314 results about "Mixed flow" patented technology

The invention discloses a quantitative recognition device for the number and size of bubbles at a rotating impeller of a multiphase pump. The quantitative recognition device comprises a two-phase flow experiment system, the multiphase pump, a high-speed camera, a light source and the like. The preprocessing and data analysis system and the deep learning system are arranged in the computer; the two-phase flow experiment system and the image acquisition system are electrically connected with the computer through lines. The invention further discloses a quantitative recognition method for the number and size of the bubbles at the rotating impeller of the multiphase pump. According to the method, the problems of low blistering recognition precision, low efficiency and large error caused by the existing manual measurement method are solved, and a reference method is provided for exploring the influence of gas distribution at the impeller in the multiphase pump on pump operation and optimizing design of the multiphase pump.

The invention provides a mixed flow velocity and flow measuring device and method, and particularly relates to the technical field of measuring instruments, and the device comprises a gas mixing assembly, a flow field optimization assembly, a flow velocity sensing assembly and a signal processing assembly. The gas mixing assembly comprises a differential channel mixer and a mixing cavity, and gas premixing is achieved. The flow field optimization assembly comprises a plurality of air duct partition plates and straight pipe sections, and the mixed gas conveying pipeline is divided into a plurality of independent divided air ducts; the flow velocity sensing assembly comprises a rectification assembly and a pressure sensing assembly, the rectification assembly comprises a pore plate and / or a grid, and the pressure sensing assembly comprises a plurality of uniformly distributed pressure sensing elements; the signal processing assembly comprises a differential pressure sensing transmitter, a static pressure sensing transmitter, a temperature sensing transmitter, an atmospheric pressure sensing transmitter and a data processing module. The pressure sensing element detects differential pressure signals, the differential pressure sensing transmitter converts the signals, the data processing module calculates the average flow velocity and flow of the mixed gas based on the signals and measurement data, and the measurement precision and accuracy are improved.

The utility model belongs to the technical field of reactors, and particularly relates to a multiphase unpowered reactor, which comprises a vertical shell, an upper reaction area and a lower liquid collection area are arranged in the shell, and the reaction area is communicated with the liquid collection area through a cap hood, and is characterized in that an annular pipe is arranged in the middle of the reaction area and is connected with a feed port of the shell through a feed pipe; a plurality of horizontal circulating hydraulic sprayers are arranged on the annular pipe, and the axis of at least one horizontal circulating hydraulic sprayer is tangential to the outer side of the annular pipe; a cross pipe is arranged at the lower part of the reaction area; a plurality of vertical circulating hydraulic sprayers are arranged on the cross pipe; and the horizontal circulating hydraulic spray head and the vertical circulating hydraulic spray head are venturi mixed flow spray heads. The utility model has the beneficial effects that the middle section and the lower section of the reaction area of the shell adopt two sections of liquid-phase hydraulic sprayers to be combined with the atomizing sprayers at the top of the reaction area to respectively form liquid flow in the vertical direction and the horizontal direction, so that the mixing effect of gas-phase, liquid-phase and solid-phase substances is enhanced, and the conversion efficiency is improved.

The utility model relates to the technical field of steam power generation turbines, in particular to a mixed flow type saturated steam power generation turbine which comprises a cylinder, the cylinder comprises a vertical inlet cavity and a horizontal outlet cavity which are communicated, and reinforcing ribs are arranged at the positions, corresponding to the joint of the two cavities, of the inner wall of the cylinder. A protruding structure at the bottom of the side, away from the horizontal outlet cavity, of the outer wall of the air cylinder is fixedly connected with a gearbox. The stationary blade assembly comprises a first-stage radial flow stationary blade fixedly arranged on the inner wall of the vertical inlet cavity and a second-stage axial flow stationary blade fixedly arranged on the reinforcing ribs; the rotor assembly comprises a rotating part connected with the high-speed shaft of the gear box, a first-stage radial flow vane impeller and a second-stage axial flow vane impeller, wherein the periphery of the rotating part is sleeved with the first-stage radial flow vane impeller and the second-stage axial flow vane impeller. The radial flow turbine and the axial flow turbine are combined to form the mixed-flow turbine, so that the working capacity of a single cylinder is improved, the power generation efficiency is improved, the cost is saved, and the unit size is reduced.

