369results about "Vapor condensation" patented technology

The utility model relates to distillation condensing device technical field discloses a kind of novel high-efficiency crude distillation condensing device, including distillation kettle, the distillation kettle is hollow cavity, bottom is provided with heating mechanism, top is communicated steam outlet, spiral condenser tube, the spiral condenser tube is connected with steam outlet, collector, the collector is communicated with spiral condenser tube outlet, for receiving condensate, temperature sensor, the temperature sensor is installed at steam outlet, vacuum pump, the vacuum pump is communicated with the top of distillation kettle by connecting pipe, cooling water circulation system, the cooling water circulation system includes cooling water tank and circulating pump. In the utility model, through the heat exchange structure of spiral condenser tube and double-layer spiral cooling jacket, cooperate the negative pressure distillation design of vacuum pump, effectively reduce liquid boiling point and increase condensing area, significantly improve distillation efficiency and energy utilization rate, while distillation kettle inner wall hydrophobic coating reduces liquid adhesion, further optimizes distillation process.

The utility model discloses a kind of wet-process phosphoric acid purification devices, it relates to wet-process phosphoric acid purification technical field, the device includes frame body and the mixing box being set on frame body, mixing box is provided with liquid inlet pipe being communicated with its own inside, stirring mechanism is provided in mixing box;Frame body is also provided with at least one group of distillation mechanism, and the distillation chamber of distillation mechanism is communicated with mixing box by sedimentation pipe;After phosphoric acid and solvent are fully mixed in mixing box, the liquid formed flows into sedimentation pipe and is deposited, then flows into the distillation chamber of distillation mechanism and is distilled. By installing mixing box, sedimentation pipe and distillation mechanism on frame body, the stirring mechanism installed in mixing box can quickly mix phosphoric acid and the solvent for removing impurities in phosphoric acid, then is discharged into sedimentation pipe and is deposited, finally, the phosphoric acid liquid after deposition flows into distillation chamber and is rapidly distilled, then is condensed, to obtain phosphoric acid liquid after extraction purification.

This application discloses an integrated method and system for the co-production of MTO methanol and refined methanol, belonging to the field of chemical technology. The co-production method provided by this application includes: feeding crude methanol into a light-duty removal distillation column for pre-distillation treatment to obtain a pre-distillation column bottom component; dividing the pre-distillation column bottom component into two streams, one as the output of MTO methanol and the other as a reprocessed component of the pre-distillation column bottom; feeding the reprocessed component of the pre-distillation column bottom into a refined methanol distillation column for distillation treatment to obtain a distillation column top component and a distillation column bottom component; at least a portion of the distillation column top component is output as refined methanol, and the distillation column bottom component is returned to the light-duty removal distillation column. This application achieves the co-production of refined methanol using only two columns, eliminating the need for additional independent equipment, significantly reducing equipment investment costs, and enabling flexible adjustment of both MTO methanol and refined methanol products, thus possessing broad application prospects in the industrial-grade MTO methanol field.

The utility model relates to a pure dew and natural fragrance integration preparation technical field discloses a pure dew and natural fragrance integration preparation device, including heating base and distillation component, still including valve component, pipeline component, condensing component, separation box, water outlet pipe, distillation component can place on heating base, water outlet pipe sets up on separation box, the utility model discloses, when distillation, if want to prepare pure dew, can rotate the rotating ring clockwise, make steam enter between outer tube and inner tube, steam can be condensed to semiconductor refrigeration piece to the steam and separates pure dew and essential oil through separation box to pure dew and exports from water outlet pipe, completes the preparation of pure dew, if want to prepare incense, can rotate the rotating ring counterclockwise, make steam enter in the inner tube, and steam does not pass through essential oil separation and directly collects, can prepare incense, and the device can prepare pure dew also can prepare natural incense, can satisfy different preparation demand.

This invention relates to a solar-powered evaporative seawater desalination device, belonging to the technical field of seawater desalination equipment. It includes a main frame, modular evaporation components, a condensation and collection component, a liquid supply circulation system, and a fixing support. The modular evaporation component includes at least two parallel, spaced-apart evaporation units, with adjacent units connected and fixed by multiple Z-shaped spacers, forming airflow channels between adjacent units. Each evaporation unit has a three-layer composite structure, comprising a light-transmitting substrate, a photothermal conversion layer, and a water supply layer. The condensation and collection component is located at the top of the main frame and is used to condense water vapor from the modular evaporation components and collect fresh water. The liquid supply circulation system is connected to the water supply layer of the evaporation units and is used to supply liquid to the water supply layer and recover unevaporated liquid from the evaporation units. Through the three-layer composite evaporation unit and the airflow channels formed by the Z-shaped spacers, the solar energy utilization efficiency is increased to 55%, and the freshwater output is improved.

