of the host; calling virtualized adaptation information of volume management in a cloud platform by Cinder according to the iSCSI connector information; mounting the volume as a storage device to the host according to the virtualized adaptation information of the volume management in the cloud platform by the Cinder through an SCSI command; and mapping the successfully mounted volume into the virtual machine. The Cinder can shield virtualized difference of the volume and change of a virtualized interface, the volume is mounted to the host through the SCSI command, and the successfully mounted storage device is mapped into the virtual machine for the user to use; and the volume is mounted through the Cinder, so that the problem that the volume cannot be subjected to cross-cluster mounting is solved, the volume management operation is simplified, management logic is reified, the management efficiency is improved, and the problem of non-uniform storage resource allocation is solved.
Owner:INSPUR BEIJING ELECTRONICS INFORMATION IND

Oil balancing and returning air conditioning unit and control method thereof

The invention provides an oil balancing and returning air conditioning unit and a control method thereof. The oil balancing and returning air conditioning unit comprises outdoor units (201, 202, 203, 204) and indoor units (301, 302, 303, 304), each outdoor unit comprises more than two compressors (101, 102) which are arranged in parallel, air suction pipes (401,402) of each of the compressors are converged and connected to a gas-liquid separator (5), and exhaust pipes (601, 602) of each of the compressors are converged and connected to an oil separator (7), wherein each compressor is also provided with oil balancing holes (801, 802) used for discharging oil inside the compressor and oil balancing pipes (901, 902) connected with the oil balancing holes, and the oil balancing pipes of each of the compressors are converged and connected to a refrigerant outlet end of the oil separator (7). By using the oil balancing and returning air conditioning unit, oil in the compressors which are rich in oil can be effectively and uniformly distributed into each compressor and each outdoor unit through the oil balancing pipes, so that the problems of oil quantity distribution nonuniformity and oil level unbalance are solved.
Owner:GREE ELECTRIC APPLIANCES INC

SOC optimal dropping factor control method applied to distributed energy storage system

The invention discloses an SOC optimal dropping factor control method applied to a distributed energy storage system. The SOC optimal dropping factor control method comprises the following steps: step one, constructing an SOC optimal dropping factor; step two, describing a control system into a voltage source type converter according to the topological structure of a distributed energy storage converter; step three, comparing the product of the dropping factor and output port current idc with output end reference voltage udc, and forming new dropping control reference voltage u*dc; step four, designing a voltage and current adjuster, so that the phase margin and amplitude margin of the voltage and current adjuster are large enough; and step five, adding secondary control to compensate busbar voltage dropping, so that the whole system has relatively high dynamic response and relatively small steady-state error. The load can be effectively distributed according to surplus capacities of a storage battery and a supercapacitor through the SOC optimal dropping factor concluded through simulation and experiments, so that SOC quickly trends to be coincident, and the load trends to be equal. The SOC and port voltage information are shared through an interconnecting wire, and the method is used for dropping factor self-adaptive adjustment and busbar voltage recovery.
Owner:YANSHAN UNIV

Full-liquid-phase fluid uniform distribution device of high-pressure wound-tube type heat exchanger

The invention discloses a full-liquid-phase fluid uniform distribution device of a high-pressure wound-tube type heat exchanger The full-liquid-phase fluid uniform distribution device comprises a shell and a central cylinder, wherein a liquid receiving disk is welded between the shell and the central cylinder, a connection pipe is arranged outside the shell above the liquid receiving disk, at least two vertical heat-exchange pipes are arranged between the shell and the central cylinder, a liquid-enclosing weir pipe sleeved on the heat-exchange pipes is welded on the liquid receiving disk, and the upper end face of the liquid-enclosing weir pipe is horizontal. As the absolute horizontalness of a liquid disk can hardly be guaranteed when equipment is installed, with the liquid-enclosing weir pipe, a horizontal plane is provided to the liquid, liquid on the liquid-enclosing weir pipe can flow downwards along the walls of the heat-exchange pipes and along an annular space so as to form a uniform liquid film, and thus, the heat-transfer performance is improved. According to the full-liquid-phase fluid uniform distribution device disclosed by the invention, the problem of nonuniform distribution of a shell-pass full liquid phase of a large high-pressure wound-tube type heat exchanger is solved, and the full-liquid-phase fluid flows in a uniform distribution manner in the shell pass, so that the wound-tube type heat exchanger is greatly improved in heat-transfer performance.
Owner:牛玉振

