66 results about "Electricity conservation" patented technology

The invention belongs to the crossing field of artificial intelligence and industrial automation, particularly relates to an aeration fan frequency conversion group control energy-saving method based on an intelligent optimization algorithm, and aims to solve the problems of high energy consumption, response lag and large equipment loss of a traditional control mode. According to the method, parameters such as dissolved oxygen, flow and pressure are collected in real time, a nonlinear optimization model with minimum energy consumption, accurate oxygen supply and minimum start and stop as multiple targets is constructed, an optimal rotating speed distribution scheme is solved online by adopting an improved particle swarm algorithm, and a smooth slope instruction output and closed-loop feedback correction mechanism is combined, so that the optimal rotating speed distribution scheme is obtained. And dynamic self-adaptive adjustment of fan group control is realized. The energy-saving efficiency is remarkably improved by 18%-25%, the annual electricity is saved by more than 800000 kilowatt-hour, meanwhile, the load unevenness is reduced to below 8%, fan start and stop is reduced by 60%, the service life of equipment is prolonged by 2-3 years, hardware does not need to be newly added, the deployment period is short, investment recovery is fast, and the method is successfully applied to multiple sewage plants.

The present application relates to the technical field of heat pump, and provides a control method and device of a solar heat pump unit and the solar heat pump unit, the solar heat pump unit comprises a water tank, a heat pump module and a solar module for supplying heat to the water tank, the control method of the solar heat pump unit comprises: obtaining a setting mode of the solar heat pump unit; controlling the heat pump module and / or the solar module to start operation according to the setting mode of the solar heat pump unit; wherein the solar heat pump unit has multiple setting modes, and in the multiple setting modes, the degree of user's demand for hot water in the water tank is different. The present application combines the heat pump and the solar energy as a heat source, has multiple operating modes, can achieve the purpose of saving electricity, and can match the corresponding operating mode according to the setting demand of the user, has a wide range of applications, thereby effectively improving the user experience.

The invention discloses an industrial power-saving system and method based on multi-frequency-band conflict avoidance and energy feedback, and relates to the technical field of industrial power-saving systems.The method comprises the steps that a power grid fundamental wave synchronizing signal is obtained through a zero-cross detection circuit, an integrating circuit is input to generate a slope time-base signal, and the time-base signal is used for controlling the triggering moment of a high-frequency modulation pulse; the method comprises the following steps: modulating a pulse to intensively act on wave crest and wave trough areas of an AC voltage waveform, exciting an LC resonant circuit connected to a DC side of an electric energy conversion device by the modulating pulse to enable the LC resonant circuit to enter a quasi-resonant state in a phase interval, and actively releasing energy to a load by an energy storage capacitor; the system is controlled to be switched on preferentially, power supply competition for a main power supply is formed, main current output is correspondingly reduced on the premise that load power is not changed, energy conservation and consumption reduction are achieved, and the system further improves electric energy quality and operation stability through unified clock synchronization, phase out-of-sequence control, energy local circulation and impedance frequency band avoidance.

The invention provides a control method for realizing waste heat recovery of a circular cooler, which comprises the following steps of: calculating cooling air quantity required by a high-temperature section according to a waste gas temperature set value of the high-temperature section, a heat calculation value of a sintered ore block at a 1 # monitoring point, a heat calculation value of the sintered ore block at a 2 # monitoring point and a waste gas temperature of a low-temperature section; according to the waste gas temperature set value of the medium-temperature section, the heat calculation value of the sinter blocks at the second monitoring point and the heat calculation value of the sinter blocks at the third monitoring point, the cooling air volume needed by the medium-temperature section is calculated; and according to the heat calculation value of the sinter blocks at the 3 # monitoring point and the set average ore temperature and the heat set value of the sinter blocks at the 4 # monitoring point, the cooling air volume required by the low-temperature section is calculated. According to the system, full utilization of waste heat of the high-temperature section, the medium-temperature section and the low-temperature section and the normal cooling effect of the sinter in the circular cooler are achieved, and the triple purposes of controllable sinter cooling, waste heat recycling and frequency conversion electricity saving are achieved.

