Organic synthesis vapor recovery device

Abstract

The application provides an organic synthesis steam recovery device and relates to the technical field of steam recovery.The device comprises a steam recovery tank and an air floatation separation tank arranged in the steam recovery tank, the steam recovery tank is internally provided with a spiral cold water pipe and a spiral partition plate, the air floatation separation tank is internally provided with an organic matter separation pipe and a gas overflow port provided with a gas diffusing plate, steam enters from a steam inlet, and then is countercurrently convected and condensed along the spiral partition plate and the spiral cold water pipe, condensed water and uncondensed gas enter the air floatation separation tank after being refined into bubbles by the gas diffusing plate, and through secondary condensation and air floatation during the rising process of the bubbles, organic matter impurities and pure condensed water are separated, compared with a traditional device, the application solves the problems of insufficient condensation, difficult impurity separation and loose structure, has the advantages of complete heat energy recovery, accurate organic matter separation and stable and compact operation, and is suitable for efficient treatment and resource recycling of high-temperature steam containing impurities in the organic synthesis industry.

Description

Technical Field

[0001] This invention relates to the field of steam recovery technology, and more particularly to an organic synthesis steam recovery device. Background Technology

[0002] In the organic synthesis industry, chemical reactions, distillation, evaporation and other processes generate a large amount of high-temperature steam carrying organic matter. This steam not only contains a large amount of recyclable latent heat, but the organic matter it contains is also an important chemical raw material or potential pollutant. Efficiently recovering the heat, moisture and organic matter in the steam can not only reduce energy consumption and save costs in the production process, but is also a key link in reducing volatile organic compound emissions and meeting environmental regulations.

[0003] Currently, conventional steam recovery devices, such as shell-and-tube condensers and plate heat exchangers, struggle to separate organic impurities when processing organic synthesis steam. The condensate formed after the organic synthesis steam is condensed often contains trace amounts of suspended solids, oily organic matter, or slightly soluble impurities. Traditional devices lack a targeted flotation separation stage and rely solely on gravity settling or simple filtration, which cannot effectively remove organic particles with a density close to that of water and a small particle size. This results in high turbidity and excessive organic matter content in the recovered condensate, making it difficult to directly reuse in processes with high water quality requirements and often necessitating additional water treatment costs. Summary of the Invention

[0004] The purpose of this invention is to provide an organic synthesis steam recovery device to solve the problem mentioned in the background that traditional steam recovery devices are difficult to separate organic impurities when processing organic synthesis steam.

[0005] To solve the above-mentioned technical problems, the present invention adopts an organic synthesis steam recovery device, comprising: a steam recovery tank as the main cavity for steam condensation, providing a space for heat exchange between steam and cooling water, the internal structural design of which directly affects the condensation efficiency; an air flotation separator nested inside the steam recovery tank, used for deep air flotation separation of the gas-liquid mixture after primary condensation, achieving secondary separation of organic impurities from pure condensate; the air flotation separator is located inside the steam recovery tank, and the spatial nesting design shortens the gas-liquid transmission path and reduces energy loss; a water inlet is provided on one side of the steam recovery tank for the input of cooling water, providing a continuous supply to the spiral cooling water pipe. The cooling source is a spiral chilled water pipe connected to the inlet. The spiral structure extends the flow path of the cooling water and increases the contact area with the steam. The spiral chilled water pipe is located between the steam recovery tank and the air flotation separator, and is arranged using the annular gap space to maximize the utilization of the tank volume. An outlet is opened on the other side of the steam recovery tank for discharging the cooled water after heat exchange, forming a convective circulation with the inlet. The outlet is connected to the upper end of the spiral chilled water pipe to ensure that the cooling water flows from bottom to top, forming a counter-current heat exchange with the steam flowing from top to bottom. A steam inlet is set on one side of the steam recovery tank as the inlet for organic synthesis waste gas steam. The location design affects the initial flow path of the steam in the tank.

[0006] The air flotation separator has a gas overflow port at the bottom, which is used to input the mixed phase of condensate and non-condensable gas driven by the pressure in the steam recovery tank. It is the starting inlet for air flotation separation. The air flotation separator is equipped with an exhaust valve at the top, which is used to discharge the non-condensable gas that cannot be condensed after air flotation separation, maintain the pressure balance in the tank and connect to the waste gas treatment system.

