262results about How to "Does not affect normal operation" patented technology

The embodiment of the invention provides a photovoltaic module control device, and the device comprises at least one bypass module which is used for being connected with at least one photovoltaic module in parallel; the driving circuit is used for driving at least one bypass module to work under the control of the controller; the power supply module is used for obtaining electric energy from the at least one photovoltaic module and outputting the electric energy to the controller under the condition that the at least one photovoltaic module works normally and the at least one photovoltaic module is bypassed; and the controller is used for controlling the conduction state of the at least one bypass module so as to control whether the at least one photovoltaic module is in the bypass mode or not. The power consumption of the control device is greatly reduced, meanwhile, the problem of voltage stress borne by the first series switch tube in the series control device when the first series switch tube is disconnected is solved, and the safety performance of the bypass control device is improved.

The invention relates to the field of coal gasification chilled water, in particular to a coal gasification chilled water filtering system which comprises at least two filter bodies connected into a coal gasification chilled water system and arranged in parallel, and each filter body comprises a shell, a V-shaped sieve plate, a sieve plate flushing assembly and a shell flushing assembly. According to the coal gasification chilled water filtering system, on-line automatic dual cleaning of the filter body can be achieved, under the condition that normal operation of the filtering system is not affected, high-pressure grey water of a coal gasification grey water system is used for cleaning the sieve plate from the upper portion through the top flushing spray head, the inner wall of the shell is flushed through the combination of the side flushing pipe, and the filtering effect is good. The flushing effect of the filter body is improved, the service life of the filter body is prolonged, recycling of the filter body is achieved, the problems that at present, ash blocks the filter, chilled water supply is insufficient, and a gasification furnace cannot operate for a long period are solved, the working intensity of workers is reduced, and the production investment cost is saved.

The invention provides a power business anti-quantum cryptography migration progressive control method based on risk awareness, and belongs to the technical field of migration control, and the method comprises the steps: collecting key parameters of all to-be-migrated businesses in a power system, carrying out the standardization preprocessing of the collected key parameters, and constructing a business feature matrix; acquiring relevant parameters of quantum attacks in real time, and calculating a real-time quantum attack risk value of each service to be migrated; based on the service feature matrix and the real-time quantum attack risk value, constructing a dynamic migration rhythm adaptation model, and calculating a migration priority, a migration rate and a migration interval of each service to be migrated; and constructing a migration fault-tolerant and recovery model, monitoring the migration process in real time, calculating a fault influence range and recovery cost based on fault information, and executing corresponding adjustment operation. Accurate, dynamic and high-reliability control of anti-quantum password migration of the power business is realized, safe and stable operation of the power business in the migration process is guaranteed, and the migration efficiency and the anti-quantum attack capability are improved.

The invention relates to a plug-in-based Sidecar information acquisition method and system, and the method comprises the steps: creating an acquisition plug-in, configuring the acquisition plug-in in a control center, and configuring the configuration information of the acquisition plug-in to comprise the name of an application system needing to be issued; the acquisition plug-in unit is issued to the Sidecar; the acquisition plug-in is loaded in the Sidecar, and the acquisition plug-in is operated; and collecting data through the collection plug-in. According to the method, the Sidecar function is expanded on the basis that the system architecture is not changed by using the plug-in function, the plug-in is loaded by dynamically monitoring the resource use condition, accurate and dynamic issuing of the collected plug-in is achieved, and decoupling with a third party is achieved.

The invention relates to a cable partial discharge detection and identification method and system based on a pulse polar coordinate vector. The method comprises the following steps: installing an Internet of Things intelligent sensor for sensing a current pulse signal of a cable grounding lower lead; background noise in the current pulse signal is removed based on wavelet multi-resolution decomposition and an improved wavelet threshold; calculating a polar coordinate vector of the current pulse signal according to the denoised current pulse signal so as to draw a polar coordinate vector domain distribution diagram; and calculating a cross correlation coefficient between the polar coordinate vector domain distribution diagram and polar coordinate vector diagrams of various signal types in a preset sample library so as to determine the signal type of the current current pulse signal. Compared with the prior art, the signal type can be judged without obtaining the power frequency synchronizing signal, hardware investment is saved, and cable insulation state evaluation can be rapidly and effectively achieved.