Resource distribution method and device

The invention discloses a resource distribution method and device, relates to the technical field of data processing and aims at solving the problems that the distribution of resources is not even by adoption of an existing resource distribution method. According to the technical scheme, the method comprises the steps of monitoring an operating state of a processor core in a running state and an implementation requirement for a current task processed by the processor core in the running state; detecting whether the running state of the processor core in the running state meets the implementation requirement for the current task processed by the processor core in the running state or not; if not, the current task is processed by the processor core in an idle state in a processor core resource pool. The resource distribution method and device are mainly used for distributing processor core resources.
Owner:NEUSOFT CORP

Control method of multi-connected air conditioner and system and computer readable storage medium

The invention discloses a control method of a multi-connected air conditioner and a multi-connected air conditioner system and a computer readable storage medium. The method comprises the steps of detecting whether the overheating degree of each outdoor unit meets the target requirement; if the overheating degree of each outdoor unit meets the target requirement, performing first judgment on whether the average discharge temperature of each outdoor unit is equal to that of an outdoor unit system; if the average discharge temperature of each outdoor unit is not equal to that of the outdoor unit system, performing second judgment on whether the overheating degree of a passage on which an electronic expansion valve of each outdoor unit is located is greater than a first preset value; if the overheating degree of the passage on which the electronic expansion valve of each outdoor unit is located is greater than the first preset value, performing third judgment on whether the average discharge temperature of each outdoor unit is greater than that of the outdoor unit system; if the average discharge temperature of each outdoor unit is greater than that of the outdoor unit system, increasing the opening of the electronic expansion valve; and if the average discharge temperature of each outdoor unit is not greater than that of the outdoor unit system, reducing the opening of the electronic expansion valve. According to the control method, the opening of the injection electronic expansion valve is controlled, so that the problem of nonuniformity in distribution of refrigerant is solved, and the discharge temperature of the system is effectively controlled.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

High-flux automatic chromatographic detection device

The present invention discloses a high-flux automatic chromatographic detection device, comprising a chromatographic device; a test strip pushing device which is disposed above the chromatographic device and used for driving a detection mechanism to slide along an outer wall of a liquid storage tank such that a sample pad of a test strip contacts a sample liquid flowing into each detection channelof a reactor chamber; a switch driving device for driving a switch mechanism to motion such that the liquid storage tank is connected to or disconnected from each detection channel of the reactor chamber; an oscillation device for driving the chromatographic device to vibrate; a bar scanning device for collecting information of an identification code disposed on the detection mechanism; an imagecollection device for collecting an image of a display area on the test strip; and a control device, wherein the test strip pushing device, the bar scanning device, the image collection device, the switch driving device and the oscillation device are respectively electrically connected to the control device. The device of the present invention can realize automatic sample adding, automatic shakingup and automatic detection, such that manual operation is not required in the entire process. Therefore, the device greatly improves the working efficiency.
Owner:SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD

Refrigerant flow distributor of air conditioner

The invention relates to a refrigerant flow distributor of an air conditioner, which comprises a substrate of the refrigerant flow distributor. The refrigerant flow distributor is characterized in that: a step hole at one end of the substrate is provided with a nozzle; the nozzle is in a sleeve shape, and one end of the nozzle is designed into a bellmouth orifice shape; the larger end face of the bellmouth orifice butts against a step surface of the substrate; the bellmouth orifice of the nozzle and the other end of the substrate are used for communicating with a shunting hole provided with capillaries; and an included angle between an axis of the shunting hole and an axis of the substrate is between 10 and 20 DEG to form a cone-shaped diversion trench. When refrigerant flows from the nozzle end into the substrate through an input pipe, a vortex is formed at the bellmouth of the nozzle so as to make the refrigerant uniformly flow out from each capillary. The refrigerant flow distributor is easy to assemble, can ensure the refrigerant to uniformly enter the distributor, makes an air conditioning system work under the optimized ideal condition, and makes the system more safely and reliably operate.
Owner:NINGBO AOKESI ELECTRIC EQUIP FACTORY

Parallel flow heat exchanger and air conditioner with same

The invention provides a parallel flow heat exchanger and an air conditioner with the same. The parallel flow heat exchanger comprises a first flow collecting pipe, a first pipe, a second pipe a second flow collecting pipe, multiple flat pipe and a distributing assembly; the interior of the first flow collecting pipe is divided into an upper chamber and a lower chamber through a first partition plate; the first pipe and the second pipe are communicated with the first upper chamber and the lower chamber respectively; the interior of the second flow collecting pipe is divided into multiple sub-chambers through multiple partition assemblies, and the sub-chambers are communicated with one another through channels formed in the partition assemblies; the distributing assembly comprises a distributing box with a distributing cavity and an inlet pipeline and at least one outlet pipeline which are communicated with the distributing cavity, the inlet pipeline is communicated with the lowermost sub-chamber, and the outlet pipelines are communicated with the other sub-chambers respectively. According to the parallel flow heat exchanger, refrigerating agent distribution is uniform, and the heat exchange effect is good.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD +1

