160 results about "Dual cycle" patented technology

The invention discloses an intelligent charging pile, and the pile comprises a central host system which comprises a multi-mode power module group, a triple-redundancy control unit, and a liquid cooling unit. The multi-mode power module group is used for realizing AC / DC (Alternating Current / Direct Current) conversion; the triple-redundancy control unit comprises a main PLC (Programmable Logic Controller), a standby PLC and an FPGA (Field Programmable Gate Array) coprocessor; the liquid cooling unit adopts a double-circulating-pump redundancy design and is used for ensuring the heat dissipation efficiency of the central host system; the intelligent auxiliary pile group comprises a plurality of auxiliary piles, and one auxiliary pile is provided with 1-3 charging terminals; each auxiliary pile comprises a local DC / DC module, an auxiliary controller, a hybrid cooling unit and a power divider; an intelligent charging gun; and a four-stage mixed heat dissipation scheme is adopted. The technical problem that the charging terminals of the whole station are paralyzed easily due to faults of a host and a control system is solved, the heat dissipation efficiency is improved, and the charging power of the charging gun is intelligently allocated and managed.

The invention discloses a dual-circulation phase-change heat storage material for drilling fluid of a deep high-temperature oil and gas field and a preparation method of the dual-circulation phase-change heat storage material, and belongs to the technical field of petroleum drilling fluid. The preparation method comprises the following steps: (1) mixing and ball-milling expanded graphite and ferroferric oxide nanoparticles, and performing ultrasonic treatment in a solvent to obtain a suspension; and (2) mixing a mixed solution composed of trihydroxymethyl aminomethane and pentaerythritol with the suspension obtained in the step (1), then carrying out ultrasonic treatment and stirring, and finally drying to obtain the product. The preparation method is simple and high in preparation efficiency, and the prepared phase change heat storage material has an adjustable double-peak heat absorption characteristic and high heat conductivity, also has excellent recoverability and real-time monitoring performance, can be applied to cooling of drilling fluid in deep wells and ultra-deep wells, has double-circulation characteristics of heat energy circulation and phase change material circulation, and has wide application prospects. The drilling fluid can stably exist in an underground high-temperature environment, normal development of drilling work is ensured, and the drilling fluid has a wide application prospect.

The utility model discloses a double-circulation cascade refrigeration system, and belongs to the technical field of waste heat energy utilization, the double-circulation cascade refrigeration system comprises a waste heat refrigeration module, a low-temperature refrigeration module and a low-temperature refrigeration module, the waste heat refrigeration module comprises a generator, a condenser and an ammonia cooler, a gas outlet of the generator is connected with the condenser, the condenser is connected with the ammonia cooler, and the low-temperature refrigeration module is connected with the low-temperature refrigeration module. The low-temperature refrigeration module comprises a compressor and a heat exchanger, the heat exchanger is located between the waste heat refrigeration module and the low-temperature refrigeration module, a cold medium inlet of the heat exchanger is connected with an outlet of the ammonia cooler, a cold medium outlet of the heat exchanger is connected with an inlet of the ammonia cooler, and a heat medium of the heat exchanger is connected with the compressor. Stable work is still achieved when the waste heat load change interval is large, the heat exchange cost is reduced, poisonous, flammable and explosive media are prevented from entering final users, and the green hydrogen and green ammonia concepts and the production principle are met.

The invention relates to a wheel drive rail type gravity flow energy storage system and an energy storage method. The wheel drive rail type gravity flow energy storage system comprises a double-circulation bearing mechanism, a double-circulation traction mechanism and a double-wheel drive mechanism. The double-circulation bearing mechanism comprises two bearing rails, the double-circulation traction mechanism comprises two traction ropes, the double-wheel driving mechanism comprises two driving wheels which are arranged in parallel and vertically mounted, and the traction ropes are wound on the driving wheels and continuously run under the driving of the driving wheels; a plurality of carrying mechanisms are arranged between the bearing rails, the pulling rope pulls and drives the carrying mechanisms to operate continuously, and the carrying mechanisms are used for carrying energy storage blocks serving as energy storage carriers; the driving wheel is connected with an electric power generation mechanism; the electric power generation mechanism is used for driving the driving wheel to rotate actively, and continuous gravity flow is formed through the continuously-lifted energy storage block. And the energy storage block which continuously descends drives the driving wheel to rotate, so that the gravitational potential energy is converted into electric energy of the electric power generation mechanism, and continuous energy flow is formed.