The invention discloses an arch bolting and grouting combined operation trolley and a construction method, and relates to the technical field of tunnel construction equipment, the arch bolting and grouting combined operation trolley comprises a trailer body and an arm support system for construction operation, and further comprises an operation platform and a stirring and grouting device; the trailer body is provided with a chassis structure which can be correspondingly separated from the bottom of the working platform; hydraulic supporting legs used for lifting and supporting the working platform are arranged at the four corner ends of the working platform. A stirring grouting device used for grouting operation is arranged at the position, corresponding to the position between the front wheel and the rear wheel of the trailer body, of the bottom of one side of the operation platform. A discharging hole of the stirring device is correspondingly communicated with a feeding hole of the spiral conveyor through a gate valve; the working end of the telescopic arm of the arm support system is detachably connected with a self-adaptive clamping jaw; the working platform can be separated from the trailer body; one trolley has two purposes, so that the practicability is improved; the stirring device is integrated on the operation platform, so that grouting operation is facilitated during tunnel construction; the clamping reliability of the self-adaptive clamping jaw is higher.

An arch-anchor-grouting combined operation trolley and a construction method relate to the technical field of tunnel construction equipment, comprising a trailer body and a boom system for construction operations, and also comprising an operation platform and a stirring grouting device; the trailer body is provided with a chassis structure that can be separated from the bottom of the operation platform; the four corner ends of the operation platform are provided with hydraulic legs for lifting and supporting the operation platform; a stirring grouting device for grouting operations is provided at the bottom of one side of the operation platform corresponding to the position between the front and rear wheels of the trailer body; the discharge port of the stirring device is correspondingly connected to the feed port of a screw conveyor through a plug valve; the operation end of the telescopic arm of the boom system is detachably connected with an adaptive clamp; the operation platform of the invention can be separated from the trailer body; one vehicle has two uses, which improves practicality; the stirring device is integrated on the operation platform, which is convenient for grouting operations during tunnel construction; the adaptive clamp of the invention has higher clamping reliability.

The utility model provides a methyl tert-butyl ether production device with switchable reactors, which is characterized in that a plurality of reactors are arranged, and a communicating pipeline and a switching valve are arranged between a feeding system and each reactor, so that raw materials C4 and methanol can selectively enter one of the reactors through valve switching operation; and the priority of the three reactors can be adjusted at will according to the activity condition of the catalyst in the production process, and any reactor can be independently switched and used without influencing the normal operation of the device.

The invention provides a method for calculating train braking force based on heavy-load combined train pipe pressure fluctuation, and belongs to the technical field of locomotive braking force calculation. The problem that the requirement for exploration and analysis of heavy-load train pipe pressure fluctuation influence factors cannot be met in the current detection and test of a heavy-load train air braking system is solved. Comprising the following steps: calculating the brake cylinder pressure of the vehicle according to pressure air of an auxiliary air cylinder when the vehicle is braked and pressure air filled into a brake cylinder by a train pipe through a local reduction valve in the secondary local reduction process; the step of calculating the braking force of the vehicle comprises the substeps of calculating brake shoe pressure; calculating the friction coefficient of the brake shoe; calculating the braking force of a single brake shoe; calculating the air braking force of the whole heavy haul train; calculating the train pipe pressure reduction r0 when the braking force of the whole heavy-load train is not influenced by the temperature, calculating the train braking force when the braking force of the whole heavy-load train is not influenced by the temperature according to the r0, and calculating the train braking force when the braking force of the whole heavy-load train is influenced by the temperature; the method is applied to train braking force analysis and calculation.

