66results about How to "Improve heat transfer coefficient" patented technology

The invention discloses a flue gas waste heat recovery device and method for a garbage incinerator. Relates to the technical field of waste incineration treatment and comprises a waste heat recovery box, a heat exchange pipe set driven by a main control gear, a transfer gear and a fixed gear ring is arranged in the waste heat recovery box, and heat exchange pipes conduct revolution and autorotation in smoke at the same time to enhance heat exchange. Accumulated dust on the outer surface of the heat exchange tube is removed through the rotating treatment scraper and the removing brush cylinder, and the reciprocating treatment kettle is used for knocking the tube wall of the heat exchange tube to shake off the dust; the flow speed and the flow direction of flue gas can be intelligently adjusted through an angle-adjustable speed adjusting plate on a treatment scraper, so that the device is suitable for different working conditions; the device realizes efficient and stable recovery of flue gas waste heat, can keep a heat exchange surface clean on line, and is high in adaptability.

The invention relates to the technical field of heat exchangers, and particularly discloses an energy-saving plate-fin heat exchanger which comprises a box body, a first fin plate group, a second fin plate group, a partition plate and a mounting table, a first edge sealing plate and a second edge sealing plate are arranged on the partition plate, a first driving mechanism is arranged on the first edge sealing plate, a second driving mechanism is arranged on the second edge sealing plate, and the mounting table is arranged on the box body. A waste heat utilization mechanism is arranged in the mounting table; the first driving mechanism can adjust the length of the heated channel, and the second driving mechanism can adjust the length of the heating channel, so that the flow velocity of the heated liquid and the heating liquid is increased, the turbulence degree of the heated liquid can be enhanced by increasing the flow velocity, a thermal boundary layer is destroyed, the heat transfer coefficient is increased, and the heating efficiency is improved. Therefore, the heating effect on the heated liquid is improved, the liquid outlet temperature of the heated liquid can be controlled more accurately, the waste heat utilization mechanism can further utilize waste heat carried by the heating liquid output from the box body, and the energy utilization rate is increased.

The invention discloses a double-curved-surface non-uniform wetting micro-nano structure for strengthening boiling / evaporation heat transfer and a manufacturing method and application, and belongs to the technical field of heat transfer. The structure comprises a substrate and a double-curved-surface three-dimensional super-hydrophilic micro-nano structure array; the substrate has hydrophobicity / super-hydrophobicity; the array is composed of a plurality of upwards-convex hyperboloid three-dimensional super-hydrophilic micro-nano structures. The hyperboloid three-dimensional super-hydrophilic micro-nano structure comprises a convex main body and a top concave cavity; and the side wall of the convex main body and the inner wall of the concave cavity at the top are curved surface structures and are full of super-hydrophilic micro-nano porous structures. The transverse growth space of bubbles generated by boiling is restrained, expansion and combination of the bubbles generated by boiling are restrained, nucleation and separation of the bubbles in a super-hydrophobic area are promoted, the water storage capacity can be increased through a top catenary face, boiling / evaporation liquid supply is enhanced, capillary liquid supply is promoted, and the heat transfer coefficient is increased through combination of a hyperboloid mixed super-wetting three-dimensional structure; and the heat transfer limit is improved by means of the double-curved-surface three-dimensional curved surface pinning effect under the ultrahigh superheat degree by adhering liquid film boiling.

The invention relates to a streaming pipe, a streaming heat exchanger, a streaming heating pipe and application thereof.The streaming pipe comprises a first pipe fitting which is communicated end to end to form a first channel, the first channel is provided with a first partition assembly, and the first partition assembly divides the first channel into at least two independent flow channels; the first separation assembly is spirally distributed in the axis direction of the first pipe fitting, the first separation assembly is attached and fixed to the inner wall of the first pipe fitting in a diameter reducing extrusion mode, and meanwhile a gap between the inner wall of the first pipe fitting and the first separation assembly is eliminated in the diameter reducing extrusion mode. According to the heat exchanger, the first pipe fitting is divided into a plurality of independent partition assemblies through the first partition assemblies, the heat exchange stroke can be increased, meanwhile, the first partition assemblies and the second partition assemblies are spirally distributed in the axis direction, turbulent flow can be generated on fluid, the fluid spirally advances around the axis, the heat exchange coefficient of the fluid and the pipe wall is increased, and the heat exchange efficiency is improved; meanwhile, the first separation assembly and the second separation assembly can improve the strength of the heat exchanger.

