179 results about "Reflux" patented technology

The invention is suitable for the technical field of agent adding, and particularly relates to a water treatment agent adding method and system.The method comprises the steps that a technological process diagram of a sewage treatment pond is drawn, a water inlet and a water outlet are found out, online monitoring equipment arranged at the water inlet and the water outlet in advance is used for collecting technological indexes of sewage, and the technological indexes of the sewage are obtained; a water inlet index and a water outlet index are defined; the two ends of the backflow pipeline are located at a water inlet and a water outlet respectively, the deployment mode of verification equipment and an intermediate storage tank in the backflow pipeline is set, the verification equipment is used for reading the concentration parameter of backflow liquid in the intermediate storage tank, the concentration parameter is defined as a verification index, the backflow ratio is set, and the verification result is obtained. And creating a multi-level verification mechanism. By collecting real-time sensing data, predictive accurate dosing can be realized, the use efficiency of the medicament can be optimized, a data basis is provided for advanced adjustment of a dosing system, and the stability of effluent quality is greatly improved.

According to the method for detecting the content of the volatile substances in the aquilaria sinensis, provided by the invention, through pretreatment steps such as extraction of an extraction solvent, heating reflux and filtration, a sample is selectively and preliminarily purified, and the matrix effect of subsequent detection and analysis is effectively reduced; an inert capillary column is used for separation, high-purity helium is used as carrier gas, and an optimized heating program and an MRM detection mode are combined; through the synergistic effect of the two components, comprehensive, accurate and high-repeatability qualitative and quantitative analysis of various volatile substances in the aquilaria sinensis, especially nookatone which is easy to leak in a conventional method, is realized, and a reliable technical means is provided for accurate identification and quality evaluation of the aquilaria sinensis.

The application provides a hydrogen deep removal and moisture removal method. High-concentration raw gas is dynamically mixed with dry low-concentration reflux gas in a mixer to form mixed gas, so as to reduce the hydrogen content and reduce the reaction risk. After pressurized heating, oxygen with a precisely matched hydrogen concentration is injected into a reactor for reaction. The reactor is provided with an alternating fixed and rotatable cylinder, and the inner wall of the flow channel is coated with a catalyst; the corresponding cylinder speed is automatically adjusted based on real-time hydrogen concentration detection downstream, and the speed is accelerated when the concentration exceeds the standard to strengthen turbulent contact and prolong the reaction time, combined with the concentration threshold setting decreasing along the flow direction, so that the hydrogen is deeply removed to an ultralow level. The reaction generates moisture, most of which is separated by two-stage water cooling, and then is deeply adsorbed and dried to be completely removed to an ultralow content. Finally, the gas is divided into two parts, one part is output as product gas, and the other part is completely dried reflux gas which is recycled to the initial mixing step to reduce the reaction risk of high hydrogen content.

The invention relates to the technical field of chemical engineering, and discloses a method for improving the chromaticity and purity of acetic anhydride based on a reflux ratio, and the method comprises the following steps: optimizing an evaporation tower, an acetic acid rectifying tower and an acetic anhydride rectifying tower, and installing an online detection instrument and an automatic control valve to construct an intelligent rectification control system; evaporating the crude acetic anhydride by using the optimized evaporation tower to obtain crude acetic anhydride steam; feeding the crude acetic anhydride steam into an acetic acid rectifying tower, calculating an initial reflux ratio, inputting the initial reflux ratio into a control system, and starting a reflux system to preliminarily remove acetic acid; monitoring the acetic acid content through an online gas chromatograph, and finely adjusting the reflux ratio until the reflux ratio reaches the standard when the measured acetic acid content is higher than a target value; feeding the crude acetic anhydride reaching the standard into an acetic anhydride rectifying tower, calculating an initial reflux ratio, inputting the initial reflux ratio into a control system, and starting to obtain an intermediate product; monitoring chromaticity and purity through an on-line platinum-cobalt colorimeter and an on-line gas chromatograph, and updating the reflux ratio to be qualified according to a bivariate adjustment formula; and finally, carrying out all-item detection on a finished product, and locking reflux ratio parameters after confirming that the finished product is qualified.