The present application belongs to the field of chemical production, and particularly relates to a chloromethane cooling and recycling system and a chloromethane cooling and recycling method. The chloromethane cooling and recycling system comprises a first condenser, a second condenser, a third condenser and a chloromethane recycling tank. The shell side inlet of the second condenser is connected with the tube side outlet of the third condenser, and the tube side inlet of the third condenser is used for passing in liquid chloromethane. The present application uses the vaporization endothermic principle of liquid chloromethane to cool and recycle chloromethane, and is good in economy. Moreover, since the to-be-cooled substance and the refrigerant are both chloromethane, even if mutual leakage occurs in the heat exchange process, the quality of the recycled chloromethane will not be affected and the loss of raw materials will not be caused.

The utility model relates to the technical field of condensation recovery, and discloses a condensation recovery device of a nitriding furnace distillation retort, which comprises a reaction furnace with an open bottom and fixed in the air, a sealing bottom cover arranged right below the reaction furnace, a lifting module arranged below the sealing bottom cover, and a uniform air supply structure arranged in the reaction furnace, ammonia gas, hydrogen and other gases are respectively fed into the reaction furnace through the uniform air supply structure; the condensation shunting structure comprises a condensation chamber, is arranged above the reaction furnace and is connected with the reaction furnace through an exhaust pipe, waste gas is converted into hydrogen and ammonia water through the condensation shunting structure, and the hydrogen is recycled; the decomposition and diversion structure comprises a decomposition chamber arranged on one side of the reaction furnace, the top of the decomposition chamber is connected with the condensation chamber through a flow guide pipe, ammonia water is decomposed into ammonia gas and water in the decomposition chamber, and the ammonia gas is recycled. Compared with the prior art, the device disclosed by the utility model has the advantages that the condensation shunting structure is arranged, so that waste gas can be condensed, ammonia water is prevented from flowing back, and hydrogen and ammonia gas are recycled.

The application discloses a dichloromethane recovery device and method in a lithium battery diaphragm production process, and belongs to the technical field of lithium battery diaphragm production. The application comprises a box body and a fan arranged at the inlet of the box body, a condenser and a heater are arranged in the box body, and a liquid collecting groove is arranged at the bottom of the box body. The condenser is arranged in multiple groups along the flow direction of dichloromethane, and baffles are arranged between adjacent condensers, the baffles are arranged in an upper and lower staggered mode in sequence, and a wire mesh demister is arranged above the liquid collecting groove. The dichloromethane recovery device of the application is used for the dichloromethane discharged from a drying box, the dichloromethane is first condensed by the condenser and then flows into the liquid collecting groove, the dichloromethane which is not condensed is heated by the heater and then returned to the drying box, the utilization rate of dichloromethane is improved, the concentration of dichloromethane is reduced, and the treatment cost is reduced.

The gas-liquid separator for compressed air provided by this utility model includes a tank body, an exhaust pipe, and a swirl vane device. The tank body includes a cylindrical tank body, an elliptical end cap connected to the top of the tank body, and a sealing plate connected to the bottom of the tank body. The tank body is provided with an air inlet and an exhaust outlet. The exhaust pipe is located inside the tank body, with its upper end connected to the exhaust outlet and its lower end extending downward and coaxial with the tank body to form a straight pipe section. The swirl vane device is sleeved on the upper end of the straight pipe section and is lower than the air inlet. By sleeved with an elliptical guide shroud on the straight pipe section, which is located below the swirl vane device and higher than the lower end of the straight pipe section, and a cooling coil for cooling is set between the elliptical guide shroud and the straight pipe section, the inlet and outlet ends of the cooling coil penetrate the tank body and extend outward. This not only utilizes the guiding effect of the elliptical guide shroud to prevent liquid water from being re-entrained into the exhaust pipe by the airflow, but also enables water vapor condensation through the cooling coil, thereby improving the gas-liquid separation rate and reducing the temperature of the compressed air, making it suitable for subsequent use.