The invention discloses a battery fire extinguishing agent and a preparation method and application thereof. Preparation raw materials of the battery fire extinguishing agent comprise water, hydrated salts and auxiliary materials, the auxiliary materials comprise at least one of nano-particles or an organic binder, and the mass fraction of the hydrated salts in the preparation raw materials is 10%-80%. The battery fire extinguishing agent contains high-concentration hydrated salts, can effectively inhibit the occurrence of membrane boiling, and can interact with the nanoparticles and the organic binder to remarkably improve the fire extinguishing capacity and the cooling effect of the fire extinguishing agent.

The utility model relates to the technical field of boiler devices, in particular to a boiler heat exchange tube, which comprises a finned tube and a sleeve sleeved outside the finned tube, the finned tube consists of four groups of fin units and four arc-shaped plates, the fin units are circumferentially arrayed along the axis of the sleeve, the arc-shaped plates are connected with the fin units, each fin unit comprises a plurality of parallel fins, and the arc-shaped plates are connected with the fin units. The fins are arranged at equal intervals, the interval is A, the heights of the fins are gradually increased and then decreased in the clockwise direction of the sleeve, the interval between a straight line L which is parallel to the fins and passes through the circle center of the sleeve and the highest fin is half of the interval A, and the distance between the top ends of the highest fins in adjacent fin units is equal to the interval A; the fins among the four fin units are matched with one another to form a plurality of L-shaped channels distributed in the radial direction of the sleeve, the corners of the L-shaped channels are communicated with the adjacent L-shaped channels, and the temperature difference between high-temperature gas in the center and high-temperature gas at the edge is small, so that the heat conductivity coefficient can be effectively increased, and the heat exchange efficiency is improved.

The invention belongs to the technical field of data center cooling, and relates to a modular self-adaptive immersion jet liquid cooling system for a high-power server, the high-power server comprises a case, the case is provided with a sealed cavity, the sealed cavity is internally provided with a plurality of devices with different heating degrees, the devices are completely immersed in a refrigerant, and the components are arranged in the sealed cavity. A modularized jet flow device is arranged on a device with the relatively high heating degree, the modularized jet flow device independently conducts jet flow cooling on the device with the relatively high heating degree, and the sealing cavity is further provided with a machine box refrigerant inlet and a machine box refrigerant outlet. And the case refrigerant inlet and the case refrigerant outlet penetrate from the inside of the sealing cavity to the outside of the case. The invention aims to solve the problem that high-efficiency and accurate heat dissipation of high-power heating elements such as chips cannot be realized in the prior art.

The invention relates to the technical field of copper pipe heat dissipation, in particular to a micro-channel heat dissipation device based on a copper pipe structure, which comprises a heat dissipation substrate, a copper pipe type heat dissipation channel and a liquid cooling circulation system, the copper pipe type heat dissipation channel is composed of a plurality of plastic copper pipes and replaces a traditional micro-channel or vapor chamber structure. The copper pipe is embedded or fixed in the heat dissipation substrate or on the surface of the heat dissipation substrate, cooling liquid circulates in the copper pipe, and efficient heat dissipation is achieved through the combined action of forced convection heat exchange and heat transfer; the copper pipe has good plasticity and can be subjected to three-dimensional bending forming according to heat source distribution and spatial layout, through the synergistic effect of forced convection and phase change heat transfer, the heat transfer efficiency is improved, particularly, extremely high local heat flow density can be coped, the chip is effectively prevented from being overheated, and the heat transfer efficiency is improved. The heat dissipation channel can be bent and formed in a three-dimensional space according to heat source distribution, accurate matching with the heat source form is achieved, limitation of traditional plane heat dissipation is broken through, and optimal configuration of heat dissipation capacity and heat flux density is achieved.

