4279results about "Liquid degasification" patented technology

A coulter assembly for collecting soil samples from an agricultural field in one embodiment comprises an annular collection blade configured for penetrating soil to capture a sample, an annular cam ring configured for stationary mounting to a frame of an agricultural vehicle and comprising a cam track, a blade hub coupled to the blade for rotatably supporting the annular collection blade from the annular cam ring, and a movable sample collector mounted to the annular collection blade. The moveable sample collector is configured and operable for extracting a soil sample as the annular collection blade is rotated through the soil. The moveable sample collector in one embodiment comprises a piston mechanism including a cylinder and rod movably disposed therein which actuated by the annular cam ring to alternatingly open and close a collection end of the cylinder as the annular collection blade rotates through the soil.

The present application provides a molten salt heat storage and release unit and a deep peak regulation system for a boiler unit, the molten salt heat storage and release unit comprising a molten salt storage assembly, a heat exchange energy storage assembly, and a heat exchange energy release assembly, wherein the molten salt storage assembly comprises a high-temperature molten salt storage tank and a low-temperature molten salt storage tank; the heat exchange energy storage assembly is connected to the high-temperature molten salt storage tank and the low-temperature molten salt storage tank, and comprises a flue gas heat exchange device and a steam heat exchange device, and molten salt in the low-temperature molten salt storage tank sequentially passes through the flue gas heat exchange device and the steam heat exchange device and then flows into the high-temperature molten salt storage tank; and the heat exchange energy release assembly is connected to the high-temperature molten salt storage tank and the low-temperature molten salt storage tank, and comprises a pulverized coal heating device and a feedwater heating device, and molten salt in the high-temperature molten salt storage tank releases energy through the pulverized coal heating device and / or the feedwater heating device and then flows into the low-temperature molten salt storage tank. The present application provides a molten salt heat storage and release unit and a deep peak regulation system for a boiler unit with flexible peak regulation and high energy efficiency.

To provide an ultrasonic transmission medium circulation system of an ultrasound treatment head, and a method therefor.SOLUTION: An ultrasonic transmission medium circulation system of an ultrasound treatment head and a method therefor are provided. In the system and the method therefor according to an embodiment, the supply, discharge and circulation of an ultrasonic transmission medium with respect to the ultrasound treatment head are all possible by means of a single pump. Further, a single system is driven by changing a passage through selective opening and closing of valves in the system according to a material of a membrane, so that there is no need to drive another system separated by the material of the membrane.SELECTED DRAWING: Figure 1

The invention relates to the technical field of stirring tanks, and particularly discloses a chemical stirring tank which comprises a base and a stirring tank fixedly mounted at the top of the base and composed of a lower tank body and an upper tank body, and a driving motor is fixedly mounted at the top of the upper tank body; a stirring preparation defoaming unit, a material pressing type intermittent dispersion discharging unit and a multi-step collision centrifugal defoaming unit are arranged in the stirring tank, through the multi-step collision design, an adhesive continuously collides with a plurality of collision steps from top to bottom under the continuous action of centrifugal force, large and small bubbles in the adhesive can be rapidly broken through continuous collision, and the adhesive can be uniformly dispersed. The continuous collision defoaming effect is further achieved, even small bubbles or bubbles which are not prone to being broken due to the fact that a surfactant is contained can be broken in the continuous collision process, the influence of the size and viscosity of the bubbles in the adhesive and the stability of the bubbles on the defoaming effect is avoided, and the defoaming effect is greatly improved.

The present invention relates to the technical field of boiler drain treatment, and specifically to a headless full thermal deaerator for collecting boiler drain, comprising: a deaerator, a connecting shell and a base, the connecting shell is located outside the deaerator, the base is located at the bottom of the deaerator and the connecting shell, the end of the deaerator away from the deaerator is fixedly connected with a drain inlet pipe, the drain inlet pipe extends to the inside of the deaerator and is fixedly connected with a drain dispersion head, the inside of the drain inlet pipe and one end close to the drain dispersion head is provided with a guide component, the outside of the drain dispersion head is provided with a drain water separation tray, the end of the drain water separation tray away from the drain dispersion head is provided with a softened water pipeline, the end of the connecting shell close to the deaerator is fixedly connected with a sealing component, the connecting shell is connected to the deaerator through the connecting component, and a buffer component is provided inside the base. The beneficial effects of the present invention are: boiler drain is recycled, the deoxidizer and steam are mixed, the steam consumption for deoxidation is reduced, the thermal efficiency of the boiler is improved, and high efficiency and energy saving are achieved.