This invention relates to a method and system for improving the performance of a vapor compression refrigeration cycle. It utilizes two cycles: Cycle A gains heat from a heat source, releases heat to a heat sink, and stores heat using a heat carrier; Cycle B does not gain heat from a heat source but gains heat through the cooling of the heat carrier and releases heat to the heat sink. By introducing a dual-cycle architecture and utilizing a heat carrier, this invention not only solves the problems of efficiency reduction and heating interruption caused by frosting but also achieves efficient cascaded energy utilization and continuous, stable system operation. This technology can be widely applied in air conditioning, heat pumps, refrigeration, and other fields, and is particularly suitable for high-energy-consuming scenarios such as high-temperature heat pumps and cryogenic systems with large temperature differences between the heat source and heat sink, demonstrating significant energy-saving potential and broad application prospects.

The application provides a double-circulation cooling device and method for a charging gun, which comprises a water pump, a water distribution unit, a liquid storage unit and a heat dissipation unit. The water pump comprises a first water pump and a second water pump. The first water pump, the water distribution unit and the liquid storage unit are sequentially connected to form a first circulation system. The second water pump, the heat dissipation unit and the liquid storage unit are sequentially connected to form a second circulation system. The first circulation system and the second circulation system exchange working medium and heat in the liquid storage unit. The double-circulation cooling system used in the application can make the cooling liquid flow through the working units of the circulation cooling system through multiple circuits, and the liquid storage unit is used as a working medium and heat exchange place between the first circulation and the second circulation. The flow of the cooling liquid in the liquid storage unit is switched to different circuits, the water resistance of the cooling liquid flowing through the circuits is small, the operating pressure of the components in the circuits is small, and the reliability of the charging gun cooling device is greatly improved.

The application provides a double-cycle refrigeration system and method with functions of shutdown pressure maintaining and hot gas defrosting, and the system comprises a compressor, a condenser, a refrigeration evaporator, a freezing evaporator, a first capillary tube, a second capillary tube, a bypass connecting pipe and a one-inlet and three-outlet electromagnetic valve; the one-inlet and three-outlet electromagnetic valve has one inlet and three outlets, and the three outlets are a first outlet, a second outlet and a third outlet respectively; the outlet of the condenser is connected to the inlet of the one-inlet and three-outlet electromagnetic valve; the first outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the refrigeration evaporator through the first capillary tube; the second outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the freezing evaporator through the second capillary tube; the third outlet of the one-inlet and three-outlet electromagnetic valve is connected to the inlet of the freezing evaporator through the bypass connecting pipe; and the outlet of the refrigeration evaporator and the outlet of the freezing evaporator are both connected to the suction port of the compressor, so as to solve the problems of complex defrosting structure and large compressor start-stop loss.

The utility model relates to the related technical field of water-cooling heat dissipation, and discloses a water-cooling heat dissipation brushless motor with an efficient double-circulation function, a plurality of slots are arranged in a shell, a plurality of sixth sliding blocks are arranged in the slots, first cavities are arranged in the sixth sliding blocks, fourth sliding blocks are arranged in the first cavities, and the sixth sliding blocks are arranged in the fourth sliding blocks. A fixing rod is arranged on the side face of each sixth sliding block, a through hole is formed in each fixing rod, a sliding shaft is arranged in each through hole, one end of each sliding shaft extends into the corresponding first cavity and is connected with the corresponding fourth sliding block, a circular ring is arranged at the other end of each sliding shaft, and when the distance between the sixth sliding blocks is reduced, the circular rings slide on the surface of the motor; meanwhile, the third sliding block slides inwards, the sliding shaft slides inwards, the angle of the support can be adjusted according to the pits in the surface of the motor, the contact between the cooling liquid pipe and the motor is better, and the heat dissipation effect is better achieved.