The utility model belongs to the technical field of production of imine products, and particularly relates to an efficient solvent distillation safety device for imine products. Comprising a distillation still, the top of the distillation still is connected with a condenser, the condenser is respectively connected with the distillation still and a solvent metering tank through a reflux ratio controller, the distillation still is provided with a temperature control device, the reflux ratio controller is connected with the distillation still through a reflux pipeline, and the reflux pipeline is provided with a sampling pipeline. And the reflux ratio controller controls the liquid flow between the distillation kettle and the condenser by adjusting the reflux ratio, and the reflux and extraction ratio can be randomly set, so that the solvent can be completely evaporated from imine products. And the reflux ratio controller is connected with a DCS (Distributed Control System) to realize automatic control. The sampling pipeline is arranged on the reflux pipeline for sampling detection, so that the percentage of the solvent in the imine product can be detected, and the distillation condition and progress can be conveniently controlled.

The application is suitable for the technical field of deep cooling nitrogen production, and particularly relates to a deep cooling air separation reflux control method and related device. The method comprises the following steps: obtaining production control data and production process data chain of air in a separation process; determining a separation condition chain based on the production control data and the production process data chain; wherein the separation condition chain is used to reflect the change degree of component data of the air under the influence of separation parameter setting corresponding to each separation process in the separation process; determining a separation control strategy based on the separation condition chain, the production process data chain and the production control data; wherein the separation control strategy comprises a first strategy for reflecting that a product with incomplete separation is washed again or a second strategy for reflecting that a product with complete separation is stored in a storage tank. The deep cooling air separation reflux control method provided by the application can improve the production efficiency of oxygen, nitrogen, argon and other production products.

The utility model discloses a reflux mechanism for high-temperature pretreatment of trace biological samples, which relates to the technical field of biological sample pretreatment, and comprises a plurality of reflux caps, a plurality of test tubes and a heater, the heater consists of a shell and a heating plate, the heating plate is provided with a group of uniformly distributed heating holes, and the reflux caps are arranged on the shell. The heating plate is a porous metal heating plate; each test tube is inserted into the corresponding heating hole, and the diameter of the outer wall of each test tube is matched with the inner diameter of the corresponding heating hole. The backflow cap made of glass replaces a traditional plug, is suitable for high-temperature reaction of trace samples, can meet the requirement for simultaneous treatment of multiple samples, is suitable for high-temperature reaction of different organic solvents at the temperature close to or higher than the boiling point temperature of the organic solvents, ensures that the samples have constant reaction solvent volume in the long-time high-temperature reaction, and improves the reaction efficiency. The high-temperature reaction effect of the solvent and a biological sample is effectively improved.

The invention discloses a reflux device and method for producing aluminum sec-butoxide, relates to the technical field of preparation of organic aluminum compounds, and aims to solve the problems that near-boiling residues are difficult to separate, the reflux efficiency is low and the improvement cost is high in the existing aluminum sec-butoxide production. The device comprises a reaction unit, an adsorption-condensation integrated separation unit, a directional reflux distribution unit and a hydrogen recovery unit, and all the units are matched with existing reaction kettles. The method comprises the steps of pretreatment, reaction reflux and post-treatment. The purity of aluminum sec-butoxide is larger than or equal to 97.5%, the conversion rate of aluminum powder is larger than or equal to 90%, the cost per ton is reduced by 1500 yuan, the transformation cost is 0.28 million yuan, and the method is suitable for low-cost transformation of small and medium-sized enterprises.

