547 results about "External energy" patented technology

The invention provides a bridge self-adaptive multi-dimensional vibration reduction support device and a working method, relates to the field of bridges, and aims to solve the technical problems that an existing bridge vibration reduction device is difficult to consider multi-dimensional vibration control and adjustment depends on an external power supply. Vibration mechanical energy is converted into magnetic field energy to act on magnetorheological fluid, a self-adaptive vertical damping adjusting mechanism which does not need external energy and has stronger vibration and larger damping is constructed, and rolling friction energy consumption of friction balls in the transverse vibration reduction assembly and displacement constraint of a limiting ring are combined, so that the vibration reduction effect is improved. The multi-dimensional control over the vertical direction, the horizontal direction and the torsion is achieved through the combined deformation energy dissipation of a vibration reduction spring and a limiting cable in the torsion vibration reduction assembly, the problems that a traditional bridge vibration reduction support is single in function, cannot be adjusted in a self-adaptive mode and fails in power failure are effectively solved, and the anti-vibration safety and the operation stability of the structure in the complex power environment are improved.

The invention relates to the field of preparation of lubricating materials, in particular to a preparation method of composite phase change lubricating gel based on temperature-friction force synergistic response. The lubricating gel adopts a sandwich layered structure; the bottom layer is a porous ceramic layer formed by micro-arc oxidation, is filled with a disulfide bond dynamic network polymer and is anchored on a metal substrate; the middle layer comprises a microencapsulated phase change material which is dispersed in a polyurethane network containing dynamic disulfide bonds and is wetted with ionic liquid; the surface layer is an epoxy resin coating rich in boron nitride nanosheets, and a rapid heat conduction channel is constructed. Compared with the prior art, the lubricating state can be automatically adjusted in the friction process without external energy input, and the method has the advantages of being sensitive in multi-field coupling response, capable of achieving automatic antifriction protection, high in extreme working condition adaptability and the like.

The invention relates to the technical field of power transmission line self-energy-taking, and discloses a power transmission line self-energy-taking device and a state detection system, and the device comprises a housing structure, a motion structure, an electromagnetic power generation structure, and a friction power generation structure. Wherein the moving structure is composed of a permanent magnet, a spring and a fixing groove, the vertical shell and the fixing groove are connected through the spring, and a spring mass vibration system is constructed; the electromagnetic power generation structure generates power through relative movement of a permanent magnet and a coil. The friction power generation structure generates power through sliding separation of sliding electrodes on the side faces of the fixing grooves and electrodes in the side shells. The invention further discloses a state detection system, vibration energy is collected through the device and stored in an energy storage battery through an energy management circuit to supply power to a sensor detection circuit, and data are sent to an upper computer through a wireless transmission module. The power transmission line state real-time detection without external energy supply can be realized, and the problem of power supply of monitoring equipment in remote areas is solved.

The invention relates to the technical field of new energy battery systems, in particular to an immersed battery cooling structure with waste heat recovery and a waste heat recovery method.The immersed battery cooling structure comprises a cooling box, and a battery module is immersed in cooling liquid in the cooling box; a waste heat recovery mechanism is arranged above the cooling box, and the waste heat recovery mechanism exchanges heat with the cooling liquid; the cooling box comprises a box body for mounting the battery module, a zigzag cooling flow channel is arranged in the box body, and cooling liquid flows along the cooling flow channel and exchanges heat with the battery module; the cooling box comprises a box cover arranged at the top end of a box body in a sealed mode, a plurality of cooling pipes arranged side by side are arranged on the box body, and the cooling pipes and the waste heat recovery mechanism are arranged in a heat exchange mode. And the cooling liquid transfers heat generated by the battery module to the cooling pipe, and the heat is recovered through the waste heat recovery mechanism. The immersion cooling mode is adopted to improve the cooling effect, meanwhile, waste heat is effectively recycled and utilized, heat waste is reduced, and external energy input needed by operation of the battery module is reduced.