The application discloses a double-circulation full-type four-way intelligent high-precision aging furnace, and relates to the technical field of aging furnaces.The double-circulation full-type four-way intelligent high-precision aging furnace comprises a base and a sliding seat, and the top of the base is fixedly connected with a furnace body; when workpiece heat treatment is needed, the workpiece is moved to the inside of the furnace body and a longitudinal heating gun is started, so that the longitudinal heating gun can heat the air inside the air pipe; at this time, a temperature sensor can detect the temperature at the bottom of the inside cavity of the furnace body, and then the detection result is transmitted to the inside of a control host, so that when the inside temperature of the furnace body is high, the control host can control a No.1 motor to start; at this time, the No.1 motor can drive the baffle to rotate through a worm and a worm wheel, so that the baffle can adjust the airflow flow inside the air pipe, thereby achieving the intelligent adjustment effect of the inside temperature of the furnace body, that is, achieving the automatic adjustment effect of the workpiece heat treatment temperature.

The utility model is applied to the field of tool magazine machines, in particular to a tool magazine machine with a double-circulation cooling oil supply system, which comprises a machine head assembly, an oil pump and an oil storage tank which are sequentially connected through oil guide pipes, and the machine head assembly comprises a second machine shell, a first accommodating groove, a second accommodating groove, a snakelike oil conveying pipe and a tool spindle. The second machine shell is provided with a first containing groove, the snakelike oil conveying pipe is arranged in the first containing groove, a first boss is arranged in the middle of the first containing groove in a protruding mode, the first boss is provided with a second containing groove, and the cutter spindle is arranged in the second containing groove, penetrates through the second machine shell and surrounds the first boss through the snakelike oil conveying pipe. The tool spindle is arranged on the first boss, the snakelike oil conveying pipe absorbs heat and cools the tool spindle, the oil spraying pipe sprays cooling oil to the tool for cooling, and double-circulation cooling work is achieved.

The invention provides a power battery double-circulation heat dissipation control device based on temperature measurement, and relates to the technical field of battery heat dissipation control, and the device comprises the steps: receiving driving input information, and carrying out the analysis of a battery power output demand; real-time battery temperature is obtained through temperature measurement, and battery temperature change prediction is carried out according to a battery discharge power sequence; heat dissipation control optimization is carried out according to the battery predicted temperature change time sequence, and a double-circulation heat dissipation control sequence is obtained; in the process that the driving system carries out automobile driving control and the heat dissipation system carries out heat dissipation control synchronously, real-time temperature data of a target automobile are collected through temperature measurement; and performing compensation control according to the real-time temperature data and the safety temperature deviation of the power battery. According to the invention, the technical problem that the heat dissipation efficiency of the battery is poor due to the fact that the adjustment of the heat dissipation control strategy is not flexible enough when the temperature changes rapidly in the prior art can be solved, and the heat dissipation efficiency of the battery is improved through the double-circulation heat dissipation system and real-time temperature control compensation.

The utility model provides a kind of double-cycle hot blast furnace drying device, including drying cabinet, hot blast furnace is equipped in the drying cabinet, the hot blast furnace is arranged in the one end of the drying cabinet, the other end of the drying cabinet is equipped with air blower, vertical heat exchange component and transverse heat exchange pipe are sequentially arranged on the flue gas passage of the hot blast furnace, the transverse heat exchange pipe is arranged at the top of the drying cabinet, the transverse heat exchange pipe end is connected with exhaust fan, the exhaust fan is arranged outside the drying cabinet.The utility model utilizes the heat generated by coal or biological pellet combustion and the heat carried by smoke to circulate heat dissipation through heat dissipation pipeline, makes hot air circulate and flow in container by fan, then dries the goods in drying cabinet, compared with traditional hot drying, drying time is shortened by more than 30%, and cost is reduced by 50%.

This utility model relates to the field of raw liquid storage tank technology, and provides a raw liquid storage tank with dual circulation channels, including a storage tank. A feed pipe is fixedly connected to the top of the storage tank, and a discharge pipe is fixedly connected to the bottom of the storage tank. A circulation pipe is installed on the outer wall of the storage tank, and a circulation pump is installed on the outer wall of the circulation pipe. A cleaning mechanism is installed on the top of the storage tank. The cleaning mechanism includes a drive motor fixedly installed on the top of the storage tank, and the output shaft of the drive motor is fixedly connected to a first rotating rod via a coupling. By starting the drive motor, this utility model can rotate a first bevel gear fixedly connected to one end of the first rotating rod, causing a second bevel gear to rotate, thereby driving a stirring rod fixedly connected to the outer wall of the sleeve to rotate and provide auxiliary stirring of the raw liquid. This allows a scraper to slide along the inner wall of the storage tank, facilitating the cleaning and scraping of raw liquid adhering to the inner wall of the storage tank.

