Solvent pipeline liquid collection and recovery device
By installing a collection tank and a vent plate in the solvent pipeline and utilizing the flow guiding structure in the gas channel, the vapor is condensed into liquid and collected, thus solving the problem of low solvent recovery efficiency during the evaporation process and achieving efficient solvent recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN LIDAR BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-15
AI Technical Summary
The recovery efficiency of gaseous solvents during evaporation is low, especially when they condense into liquid on the inner wall of the pipe.
A solvent pipeline collection and recovery device was designed, including a flash evaporation box, a gas channel, a fixed rod, a collection tank, a vent plate, and vent holes. By setting up a collection tank and a vent plate inside the flash evaporation box, and using the vent holes of the vent plate and the inclined baffles in the gas channel to guide the flow, the vapor is condensed into liquid and collected in the collection tank. The vapor then enters the collection tank through the collection pipe. Uncondensed vapor enters the condenser for condensation and recovery.
It improves solvent recovery efficiency, enables efficient condensation and recovery of vapor, and ensures effective utilization of solvent.
Smart Images
Figure CN224236092U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of solvent recovery technology, specifically to a solvent pipeline collection and recovery device. Background Technology
[0002] Evaporation extraction refers to the process of separating non-volatile substances from a mixture by heating it to evaporate the solvent. It is a common substance separation technique with wide applications in chemistry, pharmaceuticals, and food processing. It typically involves heating a solution containing dissolved substances, causing the solvent to vaporize while the dissolved substances remain in a liquid or solid state. After evaporation extraction, the vapor contains solvent, requiring further solvent treatment and recovery.
[0003] In the process of gaseous solvent evaporation and recovery, some solvent cools and liquefies inside the pipeline, flowing downwards along the inner wall of the pipeline, resulting in low recovery efficiency. Therefore, a solvent pipeline liquid collection and recovery device is provided. Utility Model Content
[0004] The purpose of this invention is to provide a solvent pipeline collection and recovery device to solve the problem of low recovery efficiency during the evaporation of gaseous solvents.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A solvent pipeline collection and recovery device includes: a flash evaporation box, a gas channel, a fixing rod, a collection tank, a vent plate, and a vent hole;
[0007] The top of the flash chamber is connected to a gas channel;
[0008] A fixing rod is installed in the upper part of the flash chamber, and a liquid collection tank is installed on the fixing rod. The liquid collection tank is a tank structure with an open top, and the liquid collection tank is located in the flash chamber directly below the gas channel.
[0009] The flash chamber is equipped with a vent plate, one end of which extends into the liquid collection tank, and the vent plate has vent holes.
[0010] Furthermore: a feed pipe is connected to the lower part of one side of the flash evaporation box, and a desiccant is installed inside the flash evaporation box.
[0011] Furthermore: the gas passage is U-shaped and connected to the condenser;
[0012] The vertical length of the gas passage at the flash chamber connection end is greater than the vertical length of the gas passage at the condenser connection end.
[0013] Furthermore, the gas channel at the connection end of the flash chamber is provided with multiple inclined baffles, the angle between the baffles and the side wall of the gas channel is 45°, and the baffles are set as arc-shaped plates.
[0014] Furthermore: the flash chamber is connected to the collection tank via a collection pipe, and a sight glass is provided on the side wall of the collection tank.
[0015] Furthermore, a temperature gauge is installed on the upper part of both the flash evaporation box and the liquid collection tank.
[0016] Furthermore: The lower part of the flash chamber is connected to a first output tube, and a pressure gauge is installed on the first output tube;
[0017] The lower part of the collection tank is connected to a second output pipe, and a control valve is installed on the second output pipe.
[0018] Furthermore, the condenser is equipped with a water inlet pipe, a water outlet pipe, and a liquid outlet pipe.
[0019] Furthermore: one end of the liquid collection pipe passes through the flash evaporation box and is connected to the liquid collection tank.