The invention provides a permanent magnet radial-axial collaborative balancing device and method for a shield pump, and belongs to the technical field of shield pumps. The device comprises a pump shell, an impeller, a rotor assembly, a stator assembly, a shaft, a thrust bearing, a rotor permanent magnet component and a static permanent magnet component, the rotor permanent magnet component and the static permanent magnet component correspond to each other, the rotor permanent magnet component is embedded below an impeller front cover plate opening ring, and the static permanent magnet component is embedded into the corresponding inner wall of the pump shell. The magnetization direction and the axis of the pump shaft form a preset inclination angle and are in mirror symmetry, so that a repulsive magnetic circuit with opposite same-name magnetic poles is formed; space magnetic force generated during working can be decomposed into radial and axial components. The radial component provides restoring force pointing to the center when the rotor deviates, and the radial stability is enhanced. The axial component counteracts the axial thrust of the fluid, and the thrust bearing load is reduced. External energy input is not needed, the structure is compact, vibration noise can be effectively restrained, and the service life of the bearing is prolonged.

The invention discloses a sediment collection and supply integrated device for offshore wind turbine pile foundation scour prevention, which is arranged around the periphery of an offshore wind turbine single pile foundation, relates to the technical field of offshore wind power engineering, and comprises an annular sand collection unit, a sand storage unit, a sand unloading unit and a sand supply guide unit which are communicated from top to bottom; the annular sand collecting unit guides sediment in ocean current to be deposited and collected, the sand storage unit receives and stores the collected sediment, and the sand unloading unit can seal a bottom outlet of the sand storage unit in an opening and closing mode; the sand supplementing guide unit directionally guides the discharged silt to the scouring pit; the mechanical triggering unit and the elastic resetting unit are used for opening and resetting the sand unloading unit. Sediment carried by ocean current is utilized, through pure mechanical passive operation, integrated self-circulation of collection, storage, triggering, release and supply of the sediment is achieved, external energy is not needed, the self-adaptive adjusting capacity is achieved, and the construction and operation and maintenance cost is remarkably reduced.

The invention relates to the technical field of intelligent materials and structural dynamics, solves the technical problems that an existing tumbler structure is lack of self-continuous motion ability and depends on external energy, and particularly relates to a light-driven liquid crystal elastomer tumbler and a nonlinear dynamics control method thereof. Self-continuous swinging under illumination of certain intensity is realized by utilizing light response design of the liquid crystal elastomer and coupling of nonlinear restoring force, and application is performed by utilizing regular movement of the liquid crystal elastomer. The tumbler structure can generate a state alternating process from swinging out of an illumination area to swinging back to the illumination area under the condition of specific light source intensity, and the change amplitude of standing and inclining alternation can be changed by adjusting illumination parameters. According to the tumbler structure, the limitation problem of a traditional tumbler can be solved, the tumbler structure can achieve self-continuous movement under the condition that the tumbler structure does not depend on external periodic stimulation, and the application of the tumbler structure is expanded.

Energy harvesting devices can be deployed in a wellbore to transform external energy in the wellbore to electric power for consumption by electric devices disposed in the wellbore. A method includes deploying an energy harvesting device downhole in a wellbore, transforming, with the energy harvesting device, external energy in the wellbore to electric power and supplying the electric power from the energy harvesting device to an electric device disposed in the wellbore.

The invention provides a photovoltaic energy storage charging and discharging control method, device and equipment and a storage medium, and relates to the field of photovoltaic energy storage. The method is suitable for a power utilization process in which a photovoltaic energy storage system and an external energy source cooperate to supply power to a load, and comprises the steps of obtaining an output state of the photovoltaic energy storage system and an output state of the external energy source in real time, and determining a first working mode of the photovoltaic energy storage system; obtaining the residual electric quantity of a battery unit in the photovoltaic energy storage system, and determining a second working mode of the battery unit according to a preset first electric quantity threshold value, a preset second electric quantity threshold value and the determined first working mode; when the battery unit is in the charging mode and the electric quantity reaches a second electric quantity threshold value, the battery unit is controlled to be discharged to the target electric quantity and then recharged; and when the battery unit is in the discharge mode and the electric quantity is reduced to a third electric quantity threshold, controlling the battery unit to stop discharging and enter a standby state. Through full-process intelligent regulation and control, energy supply and demand are balanced, the risk of over-charging and over-discharging is avoided, and the economical efficiency and reliability of the system are remarkably improved.