The invention discloses a micro-channel reactor and micro-channel reaction equipment, the micro-channel reactor comprises a reaction plate, a support transition plate and a heat exchange plate which are connected in a laminated manner, grooves are processed in the reaction plate to form micro-reaction channels, grooves are processed in the heat exchange plate to form heat exchange channels, and the support transition plate is separated between the reaction plate and the heat exchange plate; the micro-reaction channel comprises at least two micro-channel units and a middle flow channel connected with the adjacent micro-channel units, each micro-channel unit comprises a flow channel inlet, a flow channel outlet and a heart-shaped mixing cavity, an arc-shaped flow baffle and at least one turbulent flow column are arranged in the heart-shaped mixing cavity, the concave side of the arc-shaped flow baffle faces the flow channel inlet, and the convex side of the arc-shaped flow baffle faces the turbulent flow column. And the turbulent flow column is arranged between the arc-shaped flow baffle and the flow channel outlet. Through cooperation of the heart-shaped mixing cavity, the arc-shaped flow baffles and the turbulent flow columns, the particle suspension rate and the mass transfer capacity of the micro-reaction channel are effectively improved, then the reaction efficiency is improved, and the device can be used for achieving continuous preparation of nano-drugs.

The invention discloses an air conditioner air-cooled heat pump air inlet cooling system which comprises an air inlet cooling cylinder, a front end cover is fixedly installed at one end of the air inlet cooling cylinder, a rear end cover is fixedly installed at the other end of the air inlet cooling cylinder, a cooling core set is installed in the air inlet cooling cylinder, and an air distribution disc is arranged at one end of the cooling core set. An air gathering disc is arranged at the other end of the cooling core set, an air outlet pipe is installed in the air gathering disc in a penetrating mode, an air inlet pipe is installed in the air distributing disc in a penetrating mode, and the air inlet pipe is fixedly arranged on the front end cover in a penetrating mode. According to the inlet air cooling system of the air conditioner air-cooled heat pump, when hot air circulates in the outer coil pipe and the inner coil pipe, the hot air is filled in the edge cooling pipe and the center cooling pipe, the hot air wraps the outer coil pipe and the inner coil pipe, and the outer layer and the inner layer of the hot air can be subjected to uniform cooling and heat exchange work; and uniform cooling and heat exchange work is carried out on the air beams, and the situation that the temperature of the inner layer and the temperature of the outer layer of airflow entering the equipment are inconsistent is avoided.

This utility model relates to the field of chemical cooling technology, and provides a production device for cooling chemical mixtures, including a reaction vessel. A cooling chamber is provided on the outside of the reaction vessel, and a cooling pipe is provided inside the cooling chamber. The cooling pipe is wound around the outer wall of the reaction vessel. A stirring mechanism is provided inside the reaction vessel. Heat dissipation mechanisms are provided on both sides of the cooling chamber on the outside of the reaction vessel. By providing a stirring mechanism and a heat dissipation mechanism, this utility model can provide forced air cooling for the cooling pipe and cooling medium, accelerating the diffusion of heat to the environment. While improving the cooling effect, only one drive motor is needed to drive the stirring blades and the cooling fan at the same time, reducing the number of power devices, simplifying the equipment structure, and reducing energy consumption and maintenance costs.