[0007] The air flotation separator is equipped with an organic matter separation tube, which serves as a collection channel for organic impurities. The impurities are discharged in a directional manner through an overflow mechanism. An organic matter overflow port is opened at the upper end of the organic matter separation tube. When the organic matter foam layer in the air flotation separator reaches a set height, the foam is introduced into the separation tube through overflow. An organic matter discharge port is opened at the bottom end of the organic matter separation tube to collect the separated organic matter impurities, thereby achieving the final separation of the solid and liquid phases.

[0008] The bottom outer side of the organic matter separation tube has a condensate overflow port for discharging the pure condensate from the bottom after air flotation separation. Its position is designed to ensure that only the clean water after impurities are removed is collected. The condensate overflow port is connected to a curved drain pipe. The curved structure forms a liquid seal to prevent gas from leaking from the drain pipe, while also extending the condensate flow path to stabilize the flow rate. The curved drain pipe is located inside the organic matter separation tube, utilizing the internal space of the separation tube to avoid occupying additional tank volume. An overflow elbow is provided at the upper end of the curved drain pipe, which controls the condensate overflow height and forms a liquid level linkage with the organic matter overflow port. The bottom of the curved drain pipe has a condensate outlet for the final recycling and reuse of pure condensate.

[0009] Furthermore, the spiral cooling water pipe is made of pure copper, which has a thermal conductivity of up to 401 W / (m・K), 8-10 times that of ordinary steel pipes. This effectively increases the heat exchange between steam and cooling water, and shortens the heat transfer time through the high thermal conductivity material, allowing the steam to quickly release latent heat and condense after contacting the pipe wall.

[0010] Furthermore, a spiral baffle connects the inner wall of the steam recovery tank and the outer wall of the air flotation separator, dividing the annular gap into a spiral channel. The spiral direction of the baffle is consistent with that of the spiral cold water pipe, ensuring that the steam flow direction matches the spiral direction of the cold water pipe and avoiding flow interference. The spiral pitch of the baffle is consistent with that of the spiral cold water pipe, ensuring that the steam maintains a uniform contact distance with the surface of the cold water pipe during flow. The spiral cold water pipe is located within the gap of the spiral baffle, and the baffle constrains the steam flow path, causing it to move in a serpentine manner along the spiral channel, thereby increasing the steam flow path length to 3-5 times the height of the tank. This increases the contact time between the steam and the spiral cold water pipe, extending it from 5-8 seconds in the straight pipe type to 15-20 seconds, thus improving the condensation effect. The measured condensation efficiency is more than 40% higher than that of the structure without baffles.

[0011] Furthermore, the steam inlet is located above the spiral baffle, ensuring that the steam enters directly into the beginning of the spiral channel; the gas overflow port is located below the spiral baffle, so that the steam must completely pass through the entire spiral channel before it can be discharged from the overflow port. This allows the steam to pass completely through the entire spiral baffle after entering the steam recovery tank, avoiding insufficient condensation of the steam due to short-path flow.

[0012] Furthermore, the steam in the steam recovery tank flows from top to bottom, while the cooling water in the spiral cooling water pipe flows from bottom to top, forming a counter-current heat exchange mode. This allows the steam and condensate to convect. In the counter-current mode, the temperature difference between the steam and the cooling water is maximized throughout the heat exchange process, increasing the heat exchange efficiency by 25% to 30% compared to the co-current mode. This, in turn, improves the condensation effect, increasing the amount of steam condensed per unit time by more than 30%.

[0013] Furthermore, a diffuser plate is embedded at the gas overflow port as the core component for bubble breakage. The diffuser plate is made of high-temperature sintered porous ceramic material with a porosity of 40% to 50% and a uniform pore size distribution of 50-100μm. It can refine steam bubbles, breaking bubbles with an initial diameter of 5-10mm into tiny bubbles of 0.1-0.5mm, increasing the contact area between bubbles and condensate, increasing the specific surface area by 10-20 times, and significantly improving mass transfer efficiency.

[0014] Furthermore, the diffuser plate is tilted at 30°-60°. The tilt angle optimizes the uniformity of bubble distribution, thereby increasing the bubble dispersion space. The horizontal cross-sectional area covered by the bubbles during their ascent is expanded by 1.5-2 times, making the bubble distribution more uniform and avoiding uneven condensation efficiency caused by localized bubble density.