The invention discloses an industrial park comprehensive energy interaction system, relates to the technical field of energy optimization, and solves the technical problems of extensive surplus energy disposal, low utilization rate, and lack of quantitative standards and external collaboration in insufficient energy disposal. The service life of the energy storage equipment is protected, extra surplus energy is directionally distributed to an interruptible process and an electricity utilization gap area, the surplus energy consumption rate is increased, short-time surplus is combined with the energy storage SOC to dynamically adjust the charging power, energy abandonment is avoided, the consumption efficiency is further improved, and through three-dimensional quantitative assignment and weighted scoring of safety influence, recovery difficulty and production loss, the energy utilization efficiency is improved. An objective load grading standard is established to ensure that the core load is preferentially guaranteed; an external energy collaboration mechanism is introduced for a long time, a supplement scheme is formulated in combination with energy storage supportable duration, production interruption is avoided, meanwhile, the optimal external energy is selected through cost comparison, and the energy supplement cost is reduced.

The invention belongs to the technical field of ocean engineering drag reduction, and relates to a self-adaptive chemical gas production underwater drag reduction layer and a preparation method thereof.The surface of an aircraft is regarded as a gas production place and transformed into an intelligent interface with sensing and feedback capabilities, inert gas generated by reaction of reactants is detained and utilized in situ through microstructure design, and the self-adaptive chemical gas production underwater drag reduction layer is obtained. The independent micro chamber structure avoids diffusion of local failure, the macroscopic flow guide structure relieves the problem of non-uniform gas film distribution, external energy input is not needed, the chemical reaction rate is reversely and adaptively regulated and controlled based on the physical effect generated by gas retention, and therefore a closed-loop passive self-adaptive resistance reduction film layer is formed. Reaction byproducts are environment-friendly water-soluble sodium chloride and water and are removed in a pulse type reaction mode of high-speed water flow scouring and gas retention, so that the risk of permanent blockage is reduced, safety and environment friendliness are achieved, the energy utilization efficiency is high, meaningless waste of gas is avoided, and the cruising ability of fuel is equivalently and greatly improved.

The invention discloses an efficient mineral selective flotation reagent and application thereof, and aims to improve the selectivity and recovery rate of mineral flotation. The composition comprises a first precursor (P1), a second precursor (P2), and a resonance activation adjuvant (Aux). The first precursor P1 has an anchoring group capable of acting on the surface of a target mineral and a first reactive functional group; the second precursor P2 includes a hydrophobic group and a second reactive functional group capable of a ligation reaction with the first reactive functional group of P1. The application method comprises the following steps: adding P1 and Aux into ore pulp to react with minerals; and applying an external energy field (such as ultrasonic wave or illumination with specific wavelength) to activate P1 and Aux adsorbed on the surface of the mineral. Through an in-situ interface reaction strategy assisted by an external energy field, directional adsorption and effective coverage of the agent on the surface of the mineral are remarkably improved, flotation dynamics is improved, flotation requirements of different mineral types can be met, and a new technical approach is provided for efficient utilization of complex and refractory ores.

The invention belongs to the technical field of energy recovery and utilization, and relates to an energy recovery and utilization system for a semi-active flapping wing power generation device and a control method.The system comprises a motion module and two hydraulic energy storage and conversion assemblies symmetrically arranged on the two sides of the motion module; a piezoelectric assembly is arranged on the side, close to the movement module, of each hydraulic energy storage and conversion assembly, when the driving device touches the piezoelectric assemblies, the hydraulic energy storage and conversion assemblies recover and store kinetic energy in the sinking and floating movement of the flapping wings in a hydraulic mode, and when the flapping wings move to the limiting position, the hydraulic energy storage and conversion assemblies release the stored energy. And the flapping wings are driven to realize sinking and floating pitching coupling motion. Compared with the prior art, the hydraulic energy storage and conversion assembly is introduced in the sinking and floating process of the flapping wings, the sinking and floating and pitching coordination of the flapping wings is optimized, the energy collection efficiency is effectively improved, external energy input is reduced, and the system efficiency, economical efficiency and operation stability are improved.