This invention discloses an evaporator for an adsorption refrigeration machine and the adsorption refrigeration machine itself, comprising: a cooling medium inlet and a cooling medium outlet; a liquid refrigerant inlet and a gaseous refrigerant outlet; at least one cooling medium flow plate for supplying cooling medium flow, each cooling medium flow plate being connected to both the cooling medium inlet and the cooling medium outlet; and at least one refrigerant flow plate for supplying refrigerant flow, each refrigerant flow plate being connected to both the liquid refrigerant inlet and the gaseous refrigerant outlet. The refrigerant flow plates and cooling medium flow plates are alternately stacked. This evaporator is a plate evaporator. By alternately stacking the cooling medium flow plates and refrigerant flow plates, plate cavities are formed between any adjacent cooling medium flow plates and refrigerant flow plates, creating alternating cooling medium flow spaces and refrigerant flow spaces. This achieves interactive heat exchange between the refrigerant and the cooling medium, resulting in a cooling effect. It has a high heat transfer coefficient, low thermal resistance, and high evaporation efficiency.

The utility model relates to high pressure reaction kettle technical field especially is a kind of high pressure reaction kettle quick heating device, including kettle body, half pipe jacket, jacket temperature -keeping cover, kettle cover, stirring mechanism, charging hole and lug;The utility model is through the heating structure design of half pipe jacket+spiral flow guide plate, sets up spiral flow guide plate in half pipe jacket, makes heat carrier form turbulent flow, increases flow velocity and expands heat exchange area, spiral flow guide plate is made of high heat conduction material copper alloy, absorbs the heat of medium heat conduction to kettle body while playing the flow guiding effect, to improve heat transfer coefficient, make kettle body quick heating, and cover jacket temperature -keeping cover in the outside of half pipe jacket, the nanometer micropore heat insulation material of jacket temperature -keeping cover inside is made of nanometer micropore heat insulation material, is filled in the gap between inner shell and half pipe jacket, and vacuum interlayer is equipped between inner shell and outer shell, reduce heat loss in the process of heating under this structure effect, to improve kettle body heating efficiency.

The utility model discloses an efficient self-cleaning device in a heat exchange tube. The efficient self-cleaning device comprises a scraper device, the heat exchange tube, a spring, a fixed end and an end cover. The scraping blade device comprises a central shaft and a scraping blade, and the scraping blade is fixed on the central shaft; one end of the fixed end is fixed at one end of the heat exchange tube, and the end cover is mounted at the other end of the fixed end; one end of the spring is hung on the end cover, and the other end is hung on the scraper device. According to the utility model, a self-operated mode is adopted, so that automatic operation of the scale cleaning part is realized, and extra manpower and energy do not need to be consumed; the center shaft is made of a hollow pipe and a light material, gravity-buoyancy dynamic balance is achieved, it is guaranteed that the scraper and the heat exchange pipe run concentrically, and the stuck failure rate is reduced. The scraper blade adopts a spiral curved surface structure, generates high-intensity turbulent flow, destroys a thermal boundary layer, and has the functions of dirt removal and heat transfer enhancement. The dirt deposition probability is reduced through fluid disturbance, and the heat transfer coefficient is greatly increased; flow change is dynamically responded through the spring device, and the axial movement of the scraper is adjusted.

This utility model discloses a heat exchanger and an air conditioner. The heat exchanger includes: fins; heat exchange tubes, which are inserted into tube holes and through which refrigerant flows; the fin unit includes: a flat region arranged circumferentially along the tube hole; a corrugated region surrounding the flat region, with at least one central corrugation opposite to the flat region along the length of the fin; and a transition region obliquely connected between the flat region and the corrugated region; wherein the diameter of the flat region is D, and the sum of the wavelengths of at least one central corrugation is λ, and D and λ satisfy the relationship: 0.9D≤λ≤1.1D. This increases the contact area between the fins and the heat exchange tube, thereby improving the heat exchange capacity between the heat exchange tube and the fins. The small slope formed by the intersection of the flat region and the central corrugation prevents residual water formation and creates a continuous drainage channel, allowing condensate to drain smoothly during evaporation and improving the heat exchange capacity during evaporation.

