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3824 results about "Piping" patented technology

Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid.

Real-time monitoring of physical components using machine learning models

Various automated techniques are disclosed herein for monitoring and assessing real-time and future operational and health statuses of real-world assets (e.g., physical devices, components, equipment, structures, buildings, machines, infrastructure, piping systems, etc.). A monitoring system incorporates the use of intelligent Monitoring Devices for monitoring pipe systems and / or other infrastructure for leaks / issues using IoT devices and machine learning. One or more Monitoring Device(s) are attached to specific physical equipment / structure(s) to be monitored. A Monitoring Device performs comprehensive field data gathering. The collected field data is used to train a customized ML model, which is stored locally in that Monitoring Device. The Monitoring Device monitors current conditions of the pipe using various sensors, and uses its locally stored customized, trained model to perform real-time, edge-based analysis of the monitored data to identify possible issues in real-time and / or to predict future maintenance / service needs without relying on continuous cloud connectivity.
Owner:IOT TECHNOLOGIES LLC

Displacement analysis evaluation and compensation method for optimizing thermal expansion of pipeline

The invention relates to the field of industrial pipeline systems, in particular to a displacement analysis evaluation and compensation method for optimizing pipeline thermal expansion. The method comprises the following steps: collecting multi-temperature thermal state snapshots to form a thermal state change sequence; determining a thermal expansion constraint boundary according to the thermal state change sequence, and forming boundary condition data; fixed points and free points of the pipeline system are identified according to the boundary condition data, and a degree-of-freedom distribution diagram is constructed; based on the degree-of-freedom distribution diagram, analyzing a displacement transfer relation of each pipe section, and generating displacement transfer chain data; identifying a thermal expansion concentrated release area through displacement transfer chain data, and performing node resonance detection to form vibration risk assessment data; and designing a thermal stress digestion path based on vibration risk assessment data, and setting flexible constraints to form a balanced stress network. The thermal expansion displacement transmission path is tracked in real time through displacement transmission chain analysis, the resonance frequency is synchronously recognized in combination with vibration mode detection, and dynamic association of the thermal expansion process and the vibration mode is achieved.
Owner:JIANGXI YICHUN JING COAL THERMAL POWER CO LTD

Water gate risk real-time evolution prediction and evaluation method

The invention discloses a sluice risk real-time evolution prediction and evaluation method, and relates to the technical field of hydraulic engineering, and the method comprises the steps: synchronously collecting real-time multi-physics field data of a target region in a foundation through an in-situ multi-parameter collaborative sensing network; extracting a multi-dimensional spatial-temporal feature sequence from the real-time multi-physics field data, and matching the multi-dimensional spatial-temporal feature sequence with a seepage evolution mode record pre-constructed in a multi-physics field data fusion and knowledge base to identify a collaborative anomaly mode representing a current seepage state; predicting a risk evolution trend based on the identified collaborative abnormal mode; according to the method, the real-time perspective of the three-dimensional structure and dynamic evolution of the seepage network in the foundation can be realized, the real-time perspective of the three-dimensional structure of the seepage network in the foundation and the dynamic evolution of the seepage network in the foundation can be realized, and the real-time perspective of the three-dimensional structure of the seepage network in the foundation can be realized before the occurrence of catastrophe such as piping. And sending out critical state early warning.
Owner:JIANGXI ACAD OF WATER RESOURCES (JIANGXI PROVINCE DAM SAFETY MANAGEMENT CENT JIANGXI PROVINCE WATER RESOURCES MANAGEMENT CENT)

Automatic machine tool cooling liquid supplementing device based on liquid level sensor