The invention discloses an immersed energy storage liquid level tide control system based on gravity self-adjustment, which relates to the technical field of energy storage and comprises a liquid storage module, a reserve liquid releasing module during thermal runaway, an immersion execution module, a multi-stage reserve liquid guiding module, a local hot spot eliminating module, a liquid path communication module, a rapid liquid supplementing module, a dynamic control module and a switching control module. The control module controls the liquid storage module. Through a gravity self-adjusting mechanism, thermal runaway is quickly responded, liquid level rising, phase change heat absorption, electrode dilution and condensation recovery are achieved, thermal runaway spreading is effectively restrained, after-combustion is blocked, the system operates autonomously, external energy or mechanical parts are not needed, reliability is high, meanwhile, liquid cyclic utilization and dynamic liquid level adjustment are adopted, resource use is optimized, and the energy consumption is reduced. And the multi-stage diversion structure and the flexible liquid level-temperature mapping model enhance the adaptability of the system to complex working conditions, and improve the overall safety and operation efficiency of the battery system.

The invention discloses a fresh water recovery system based on seawater desulfurization. The fresh water recovery system comprises a flue gas header pipe, an evaporation tower, a condensing tower, a desulfurization tower and a seawater delivery system, the seawater conveying system is used for providing seawater for the desulfurization tower so as to absorb sulfur dioxide in flue gas flowing from the flue gas main pipe; seawater absorbing sulfur dioxide as a cooling medium flows through the condensing tower and then enters the evaporation tower to serve as a water source; part of the flue gas of the flue gas header pipe enters the evaporation tower to serve as a heat source to realize evaporation of a water source, and the flue gas with water vapor flows into the condensation tower to realize condensation. The desulfurization process and the fresh water recovery process are organically combined, flue gas waste heat is used for driving seawater evaporation, meanwhile, desulfurized low-temperature seawater is used as a condensation cooling medium, the energy utilization efficiency is remarkably improved, dependence on external energy is reduced, the consumption of seawater is reduced through circulating gradient utilization of seawater, and the energy consumption is reduced. And valuable fresh water is produced while flue gas desulfurization is realized.

The utility model discloses a large-volume concrete cooling device with additional thermoelectric materials. The large-volume concrete cooling device comprises a water pipe, a flexible joint, a thermoelectric assembly and a radiator, the multiple sections of water pipes are flexibly connected end to end through flexible joints, and water outlets and water inlets of the water pipes are communicated with an external water source to form a closed-loop water circulation path; a plurality of thermoelectric components are bonded on the outer surface of the water pipe at intervals and are connected with the radiator; the electric heating assembly is communicated with an external energy storage device. The cold end of the thermoelectric module is bonded with the aluminum pipe, and the hot end of the thermoelectric module is bonded with the copper radiator, so that real-time monitoring of the internal temperature of concrete and hydration heat power generation are synchronously realized; the thermoelectric module converts waste heat of a traditional water cooling system into electric energy through the thermoelectric power generation technology, and the problem of heat waste is solved. Meanwhile, a high-temperature area can be accurately positioned through electric signal feedback, and the crack risk is remarkably reduced.

The invention belongs to the technical field of nuclear power, and particularly relates to a pressure self-driving type separation pressure relief device. The device is driven to be opened through unbalanced force caused by medium pressure to the valve rod assembly. The separation structure is arranged, and the bearing bush and the separator can complete the separation action when the required separation pulling force is applied; the protector is of an integrated structure, one end of the protector is designed to be a blind hole, the head of the protector is designed to be a weak area, zero leakage is kept in a closed state under the normal working condition, when medium pressure reaches starting pressure, the disengaging structure is disengaged, the valve rod breaks the protector in a pulling mode, and the opening action is completed. The whole action process does not depend on external energy, signals, manpower and other operations, has the characteristic of high reliability, and can be applied to numerous key parts needing to execute the pressure relief function.