The utility model discloses a reactor for an alkaline rinsing wastewater treatment system. The reactor comprises a flocculation reaction tank; the coagulant mixing mechanism comprises a fixed cylinder arranged at the upper part of the flocculation reaction tank, and a mixing shaft is rotationally mounted in the fixed cylinder; the coagulant adding mechanism comprises a quantitative dosing pipe and a quantitative water adding pipe which are connected into the fixed cylinder; the mixing driving mechanism comprises a first metering pump for pumping and draining supernate and a return pipe, a rotating rod is transversely and rotatably mounted on the fixed barrel, one end of the rotating rod is inserted into the return pipe and is fixedly connected with a corresponding impeller, and the rotating rod is in transmission connection with the mixing shaft; the spiral water passing pipe is wound on the outer side of the fixed barrel, the water inlet end of the spiral water passing pipe is connected to the water outlet end of the sewage concentration tank, and the water outlet end of the spiral water passing pipe is connected into the flocculation reaction tank. According to the utility model, the uniform mixing of the alkaline rinsing wastewater and the coagulant can be effectively realized without power intervention.

The diphenyl carbonate reactive distillation system comprises a reactive distillation tower, a reflux pipeline, a tower top reflux tank, a first condenser, a methanol recovery system, a reflux pump, a side extraction pipeline, a side extraction pump, a buffer tank, a discharge pipeline, a tower bottom pump and a flash tank, a tower top liquid material of the reactive distillation tower enters a tower top reflux tank through a reflux pipeline, and a gas material enters a methanol recovery system after being condensed by a first condenser; controlling the reflux ratio, and refluxing the material in the tower top reflux tank; the reactive distillation column is provided with a height-adjustable side line extraction opening for extracting by-products such as anisole; and separating the reaction organisms through a flash tank to obtain diphenyl carbonate. The device integrates chemical reaction and rectification separation, methanol is separated from a material refluxed at the top of the tower, by-products such as anisole are extracted from a side line, the thermodynamic equilibrium of the reaction is broken, and the reaction is pushed to proceed in the positive direction, so that the conversion rate is increased, and meanwhile, a plurality of by-products are obtained; and the side line extraction position is adjustable, safe and convenient.

The invention discloses an indwelling needle heparin lock with an anti-backflow function, and belongs to the technical field of medical puncture tools. Comprising a main pipeline, a branch pipeline is integrally formed on the right side of the main pipeline, a main pipe cap is fixedly connected to the upper portion of the outer side wall of the main pipeline, a branch pipe cap sleeves the upper portion of the outer side wall of the branch pipeline, an extension pipe is fixedly connected to the lower surface of the main pipeline, and the interior of the extension pipe communicates with the interior of the main pipeline; the main pipeline and the branch pipeline are integrally formed, the medical duckbilled valve is arranged in the main pipeline, the stable one-way conduction effect can be achieved, liquid can smoothly pass through during infusion, the valve port is automatically closed when infusion is stopped or a blood backflow trend exists, blood backflow is fundamentally blocked, and the safety of infusion is improved. The risks of pipeline blockage, blood return pollution and infection are effectively reduced, and needle-free closed operation can be achieved in cooperation with the first silica gel diaphragm in the main pipe cap.

A rotatable, reflux distillation system is disclosed that includes a rotatable, reflux distillation column, a lower end transition pipe, an upper end transition pipe, a rotational drive assembly, and a vapor reduction system. The rotatable, reflux distillation column is angled between 10-20 degrees from horizontal, and has a lower vapor input end and an upper fluid exit end. The lower end of the reflux distillation column is operatively associated with a lower seal housing, and the upper end of the reflux distillation column is operatively associated with an upper seal housing. The lower end transition pipe is operatively associated with the lower end of the reflux distillation column and includes a lower thermocouple, while the upper end transition pipe is operatively associated with the upper end of the reflux distillation column and includes an upper thermocouple and a fluid exit gate. The rotational drive assembly rotates the reflux distillation column. The vapor reduction system reduces the vapor into condensate liquid.