Battery pack equalization method based on sliding mode control

The invention discloses a battery pack equalization method based on sliding mode control. A special battery equalization topological structure is designed according to the disequilibrium situation of series battery packs; a mathematical model is established for the battery equalization topological structure, and a battery equalization system mathematical model formed by the battery equalization topological structure and the series battery packs together is established; and equalization control is performed by using a sliding mode controller through combination of the battery equalization system mathematical model so that equalization processing between all the batteries in the series battery packs can be realized. Battery equalization can be rapidly performed by the method so that the energy can be effectively saved and the battery life can be enhanced.
Owner:ZHEJIANG UNIV

Multi-connected unit, terminal distribution system, control method thereof and distributor

The invention provides a multi-connected unit, a terminal distribution system, a control method thereof and a distributor. The distributor is used for uniformly distributing fluids, and comprises a hollow shell and a rotor, wherein the shell is provided with an input pipe and multiple output pipes communicating with the input pipe; the rotor is rotationally arranged in the shell; the rotor is provided with a distribution cavity, a distribution inlet and multiple distribution outlets; the distribution cavity communicates with the distribution inlet and the multiple distribution outlets; the input pipe communicates with the distribution inlet; and the output pipes communicate with the distribution outlets. The rotor can be rotated in the fluid distribution process, so that the fluids are suffered by the effect of centrifugal force to uniformly enter each output pipe, the quantity of the fluids output by each output pipe is the same, the uniform distribution of the fluids is realized, theuniform distribution of the fluids by the terminal distribution system is guaranteed, the use comfort of the terminal distribution system is improved, and the reliability of the multi-connected unitis guaranteed.
Owner:GREE ELECTRIC APPLIANCES INC

Compressor pump body, compressor and multi-split air conditioner system

The invention relates to the technical field of air conditioning and provides a compressor pump body, a compressor and a multi-split air conditioner system. The compressor pump body comprises a crankshaft and three or more air cylinders, wherein the air cylinders are sequentially arranged on the crankshaft; each of the air cylinders forms an independent refrigerant compression passageway; each aircylinder of the pump body is provided with independent air suction and exhausting control and can provide one refrigerating cycle to solve the problem that the refrigerant is not uniformly distributed. Each air cylinder works independently, and when one indoor unit does not work, the air cylinder is controlled to idle so as to reduce the energy consumption and realize the effects of energy conservation and emission reduction.
Owner:ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION

Air conditioner

The invention provides an air conditioner. The air conditioner can solve the problem that in the prior art, gas-liquid two-phase refrigerants of an air conditioner are prone to gas-liquid separation in a collecting pipe of a multi-flat-pipe parallel flow heat exchanger, and consequently the refrigerants are distributed unevenly. The air conditioner comprises a multi-flat-tube parallel flow heat exchanger, the multi-flat-tube parallel flow heat exchanger comprises a plurality of flat tubes and a flow divider used for evenly distributing gas-liquid two-phase refrigerants into the flat tubes, the flow divider comprises a flow divider body, a refrigerant inlet and a plurality of refrigerant outlets, a flat flow channel is formed in the flow divider body, the refrigerant inlet communicates with the flat flow channel, and the multiple refrigerant outlets communicate with the flat flow channel and are distributed in the extending direction of the flat flow channel. According to the air conditioner, by arranging the flow divider, the gas-liquid two-phase refrigerants can be evenly distributed into the multiple flat tubes, and therefore the performance of a micro-channel heat exchanger is improved.
Owner:QINGDAO HISENSE HITACHI AIR CONDITIONING SYST

Information processing method and information processing equipment

The invention discloses an information processing method and information processing equipment. The information processing method comprises the following steps that: a splitting management server receives external request information; the external request information carries related data information; the splitting management server obtains a corresponding related data value according to the related data information, and obtains a quantity Y of bearing servers for processing the external request information; and the splitting management server selects to process the bearing servers for processing the external request information according to the related data value and the quantity Y of the bearing servers. In the information processing method and the information processing equipment provided by the invention, the occurrence of hotspots can be stabilized without manual intervention; and the problem that each bearing server is non-uniform in distribution when the level of the related data is expanded can be solved, so that the data splitting speed is rapid without error splitting; and the hotspots can be effectively avoided, and the stability and the reliability can be realized.
Owner:ALIBABA GRP HLDG LTD

