350results about "Evaporator regulation/control" patented technology

The invention relates to the technical field of gas separation, in particular to an amine recovery monitoring method and system for polyurethane synthesis tail gas. The method comprises the following steps: preliminarily separating to obtain a triethylamine solution; collecting parameter values of different parameters for distillation of the triethylamine solution; acquiring a parameter sequence in a preset time period; decomposing the parameter sequence to obtain a periodic sequence and a trend sequence; obtaining periodic saliency values of different parameters based on the periodic sequence, and obtaining a fluctuation consistency coefficient based on the trend sequence; a distillation interference coefficient is obtained after weighting; pure triethylamine is obtained based on the distillation interference coefficient control system; collecting attribute values of different attributes, constructing a change characteristic value sequence through differences between data values and predicted values of the attributes in the sliding window, and obtaining a dehydration steady-state index based on sequence similarity and vapor pressure differences; and recycling and monitoring of triethylamine are realized based on the dehydration steady-state index. According to the method, the dehydration efficiency of the triethylamine is improved, and the purity of the recovered triethylamine is further improved.

The invention discloses a novel belt dryer, and relates to the field of lithium ore purification. According to the scheme, the device comprises a drying trolley used for containing a mixed acid solution and heating and drying the mixed acid solution; the supporting and guiding assembly is fixed to the surface of the rack and used for guiding the drying trolley, and the drying trolley is in rolling connection with the supporting and guiding assembly; the driving assemblies are distributed at the two ends of the rack and used for driving the drying trolley to roll on the supporting and guiding assemblies; and the fixed heating assembly is fixed to the rack, and the fixed heating assembly is electrically connected with the drying trolley in a sliding mode and used for supplying power to the drying trolley in a sliding mode. The supporting and guiding assembly is fixed to the rack, the drying trolleys are connected to the supporting and guiding assembly in a rolling mode, the drying trolleys are powered through the sliding power supply assembly in a sliding mode, power supply of each drying trolley can be independently controlled, the drying temperature can be controlled, the polytetrafluoroethylene lining plates are fixed to the surfaces of the trolley bodies, and bonding of mixed acid solutions is prevented.

The present invention relates to the technical field of phosphoric acid solution concentration, and in particular to a system for comprehensive heat utilization in a phosphoric acid concentration device, comprising: an inlet and outlet heat exchanger; a raw acid preheater; a first-stage evaporation separator; a first-stage circulation pump; a first-stage evaporator; a gas-liquid separator; a second-stage evaporator; a second-stage evaporation separator; and a second-stage circulation pump, with defined connections between the various devices. The present invention utilizes an inlet and outlet heat exchanger to eliminate the need for circulating water for cooling finished phosphoric acid, making heat utilization in the concentration process more efficient and reasonable, thereby increasing the economic efficiency of the device. In the present invention, the various devices can effectively cooperate, effectively and reasonably utilizing the heat in the concentration process, reducing steam consumption and increasing the economic efficiency of the device.

The invention relates to the technical field of coffee cold extraction and concentration equipment, in particular to continuous coffee cold extraction and concentration equipment based on intelligent monitoring. The system comprises an intelligent preprocessing unit, an intelligent cold extraction control unit, a quality monitoring and intercepting unit and a concentration presetting unit, the intelligent preprocessing unit collects coffee bean parameters and moisture content data through the radio frequency identification technology, and the intelligent cold extraction control unit accurately controls cavity switching through a servo motor; the optimal extraction environment is automatically matched for coffee powder with different characteristics, parameters such as temperature, pressure and concentration in the processing process are analyzed in real time based on a machine learning algorithm, and extraction process parameters are dynamically adjusted. And the quality monitoring and intercepting unit performs multi-dimensional quality evaluation on the extraction liquid to ensure the stable quality of the final product. According to the invention, a whole-process intelligent control system from raw material processing to finished product output is constructed, and the quality consistency and the production efficiency of the coffee cold extraction concentrated product are remarkably improved.