The utility model relates to carbon dioxide manufacturing technical field provides a kind of for carbon dioxide production's adsorption tower drying system to handle original carbon dioxide gas, and original carbon dioxide gas refers to the gas with moisture and alcohol after not passing through pre rectification tower rectification treatment, including the first adsorption tower and second adsorption tower of the first heating regeneration component, second heating regeneration component being set respectively, first adsorption tower and second adsorption tower are connected in parallel between liquefier and pre rectification tower;First heating regeneration component and second heating regeneration component all include the molecular sieve of array setting and adsorbent fixed between adjacent molecular sieve, and the heating regeneration process in first adsorption tower and second adsorption tower is independent of each other.The utility model is according to the process of " one open one spare " independent participation handles original carbon dioxide gas, and alcohol removal water in a adsorption tower, not only simplify the treatment process before carbon dioxide gas liquefaction, and improve the alcohol removal efficiency of adsorption tower.

A system for capturing a target condensable gas may include: a supersonic condensation nozzle configured to receive a gas flow having a target condensable gas content, and for accelerating said gas into a supersonic gas flow, at least one particle injector in the supersonic nozzle for injecting particles for the particles to be in the supersonic gas flow, whereby target gas condensate forms onto some of the particles, an expansion device defining a conduit having a convex corner causing the flow of the particles with target gas condensate to generate expansion waves to separate the flow into a first flow path having an increased concentration of particles with target gas condensate thereon and into a second flow path of gas with lowered target condensable gas content, and a divider having at least a first conduit, the divider configured to collect the first flow path.

The utility model discloses a kind of condensing type oil-removing plastic dryers, including base, material cylinder, fan, heater and cyclone condenser are equipped on base, inlet pipe and outlet pipe are equipped on material cylinder, the output end of heater is connected with inlet pipe, the input end of heater is connected with the output end of fan, the input end of fan is connected with the output end of cyclone condenser, the input end of cyclone condenser is connected with outlet pipe;Cyclone condenser includes shell, spiral condensing tube is equipped in shell, spiral condensing tube is connected with water chiller, outlet pipe is connected with the inner chamber of shell, the upper end of shell is equipped with air outlet pipe, one end of air outlet pipe is connected with the input end of fan, the lower end of shell is equipped with liquid outlet.The utility model can separate oil and gas in oil-gas mixture by cyclone condenser, avoid oil stain into fan, heater and other components, thereby prolong the service life of plastic dryer;Reduce the number of disassembly and cleaning, improve injection molding processing efficiency.

The utility model relates to vulcanized isobutene production technical field, specifically is a kind of vulcanized isobutene production sulfur-containing wastewater recycling system, the bottom of high-pressure reaction kettle is connected with first conveying pipe respectively by tee joint, the first conveying pipe is connected with first dechlorination kettle, the first dechlorination kettle bottom discharge end is connected with second conveying pipe respectively by tee joint, the second conveying pipe is connected with second dechlorination kettle, the second dechlorination kettle bottom is connected with third conveying pipe respectively by tee joint, the third conveying pipe is connected with wastewater transfer tank, the wastewater transfer tank discharge end is connected with the first dechlorination kettle by circulation pipe.The utility model is dechlorinated by setting two dechlorination kettle, sodium sulfide can replace the chlorine that is not replaced in primary dechlorination reaction when secondary dechlorination, sulfur-containing wastewater is collected using wastewater transfer tank, then it is recycled to the next batch primary dechlorination reaction, realize the recycling of sulfur-containing wastewater, can reduce the wastewater treatment pressure of producer.

The utility model relates to solvent recovery equipment technical field especially, is used for cellulose ether production's solvent recovery unit, including the body, still include distillation device, stirring device, condensation collection device and filter device, distillation device installs on the body, stirring device installs on the body and distillation device, condensation collection device and filter device all install on distillation device, the body provides support, and distillation device carries out the filling and heating to solvent, and stirring device carries out the stirring to solvent, and condensation collection device carries out the condensation separation storage to solvent steam, and filter device carries out the filtration treatment to the solvent that enters the machine, and it carries out secondary classification filtration to solvent through setting filter device, reduces the impurity number that enters the machine, and carries out secondary classification distillation separation recovery to solvent through setting distillation device and condensation collection device cooperation, improves separation rate to improve recovery efficiency.