Crushing and feeding equipment and deep-sea mining and transport system [Solution] The crushing and feeding device of the present invention includes a main body and a hydraulic motor, the main body having at least one roller inside, the roller fitted onto a corresponding roller shaft, the roller shaft rotatably connected to the main body, at least three identical disc blades spaced equally apart in the axial direction of the roller, each disc blade having at least one cutting edge, plugs provided on both the front and rear vertical surfaces of the main body, the plugs fitting into the gap from the roller to the vertical surface of the main body, and the power output shaft of the hydraulic motor connected to the roller shaft. The deep-sea mining and conveying system of the present invention includes a relay station, a mixed-flow pump, a lifting pipe, and a mother ship, the relay station including a supply barrel, a supply pipe, and the crushing and feeding device connected in order from top to bottom, the lower opening of the supply pipe connected to the lifting pipe.

The application provides a rotary impingement oblique flow centrifugal combined compressor and application thereof, and belongs to the technical field of turbine engines, and comprises an outer casing structure, an inner casing structure, a working mechanism and a diffuser mechanism, the outer casing structure and the inner casing structure are rotary bodies, the inner casing structure is located inside the outer casing structure, the inner casing structure and the outer casing structure form a working cavity, the working mechanism is installed in the working cavity and is used for pressurizing airflow. Compared with the compression mode of a conventional combined compressor, the application draws lessons from the pressurization mode of a supersonic inlet, and the Mach number of airflow relative to a rotating impeller reaches 2 or more through high-speed rotation; at this time, a series of weak oblique shock waves are constructed through the contraction of a passage, and a high-efficiency compression system is obtained through the pressurization of the shock wave system, the single-stage pressure ratio of the high-efficiency compression system is much higher than that of a conventional compressor, and the application has the advantages of compact structure, simple processing and long service life.

The invention discloses a ship pipe fitting workshop scheduling method, system, equipment and medium based on a large model assisted evolutionary algorithm, and relates to the technical field of ship pipe fitting workshop production operation, and the specific steps are as follows: establishing a hybrid flow workshop scheduling model, adopting a multi-dimensional coding and decoding structure to code a workshop scheduling scheme, generating an initial population, and establishing a hybrid flow workshop scheduling model; and guiding the individuals to carry out iterative evolution by using a search operator sequence generated by the large model based on a historical evolution effect or a randomly generated search operator sequence, and outputting an optimal scheduling scheme with the shortest completion time. According to the method, modeling and solving of a multi-resource collaborative complex scheduling problem are realized, and the problem of insufficient scheduling scheme quality caused by neglect of transportation processing coupling or low algorithm search efficiency in an existing method is solved. By introducing a large-model intelligent guiding mechanism, the evolutionary process has adaptive optimization ability, and the feasibility of a scheduling scheme is ensured through a complete coding and decoding framework.

The present application relates to the field of gas-liquid mixing, and provides a bubble generator and an ozone aerator, wherein the bubble generator comprises an inlet connecting end, an outlet connecting end and a throttler assembly, the inlet of the throttler assembly is detachably connected with the inlet connecting end, the outlet of the throttler assembly is detachably connected with the outlet connecting end, the throttler assembly comprises at least two groups of throttling holes and mixing chambers, and the throttling holes and the mixing chambers are alternately arranged in the direction from the inlet connecting end to the outlet connecting end; the inner diameter of the throttling hole continuously decreases. The present application solves the low aeration efficiency in the prior art, the gas-liquid mixed flow enters the throttler assembly with multiple groups of throttling holes and mixing chambers through the inlet connecting end, the inner diameter of the multiple groups of throttling holes decreases in sequence to carry out multiple times of pressurization, gas dissolution and pressure reduction, and smaller bubbles such as nanoscale bubbles are obtained, the diameter of the generated bubbles is adjusted by arranging different groups of throttling holes and mixing chambers, and the adding efficiency of ozone and other gases is improved, and energy consumption is reduced.