The invention provides a falling-film evaporator based on a heat exchange tube enhanced heat transfer technology, and relates to the technical field of evaporation equipment, the falling-film evaporator comprises an evaporation tank body, a feed pipe is mounted at the top of the evaporation tank body, a liquid distribution disc is arranged in the evaporation tank body, a liquid distributor is arranged above the liquid distribution disc, the liquid distributor is communicated with the feed pipe, and a lower liquid disc is arranged at the bottom of the liquid distributor; a plurality of liquid discharging holes are formed in the liquid discharging disc, the liquid falling points of the liquid discharging holes and the adjacent pipe openings of the heat exchange pipes are arranged at equal intervals, the distance between each liquid discharging hole and the liquid distributing disc is the same, a floating ball is arranged in the liquid distributor, a switch disc is rotationally installed in the liquid distributor, a plurality of switch holes are formed in the switch disc, and a transmission mechanism is arranged on the side portion of the liquid distributor. The floating ball is in linkage with the switch disc through the transmission mechanism to control the switch hole and the liquid discharging holes to be communicated and blocked, liquid materials are evenly distributed, the liquid discharging holes are controlled to be opened and closed synchronously, the liquid materials are evenly distributed, and the film forming conditions in the heat exchange pipes at different positions are the same as much as possible.

The invention relates to the field of calcium gluconate evaporative crystallization equipment, in particular to a crystallizing tank for calcium gluconate crystallization production and a using method thereof.The crystallizing tank comprises an evaporative crystallization tank body, the evaporative crystallization tank body comprises a tank body, a stirring and uniform heating assembly is arranged on the inner edge of the tank body, and an adaptive adjusting assembly is installed on one side of the stirring and uniform heating assembly; a crystal transfer assembly is arranged at the middle part in the tank body; the stirring and uniform heating assembly is used for stirring the to-be-crystallized solution in the tank body to uniformly disperse heat; the adaptive adjusting assembly is used for adaptively adjusting the stirring and heat uniformizing assembly according to the evaporation progress; according to the crystal stirring device, the situation that the stirring work is easily affected in the later period that the crystals are continuously accumulated at the bottom in the tank body and become high can be avoided, and meanwhile the situation that the crystals are likely to collide with a stirring component along with flowing of a solution, and consequently the crystals are broken can be effectively reduced.

A system includes an evaporator having sensors and selectable operational parameters and a controller configured to receive data and determine operational configuration for the evaporator. Selectable parameters relate to system heating, liquid flow rate, air flow rate, and environmental data.

The present invention relates to the technical field of oyster taurine extraction, and discloses a concentration device for oyster taurine extraction, the concentration device comprises a support frame and three concentration tanks arranged on the support frame, a gas-liquid separation tank is fixed in the support frame, a controller is fixed in the support frame, a liquid conveying assembly is fixed below the concentration tanks, and the liquid conveying assembly is connected with the gas-liquid separation tank and the controller. A steam conveying assembly is fixed on the outer wall of the concentration tank, and the gear vacuum pump is fixed on the inner side of the support frame and is used for carrying out vacuum work on the concentration tank; one end of the vacuum distribution pipe is fixed on the gear vacuum pump; large negative pressure is generated in the evaporation pipe, and the boiling temperature of mother liquor in the evaporation pipe is reduced along with increase of the negative pressure, so that energy consumption in the evaporation process is reduced; the evaporation pipe is in a negative pressure state, and the negative pressure is beneficial to pushing mother liquor to flow, reducing the thickness of a liquid film in the heating pipe and ensuring that liquid is uniformly heated, so that the viscosity of the mother liquor and the evaporation concentration efficiency are improved.

The invention discloses an intelligent control method for a traditional Chinese medicine concentration process, and relates to the technical field of traditional Chinese medicine production and processing. Gas-phase and liquid-phase multi-dimensional data in the whole traditional Chinese medicine concentration process are synchronously acquired and structurally processed, and the activity degree of volatile gas behaviors and the volatilization trend of aromatic substances are quantitatively analyzed; according to the method, heat-sensitive aromatic components can be effectively reserved, meanwhile, component proportion imbalance caused by premature or delayed release is avoided, the drug effect consistency of a finished product is improved, a comprehensive convergence score SCF is introduced, end point judgment better conforms to the actual concentration state change, the batch-to-batch difference is reduced, and meanwhile, the product quality is improved. Early warning and operation adjustment can be automatically triggered when a liquid medicine concentration system does not reach a stable convergence state, so that excessive heating or insufficient concentration is avoided, and the intelligence, refinement and self-adaptive capabilities of a traditional Chinese medicine concentration process are integrally improved.