The invention discloses a preparation method of solar concentrating resin. According to the method, bi-phenolic methane and dimethoxypropane are dissolved in the molar ratio being 1:(8-12), meanwhile, 8-12 ml of a catalyst is added, and the mixture is heated to the temperature of 65-70 DEG C and has a reaction at the temperature for 28-32 min; the mixture is cooled to the temperature of 60 DEG C, a first part of liquid caustic soda is slowly and dropwise added, the mixture is heated, and the reaction temperature is kept to range from 65 DEG C to 70 DEG C, reflux is performed for 2 h, the dimethoxypropane which does not react is recovered in a reduced pressure manner, the mixture is cooled to the temperature below 65 DEG C, 55-65 ml of a solvent is added, meanwhile, a second part of liquid caustic soda is dropwise added, reflux is performed for 2 h, a solvent solution turns yellow and is cooled and washed with hot water, a water layer is separated until the solvent solution is transparent, the solvent is evaporated out, and the resin is prepared. The resin has the characteristics of high concentrating property, high precision, good weather resistance, low cost and the like and can comprehensively improve the efficiency and the quality of a solar concentrating power generation system in the aspects of the optical effect, the weather resistance and the technology.

The utility model relates to reflux water-carrying reaction device technical field, and disclose a kind of for benzene ether difenoconazole cyclization safe reaction reflux water-carrying reaction device, including condenser tube, reaction kettle, heating platform and support, condenser tube and heating platform are fixedly installed on support, reaction kettle is installed on heating platform, still include water drain pipe, the water drain pipe includes layered pipe, buffer tube, connecting pipe, buffer tube is round arc, and top end is communicated with connecting pipe, bottom end is communicated with layered pipe middle, the top end of connecting pipe is communicated with condenser tube bottom end.The utility model, when using, the condensate that condenser tube is dripped is first fallen in the top of round arc buffer tube, then be sent to the middle part of layered pipe, in this way, it can avoid condensate drop when impacting organic matter floating layer, ensure that the purity of refluxing organic matter is enough, simultaneously, it can also automatically keep the liquid level of layered pipe, it is more convenient and safe to use.

The application discloses a kind of carolic acid and preparation method thereof, and specifically relates to the field of medical technology.The method comprises the following steps: stirring catalyst H2WO4 / C with hydrogen peroxide, then adding dichloro chrysanthemic acid ethyl ester; oil bath heating is carried out, reaction temperature is controlled, repeated reflux is carried out, and oxidation reaction is carried out; after the reaction, homogeneous transparent solution is filtered, extracted, and subjected to reduced pressure distillation to obtain carolic acid product.In the application, when catalyzing and oxidizing dichloro chrysanthemic acid ethyl ester, a high-activity H2WO4 / C heteropoly acid is used as a catalyst, the reaction scheme is optimized, the selectivity of the reaction is greatly improved, the number of cycles of the catalyst is increased, and after 20 cycles of the new catalyst, the catalyst activity does not decrease obviously.Furthermore, due to the great improvement of selectivity, the loss of product is reduced, and the yield is improved.

This application relates to the field of wastewater treatment technology, specifically disclosing a multi-flow stabilization control system for internal and external recirculation pump sets. It aims to solve the problem of insufficient flexibility caused by the single recirculation mode and lack of emergency control measures in existing systems. The system includes: a first and second biological tank series equipped with key variable frequency pumps, a multi-functional fluid switching network, and an intelligent stabilization module. The switching network connects the two pump series across series via interconnected pipes and valve groups; the intelligent stabilization module controls the valves and pump frequency according to real-time operating conditions, enabling flexible switching between venting, emergency water distribution, rapid recovery, and cross-recirculation modes. This application breaks through the limitations of traditional single-line operation, significantly improving the system's resilience, load-bearing capacity, and nitrogen and phosphorus removal efficiency, while reducing operating costs.

