400 results about "Energy exchange" patented technology

The invention provides a time division multiplexing multi-parameter synchronous sensing method and system based on a multi-core optical fiber. A multi-core optical fiber containing three heterogeneous fiber cores is embedded into a measured object, and a distributed reflection grating array forming an inclined angle with the axial direction is inscribed on the surface of each fiber core; energy exchange data between modes of all fiber cores and reflection grating wavelength shift signals are synchronously collected by adopting a time division multiplexing technology, phase difference signals are extracted through a cross correlation algorithm to serve as curvature reference values, dynamic compensation operation is carried out on the wavelength shift data and the phase signals, and accurate strain distribution is obtained after temperature interference is effectively eliminated; a coordinate transformation model is established by combining the three-dimensional geometric parameters of the spiral optical fiber, vector synthesis is performed on the curvature reference and the strain parameters, and accurate reconstruction of the three-dimensional deformation field of the measured object is realized. According to the technical scheme provided by the invention, through multi-core fiber multi-parameter synchronous sensing and three-dimensional coordinate mapping, temperature self-compensation high-precision three-dimensional deformation field real-time reconstruction is realized.

The invention discloses an air conditioning-storage-charging micro-grid and power distribution network collaborative optimization control method, which comprises the steps of constructing a multi-target optimization model with low carbon, economical efficiency and low load as targets, and realizing dynamic prediction and rolling optimization of a system state based on model prediction control; introducing an online decision-making tool, and dynamically adjusting an energy exchange strategy of the micro-grid and the power distribution network according to the air quality and the operation state; and the control effect is verified through system simulation. Compared with an existing static optimization method, the method has the advantages that dynamic cooperative mutual aid control under multiple targets is achieved, higher real-time performance, higher adaptive capacity and higher operation efficiency are achieved, and the stability and the overall performance of a building energy system in a complex environment are remarkably improved.

The invention relates to the technical field of energy exchange transportation and low-carbon operation and maintenance, in particular to an expressway service area carbon emission prediction method based on space-time diagram embedding, and the method comprises the steps: obtaining a portal frame and vehicle passing counting streams of entrances and exits of all service areas, constructing a dynamic topology and space-time prediction frame based on corridor-level tensors, and carrying out the prediction of the vehicle passing counting streams. Generating a traffic flow embedding vector and a comprehensive parking intensity curve; the method comprises the following steps: mapping a service area into an intelligent agent by combining a comprehensive parking intensity curve, dividing a scheduling cluster, carrying out three-section carbon pulse penalty and distributed strategy gradient training, freezing an intelligent agent strategy, generating an emission matrix and a thermodynamic diagram based on a power plan and an emission factor library, and comparing predicted and actually measured emission splitting errors to obtain a scheduling result. By generating the corridor-level emission matrix and the thermodynamic diagram, the predicted emission and the actually measured data are compared grid by grid, the traffic flow embedding distortion and the equipment strategy drift error are split by adopting the double-pointer method, and the long-term stability of the carbon emission prediction precision and the scheduling effect is ensured.

The invention belongs to the technical field of carbon dioxide capture and utilization and geological sequestration, and discloses a numerical simulation method for migration of CO2 in stratum.The method comprises the steps that an actual stratum complex geological model is constructed, and then a numerical simulation model is obtained; finely adjusting the numerical simulation model to limit fluid channeling and external substance and energy exchange, and ensuring rapid convergence of operation; the injection of CO2 in different layers is simulated, and the influence of the injection layers on the migration law is analyzed; cO2 injection at different injection speeds and temperatures is simulated to analyze the influence of the injection speeds and temperatures on the migration law; cO2 is simulated to be injected at different injection temperatures under the condition of consistent initial salt concentration, and the influence of dissolved salt on migration and dissolution rules is analyzed; the injection of CO2 at different positions of the reservoir is simulated, and the influence of the injection well position on CO2 storage is analyzed; and optimizing well position arrangement to obtain an optimal well pattern scheme. According to the method, the results of various influence factors are comprehensively analyzed, and then the migration rule of CO2 in the stratum is accurately obtained.