The invention discloses an automatic machine tool cooling liquid supplementing device based on a liquid level sensor, which is applied to the technical field of automatic machine tool cooling liquid supplementing and comprises a liquid supplementing mechanism and a liquid level detection mechanism, the liquid level detection mechanism is arranged on one side of the liquid supplementing mechanism, and the liquid level detection mechanism is in pipeline connection with the liquid supplementing mechanism; the liquid supplementing mechanism comprises a machine body, a control cabinet and a four-way pipe, and the control cabinet is in signal connection with a liquid supplementing system; the liquid level detection mechanism comprises a circulating box, a fifth liquid supplementing pump, a liquid level sensor, a buffering assembly and a cleaning assembly, the buffering assembly and the cleaning assembly are both located in the fine filtrate area, and a concentration sensor is fixedly connected to the interior of the circulating box; the buffer assembly comprises two sets of limiting blocks and a plurality of fan wheels, the cleaning assembly comprises an air cylinder, a cleaning rod and a motor, the bottom of the cleaning rod is arranged to be in a semicircular shape matched with the radius of a floating ball of the liquid level sensor, and automatic and accurate control over cooling liquid can be achieved.
Owner:YANTAI DEV ZONE BOSEN TECH DEV CO LTD

Dam piping checking method, device, system and equipment

The invention discloses a dam piping checking method, device, system and equipment, and relates to the field of dam piping detection. The method comprises the following steps: determining a first piping suspected point from a thermal infrared image; determining a second piping suspected point in the visible light image; determining the same piping suspected point in the first piping suspected point and the second piping suspected point as a first piping point; reconstructing a three-dimensional terrain digital elevation model according to the laser point cloud data; determining the material type of an object in the target dam investigation area according to the laser radar reflection signal; matching objects in the first piping suspected point, the three-dimensional terrain digital elevation model and the target dam troubleshooting area; according to the matched three-dimensional terrain digital elevation model and the material type of the object, misjudged piping suspected points in the first piping suspected points are deleted, and second piping points are obtained; and determining the first piping point and the second piping point as the piping points of the target dam investigation area. According to the invention, the accuracy of dam piping point troubleshooting can be greatly improved.
Owner:RURAL ELECTRIFICATION RES INST OF THE MINISTRY OF WATER RESOURCES +1

Modular mobile heat generation unit for generation of geothermal power in organic rankine cycle operations

Systems and methods for generating electrical power in an organic Rankine cycle (ORC) operation include one or more heat exchangers incorporated into mobile heat generation units, and which will receive a heated fluid flow from one or more heat sources, and transfer heat therefrom to a working fluid that is circulated through an ORC unit for generation of power. In embodiments, the mobile heat generation units comprise pre-packaged modules with one or more heat exchangers connected to a pump of a recirculation system, including an array of piping, such that each mobile heat generation unit can be transported to the site and installed as a substantially stand-alone module or heat generation assembly.
Owner:ICE THERMAL HARVESTING LLC

Fire protection systems and methods using fire protection devices installed in pipe fittings with an internally housed seal member

Fire protection systems and methods having piping interconnections for connecting a fire protection device to a fluid source. The piping interconnections include a branch connector connected to a pipe header. The branch connector includes a tubular member and an internal annular seal member housed in an internal gasket chamber of the tubular member. The tubular member includes an internal stepless surface between a terminal end of the tubular member and the internal gasket chamber.
Owner:MINIMAX VIKING PATENT MANAGEMENT GMBH

Ship pipeline design drawing stage management method and system

The invention relates to the technical field of ship manufacturing intelligent management, in particular to a ship pipeline design drawing stage management method and a ship pipeline design drawing stage management system. Production schedule and process specification data are acquired and processed in a structured mode, a standardized input set is constructed, conflict resolution and progress and cost optimization are carried out by utilizing a multi-objective optimization engine; a four-dimensional model, semantic verification and dynamic scheduling are combined to generate a preliminary pipeline scheme, construction drawings and animations are output after three-dimensional simulation verification, feedback is collected in real time in construction, secondary scheduling and optimization are triggered, continuous iteration and accurate execution of design are achieved, and through intelligent decision making of a multi-target optimization engine, the design drawing efficiency can be improved by 40% or above. Meanwhile, the design error rate is reduced by 90%, and later reworking is greatly reduced.
Owner:AVIC WEIHAI SHIPYARD