A thermal battery energy storage system coupled with a coal-fired generator set and its operation method, including a coal-fired generator set system and a heat pump energy storage system coupled with molten salt heat storage; the coal-fired generator set system includes a high-pressure cylinder, a medium-pressure cylinder, a low-pressure cylinder, a generator, a condenser, a condensate pump, a low-pressure heater, a deaerator, a feedwater pump, a high-pressure heater, and a boiler; the invention uses the exhaust steam of the low-pressure cylinder as a heat source to preheat the circulating working fluid in the thermal battery heat pump system, so that the total efficiency and COP of the system are increased, and the exhaust steam recovery and utilization capacity is enhanced. At the same time, the output load of the coal-fired unit is reduced, the peak-shaving range of the unit is expanded, and the peak-shaving depth is increased.

The invention discloses a gas-liquid separation and washing integrated device and method for hydrogen production through water electrolysis. The device comprises a hydrogen side gas-liquid separation unit, a hydrogen side washing unit, an oxygen side gas-liquid separation unit, an oxygen side washing unit and a pressure balance unit. The hydrogen side gas-liquid separation unit is coupled with the hydrogen side washing unit, the oxygen side gas-liquid separation unit is coupled with the oxygen side washing unit, and the hydrogen side gas-liquid separation unit is coupled with the oxygen side gas-liquid separation unit through the pressure balance unit. According to the invention, the gas-liquid separation and washing processes of the hydrogen-oxygen electrolyte are integrated in one device, so that the number of the whole equipment of the process for producing hydrogen by electrolyzing water is reduced, the complexity of the whole process is reduced, and the compactness of the process equipment is improved, thereby improving the whole operation efficiency of the process. And hydrogen and oxygen are separated at the same time and collected separately, so that the process requirements and safety specifications of gas-liquid separation of the hydrogen-oxygen electrolyte in a water electrolysis hydrogen production process are well met, and the operation efficiency of the whole hydrogen production process is improved.

The embodiment of the invention provides an energy storage peak regulation system and method coupling waste heat recovery and water body heat storage. The system comprises a thermal power generation subsystem, a circulating water waste heat utilization subsystem, a water body heat storage subsystem and a heating subsystem. By recycling waste heat of circulating water, the heat efficiency of the unit can be improved under the same combined heat and power generation capacity, the coal consumption rate is reduced, and energy-saving and carbon-reducing transformation is assisted to be achieved. After the water body heat storage technology is coupled, the system can participate in peak regulation and peak service all the year round, and flexible transformation is assisted to be achieved; the diversified heat supply modes of steam extraction heat supply, circulating water waste heat recovery heat supply and heat storage water body heat supply assist in achieving heat supply transformation. The circulating water waste heat utilization technology and the water heat storage technology are deeply coupled with an existing combined heat and power generation unit, and energy-saving and carbon-reducing transformation, flexible transformation and heat supply transformation of the combined heat and power generation unit can be achieved at the same time.

The invention discloses a dynamic monitoring-based deaerator water supply control method and system for a nuclear power plant, and relates to the field of deaerator water supply control, and the method comprises the steps: firstly, through a hybrid online identification algorithm, analyzing a historical valve position instruction and a water supply flow sequence in real time, and dynamically estimating the local gain and hysteresis width of a valve under the current working condition; then, the parameters identified in real time are utilized to carry out prospective compensation on the expected flow variation calculated by the main controller. In other words, the instruction amplitude is adjusted according to the estimated local gain, and it is ensured that consistent flow response can be obtained under different loads; meanwhile, when the instruction is reverse, the compensation amount is actively applied according to the estimated hysteresis width so as to eliminate the adjustment dead zone and oscillation caused by hysteresis. In this way, the nonlinear object of the valve is equivalent to a linear link with consistent response, and the stability and accuracy of the deaerator water level control system in the full working condition range are remarkably improved.

The present application discloses a continuous dynamic and efficient devolatilization method for a polymer / volatile system based on high mass transfer interfaces, including the following steps: providing a dynamic single-screw devolatilizer, feeding a polymer solution to the devolatilizer, wherein the polymer solution includes polymer and volatile substances with small molecule weight, and the volatile substances include organic solvents, residual monomers, water or reaction by-products; conveying and compressing polymer materials by the screw downstream a devolatilization section, and extruding the polymer materials out of the dynamic single-screw devolatilizer directly; or providing a side-feeding extruder downstream of the devolatilization section and feeding plastic additives into a devolatilized polymer melt, and then melt blending the plastic additives with the devolatilized polymer melt at an end of the dynamic single-screw devolatilizer before exiting the dynamic single-screw devolatilizer.