The utility model discloses a compact vertical rotation high power neutron target and neutron generating system belong to neutron application field. Neutron target body of neutron target is set vertically, and the top of neutron target body is equipped with the pivot, is equipped with first connecting pipe and annular second connecting pipe in the pivot, and the second connecting pipe is located in the periphery of first connecting pipe, and is equipped with first cooling jacket and second cooling jacket along the ring in the neutron target body, and first connecting pipe is communicated with first cooling jacket, and second cooling jacket is communicated with second connecting pipe, and first cooling jacket and second cooling jacket are communicated, and first connecting pipe, first cooling jacket, second cooling jacket, second connecting pipe constitute cooling circuit, and is equipped with cooling working medium in cooling circuit. The shell cavity of neutron generating system is sequentially provided with ion source, isolation grid, extraction electrode, low energy transmission line, accelerator, medium energy transmission line, compact vertical rotation high power neutron target, moderator, collimating body outlet, and the inner wall of shell cavity at neutron target body is equipped with reflector.

The utility model discloses a biogas condensation dehumidification device based on a tubular heat exchange structure, which relates to the technical field of biogas dehumidification, and comprises a cylindrical shell, a plurality of heat exchange tubes are arranged in the cylindrical shell along the axial direction of the cylindrical shell, the inner wall of each heat exchange tube is provided with an anti-corrosion coating, and the outer wall of each heat exchange tube is provided with an anti-corrosion layer. The two ends of each heat exchange pipe are fixedly connected with the cylindrical shell through pipe plates, the two ends of the cylindrical shell are connected with an air inlet pipe and an air outlet pipe through reducer pipes respectively, the air inlet end of the air outlet pipe is fixedly connected with a folded plate type gas-liquid separator, and the large-diameter end of the reducer pipe connected with the air outlet pipe is connected with a drainage pipe. The two ends of the barrel wall of the barrel-shaped shell are connected with a water inlet pipe and a water outlet pipe respectively. The biogas condensation and dehumidification device based on the tubular heat exchange structure is good in condensation and dehumidification effect and long in service life, and the maintenance cost can be reduced.

This disclosure provides a diffuser section thermoelectric co-circulation system with exhaust gas energy recovery function, including a turbine exhaust diffuser section, a microchannel heat exchange network, an energy conversion circulation subsystem, a power output unit, and a co-control unit. The microchannel heat exchange network is integrated into the diffuser section wall and internal support structure to capture wall heat lost during flue gas kinetic energy conversion. The energy conversion circulation subsystem adopts an organic Rankine cycle or a supercritical carbon dioxide cycle, and the working medium enhances heat exchange with the flue gas through the microchannel heat exchange network to improve energy quality. The power output unit uses the mechanical energy generated by energy conversion to drive unit auxiliary equipment, achieving multi-source energy replenishment. The co-control unit enables coordinated operation of all components. This invention solves the problem of heat loss and waste on the diffuser section wall, improves energy utilization efficiency, reduces unit power consumption, has a simple structure, low modification cost, and strong adaptability, and has significant engineering application value and promotion prospects.

This invention discloses a multi-spiral, bidirectional water-cooled continuous casting roll, belonging to the field of continuous casting technology. It includes a roll core and a roll sleeve fitted around the roll core. Multiple spiral grooves are formed on the inner wall of the roll sleeve, creating cooling channels between the spiral grooves and the outer wall of the roll core. A first water inlet channel and a second water inlet channel are respectively provided at both ends of the roll core. A first water outlet channel is provided inside the roll core outside the second water inlet channel, and a second water outlet channel is provided inside the roll core outside the first water inlet channel. The two ends of some cooling channels are connected to the first water inlet channel and the first water outlet channel, respectively, while the two ends of the remaining cooling channels are connected to the second water inlet channel and the second water outlet channel, respectively. In this multi-spiral, bidirectional water-cooled continuous casting roll, the cooling water passes through the continuous casting roll in two independent channels simultaneously from two opposite directions, reducing the temperature difference between the two axial ends of the roll sleeve, ensuring the consistency of the continuous casting thickness, and improving the continuous casting quality.