Resource allocation method and device

The invention discloses a resource allocation method and device, relates to the technical field of data processing, and is mainly used for solving the problem of uneven allocation of the existing resources. The main technical scheme is that the actual allocation traffic number and the expected allocation traffic number of each processor core in the preset period of time are acquired; a traffic difference value is calculated according to the actual allocation traffic number and the expected allocation traffic number of each processor core, wherein the traffic difference value is used for representing the difference between the actual allocation traffic number and the expected allocation traffic number; and when the traffic difference value is greater than the preset threshold, the actual allocation traffic number of each processor core is allocated again according to the expected allocation traffic number of each processor core. The resource allocation method and device are mainly used for allocating the resources to the processor cores.
Owner:NEUSOFT CORP

Separated multi-channel chromatographic device

The invention discloses a separated multi-channel chromatographic device. The separated multi-channel chromatographic device comprises a quantitative siphon device, a detecting mechanism, a second tubular body and a reaction cavity, wherein the quantitative siphon device is used for sucking sample liquid; the detecting mechanism is arranged at the outer side of the quantitative siphon device in asleeving way, and comprises a first tubular body of which two ends are opened, and multiple test strips which are in array arrangement are arranged on the outer side wall of the first tubular body; the detecting mechanism is slidably inserted in the second tubular body; multiple connecting through holes corresponding to quantitative tube and the test strips are formed in the lower end of the second tubular body; the reaction cavity comprises at least two mutually independent reaction tanks; the upper end of the reaction cavity is rotationally connected with the lower end of the second tubularbody. Detection of multiple target detection objects can be realized through one sampling, the problems in joint detection that the sample liquid is unequally distributed, and the distribution is difficult to control are solved, multi-item detection can be simultaneously and stably carried out, high-flux detection is realized, the workload of detectors is effectively reduced, and the detecting efficiency is increased.
Owner:SHENZHEN BIOEASY BIOTECHNOLOGY CO LTD

Micro-channel reaction and mixing device

The invention belongs to the technical field of micro-channels, and relates to a micro-channel reaction and mixing device which comprises a fluid mixing unit, and the fluid mixing unit comprises a substrate; at least two fluid inlets at different positions are formed in the side wall of the substrate; a central hole penetrating through the substrate is formed in the substrate; the substrate is provided with micro-channel main paths of which the number corresponds to that of the fluid inlets; a mixed micro-channel and a micro-channel branch are arranged on the substrate; the fluid inlet is communicated with the central hole through the micro-channel main path; and the micro-channel main path is communicated with the central hole through the mixed micro-channel and the micro-channel branch.The micro-channel reaction and mixing device provided by the invention has the advantages that the mixing area is increased, the mixing effect is enhanced, and the mixing efficiency is improved.
Owner:YANGZHOU UNIV

Video file storage method and device, storage medium and electronic device

The invention provides a video file storage method and device, a storage medium and an electronic device. The method comprises the steps of determining a code stream type of an obtained to-be-stored video file; determining a storage space corresponding to the code stream type of the to-be-stored video file in a file storage system to obtain a target storage space; and storing the to-be-stored video file based on the residual capacity of the target storage space. According to the method and the device, the problem of non-uniform distribution of the storage space is solved, and the effect of reasonably distributing the storage space for the video file is achieved.
Owner:ZHEJIANG DAHUA TECH CO LTD

Bipolar plate structure and fuel cell

The invention provides a bipolar plate structure and a fuel cell. The bipolar plate structure comprises: a first side surface and a second side surface, wherein the first side surface is provided witha hydrogen flow channel, the second side surface is provided with an oxygen flow channel, the first side surface is provided with at least two hydrogen inlets and at least two hydrogen outlets, the at least two hydrogen inlets are respectively communicated with the hydrogen flow channel, the at least two hydrogen outlets are further respectively communicated with the hydrogen flow channel, at least two oxygen inlets and at least two oxygen outlets are formed in the second side surface, the at least two oxygen inlets are respectively communicated with the oxygen flow channel, and the at leasttwo oxygen outlets are respectively communicated with the oxygen flow channel. The bipolar plate structure is advantaged in that the number of flow channels communicated with each hydrogen inlet, eachhydrogen outlet, each oxygen inlet and each oxygen outlet can be ensured to be more uniform, therefore, the area of a reaction zone of the hydrogen-oxygen electrochemical reaction can be reasonably enlarged according to power requirements, and a problem of non-uniform gas distribution caused by a single inlet / outlet structure of three inlets and three outlets is solved.
Owner:GREE ELECTRIC APPLIANCES INC