[0020] Furthermore, the ventilation holes are arranged in an arc shape on one side, and there are multiple rows of ventilation holes.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] In this invention, a collection tank is provided at the upper part of the flash evaporation chamber, and a vent plate is provided on the top wall of the flash evaporation chamber directly above the collection tank. Steam enters the gas channel through the vent holes of the vent plate. An inclined baffle is provided on the inner wall of the gas channel to guide the flow, so that the steam is cooled and turns into liquid in the gas channel and flows down the inner wall of the gas channel into the collection tank. It is then collected in the collection tank through the liquid collection pipe, and the collected solvent is recycled. The steam that does not turn into liquid in the gas channel enters the condenser for condensation and is collected after condensation, which facilitates the recovery and reuse of solvent vapor. This invention realizes the condensation of gaseous solvent during evaporation. Attached Figure Description
[0023] Figure 1 This is a cross-sectional view of the flashbox of this utility model.
[0024] Figure 2 This is a side view of the vent plate in this utility model.
[0025] Figure 3 This is a schematic diagram of the liquid collection tank in this utility model.
[0026] Figure 4 This is a top view of the baffle in this utility model.
[0027] In the diagram: 1-Flash chamber, 2-Infeed pipe, 3-Desiccant, 4-Gas passage, 5-Condenser, 6-Baffle, 7-Collection pipe, 8-Collection tank, 9-Sight glass, 10-Thermometer, 11-First output pipe, 12-Pressure gauge, 13-Water inlet pipe, 14-Water outlet pipe, 15-Liquid outlet pipe, 16-Fixing rod, 17-Collection tank, 18-Ventilation plate, 19-Ventilation hole, 20-Second output pipe, 21-Control valve. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0029] See Figure 1-4 The present invention provides a solvent pipeline collection and recovery device, comprising: a flash chamber 1, a feed pipe 2, a scavenger 3, a gas channel 4, a condenser 5, a baffle 6, a collection pipe 7, a collection tank 8, a sight glass 9, a thermometer 10, a first output pipe 11, a pressure gauge 12, a water inlet pipe 13, a water outlet pipe 14, a liquid outlet pipe 15, a fixing rod 16, a collection trough 17, a vent plate 18, a vent hole 19, a second output pipe 20, and a control valve 21.
[0030] A feed pipe 2 is connected to the lower part of one side of the flash evaporation box 1. A desiccant 3 is installed inside the flash evaporation box 1. A gas channel 4 is connected to the top of the flash evaporation box 1. The gas channel 4 is U-shaped and is connected to the condenser 5. The vertical length of the gas channel 4 at the connection end of the flash evaporation box 1 is greater than the vertical length of the gas channel 4 at the connection end of the condenser 5. Multiple inclined baffles 6 are installed inside the gas channel 4 at the connection end of the flash evaporation box 1. The angle between the baffles 6 and the side wall of the gas channel 4 is 45°. The baffles 6 are arc-shaped plates.
[0031] The flash chamber 1 is connected to the collection tank 8 via the collection pipe 7, and the collection tank 8 is equipped with a sight glass 9 on its side wall.
[0032] The upper part of the flash evaporation box 1 and the liquid collection tank 8 are both equipped with a thermometer 10. The lower part of the flash evaporation box 1 is connected to a first output pipe 11, and a pressure gauge 12 is installed on the first output pipe 11. The lower part of the liquid collection tank 8 is connected to a second output pipe 20, and a control valve 21 is installed on the second output pipe 20.
[0033] The condenser 5 is equipped with a water inlet pipe 13, a water outlet pipe 14, and a liquid outlet pipe 15.
[0034] A fixing rod 16 is provided in the upper part of the flash chamber 1. A liquid collection tank 17 is provided on the fixing rod 16. The liquid collection tank 17 is a tank structure with an open top. One end of the liquid collection pipe 7 passes through the flash chamber 1 and is connected to the liquid collection tank 17. The liquid collection tank 17 is located in the flash chamber 1 at the lower part of the gas channel 4. A vent plate 18 is provided in the flash chamber 1 directly above the liquid collection tank 17. One end of the vent plate 18 is inside the liquid collection tank 17. A vent hole 19 is opened on the vent plate 18. One side of the vent hole 19 is arc-shaped.