The invention relates to the technical field of civil construction engineering, in particular to effective utilization of geothermal resources and improvement of an energy exchange system. According to the energy pile, dynamic regulation and control of stratum heat balance are achieved through the active heat management technology, and the influence of heat accumulation on sustainable utilization of geothermal resources is effectively prevented; a composite heat extraction structure is adopted, and the heat absorption efficiency of geothermal resources is remarkably improved; a high-thermal-conductivity energy pile comprises a fixed base body, and a water circulation assembly is embedded in the fixed base body. The water circulation assembly comprises a water pumping assembly, a circulation pipeline and a water conveying assembly which are communicated with one another; a heat absorption device is arranged on the outer side of the fixed base body and comprises a plurality of heat absorption columns which are vertically distributed; the heat absorption column is provided with a heat conduction head embedded into the fixed base body.

The utility model discloses an ozone tail gas membrane pool release system which comprises a membrane pool, an ozone reaction pool, an ozone generation assembly and a tail gas utilization assembly. A membrane module is arranged in the membrane tank, a water production port of the membrane module is communicated to the ozone reaction tank, and the ozone reaction tank is provided with a tail gas outlet. The ozone generation assembly comprises a high-pressure oxygen supply pipe, an ozone generator, a first aerator and a second aerator, the first aerator is arranged in the ozone reaction tank, the second aerator is arranged in the membrane tank, and the ozone generator is communicated with the first aerator to provide ozone for the ozone reaction tank; the tail gas utilization assembly comprises an energy exchange device, a tail gas outlet communicates with the low-pressure side of the energy exchange device, an outlet of the low-pressure side communicates with the second aerator, a high-pressure oxygen supply pipe communicates with the high-pressure side of the energy exchange device, and an outlet of the high-pressure side communicates with an air inlet of the ozone generator.

The invention particularly discloses an ocean mesoscale vortex energy conversion analysis method, and relates to the technical field of ocean dynamics. The method comprises the following steps: firstly, determining basic characteristics of a target vortex based on satellite remote sensing and observation data, obtaining high-resolution gridding data, determining a vortex center and a boundary by using a vortex detection algorithm, and constructing a trajectory through a tracking algorithm; secondly, energy conversion of the vortex and the average flow is quantified by means of an oblique pressure conversion term and a positive pressure conversion term; and finally, the contribution of power items such as positive pressure instability, oblique pressure conversion and wind stress input to the vortex kinetic energy is quantified by utilizing a vortex kinetic energy contracting and expanding equation. According to the method, the detection precision of the weak-amplitude and short-life vortex is improved, quantitative calculation of vortex energy exchange is realized, and the method can be widely applied to vortex energy income and expenditure analysis.

The embodiment of the invention provides a remote area-oriented electric energy quality comprehensive treatment method and system, and the method comprises the steps: collecting the operation parameters of a power grid through a detection module; calculating an electric energy quality index based on the power grid operation parameters, carrying out standardization processing on the electric energy quality index, and constructing a state vector; inputting the state vector into energy management software based on an improved DQN algorithm model, and generating a charging and discharging power instruction corresponding to the hybrid energy storage unit; and receiving the charging and discharging power instruction through the power conversion module, and controlling the hybrid energy storage unit and the power grid to perform energy exchange so as to realize electric energy quality treatment. According to the technical scheme provided by the invention, adaptation to a complex power grid in a remote region can be realized, a multi-dimensional power quality problem can be synergistically treated, the response speed and the system safety are improved, the power quality comprehensive index and the system operation efficiency are finally improved, and a support is provided for safe, stable and efficient operation of the power grid in the remote region.