LNG (Liquefied Natural Gas) fuel supply system of high-pressure main engine

The invention discloses a high-pressure main engine LNG fuel supply system, and relates to the technical field of LNG fuel high-pressure main engines, the high-pressure main engine LNG fuel supply system comprises a pressurization unit, an evaporation unit and a conveying unit, a fuel inlet of a high-pressure evaporator of the evaporation unit is connected with a high-pressure liquid supply pipe, and a fuel gas outlet of the high-pressure evaporator is connected with a high-pressure gas outlet pipe; a heating medium inlet of the high-pressure evaporator is connected with a steam pipeline, a heating medium outlet of the high-pressure evaporator is connected with a condensate water pipeline, and the condensate water pipeline is emptied. The steam pipeline is connected with the heating medium inlet of the high-pressure evaporator, and the heating medium outlet of the high-pressure evaporator is connected with the condensate water pipeline, so that steam is directly introduced into the high-pressure evaporator, a steam direct heating mode is adopted, a middle heating medium circulating pipeline is omitted, and the system efficiency is improved; and the condensate water is discharged in an open mode, the safety of the system can be guaranteed essentially, leaked gas cannot be brought back to a safety area, and therefore the reliability of the ship is improved.
Owner:恒力造船(大连)有限公司

Double-gas-path gas source system and double-gas-path heart assisting system

The utility model discloses a double-gas-path gas source system and a double-gas-path heart auxiliary system. The double-air-path heart assisting system comprises a pressure generating mechanism which alternately generates positive pressure and negative pressure when working; the first auxiliary device comprises first driven equipment and a first piping pipeline, a pipe body at the farthest end of the first piping pipeline is provided with an inflow channel and an outflow channel, and the first driven equipment is located in the pipe body of the first piping pipeline and corresponds to the outflow channel in position; the second auxiliary device comprises second driven equipment and a second piping pipeline communicated with the second driven equipment; the pressure generating mechanism enables the second driven device to repeatedly expand and contract through the second piping. The detection device is used for acquiring the pressure in the cardiac chamber and the pressure in the aorta; and the control mechanism is used for controlling the pressure generation mechanism to respectively drive the first driven equipment and the second driven equipment according to the corresponding time sequence in a cycle control period according to the pressure signal sent by the detection device.
Owner:SELGENS SCI CO LTD

Intelligent diesel generating set

The utility model provides an intelligent diesel generating set which comprises a mounting plate, one end of a radiating pipe is fixedly communicated with a water collecting pipe, the bottom of the water collecting pipe is fixedly communicated with a water return pipe, the water return pipe is fixedly communicated with a cooling liquid tank, and a communicating pipe is provided with a one-way valve. A temperature control assembly is arranged, a water pump pumps out cooling liquid in a cooling liquid box, the cooling liquid enters a heat dissipation pipe through a water distribution pipe and exchanges heat with air, the cooling liquid is subjected to heat dissipation and cooling, the cooled cooling liquid flows back into the cooling liquid box through a water return pipe, and low-temperature cooling liquid in the cooling liquid box flows back into the cooling liquid box again through a communicating pipe; and the diesel generator is continuously cooled. When the temperature is low, the water pumps are closed, cooling liquid in the cooling liquid box is not cooled, viscosity of engine oil is reduced, different water pumps are started to cool different diesel generators, independent control over the generator set is facilitated, and it is guaranteed that the temperature of each diesel generator is kept stable.
Owner:ZHEJIANG UNIVPOWER MACHINERY

Ship piping system design assisting method based on knowledge graph

The invention provides a ship management system design assisting method based on a knowledge graph, which comprises the following steps of: processing scattered design documents and design criteria of enterprises by utilizing a natural language processing technology, extracting knowledge triple information in the design documents and design criteria, and on the basis of the constructed knowledge graph, further utilizing a retrieval enhancement generation (RAG) technology to generate a knowledge triple; according to the method, subjective query of design information of a graph database is achieved, analysis and proofreading of design information graph-text and document data corresponding to design drawings and models are achieved, and finally design requirement query and automatic check of the design drawings and models in the design process of aided designers are achieved. Integration and sharing of design knowledge are completed, and the design knowledge utilization rate is increased.
Owner:WUHAN UNIV OF TECH