The utility model discloses tailings production device for waste mineral oil resource utilization, specifically related to tailings production device technical field, including filter screen subassembly, centrifugal mechanism, distillation subassembly and cooling assembly, the centrifugal mechanism is installed below filter screen subassembly, and the side of centrifugal mechanism is installed with distillation subassembly, and the side that distillation subassembly is away from centrifugal mechanism is installed with cooling assembly, and it carries out centrifugation to the waste mineral oil that has removed solid impurity through centrifugal mechanism, makes mineral oil and liquid colloidal impurity in mineral oil and the tiny particle that has not been removed completely in filter screen subassembly carry out second separation, to guarantee mineral oil when carrying out distillation through distillation subassembly, the impurity in mineral oil is extremely low, and makes the purity of different kinds of mineral oil that are extracted to be guaranteed.

This utility model belongs to the field of trimethylamine removal technology, specifically relating to a trimethylamine removal device, including a deamination tower bottom liquid cooler, a deamination tower reboiler, and a deamination tower condenser. The deamination tower reboiler and condenser are both connected to the deamination tower bottom liquid cooler via pipelines. A pressure relief pipe is connected to the deamination tower bottom liquid cooler, and a connecting nozzle is threaded onto the inner side of the upper opening of the pressure relief pipe. A pressure relief port is fixedly connected to the top of the connecting nozzle. By setting up the deamination tower bottom liquid cooler, reboiler, and condenser, online removal of trimethylamine is achieved. The pressure relief pipe on the deamination tower bottom liquid cooler utilizes a coordinated design of a tapered tube, elastic band, and plug to achieve rapid pressure relief of the trimethylamine gas. When the pressure inside the tower exceeds a threshold, the gas pushes open the plug to release pressure. After the pressure decreases, the elastic band automatically pulls back the plug to seal, requiring no manual intervention.

This invention relates to a high-content EPA / DHA product separation and purification device, belonging to the field of extraction and purification equipment technology. It includes a distillation cylinder with a heating jacket inside. A film-forming mechanism is located at the upper end of the cylinder's inner cavity, utilizing a preheated liquid jet to form an atomized liquid film skirt, which, in conjunction with the heating jacket, heats the raw material. An inclined guide plate is located at the lower end of the cylinder's inner cavity, with multiple through holes arranged in a ring array. Above the guide plate is a heavy phase collection area, with a heavy phase discharge pipe on one side. Below the guide plate is a light phase collection area, with a light phase discharge pipe on one side. A condensation mechanism is installed inside the distillation cylinder. This solution solves the problem that direct heating of the raw material can lead to a slow boiling point, resulting in impurities contaminating the EPA / DHA and affecting its purity.

The utility model relates to tail gas purification recycling technical field, concretely for PBT production tail gas purification recycling equipment, including air inlet pipe, condensing component, air outlet pipe and collection component, the condensing component includes condensing box, the inside one end position department of condensing box is provided with first hose, one end of first hose is provided with heat exchange component, one side of heat exchange component is provided with second hose, the inside one end of condensing box is provided with first spring, the inside other end of condensing box is provided with second spring. The utility model discloses through heat exchange component to PBT production tail gas condensation, and heat exchange component shakes in the inside of condensing box in the condensation process, improves the export speed of condensate, avoids the impurity adhesion heat exchange component's inner wall, improves the cooling efficiency, separates through the hydrophobic air permeable net after condensation, filters the impurity in the gas after condensation through activated carbon filter block, is favorable to the completeness of PBT production tail gas recovery.

The present application relates to water pollution control and treatment technical field, specifically to a kind of evaporation treatment equipment suitable for ammonium chloride high-salt wastewater, including evaporator, and evaporator includes shell and multiple heat exchange parts in shell.The heat exchange part includes partition and multiple heat exchange pipes, and the heat exchange pipe includes upper pipe, middle pipe and lower pipe which are sequentially arranged in vertical direction, and the upper pipe is installed on the partition, and the middle pipe is respectively connected with the upper pipe and the lower pipe ball hinge.A kind of evaporation treatment equipment suitable for ammonium chloride high-salt wastewater of the present application utilizes the length change of middle pipe of heat exchange pipe in vertical direction after rotation, dynamically compensates the problem of empty pipe caused by liquid level drop, prolongs the effective heat exchange time of upper pipe, shortens the empty pipe dry burning time, avoids the occurrence of large-area empty pipe dry burning situation, reduces the damage of high-temperature steam to heat exchange pipe, prolongs the service life of heat exchange pipe, enhances the stability of ammonium chloride high-salt wastewater evaporation treatment equipment, and helps the progress of water pollution control and treatment work.