The present application relates to a wheel-driven track-type gravity flow energy storage system and an energy storage method, wherein the wheel-driven track-type gravity flow energy storage system includes a dual-circulation bearing mechanism, a dual-circulation traction mechanism and a dual-wheel drive mechanism; the dual-circulation bearing mechanism includes two bearing rails, the dual-circulation traction mechanism includes two traction ropes, and the dual-wheel drive mechanism includes two parallel and vertically installed drive wheels, the traction ropes are wrapped around the drive wheels and continuously run under the drive wheels; a plurality of carrying mechanisms are arranged between the bearing rails, and the traction ropes pull and drive the carrying mechanisms to run continuously, and the carrying mechanisms are used to carry energy storage blocks as energy storage carriers; the driving wheels are connected to electric generators; the electric generators are used to drive the driving wheels to actively rotate, forming a continuous gravity flow by continuously lifting the energy storage blocks; and the driving wheels are driven to rotate by continuously descending the energy storage blocks, so as to convert gravitational potential energy into electrical energy of the electric generators to form a continuous energy flow.

The utility model relates to the technical field of resin production devices, and discloses double-circulation resin stirring equipment which comprises a stirring barrel, a heating barrel is arranged at the bottom of the stirring barrel, an interlayer is arranged on the side wall of the stirring barrel, and the top of the heating barrel is communicated with the interlayer through a vent hole; a fan is arranged at the position, below the ventilation hole, of the heating cylinder, a partition plate is arranged on the heating cylinder, a heating pipe is arranged above the partition plate, and a heater is arranged below the partition plate; one end of the heating cylinder is connected with an air inlet pipe; the interlayer is provided with an air outlet pipe, and the air inlet pipe is communicated with the air outlet pipe; a resin circulating output pipe is arranged on one side of the stirring barrel and connected with a pump body, the pump body is connected to the top of the stirring barrel through a resin circulating input pipe, and the bottom of the resin circulating input pipe penetrates through the heating barrel. The side wall and the middle of the mixing drum are uniformly heated, the inside and the outside of a resin material are uniformly heated in cooperation with the mixing device, and the heating and mixing uniformity of the material is further improved through a double-circulation structure.

The invention discloses a power generation system capable of improving efficiency, and the system comprises an energy feedback type double-circulation topological structure which comprises an energy internal circulation module and an electric power external transmission module. The energy internal circulation module comprises a prime mover unit and a first power generation unit connected with the prime mover unit to form an energy closed loop, and the power delivery module comprises a second power generation unit driven by the shaft end of the first power generation unit; the power output end of the second power generation unit is connected to a mains supply network, and the power input end of the prime motor unit is connected with the rectification output end of the first power generation unit to form a power supply loop. Compared with the prior art, the power generation system capable of improving the efficiency and the using method thereof have the advantages that transformation and application are convenient, and the energy utilization rate is increased.

The utility model discloses a kind of double-cycle oil pot systems, it is related to food processing technical field, including kettle body, first oil circulating assembly and second oil circulating assembly, the internal space of kettle body includes first frying cavity and second frying cavity, wherein: first frying cavity and second frying cavity are respectively corresponding front and rear of double-cycle oil pot system;First frying cavity and second frying cavity are set in production direction front and back link;First oil circulating assembly is cyclically communicated in first frying cavity;First oil circulating assembly is used to provide hot oil to first frying cavity circulation;Second oil circulating assembly is cyclically communicated in second frying cavity;Second oil circulating assembly is used to provide hot oil to second frying cavity circulation.The utility model provides a kind of double-cycle oil pot system, by setting first oil circulating assembly and second oil circulating assembly respectively in front and back in oil pot, can better control the oil temperature of different regions;In addition, double-cycle structure can increase oil circulating speed, reduce oil residue deposition carbonization.