[0015] Furthermore, the condensate overflow outlet is located below the gas overflow outlet. After the condensate in the lower area is separated by air flotation, most of the impurities have floated to the surface. As a result, the condensate flowing out of the condensate overflow outlet is relatively pure, and the measured turbidity is more than 80% lower than that at the gas overflow outlet.

[0016] Furthermore, the overflow elbow is at the same height as the organic overflow outlet. This equal-height design enables liquid level linkage control, ensuring that the water level in the flotation separator is at the same height as the overflow elbow and the organic overflow outlet. This guarantees that the organic foam layer and the condensate overflow surface rise synchronously, allowing the organic foam to flow out through the organic overflow outlet at the same time as the condensate flows out through the overflow elbow, preventing foam from not being discharged in time or excessive loss of condensate due to liquid level deviation.

[0017] Furthermore, an air pressure balancing valve is installed at the overflow elbow. The valve adjusts the air pressure difference between the inside and outside of the elbow, thereby balancing the air pressure between the overflow elbow and the outside, controlling the internal and external pressure difference within ±50Pa, preventing the formation of a vacuum at the overflow elbow that hinders the flow of condensate, ensuring a stable flow rate of condensate, and avoiding flow interruption or flow rate fluctuations caused by vacuum.

[0018] Compared with the prior art, the beneficial effects of the present invention include:

[0019] This invention proposes an organic synthesis steam recovery device. Through a specially designed inclined porous ceramic diffuser plate at the gas overflow port, steam bubbles are effectively refined—breaking larger initial bubbles into smaller clusters. These tiny bubbles, during their ascent, form more thorough contact with the condensate, significantly increasing the mass transfer area between the gas and liquid phases. This allows incompletely condensed steam to further release its latent heat and undergo deep condensation within the flotation separator, significantly improving the overall thoroughness of steam recovery. Simultaneously, the refined tiny bubbles generate continuous buoyancy during their ascent, effectively capturing and carrying organic impurities towards the liquid surface. As the bubbles accumulate, impurities gradually form a stable foam layer, ultimately achieving directional collection through the organic overflow port. This process, through synchronized liquid level control design of the overflow elbow and the organic overflow port, ensures a dynamic balance between the foam layer and the condensate surface. This avoids secondary contamination from residual foam and prevents excessive impurity entrainment in the condensate, achieving precise separation of organic matter from pure condensate. Attached Figure Description

[0020] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0021] Figure 1 The schematic diagram shows a cross-sectional view of an organic synthesis steam recovery device according to an embodiment of the present invention;

[0022] Figure 2 The schematic diagram shows the external structure of an organic synthesis steam recovery device according to one embodiment of the present invention;

[0023] Figure 3 The schematic diagram shows a cross-sectional view of an organic synthesis steam recovery device according to an embodiment of the present invention;

[0024] Figure 4 The schematic diagram shows a spiral cooling water pipe structure of an organic synthesis steam recovery device according to an embodiment of the present invention;

[0025] Figure 5 The schematic diagram shows a cross-sectional view of the organic matter separation tube of an organic synthesis steam recovery device according to an embodiment of the present invention;

[0026] Figure 6 The diagram illustrates a curved drain pipe structure of an organic synthesis steam recovery device according to an embodiment of the present invention.

[0027] The following are the labels in the diagram: 1. Steam recovery tank; 2. Air flotation separator; 3. Spiral baffle; 4. Water inlet; 5. Spiral cold water pipe; 6. Water outlet; 7. Steam inlet; 8. Gas overflow outlet; 9. Air diffuser; 10. Exhaust valve; 11. Organic matter separation pipe; 12. Organic matter overflow outlet; 13. Organic matter discharge outlet; 14. Condensate overflow outlet; 15. Bent drain pipe; 16. Overflow elbow; 17. Pressure balancing valve; 18. Condensate discharge outlet. Detailed Implementation

[0028] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0029] According to the embodiments of the present invention, Figure 1-6As shown. An organic synthesis steam recovery device, characterized in that it includes: a steam recovery tank 1 as the main cavity for steam condensation, providing a space for heat exchange between steam and cooling water, the internal structure of which directly affects the condensation efficiency; and an air flotation separator 2 nested inside the steam recovery tank 1, used for deep air flotation separation of the gas-liquid mixture after the initial condensation, realizing secondary separation of organic impurities and pure condensate, and shortening the gas-liquid transmission path and reducing energy loss through the spatial nesting design.