The utility model relates to the technical field of electrical connection, in particular to an electricity-saving and energy-saving terminal electrical comprehensive treatment protection module, which comprises a central control module used for data processing and circuit integral control, and an enhanced active power filter module used for adjusting three-phase imbalance, the bus capacitor module is used for balancing current of each phase through charging and discharging, and the enhanced active power filter module comprises a sampling module used for detecting voltage and current of a system side in real time; and the compensating current generating circuit is used for controlling the on-off of the three-phase circuit to absorb energy from the power grid and mutually convert the energy among the three-phase circuit so as to enable the three-phase current to reach a balanced state. According to the utility model, real-time detection of system side current can be carried out, on-off of the three-phase circuit is controlled, energy is absorbed from a power grid and is mutually converted among the three-phase circuit, so that three-phase current reaches a balance state, and the like, thereby eliminating total harmonic distortion of the power grid with low harmonic, compensating reactive power, improving power factor of the power grid, and reducing power consumption. And an energy-saving node effect is achieved.

The utility model discloses a power-saving card, which comprises an accommodating module and a light wave sensing component. Therefore, the power-saving card can be arranged on the switch, surge current and pulse voltage generated at the moment of circuit connection when the switch is started can be suppressed by using the light wave induction assembly, extra electric energy loss caused by overlarge fluctuation of current waveform is further reduced, and the current can be effectively applied by an electric appliance system connected with the rear end of the switch. And the effect of saving electric energy is achieved.

The application relates to the technical field of pipe extrusion, in particular to a power-saving furnace for seven-hole plum-blossom pipe extrusion forming with adjustable extrusion pipes, which comprises an extrusion furnace for melting materials and a pipe die set coaxially connected to the discharge end of the extrusion furnace, a storage rack is arranged outside the discharge end of the extrusion furnace, and a plurality of pipe die sets with different specifications are arranged for staggered sliding switching; the pipe die set is coaxially composed of an extrusion pipe, a pipe sleeve die and a plurality of pipe hole dies from outside to inside, a central shaft die is sleeved on the central shaft of the extrusion pipe, and a pipe material channel is formed between the extrusion pipe and the plurality of pipe hole dies and the central shaft die; and the plurality of pipe die sets are slidingly clamped on the storage shaft. The application can complete the quick disassembly of old dies and the accurate positioning and installation of new dies by suspending a plurality of pipe die sets with different specifications on the storage rack in a staggered mode; the technical effect that only the screw extrusion function needs to be stopped when plum-blossom pipes with different aperture specifications are replaced, and the extrusion furnace heating function does not need to be stopped is achieved; and the power-saving benefit is realized.

The application relates to the field of smart home, and discloses a household electrical appliance intelligent switch which comprises a smart electric meter module, a smart socket and switch module, a central control unit module, a user interface module, a communication module, a sensor module and a communication module. The household electrical appliance intelligent switch system provided by the application realizes intelligent control and power saving management of household electrical appliances through the cooperative work of the smart electric meter, the smart socket and switch, the sensor module, the central control unit, the user interface, the communication module and the analysis module. The system can automatically adjust the running time and power of the electrical appliances according to real-time electricity price, environmental parameters and user behavior, improve the comfort and convenience of family life, and optimize energy consumption and reduce costs.

The present application relates to the technical field of waste heat recycling, in particular to a method for converting industrial waste heat into low-pressure steam to drive ammonia adsorption refrigeration, comprising the following steps: Step 1: industrial waste heat collection and pretreatment, S1.1 waste heat classification collection: for different types of waste heat (slag waste heat, high-temperature flue gas, low-pressure steam, engine exhaust gas) in industrial production, special heat exchange devices are used for classification collection, wherein slag waste heat is recovered through indirect heat exchange devices; the present application efficiently recovers industrial low-grade waste heat and converts it into stable low-pressure steam of 0.3 MPa and above, and the waste heat utilization rate is increased to more than 85%; the refrigeration process does not consume high-grade energy, the main machine operates at zero cost, the comprehensive energy-saving rate is more than 77.8%, the annual electricity saving can reach 140,000 degrees per set, natural working substance ammonia is used as refrigerant, ammonia can be cyclically decomposed and compounded under natural conditions, and there is no greenhouse gas emission; fluorine-containing refrigerants such as freon are abandoned, atmospheric pollution is avoided from the source, and the green and low-carbon development trend is met.