The invention provides a liquid spraying type mixing and heating device, and relates to the technical field of heat exchange equipment, the liquid spraying type mixing and heating device comprises a shell, a first liquid inlet pipe and a second liquid inlet pipe, the shell is provided with a first-stage mixing flow channel and a second-stage mixing flow channel which are arranged in the first direction and communicate with each other, and the first-stage mixing flow channel and the second-stage mixing flow channel extend in the first direction; the first-stage mixing flow channel is of a Venturi structure, a liquid outlet is formed in the end, away from the first-stage mixing flow channel, of the second-stage mixing flow channel, and the cross sectional area of the second-stage mixing flow channel is gradually increased in the direction from the first-stage mixing flow channel to the liquid outlet; the first liquid inlet pipe and the second liquid inlet pipe are both communicated with the first-stage mixing flow channel, the first liquid inlet pipe is used for introducing a liquid medium to be heated into the first-stage mixing flow channel, and the second liquid inlet pipe is used for introducing a high-temperature liquid medium into the first-stage mixing flow channel. The high-temperature liquid medium is adopted to heat the to-be-heated liquid medium, the influence of the bubble blasting phenomenon on the heating device can be effectively avoided, and the service life is ensured.

The application belongs to the technical field of heat supply equipment, and provides a regional heat supply mixing tank based on turbulence structure optimization, which comprises a first turbulence component and a second turbulence component arranged in a tank body along a water flow direction; the first turbulence component is located behind a low-temperature water inlet and behind a high-temperature water inlet, and is used for blocking the channel of cold water sticking to the bottom and actively inducing to the middle or upper part of the tank body; the second turbulence component is located in front of a medium-temperature water outlet, and is used for forcibly turning and cutting the mixed fluid about to flow out, so as to realize the thermal deviation homogenization of the mixed fluid. The mixing tank is used for hydraulic decoupling and heat mixing of a primary circuit and a secondary circuit of a heat network, and the internal turbulence structure is additionally arranged and optimized to eliminate the thermal stratification phenomenon in the tank, and then the temperature uniformity of the water outlet is improved.

The impeller device comprises a hub, a plurality of axial flow blades, a plurality of mixed flow blades and a fixed impeller, and the hub can rotate with the axis as the center axis; the axial flow blades are installed on the periphery of the hub in a surrounding mode. Each flow mixing blade is mounted on the upper surface of the hub, and a plurality of flow mixing blades are arranged around the central shaft to form a flow mixing blade group; the fixed impeller is close to the upper surface of the hub and is coaxial with the hub, and the fixed impeller is arranged on the periphery of the mixed flow blade set so that corresponding flow channels can be formed among the mixed flow blades, the fixed impeller and the axial flow blades. According to the impeller device and the gas compressor, rotation of the mixed-flow blades provides remarkable pressure rise, rotation of the axial-flow blades provides large-flow loads, a wider efficient operation range, higher single-stage pressure rise and more stable flowing are achieved, the fixed impeller breaks off fluid with a strong rotation component (circumferential speed) to be straight, the fluid flows into a next-stage flow channel, and the flow of the fluid flows into the next-stage flow channel. A flow field is stabilized, and vibration and noise are reduced.

The utility model belongs to the technical field of special-shaped flow mixers, and particularly relates to an efficient special-shaped flow mixer which comprises a shell, a plurality of pipelines, a fixing frame and a filter screen and further comprises a channel, the channel is formed in the shell, the pipelines are all fixedly installed at one end of the shell, the fixing frame is installed in the channel in an inserted mode, and the filter screen is fixedly installed in the fixing frame. Two guide plates are mounted in the channel in a sliding manner; the two threaded rods are rotationally installed in the channel and located below the two guide plates correspondingly, the upper ends of the two threaded rods extend into the two guide plates correspondingly, and the two threaded rods are in threaded connection with the two guide plates correspondingly; the fixing assembly is located in the shell and used for fixing the position of the fixing frame; the flue gas is fully and efficiently mixed in the moving process through the bent path, meanwhile, the path can be adjusted according to the flue gas condition, the application range is wide, meanwhile, a worker can conveniently clean the filter screen, and tools are not needed.