Disclosed is an energy storage and steam generation system, including an electrode steam boiler. One side of the electrode steam boiler is connected with a boiler deaerator through a pipeline. A pipeline A is arranged at the top of the electrode steam boiler. The pipeline A is connected with a steam superheater, and an outlet of the steam superheater is provided with an external steam supply outlet pipeline. A molten salt steam generation bypass pipeline and a pipeline B are arranged on the steam superheater. One end of the molten salt steam generation bypass pipeline is connected to the steam superheater. A low-temperature molten salt storage tank is connected to the pipeline B, and a high-temperature molten salt storage tank is connected to the low-temperature molten salt storage tank through a pipeline. The other end of the molten salt steam generation bypass pipeline is connected to the high-temperature molten salt storage tank. Meanwhile, a generation method is further disclosed. According to the present disclosure, electric energy is converted into heat energy to be stored in the molten salt, and then energy is released for external steam supply by means of a method for generating steam through heating by coupling the molten salt, thereby realizing large-scale heat storage, prolonging the life of a heating system, and improving the reliability.

The invention relates to the technical field of flow detection, and discloses a device and method for detecting the flow of gas-liquid two-phase flow in a microtubule, the device comprises a separation mechanism, the separation mechanism further comprises a main body, the inner wall of the main body is fixedly connected with an annular plate, the left side of the main body is fixedly connected with an inlet pipe, and the right side of the main body is fixedly connected with a liquid outlet pipe; after the fluid flows into the top of the spiral plate, the fluid flows downwards along the spiral plate, the fluid is subjected to the action of centrifugal force and centripetal force in the flowing process, so that the flow speed is changed, the fluid is subjected to the action of the centrifugal force, liquid with high density is thrown to the outer side, and gas with low density is concentrated in a central area; the liquid in the fluid continuously flows downwards and flows into the liquid outlet pipe through the through groove under the influence of gravity, so that the liquid in the fluid can be separated and measured respectively after being separated, mutual interference between gas-phase flow and liquid-phase flow can be avoided, and the accuracy of a measurement result is improved.

The invention belongs to the technical field of fused salt energy storage, and particularly relates to a start-stop peak regulation coal-fired power generation system and method coupled with fused salt energy storage. According to the system and method for achieving safe and efficient start-stop peak regulation of the unit through coupled fused salt energy storage, when the unit needs to be shut down, a boiler operates at the lowest stable combustion load, a back pressure turbine is arranged to absorb boiler main steam to provide necessary auxiliary power for the unit, and fused salt and a water heat storage system are added to store boiler hot resteam; the original steam turbine of the unit stops, and the unit stops and does not stop the boiler; heat stored by the fused salt and water heat storage system is used for generating steam in unit starting and load increasing stages to increase the load increasing rate of a unit turbine. According to the method, the operation safety problem, the economical problem and the service life loss problem of unit start-stop peak regulation are solved.

A cooling system, comprising: - a first cooling circuit (10), the first cooling circuit having a first coolant pump (12); - a second cooling circuit (20), the second cooling circuit having a second coolant pump (22); - an expansion tank (30), the expansion tank being provided with an expansion chamber (31) for accumulating coolant, wherein the expansion chamber is connected to the second cooling circuit (20) so as to allow the expansion chamber to receive coolant from the second cooling circuit; and - a degassing device (40), the degassing device being arranged in the first cooling circuit for separating bubbles from the coolant circulating therein. The degassing device (40) is located at a position lower than the expansion tank (30) and is connected to the expansion chamber (31) via a static pipeline (5) so as to allow the bubbles separated from the coolant in the degassing device to migrate upward in the static pipeline towards the expansion chamber.