The present application relates to the chemical industry field, disclose a kind of reaction system and reaction method, reaction system includes the reaction kettle, rectifying column, cooler, liquid separator tank and product tank connected in sequence, reaction kettle includes closed kettle body, kettle body has reaction zone, the blocking plate is arranged in the kettle body of upper portion of this reaction zone, the gas hole for gas passing is opened in the blocking plate, product tank is installed with local liquid level display meter, the reaction kettle in the reaction system provided by the present application is closed kettle body, it is favorable to improve the security of reaction, and kettle body is equipped with blocking plate, when reaction raw material sublimes, it is condensed into snowflake when ascending to kettle upper portion region, the raw material condensed after sublimation can be blocked by blocking plate, avoid its plugging kettle top pipeline, simultaneously gas phase can be exported in time by rectifying column, cooler, liquid separator tank and stored in product tank, by real-time acquisition the amount of liquid phase product in product tank, conversion rate can be calculated and obtained.

The application discloses a kind of for mixed cresol separation continuous amplification production process and method, belong to mixed cresol separation and purification field.This process solves the problem of low flow, difficult to control, temperature-resistant equipment selection difficult in early stage working condition exploration, proposes the design concept of "breathing mouth".Further, a kind of "exogenous" online detection system can effectively avoid the influence of analysis results due to excessive flow temperature, excessive pressure, high concentration, reduce the complexity of structure design;For the problem of large amount of desorbent, an efficient desorbent extraction system is proposed, which can realize efficient recovery of desorbent and separation and purification of m-cresol product.The process and method are scientific and reasonable, and can realize continuous production, and have important role in mixed cresol separation amplification production.At the same time, it also has wide applicability in other chemical amplification production, separation and purification fields.

An automated maintenance system for solar components is disclosed. The system includes a condensate reservoir, a wiping element, a motor, and a fluid delivery element. The fluid delivery element is configured to transport a fluid from the condensate reservoir to a solar component, and the motor is configured to operate the wiping element via a controller. The system is designed to clean solar components automatically, without the need for manual intervention. The system is efficient, cost- effective, and environmentally friendly.

This utility model discloses a multi-stage filtration-type condensation and collection device, belonging to the field of condensation technology. It includes a frame, and further comprises a condensation device, a conveying device, and a filtering device. The condensation device is installed on the left side of the frame, the conveying device is installed below the condensation device, and the filtering device is installed below the conveying device. The condensation device includes an outer shell, an outer condensation pipe, a first discharge port, a middle shell, and a right-side inlet. The outer shell is fixedly installed on the left side of the frame, and an air inlet is fixedly installed on the left side of the outer shell. The outer condensation pipe is fixedly installed inside the outer shell, and its inlet end penetrates the outer shell and is fixedly installed on the left side of the outer shell. The first discharge port is fixedly installed below the outer shell, and the middle shell is fixedly installed inside the outer shell. Through this method, this utility model can perform multiple, temperature-decreasing condensation of mixed gases and allows for quick, one-step filter replacement.

This utility model relates to the field of condenser technology, specifically a tower top condenser, including a shell and further comprising: condenser tubes, wherein multiple condenser tubes are disposed within the shell, and each condenser tube is U-shaped; and a diffusion unit, wherein the diffusion unit is disposed within the shell and comprises a ring and a driving component, the driving component driving the ring to reciprocate linearly, thereby diffusing the input gas; the diffusion unit includes a ring slidably disposed within the shell, a limiting rod fixedly connected within the shell, the limiting rod slidingly inserted into the ring, and a driving component disposed within the shell for driving the ring to move. This tower top condenser, by incorporating the diffusion unit, can agitate and diffuse the gas input into the condenser, ensuring uniform condensation and preventing the gas phase from failing to diffuse evenly within the condenser, thus avoiding the problem of reduced condensation efficiency.

The utility model discloses a rectifying tower externally connected with an esterification kettle, relates to the technical field of reaction kettles, and solves the problems that pipelines are connected with the esterification kettle and the rectifying tower through flanges, the disassembly is complicated, the efficiency is low, the production schedule is seriously influenced, and the actual requirements of efficient chemical production are difficult to meet. And inlet and outlet pipes communicated with the esterification kettle and one side of the rectifying tower are fixed at the bottom of the esterification kettle and one side of the rectifying tower. Through the design of the connecting assembly, the pipeline between the esterification kettle and the rectifying tower can be quickly dismounted and mounted. The pull rod is pulled to drive the moving rod to move, so that the moving rod is far away from the inlet and outlet pipe and the compression spring, and the connecting assembly can be disassembled by moving the fixed pipe downwards, thereby quickly disassembling and transversely cleaning the pipeline, effectively preventing scaling on the inner wall of the pipeline from influencing the flow rate, prolonging the service life of the pipeline, and avoiding the problem of tedious disassembly of traditional flange connection. And the production efficiency is greatly improved, and efficient chemical production requirements are met.

