15results about How to "Avoid frequent start and stop" patented technology

The application relates to the technical field of household appliances, and discloses a cleaning brush and a control method thereof. The cleaning brush comprises a main machine, a handle and a machine head. The machine head is connected with the main machine and comprises a water tank and brush hairs. Cleaning medium is arranged in the water tank, and the brush hairs are arranged at the bottom of the water tank. An atomizing water spraying device is arranged at the bottom of the water tank and communicates with the inside of the water tank. The other end of the atomizing water spraying device is provided with a nozzle. The atomizing water spraying device is used for atomizing the cleaning medium and spraying the atomized cleaning medium to a surface to be cleaned and the brush hairs. Compared with the related art, the water tank and the atomizing water spraying device are integrated in the brush head, so that an additional handheld water pipe, a shower for humidification or frequent wetting of the brush hairs is not needed, the cleaning operation process is simplified, and the use convenience is remarkably improved.

The utility model discloses a terminal box and a display control system, and the terminal box comprises an input module which comprises at least two kinds of video signal interfaces, and the output end of the input module is connected with the first input end of a data switching module; the data output end of the control module is connected with the second input end of the data switching module; the control end of the data switching module is connected with the control end of the control module; the switching state feedback end of the data switching module is connected with the input end of the control module; the output end of the data switching module is connected with the input end of the output module, the output module comprises at least two video signal interfaces, and the data switching module is used for switching connection of signal transmission channels of the first input end or the second input end and the output end according to the control signals output by the control module. And the data switching module switches the data signals of different channels according to the control signal output by the control module, so that the selection of the data signals output by the terminal box is realized.

The utility model discloses a kind of device of high-efficiency cleaning of extraction tank accumulated residue, belong to extraction tank technical field.A kind of device of high-efficiency cleaning of extraction tank accumulated residue, including extraction tank, baffle one and baffle two are fixed in extraction tank inside, the inside of extraction tank is divided into mixing chamber, clarification chamber and backflow slag discharge chamber;Clarification chamber is equipped with slag removal device inside, and slag removal device slides along clarification chamber long side direction, for the sediment residue in clarification chamber is transferred to backflow slag discharge chamber;Liquid in mixing chamber is overflowed to clarification chamber by baffle one;The sediment residue in clarification chamber is moved to backflow slag discharge chamber bottom by the slag removal channel of baffle two bottom, and is discharged by the slag discharge port of backflow slag discharge chamber bottom.

This invention discloses a combined solar power generation and gravity energy storage power supply system and method. The power supply system includes a solar power generation system, a gravity energy storage system, and an intelligent control system. The intelligent control system presets a power generation threshold and dynamically controls the gravity energy storage system to store or release energy based on the difference between the real-time solar power generation and the threshold, thus stabilizing the combined output power. The gravity energy storage unit adopts a symmetrical double-sloped support tower and a dual energy storage structure design, achieving bidirectional conversion between electrical energy and gravitational potential energy through a clutch mechanism. The intelligent control unit dynamically adjusts the floating threshold based on predicted wind speed and historical power fluctuation rate, improving the system's adaptability to different wind fields. The coordinated control of power generation and energy storage solves the intermittency problem of wind power generation, reduces the amplitude of output power fluctuations, and the bidirectional energy conversion mechanism can achieve peak shaving and valley filling, releasing energy to supply power during peak electricity demand and storing energy during off-peak times, improving the overall energy efficiency of the power grid and avoiding energy waste.

The utility model discloses closed explosion-proof graphite centrifugal equipment, relates to the technical field of graphite centrifugal equipment, and solves the problems in the prior art that the accumulation thickness of graphite powder on the inner wall of a centrifugal machine is difficult to determine, and potential safety hazards are caused by overlarge accumulation amount of the graphite powder. Comprising a sealed tank and a sealing cover, a shaking bag is coaxially connected in the closed tank, a material falling pipe is arranged at the bottom of the shaking bag, the material falling pipe extends to the outer side area of the bottom of the closed tank, and a material blocking device is arranged in the material falling pipe; the bottom of the closed tank is communicated with a flow guide pipe; and the sealing cover is connected with a distributing device, a feeding pipe, an emptying pipe, a nitrogen pipe, a telescopic rotating frame, a material layer controller and an explosion-proof lamp corresponding to the shaking bag. The device has the beneficial effects that the stacking thickness of materials in the shaking bag can be monitored in real time through the positioning plate and the torque sensor, and the discharging time is accurately controlled.

