56results 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 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.

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 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 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 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.

The utility model provides a kind of high-efficiency air cooler, including main body, the lower four corners of main body are evenly installed with support foot, the inner wall of main body is installed with two partitions, the inside space of main body is divided into multiple chambers by two partitions, the side of each chamber is communicated and is provided with fan. The utility model is provided with cooling mechanism in the inside of each chamber, i. e. by being provided with guide vane to the wind that enters is guided, so that wind is more concentrated, after cooling and cooling down by cooling pipe, blow to multiple trapezoidal fins, trapezoidal fin can increase the turbulence of air flow, improve heat transfer coefficient;Wavy fin can extend the flow path of air between fin, increase heat exchange time, finally after the heat exchange of heat exchange pipe, greatly improve the heat exchange efficiency, satisfy greater cooling demand, and do not need to add fan and other equipment, reduce energy consumption.

The utility model provides a printing roller cooling device, which belongs to the field of printing and comprises a first electromagnetic valve, a cold water pipe, a first cooling pipeline, a first nozzle and a second cooling pipeline, the cold water pipe is provided with the first electromagnetic valve to realize interval spraying, and two ends of the first cooling pipeline are respectively connected with the cold water pipe and the second cooling pipeline. A first nozzle is arranged at the position, connected with the cold water pipe, of the first cooling pipeline to conduct pulse cooling, the second cooling pipeline is an axial straight-through flow channel, and cooling water in the second cooling pipeline can flow in an unpowered mode. By optimizing the design of a flow channel in the printing roller, higher heat exchange efficiency is achieved, and therefore the requirement for a cooling system is lowered.

The utility model discloses an aniline recovery tower reboiler, which relates to the technical field of chemical equipment, and comprises a barrel, an upper seal head, a lower seal head, a circulating liquid inlet, a first anti-scour baffle plate, a second anti-scour baffle plate, a first tube plate, a second tube plate, a plurality of baffle plates, a plurality of heat exchange tubes and at least four solid pull rods, the first anti-scour baffle is arranged close to the steam inlet, and the second anti-scour baffle is arranged close to the circulating liquid inlet; one end of each heat exchange tube penetrates through the first tube plate and is communicated with the interior of the upper sealing head, the other end of each heat exchange tube penetrates through the second tube plate and is communicated with the interior of the lower sealing head, the multiple baffle plates are transversely and alternately arranged in the barrel, and the top ends of the solid pull rods are connected with the baffle plates, close to the first tube plate, in the barrel. The bottom ends of the solid pull rods are connected with the second tube plate, and the solid pull rods penetrate through all the baffle plates on the path. Through the arrangement of the cross baffle plates, the solid pull rods for fixing and the impingement baffle, the defects of traditional equipment can be effectively overcome.

This invention provides a mold for simulating the tire vulcanization process, its preparation method, and its application. The mold is made of nylon fiber-reinforced phenolic resin. This invention uses phenolic resin as the matrix and nylon fiber as the reinforcement. Phenolic resin has excellent heat resistance and thermal insulation properties, but it is relatively brittle and its heat transfer coefficient is generally lower than that of rubber. Therefore, this invention uses nylon fiber, which has a higher heat transfer coefficient than rubber and good toughness, high strength, and strong compressive strength, to composite with phenolic resin. This makes the prepared composite material more closely resemble the heat transfer coefficient of rubber. The resulting mold has two-dimensional, double-sided heat transfer characteristics, ensuring that it more closely matches the actual vulcanization heat transfer process of the tire, greatly improving the accuracy of the mold in predicting tire vulcanization time.

The application discloses an online adjusting device for micro-flow ammonia for denitration, which comprises intermittent ammonia supply units, vaporization units, buffer units and vapor-gas mixing units which are sequentially communicated; the intermittent ammonia supply units are communicated with liquid ammonia delivery pipes; the vapor-gas mixing units are communicated with ammonia injection lattices; the intermittent ammonia supply units are used for providing quantitative liquid ammonia supply; the vaporization units are used for vaporizing liquid ammonia; the vapor-gas mixing units comprise primary mixers and secondary mixers; the primary mixers are used for ammonia gas dilution; and the secondary mixers are used for online adjustment; adjusting valves are arranged between two adjacent units; and each adjusting valve is electrically connected with a DCS control system. The application combines intermittent ammonia supply and two-stage mixing, guarantees micro adjustment of ammonia flow under the condition of small ammonia consumption, realizes ultra-low emission transformation of industrial flue gas with low background nitrogen oxides, and has great engineering practical value.