The invention relates to the technical field of seasoning powder drying, in particular to seasoning powder spray drying equipment and system. According to the method, during real-time operation of the spray drying equipment, the theoretical production efficiency and the theoretical efficiency error coefficient at each moment are obtained; the actual production efficiency at each moment is obtained by combining the weight data distribution of the residue filtering net, the inclined plate and the driving discharging assembly at different moments in the neighborhood range; heating power data is adjusted, and according to the temperature data and humidity data of the spray drying chamber and the anti-blocking actuating assembly at the real time after heating and power adjustment and the vibration disorder degree of the assembly, the influence coefficient of the temperature data on production at the real time is obtained; combining to obtain an influence coefficient of the temperature data on the component at the real-time moment; vibration correction data are obtained, and cooperative control is conducted on the anti-blocking actuating assembly. By accurately obtaining the vibration data of the anti-blocking actuating assembly during operation, the accuracy of cooperative control is ensured, and the drying effect is improved.

A water evaporation system comprising a gas turbine engine is disclosed. The exhaust of the gas turbine engine directly impinges on wastewater to entrain and evaporate at least a portion of the wastewater.

The apparatus may include a memory storing instructions and a processor configured to execute the instructions to determine an initial mass of the sample, distill the sample to at least a thermal destruction temperature, record vapor temperature values, liquid temperature values, and vapor pressure values ​​associated with the sample at a set of time points during the distillation, and determine a residual mass of the sample. The processor may be further configured to generate a pressure curve based on the vapor pressure values, calculate a summary integral surface of the generated pressure curve, and generate a distillation curve relating the vapor temperature values ​​and liquid temperature values ​​to a mass percentage of the sample evaporated based on the calculated summary integral surface, the initial mass of the sample, and the residual mass of the sample.

The application discloses a continuous evaporator and a working method thereof, relates to the technical field of evaporators, and comprises a primary evaporator, a body, an auxiliary component and a matching component, the primary evaporator is communicated with the body through a conveying pipe, a heater is arranged on the primary evaporator, a fixed plate is fixedly connected to the inner wall of the body, a base is fixedly connected to the bottom surface of the body, the auxiliary component is arranged in the body and comprises four auxiliary blocks, intermittent vibration of the four auxiliary blocks is generated through the arrangement of the auxiliary component, the matching component is drivingly connected to the auxiliary component and comprises a displacement plate slidingly connected to the inner wall of the body, the displacement plate is reciprocatingly displaced in the vertical direction and has the features of slow upward displacement and rapid downward displacement through the arrangement of the matching component, and the auxiliary component comprises a main shaft; through mutual cooperation between the above-mentioned structures, the application has the effects of improving overall evaporation efficiency, shortening the time required for boiling of the secondary evaporator and reducing the energy consumption demand.

The invention relates to the technical field of evaporators, in particular to a falling film evaporator and a distributor thereof, and the distributor of the falling film evaporator comprises an evaporation pipe arranged on the falling film evaporator. Comprising a sleeve, an air inlet pipe, a liquid spiral feeding head, an air guide pipe and a wind wheel, wherein the sleeve is arranged at the upper end of an evaporation pipe and is used for forming an overflow port; the air inlet pipe and the evaporation pipe are coaxially arranged; the liquid spiral feeding head is rotationally mounted in the evaporation pipe; the air guiding pipe is arranged outside the air guiding pipe, an air guiding opening is formed in the upper end of the air guiding pipe, and the air guiding structure is rotationally connected into the liquid spiral feeding head, driven by inlet steam to rotate and forms suction force at the air guiding opening. The falling film evaporator has the advantage of ensuring the falling film evaporation effect.

The invention relates to the technical field of traditional Chinese medicine extraction, and discloses separation and purification equipment for traditional Chinese medicine and a separation method.The separation and purification equipment comprises a boiling pot, the bottom of the boiling pot is connected with a liquid medicine transfer pipe, the other end of the liquid medicine transfer pipe is connected with an evaporation tank, and a first switch valve is arranged on the liquid medicine transfer pipe; a discharging hopper is arranged right behind the boiling pot, a compression assembly is fixedly installed at the bottom end of the discharging hopper, the outer side of the compression assembly is sleeved with an air blowing assembly, the air blowing assembly is slidably connected into the flow guide assembly, and a steam discharging assembly is connected between the right side of the air blowing assembly and the top of the evaporation tank. When the traditional Chinese medicine moves in the residue discharging pipe, the extrusion force of the spiral blades is gradually increased, water in the traditional Chinese medicine is extruded out, the water penetrates through the filtering holes to enter the sleeve, then the inclined hopper is used for guiding, and the water extruded out of the traditional Chinese medicine penetrates through the liquid injection pipe to enter the evaporation tank; therefore, the aim of squeezing the decocted traditional Chinese medicine and avoiding waste of a large amount of liquid medicine is achieved.