The application discloses a kind of discrete series low distributed capacitance liquid cooling heat dissipation device and method, it belongs to electronic device heat dissipation technical field, heat dissipation device includes several heat dissipation units, the top of each heat dissipation unit is used to set power device, and two adjacent heat dissipation units are connected by cooling liquid pipeline;Each heat dissipation unit includes matrix and radiator, cooling liquid pipeline is through the inside of matrix, the top center of matrix is equipped with mounting hole, and mounting hole is equipped with radiator, and the lower half of radiator is inserted into the inside flow channel of cooling liquid pipeline, and the top of radiator is used to place power device.The application adopts discrete series heat dissipation unit structure, cooling liquid pipeline is through each unit matrix, and the lower half of radiator is inserted into the inside flow channel of pipeline, and each unit independently corresponds a power device.Solve the parasitic distributed capacitance problem caused by shared metal radiator, eliminate resonance loop, inhibit switching oscillation, reduce loss, ensure that heat dissipation is uniform and dynamic equalization, improve the stability and service life of high-voltage series module.

A novel plate heat exchanger absorption chiller belongs to the field of heat exchange equipment technology. It employs a two-stage low-temperature heat return system, a refrigerant plate heat exchanger, and a first-stage low-temperature heat return system connected in series and in parallel with the low-temperature heat exchanger. A dilute solution is heated by heat from the shell side and collected before entering the plate low-temperature regenerator. In the plate low-temperature regenerator, it is heated by high-temperature refrigerant vapor from the plate high-temperature regenerator, concentrating it into an intermediate concentration solution. This intermediate concentration solution is then pumped through an intermediate liquid pump, exchanging heat with the high-temperature heat exchanger and the parallel high-temperature heat return system, before entering the plate high-temperature regenerator. There, it is heated by external steam to generate refrigerant vapor, concentrating it into a high-concentration absorbent. Finally, it returns to the absorber to absorb refrigerant vapor generated from evaporation in the evaporator, diluting it into a dilute solution. This invention effectively reduces the overall solution filling volume and unit cost, significantly improves the unit's heat exchange efficiency, effectively stabilizes the liquid level, ensures stable unit operation, and enhances the unit's operational safety.

The invention discloses a hydrogen-fired gas turbine power generation system with nano-aerosol cooling, wherein a nanofluid containing nano solid particles is sprayed into the secondary air cooling structure of the hydrogen-fired gas turbine to form a nano-aerosol cooling medium, which enters the combustion chamber and the cooling channel of the turbine to complete cooling, then flows into the high-temperature combustion gas through the air film hole, passes through the combustion chamber, the gas turbine and the steam turbine, enters the condensation recovery device to obtain water and solid particles, and finally enters the nano-fluid preparation device to obtain the nano-fluid again. Aiming at the problem that the traditional air cooling technology is difficult to meet the cooling demand of the hydrogen-fired gas turbine, the invention adds nano-particles into the secondary cooling air to form a nano-aerosol cooling medium, and while not blocking the cooling channel and wearing the metal, the cooling performance of the nano-aerosol cooling medium is greatly improved by changing the thermophysical properties of the cooling medium, enhancing the turbulence of the working medium flow, and utilizing the phase change latent heat of the nano-particles, thereby improving the economy of the system.