Control method for multi-connected air conditioner, multi-connected air conditioner system and computer readable storage medium

The invention discloses a control method for a multi-connected air conditioner, a multi-connected air conditioner system and a computer readable storage medium. The method includes the steps of detecting whether the degree of superheat of each outdoor unit meets target requirements or not; if yes, judging whether the difference between the average exhaust temperature of each outdoor unit and the average exhaust temperature of an outdoor unit system reaches a preset value or not; if yes, comparing the value of the average exhaust temperature of each outdoor unit with the value of the average exhaust temperature of the outdoor unit system; and controlling an electronic expansion valve to act according to the results of the value of the average exhaust temperature of each outdoor unit and thevalue of the average exhaust temperature of the outdoor unit system so as to make the average exhaust temperature of each outdoor unit approximate the average exhaust temperature of the outdoor unitsystem. By controlling the opening degrees of the electronic expansion valves, the problem that refrigerant distribution in the multi-connected air conditioner system is not uniform is solved, and thesystem exhaust temperature is effectively controlled.
Owner:GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1

Heat exchanger and household appliance

InactiveCN107449182AThe number of import ports is reducedAddressing uneven distributionEvaporators/condensersEngineeringRefrigerant
The invention provides a heat exchanger and a household appliance. The heat exchanger comprises an inlet portion, an outlet portion and a heat exchange structure connected between the inlet portion and the outlet portion. The inlet end of the heat exchange structure is connected with the inlet portion. The outlet end of the heat exchange structure is connected with the outlet portion. The heat exchange structure comprises multiple layers of heat exchange row pieces. The multiple layers of heat exchange row pieces are formed by bending single flat pipes and arranged in the first direction. Each layer of heat exchange row pieces comprises multiple straight sections arranged at intervals in the second direction perpendicular to the first direction and bent sections for being connected with the adjacent straight sections. By the adoption of the heat exchanger and the household appliance, a refrigerant flows in the heat exchange structure more uniformly, and the heat exchange efficiency of the heat exchanger is improved.
Owner:SANHUA HANGZHOU MICRO CHANNEL HEAT EXCHANGER

Novel secondary air system for opposed firing boiler and working method thereof

The invention discloses a novel secondary air system for an opposed firing boiler and a working method thereof. A secondary air layer pipeline is connected with a secondary air box through a secondaryair branch pipe, and a flare is arranged between the secondary air branch pipe and the secondary air box; one end of the secondary air layer pipeline is connected with an A side secondary air main pipeline, and the other end of the secondary air layer pipeline is connected with a B side secondary air main pipeline; a combustor is provided with a central air pipe, a primary air pipe, an outer secondary air door and an inner secondary air door, wherein the outer secondary air door is arranged in the middle of the combustor, the inner secondary air door is arranged at the inner side of the outersecondary air door, the central air pipe is partially sleeved with the primary air pipe, and the primary air pipe is arranged at the inner side of the inner secondary air door; and the secondary airbox communicates with a hearth through the combustor. By supplying air from the bottom of the secondary air box innovatively, no ash is accumulated at the bottom of the secondary air box; and by supplying air from the bottom of the secondary air box respectively through the plurality of secondary air branch pipes, the problem of uneven flow distribution of the secondary air box of an opposed firing combustion system is effectively solved.
Owner:HUADIAN ELECTRIC POWER SCI INST CO LTD

Multifunctional living being transporting box based on internet of things and intelligent transportation and antibacterial and anti-grabbing resin

InactiveCN107873538ASolve the inconvenience of water supplyAddressing uneven distributionAnimal housingMicrocontrollerData acquisition
The invention discloses a multifunctional living being transporting box based on internet of things and intelligent transportation. The multifunctional living being transporting box comprises a box body, a data acquisition system and a data transmission system, wherein the data acquisition system and the data transmission system are arranged in the box body, the data acquisition system comprises acamera, a temperature sensor, a vibration sensor, a carbon dioxide sensor and a power module for supplying power for the modules, the data transmission system comprises a single chip microcomputer and a communication module, and the single chip microcomputer is connected with the sensors in the data acquisition system. The data acquired by the sensors are transmitted to a management terminal through the communication module. A water supply system of the multifunctional living being transporting box can accurately supply water for a certain specific transporting box, and the problem is solvedthat existing transporting boxes make water supply inconvenient and distribution ununiform. In addition, real-time states of living beings can be obtained at any time through intelligent control, first hand information is obtained, accordingly the living beings are cared, and the living being transporting quality is improved.
Owner:陈永福
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