A two-cycle turbo machine (gas turbine cycle and steam turbine cycle) operating at atmospheric air temperature is provided. The turbo machine operates with the temperature of the air in the atmosphere instead of fossil fuels in order to zero the emission of toxic gases such as CO, CO2 and NOx in nature and does not require any other fuel.

This invention discloses a dual-cycle, installation-free, energy-saving air conditioner that recovers waste heat for refrigeration, belonging to the field of air conditioning and refrigeration technology. It incorporates a compression refrigeration system and an adsorption refrigeration system within the casing. A sealed phase-change heat transfer coupler is fitted onto the outer wall of the compressor's high-pressure pipe. The inner sleeve of the coupler, along with the outer sleeve wound around the generator's outer wall, forms a vacuum phase-change loop via a steam riser and a liquid return pipe, transferring compressed waste heat across the system to the generator. A double-layer jacket for condensation heat recovery is fitted onto the outer wall of the second condenser, connected to an auxiliary heating coil via an electronic flow control valve, an intermediate heat exchanger, and a circulating pump. This auxiliary heating coil, alternately wound around the generator with the outer sleeve, forms a dual heat source compensation. The insulation box is divided into a desorption chamber and a cold air chamber. Cold air from the cold air chamber is guided to the compressor and the second condenser for secondary cooling via an electric air valve and a duct. The control unit coordinates and regulates each actuator based on multiple temperature thresholds. This invention achieves dynamic coupling of dual-cycle waste heat recovery and cold source reuse, eliminating the need for an outdoor unit and improving the overall system energy efficiency.

The utility model discloses a double-tower double-circulation desulfurization system which comprises a device body, a first desulfurization tower and a second desulfurization tower are arranged in the device body, the left side of the first desulfurization tower is connected with a connecting pipe, the front end of the first desulfurization tower is connected with a smoke inlet pipe, one end of the connecting pipe is connected with a pump body, and a control valve is installed above the connecting pipe. A cover plate is installed above the second desulfurization tower, a motor is installed above the cover plate, a connecting rod is connected to the lower portion of the motor, the connecting rod is located in the second desulfurization tower, a fixing ring is installed on the connecting rod, a smoke exhaust pipe is connected to the front end of the second desulfurization tower, a mounting groove is formed in the smoke exhaust pipe, and the front end of the smoke exhaust pipe is connected with a metal plate; a mounting groove is formed in the metal plate, a filter screen is placed in the mounting groove, and a butt joint groove is formed in the metal plate, so that gas and a desulfurizing agent entering the device can be fully and uniformly mixed, the contact area of the gas and the desulfurizing agent is increased, the desulfurization reaction speed is increased, and the working efficiency of the device is improved.

The utility model belongs to the technical field of boilers, and particularly relates to a heat accumulating type boiler double-circulation energy-saving and emission-reducing device which comprises a boiler body, a supporting frame is fixedly connected to the lower side of the boiler body, a heat accumulating water tank is installed on the upper side of the boiler body through a supporting plate, and a smoke circulating pipe is arranged on the upper side of the boiler body. The flue gas circulating pipe is fixedly connected with the heat storage water tank, the upper end of the flue gas circulating pipe is fixedly connected with a coil pipe, the coil pipe is located in the heat storage water tank, and the upper end of the heat storage water tank is fixedly connected with a filtering water tank. Under the action of the servo motor, the cam and other structures, the ball body can be intermittently extruded, and the agitating plate can move back and forth in the heat storage water tank to agitate the water body in cooperation with the deformation action of the second spring, so that the heat conduction efficiency is improved, and the good heating effect is guaranteed.

The present invention relates to the technical field of waste gas heating and purification treatment, and specifically relates to a double-cycle heat recovery regenerative oxidation energy-saving purification device, comprising: a combustion chamber, which is internally provided with a space for waste gas combustion; a regenerative chamber, which is arranged on both sides of the combustion chamber and is connected to the combustion chamber through pipelines; an intake pipe, which is installed on one side of the regenerative chamber and is used for inputting waste gas; an exhaust pipe, which is arranged at the top of the regenerative chamber and is used for discharging the purified gas; a rotating cylinder, which movably penetrates through the regenerative chamber; a fixed cylinder, which is fixedly arranged in an annular array on the outer side of the rotating cylinder; blades, which are movably arranged in the fixed cylinder and are movably connected to the openings; a swinging assembly, which is arranged in the fixed cylinder and is used for driving the blades to swing. The double-cycle heat recovery regenerative oxidation energy-saving purification device provided by the present invention realizes the swinging of the blades through the cooperation of multiple components such as a fixed frame, a rotating rod, a cam, a lifting sleeve, a round rod, a rotating plate, etc., thereby increasing the angle of contact with the gas and enhancing the gas mixing effect.