The utility model discloses an energy-saving concentrated water treatment system which comprises a waste heat recovery system and a concentrated water treatment system, high-temperature flue gas of a boiler is extracted through an induced draft fan, and the waste heat recovery system achieves heat transfer through an internal circulation medium and comprises a first heat exchanger arranged on an air duct of an outlet of the induced draft fan, a compressor and a second heat exchanger, the outer circulating medium of the shell pass of the second heat exchanger exchanges heat with the inner circulating medium of the tube pass, and then is conveyed to a concentrated water treatment system through a pipeline. According to the structure, high-temperature flue gas waste heat of the boiler is efficiently recovered, and a mechanical steam recompression technology or a multi-effect evaporation technology is combined, so that the concentrated water treatment system efficiently treats concentrated water, the external energy consumption is reduced, and the operation cost is reduced.

This invention relates to the field of pulse circuit technology and discloses a high-efficiency AC power line zero-crossing detection chip, including a path selection module, a signal processing module, and a driving module. The path selection module switches the charging circuit according to the potential of the internal power supply capacitor. The signal processing module uses a feedback loop to adjust the switching level of the sampling branch and generate a zero-crossing trigger pulse signal. The driving module responds to the zero-crossing trigger pulse signal by segmentally turning on the internal power supply capacitor and the external energy supply capacitor in the initial and subsequent stages of the zero-crossing point. This invention solves the contradiction between the ultra-high input impedance sampling environment and the driving strength through a controlled hysteresis window and a segmented current injection mechanism, suppresses signal jitter, improves the timing accuracy of zero-crossing detection, and effectively reduces the static power consumption of the system.

The invention discloses a protection device for electrical installation, and relates to the technical field of electrical equipment installation auxiliary devices, the protection device comprises a protection shell, heat continuously generated by a cable joint is absorbed through a heat conduction seat, graded heat dissipation action is triggered through the thermal driving characteristic of a shape memory alloy spring, when the temperature rises, a rotating plate turns over to form a directional air guide channel, and the heat dissipation effect is improved. Under the high-temperature extreme working condition, the self-adaptive structure further focuses the airflow, the metal foam and the phase-change material cooperatively cool the airflow, deep heat dissipation is achieved, heat is prevented from being accumulated in the protective shell and around the connector, the whole heat dissipation process does not need external energy, driving is completely depended on heat generated by the cable, and the service life of the cable is prolonged. And meanwhile, the rainproof and dustproof effects are guaranteed through the graded sealing design, the thermal aging speed of insulating glue, a heat-shrinkable sleeve and other insulating materials at the joint is effectively delayed, the insulating protection effect is enhanced, and the safety risk caused by high temperature is reduced.

The invention discloses a wide-range flow velocity adaptive adjustment monitoring device, and belongs to the field of marine environment monitoring. The device comprises a driving rotating cup, an axial distance self-adaptive adjusting mechanism, a magnetic coupling transmission unit and a pressure-resistant packaging shell structure, the driving rotating cup rotates under the action of water flow and is coaxially provided with a balance weight structure capable of moving along a sliding groove, in the rotating process of the driving rotating cup, balance weight generates axial component force under the action of centrifugal force, and the pressure-resistant packaging shell structure is arranged on the magnetic coupling transmission unit. And the driving magnet is driven to move in the axial direction, so that the transmission gap between the driving magnet and the driven magnet is changed. In a low-flow-velocity state, the axial distance between the driving magnet and the driven magnet is large and corresponds to a high-sensitivity measurement mode; along with the increase of the flow velocity and the rotation speed, the axial spacing is automatically reduced, the magnetic coupling strength is enhanced, the measuring range is expanded, and the self-adaptive adjustment of the flow velocity measuring range is realized. The process does not need external energy input or control signals, and automatic adjustment is achieved completely depending on flow velocity changes.