The utility model provides a fin control device for a buffering area of a fin machine, which belongs to the technical field of radiating fin production equipment and comprises a base and a plurality of fin channel baffles, the base is fixed on the upper surface of a fin machine body, a sensor control module is arranged on the base and is connected with an analog quantity sensor, and the analog quantity sensor is connected with the fin channel baffles. The analog quantity sensor comprises a sensor transmitting end and a sensor receiving end which are respectively arranged above a fin channel baffle plate, the sensor control module is connected with a PLC (Programmable Logic Controller), the PLC comprises a CPU (Central Processing Unit), an input module and an output module, the input module is connected with the sensor control module, the output module is connected with a servo motor, and the servo motor is connected with the sensor control module. The servo motor is arranged on one side of the base through a servo motor mounting seat, the fin channel baffle is connected with an adjusting device, the adjusting device is connected with the fin channel baffle in a penetrating mode through a lead screw, the structure is simple, operation is convenient, and the product percent of pass is high.

The utility model discloses a kind of lifting hoisting devices for wind power generation equipment installation, it is related to hoisting technical field, and the utility model includes bottom plate, the top surface side of bottom plate is equipped with limiting assembly, the top surface of bottom plate is fixedly connected with lifting assembly, the lifting assembly includes base, the top of base is fixedly connected with two first fixed plate, the opposite side of two first fixed plate One end is rotatably connected with first rotating shaft, the top of base two sides is fixedly connected with support frame, the upper portion of one end of support frame is fixedly connected with two second fixed plate, the opposite side of two second fixed plate One end is rotatably connected with second rotating shaft with the two sides inner wall of support frame, the two sides inner wall of support frame is slidably connected with limiting plate, the utility model can play the specified height of wind power generation equipment hoisting, and wind power generation equipment can be prevented from falling when avoiding power failure and power failure.

The invention relates to a tower crane foundation structure arranged on an original underground structure top plate and a construction method of the tower crane foundation structure. The tower crane foundation structure comprises a plurality of steel plates, supporting steel bars, concrete supporting columns, a concrete main beam, a concrete secondary beam and a concrete connecting plate; each steel plate corresponds to an original underground structure frame column below an original underground structure top plate, supporting steel bars are welded to each steel plate, main beam steel bars are bound between the supporting steel bars on every two adjacent steel plates, and secondary beam steel bars are bound between every two sets of oppositely-arranged main beam steel bars. Concrete connecting plate steel bars are bound on the main beam steel bars; the upper surface of each steel plate is connected with a concrete supporting column. A concrete main beam is connected between every two adjacent concrete supporting columns. A concrete secondary beam is connected between the two concrete main beams which are oppositely arranged; the concrete main beams, the concrete secondary beams and the concrete supporting columns are connected with concrete connecting plates. The structure is stable, and construction is easy.

This utility model relates to the field of power electronics technology, specifically to a DC common bus current limiting and blocking device. It includes an energy storage converter and a DC bus terminal, with a blocking module disposed between the energy storage converter and the DC bus terminal. The blocking module includes multiple blocking units, and the energy storage converter is connected to the blocking units. The blocking units are connected in parallel to each other and connected to the DC bus terminal. This DC common bus current limiting and blocking device can achieve rapid current limiting and isolation when multiple energy storage converters are connected in parallel to the DC bus. It has high response speed and dynamic detection capability, and can effectively avoid the adverse effects of abnormal current caused by faulty equipment on other equipment.

According to the top heat dissipation type liquid cooling container and the application control method thereof, the cooling tower container top arrangement design is adopted, a CDU module is omitted, the overall cost is reduced, more Tanks can be deployed in the spare space after the CDU module is omitted, and the computing power of a single liquid cooling container is greatly improved. The cooling tower is compact in structural form, low in space occupancy rate, higher in integration degree and good in universality and reliability, and the ground space of the cooling tower is saved. After a certain cooling tower fails, normal operation of other devices is not affected, and the disaster recovery capacity is improved. The cooling tower and the Tank carry out heat exchange one by one, the heat dissipation efficiency is higher, the number of water cooling pipelines is smaller, and the integration degree is higher.