The invention relates to the technical field of industrial combustors, and particularly discloses a double-circulation fuel staged low-nitrogen combustor which comprises a shell, a first fuel system and a second fuel system are coaxially arranged in the shell, the first fuel system is arranged in the middle of the shell, and the second fuel system is arranged in the middle of the shell. The first fuel system comprises a first combustion channel, a rotational flow combustion stabilizer and a first-stage fuel nozzle which are sequentially communicated from inside to outside, the rotational flow combustion stabilizer is fixedly installed in the first combustion channel, and the first-stage fuel nozzle is installed at the outlet end of the first combustion channel and used for spraying out first-stage main fuel; the second-stage spray guns are evenly distributed in the circumferential direction of the shell and located on the periphery of the first combustion channel. The second-stage spray gun is used for spraying out second-stage graded fuel. According to the invention, the stability of flames and the continuous low value of nitrogen oxide emission can be ensured.

The invention discloses a wind power plant power curve AI calibration method considering environmental factors and performance degradation, and belongs to the field of new energy power generation. The objective of the invention is to solve the problem of large prediction deviation caused by insufficient consideration of environment dynamic change and lack of a fan degradation monitoring correction mechanism in a traditional power curve. The method comprises the steps of firstly constructing an environmental stress-microscopic damage mapping library, then generating a physical credible virtual sample to fill a data blind area, then establishing an implicit degradation-power coupling equation set, and finally solving in real time through edge side fast and slow double circulation. The fast cycle calibrates the power in a second level, the slow cycle periodically updates the degradation initial value and the correction parameter, and the double-cycle cooperation ensures the calibration accuracy. The method can integrate the environment and degradation factors, improves the power prediction precision, guarantees the stability of a power grid, improves the benefits of a wind power plant, and is suitable for wind power plant power optimization control.

The utility model belongs to the technical field of cooling equipment, and discloses cooling equipment for a UV (ultraviolet) curing machine, which comprises a rack, a chilled water pump and a cooling water pump are mounted on the rack, the output end of the chilled water pump is connected with a chilled water outlet pipe, and the input end of the chilled water pump is connected with an evaporator. The input end of the evaporator is connected with a chilled water return pipe; the input end of the cooling water pump is connected with a cooling water inlet pipe, the output end of the cooling water pump is connected with a condenser, and the output end of the condenser is connected with a cooling water outlet pipe; the evaporator is communicated with two gas-liquid separators and a throttling device, the output end of each gas-liquid separator is connected with a compressor, the output ends of the compressors and the output end of the throttling device are both communicated with the condenser, the condenser is a double-circulation condenser, and the number of the compressors is two, and the number of the gas-liquid separators is two correspondingly.

The utility model provides a double-circulation heat treatment quenching oil water-cooling device, which belongs to the field of water-cooling devices, and comprises a support plate, a quenching tank and a water tank, the circulating assembly comprises a water pump, a coiled pipe and a backflow pipe, the water pump is fixedly arranged on the supporting plate, the liquid inlet end of the water pump is fixedly connected with a water pumping pipe, the water pumping pipe penetrates through the water tank to be fixedly arranged, the coiled pipe is arranged in the quenching pool, and the two ends of the coiled pipe penetrate through the two sides of the quenching pool to be fixedly arranged; and one end of the coiled pipe is fixedly connected to the liquid outlet end of the water pump. According to the utility model, the circulating assembly is arranged, so that continuous and effective heat dissipation of quenching oil is ensured, and the production efficiency is improved; and the oil pump is further arranged, so that circulating flow of quenching oil can be promoted, the cooling rate of the quenching oil is increased, and the overall heat dissipation efficiency is improved.