The utility model discloses an internal circulation fermentation biochemical bin with condensation and drainage functions, which comprises a main bin body, an air pipe condensation reflux device, a condenser, an air pipe II and an air pipe III which are respectively arranged at two ends of the condenser, and a fan arranged between the condenser and the air pipe III, the other end of the third air pipe is connected with a right air pipe through a right round air pipe assembly, the right air pipe is communicated with the main bin body, the second air pipe is communicated with the first air pipe, the other end of the first air pipe is connected with a left air pipe through a left round air pipe assembly, the left air pipe is communicated with the main bin body, and a water pipe is arranged on the condenser. According to the internal circulation fermentation biochemical bin with the condensation and drainage functions, the main bin body is provided with the air pipe condensation reflux device, and the air pipe condensation reflux device is hermetically communicated with the main bin body, so that condensation and drainage can be realized, and influence on fermentation is avoided.

The application discloses a method for adsorbing and separating He / N2 / CH4 mixed gas and relates to the technical field of gas separation. The adsorbing and separating method provided by the application adopts a triple reflux variable pressure adsorption process to separate the three-component gas of He / N2 / CH4 mixed gas, high-purity three kinds of product gas are obtained by reasonably setting a process time sequence and filling specific adsorbents in different bed layers, and the recovery rate is excellent. In the obtained three kinds of product gas, the purity of methane is 75-81%, the recovery rate is 80-92%, the purity of nitrogen is 90-96%, the recovery rate is 80-92%, and the purity of helium is 75-93%, and the recovery rate is 75-84%.

The utility model discloses a kind of reaction rectifying device of automatic phase separation backflow to reaction section, belong to chemical reaction and separation coupling technical field.Device is composed of reaction rectifying tower (1), heater (2), column top condenser (3), automatic phase separator (4), water phase collection tank (5), reflux ratio controller (6), feed pump A (7), feed valve A (8), feed pump B (9) and feed valve B (10), reaction rectifying tower (1) is from top to bottom in turn rectifying section (11), reaction section (12), distillation section (13), the bottom of reaction rectifying tower (1) is connected with heater (2), the top of reaction rectifying tower (1) is sequentially connected with column top condenser (3), automatic phase separator (4) by pipeline.The utility model has the advantages of simple structure, easy operation etc..

1. Name of the product in this design: Chemical Oxygen Demand Reflux Digester. 2. Application of this design: Digestion and reflux device for determining chemical oxygen demand (COD). 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The utility model relates to the technical field of glass distillation devices, in particular to an interface connecting assembly of a glass distillation device, which comprises a kettle cover and a reflux pipe, a connecting pipe for condensation and reflux is arranged at the upper end of the kettle cover, and a first ball convex opening connector is arranged at one end of the connecting pipe; compared with the prior art, the utility model has the advantages that the kettle cover adopts the spherical convex opening, the reflux elbow also adopts the spherical convex opening, and the polytetrafluoroethylene sealing gasket is additionally arranged between the two spherical convex openings, so that the reflux efficiency of the condensed liquid solvent is higher, and the problem that the reflux efficiency is low due to the fact that the kettle cover adopts the spherical concave opening in the traditional interface connection mode is solved. According to the present invention, the reflux elbow adopts the ball opening convex opening manner, such that the condensed liquid solvent flows into the kettle along the glass wall after passing through the spherical surface concave opening of the kettle cover during the reflux so as to cause the secondary reaction returning to the interior of the kettle body to have a certain hysteresis; therefore, the practicability of the interface connecting assembly can be greatly improved.