A flue gas desulfurization device of desulfurization absorption tower external crystallization, comprising the following units, a flue gas desulfurization unit: comprising a main flue gas duct subunit, a desulfurization absorption subunit; a flue gas evaporation crystallization unit: comprising a secondary flue gas duct subunit, an evaporation crystallization subunit and a solid-liquid separation subunit connected in sequence; the desulfurization absorption subunit comprises a desulfurization absorption tower, a circulating pump, a circulating tank, a desulfurizer supply device, a process water supply device and an oxidizing air supply device; the main flue gas duct subunit comprises a pipeline connected to the desulfurization absorption tower as an inlet and outlet flue; a boiler induced draft fan and a damper are connected in series on the pipeline; one pipeline of the main flue gas is connected to the desulfurization absorption tower, and another pipeline is connected in parallel to a crystallization booster fan and a flue which is connected to the evaporation crystallization subunit; the evaporation crystallization subunit is additionally provided with two pipelines connected to the desulfurization absorption tower, one of which is used to introduce a desulfurization byproduct solution from the desulfurization absorption tower, and the other of which is used to return low-temperature flue gas to the desulfurization absorption tower.

The invention relates to a folding walking-replacing camping car, and relates to the technical field of camping cars, the folding walking-replacing camping car comprises a car frame and a control pull handle, the car frame comprises a supporting column body, a side folding frame and a bottom folding frame, the supporting column body is divided into a front supporting column and a rear supporting column, a front wheel frame is rotatably arranged at the bottom of the front supporting column, and a rear wheel frame is fixedly arranged at the bottom of the rear supporting column; a rolling wheel is rotationally arranged on the rear wheel frame; a steering assembly and a control button are arranged on the control pull handle, the control button is electrically connected with the electric driving wheels, a seat plate is jointly installed at the tops of the supporting columns, and in the folding state, the folding walking-replacing camping vehicle has the folding state, the riding state and the trailer state, and in the folding state, all the side folding frames are completely folded; in the trailer state, all the side folding frames are completely unfolded; in the riding state, the seat plate is installed on all the supporting columns. The camping car has the advantages that during outdoor activities, a user can use the camping car as a tool for riding instead of walk, and the multifunctionality of the camping car is improved.

This invention discloses a catalytic reactive distillation unit, apparatus, and method. The catalytic reactive distillation unit includes: a reaction mass transfer channel, the upper end of which receives low-temperature liquid-phase reactants flowing downwards, and the lower end of which receives high-temperature gas phase flowing upwards; the reaction mass transfer channel contains a catalyst layer and a packing layer, with the catalyst layer positioned above the packing layer, and a first space between them; and a rising gas bypass, located outside the reaction mass transfer channel and connected to the first space. The liquid-phase products after the catalytic reaction merge with the high-temperature gas phase in the packing layer and undergo gas-liquid mass transfer. The rising gas phase after mass transfer carries the light components from the liquid-phase products into the rising gas bypass, completing mass transfer separation. This invention, through the setting of the rising gas bypass, not only increases the gas phase flow rate and effectively reduces the pressure drop within the reaction mass transfer channel, but also effectively solves the space occupation problem of the equipment. This invention can clean the blockage of the catalyst filter without additional power and can realize online replacement of the catalyst and / or packing.

The utility model discloses a vehicle-mounted closestool. The vehicle-mounted closestool comprises a base mechanism, and the base mechanism comprises a seat body, a drainage module and a switch assembly. Wherein the seat body is provided with an opening and a water retaining part, the water retaining part is arranged at the opening, the switch assembly is provided with a switching handle, the switching handle bypasses the water retaining part and extends out of the opening, and opening or closing of a drainage port of the drainage module can be switched through the switching handle. Due to the fact that the water retaining part is arranged at the opening, and the switching handle does not interfere with the water retaining part while penetrating out of the opening, the vehicle-mounted closestool with the structure can not affect normal operation of the switching handle, can effectively prevent external water from entering the base mechanism through the opening, and has good practicability.