Coolant distribution unit and control system

Embodiments of the invention provide a high density liquid cooling system including a rack, primary loop piping including a primary inlet, a primary outlet, a primary loop filter, and a primary bypass valve, and secondary loop piping including a secondary inlet, a secondary outlet, a first pump, a first filter downstream of the first pump, and a secondary bypass valve. The system includes a heat exchanger having a first side and a second side. When the primary bypass valve is open, at least a portion of the fluid in the primary loop piping flows through the primary inlet and the primary outlet without traversing the heat exchanger, and when the secondary bypass valve is open, at least a portion of the fluid in the secondary loop piping flows through the secondary inlet and the secondary outlet without traversing the heat exchanger.
Owner:HOFFMAN ENCLOSURES INC

IGCT single valve structure for converter valve

The invention belongs to the technical field of extra-high voltage direct current transmission, and discloses an IGCT single-valve structure for a converter valve. The IGCT single-valve structure comprises a shielding cover assembly, an IGCT valve string unit, a frame assembly, a water pipe assembly, a resistance-capacitance absorption assembly and a water-cooled reactor. Wherein the IGCT valve string unit, the water pipe assembly and the resistance-capacitance absorption assembly are arranged on the frame assembly, and the shielding cover assembly covers the periphery of the outer portion of the frame assembly; the water-cooling reactor is arranged in the shielding case assembly and connected with the frame assembly and the shielding case assembly, and the water pipe assembly is connected with a water path of the water-cooling radiator in the IGCT valve string unit and a water path of the water-cooling reactor. The problem of hidden danger of commutation failure in the traditional direct-current power transmission converter valve technology can be solved, the function of the circuit breaker is added, fault current can be blocked, the new single valve structure can replace the single valve layer of the traditional direct-current power transmission converter valve of the thyristor, and the engineering replacement cost and the operation difficulty are greatly reduced.
Owner:XIDIAN POWER RECTIFIER XIAN +1

Edge guards for pickleball paddles

The present teachings include edge guards for pickleball paddles, e.g., where such edge guards do not drastically impact the weight of a pickleball paddle. To this end, an edge guard may include piping or similar present at a junction of a face of a pickleball paddle and an edge portion thereof, but the edge guard may otherwise be minimalized or completely absent from the majority of the edge portion (and other portions) of the paddle. The present teachings may also or instead include a face attachment for pickleball paddles—e.g., a replacement playing surface—that includes an edge guard thereon, such as piping or similar. In this manner, the face attachment may have protected edges when coupled to, or isolated from, a pickleball paddle. The present teachings may also or instead include piping or the like that can be applied to a paddle to form an edge guard thereof.
Owner:SPORT SQUAD INC

Compressor system and method for realizing stable boundary control of gas compressor

The invention discloses a compressor system and a method for realizing stable boundary control of a gas compressor thereof, which can actively adjust parameters B of the system and realize switching of an instability mode of the gas compressor between surging and rotating stall by only depending on an independent, small and adjustable switching section on the premise of not modifying large basic hardware (such as a volute and a pipeline). According to the principle of the compressor system provided by the embodiment of the invention, the effective flow area is changed by adjusting the angle of the turbine guider, so that the stability boundary of an upstream gas compressor or a fan is actively expanded, low-cost and rapid adjustment of the stability of the gas compressor is realized, the research and development efficiency is improved, and the test period is effectively shortened. The compressor system provided by the embodiment of the invention has the characteristic of wide applicability, can be applied to an independent compression system part test environment, and can also be applied to a complex complete machine environment comprising a compression system.
Owner:TSINGHUA UNIVERSITY

Method of monitoring a condition prevailing inside a piping system with respect to an impairment due to accretion, abrasion or corrosion

A method of monitoring a condition prevailing inside a piping system with respect to an impairment due to accretion, abrasion or corrosion caused by fluid(s) flowing through the piping system is disclosed, comprising the steps of: installing at least two measurement devices susceptible to an impairment and configured to measure variables indicative of the impairment; wherein the measured variables include at least two variables exhibiting a different dependency on the impairment; continuously recording data including time series of measured values of the variables measured; based on training data included in the data determining a dynamic reference behavior of the variables corresponding to time dependent distributions of values of the variables to be expected of the measured values when the measurement devices are unimpaired; repeatedly determining a deviation between a monitored behavior of the measured values of the variables and the reference behavior.
Owner:ENDRESSHAUSER GRP SERVICES AG