The invention relates to the technical field of thermal power generation, in particular to a coal-fired power plant based on fused salt heat storage, a power generation system and an operation method. The coal-fired power plant comprises a boiler, a steam turbine, a condenser, a deaerator, a first heating unit, a second heating unit and a generator. The coal-fired power plant is further provided with a first pipeline, a second pipeline, a third pipeline and a fourth pipeline, one end of the first pipeline is connected to the pipeline between the boiler and the steam turbine, and the other end of the first pipeline is connected with an air inlet of the fused salt heating unit. One end of the second pipeline is connected with an air outlet of the fused salt heating unit, and the other end is connected with the condenser; one end of the third pipeline is connected with the deaerator, and the other end is connected with an air inlet of the steam generation unit; one end of the fourth pipeline is connected with an air outlet of the steam generation unit, and the other end is connected with the turbine and the first heating unit. And the peak regulation depth and the variable load rate of the coal-fired power plant are improved.

A thermal deoxidization dead steam heat mass automatic recovery device comprises a thermal deaerator, a dead steam condensation separation heat exchanger, a dead steam condensation water tank and a PLC, a dead steam outlet and a condensation water inlet are formed in the top of the thermal deaerator, a first pressure meter is further arranged at the top of the thermal deaerator, and a dissolved oxygen meter is arranged in the thermal deaerator; the dead steam condensation separation heat exchanger is provided with a dead steam inlet, a condensate water outlet, a non-condensed gas discharge outlet, a cooling water inlet, a cooling water outlet and a second pressure gauge, the dead steam outlet is connected with the dead steam inlet through a first dead steam discharge pipe, and the first dead steam discharge pipe is provided with a first discharge electric control valve; a second dead steam discharge pipe is mounted at the non-condensable gas discharge port; and a second discharge electric control valve is arranged on the second dead steam discharge pipe. Dead steam and non-condensable gas can be automatically and accurately discharged according to the actual deoxidization requirement of the system, and the effect of energy-saving and water-saving recovery of the dead steam is achieved while efficient deoxidization of the thermal deaerator is guaranteed.

The invention belongs to the technical field of gas separation engineering, and particularly discloses a deep removal method and device for dissolved oxygen in a pregnant solution, and the device comprises an absorption unit and a removal unit. A barren liquor inlet is formed in the upper part of the absorption unit, barren liquor enters from the upper part of the absorption unit, a feed gas inlet is formed in the lower part of the absorption unit, feed gas enters from the lower part of the absorption unit, the barren liquor and the feed gas are in countercurrent full contact in the absorption tower, and oxygen-containing rich liquor is obtained at the bottom of the absorption tower. The rich liquid enters the removal unit from the absorption unit, the rich liquid inlet is located in the upper portion of the removal unit, the lower portion of the removal unit is provided with a replacement gas inlet, replacement gas enters the removal unit from the lower portion of the removal unit, and after the replacement gas is in countercurrent full contact with the oxygen-containing rich liquid, removal gas containing slightly-dissolved gas such as oxygen is formed at the top of the removal unit. The removed gas is discharged or enters a recycling system according to field requirements, and deoxidized rich liquid is sent out from the bottom of the removal unit. A purified gas outlet is formed in the top of the absorption unit, and purified gas is sent out from the outlet.

The utility model discloses a carbon dioxide removal device which comprises a degassing tower, the degassing tower is sequentially provided with an exhaust funnel and a demisting layer from top to bottom, the lower end of the demisting layer is provided with a plurality of spraying layers and a plurality of packing layers, and each of the spraying layers and each of the packing layers are arranged at intervals; a degassing fan is arranged on the side surface of the degassing tower; the spraying layer is connected with a spraying pump, the other side of the spraying pump is connected with the bottom of the degassing tower, and a solution analyzer is arranged between the spraying pump and the spraying layer.

An apparatus for an aircraft powerplant includes an impeller rotor and a seal runner. The impeller rotor includes a plurality of fluid circuits. Each of the fluid circuits includes a first outlet passage, a second outlet passage and an inlet passage fluidly coupled to the first outlet passage and the second outlet passage in parallel. The seal runner includes a bore, an inner guide surface and an outer land surface. The seal runner extends circumferentially about the axis and radially between the inner guide surface and the outer land surface. The bore is fluidly coupled to the first outlet passage of each fluid circuit. The inner guide surface forms a radial outer peripheral boundary of the bore. The inner guide surface radially diverges away from the axis as the inner guide surface extends axially away from the impeller rotor and to a distal end of the seal runner.