The invention provides a crop growth monitoring analysis system and method based on machine learning, and belongs to the technical field of crop growth monitoring. The monitoring analysis system comprises a data acquisition module used for acquiring biomechanical characteristic data of crops and energy exchange data of an SPAC system; the data processing module is used for preprocessing the data to generate a mechanical feature set and an SPAC feature set; the model construction module is used for constructing a multi-layer model architecture which comprises feature association, crop growth state evaluation and crop growth abnormal condition cause traceability reasoning; the model training module is used for constructing a training data set, training the multi-layer model architecture in combination with a transfer learning strategy, and updating the multi-layer model architecture by utilizing an optimization mechanism; and the monitoring analysis output module is used for visually displaying a crop growth monitoring analysis result and generating corresponding farming suggestions and measures. According to the method, the accuracy of stress risk early warning is improved, the model adaptability is improved, and the long-term monitoring precision stability of the model is improved.

The invention relates to the cross technical field of community energy management and electric vehicle charging technology, in particular to a community micro-grid system based on vehicle-network interaction and a control method thereof, the system adopts an alternating current bus framework to realize bidirectional energy exchange, and the system comprises an intelligent micro-grid power distribution unit used for distribution, monitoring and management of electric power in a community, dynamically adjusting a power distribution scheme; the charging pile is used for receiving the vehicle information and transmitting the vehicle information to the intelligent micro-grid power distribution unit to discharge the power grid and charge the vehicle; the comprehensive management platform comprises an energy management platform and a vehicle operation platform, performs bidirectional energy exchange on the vehicle and the intelligent micro-grid power distribution unit, and cooperates with the intelligent micro-grid power distribution unit and the charging pile to manage the vehicle; the method optimizes the load of the community power grid, reasonably adjusts the charging and discharging events and power of the electric vehicles, reduces the load pressure of the power grid in the peak period, can meet the charging demands of the electric vehicles in the community, and also reduces the construction and transformation cost of the power grid.

The invention discloses a smart park energy management method and system, and particularly relates to the field of smart park energy distributed storage management, and the method comprises the steps: obtaining state data through collecting the energy state parameters of energy storage equipment, dividing the state data into equal-length time slices according to a time sequence, and storing the equal-length time slices; the power change rate, the load offset and the output difference value are counted in each equal-length time slice, and the statistical result is combined with the charging moment, the discharging moment, the power value and the write-in time to generate an operation record; according to the method, the charging power and the discharging power of the distributed energy storage equipment are uniformly planned according to the equal-length time slices, the scheduling matrix is constructed in combination with the capacity boundary condition, and the operation intentions of the equipment are synchronized before execution so as to quickly identify and eliminate the cross-node conflicts; therefore, the problems of energy exchange bus contention, storage queue blockage and log loss caused by a multi-autonomous-equipment parallel triggering strategy in a traditional scheme are solved.

The invention discloses an electric vehicle time sequence classification aggregation frequency modulation optimization model considering responsivity. The model comprises the following steps: establishing a power energy operation boundary for performing energy exchange of an EV; classifying each single EV according to the EV network access time and the network access time period, and aggregating the power operation boundary and the energy operation boundary of the single EVs with the same network access time period to obtain an EVA time sequence classification aggregation model; depicting the relationship between different types of EV responsivity and price excitation through the Weber-Fechner law according to the EV classification to obtain an EVA time sequence classification aggregation model considering the responsivity under charging and discharging excitation; and by considering the day-ahead and real-time two-stage income and cost of the EV participating in the energy-frequency modulation market after EV classification aggregation, and by taking the maximum EVA operation income as a target, establishing an EVA time sequence classification aggregation frequency modulation optimization model capable of giving consideration to both precision and efficiency. The model is used for accurately and efficiently evaluating the EVA frequency modulation capability, formulating an incentive mechanism and optimizing an EVA operation strategy.

The invention provides a multi-family energy storage cooperative power supply system and method based on neighborhood elasticity, and relates to the technical field of power systems and energy storage. The system comprises: a neighborhood discovery module, which is used for establishing a collaborative micro-grid when a grid fault occurs; the off-grid switching module is used for forming an island micro-grid to supply power to neighborhoods; the power supply reputation module is used for calculating a reputation integral value of each family node; the power scheduling control module is used for generating a power scheduling instruction according to the power utilization demand, the energy storage state and the reputation integral; and the grid-connected clearing module is used for automatically calculating an energy exchange clearing result after the power grid is recovered. The method correspondingly comprises the steps of networking and switching, cooperative power supply, grid connection and liquidation and the like. According to the invention, the reliability and toughness of community emergency power supply can be improved, and full-process automatic management is realized.