The invention provides an energy consumption side electric power indirect carbon emission reduction analysis method and system. The method comprises the steps that multiple types of users of energy consumption side electricity utilization in a to-be-analyzed area are acquired; based on the year-on-year acceleration of the electricity consumption of the electricity-saving users in the class of users and the year-on-year acceleration of the electricity consumption of the electricity-saving users in the historical same period and the electricity consumption of the non-electricity-saving users in the class of users, calculating the total electricity Based on the electricity consumption of the second-class users and the electricity consumption benchmark value, calculating the total electricity saving amount of the second-class users; calculating indirect carbon emission reduction in the region by combining the total power saving amount, the power supply amount of green power in the region and the power carbon emission coefficient; the indirect carbon emission reduction amount is further quantified by quantifying the saved electricity quantity and combining the electricity carbon emission coefficient, the technical blank that the saved electricity quantity cannot be quantitatively calculated is filled, the indirect carbon emission calculation method for the energy consumption side electricity users is provided, and a basis is provided for social carbon emission reduction amount evaluation and carbon reduction path planning.

The application provides an oil-immersed transformer heat recovery process based on a magnetic suspension heat pump system, which comprises an insulating oil circulation loop, an oil-free magnetic suspension heat pump system, a modular heat energy recycling loop and a double-PLC control system; the oil-free magnetic suspension heat pump system comprises an oil-free magnetic suspension compressor, a multiple metal isolation and leakage detectable heat exchanger, an electronic expansion valve, a pipeline and a drying structure; heat recovery is realized through the following steps, direct emission of a large amount of waste heat to the atmosphere is avoided, the local exacerbation problem of urban "heat island effect" is relieved, the operation noise of the oil-free magnetic suspension compressor is far lower than that of a traditional large fan, on one hand, indirect power generation carbon emission is reduced through power saving, on the other hand, fossil fuel boiler is replaced by heat production, combustion carbon emission is directly reduced, meanwhile, the service life of the transformer is prolonged, and the hidden carbon emission in the equipment manufacturing and replacement process is reduced.

The utility model discloses an energy-saving carbon-reducing contract energy management air conditioner room power-saving device which comprises a machine room body, a filter plate is fixedly installed on one side of the machine room body, a shell is fixedly connected to one side of the machine room body and located at the top of the filter plate, and an electric push rod is fixedly connected to the right side of an inner cavity of the shell. The left side of the electric push rod is fixedly connected with a push plate, the bottom of the push plate is fixedly connected with a fixing rod, and the bottom of the fixing rod penetrates through the outer portion of the shell to be fixedly connected with a cleaning shell. The fixed rod moves to drive the cleaning shell and the cleaning brush to move, so that dust, fluff and impurities adsorbed on the surface of the filter plate can be conveniently cleaned, and the situation that the ventilation efficiency is affected due to the fact that the impurities are adsorbed on the surface of the filter plate is avoided.

The invention relates to an air plate heat exchanger, an air conditioning system and a control mode, and the air plate heat exchanger adjusts a refrigerant flow channel into a single flow channel, a double flow channel and a multi-flow channel according to factors such as a use object and heat exchange capability by controlling a flow mode of a plate heat exchanger channel. Various types of refrigerants circulate in the liquid flow channel, water, ethylene glycol and the like can circulate in the liquid flow channel, and the air conditioning system carrying the air plate type heat exchanger can be a household heating ventilation air conditioning system, a multi-split composite air conditioning system, a heat pump air conditioning system, a machine room precision air conditioner, a machine room precision fluorine pump air conditioner, a fluorine pump all-in-one machine air conditioning system and a phase change multi-split air conditioning system. A compression refrigeration mode, a composite mode and a fluorine pump mode can be switched according to the outdoor temperature and the indoor load. A water-free air cooling mode is designed in a water-deficient area, an evaporation and condensation mode is designed in a water-resource-sufficient area, and meanwhile, the water-free air cooling mode and the evaporation and condensation mode are applied to various data center cooling systems, so that natural cold sources are fully utilized, and energy saving and electricity saving of the data center are achieved.

The invention discloses a power utilization safety monitoring and power saving control method and platform. The method comprises the following steps: collecting power utilization data, identifying equipment access, and generating a risk grading result and a control access strategy according to an equipment portrait; triggering gating parameters are dynamically adjusted based on risk grading, triggering type capture is executed on the data, and a tamper-proof evidence chain is generated; the access strategy is read, and a power saving instruction is generated and issued in combination with a safety constraint condition dynamically generated based on the contact health degree; after the action is executed, an expected response reference trajectory in a fault-free state is constructed, a residual error between actual feedback and the expected trajectory is calculated to execute secondary risk verification, and a closed-loop evaluation result is output; and the model and constraint are updated through end-side cloud collaboratively. According to the method, the problem that the control action masks the weak risk is solved through the expected response residual analysis, the dynamic tightening of the safety boundary along with the equipment aging is realized by using the contact health degree model, and the probability that the power-saving control induces the secondary risk is reduced.