A protection structure for a power output driven shaft of a tractor comprises a power output shell. A driven shaft bearing and a driven shaft bearing clamp spring for limiting the axial movement of the driven shaft bearing are arranged in the power output shell; the power output driven shaft is mounted on the inner sides of the driven shaft bearing clamp spring and the driven shaft bearing; and the power output shell is provided with a protective flange for providing support when the driven shaft bearing snap spring deforms. Axial impact force generated by the universal transmission shaft on the power output shaft during transition of the tractor or working with a machine tool is overcome, and faults such as breakage and damage of a bearing clamp spring, early abrasion of a power output shell and tooth breaking of a gear caused by axial movement of a driven shaft due to overlarge axial impact force are prevented.

The utility model relates to electrolytic aluminium equipment technical field, concretely relates to a kind of anti-falling device of electrolytic aluminium multifunctional crown block operation, including anode lifting rod, anode lifting rod is hinged with screw head lifting mechanism, anode lifting rod is fixedly connected with mounting block, mounting block is equipped with containing cavity, containing cavity is equipped with through-hole, the outside of mounting block is equipped with first hydraulic cylinder;Screw head lifting mechanism is hinged with screw head mechanism, screw head mechanism is fixedly connected with mounting plate, mounting plate is fixedly connected with fixed link, fixed link is hinged with swing arm, second hydraulic cylinder is hinged between swing arm and mounting plate, one end of swing arm is fixedly connected with connecting plate, one end of connecting plate is fixedly connected with support plate.The utility model is inserted into the through hole of anode guide rod top by the telescopic end of first hydraulic cylinder, realizes mechanical locking, and the bottom of small box clamp is held by support plate by second hydraulic cylinder drive, thereby the risk of anode guide rod and small box clamp falling off can be reduced.

The utility model discloses a filament stretching device for manufacturing synthetic fibers, which comprises a drawing machine, and the drawing machine comprises an equipment box, a drawing roller and a yarn separating column. The replacement assembly comprises a mounting plate, two U-shaped guide grooves, a supporting plate, a mounting hole, a threaded hole and a locking rod, the mounting plate is fixed to the upper end of the side edge of the equipment box, one side edge of the U-shaped guide grooves is fixed to one end of the mounting plate, the supporting plate is fixed between the two U-shaped guide grooves, the mounting hole is formed in the middle of the supporting plate, and the threaded hole is formed in the middle of the supporting plate. The threaded holes are formed in the two ends of the supporting plate and communicate with the mounting holes, and the locking rods are connected into the threaded holes in a threaded mode. The problems that due to the fact that the distance between the yarn separating columns is small, fibers are affected by high temperature, moisture or oil stains exist on the surfaces of the fibers, the middles of the yarn separating columns are blocked, then the fibers are adhered, the stretching quality of the fibers is affected, and the production schedule is affected when the yarn separating columns are cleaned or replaced after a machine is shut down are solved.

The invention discloses a railway sensitive data watermark tracing method based on invisible characters, and the method comprises the following steps: S1, watermark information preprocessing: calculating watermark information needing to be written into abstract information with a fixed length, then generating an invisible character string according to a coding rule, and then carrying out the fragmentation of the invisible character string; s2, watermark information writing: traversing result set metadata to determine a written column and a position thereof, and correspondingly writing invisible character string fragments; and S3, watermark traceability: reading the provided data set file according to rows, extracting invisible character strings, comparing the invisible character strings with pre-stored watermark information, calculating a matching degree, and outputting a traceability result. According to the method, watermark embedding and traceability of the railway sensitive data are achieved, effective protection is provided for railway data safety, an original data structure is not changed, the influence on an existing system is small, meanwhile, high universality and expandability are achieved, and the method is suitable for protection requirements of various railway sensitive data.