The present application belongs to the technical field of Venturi tube, and particularly relates to a low-temperature plasma wastewater treatment method based on a Venturi tube and a Venturi tube discharge plasma device. The device comprises a Venturi tube, which comprises an inlet section, a throat connected to the inlet section, and a diffusion section connected to the throat. A feed inlet is arranged at the inlet of the inlet section, a discharge outlet is arranged at the outlet of the diffusion section, and a negative pressure port is arranged at the connection between the inlet section and the throat. The Venturi tube discharge plasma device further comprises an electrode connected to an excitation power source. The method is applied in the device, gas and wastewater are mixed in the device, and wastewater is treated by a plasma and micro-bubble mixed flow after the device is turned on. The mixing mode of the gas and the wastewater in the device has two modes. The device and the method have high practicability and high removal efficiency for organic pollutants in wastewater.

The application discloses a kind of based on flow pattern recognition's deep sea mining multiphase flow particle delivery prediction and regulation method, the method includes: by acquisition equipment periodic acquisition pressure in pipeline, flow, bubble or droplet volume fraction, solid particle volume fraction in different positions;According to pipe diameter and the gas-liquid ratio obtained by calculation, mixed flow velocity, call pre-built flow pattern division algorithm, distinguish bubble flow, slug flow, vortex, annular flow;Solve the gas-liquid discrete unit volume fraction of any diameter in different flow patterns;According to the gas-liquid discrete phase volume fraction, obtain the delivery speed of solid particles in multiphase flow;Whether the solid particle delivery speed obtained is judged to reach the best interval, according to the result control multiphase flow in pipeline flow pattern or gas-liquid ratio, to adjust the delivery speed of solid particles.The present application can improve the efficiency of seabed mineral exploitation, and avoid the dangerous flow pattern formed by unreasonable gas-liquid distribution ratio, efficiency and safety are taken into account.

The utility model relates to a cracking gasification generator and a biomass gasification furnace with the same, which belong to the technical field of gasification furnaces, the cracking gasification generator comprises an annular pipe, the annular pipe is provided with a biomass gas inlet, a high-temperature gas inlet and gas distribution holes, a heat exchange cavity and a flow mixing cavity are arranged in the annular pipe, a flow guide heat exchange channel and a heating channel are arranged in the heat exchange cavity, and the heating channel is communicated with the flow guide heat exchange channel. One end of the flow guide heat exchange channel is communicated with the biomass gas inlet, the other end of the flow guide heat exchange channel is communicated with the mixed flow cavity, one end of the heating channel is communicated with the high-temperature gas inlet, the other end of the heating channel is communicated with the mixed flow cavity, and the gas distribution holes are distributed in the cavity wall of the mixed flow cavity. And the wood tar is fully subjected to heat exchange with high-temperature gas, so that the wood tar is subjected to a thermal chemical reaction with superheated water vapor, carbon powder and other airflow carriers in a high-temperature environment, the wood tar is synchronously cracked and catalyzed in the biomass gas production process, and the wood tar content in the biomass gas is greatly reduced.

A screw compressor includes an impeller to rotate about an axis and configured to receive a working fluid directed into the impeller along the axis. The screw compressor also includes a diffuser positioned downstream of the impeller, where the diffuser may receive the working fluid from the impeller. The diffuser includes a plurality of first vanes, where the plurality of first vanes defines a plurality of first vane passages, and each first vane passage of the plurality of first vane passages may receive the working fluid. The diffuser also includes a plurality of second vanes, where each second vane of the plurality of second vanes is positioned within a respective first vane passage of the plurality of first vane passages. Each first vane includes a first arc length, each second vane includes a second arc length, and the first arc length is greater than the second arc length.