The invention discloses an efficient power-saving optimizer control method and device suitable for a power grid and a medium, and relates to the technical field of collaborative optimization control, and the method comprises the steps: obtaining the operation characteristic data of the power grid, and carrying out the matching of the operation characteristic data with a preset typical scene library; an electricity-saving optimizer of each regional power grid receives and formulates a local control strategy draft based on the historical marginal electricity-carbon signal and the new marginal electricity-carbon signal; the local control strategy draft is injected into the high-fidelity digital twinborn body for simulation check, and a check conclusion is generated; the power-saving optimizer of each regional power grid judges whether the instruction is a safe passing instruction or not according to the check conclusion: if yes, a local control strategy draft is executed; and if not, correcting the local control strategy draft and returning to the high-fidelity digital twin for re-checking. According to the invention, through carrying out cosine similarity matching on the power grid operation characteristic data and the preset typical scene library, cooperative utilization of historical regulation and control experience and operation mechanism rules is realized.

The utility model relates to the technical field of plastic extruders, in particular to a novel power-saving wet and dry heat conduction oil plastic plasticizing extruder which comprises an extruder body, a heating structure is arranged on the extruder body and comprises a plurality of heat exchange sleeves and baffles, the extruder body is fixedly connected with the heat exchange sleeves, fixing structures are arranged on the heat exchange sleeves, and the baffles are arranged on the baffles. Two baffles are clamped to the heat exchange sleeve, a plurality of short pipes are fixedly connected to the heat exchange sleeve, one ends of the short pipes located on one side of the heat exchange sleeve are fixedly connected with the same second transverse pipe, one ends of the short pipes located on the other side of the heat exchange sleeve are fixedly connected with the same first transverse pipe, and an oil inlet pipe is fixedly connected to the first transverse pipe. An extrusion screw rod is mounted in the extruder body; when oil dirt is formed in the heat exchange sleeve, the baffle can be rapidly detached from the heat exchange sleeve, then the oil dirt in the heat exchange sleeve can be cleaned, the situation that the heat conduction efficiency is reduced by the oil dirt is avoided, and therefore the heating effect is effectively guaranteed.

The invention provides a carbon value evaluation method, and belongs to the field of new energy automobile technology, energy efficiency management and data analysis, and the method comprises the steps: carrying out the integration of instantaneous power saving values under the same working condition before and after the improvement of a new energy automobile battery temperature control system, obtaining the annual total power saving amount of the system, and obtaining the annual carbon emission reduction amount through combining with a power grid carbon emission factor; determining the size of a reference carbon price window through an adaptive moving window algorithm, and calculating a reference carbon price; and determining a carbon emission reduction environment quantification parameter and a traditional power saving quantification parameter based on the parameters, and summing the two parameters to obtain a carbon value comprehensive quantification evaluation parameter. According to the method, the power-saving income and the carbon emission reduction value are considered, comprehensive and accurate evaluation of the improvement value of the temperature control system is realized, and reliable data support is provided for technical model selection and optimization of the temperature control system.

The invention provides a charge balancing method and system for a battery pack. The method comprises the following steps: when a battery pack is in a charging intermittent period or a standing stage, applying a broadband sweep frequency signal to a single battery cell and collecting impedance responses of the battery cell at different frequencies to obtain an alternating current impedance spectrum of the battery cell; extracting an aging quantization parameter representing the current aging state of the battery cell from a preset frequency interval of the AC impedance spectrum; on the basis of the extracted aging quantization parameter and a pre-stored aging correction model, carrying out online correction on pre-stored cell harmonic-impedance distribution, and generating a real-time harmonic-impedance mapping relation matched with the current aging state of the cell; according to the real-time harmonic wave-impedance mapping relation, harmonic waves of charging energy signals applied to the battery pack are adjusted, and charge balance between the battery cells is achieved. According to the method, the cell aging parameter is extracted on line to dynamically correct the harmonic-impedance mapping relation, so that the full life cycle charge balance of the battery pack is realized, and the problem of mismatching of pre-stored distribution and the aging state is solved.

The invention relates to a household solar high-temperature heat utilization device, which adopts a micro heat conduction oil furnace technology to recover heat of high-temperature flue gas generated by combustion of solar energy and household stove fuel, and drags oil heaters such as an oil heating kettle, an oil water heater, an oil heating rice cooker, an oil heating warmer and the like in combination with heat absorption, heat storage and heat supply technologies of heat conduction oil. The phase-change energy-saving electric kettle can replace the original electric kettle, electric water heater, electric rice cooker, electric oil heater and the like, can also be used for refrigeration of an absorption refrigerator and refrigeration of a refrigerator, adopts a phase-change regenerator to complete circulation, avoids frequent start and stop of the absorption refrigerator, saves energy, saves electricity and peak regulation, and is remarkable in expected economic, social and environment-friendly benefits.