The utility model discloses a protective device for an electrolytic aluminum polishing machine, which belongs to the technical field of polishing machine protection and comprises a fixed bottom plate, a support frame, a top plate and a saw blade fixing component, the support frame is mounted on the fixed bottom plate, the top plate is arranged at the top of the support frame, and an inclined transparent protective plate is arranged in the middle of the top plate. A saw blade fixing assembly is installed under the transparent protection plate and comprises a rotating base, a lifting supporting rod and a supporting plate. The saw blade polishing device has the advantages that the saw blade polishing device is horizontally placed on the ground, a blunt saw blade can be placed on the saw blade fixing assembly of the saw blade polishing device to be limited and fixed, the inclined transparent protection plate is arranged over the saw blade fixing assembly, and a worker can hold a polishing machine to the position below the transparent protection plate to polish the saw blade; sparks or chippings are prevented from being splashed on the body of a worker, normal operation of the worker is not affected, great convenience is provided for the worker, and the protection effect of the device is further improved.

The utility model relates to the field of annealing devices, in particular to an annealing device for a photovoltaic solder strip double-end tinning machine, which is a double-end annealing device and comprises at least even sets of annealing mechanisms, one set of annealing mechanism is a first annealing mechanism, the other set of annealing mechanism is a second annealing mechanism, and the first annealing mechanism and the second annealing mechanism are arranged side by side. The first annealing mechanism and the second annealing mechanism operate independently or simultaneously; the first annealing mechanism comprises a first pay-off wheel, and a first wire sequentially passes through the first annealing wheel, a first annealing water tank, a first nitrogen glass pipeline and a first air blowing assembly from the pay-off position of the first pay-off wheel and then enters the next procedure through a second baffle; a second wire sequentially passes through the first baffle, the second annealing wheel, the second annealing water tank, the second nitrogen glass pipeline and the second air blowing assembly from the pay-off position of the second pay-off wheel and then enters the next procedure, the first baffle is arranged on the upper portion of the first annealing mechanism, and the second baffle is arranged on the upper portion of the second annealing mechanism. The utility model has the advantages of simple structure and reasonable layout, can effectively shorten the follow-up processing time after the wire is broken, and improves the production efficiency.

The utility model discloses a device for flatness measurement machine table measuring head protection, including the protection cover and gas delivery system of lower end opening, the protection cover is used to cover flatness measurement machine table measuring head downwards, gas delivery system includes gas delivery pipeline, the nozzle of being located gas delivery pipeline terminal and the filter component of being located nozzle upstream, the nozzle is used to the clean gas injection of inside protection cover. This application is through setting up the protection cover of covering measuring head and gas delivery system, through the continuous injection of clean gas in the protection cover of gas delivery system, provides clean, stable environment for machine table measuring head, makes measuring head exempt from environmental dust, chemical gas interference, and this mode does not influence the normal operation of measuring head, makes machine table always be in normal working state, improves flatness measurement machine table measurement data accuracy, accuracy and stability, has important technical value to improve wafer product quality in wafer foundry.

This invention relates to the field of transformer substation fault location technology, specifically disclosing a method and system for locating cable grounding faults on the low-voltage side of a new energy transformer substation. The method includes: plotting three-phase voltage variation curves based on historical three-phase voltage data from the low-voltage side of the transformer substation; clustering detection cycles based on the three-phase voltage variation curves, and determining a voltage tolerance threshold for the detection cycle based on the clustering results; determining voltage fault indicators on the low-voltage side of the transformer substation based on the voltage tolerance threshold, and correcting the initial values ​​based on the voltage fault indicators; extracting abnormal data points from the detection cycle based on the corrected values ​​using the LOF algorithm, and locating the current cable grounding fault location on the low-voltage side of the transformer substation based on the abnormal data points from the fault cycle. This method can promptly detect and accurately locate cable grounding faults on the low-voltage side of the transformer substation, improving the operational reliability of new energy power plants and ensuring power generation efficiency.