The utility model belongs to the technical field of medical instruments, and particularly relates to a digestive endoscope anti-reflux water supply pipe with a light supplementing function, which comprises a hose, a one-way valve is mounted at one end of the hose, a spray head is mounted at one end of the one-way valve, a water guide cavity is arranged in the spray head, arc-shaped water outlet holes are symmetrically formed in one end of the inner wall of the water guide cavity, and a water outlet is formed in the other end of the inner wall of the water guide cavity. A storage cavity is formed in the middle of one end of the spray head, an illuminating lamp is clamped and mounted in the storage cavity, and a power supply wire is mounted on one side of the outer wall of the illuminating lamp. The anti-reflux water supply pipe for the digestive endoscope is composed of the hose, the one-way valve and the spray head, the phenomenon of reflux can be avoided by using the one-way valve, and light can be supplemented to a detection area by using the illuminating lamp installed in the spray head, so that the endoscope can conveniently detect the area.

The invention relates to an esophagus anti-reflux device and a using method, and belongs to the technical field of medical supplies, the esophagus anti-reflux device comprises an anti-reflux film bag, a supporting tube, a lifting line and a capsule, the supporting tube is arranged at a bag opening of the anti-reflux film bag, a crack is formed in the bottom of the anti-reflux film bag, a connecting line is arranged on the supporting tube, and the lifting line is connected with the capsule. The lifting line is connected to the connecting line in a penetrating mode, the anti-reflux film bag, the supporting tube and the connecting line are all wrapped in the capsule, warm water is used for feeding the esophagus anti-reflux device into the stomach, the end of the lifting line is reserved outside the mouth, after standing for one hour, the capsule is degraded in the stomach, the supporting tube is completely unfolded, and the lifting line is lifted upwards to enable the supporting tube to enter the esophagus and be supported on the esophagus wall. By the adoption of the structure, the anti-reflux film bag is fixed in the esophagus through the supporting pipe, the crack formed in the bottom has the anti-reflux effect that feeding can be conducted in one direction and cannot pass through in the reverse direction, and the esophagus anti-reflux device is simple in structure and easy and convenient to operate.

The utility model belongs to the technical field of chemistry, and particularly relates to a heating reflux water bath device which comprises a digital display constant-temperature water bath kettle, a condenser pipe fixing support, a concave fixing block and a rubber band. According to the heating reflux water bath device provided by the utility model, the condenser pipe fixing device and the water bath kettle are integrated, the condenser pipe can be fixed by only one rubber band, the disassembly can be realized by only tearing the rubber band, the water bath kettle does not need to be moved, and the heating reflux water bath device has the advantages of simplicity and convenience in operation, high safety and low cost.

The utility model relates to a pharmaceutical water preparation device and a pharmaceutical system, a liquid storage module is provided with a liquid storage cavity, a liquid outlet and a reflux inlet which communicate with one another, and the liquid storage cavity is used for storing liquid; the heating module and the sterilizing module are both communicated with the liquid storage cavity; one end of the first pipeline is communicated with the liquid outlet, and the other end of the first pipeline is communicated with the reflux inlet; the water production module is arranged on the first pipeline and is provided with a water production port; the water production port is communicated with the first pipeline and is provided with a first flow control piece; the flushing and discharging module is arranged on the first pipeline and provided with a flushing and discharging port, and the flushing and discharging port is communicated with the first pipeline and provided with a second flow control piece. Compared with the prior art, the pharmaceutical water preparation device can ensure that the quality of the produced pharmaceutical water reaches the standard, and the pharmaceutical qualification rate of a pharmaceutical system is improved.

The preparation method of the fluorescent probe (S) comprises the following steps: adding absolute ethyl alcohol into p-phenylenediamine, refluxing and dissolving the solution (solution A) while heating at 80 DEG C, dissolving salicylaldehyde into a proper amount of absolute ethyl alcohol (solution B), dropwise adding the solution B into the solution A, and stirring to obtain a mixed solution; heating reflux is kept at 80 DEG C in the whole process, stirring is continuously carried out, and after reflux is carried out for 2 hours, filtering is carried out to obtain a faint yellow solid, namely the fluorescent probe (S). The fluorescent probe can specifically recognize hydrogen sulfide (H2S) under the interference of common ions, is strong in anti-interference capability and high in sensitivity, and can be used for real-time monitoring and fluorescence imaging of endogenous H2S of cells and mouse tumors.