This application provides an emergency drive device adapted to electric window openers, specifically relating to the field of electric window drive structure technology. It includes a modular main body, within which a composite drive mechanism is installed. The composite drive mechanism includes a spring-loaded drive component, a power transmission component, a power output component, a locking component, and a first unlocking component. The spring-loaded drive component includes a fixed part fixed within the modular main body and a movable part that can extend and retract axially. The movable part is normally in a pre-compressed energy storage state. This emergency drive device adapted to electric window openers uses a gas spring or other elastic energy storage structure as its power source. The structure, with a fixed part and an energy-storing movable part, requires no external energy source such as electricity or hydraulic pressure, effectively avoiding the problem of emergency failure due to power outages during fires, and improving and ensuring the safety of electric windows in fire situations.

The invention discloses a fresh-keeping method and a fresh-keeping device for a refrigeration shelf after picking of blueberries, belongs to the technical field of postharvest treatment of fruits and vegetables, takes natural metabolism regulation and control and cell stable quality regulation as core innovation points, breaks through the limitation that traditional controlled atmosphere fresh-keeping needs to depend on external energy and single nutrient enrichment, and improves the fresh-keeping effect of the blueberries. And organic unification of environmental control and physiological regulation is realized. The method is simple and convenient to operate, remarkable in effect, low in cost and high in safety, is not only suitable for preservation of picked blueberries, but also can be popularized to storage and transportation links of other perishable berries such as strawberries, blackberries and raspberries, provides an efficient, green and sustainable technical path for preservation of picked fruits and vegetables, and has important industrial popularization value and social application significance.

The invention provides a variable circulation hybrid electric propulsion system applied to an unmanned aerial vehicle and a propulsion method of the variable circulation hybrid electric propulsion system, and belongs to the technical field of aircraft propulsion. The problems of insufficient power and endurance of the unmanned aerial vehicle are solved. The four liquid rocket engines are arranged around the unmanned aerial vehicle body through the vehicle arms; each rotor wing is correspondingly arranged above the liquid rocket engine; a motor and a pump are arranged in the liquid-propellant rocket engine, and the combustion chamber is located below a shell of the liquid-propellant rocket engine and connected with the spray pipe. A fuel cell in the unmanned aerial vehicle body is located at the upper end of the unmanned aerial vehicle body. An energy storage cell is embedded into the lower middle portion of the fuel cell. The energy management system is embedded into the middle-upper part of the fuel cell; and the oxygen tank is positioned at the lower end of the fuselage. The fuel cell is adopted to charge the energy storage cell, the energy storage cell drives the pump to stably convey fuel to the combustion chamber, the problem that a traditional liquid rocket engine depends on complex external energy when started for multiple times is effectively solved, and rapid and reliable repeated starting of the engine is achieved.

The invention discloses a temperature self-compensation type staggered stacked direct ammonia solid oxide fuel cell stack and a method, and belongs to the technical field of solid oxide fuel cells. The first single-layer battery unit and the second single-layer battery unit with the reverse flow channel layout are alternately stacked and are not overlapped in the vertical projection direction, so that the high-temperature area of the upper-layer unit and the low-temperature area of the lower-layer unit form thermal coupling in the vertical direction, and cold and heat offset is realized by utilizing inherent heat conduction in the galvanic pile; the technical problem that the axial temperature difference is remarkable due to inlet heat absorption / outlet heat release reaction coupling of an existing direct ammonia fuel SOFC is solved, and the temperature gradient in a galvanic pile is remarkably inhibited on the premise that external energy consumption is not needed.

This invention discloses a bistable flexible gripper with a fin effect, belonging to the field of flexible robot grasping technology. The gripper comprises a bistable core mechanism, fin-effect flexible fingers, and a rigid support, forming a rigid-flexible hybrid structure. The first and second links of the bistable core mechanism are hinged by a pin. A drive rod with a through hole passes through the pin to achieve hinged engagement. The drive rod has a driving end and a passive end facing away from each other. The bistable core mechanism contains a variable number of elastic rings. Applying an axial active external force to the driving end or passive pressure from the object contacting the passive end can trigger a sudden bistable switching of the bistable core mechanism, driving the fin-effect flexible fingers to complete opening and closing movements. When grasping an object, the internal force of the bistable structure maintains the adaptive deformation of the fin-effect flexible fingers after contact with the object. The entire grasping deformation process is a purely mechanical action, requiring no continuous external energy input or manual intervention.