A device (1) for the production and supply of sterile water comprises an inlet (2) for process water; a recuperator (3) for preheating process water by means of countercurrently flowing sterile water and for cooling the sterile water; a heating circuit downstream of the recuperator with pump (4), heater (6) for heating preheated process water and a holding section (7) for keeping heated process water hot for the production of sterile water; a temperature sensor (8) for measuring the current temperature of the sterile water leaving the holding section; a flow control valve (9) downstream of the temperature sensor; and a bypass (10) provided between the flow control valve and the heater.The flow control valve is configured to maintain a constant volume flow in the heating circuit, wherein the recuperator is configured to cool the sterile water of the first partial volume flow when a first partial volume flow of sterile water is drawn from the heating circuit, and wherein the bypass is configured to return a second partial volume flow of sterile water, corresponding to the difference between the volume flow and the first partial volume flow, to the heating circuit. The invention further relates to a method for operating the device.

The application relates to a concentration device for methoxyacetic acid preparation and relates to the technical field of methoxyacetic acid preparation, which comprises a concentration barrel, a spraying assembly, a collecting assembly, an evaporation assembly and a detection assembly. One side top of the concentration barrel is communicated with a liquid inlet pipe, the spraying assembly is arranged in the concentration barrel, the liquid inlet pipe is communicated with the spraying assembly, and the spraying assembly is used for spraying a solution needing to be concentrated into the concentration barrel. The collecting assembly is arranged at the bottom of the concentration barrel and is used for collecting the concentrated solution. A lead screw is fixedly arranged at the center of the bottom in the concentration barrel, the lead screw is a reciprocating lead screw, the lead screw is vertically arranged and coaxially arranged with the concentration barrel. A rotating block is spirally transmission-connected with the lead screw in the vertical direction. The evaporation assembly is used for contacting steam with the sprayed solution, so that the solvent in the solution is evaporated together. The detection assembly can assist in detecting the concentrated solution. The concentration device for methoxyacetic acid preparation can realize an efficient evaporation and concentration process.

The invention discloses a hydrolysate deacidification-dehydration coupling process and a byproduct recovery method, and belongs to the technical field of hydrolysate treatment. The method comprises the following steps: pretreating a hydrolysate raw material through two-stage filtration; adding the pretreated hydrolysate, a deacidification agent and a dehydration auxiliary agent into a coupling reaction device, and synchronously carrying out deacidification-dehydration reaction under the conditions of 60-120 DEG C and 0.1-0.5 MPa; after the reaction, separating to obtain a deacidification and dehydration product and a mixed solid phase; and dissolving and crystallizing the mixed solid phase to recover high-purity byproducts. The deacidification and dehydration synergistic interaction is achieved, the acidity reduction rate is larger than or equal to 85%, the water content is smaller than or equal to 5%, and the process time consumption is shortened by 28.6%; the byproduct purity is not less than 90%, and the recovery rate is not less than 80 A tail gas treatment system is additionally arranged to ensure that environmental protection reaches the standard. The process is suitable for biomass, polysaccharide and protein hydrolysate treatment, has the advantages of high efficiency, good resource utilization rate and the like, and provides an efficient solution for hydrolysate industrial treatment.

A device may include a memory storing instructions and a processor configured to execute the instructions to determine an initial mass of a sample; distill the sample up to at least a thermal destruction temperature; record, at a set of time points during the distilling, vapor temperature values, liquid temperature values, and vapor pressure values associated with the sample; and determine a residual mass of the sample. The processor may be further configured to generate a pressure curve based on the vapor pressure values; calculate a summary integral surface for the generated pressure curve; and generate a distillation curve that relates the vapor temperature values and the liquid temperature values to mass percentage of the sample that has evaporated, based on the calculated summary integral surface, the initial mass of the sample, and the residual mass of the sample.

The invention discloses pure honey candy processing equipment and a use method thereof, and relates to the technical field of candy processing. The stirring structure comprises a barrel, a plurality of stirring rods and a driving part, the barrel is of a hollow structure and is vertically arranged in the tank body, the bottom of the barrel is rotationally connected with the bottom wall of the tank body, the barrel and the tank body are coaxially arranged, the stirring rods are arranged in the circumferential direction of the barrel, the driving part is provided with an output end, and the output end of the driving part is connected with the top end of the barrel; the driving part is used for driving the barrel to rotate; the temperature control structure comprises a temperature sensor, a first heat exchange assembly, a second heat exchange assembly and a controller, the temperature sensor is arranged in the tank body, the first heat exchange assembly is arranged on the side wall of the tank body, the second heat exchange assembly is arranged in the cylinder body, and the controller is electrically connected with the temperature sensor, the two heat exchange assemblies and the driving part. The method has the advantages that nutritional ingredients and the original color of the honey can be reserved to the greatest extent.