The utility model relates to the technical field of rectification and purification, and discloses a reflux device for rectification and purification of methyl isobutyl ketone, which comprises a support frame, a rectification tower is fixedly connected to the middle of the top wall of the support frame, a reflux pump is fixedly connected to the top of the outer wall of the rectification tower, and the other end of the reflux pump is communicated with a condenser. The condenser is fixedly connected to the rear side of the outer wall of the rectifying tower, the flow control system is fixedly connected to the bottom of the outer wall of the connecting pipe, and a closing mechanism is arranged in the middle of the inner wall of the supporting frame and used for preventing a backflow valve. According to the methyl isobutyl ketone rectifying and purifying device, methyl isobutyl ketone mixed liquid is heated in the rectifying tower, low-boiling-point components are vaporized and rise, high-boiling-point impurities are left at the bottom of the tower and pumped to the condenser through the reflux pump, liquid enters the reflux tank through the conveying pipe, condensate is stored in the reflux tank, and stable operation and cooperative work of the device are ensured through the supporting frame so as to rectify and purify methyl isobutyl ketone.

The utility model discloses a solid-liquid extraction device in the technical field of extraction. The device comprises a condenser pipe, a rectifying tower, an extraction cavity and a solvent boiling bottle which are sequentially connected and communicated from top to bottom, and a plurality of layers of gas-liquid distribution elements for expanding the superficial area of gas-liquid exchange are arranged in the rectifying tower. The extraction device disclosed by the utility model has the advantages that the extraction device and the rectifying tower can exchange heat with reflux liquid through rising steam, the reflux liquid can be continuously heated to be close to a boiling point, the temperature consistency of the reflux liquid flowing back to the extraction cavity can be greatly guaranteed, the temperature in the extraction cavity is increased, and the extraction efficiency is greatly improved.

The utility model discloses a condensation reflux device for rectification and purification of an environment-friendly rubber additive, which comprises a rectification tank, the top of the rectification tank is communicated with a spiral condensation pipe, the right end of the spiral condensation pipe is communicated with a collecting box, the right side of the collecting box is provided with a collecting tank, the spiral condensation pipe is sleeved with a cooling jacket, and the cooling jacket is provided with a water inlet and a water outlet. And the left side of the top of the cooling jacket communicates with a liquid inlet pipe, and an inner sheath is installed in the cooling jacket and located in the spiral condensation pipe in an attached mode. Through the design of the spiral condenser pipe, the flow path and the retention time of steam in the condenser pipe are greatly increased, and the contact time of the steam and a cooling medium is prolonged when the steam flows in a spiral channel, so that heat exchange can be more fully carried out, and the condensation efficiency is effectively improved; therefore, the environment-friendly rubber additive steam can be cooled into liquid more quickly and more thoroughly, and a good foundation is provided for subsequent purification and collection.

The utility model discloses an alkali-washed tail gas absorption device which comprises a tail gas pipeline, a tail gas valve is arranged on the top of the tail gas pipeline close to the edge of one end, one end of the tail gas pipeline is connected with a condenser, and the center line of the bottom of the condenser is communicated with a backflow pipeline. A sight glass is embedded in the center of the front surface of the backflow pipeline, a backflow valve is arranged at the position, close to the bottom of the sight glass, of the outer surface of one side of the backflow pipeline, the bottom end of the backflow pipeline is connected with a recycling tank, and the position, close to the top edge, of the outer surface of one side of the backflow pipeline communicates with a gas conveying pipe; and one end of the gas conveying pipe is connected with a filter box. According to the utility model, the gas generated after alkali washing flows through the condenser, so that material residues in the gas can be better liquefied to generate liquid, and the liquid flows back to the inside of the recovery tank through the return pipe, thereby greatly reducing the volatilization of bromoalkane, improving the efficiency and improving the environment.