[0030] A water inlet 4 is provided on one side of the steam recovery tank 1 for the input of cooling water to provide a continuous cold source for the spiral chilled water pipe. The water inlet 4 is connected to the spiral chilled water pipe 5. The spiral chilled water pipe extends the flow path of the cooling water and increases the contact area with the steam through the spiral structure. It is made of pure copper. Copper has a thermal conductivity of up to 401 W / (m・K), which is 8-10 times that of ordinary steel pipe. The heat transfer time can be shortened by using a material with high thermal conductivity, so that the steam can quickly release its latent heat and condense after contacting the pipe wall. The spiral chilled water pipe 5 is located in the annular gap between the steam recovery tank 1 and the air flotation separator 2. This space is used to maximize the utilization rate of the tank volume.

[0031] The steam recovery tank 1 has an outlet 6 on the other side for discharging the cooling water after heat exchange and forming a convective circulation with the inlet 4; the outlet 6 is connected to the upper end of the spiral cooling water pipe 5 to ensure that the cooling water flows from bottom to top, forming a counter-current heat exchange with the steam flowing from top to bottom in the steam recovery tank 1. In the counter-current mode, the temperature difference between the steam and the cooling water is maximized throughout the heat exchange process, which improves the heat exchange efficiency by 25% to 30% compared with the co-current mode, and increases the steam condensation amount by more than 30% per unit time.

[0032] A steam inlet 7 is provided on one side of the steam recovery tank 1, serving as the inlet for organic synthesis waste gas steam. Its location affects the initial flow path of the steam within the tank. A spiral baffle 3 connects the inner wall of the steam recovery tank 1 to the outer wall of the flotation separator 2. This spiral baffle divides the annular gap into spiral channels through its spiral structure. The spiral direction of the spiral baffle 3 is consistent with the spiral direction of the spiral cooling water pipe 5. This unidirectional design ensures that the steam flow direction matches the spiral direction of the cooling water pipe, avoiding flow interference. The spiral pitch of the spiral baffle 3 is consistent with the spiral pitch of the spiral cooling water pipe 5. This equal pitch design ensures that the steam flow path is consistent with the spiral direction of the cooling water pipe 5. During the flow of steam, a uniform contact distance is maintained between the steam and the surface of the cold water pipe. The spiral cold water pipe 5 is located within the gap of the spiral baffle 3, and the steam flow path is constrained by the baffle to make it move forward in a serpentine manner along the spiral channel. The steam inlet 7 is located above the spiral baffle 3, ensuring that the steam enters directly into the beginning of the spiral channel after entering. The gas overflow port 8 is located below the spiral baffle 3, so that the steam must completely pass through the entire spiral channel before it can be discharged from the overflow port. The above design together increases the steam flow path and the contact time between the steam and the spiral cold water pipe 5. The measured condensation efficiency is more than 40% higher than that of the structure without baffles.

[0033] The air flotation separator 2 has a gas overflow port 8 at the bottom, which is used to input the mixed phase of condensate and uncondensed gas driven by the pressure in the steam recovery tank 1. It is the starting inlet for air flotation separation. A gas diffuser plate 9 is embedded in the gas overflow port 8. The gas diffuser plate is made of high-temperature sintered porous ceramic material and is set at an inclination of 30°-60°. The inclination angle optimizes the uniformity of bubble distribution. It can break the steam bubbles with an initial diameter of 5-10mm into tiny bubbles of 0.1-0.5mm, increase the horizontal cross-sectional area covered by the bubbles during the rise, make the bubble distribution more uniform, and increase the specific surface area of ​​the bubbles by 10-20 times, which significantly improves the mass transfer efficiency.

[0034] The top of the air flotation separator 2 is equipped with an exhaust valve 10, which is used to discharge the non-condensable gas that cannot be condensed after air flotation separation, maintain the pressure balance inside the tank, and connect to the waste gas treatment system.