The utility model discloses a kind of flame-retardant cable material production cooling water tank, it is related to flame-retardant cable material production cooling water tank technical field, including water tank main body, the fan is arranged on water tank main body upper portion, the fan below in the upper portion of water tank main body interior is arranged with wind collecting hood, spiral cooling fin is arranged on the surface of wind collecting hood in water tank main body interior, wind collecting hood surface is evenly provided with air hole, the cooling pipeline of spiral is set in the bottom end of water tank main body interior, motor is set in one end of cooling pipeline, the output shaft of motor is connected with the rotating rod of being worn in cooling pipeline interior, the surface of rotating rod is provided with helical blade. The utility model design structure is reasonable, it can be closely combined by air cooling and water cooling system, form strong radiating resultant force, the high-speed airflow generated by fan, with the help of wind collecting hood and spiral cooling fin, rapidly take away a large amount of heat;At the same time, cooling liquid in cooling pipeline circulates ceaselessly, heat is continuously absorbed by pipe wall, realizes the rapid transfer of heat.

The application discloses a single-phase immersed fluorine-containing cooling liquid, wherein the fluorine-containing cooling liquid comprises hexafluoropropylene trimer and hydrofluoroolefin, the molecular formula of the hexafluoropropylene trimer is C9F 18 , the molecular formula of the hydrofluoroolefin is C9H2F 16 , the fluorine-containing cooling liquid has good electric insulation performance and high heat transfer coefficient; and the fluorine-containing cooling liquid has good compatibility with currently used materials and equipment, and can be used by replacing the fluid without replacing the materials and equipment.

This invention discloses a coupled finned tube gas-fired vacuum phase change hot water boiler, which adopts a horizontal arrangement. The burner outlet is connected to the sealed furnace space. The membrane water-cooled wall evaporative heat exchange tube bundle is located before and after the sealed furnace space, and the coupled finned tube evaporative heat exchange tube bundle is located on both sides of the sealed furnace space. The upper steam-water chamber and the lower water chamber are located above and below the sealed furnace space, respectively. The coupled finned tube flue gas condenser heat exchange tube bundle and the chimney are arranged along the flue gas flow direction at the rear of the furnace. The coupled finned tube evaporative heat exchange tube bundle and the coupled finned tube flue gas condenser heat exchange tube bundle adopt slit heat exchange tube bundle. The slit microchannel laminar flow enhances heat transfer, significantly improving the heat transfer coefficient. It achieves compact structure, simplified process, short flow, and low resistance enhanced heat transfer, which not only reduces carbon emissions from raw materials and manufacturing processes, but more importantly, directly reduces operating carbon emissions and operating costs caused by power consumption, truly achieving the lowest carbon emissions throughout the product supply chain.

The invention relates to the technical field of ice making equipment, and provides an evaporator assembly and ice making equipment. The evaporator assembly comprises a first ice-making box body and a second ice-making box body which are both provided with ice grids, the back face of the first ice-making box body is fixedly connected with the back face of the second ice-making box body, and an evaporation cavity used for containing refrigerants is formed between the first ice-making box body and the second ice-making box body; at least one of the first ice-making box body and the second ice-making box body is provided with a refrigerant inlet and a refrigerant outlet which are communicated with the evaporation cavity, and the positions of the refrigerant inlet and the refrigerant outlet are configured to be used for filling the evaporation cavity with a refrigerant so as to perform heat exchange on the first ice-making box body and the second ice-making box body at the same time. The two ice-making box bodies are arranged in a back-to-back mode and share one evaporation cavity, one evaporator shell and part of pipelines are omitted, the overall size and occupied space of the structure are reduced, and the reliability of long-term operation of the structure is improved.

The application discloses a photovoltaic light heat assembly, which comprises a solar cell assembly and a flow channel box, the flow channel box is fixed below the solar cell assembly, the flow channel box is respectively provided with a flow channel inlet and a flow channel outlet on two sides, a plurality of baffles are arranged in the flow channel box, the baffles are arranged at intervals from the flow channel inlet to the flow channel outlet, a plurality of baffle strips are arranged below the baffles, the baffle strips are arranged at intervals along the extension direction of the baffles, the baffle strips are fixedly connected with the bottom surface of the flow channel box, and the baffles and the bottom surface of the flow channel box form gaps through the baffle strips. The photovoltaic light heat assembly has high temperature uniformity, the heat exchange effect is more uniform, and the temperature uniformity is improved.