The high-energy efficiency-saving upper air inlet furnace end comprises a furnace base, an inner ring fire distribution cavity and an outer ring fire distribution cavity, the inner ring fire distribution cavity and the outer ring fire distribution cavity are connected to the upper portion of the furnace base, and one side of the furnace base is further provided with a first air pipe and a second air pipe which communicate with the inner ring fire distribution cavity and the outer ring fire distribution cavity correspondingly. An inner fire distribution ring and an outer fire distribution ring which are respectively communicated with the inner ring fire distribution cavity and the outer ring fire distribution cavity are arranged at the top of the furnace seat; a flow guide top cover is further arranged on the top of the outer fire distribution ring, a flow mixing cavity is formed between the flow guide top cover and the outer fire distribution ring, a flow guide opening is formed in the flow guide top cover, and a rotational flow flow guide bottom wall is formed in the position, close to the flow guide opening, of the inner bottom wall of the flow mixing cavity. The inner fire distribution ring is in the shape of an annular cavity with an opening in the top face, and an oxygen supply opening is formed in one side wall of the inner fire distribution ring in an inwards-concave mode. Compared with the prior art, the high-energy and energy-saving upper air inlet furnace end has the advantages that the high-energy and energy-saving upper air inlet furnace end is provided with a drainage air channel structure, and mixing and stable combustion are enhanced.

The invention provides a mixed flow heat exchange device for outputting hot water, which is characterized in that the connecting line of the vertexes of the section of a jet pipe is a square, a pipe wall is formed between the adjacent vertexes of the square, the pipe wall is bent, the bending direction of the bend faces the center of the square, and jet holes for jetting from the inside of the jet pipe to the outside of the jet pipe are formed in the pipe wall. The invention provides a heat exchange device adopting a novel square jet pipe, so that the mixing heat exchange effect of two fluids is better and more uniform, and the heat exchange efficiency is improved.

The utility model relates to the technical field of water conservancy diversion and pressure reduction, and discloses a water conservancy diversion and pressure reduction device for environmental engineering, which comprises a canal main body, diversion and pressure reduction mechanisms are arranged on both sides of the canal main body, an adjusting mechanism is arranged at the top of the canal main body, and each diversion and pressure reduction mechanism comprises an anti-seepage retaining wall. The anti-seepage retaining walls are arranged on the two sides of the anti-seepage retaining walls, the side, away from the canal body, of each anti-seepage retaining wall is provided with a sewage canal, sidewalks are arranged on the two sides of the top of the canal body, and ventilation openings are formed between the sidewalks and the canal body. According to the water conservancy flow dividing and pressure reducing device for environmental engineering, the problems in rainwater and sewage separation design and construction in a river channel are completely solved, seepage and mixed flow phenomena are avoided, and the environment is kept good. The protective fence is simple in structure, convenient to operate and easy to implement, the height of the protective fence can be adjusted according to the height of water flow in the water channel body, and the using effect of the protective fence is improved.

The present application provides a fluid distribution valve, comprising: a first opening and closing assembly arranged in a fluid inlet chamber, the first opening and closing assembly being displaceable along an axis to selectively open and close the communication between a flow inlet pipe and the fluid inlet chamber, and to close the communication between the fluid inlet chamber and a first fluid outlet chamber; and a second opening and closing assembly arranged in a second fluid outlet chamber, the second opening and closing assembly being displaceable along the axis to selectively open and close the communication between the fluid inlet chamber and the second fluid outlet chamber. The present application also provides a fluid supply system, comprising: a pump device for discharging the fluid; and the fluid distribution valve connected to the pump device. The fluid distribution valve does not have the problem of mixed flow in different outlet circuits during use, and is particularly suitable for application scenarios requiring more than two distribution circuits. The fluid supply system of the present application achieves the control function of supplying fluid to multiple fluid distribution circuits by controlling the motor speed of the pump device, thereby eliminating the need for electrically driven control of the valve stem.