[0035] The air flotation separator 2 is equipped with an organic matter separation pipe 11 as a collection channel for organic impurities, and the impurities are discharged in a directional manner through an overflow mechanism; an organic matter overflow port 12 is opened at the upper end of the organic matter separation pipe 11, and when the organic matter foam layer in the air flotation separator 2 reaches a set height, the foam is introduced into the separation pipe through the overflow method; an organic matter discharge port 13 is opened at the bottom end of the organic matter separation pipe 11, which is used to collect the separated organic matter impurities to achieve the final separation of the solid and liquid phases;

[0036] A condensate overflow port 14 is provided on the outer bottom of the organic matter separation pipe 11. This overflow port is located below the gas overflow port 8. After air flotation separation, most impurities in the condensate in the lower area have floated to the surface, and the measured turbidity is more than 80% lower than that at the gas overflow port 8, ensuring that the outflowing condensate is relatively pure. The condensate overflow port 14 is connected to a curved drain pipe 15. The curved structure forms a liquid seal to prevent gas from leaking from the drain pipe, while also extending the condensate flow path to stabilize the flow rate. The curved drain pipe 15 is located inside the organic matter separation pipe 11, utilizing the internal space of the separation pipe to avoid occupying additional tank volume. An overflow elbow 16 is provided at the upper end of the curved drain pipe 15. This elbow is at the same height as the organic matter overflow port 12. The advanced design enables liquid level linkage control, ensuring that the water level in the flotation separator 2 is synchronized with the overflow elbow 16 and the organic matter overflow port 12. This allows condensate to flow out from the overflow elbow 16 while organic foam can also flow out through the organic matter overflow port 12, preventing foam from not being discharged in time or excessive condensate loss due to liquid level deviation. An air pressure balancing valve 17 is installed at the overflow elbow 16 to adjust the air pressure difference inside and outside the elbow, balancing the air pressure between the overflow elbow 16 and the outside to prevent a vacuum from forming at the elbow and hindering the flow of condensate. This ensures a stable condensate flow rate and avoids flow interruption or flow rate fluctuation due to vacuum. A condensate outlet 18 is opened at the bottom of the curved drain pipe 15 for the final recycling and reuse of pure condensate.

[0037] Working principle: This device achieves steam heat recovery and removal of organic impurities through a three-stage condensation and separation system. The core process consists of three stages: steam pre-condensation → air flotation deep treatment → liquid-gas-slag three-phase separation. The specific working principle is as follows:

[0038] 1. Steam recovery tank 1 pre-condensation

[0039] The convective heat exchange system is designed so that steam enters from the steam inlet 7 and flows spirally from top to bottom along the gap of the spiral baffle 3, forming a meandering path that is 3 to 5 times the height of the tank. Cooling water in the spiral cold water pipe 5 is pumped in from the water inlet 4 and flows spirally in the opposite direction from bottom to top along the pure copper pipe, forming a 180° counter-convective flow with the steam. The thermal conductivity of the copper pipe wall reaches 401 W / (m・K), which is twice as high as that of ordinary steel pipes, resulting in a higher heat exchange efficiency.

[0040] The spiral baffle 3 and the cold water pipe 5 are designed with the same pitch and direction of rotation, which makes the steam form turbulence in the gap between the baffles, prolongs the contact time, and improves the condensation efficiency compared with the straight pipe type.

[0041] The initial condensation and level control steam condenses on the outer surface of the spiral cooling water pipe to form a liquid film, which gathers at the bottom of the steam recovery tank. When the condensate level reaches the height of the gas overflow port 8, the subsequent steam continues to enter, causing the pressure inside the tank to rise, which pushes the condensate through the gas overflow port 8 into the air flotation separator 2, forming a dynamic level balance.

[0042] 2. Bubble refinement and condensation enhancement

[0043] When the incompletely condensed steam and non-condensable gas pass through the gas overflow port 8, they first pass through the embedded inclined 30°-60° diffuser plate 9, which refines the bubble particle size to 0.1-0.5 mm and increases the specific surface area of ​​the bubbles.

[0044] The inclined design creates a gradient distribution of bubbles as they rise, ensuring efficient mass transfer throughout the tank.

[0045] The refined bubbles from the gas-liquid secondary condensation come into full contact with the condensate in the flotation separator during their ascent, and the vapor components continue to condense on the liquid film surface.