The utility model discloses a cooling device and energy -conserving air conditioner, cooling device includes fan, condenser and energy -conserving module, and the condenser forms the cooling coil for the refrigerant flow, and the fan's air intake mouth is toward cooling coil, energy -conserving module includes water tank and water outlet pipe, and water outlet pipe and water tank intercommunication, and water outlet pipe is connected in condenser, and water outlet pipe is used for cooling cooling coil. Compared with prior art, the present application combines air cooling and water cooling two kinds of heat dissipation mode, and in water cooling heat dissipation system, liquid medium (water) can directly and cooling coil heat exchange, compared with air cooling heat dissipation, the heat transfer coefficient is higher when liquid and solid heat exchange, and the heat exchange effect is better, when the ambient temperature is high, two kinds of cooling mode work simultaneously, to reduce condensing temperature, reduce the equipment power consumption, realize energy -conserving effect. And when water cooling system breaks down, the device can still rely on air cooling system to continue working, greatly improve the practicality of the device.

This utility model discloses an anti-scaling preheater for a high COD wastewater MVR system, comprising: a U-shaped outer sleeve assembly, an H-shaped intermediate sleeve, and an inner sleeve. The H-shaped intermediate sleeve is concentrically fitted inside the U-shaped outer sleeve assembly, and the inner sleeve is concentrically fitted inside the H-shaped intermediate sleeve. The ends of the H-shaped intermediate sleeve inside the U-shaped outer sleeve assembly are all closed structures. An expansion joint is provided at one end of the U-shaped sleeve assembly, and an ultrasonic descaling device is provided on one side of the upper end of the U-shaped outer sleeve assembly. This utility model has the following advantages: the preheater is modularly designed, allowing multiple sets to be used in series, which is convenient for transportation. The annular material channel formed between the three sleeves makes the material a thin liquid layer, resulting in a high heat transfer coefficient. The hot and cold fluids flow completely in opposite directions, and ultrasonic descaling is achieved. Furthermore, the expansion joint on the U-shaped outer sleeve assembly, which facilitates heat exchange of the material, can effectively prevent damage to the outer sleeve due to thermal expansion and contraction.

The invention provides cooling equipment for a lubricating oil station, and belongs to the technical field of lubricating oil stations. Comprising an oil tank, one end of the top of the oil tank is fixedly connected with a driving pump, the surface of the oil tank is fixedly connected with a filter, one end of the filter is fixedly connected with a cooler, one end of the cooler is fixedly connected with an oil outlet pipe, and the interior of the cooler is fixedly connected with a heat exchange pipe; and one end of the top of the cooler is fixedly connected with a pretreatment separation assembly, and the pretreatment separation assembly is used for removing bubbles and oil foam. By arranging the pretreatment separation assembly and the cooling adjustment assembly, the purity of pretreated oil liquid is improved, interference of bubbles and impurities on the subsequent heat exchange process is avoided, scaling of the inner wall of a heat exchange pipe is reduced, a strong turbulent flow state is formed, the thickness of a water boundary layer is effectively reduced, heat resistance is reduced, and the temperature distribution of cooling water is more uniform; and the overall heat exchange coefficient is increased, dynamic descaling is achieved, and stable operation of cooling equipment is guaranteed.

This utility model provides a flow-turbulence device for heat exchange tubes in a fire-tube boiler, comprising: a sleeve assembly, a flow-turbulence component, and a tie rod. The sleeve assembly includes: a sleeve member and a first blade group. The sleeve member is sleeved over the first blade group. The first blade group includes: helical blades and a core member. The helical blades are spaced around the core member to define several helical air ducts within the sleeve member. The core member is fixed to the tie rod. The flow-turbulence component includes: a sleeve member and a second blade group. The sleeve member is sleeved over the second blade group. The second blade group has a similar structure to the first blade group to define several helical air ducts within the sleeve member. The sleeve assembly and the flow-turbulence component are connected in series via the tie rod, with the sleeve assembly and the flow-turbulence component spaced apart on the tie rod. This improves the heat transfer coefficient inside the heat exchange tubes of the fire-tube boiler and reduces the required heat exchange area of ​​the equipment.