The invention discloses an electricity-saving fluidized bed furnace air inlet control device and method, and the device comprises a furnace body, and the bottom of the inner side of the furnace body is provided with an air cap used for air inlet; the air bellow is fixed at the lower end of the furnace body to be communicated with the interior of the air cap; the fan is arranged on one side of the furnace body, and an air outlet of the fan is connected with a communicating pipe connected with the air bellow; the air guide pipe is arranged on the lower surface of the communicating pipe; the air storage tank is connected to one end of the air guide pipe; through the arrangement of the air storage tank, the sensor, the air guide pipe, the first air outlet pipe and the first control valve, the device can operate the fan at constant power, energy consumption caused by frequent power adjustment of the fan is reduced, then air is stored in the inner side of the air storage tank so that air entering the inner side of the furnace body can be automatically adjusted during fuel adjustment, energy consumption can be reduced, and the service life of the furnace body is prolonged. And by arranging the air inlet assembly, waste heat at the slag discharging position can be recycled conveniently, and heat waste during slag discharging is avoided.

The invention discloses an energy-saving and electricity-saving type eye-protection lamp, and particularly relates to the technical field of eye-protection lamps, the energy-saving and electricity-saving type eye-protection lamp comprises a lampshade, a hot box, a heat-conducting fin, a connecting pipe and an inclined pipe, the hot box is fixed to the upper inclined surface of the lampshade, the heat-conducting fin used for conducting heat is fixed to the inner wall of the hot box, and a distribution electricity-saving piece is arranged at the top end of the hot box; according to the distribution electricity-saving piece, a connecting pipe communicates with the top end of the hot box, and the top end of the connecting pipe communicates with an inclined pipe. According to the energy-saving eye-protection lamp, the distributed power-saving piece is adopted, through the structures of the connecting pipe, the inclined pipe and the like, hot air is sprayed to the head of a user from the inclined hole of the hot cavity, meanwhile, the hot air is sprayed to the hands through the hose, the outer ring pipe and the spray hole of the arc spray head, the energy-saving performance is improved, and the practicability of the eye-protection lamp in the cold environment is enhanced; therefore, the problems that the heat is difficult to convert into heat air in winter, and the electricity-saving and energy-saving performance is poor are solved.

The application relates to a power-saving type induction heating device which comprises an induction ring, a first cooling pipe is inserted into the induction ring, both ends of the first cooling pipe extend to the outside of the induction ring, a first cooling joint is connected to each end of the first cooling pipe, a plurality of second cooling joints are arranged on the induction ring in a circumferential direction, a plurality of heat dissipation holes are arranged on the inner side wall of the induction ring in a circumferential direction, and the vertical section shape at the center of the induction ring is a right-angle trapezoid. The power-saving type induction heating device increases the section area by arranging the section of the induction ring into a right-angle trapezoid, thereby improving the strength and preventing the induction ring from being deflected under a high-temperature environment. The pipe is prevented from being cooled in advance when the pipe bending temperature is not reached, the pipe heating time is shortened, the pipe heating efficiency is improved, and the electric energy is saved.

The invention belongs to the technical field of temperature control of data centers, energy storage, charging piles and the like, and particularly relates to an air plate heat exchanger, a control method of the air plate heat exchanger and application of the air plate heat exchanger to a cooling tower or a condensing tower or a dry cooler. The efficient capacity of the plate heat exchanger can be exerted, the plate heat exchanger has the air side heat exchange capacity, the air plate heat exchanger serves as a heat exchanger of a cooling tower, a condensing tower and a dry cooler, evaporation and condensation can be achieved, the heat exchange capacity can be improved, meanwhile, outdoor natural cold sources in day and night, transition seasons and winter can be effectively utilized, and energy and electricity are saved.