The invention discloses a high-molecular polymer devolatilization method and a high-molecular polymer devolatilization device. According to the devolatilization method, a devolatilization machine is divided into a first devolatilization area, a second devolatilization area and a third devolatilization area, and steam is introduced into a devolatilization machine jacket and a rotor shaft to heat the devolatilization areas in the devolatilization machine; in the devolatilization process, the temperature of each devolatilization area is strictly controlled, the devolatilization temperature of the next unit devolatilization time is dynamically adjusted by obtaining the unit devolatilization time, and the obtained high-viscosity melt is subjected to deep devolatilization after being crushed under the working condition of a thermal medium. According to the method, the energy consumption in the devolatilization process is controlled by strictly regulating and controlling the temperature of each devolatilization area according to the physicochemical property change of a material in the devolatilization process, and the device provided by the invention is provided with an independent closed heating system, so that the contact between a polymer and a heating medium is effectively isolated, and the energy consumption is reduced; and the distributed precise control of the temperature is also realized, the generation of waste liquid and waste gas is thoroughly solved, and the technical purposes of high-efficiency waste-free devolatilization and great reduction of energy consumption are realized.

The utility model provides a flexible peak shaving system for a fused salt energy storage coupling thermal power generating unit. The flexible peak shaving system comprises a thermal power generation system, a fused salt heat absorption unit, a fused salt storage unit and a fused salt heat release unit. In the peak regulation stage of the thermal power generating unit, the fused salt heat absorption unit operates, part of main steam is extracted to serve as a heat source and exchanges heat with fused salt to achieve fused salt heat absorption, meanwhile, the fused salt heat release unit operates, a first steam return pipe is opened and used for supplementing boiler reheat steam, the problem of boiler cold overtemperature during fused salt energy storage is solved, and the system can operate smoothly and safely. When the thermal power generating unit operates at the peak, the fused salt heat release unit operates, the fused salt heat absorption unit does not operate, the first steam return pipe is closed, high-temperature fused salt heats supplied water shunted by the water supply unit to generate steam, and the steam converges to a main steam pipeline and / or a reheat steam pipeline through a pipeline and / or exchanges heat with condensate water of the water supply unit through the pipeline. And the molten salt heat release process is realized.

The invention relates to the technical field of thermal engineering, and discloses a horizontal split type rotating film deaerator which comprises a first-stage deoxidizing part and a second-stage deoxidizing part on one side of the first-stage deoxidizing part, an annular air inlet part is installed on the side, close to the second-stage deoxidizing part, of the first-stage deoxidizing part, and an annular water inlet part is arranged on the side, away from the second-stage deoxidizing part, of the annular air inlet part. A packing layer is installed on the side, close to the first-stage deoxidizing piece, of the second-stage deoxidizing piece, a gas conveying piece is arranged on the side, perpendicular to the second-stage deoxidizing piece, of the packing layer, a first butt joint piece is fixedly connected to the side, away from the first-stage deoxidizing piece, of the second-stage deoxidizing piece, and a deoxidizing water tank is fixedly connected to the side, away from the second-stage deoxidizing piece, of a first mounting piece. According to the device, conveying pipes in four directions are arranged on the annular water inlet piece and the annular air inlet piece correspondingly, the flow dividing assembly is placed outside the first-stage deoxidizing piece, and damage caused by long-time internal water supply flushing and heating is reduced.

A de-aerator is provided that includes a body, a cover panel, a fluid inlet, a helical fluid passage, at least one partition, and at least one fluid outlet. The body extends between opposing first and second axial ends. The body has a sidewall, a base panel, and an internal cavity. The fluid inlet is in communication with the body and is configured to direct fluid tangentially into the internal cavity. The helical fluid passage is disposed within the internal cavity and has entry and exit ends. The helical fluid passage has circumferential turns that each include an air passage. The at least one partition is disposed within the internal cavity at or below the passage exit end, spaced above the base panel. The at least one fluid outlet is configured to permit liquid passage from the internal cavity of the body to outside the body.

The invention relates to the technical field of aerogel defoaming, in particular to an aerogel slurry vacuum defoaming and dispersing device which comprises a control assembly, a lifting mechanism, a vacuum heating assembly and a stirring assembly, integrates the functions of vacuum defoaming, high-speed dispersing and uniform mixing, and is widely applied to scientific research laboratories and industrial production scenes. A high-precision vacuum system is adopted, tiny bubbles in the material are effectively removed, and the transparency and uniformity of a finished product are remarkably improved; a stepless speed regulation stirring device is arranged, so that the dispersion requirements of materials with different viscosities are met; a totally-closed acrylic protective cover and a stainless steel cavity structure are adopted, so that the operation safety is ensured, and the cleaning is easy; the touch console adopts a PLC + touch screen design, supports accurate setting and real-time monitoring of key parameters such as vacuum degree, time, stirring speed and the like, and is convenient to operate and high in repeatability.