The invention belongs to the technical field of waste acid treatment, and particularly relates to an efficient concentration process for waste acid in phenylenediamine production. According to the high-efficiency concentration process for the waste acid generated in phenylenediamine production, multi-stage concentration and resource recycling are combined, impurities are removed through pretreatment of the composite adsorbent, and the adsorbent is recycled and regenerated through magnetic separation; according to the invention, waste acid is extracted from 70-75% to 95.5-96% through first-stage vacuum concentration, second-stage vacuum concentration and pot-type three-stage concentration, and the waste acid can be reused in a second-stage nitrification process, so that cyclic utilization is realized, and the consumption of raw materials is reduced. According to the process, pot-type concentrated high-temperature tail gas is used as a first-stage vacuum concentration heat source to recover waste heat, and external energy consumption is reduced; diluted acid water is separated through a pervaporation membrane, recycled water is used for washing, concentrated dilute acid is recycled for pretreatment, closed cycle emission reduction is formed, and the requirements for green, low carbon and circular economy are met. Meanwhile, by means of composite adsorbent magnetic separation, corrosion-resistant material application and an efficient composite membrane technology, the system stability and efficiency are improved, the service life of equipment is prolonged, and the maintenance cost is reduced.

The invention relates to the technical field of coal mine comprehensive energy supply systems, and discloses a water heating device based on multi-energy synergy, which comprises a water inlet pipe I and a water inlet pipe II, a mechanical linkage structure used for adjusting the proportion of two paths of water flow in a linkage manner is arranged between the water inlet pipe I and the water inlet pipe II, and a regulation and control mechanism is arranged in the mechanical linkage structure. The regulation and control mechanism is used for controlling the fire opening degree of the boiler burner; a water temperature signal is converted into mechanical displacement through paraffin temperature sensing, differential calculation is conducted through the X-shaped cross rod to obtain a mixing strategy, the water inlet proportion of two paths is adjusted through the hydraulic driving air bag to stabilize the water inlet temperature, and the adjusting strategy is transmitted to a boiler gas valve in advance through the linkage plate and the rigid push rod; synchronous matching of firepower and water flow states is achieved, external energy and complex electric control are not needed in the whole process, self-adaption and feed-forward type balance of energy supply and demand in a multi-energy collaborative heating system is achieved, and finally the comprehensive benefits of saving energy, stabilizing and prolonging the service life of equipment are achieved.

The utility model belongs to the technical field of wastewater treatment, and particularly relates to a wastewater sampling device which comprises a box body, a wastewater input pipe, a detection output pipe, a wastewater output pipe and a flow guide pipe connected with the wastewater input pipe, and further comprises a gravity driving assembly used for driving the flow guide pipe to switch positions under the action of gravity, the switching assembly is connected with the gravity driving assembly and is used for controlling the flow guide pipe to move, so that the flow guide pipe is respectively aligned with the detection output pipe and the wastewater output pipe; the magnetic sealing assembly is arranged at the end part of the flow guide pipe and inlets of the detection output pipe and the wastewater output pipe, and realizes sealed connection through magnetic attraction force; the liquid discharging assembly is arranged at the bottom of the box body and used for discharging waste water in the box body, the position switching of the flow guide pipe without external energy can be realized, and the energy consumption is reduced; the magnetic sealing assembly ensures the sealing performance when the flow guide pipe is connected with the output pipe through the magnetic attraction force of a permanent magnet ring and a ferromagnetic sealing groove.

The present invention relates to a battery (1), in particular an IoT battery, comprising at least one battery cell (2) for receiving, storing, and discharging energy, an energy interface (3) for connecting the battery (1) to an end device and / or an external energy source, and a controller (4) for controlling the at least one battery cell (2) and / or the energy interface (3). The invention also relates to a method for operating a battery (1). It is proposed that the battery (1) includes an IoT control unit (5), wherein the IoT control unit (5) is configured to generate control commands for the controller (4) and / or status information of the battery (1).