The embodiment of the invention discloses an oil-water mixed fluid measuring instrument and an oil-water mixed fluid measuring method. The oil-water mixed fluid measuring instrument comprises an oil conveying pipeline, a static pressure bypass, a measuring bypass and a pressure measuring assembly. According to the oil-water mixed fluid measuring instrument provided by the embodiment of the invention, oil-water mixed circulation conveyed by the oil conveying pipeline can be sampled at any time, exploitation or production is not influenced in the sampling process, the oil-water ratio of the oil-water mixed circulation can be directly determined through the arrangement of the static pressure bypass and the pressure measuring assembly, and the detection efficiency is high.

The utility model relates to the technical field of material feeding devices, and discloses a material feeding device for a thickener, which comprises a feeding tank and the thickener, the feeding tank is a round barrel with a round opening at the lower end, and the feeding tank is fixedly mounted at the central position of the thickener. According to the utility model, through a linkage structure of the movable disc, the scraping plate and the rotating column, intelligent switching between a mixing function and a cleaning function is realized. When the rotating motor drives the rotating column to rotate, the movable disc drives the connecting block and the scraping plate to synchronously rotate to form stirring blades, and a mixed flow state of a flocculating agent and slurry is forcibly scattered; after mixing is completed, the telescopic device pushes the connecting ring to move upwards, the movable disc drives the limiting block to ascend along the sliding groove, the scraping plate is forced to transversely expand outwards to be tightly attached to the inner wall of the feeding tank, and residues are automatically scraped in the rotating process. According to the design, the switching of a mixing mode and a cleaning mode is realized through a single driving source, so that the dispersion uniformity of a flocculating agent is improved, and the efficiency loss caused by traditional manual slag removal is avoided.

The present invention provides a device with a simple configuration that efficiently dissolves atmospheric oxygen into a liquid. [Solution] The apparatus comprises a liquid injection section for pouring liquid, and a bent hollow pipe having an upper vertical pipe section, a lower vertical pipe section, and a horizontal pipe section connecting them. When the internal cross-sectional area of ​​the horizontal pipe section is 1a' and the cross-sectional area of ​​the liquid flowing inside the horizontal pipe section is 1b', the condition 1 / 5 ≤ 1b' / 1a' ≤ 2 / 3 is satisfied. Within this range, a cavity is formed in the horizontal pipe section where the mixed flow and the inner wall of the bent hollow pipe form the outer circumference. Bubbles are stored in the cavity, and repeated movement of bubbles between the cavity and the mixed flow promotes the dissolution of oxygen into the liquid.

This invention provides a dynamic control device and method for efficient extraction of gas from directional long boreholes in roof fracture zones. The method calculates the mixed flow rate of the extracted gas using the orifice flow coefficient of the orifice flow meter and the monitored pressure difference across the orifice. Based on the methane concentration monitored by the methane sensor, the pure gas extraction quantity is calculated. During the drilling extraction process, the extraction negative pressure is adjusted by regulating the opening angle of an adjustable electrically controlled valve at set time intervals. The negative pressure at the orifice when the pure extraction quantity of each directional long borehole in the roof fracture zone is maximized is determined. Then, the opening degree of the adjustable electrically controlled valve is adjusted using a PLC to adjust the extraction negative pressure of all boreholes to the value at which the pure extraction quantity is maximized, thereby optimizing extraction efficiency. This invention enables unified control of all directional long boreholes in roof fracture zones within a drilling site, effectively improving extraction efficiency and ensuring safe mining of the working face.

1. The name of the design product: shaft mixed flow pump (integral type). 2. The use of the design product: applied to urban industrial and mining water supply and drainage, municipal engineering, sewage treatment; steel, metallurgy, power plant, shipbuilding, water plant circulating water, water lifting and other aspects; flood control, water diversion project, river regulation; farmland irrigation, water plant breeding, salt field, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application relates to a rainwater and sewage mixed flow ecological purification device for urban lakes and a use method, which comprises a purification box, a mixed flow pipe is communicated with the left end of the purification box, floating plates are connected to the front and back of the outer wall of the purification box, two parallel conveying rollers are rotationally connected in the purification box, a driving motor is connected to the front end of the upper conveying roller, a grating net belt is arranged between the outer walls of the two conveying rollers, a discharge box is connected to the right end of the purification box, a waste collecting box is connected to the front end of the discharge box, a filter frame is connected to the right side of the inner cavity of the purification box, biological fillers are filled in the filter frame, a water outlet is arranged in the bottom of the right side wall of the purification box, and a storage battery and a wireless controller are connected to the outer wall of the purification box. The application has a reasonable structure and can achieve good ecological purification effect.