The invention belongs to the technical field of purification processes, and particularly relates to an organic milk compounding system rich in DHA algae oil and an efficient purification process thereof.The purification process comprises the following steps that S1, algae oil and organic milk are mixed in proportion, preliminary emulsification is conducted under the constant-temperature condition, and a preliminary mixed emulsion is obtained; s2, carrying out high-pressure homogenization treatment on the primarily mixed emulsion to form a stable emulsion; s3, a modified adsorbent is added into the stable emulsion for impurity adsorption, and purified emulsion is obtained; s4, sequentially performing low-temperature concentration and membrane separation treatment on the purified emulsion to obtain high-purity algae oil and organic milk compound liquid; s5, the high-purity algae oil and organic milk compound liquid is sequentially subjected to filling and low-temperature sterilization. After heating is transferred to the temporary storage tank, the composite tank body can focus on maintaining a stable high-pressure homogenizing condition, and interference of temperature change on a high-pressure environment is avoided.

A distillation device may comprise a source fluid input and an evaporator in fluid communication therewith. The device may further comprise a compressor having an impeller coupled to a motor, the compressor having a low pressure inlet for vapor from the evaporator and a high pressure outlet for compressed vapor. The device may further comprise at least one temperature sensor configured to monitor temperature of vapor in the inlet and a condenser in heat transfer relationship with exterior surfaces of the evaporator and in fluid communication with the compressor outlet. The device may further comprise a controller configured to govern rotation speed of the impeller with an impeller motor command based on a calibrated motor speed for the distillation device. The controller may be configured to determine an adjusted motor speed for a next use of the device and overwrite the calibrated motor speed with the adjusted motor speed.

The present application relates to a kind of modular horizontal evaporator, including shell, end plate being arranged in the two sides of shell and being arranged in the upper portion of shell feed inlet, steam inlet and being arranged in the lower portion of shell discharge port, condensate outlet;It also includes the core module being arranged in shell, core module includes core frame, drive shaft, multiple scrapers and multiple heat exchange plates, multiple heat exchange plates equidistantly fixed on core frame, multiple scrapers equidistantly fixed on drive shaft and are driven by drive shaft rotation, multiple scrapers are evenly distributed between multiple heat exchange plates;Drive shaft is rotationally arranged on core frame and keeps the relative position of core frame unchanged, and core module is fixed on end plate.The present application can realize the accurate control of the cooperation gap of scraper and heat exchange plate by the modular core setting, can realize the effect of anti-deposition, smooth discharge by the setting of double-blade scraper, and the present application also has the advantages of high heat exchange efficiency, convenient installation and maintenance.

The invention provides a three-time air supply methanol-to-hydrogen combustion evaporator which comprises a heat exchanger, a combustion evaporator body, a combustion chamber and a three-time air supply device, the air outlet end of the heat exchanger communicates with the three-time air supply device, and the three-time air supply device is arranged at the top of the combustion chamber. The tertiary air supply device blows flames generated during combustion of the combustion chamber to the combustion evaporator, the heat exchanger is used for preheating normal-temperature air, and the tertiary air supply device supplies air to the combustion chamber. The three-time air supply design is adopted, so that combustion is more complete, the flame temperature distribution is uniform, the heat efficiency is greatly improved, and fuel waste is reduced. Through gas preheating and waste heat recovery, external energy input is reduced, the operation cost of the system is remarkably reduced, and the energy-saving and environment-friendly trend is met. The high-temperature gas guide pipe guides waste heat back to the heat exchanger, heat energy recycling is achieved, the overall heat energy utilization rate is increased, and emission loss is reduced.