The invention discloses a point-to-point energy scheduling method, device, equipment and medium for a multi-energy micro-grid, and the method comprises the steps: constructing a multi-energy micro-grid optimization model containing power, gas and heat energy according to the network coupling constraint, equipment characteristic constraint and scheduling operation constraint of an energy micro-grid; carrying out distributed iteration solution on the multi-energy microgrid optimization model by adopting an alternating direction multiplier algorithm to obtain P2P energy exchange capacity among the microgrids; on the basis of the P2P energy exchange capacity, calculating a P2P energy exchange price by adopting a RBS (Rupinstein bargaining solution) strategy to obtain an excitation signal of micro-grid energy exchange; and obtaining a comprehensive scheduling scheme of the microgrid according to the P2P energy exchange capacity and the excitation signal. According to the invention, multi-energy cooperation can be carried out, information security is guaranteed, and interaction fairness and resource utilization rate are improved.

The invention provides a transformer oil circulation intelligent cooling method and system. Wherein the dynamic correlation model is constructed by detecting temperature and flow velocity data of different depths in the transformer, and periodic direction deflection control is applied in an oil flow path to form spiral rotation disturbance so as to trigger local energy exchange. And based on the predicted oil temperature evolution trend, the power intensity and disturbance amplitude parameters of the oil pump are synchronously adjusted, and dynamic balance between the flowing state and temperature distribution is established. And in combination with disturbance trajectory offset characteristics, dynamically matching frequency and phase parameters of direction deflection, so that the heat conduction direction and the main stream direction form directional cooperation. And model parameters are updated by utilizing heat conduction path characteristics and dynamic balance constraints, and a control instruction for inhibiting temperature sudden change is generated through reverse constraints, so that intelligent cooling regulation and control are realized. According to the technical scheme, oil flow is regulated and controlled through cooperation of spiral disturbance and the dynamic model, sudden temperature change is restrained, heat conduction is optimized, and the cooling efficiency and stability of the transformer are improved.

A coupling system for liquefied natural gas re-gasification and liquid air energy storage. The coupling system comprises a liquefied natural gas re-gasification system and a liquid air energy storage system. The liquefied natural gas re-gasification system comprises: a heat exchanger-natural gas (HX-NG) connected to a liquefied natural gas re-gasification path. The liquid air energy storage system comprises: a heat exchanger-charge (HX-C) connected to a main gas liquefaction path, a heat exchanger-discharge (HX-DC) connected to a liquefied main gas re-gasification path, and a cold dewar (CD), wherein a first heat exchange cycle where cold energy exchange is performed with a first heat exchange medium is formed between the heat exchanger-natural gas and the heat exchanger-charge; and a second heat exchange cycle where cold energy exchange is performed with a second heat exchange medium is formed among the heat exchanger-charge, the cold dewar and the heat exchanger-discharge. In the first heat exchange cycle, a hot end of the heat exchanger-natural gas is connected to a hot end of the heat exchanger-charge, and a cold end of the heat exchanger-natural gas is connected to a cold end of the heat exchanger-charge; and in the second heat exchange cycle, hot ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected, and cold ends of the heat exchanger-charge, the cold dewar and the heat exchanger-discharge are connected. In the present invention, regardless of whether the liquid air energy storage system is in a charging working state, a standing working state or a discharging working state, effective coupling utilization of cold energy and heat energy between the liquid air energy storage system and the liquefied natural gas re-gasification system can be realized, improving the effective coupling utilization rate of cold energy and heat energy between the systems.