Plasma processing device, plasma source, and plasma control method

This plasma processing device has a processing chamber, a substrate holding unit, and a plasma source. The processing chamber provides a processing space for a substrate. The substrate holding unit holds the substrate in the processing chamber. The plasma source is configured to supply plasma into the processing chamber and comprises a gas supply unit, piping, an electromagnetic wave generator, an electromagnetic wave supply unit, and a resonator array structure. The gas supply unit supplies a raw material gas. The piping connects the gas supply unit and the processing chamber. The electromagnetic wave generator generates electromagnetic waves for plasma excitation to be supplied into the piping. The electromagnetic wave supply unit supplies the electromagnetic waves into the piping via a dielectric window provided in the piping. The resonator array structure includes a plurality of resonators that can resonate with a magnetic field component of the electromagnetic waves, have a smaller size than the wavelength of the electromagnetic waves, and are disposed in the direction of the same plane surface.
Owner:TOKYO ELECTRON LTD

Fire suppression system

The present system provides an integrated fire suppression system that enables use of hybrid media fire-extinguishing systems and methods, and which includes all components in a single integrated control panel and cabinet, other than system piping to nozzles or emitters. The system enables the entire panel and cabinet to be inspected and analyzed, and installed, repaired, or maintained in a single operation, dramatically reducing time spent on site and reducing the qualifying process as well. The assembly of the panel is off-site, typically under the inspection of any qualifying agencies. Once assembled, the system can remain qualified for rapid installation at any future time, allowing easy replacement of faulty panels or consumables.
Owner:ACME GROUP LLC

Data acquisition method and system of driver for oil exploitation

The invention relates to the field of drilling ship manufacturing, in particular to a data acquisition method and system of a driver for oil exploitation. Six-degree-of-freedom motion data of a ship motion reference unit, pressure data of a hydraulic cylinder of a marine riser tensioner, hook load data of a drill string hung by a top driving system, torque data and radial acceleration data are synchronously collected, and collected multiple paths of signals are aggregated to form synchronous multi-source vibration data flow. According to the method, multiple types of vibration, load and pressure signals are synchronously collected and aggregated and segmented under the unified time reference in the operation process of the drilling ship, so that the consistency of multi-source data on the time scale is ensured, and the real dynamic coupling relation can be reflected by subsequent calculation; in the signal processing stage, key acceleration and pressure fluctuation information are extracted, and the actual working state of the marine riser system is represented through dynamic response characteristics constructed by the peak position, the peak amplitude and the power spectral density.
Owner:JINHU GOLD STONE DRILLING ENGINEERING TECHNOLOGY SERVICES CO LTD

A gas and steam power generation afterburning type heat-electricity decoupling system and a working mechanism thereof

A gas and steam power generation afterburning type heat-electricity decoupling system and a working mechanism thereof, characterized in that the system comprises a gas turbine power generation system, a power transmission and transformation system, a molten salt heat storage system and a steam power generation system; the gas turbine power generation system is connected with the molten salt heat storage system through a flue gas pipeline; the molten salt heat storage system is connected with the power transmission and transformation system through a cable; the gas turbine power generation system is connected with the power transmission and transformation system through a cable; the molten salt heat storage system is connected with the steam power generation system through a main steam pipeline and a backwater pipeline; and the steam power generation system is connected with the power transmission and transformation system through a cable. The system can realize complete heat-electricity decoupling in a green energy storage system, realize the functions of self-supply of external power, storage of green electricity or heat supply, increase the accommodation capacity of a power grid to green electricity, and enhance the stability, flexibility and safety of a new power system.
Owner:BEIJING GONGDA HUANNENG TECH CO LTD

Landfill gas extraction control system

A control system for controlling extraction of landfill gas from a landfill via a gas extraction system comprising well piping, the landfill gas having a first temperature when extracted, the control system comprising: a gas composition chamber coupled to the well piping and comprising at least one sensor configured to measure one or more characteristics of a landfill gas sample in the gas composition chamber; a temperature control mechanism configured to heat the landfill gas sample in the gas composition chamber to a second temperature at least a threshold amount greater than the first temperature; and a controller configured to control the at least one sensor to measure the one or more characteristics of the landfill gas sample in the gas composition chamber when a temperature of the landfill gas sample in the gas composition chamber is at least the threshold amount greater than the first temperature.
Owner:LOCI CONTROLS INC