The smoke dust recovery device comprises a machining table, a screw rod is rotatably installed on the bottom wall of the machining table through a movable frame, a motor connected with the screw rod is fixedly installed on the outer wall of the movable frame, a movable block is rotatably installed on the outer wall of the screw rod through threads, a limiting rod is fixedly installed in the movable frame, and a dust collection device is installed on the limiting rod. And the limiting rod slidably penetrates through a moving block, a mixed flow fan pump is fixedly installed on the outer wall of the moving block through a supporting plate, and an extension pipe is slidably installed on the outer wall of an inlet pipe of the mixed flow fan pump in a sealed mode. By arranging the screw rod, the moving block, the supporting plate and other assemblies, the motor drives the screw rod to rotate, the moving block can stably move in the axial direction of the screw rod under the dual action of thread transmission and the limiting rod, and then the supporting plate, the mixed flow fan pump, the extending pipe and the dust suction hood are driven to transversely adjust the positions; by means of the design, the dust collection cover can easily cover different welding stations, and the dust collection efficiency is greatly improved.

The utility model relates to a large-flow energy-saving coil pipe type heat exchanger which comprises an energy-saving heat exchange assembly, a matching auxiliary assembly is arranged at the inner end of the energy-saving heat exchange assembly, a water stirring and flow mixing assembly is arranged in the matching auxiliary assembly, and the problems that the inner wall of an existing pipe lacks an effective enhanced heat exchange structure, the flowing state of fluid in the pipe is single, the turbulence degree is low, and the heat exchange efficiency is high are solved. In order to solve the problem that the overall heat exchange efficiency is difficult to improve due to the fact that heat exchange mainly depends on natural convection, a water stirring and flow mixing assembly is arranged, when fluid flows in an inner coil pipe, a motor is started to be matched with a vertical electric guide rail, and a plurality of multi-dimensional rotating blades connected with a displacement shaft piece can vertically move up and down in the axial direction of a vertical rod; the elastic accessory is connected with the shakable hollow-out ball, the metal outer layer drives the shakable hollow-out ball to move correspondingly under the action of the magnetic field of the strong magnetic end block, and the elastic accessory plays a role in buffering impact force and guaranteeing flexible movement of the shakable hollow-out ball.

The invention provides a portable bladeless fan which comprises a shell provided with a first air inlet part and a first air outlet part, and the first air inlet part and the first air outlet part are communicated in the shell; the pressurizing part is connected with the front side of the shell and comprises a pressurizing seat, and the pressurizing seat and the shell form a first air outlet part at the air outlet end; the mixed flow fan is located in the shell and rotates around a rotating shaft to generate airflow; and an area formed by the pressurizing seat at the air outlet end in a backward concave manner is a first high negative pressure area.

A water tank is connected with a main water pump and an auxiliary water pump which are connected in parallel, and overflow stop valves are respectively arranged at outlets of the main water pump and the auxiliary water pump; the water pump is divided into two paths, the first path leads to the air cylinder through a first bypass service valve, the second path is connected with a cooling device, the cooling device is composed of two coolers connected in parallel, the cooling device is connected with a filtering device, and an outlet of the filtering device leads to the filler; a mixed flow valve is connected between the rear end of the cooling device and the front end of the first bypass service valve, and an outlet of the mixed flow valve leads to the air cylinder and leads to the filtering device through the second bypass service valve. The mixed flow valve is adopted to adjust the temperature, that is, the temperature is automatically adjusted through the change of the opening degree of the adjusting valve, and the temperature stability during operation of the softened water station is realized. Overflow stop valves are arranged at outlets of the main water pump and the auxiliary water pump respectively, the minimum continuous stable flow of the centrifugal water pump is met by adjusting the stop valves, and the centrifugal water pump can be protected to operate under safe pressure.