Distillation device by direct heating at the heart of the liquid to be distilled, energy-efficient and with low GHG emissions. Double distillation of alcohols is very energy-intensive. The subject of the invention is a distillation heating device by direct heating for a boiler 10 containing a liquid 23 comprising, depending on the size and use of the boiler 10, a certain number of tappings 26 made through the walls of the boiler and distributed around its periphery and on several horizontal levels, for example between levels 30 and 40, 40 and 40, 50 and the bottom of the boiler, electric immersion heaters, for example 31.1, 31.2, 41.1, 41.2, 51.1, 51.2, mounted in each tapping 26 and electrically connected to a power and control cabinet controlling the individual electrical supply of each immersion heater according to a defined heating program. Figure to be published for the abstract: [Fig 3]

The present application relates to the technical field of urea production, and is a urea system flushing evaporation flushing method and device. The urea system flushing evaporation flushing method pre-raises the temperature of the evaporation system before flushing, prevents excessive crystalline substances from blocking the pipeline by intermittently flushing the relevant parts of the second-stage evaporation separator, the top gas phase pipeline of the second-stage evaporation separator, the first-stage evaporation separator and the top gas phase pipeline of the first-stage evaporation separator, ensures that the urea evaporation system runs more stably, and recovers ammonia and other substances in the gas phase separated by evaporation after condensation to reduce the emission of pollutants. The present application has a reasonable and compact structure, a simple process, simple operation, low equipment cost, conforms to the development concept of environmental protection and resource utilization, not only makes the urea product meet the national standard GB2440-2017, but also makes the evaporation system run more stably.

The invention relates to the technical field of biological engineering, and discloses full-automatic negative pressure evaporation concentration equipment which comprises a frame, a reaction kettle is fixedly connected to the bottom end in the frame, a trapezoidal pipe is fixedly connected to the right side of the reaction kettle, a material pipe is fixedly connected to the right side of the trapezoidal pipe, and a liquid level meter is installed in the reaction kettle. A heating medium circulating assembly is installed at the bottom end in the frame and communicates with the reaction kettle through a pipeline, a motor is fixedly connected to the top end of the reaction kettle, a stirring rod is fixedly connected to the driving end of the motor, a valve control assembly is installed on the front side of the material pipe, and a pull rope is arranged on the rear side of the valve control assembly. And the other end of the pull rope is fixedly connected with a rubber plate sliding on the inner wall of the trapezoidal pipe. According to the invention, the rubber plate slides in the trapezoidal pipe to seal the small opening, block the passage between the left side of the material pipe and the reaction kettle, prevent residual wastewater from flowing in inertially, ensure that the amount of water entering the kettle is consistent with the preset amount, and avoid the influence of water amount deviation on evaporation efficiency, product concentration stability and batch uniformity.

An abatement system for pyrophoric chemicals where the materials are captured or controlled by a hazard volume and fed to a vaporizer in an oxygen deprived environment. Materials are heated until vaporized while mixed with nitrogen. The mixture exits the system through a reaction column. The system is monitored by oxygen sensors, smoke detectors and temperature sensors.

To provide an improved vapor compression distillation system.SOLUTION: A distillation device comprises a source fluid input and an evaporator 6060 in fluid communication therewith. The device further comprises a compressor 6064 having an impeller coupled to a motor, the compressor having a low-pressure inlet for vapor from the evaporator and a high-pressure outlet for compressed vapor. The device further comprises a temperature sensor 6066 configured to monitor the temperature of the vapor in the inlet, and a condenser 6076 in heat transfer relationship with multiple exterior surfaces of the evaporator and in fluid communication with the compressor outlet. The device further comprises a controller 6034 configured to adjust a rotation speed of the impeller with an impeller motor command based on a calibrated motor speed for the distillation device. The controller is configured to determine an adjusted motor speed for a next use of the device and overwrite the calibrated motor speed with the adjusted motor speed.SELECTED DRAWING: Figure 2

The present invention provides a falling film evaporator based on the heat exchange tube enhanced heat transfer technology, which relates to the technical field of evaporation equipment, including an evaporation tank body, a feed pipe installed on the top of the evaporation tank body, a liquid separation plate provided inside the evaporation tank body, a liquid separator provided above the liquid separation plate, the liquid separator is connected to the feed pipe, a lower liquid plate is provided at the bottom of the liquid separator, a plurality of lower liquid holes are provided on the lower liquid plate, the liquid falling points of the lower liquid holes are arranged at equal intervals with the pipe openings of the adjacent heat exchange tubes, and the distance between each lower liquid hole and the liquid separation plate is the same, a float is provided in the liquid separator, a switch plate is rotatably installed in the liquid separator, a plurality of switch holes are opened on the switch plate, and a transmission mechanism is provided on the side of the liquid separator, the float is linked with the switch plate through the transmission mechanism, controls the flow resistance of the switch holes and the lower liquid holes, realizes uniform distribution of liquid and material, controls the synchronous opening and closing of the lower liquid holes, and realizes uniform distribution of liquid and material. This scheme realizes uniform distribution of liquid and material, so that the film forming conditions in the heat exchange tubes at different positions are as similar as possible.