The invention provides an outdoor unit with a plate type heat exchanger and a control method thereof.The outdoor unit comprises a frame, the plate type heat exchanger is fixedly arranged in the frame, a fan is fixed to the top of the frame, spraying assemblies are arranged on the two sides of the frame, and spraying assemblies are arranged at the bottom and the top of the frame; an electric control assembly is further arranged in the frame and electrically connected with the plate type heat exchanger, the mist spraying assembly and the spraying assembly. The outdoor unit provided with the plate type heat exchanger can work in a water-free air cooling mode in a water-deficient area and in an evaporation and condensation mode in a water-resource-sufficient area, and the outdoor unit provided with the plate type heat exchanger can be applied to various data center cooling systems, so that natural cold sources are fully utilized, and the energy-saving, electricity-saving, financial-saving and water-saving functions of a data center are achieved.

The invention discloses an automatic switching building power saving system based on a photovoltaic technology. Comprising a crystalline silicon photovoltaic module group, a cadmium telluride photovoltaic module group, an energy storage module, an inverter, an intelligent change-over switch, an uninterruptible power supply (UPS), a power utilization terminal, a municipal power grid power supply, a direct-current power transmission line, an alternating-current power transmission line, a direct-current line current monitoring device, an alternating-current line voltage monitoring device and an energy storage module electric quantity monitoring device. According to the system, automatic switching between building self-contained power generation and the municipal power grid is achieved through the intelligent change-over switch, power generation electric energy of a building self-contained photovoltaic module is fully utilized to reduce power consumption of the municipal power grid and building energy consumption, continuous power utilization of the power utilization terminal is ensured through the UPS, and continuity of office work and life in the building is ensured.

A robot controller system can switch or switches, respectively, into an activated-controller / power saving mode / deactivated-controller / first energy failure / second energy failure mode in case a power-up / power saving / power-down / energy failure / backup condition is determined, wherein in activated-controller mode electric energy supply of a plurality of subsystems (16, 17; 110, 111, 112) by a first electric energy supply (120) is activated, power saving mode electric energy supply of at least one of the subsystems is deactivated and electric energy supply of at least one other of the subsystems by the first electric energy supply (120) is activated, deactivated-controller mode electric energy supply of the plurality of subsystems is deactivated, first energy failure mode electric energy supply of at least one of the subsystems by the first electric energy supply (120) is replaced by electric energy supply by a second electric energy supply (121), and second energy failure mode backup data is saved using a third electric energy supply (122). A method for operating a robot controller system is also provided.

A method for small data transmission (SDT) in a power saving state and related devices are provided. The method, performed by a user equipment (UE), includes receiving a SDT configuration in a radio resource control (RRC) signaling; monitoring a downlink (DL) signaling including a mobile terminated (MT) indication in a physical downlink control channel (PDCCH) or paging occasion in the power saving state; and upon reception of the MT indication, receiving DL small data on an associated radio resource based on the SDT configuration without radio resource control (RRC) state transition. With this method, support with MT traffic transmission in the power saving state is realized.

The utility model relates to a battery pack. The battery pack comprises a shell, a plurality of battery cells mounted in the shell, a circuit board electrically connected with the battery cells and an output terminal connected to the circuit board, the battery core, the circuit board and the output terminal form a current path, and electric energy is input / output through the output terminal. The battery pack also includes a first conductive member, a second conductive member, and a fuse element in the current path. The safety element is electrically connected between the first conductive piece and the second conductive piece, and a gap exists between the safety element and the circuit board. According to the battery pack provided by the invention, adverse effects caused by heat accumulation in the battery pack can be reduced, so that normal use of the battery pack is ensured.

The invention relates to the technical field of prefabricated cabins, in particular to an energy-saving and environment-friendly photovoltaic power generation type electric power prefabricated cabin. Comprising a cabin body, a partition plate is arranged in the cabin body and divides the interior of the cabin body into an air chamber and a mounting chamber, a plurality of grid air channels are vertically arranged on the two side walls of the mounting chamber at intervals, flow guide plates are arranged on the inner sides of the grid air channels, one ends of the grid air channels on the two sides obliquely extend towards the outside of the cabin body, and the inclined ends of the vertically adjacent grid air channels are different. A truss plate is arranged on the inner wall of the air chamber, an arc plate is detachably mounted on the truss plate, an air inlet is formed in the side wall, below the arc plate, of the air chamber, an air outlet is formed in the top wall of the air chamber, and an air cap is arranged at the air outlet. By means of the composite design of the air chamber and the grille air channel, the technical problem that ventilation and water resistance of a traditional prefabricated cabin cannot be achieved at the same time is solved to a great extent while the ventilation and heat dissipation efficiency is guaranteed, an electric rainproof shutter does not need to be installed, and extra electricity can be saved every year; the equipment short-circuit fault probability caused by rainwater infiltration is reduced, and the maintenance cost is reduced.