The application relates to a temperature-controllable air drying device, and belongs to the technical field of cold dryers. The temperature-controllable air drying device comprises an air compressor, a pretreatment mechanism, a heat exchange dehydration container arranged at an output end of the pretreatment mechanism and a refrigeration defrosting mechanism, the pretreatment mechanism comprises a pretreatment shell, a pretreatment pipeline arranged in the pretreatment shell, a first separator arranged at an output port of the pretreatment shell and a cooling tower for treating circulating water. The application has the effects of improving air drying efficiency and prolonging the service life of a pneumatic device.

The utility model provides a mobile engineering machinery vehicle hydraulic oil purification device, including the car body and setting on the car body coarse filter, fine filter, vacuum tank, motor oil pump group and electric control cabinet, is provided with walking wheel in the bottom surface four corners of car body, and the oil inlet of coarse filter is connected through the connecting pipe with hydraulic oil tank, is provided with the oil inlet valve on connecting pipe, and the oil outlet of coarse filter is connected with heater through pipeline, and heater, vacuum tank and condenser are connected in proper order through pipeline, and vacuum tank is connected with vacuum pump, and the oil outlet of this vacuum tank is connected with fine filter through pipeline and motor oil pump group, and the oil outlet of fine filter is connected with oil storage jar, and the bottom of condenser is provided with the drain valve, and its top is provided with the condensing pipe, the utility model discloses can filter out the impurity in the hydraulic oil through setting filter on the movable car body, guarantees the filtering effect simultaneously through the cooperation of heater, vacuum tank and condenser to remove the moisture in the hydraulic oil.

An oil-removal plant for removing oil from metal chips of non-ferrous materials comprises a container of such chips and a container for the recovered oil; the chips container cooperates with a magnetic field generator member, one of such container and said generator member being rotary so as to enable the generation of a rotary magnetic field which impacts and passes through the chips heating them, the oil evaporating from the chips and being subsequently condensed and recovered in then oil container. A method for removing oil from chips is also described and claimed herein.

The utility model relates to condensing equipment field, concretely relates to a tar residue pyrolysis gas condensing separation device, including a plurality of shell, the upper and lower both ends of shell are provided with the outlet pipe and the inlet pipe, the outlet pipe and the inlet pipe between adjacent shell adopt the connection of conveying pipe, the inside of shell is provided with the outlet box and the inlet box, the outlet box and the inlet box are connected with the outlet pipe and the inlet pipe respectively, a plurality of gas pipes are vertically arranged between the outlet box and the inlet box, the shell is filled with heat -conducting oil, the shell is provided with electric heating unit, the outlet pipe on the outside of shell is provided with first branch pipe, first branch pipe and outlet pipe all are provided with first valve, the inlet box is provided with the liquid collection pipe extending to the outside of shell, the liquid collection pipe is provided with second valve, the bracket is provided in the outlet box, a plurality of downward nozzles are arranged on the bracket. The utility model has the effect that the inside of condenser can be cleaned, and the good heat exchange performance of condenser can be maintained.

The present application relates to the field of chemical production, especially to a kind of energy-saving condensing device for chemical production.The technical problem is that the contact time of steam and condensing coil is short, and volatile oil and precipitated solids will adhere to the outer wall of condensing tube.The technical scheme of the present application is: a kind of energy-saving condensing device for chemical production, comprising base, cylinder and condensing tube;the base is fixedly connected with the cylinder;the spiral condensing tube is fixedly connected in the cylinder;it also includes inner cylinder and guide plate;the inner cylinder is fixedly connected in the cylinder;the guide plate is fixedly connected with the inner wall of the cylinder, and the cross section of the guide plate is inclinedly arranged with the inner side lower than the outer side.The steam close to the inner wall of the cylinder flows spirally downward along the outer wall of the condensing tube by the guide plate arranged synchronously with the condensing tube, so as to slow down the downward flow rate of steam, and prolong the contact time of steam and condensing tube.