The invention relates to a water vapor-organic working medium combined cycle power generation system which comprises a water vapor Rankine cycle and an organic working medium Rankine cycle, saturated steam generated by a boiler forms superheated steam through a superheater and drags a steam turbine generator to generate power, steam exhausted by a steam turbine is condensed in a condenser, and formed condensed water returns to the boiler through a water feeding pump and an economizer. A liquid organic working medium passes through an organic working medium booster pump, an organic working medium heater and a condenser to form organic working medium superheated steam, an organic working medium gas turbine generator set is dragged to generate electricity, and exhaust gas of an organic working medium gas turbine is cooled through the condenser to form the liquid organic working medium. And high-temperature flue gas generated in the fuel combustion or industrial production process is discharged after being cooled by the boiler body, the superheater, the economizer and the organic working medium heater, or is discharged from a chimney through purification equipment and an induced draft fan.

The utility model relates to carbon dioxide technical field, specifically is a kind of carbon dioxide waste gas heat recovery device, including heat storage box, one-way air pipe, activated carbon filter screen, two-way air pipe and exhaust pipe, the one end of heat storage box top is equipped with one-way air pipe, the side of one-way air pipe is equipped with two-way air pipe, one flange is fixed in the one end of two-way air pipe, two-way air pipe's other end is equipped with No. 2 flange A, activated carbon filter screen is installed between two-way air pipe and one-way air pipe;The carbon dioxide waste gas heat recovery device of the present application has the structure that impurities and particulate matter in waste gas are filtered before recovering heat, can prevent impurities and particulate matter from causing the blockage or damage of recovery component, and has the function of improving heat exchange efficiency using heat exchange component, so as to effectively improve the effect of heat recovery.

The embodiment of the present application provides an air conditioner, which comprises a heat exchange circulation flow path and a bubble generator. The heat exchange circulation flow path is provided with an indoor terminal and an outdoor heat exchanger. Heat exchange medium flows in the heat exchange circulation flow path, so that the heat exchange medium can flow between the indoor terminal and the outdoor heat exchanger for heat exchange. The outdoor heat exchanger further forms a heat exchange flow channel for refrigerant flow, so that the refrigerant and the heat exchange medium can exchange heat at the outdoor heat exchanger. The bubble generator is arranged in the heat exchange circulation flow path and located between the indoor terminal and the medium inlet end of the outdoor heat exchanger, so as to inject gas into the heat exchange medium flowing to the medium inlet end of the outdoor heat exchanger, so as to generate bubbles in the heat exchange medium. In the technical scheme of the present application, the disturbance effect and interface effect of the bubbles are utilized to significantly improve the turbulence degree and heat exchange coefficient of the heat exchange medium, so that the bubbles disturb the fluid in the outdoor heat exchanger, destroy the boundary layer, and improve the heat exchange coefficient and the heat exchange effect of the outdoor heat exchanger.

The application provides a gas heat exchanger, which comprises a metal pipe, a flange and a heat exchange assembly; the metal pipe is provided with a gas passing channel; the flange is used for connecting external gas pipelines; the heat exchange assembly comprises a water inlet pipe, a first collecting pipe, a plurality of branch water pipes, a second collecting pipe, a water outlet pipe and a plurality of heat exchange fins; the water inlet pipe, the first collecting pipe, the plurality of branch water pipes, the second collecting pipe and the water outlet pipe are sequentially communicated; the plurality of heat exchange fins are connected to the plurality of branch water pipes and perform heat exchange with the plurality of branch water pipes; the plurality of heat exchange fins are located in the gas passing channel of the metal pipe; gaps are arranged between the plurality of heat exchange fins, the gaps are used for allowing gas in the gas passing channel to pass through, the gas passes through the plurality of heat exchange fins and performs heat exchange with the plurality of heat exchange fins, the metal pipe is fully utilized, air flows through the gaps between the plurality of heat exchange fins, so that fin heat exchange is realized, the heat exchange coefficient is significantly higher than that of light pipe heat exchange, and the heat exchange effect of the gas heat exchanger is improved.