This invention discloses a dual-axis rotary drum and noodle machine jacket cooling device, belonging to the technical field of cooling devices. It includes a frame with two main shafts symmetrically rotatably connected to its inner side; it also includes a tilting motor mounted on the frame; and a tilting frame fixedly connected between the two main shafts at their closest ends and driven by the tilting motor's power output, enabling reciprocating tilting and unloading actions under the motor's drive. This invention, by setting multiple flow-guiding baffles within the cooling jacket chamber, divides the originally wide single jacket into multiple independent heat exchange sub-chambers. Utilizing series-connected components arranged with spatial staggers on adjacent baffles, the natural flow inertia of the fluid is broken. The cooling medium is forced to flow in a meandering and reversible manner between the sub-chambers, forming a series of deflected flow paths. This allows the refrigerant to flush all parts of the inner liner's outer wall, completely eliminating fluid short-circuiting and stagnant dead zones, thus improving the convective heat transfer effect.

This invention discloses a molten salt energy storage system and its operation method for thermal power plants coupled with compressed carbon dioxide energy storage, belonging to the field of energy storage and peak shaving in thermal power plants. The system includes a molten salt energy storage unit and a compressed carbon dioxide energy storage unit: molten salt is heated by extracted steam after reheating for heat storage; the heat of compression generated by the compressed carbon dioxide is used to heat feedwater and condensate, eliminating the need for an independent heat storage medium; before expansion, carbon dioxide is heated by four stages of extracted steam and high-temperature molten salt, and cold energy recovery is used to liquefy the carbon dioxide in a circulating manner; the operation method includes peak shaving and load reduction operation modes and peak shaving and load increase operation modes. This invention can improve the peak shaving response speed and regulation capability of thermal power plants, increase electricity-to-electricity efficiency by more than 20%, eliminate the need for cooling water and an independent heat storage medium, reduce investment, achieve energy cascade utilization and decoupled operation of compression and expansion, enable boilers to maintain high loads to achieve zero grid connection electricity, avoid frequent start-ups and shutdowns, and extend equipment life.

The utility model relates to laser heat radiation structure technical field discloses a kind of laser water cooling heat radiation structure with microchannel, including cover, shunt plate, interface plate and piezoelectric fan, wherein, the cover, the shunt plate and the interface plate are sequentially arranged longitudinally, and fixedly connected between two two;One side of the interface plate is provided with water inlet channel, and the other side of the interface plate opposite the water inlet channel is provided with water outlet channel;Microchannel is formed in the top surface of the shunt plate recess, and flow area is formed in the bottom surface of the shunt plate recess;When being in intermittent operation mode, instantaneous heat is smaller than continuous operation mode, water cooling system dormancy, piezoelectric fan starts, forced air convection is formed in microchannel using its vibration, and the little heat generated intermittently is quickly dissipated, reduce the mechanical wear and tear and pressure fluctuation caused by frequent start and stop of equipment, prolong the service life of water cooling system component, increase the stability of overall operation, reduce use cost.

The utility model provides a vehicle air conditioning system, include: a vehicle compressor, a bypass valve is connected between high pressure side and low pressure side of vehicle compressor, a condenser, the first end intercommunication high pressure side of vehicle compressor of condenser, an expansion valve, the first end of expansion valve is connected the second end of condenser, an air conditioner evaporimeter, the first end of air conditioner evaporimeter is connected the second end of expansion valve, and the second end of air conditioner evaporimeter is connected the low pressure side of vehicle compressor, a first temperature sensor is set up in the exhaust end of vehicle compressor, and the control end of expansion valve is connected to first temperature sensor, and a second temperature sensor is set up in the evaporimeter core body of air conditioner evaporimeter, and the control end of bypass valve is connected to second temperature sensor, the utility model discloses can effectively prevent the spring and autumn season vehicle air conditioning evaporimeter frost, avoid the frequent start -stop of compressor, improve stability, the oil return lubrication and cooling effect of compressor.

This invention relates to a temperature and humidity control method and system, belonging to the field of temperature and humidity control technology, and solves the problem of the lack of an automatic temperature and humidity control method in the prior art that can avoid frequent start-ups and shutdowns of equipment within a set temperature and humidity range. A temperature and humidity control method includes: at each sampling moment, collecting the temperature and humidity within a controlled device; if the humidity at the current sampling moment is higher than the upper humidity limit of the controlled device, adjusting the humidity within the controlled device based on the humidity difference between the current sampling moment's humidity and the upper humidity limit of the controlled device; if the temperature at the current sampling moment is lower than the lower temperature limit of the controlled device, using the upper temperature limit of the controlled device minus a set temperature deviation value as the target for temperature increase adjustment within the controlled device; if the temperature at the current sampling moment is higher than the upper temperature limit of the controlled device, using the lower temperature limit of the controlled device plus a set temperature deviation value as the target for temperature decrease adjustment within the controlled device.