The invention discloses a double-circulation fog bath dust remover which comprises a collecting box, a supporting plate is installed on the outer wall of one side of the collecting box through bolts, water pumps are installed on the outer walls of the two sides of the top of the supporting plate through bolts, a dust removing box is installed on the outer wall of one side of the top of the collecting box through bolts, and the dust removing box and the collecting box are communicated with each other; two side spray heads are inserted into the outer walls of the two sides of the dust removal box, four upper spray heads are inserted into the outer wall of one side of the top of the dust removal box, one ends of the upper spray heads and the side spray heads are connected with one water pump through pipelines, and a plurality of porous baffle plates are mounted on the two sides of the inner wall of the dust removal box through bolts; the porous baffle plates distributed in the dust removal box in a staggered manner can prolong a dust-containing airflow path and enhance collision adsorption of water mist and particles, cyclone blades of the cyclone washing box can realize gas-liquid-solid three-phase separation through centrifugal force, the dust capture rate is greatly improved, the dust removal rate can be greatly improved through the synergistic effect of the two, and the dust removal efficiency is greatly improved. The system is superior to a single-stage dust removal system.

The application provides a fluorine pump compressor double-cycle refrigeration system and a control method thereof. The refrigeration system comprises a compressor mode driven by a compressor cycle and a fluorine pump mode driven by a fluorine pump cycle, and further comprises a first liquid storage tank. The first liquid storage tank has a liquid storage state and a liquid discharge state. Before the refrigeration system is switched from the compressor mode to the fluorine pump mode, the first liquid storage tank is in the liquid discharge state, so that liquid refrigerant in the first liquid storage tank is at least partially released and discharged into the refrigerant cycle. Before the refrigeration system is switched from the fluorine pump mode to the compressor mode, the first liquid storage tank is in the liquid storage state, so that liquid refrigerant in the refrigerant cycle is partially recovered and stored in the first liquid storage tank. The application solves the problem that the required refrigerant filling amount is different in two modes, and realizes efficient operation of the double-cycle system in two operating modes, thereby achieving energy-saving effect.

The utility model discloses an air-cooling and water-cooling double-circulation generator set, which relates to the technical field of generator sets and comprises a bottom plate and a generator set body, a protective box is detachably mounted on the bottom plate, and the generator set body is positioned in the protective box. The device is reasonable in design structure, cold water is circularly conveyed into the first cold water pipeline and the second cold water pipeline through the leachate assembly, so that the second cold water pipeline achieves the water cooling effect on the generator set body, and air is conveyed into the air inlet groove through the first fan, so that the water cooling effect on the generator set body is improved. A first cold water pipeline can cool air entering an air inlet groove, cold air is formed and then conveyed into the protection box through an air inlet to cool the generator set body, and then the air absorbing heat is exhausted from the protection box through a second draught fan; and the situation that air after heat absorption directly enters the protection box without heat dissipation can be effectively avoided, and the water cooling effect and the air cooling effect on the generator set body are improved.

The invention relates to the technical field of oil and gas field well repair operation tools, in particular to a double-circulation scrap collector for well repair and a using method of the double-circulation scrap collector. Comprising an upper connector, an outer pipe, an inner pipe and a collecting system, the upper connector is connected with the outer pipe and the inner pipe to form an annular cavity, an inlet hole is formed in the top of the inner pipe and communicated with the annular cavity, outlet nozzles are distributed on the pipe wall and connected with the outer pipe in a sealed mode, and a sliding sleeve controls a fluid path through vertical movement in the inner pipe; during reverse circulation, the sliding sleeve moves downwards to open the inlet hole and the outlet nozzle, an annular cavity and inclined hole loop is formed, the lower end of the collecting pipe is closed through a conical cover, centrifugal separation of chippings is accelerated through built-in spiral blades, solid-liquid graded sedimentation is achieved through an outer wall conical ring set through a gradually-shrinking structure, and the chippings enter the collecting pipe to be stored through the outlet hole. The connecting sleeve and the lower connector fix the collecting pipe, and the annular cavity of the collecting pipe is in clearance fit with the conical ring to complete multi-stage filtration. According to the design, a double-circulation mode is achieved through sliding sleeve position switching, and chippings are efficiently collected according to the fluid dynamics principle.