The invention discloses an unpowered emergency drainage device for a flooded plant of a hydraulic power plant. The unpowered emergency drainage device comprises a buoyancy assembly, a transmission assembly, a drainage channel and a drainage channel thrust butterfly valve. The buoyancy assembly at least comprises a driving block, and the drainage channel thrust butterfly valve is installed in the drainage channel. The transmission assembly comprises a fixed transmission seat, a telescopic power rod and a transmission rod, and the fixed transmission seat is fixedly mounted; the telescopic power rod is rotationally mounted on the fixed transmission seat, one end of the telescopic power rod is rotationally connected with the driving block, and the other end is a transmission part; the transmission rod is slidably mounted on the fixed transmission seat, one end of the transmission rod is in contact with the transmission portion, and the other end of the transmission rod is in contact with the drainage channel thrust butterfly valve. Buoyancy or gravity is ingeniously used as a driving source, so that the driving block can automatically ascend or descend along with the change of the water level, the opening and closing of the corresponding valve are driven through the ascending or descending action of the driving block, the opening and closing of the drainage channel are effectively controlled, and the device can automatically operate under the conditions of power failure and circuit failure.

This invention relates to the field of power equipment testing technology, specifically to a detector and method for detecting the operational status of disconnecting switches in GIS equipment. The method first generates an action signal based on a first current; then generates a second current and a trigger signal based on the action signal; next, it calculates the current change rate based on the first and second currents; and based on the trigger signal, it determines whether the current change rate is less than a first threshold. If the current change rate is less than the first threshold, an alarm signal is generated. Finally, it determines whether the closing and opening of the circuit breaker are qualified based on the alarm signal. By detecting the induced current generated on the conductor of the grounding switch in the energized part of the GIS equipment, the opening and closing status of the internal disconnecting switch of the GIS equipment is judged. Regardless of whether the mechanical structure of the equipment is normal, it can accurately determine whether the disconnecting switch is properly closed or open, effectively avoiding faults such as discharge, short circuit, and explosion caused by improper closing or opening of the equipment.

A purification mechanism for a vacuum system in an extruder includes a housing, a water supply tank, a water storage tank, and a connecting pipe. The housing contains a water seal layer. The top of the housing has an inlet pipe for connecting to the extruder's exhaust gas source and an exhaust pipe for connecting to the vacuum system. The downstream end of the inlet pipe extends downwards into the water seal layer. An overflow port, adapted to the height of the water seal layer, is located on the side wall of the housing. A filter frame is installed on the top of the water storage tank, below the overflow port. The water supply tank is located above the housing and connected to it via a float valve, the float of which floats on the water seal layer. The upstream end of the connecting pipe is connected to the bottom of the water storage tank, and the downstream end supplies water to the water supply tank. A water pump is installed on the connecting pipe. This invention has a simple structure, low operating cost, and can meet the need for removing impurities from extruder exhaust gas for extended periods.

The invention discloses a staged cooling distillation tower, relates to the technical field of distillation equipment, and aims to solve the technical problem of poor condensation effect due to the adoption of a single or two-stage cooling structure in a conventional distillation tower cooling system. A pre-cooling system, a main cooling system and a rear cooling system are designed, and a cooling medium of 20-30 DEG C circulates in the pre-cooling system; the main cooling system serves as a core condensation unit and is matched with a low-temperature cooling medium of-10 DEG C to 0 DEG C, shock cooling of steam can be achieved within an extremely short time, a cooling agent of 10 DEG C to 20 DEG C of the post-cooling system is fully mixed with residual steam in a mist form, and secondary condensation is conducted on a trace amount of uncondensed steam. The three-stage cooling system disclosed by the invention forms a full-process condensation system of buffering, shock cooling and fine treatment through temperature gradient control, so that the condensation effect of the distillation tower is optimized, and products in steam are better separated.