Film type liquid cargo containment system, nitrogen pipeline installation method and low-temperature storage tank

The invention discloses a film type liquid cargo containment system which comprises a plane insulation module, a corner insulation module and a nitrogen pipeline, the plane insulation module and the corner insulation module are fastened on the inner wall of a storage tank cabin, and each of the plane insulation module and the corner insulation module is composed of a main layer insulation module and a secondary layer insulation module. The main layer insulation module is fixed above the secondary layer insulation module to form step surfaces, a first bridging module, a second bridging module and a corner region bridging module are respectively mounted on the step surfaces at different positions, and nitrogen pipe mounting grooves are formed in the first bridging module, the second bridging module and the corner region bridging module through which a nitrogen pipeline passes; the arranged nitrogen pipe mounting grooves are connected to form a nitrogen arrangement pipeline; the invention further discloses a nitrogen pipeline mounting method. According to the thin film type liquid cargo containment system, the nitrogen pipelines are embedded in the bridging modules, so that the flatness of the upper surface of the main layer insulation structure of the containment system can be kept, and the thin film type liquid cargo containment system is adaptive to more types of corrugated plate structures.
Owner:HUDONG ZHONGHUA SHIPBUILDINGGROUP

Self-adaptive cooperative control system for industrial fluid pipe network valve nodes

The invention relates to the field of industrial automation process control, and discloses a self-adaptive cooperative control system for industrial fluid pipe network valve nodes, which comprises control units distributed at the pipe network nodes, and the control units monitor target adjustment increment of controlled units and broadcast forecast signals. According to the method, the characteristic that the transmission speed of an electric signal is higher than the conduction speed of physical disturbance is utilized, the reverse feed-forward compensation amount is calculated and superposed according to a preset neighborhood influence weight table before the physical disturbance reaches an associated node, a digital reflex arc faster than physical response is constructed, the qualitative change of a control mode from lag correction to advanced immunity is realized, and the stability of the control mode is improved. Interlocking oscillation caused by the coupling effect of the multi-node network is suppressed, the load of the communication bus is ensured to be in a self-adaptive adjustment state while low computing power overhead is maintained, and the control real-time performance of large-scale networking is improved.
Owner:SHANGHAI KUNSHEN TECHNOLOGY CO LTD

Directed air ventilation for lowering temperature in enclosed generators

An enclosed generator system includes a turbine, the turbine having turbine discharge piping and an alternator mechanically connected to the turbine. The enclosed generator system also includes an enclosure, the turbine and the alternator mounted to a base frame of the enclosure, the enclosure including a cooling air inlet and an enclosure space. Further, the enclosed generator system includes cooling air ducting connected to the enclosure space and the cooling air inlet and heated air ducting connected to the enclosure space and an exhaust enclosure. In addition, the enclosed generator system includes an exhaust stack, the exhaust stack connected to the turbine discharge piping and a turbine exhaust exit, the exhaust stack positioned within the exhaust enclosure.
Owner:STEWART & STEVENSON LLC

Smoke prevention and exhaust air pipe used in vertical piping shaft

The utility model relates to the technical field of ventilation pipelines, and discloses a smoke prevention and exhaust air pipe used in a vertical piping shaft, which comprises a smoke prevention and exhaust air pipe body and mounting boxes fixed on the front side and the rear side of the inner wall of the smoke prevention and exhaust air pipe body, and further comprises driving motors fixed at the bottoms of the inner walls of the mounting boxes, a threaded rod is rotationally connected to the upper portion of the inner wall of the mounting box, the bottom end of the threaded rod is fixedly connected with an output shaft of the driving motor, and a lifting block is slidably connected to the upper portion of the inner wall of the mounting box. The air pipe has a cleaning function, the inner wall of the pipeline can be automatically brushed at regular intervals through the built-in automatic cleaning system, the cleaning efficiency is greatly improved, the system shutdown time caused by manual cleaning is shortened through automatic cleaning, continuous and effective operation of a smoke prevention and exhaust system is guaranteed, and the service life of the air pipe is prolonged. Oil dirt and impurities on the inner wall of the pipeline are regularly cleaned, the pipeline can be kept unobstructed, and the smoke exhaust efficiency of the smoke prevention and exhaust system is improved.
Owner:SHANGHAI QIANCHENG FIRE ENGINEERING CO LTD