The invention relates to the technical field of liquid flow energy storage batteries, and provides a liquid flow energy storage capacity integration system which comprises a system body, the system body comprises a container, a negative electrode storage tank and a positive electrode storage tank, the negative electrode storage tank and the positive electrode storage tank are installed in the container, and an electric pile power system is connected to the upper end of the container. Circulating systems are arranged between the cathode storage tank and the galvanic pile power system and between the anode storage tank and the galvanic pile power system and used for electrolyte flowing, each circulating system comprises a liquid inlet component connected to the galvanic pile power system through the storage tank and a backflow component connected to the storage tank through the galvanic pile power system, and an evaporator for energy exchange is arranged in the backflow component connected to the storage tank through the galvanic pile power system. The evaporator comprises an outer shell and heat exchange pipes circumferentially arranged in the shell, the multiple heat exchange pipes distributed circumferentially are arranged, then spiral blades are installed in the space formed in the heat exchange pipes, and the spiral blades can guide liquid in the center of the evaporator in the radial direction; and therefore, the electrolyte can be in more sufficient contact with the heat exchange tube to realize heat exchange.

The utility model provides a voltage sag resistant circuit and a motor, the circuit comprises an energy storage module, the energy storage module comprises a first capacitor, a second capacitor, a first diode, a second diode and a third diode, the second end of the first capacitor is connected to the cathode of a first diode, and the anode of the first diode is grounded; the cathode of the second diode is connected to the energy exchange end of the circuit, the anode of the second diode is connected to the first end of the second capacitor, and the second end of the second capacitor is grounded; the anode of the third diode is connected between the first capacitor and the first diode, and the cathode of the third diode is connected between the second diode and the second capacitor. According to the anti-voltage sag circuit and the motor, the motor can be kept running continuously when voltage sag occurs. In addition, the circuit and the motor are small in size and low in cost, and the power factor of the system can be improved.

The invention discloses a virtual power plant transaction method based on a traffic-energy fusion scene, and belongs to the technical field of virtual power plant transaction, and the method comprises the following steps: (1) traffic-energy data fusion collection and preprocessing; (2) carrying out hierarchical resource aggregation and state evaluation; (3) dynamic transaction demand prediction and matching; (4) block chain trusted execution and feedback optimization; and (5) battery full life cycle collaborative management. According to the invention, the efficient collaborative transaction of traffic and energy resources can be realized, the resource collaborative efficiency is greatly improved, the transaction response speed also meets the power grid demand, a trusted secure transaction system is constructed, the maximum utilization of the battery value is realized, and the economic benefit and the environmental benefit are remarkable.

The embodiment of the invention provides a compressed air energy storage system and method based on goaf heat storage regulation and control. The system is applied to the technical field of compressed air energy storage and comprises a heat storage goaf module, an energy storage sub-module and an energy release sub-module. The method comprises the following steps: in a power consumption trough period, an energy storage sub-module operates to compress ambient air to a high-temperature and high-pressure state; in the power utilization peak period, the energy release sub-module operates, heat energy is transmitted to high-pressure air which is pumped out of the air storage shaft and flows through the energy storage heater, and high-temperature and high-pressure air is formed to drive the turbo expander to generate electricity. After the turbo expander completes power generation, exhausted low-temperature and low-pressure air is introduced into a multi-stage cold energy exchange pipe network buried in the goaf, and an energy closed loop is achieved. In this way, the technical problems that in the prior art, due to inherent intermittency and uncertainty of renewable energy sources, grid-connected consumption is difficult, wind and light abandoning is serious every year, and the peak-valley difference of a power grid tends to be gradually increased can be solved.

A phase transformational cellular material, including a plurality of bistable cells, each respective bistable cell operationally connected to at least one other respective bistable cell. Each bistable cell enjoys a first stable phase and a second stable phase. The first stable phase is a first geometric configuration and the second stable phase is a second geometric configuration different from the first geometric configuration. An energy transaction is required to shift each respective cell between stable phases. A mechanical energy transaction is required to shift from the first to the second phase, while a thermal energy transaction is required to shift from the second to the first phase.