The invention relates to a method for producing high-octane gasoline through hydrocarbon catalytic cracking and a reaction system thereof, and the method comprises the following steps: in a constant linear velocity fluidized bed reactor, diesel oil and other light petroleum hydrocarbons are contacted with a high silica-alumina ratio catalytic cracking catalyst, and self-heat balance is maintained through regeneration flue gas circulation to produce liquefied gas and high-octane gasoline. According to the method disclosed by the invention, heavy oil such as naphtha, wax oil and residual oil can be processed while light hydrocarbon such as diesel oil is processed, the conversion rate of the diesel oil is high, self-heating balance can be realized, the problem of excessive diesel oil production capacity of a refinery plant is solved, and the processing benefit of crude oil is also improved.

The embodiment of the invention relates to the field of energy storage, and provides an energy storage system and a cooling circulation method, and the energy storage system comprises a liquid cooling unit which is provided with a liquid outlet and a liquid return port; the battery cluster is communicated with the first liquid outlet pipe through a second liquid outlet pipe, the battery cluster is communicated with the first liquid return pipe through a second liquid return pipe, and the liquid cooling unit is used for providing a cooling medium for the battery cluster through the liquid outlet and is also used for recovering the cooling medium in the battery cluster through the liquid return port; the degassing device is connected between the liquid cooling unit and the battery cluster; the battery management system is used for controlling the energy storage system to be switched from a normal operation mode to a degassing mode when the energy storage system meets a preset condition, in the degassing mode, the cooling medium passes through the degassing device, and the degassing device works to remove gas in the cooling medium passing through the degassing device. The reliability of the energy storage system can be improved.

A system and method are provided in at least one embodiment to process water to produce gas that can be separated into at least two gas flows using a water treatment system having a disk-pack rotating in it to cause out gassing from the water. In a further embodiment, the method and system use the gas released from the water to produce substantially fresh water from the processed salt water.

Gas trap devices and methods of use such as uses for intravenous medial use are described. They effectively prevent gas bubbles from migrating distally towards a patient in use. They may have a priming port which is used only once and permanently sealed at priming. There may be a particle filter to also prevent migration of particles towards the outlet, and this may be across the full cross section of the chamber between the diverter and the outlet conduit.

The invention relates to a thermal power generating unit and pressure-bearing heat storage coupling system and an operation method.The system comprises a unit subsystem and a heat storage and supply subsystem, the heat storage and supply subsystem comprises a heat storage loop, a heat storage tank, a flash evaporation steam supply loop and a heat exchange hot water supply loop, and the heat storage loop comprises a steam-water heat exchanger, a first mixing heat exchanger and a first booster pump; a steam inlet of the steam-water heat exchanger communicates with the cold re-extraction branch pipe and the hot re-extraction branch pipe, and a high-pressure water inlet and a drainage outlet of the steam-water heat exchanger communicate with a high-pressure water outlet and a drainage inlet of the first mixing heat exchanger correspondingly. A heat storage water outlet and a heat storage water inlet of the heat storage tank communicate with a high-pressure water inlet of the first mixing heat exchanger and a high-pressure water outlet of the steam-water heat exchanger correspondingly, and the flash evaporation steam supply loop and the heat exchange hot water supply loop are used for load rising peak shaving and frequency modulation. The variable load rate of the unit is improved, and frequency modulation of the unit is achieved; and the peak regulation capacity of the unit is improved, and ultra-wide load peak regulation of the unit is achieved.

The invention provides a vacuum devolatilization device which comprises a vertical container, the container is provided with an extraction opening and a material inlet, the upper part of the container is provided with a melt pressure chamber, and the melt pressure chamber is communicated with the material inlet; the devolatilization device is provided with at least one falling film pipe, the inner wall surface of the falling film pipe is a material falling film flowing contact surface, a vacuum chamber is arranged above the melt pressure chamber in the container, and the extraction opening is formed in the vacuum chamber; and a gas phase channel pipe is arranged at the upper end of the falling film pipe, penetrates through the melt pressure chamber and is communicated with the vacuum chamber. The vacuum-pumping effect can be improved, interference of volatile component gas on material falling film flowing is reduced, and meanwhile the inner component is compact in structure and easy to industrially amplify.