[0046] The bubble rises over a path of 150-200cm and has a residence time of 3-5 seconds, which increases the condensation time compared to the traditional direct-flow type.

[0047] 3. Air flotation separation

[0048] During the organic flotation process, the rising bubbles generate a buoyancy force, which carries organic impurities from the condensate to adhere to the bubble surface, forming a gas-liquid composite phase.

[0049] When the impurity particle size is ≥5μm, the adhesion efficiency reaches 95%, and it rises to the top of the air flotation separator with the bubbles;

[0050] When the foam layer is 5-10cm thick, it enters the separation tube 11 through the organic overflow port 12 and is finally collected from the organic discharge port 13, thus achieving impurity separation.

[0051] The purified condensate, after impurities have been removed, settles to the bottom of the air flotation separator and flows into the curved drain pipe 15 through the condensate overflow port 14, located 5-10 cm below the gas overflow port 8.

[0052] The overflow elbow 16 is at the same height as the organic overflow port 12 to ensure that the liquid level is stable at the set height.

[0053] The pressure balancing valve 17 maintains the pressure balance inside and outside the overflow port to prevent vacuum from hindering flow, and finally the clean condensate is reused from the outlet 18.

[0054] 4. Waste gas and residual pressure treatment

[0055] Non-condensable gases, such as air and inert gases, rise to the top of the air flotation separator and are connected to the waste gas recovery system through the exhaust valve (10). After being treated by activated carbon adsorption or incineration, they are discharged in compliance with standards. The entire process forms a closed-loop treatment of spiral condensation → bubble refinement → air flotation separation → gradient discharge, achieving the dual goals of heat energy recovery and environmentally friendly emissions.

[0056] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. An organic synthesis steam recovery device, characterized in that, include: A steam recovery tank and an air flotation separator are provided. The air flotation separator is located inside the steam recovery tank. A water inlet is provided on one side of the steam recovery tank and a spiral cold water pipe is connected to it. The spiral cold water pipe is located between the steam recovery tank and the air flotation separator. An outlet is provided on the other side of the steam recovery tank and is connected to the upper end of the spiral cold water pipe. A steam inlet is provided on one side of the steam recovery tank. The air flotation separator is provided with a gas overflow port at the bottom and an exhaust valve at the top. The air flotation separator is equipped with an organic matter separation pipe, with an organic matter overflow port at the upper end and an organic matter discharge port at the bottom end. The bottom outer side of the organic matter separation tube is provided with a condensate overflow port, the condensate overflow port is connected to a curved drain pipe, the curved drain pipe is located inside the organic matter separation tube, the upper end of the curved drain pipe is provided with an overflow elbow, and the bottom of the curved drain pipe is provided with a condensate discharge port.

2. The organic synthesis steam recovery device according to claim 1, characterized in that, The spiral cooling water pipe is made of pure copper.

3. The organic synthesis steam recovery device according to claim 1, characterized in that, A spiral baffle is connected between the inner wall of the steam recovery tank and the outer wall of the air flotation separator. The spiral direction of the spiral baffle is the same as that of the spiral cold water pipe. The spiral pitch of the spiral baffle is the same as that of the spiral cold water pipe, and the spiral cold water pipe is located within the gap of the spiral baffle.

4. An organic synthesis steam recovery device according to claim 3, characterized in that, The steam inlet is located above the spiral baffle, and the gas overflow outlet is located below the spiral baffle.

5. An organic synthesis steam recovery device according to claim 1, characterized in that, The steam in the steam recovery tank flows from top to bottom, and the cooling water in the spiral cooling water pipe flows from bottom to top.

6. An organic synthesis steam recovery device according to claim 1, characterized in that, A gas diffuser plate is embedded in the gas overflow port, and the gas diffuser plate is made of porous ceramic material sintered at high temperature.

7. An organic synthesis steam recovery device according to claim 6, characterized in that, The air diffuser is set at an angle of 30°-60°.

8. An organic synthesis steam recovery device according to claim 1, characterized in that, The condensate overflow outlet is located below the gas overflow outlet.

9. An organic synthesis steam recovery device according to claim 1, characterized in that, The overflow elbow is at the same height as the organic overflow outlet.

10. An organic synthesis steam recovery device according to claim 1, characterized in that, An air pressure balancing valve is installed at the overflow elbow.

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