The invention provides a load side power distribution network system based on three-level energy storage balance, belongs to the technical field of traffic road area power distribution networks and energy storage, and aims to solve the problems that a traditional road area power distribution network frame is fragile, unreasonable in source-load matching, difficult in green power consumption and low in equipment utilization rate in a cross energy fusion process under a dual-carbon target. According to the scheme, the system comprises a first-stage energy storage unit (connected with a 35kV transformer substation), a second-stage energy storage unit (connected with a 10kV power supply line), a third-stage energy storage unit (connected with a load area distribution transformer), a photovoltaic power generation unit and a control unit. After the control unit obtains related data, the control unit dispatches each unit to charge and discharge according to the logic of priority three-level on-site balance, second-level cross-court balance and last-level centralized balance, and consumes surplus photovoltaic electric energy. According to the invention, power distribution network source load balance and electric energy on-site consumption are realized, the green power ratio and the power distribution network efficiency are improved, the power utilization cost is reduced, and the construction of a novel power system is facilitated.

A conditioning system includes a first plenum and a second plenum. The second plenum receives heated air from an enclosed space and supplies cooled air to the space. The system also includes a first liquid-to-air membrane energy exchanger (LAMEE1) arranged inside the first plenum. LAMEE1 is configured to use a liquid desiccant to lower an enthalpy of the first air stream. A LAMEE2 is arranged inside the first plenum downstream of LAMEE1. LAMEE2 is configured to use the first air stream to evaporatively cool water flowing through LAMEE2. A first LAHX (LAHX1) is arranged inside the second plenum. LAHX1 is configured to directly and sensibly cool the second air stream using a first cooling fluid. A second LAHX (LAHX2) is in fluid communication with LAMEE1 and is configured to receive the liquid desiccant from LAMEE1 and cool the liquid desiccant using outdoor air.

An add-on apparatus for improving the overall efficiency of a conventional air-source air conditioner or air-source heat pump is disclosed. The add-on apparatus is a combination of piping and at least one controllable valve that provides fluid and electric or electronic control communication between the host receiving air conditioner or heat pump piping circuit and a discretionary interacting energy exchange means. The add-on apparatus having connecting refrigerant gas piping and connecting refrigerant liquid piping for communicating fluids between the host and interacting energy source. The electric or electronic communication can employ self-teaching software and have the ability to override a conventional air conditioning or heat pump control system.

The invention relates to the technical field of power supply and distribution systems, and provides a fuel cell commercial vehicle power optimization method and system.The fuel cell commercial vehicle power optimization method comprises the following steps that a fuel cell and a power cell are combined to supply power to a load motor, and the power of the load motor is optimized according to the SOC state of the power cell; adjusting the power output of the fuel cell in different SOC states; and the SOC fluctuation state of the power battery is predicted, and the energy exchange between the power battery and the super capacitor is adjusted with the goal of minimizing the output power fluctuation frequency of the fuel battery. According to the method, the SOC fluctuation state of the power battery is predicted, energy exchange between the power battery and the super capacitor is adjusted in good time, power distribution is optimized with the goal of minimizing the output power fluctuation frequency of the fuel battery, and instability of power output of the fuel battery caused by fluctuation of the SOC near a critical value can be avoided; therefore, frequent power change of the fuel cell is reduced, and the service life is prolonged.

The invention provides an LBM large-deformation fluid-solid interface stabilization method and system based on energy flux regulation, and belongs to the technical field of computational fluid mechanics and solid mechanics coupling numerical simulation. Identifying a fluid-solid boundary area, and constructing a buffer layer area; solving fluid in a buffer layer area, and embedding an energy flux regulation mechanism; applying a load to the structure through fluid, and calculating a structure response; fluid is fed back, and the dynamic boundary is updated; and iterating repeatedly, and stopping and outputting after a set termination condition is reached. Active regulation and control of the fluid-structure interface energy exchange process are achieved, the numerical stability and physical precision of fluid-structure interaction simulation under the large deformation condition are remarkably improved, and the method has the advantages of being simple in structure, high in expandability and low in calculation overhead; the method is suitable for complex coupling scenes such as flexible structural body propulsion, airfoil pitching motion and high Reynolds number structural response analysis, and has wide engineering application value.