Condensate water treatment system of refrigeration type range hood

A condensate water treatment system of a refrigeration type range hood is characterized in that in a condensate water receiving box on an evaporator, water in the water receiving box is conveyed to a condenser, water flowing back from the condenser flows back to the water receiving box through a water return pipe, the condensate water treatment system further comprises a cooling fan, a steam generator and a spraying pipe, the condenser is arranged on the upstream of the cooling fan in the air flowing direction, and the steam generator is arranged on the water receiving box. The spraying pipe is arranged in an air channel between the air outlet side of the condenser and the air inlet of the cooling fan, a steam outlet of the steam generator is communicated with an inlet of the spraying pipe, and a shutter grating with adjustable blade opening angles is installed on the air inlet side of the condenser. According to the condensate water treatment system of the refrigeration type range hood, air conditioner condensate water is adopted to clean the condenser, external water can be heated through the steam generator to generate high-temperature steam, the high-temperature steam is sprayed out of the spraying pipe to clean the condenser, and according to different working modes, the condensate water treatment efficiency is improved. And the opening angle of the blades of the shutter grille can be adjusted, and the intelligent degree is high.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Heat exchange structure and air conditioner

The utility model provides a heat exchange structure and an air conditioner. The heat exchange structure comprises a first heat exchanger and a second heat exchanger, a second heat exchanger; the pipeline structure is connected with the first heat exchanger and the second heat exchanger; and the control module is used for controlling the flow direction of fluid in the pipeline structure, so that the heat exchange structure has a refrigeration parallel connection mode, a refrigeration series connection mode, a heating mode, a heating defrosting mode and a defrosting mode. The heat exchange structure solves the technical problem that a heat exchanger structure with an alternate defrosting function in the prior art is poor in heat exchange effect.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

Pipeline route design method based on single-pipe mathematical model

The invention provides a pipeline route design method based on a single-pipe mathematical model. The method comprises the following steps that a three-dimensional vertical section and a UCS coordinate system are determined according to a live-action three-dimensional model of a pipeline laying target area; establishing a single-tube mathematical model according to the three-dimensional longitudinal section and a UCS coordinate system; according to the single-pipe mathematical model, micro-piping laying is carried out on the pipeline; in the process of laying the micro-piping on the pipeline, calculating a direction similarity index according to the similarity between the pipeline shape and the pipe ditch shape; calculating a stress accumulation index according to the elastic modulus and the inertia moment; and constructing a total cost calculation model based on pipeline laying, and performing cost optimization based on the direction similarity index and the stress accumulation index so as to optimize the pipeline laying micro-piping. The method has the technical effects that the laying design precision and efficiency are remarkably improved, the cost is reduced, and the safety of the system can be enhanced.
Owner:CHINA GASOLINEEUM PIPELINE ENG CORP +2

Ultrasonic method and system for fluid quality measurement, classification, and monitoring

A system and method for determining fluid quality or change in quality by training machine learning algorithms using ultrasound Fast Fourier Transform (FFT) signatures. The system includes one or more ultrasonic transducers embedded inside or outside of a pipe, piping, or vessel that allows a fluid to flow past or between the ultrasound transducers. The transducer's acoustic energy creates ultrasound pressure waves and localized heat due to acoustic cavitation. The cavitation creates bubbles that collapse creating ultrasound sonic energy in the time domain. Unique sonic time-domain signatures, distinctively associated with the characteristics of the fluids, are converted to FFTs to produce unique, well-defined frequency response signatures. Machine learning algorithms are used to identify, measure, and classify the unique frequency response signatures associated with a wide range of fluids.
Owner:BERKELEY SPRINGS INSTRUMENTS LLC