The invention discloses an anti-reflux control method and device for a secondary pump air-conditioning water system and a storage medium, and the method comprises the steps: collecting the operation data of the secondary pump air-conditioning water system in real time, and scanning the opening values of two-way valves of all online end devices; according to the opening values of the two-way valves of all the online end equipment, a tail end thermal sensitivity evaluation model is constructed, and a tail end thermal sensitivity index of the current system is obtained through calculation; based on the tail end thermal sensitivity index, the maximum secondary side mixed water supply temperature threshold value allowed under the current working condition is calculated in combination with the designed water supply temperature; the state of a profit and loss pipe is monitored in real time, when the flow of the profit and loss pipe shows that reverse flow or forward flow is lower than a safe dead zone, the secondary side mixed water supply temperature after reverse flow occurs is calculated, the predicted temperature is compared with an allowable threshold value, and if the predicted temperature does not exceed the limit, the current cold source operation state is maintained through pipe network thermal inertia, and machine adding is delayed; and if the system exceeds the limit or is predicted to exceed the limit, a cold source processing program is triggered, so that the energy-saving performance of the system is remarkably improved.

The application relates to the technical field of mobile power sources, and discloses a high-power energy storage mobile power station charging management method, which comprises the following steps: collecting the operation state parameters of the mobile power station through a central control unit; establishing an energy input topology according to the vehicle driving speed and the external interface state, using a fixed photovoltaic array to supply power and performing brake energy recovery in the driving state, controlling a foldable photovoltaic array to be connected to a power grid or to access an external power source in the parking state; calculating the difference between the total power generation and the load power demand in real time, and controlling the energy throughput direction of an electrochemical energy storage system to maintain power balance; and starting a solid oxide fuel cell system to perform emergency supply when the energy storage system is discharging and the electric quantity is lower than a starting threshold. The application realizes the collaborative control and energy optimization distribution of a multi-energy system, and improves the power supply reliability and endurance of the mobile power station under complex working conditions.

This utility model discloses a gas-fired hot water device, relating to the field of hot water equipment technology, comprising: a combustion device; a first heat exchanger disposed downstream of the combustion device along the flue gas flow direction; a second heat exchanger disposed downstream of the first heat exchanger along the flue gas flow direction, the heat exchange pipes of the first and second heat exchangers being connected, and water flowing into the gas-fired hot water device at least partially flowing sequentially through the heat exchange pipes of the second and first heat exchangers; a fan for driving the flue gas generated by combustion in the combustion device to flow sequentially through the first and second heat exchangers; an atomizing device having a receiving cavity and an atomizing generator, with a connecting part between the receiving cavity and the inner cavity of the second heat exchanger, allowing condensate generated in the second heat exchanger to flow into the receiving cavity of the atomizing device through the connecting part, etc. This application can solve the problem that the water mist formed by the condensate atomizing device is prone to secondary condensation at the flue pipe, causing water dripping from the flue pipe.

The utility model discloses life water technical field's including far end water heater, near end water heater, short time water place, long time water place, cold water access and sensing component, far end water heater and near end water heater between installation have cold hot water controller, and the cold water of cold water access is connected far end water heater, short time water place, long time water place and cold hot water controller through pipeline, and the hot water of far end water heater is connected cold hot water controller through pipeline, and cold hot water controller and near end water heater are communicated through pipeline, and the hot water export of near end water heater is connected short time water place and long time water place, and cold hot water controller and sensing component are connected through wired telecommunication signal or wireless information transmission, the utility model discloses through sensing component real -time sensing long time water demand, and control valve switching, and user need not operate, and cold hot water controller realizes the response of second level, and directly calls remote hot water, avoids near end water heater hot water not enough to use the situation to appear.

The application discloses a water pump leakage detection method and system based on adaptive constant pressure control, which adjusts the rotating speed of a permanent magnet synchronous motor for driving the water pump based on the actual pressure value of water in the water pump, so that adaptive switching can be realized among five working states, i.e., a shutdown state, a stable constant pressure state, a water shortage recovery state, a valve closing trial state and a valve closing confirmation state; meanwhile, whether the water pump has leakage can be judged by using the actual pressure value and a shutdown event record, so that the water pump leakage detection is completed. In addition, the application adopts a ladder type speed-up and speed-down trial recovery mechanism in the water shortage recovery state, which not only avoids frequent start and stop caused by temporary water shortage, but also protects the permanent magnet synchronous motor from damage caused by dry running.