The invention relates to the field of high-frequency electronics, and discloses an ultra-wideband traveling wave tube which comprises a focusing control electron gun, a slow wave system and a three-stage depressed collector. The focusing control electron gun is used for providing stable electron beams and realizing effective focusing and acceleration of the electron beams through a cathode assembly, a heating wire, a bunching electrode and an anode assembly which are accurately designed; the slow wave system is composed of an input high frequency and an output high frequency, high-efficiency energy exchange between an input signal and an electron beam is ensured through a conical spiral line and a composite tube shell structure, and therefore signal amplification is achieved. The three-stage depressurization collector effectively recovers residual electron beams through a step-by-step depressurization design, energy loss is reduced, and the total efficiency of the traveling wave tube is improved. The traveling wave tube can provide output power exceeding 100 W in the frequency band of 2-18 GHz, the gain is larger than 25 dB, and the total efficiency is larger than 30%. Due to the excellent performance, the method can be widely applied to the fields of communication, radar, electronic countermeasures and the like.

The utility model provides a stepped heat dissipation structure and a liquid cooling module, comprising a stepped flow channel, the upper surface of the stepped flow channel is connected with a plurality of upper fins, and the lower surface of the stepped flow channel is connected with a plurality of lower fins; the flow collecting cavity is communicated with the lowermost step of the step-shaped flow channel and serves as the output end of the step heat dissipation structure; the uppermost step of the stepped flow channel is used as an input end to be communicated with an external pipeline; wherein the upper fin is provided with an extending part extending towards the interior of the step-shaped flow channel, and a preset distance is formed between the extending part and the lower surface of the interior of the step-shaped flow channel. By means of the upper fins extending into the flow channels, turbulent flow is conducted on fluid, the energy exchange area is increased, and the energy exchange efficiency is improved. Liquid level difference is generated through the flow channels arranged in a stepped mode, so that fluid can flow and accelerate automatically, and stop caused by turbulent flow of the upper fins is avoided. Meanwhile, fluid impact and splashing can be caused by going up and down stairs, and the heat exchange capacity is improved.

The utility model discloses a descaling machine of a waste heat exchange device, and relates to the technical field of waste heat energy exchange devices. The descaling machine of the waste heat exchange device comprises a heat exchanger, a fixed connecting seat is fixedly connected to the interior of the heat exchanger, a base is fixedly connected to the outer surface of the fixed connecting seat, a bearing seat is arranged on the outer surface of the fixed connecting seat, and a main transmission shaft and an auxiliary transmission shaft are fixedly connected to the interior of the bearing seat; a small transmission wheel and a large transmission wheel are fixedly connected to the outer surfaces of the main transmission shaft and the auxiliary transmission shaft, a driving transmission belt is arranged on the outer surface of the small transmission wheel, a driven transmission belt is arranged on the outer surface of the large transmission wheel, and a scraper or a brush is arranged on the outer surface of the driven transmission belt; according to the metal pipe cleaning device, a scraper or a brush is arranged on the driven transmission belt to wipe and clean a metal pipe, and the metal pipe cleaning device is convenient to use and efficient.

The utility model discloses an energy exchange conjoined photovoltaic greenhouse, a first greenhouse film, a photovoltaic panel and a waterproof breathable film enclose to form a first space, the waterproof breathable film and a wall body enclose to form a second space, energy exchange is carried out between the first space and the second space through the waterproof breathable film, and energy exchange is carried out between the first space and the second space through the waterproof breathable film. An unpowered draught fan is arranged on the first greenhouse film, a bidirectional draught fan is arranged on the wall body, a first space defined by the first greenhouse film, the photovoltaic panel and the waterproof breathable film and a second space defined by the waterproof breathable film and the wall body are arranged, and the energy temperature conversion process of the three spaces is achieved. And the energy and temperature conversion is a uniform process, hot gas rises, cold gas falls, the gas is exchanged by the waterproof breathable film, but water vapor does not run off and still flows into the greenhouse, so that the energy exchange efficiency is improved, and a more stable environment is provided for the greenhouse.