[0035] Working process: The flash evaporation chamber 1 is a hollow chamber structure. A feed pipe 2 is connected to the side wall of the flash evaporation chamber 1. Steam material enters the flash evaporation chamber 1 through the feed pipe 2. A demister 3 is installed in the upper part of the flash evaporation chamber 1. The demister 3 is used during the evaporation operation when the steam carries a large amount of liquid, to prevent loss of useful products or contamination of the condensate. A thermometer 10 is installed in the upper part of the flash evaporation chamber 1 to monitor the temperature inside the flash evaporation chamber 1.
[0036] A fixing rod 16 is provided in the upper part of the flash evaporation box 1. The fixing rod 16 is connected to a liquid collection tank 17. The liquid collection tank 17 is a tank structure with an open top. The liquid collection tank 17 is located directly below the connection between the gas channel 4 and the flash evaporation box 1. The upper wall of the liquid collection tank 17 does not contact the wall of the flash evaporation box 1. A vent plate 18 is connected to the upper part of the flash evaporation box 1. One end of the vent plate 18 extends into the liquid collection tank 17. The lower wall of the vent plate 18 does not contact the wall of the liquid collection tank 17. The cross-sections of the vent plate 18 and the liquid collection tank 17 are both circular. The diameter of the circular cross-section of the liquid collection tank 17 is larger than the diameter of the circular cross-section of the vent plate 18. The connection between the gas channel 4 and the flash evaporation box 1 is located in the area between the vent plates 18.
[0037] Ventilation holes 19 are provided on the side wall of the vent plate 18. One side of the ventilation hole 19 is arc-shaped, and the other side wall is vertical. Several rows of ventilation holes 19 are provided on the vent plate 18. Steam material passes through the demister 3 and then enters the gas channel 4 through the ventilation holes 19. An inclined baffle 6 is provided in the gas channel 4, with the baffle 6 at a 45° angle to the side wall of the gas channel 4. The baffle guides the steam, facilitating its cooling and condensation into a liquid state within the gas channel. (See also...) Figure 4 The baffle 6 is arc-shaped to facilitate airflow. When steam passes through the vent plate 18 and gas channel 4, some of the steam is cooled. The cooled steam enters the collection tank 17 and then flows through the collection pipe 7 into the collection vessel 8 for collection. The sight glass 9 allows observation of the liquid collection in the collection vessel 8, and the thermometer 10 on the collection vessel 8 allows for temperature monitoring. The liquid in the collection vessel 8 can be discharged through the second output pipe 20.
[0038] Uncooled steam passes through gas channel 4, which is U-shaped and connected to condenser 5. The vertical length of gas channel 4 at the connection end of flash chamber 1 is greater than that at the connection end of condenser 5. Condenser 5 is equipped with inlet pipe 13, outlet pipe 14, and liquid outlet pipe 15. Steam that has not been cooled in gas channel 4 then enters condenser 5 for condensation and is output through liquid outlet pipe 15, thus cooling the steam.
[0039] The liquid inside the flash chamber 1 can be output through the first output pipe 11, and a pressure gauge 12 is installed on the first output pipe 11 for pressure monitoring.
[0040] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.
Claims
1. A solvent pipeline collection and recovery device, characterized in that: include: Flash chamber (1), gas channel (4), fixing rod (16), liquid collection tank (17), vent plate (18), vent hole (19); The top of the flash chamber (1) is connected to a gas channel (4); A fixing rod (16) is provided in the upper part of the flash chamber (1), and a liquid collection tank (17) is provided on the fixing rod (16). The liquid collection tank (17) is a tank structure with an open top. The liquid collection tank (17) is located in the flash chamber (1) directly below the gas channel (4). A vent plate (18) is provided on the flash chamber (1), one end of which extends into the liquid collection tank (17), and a vent hole (19) is opened on the vent plate (18).
2. The solvent pipeline collection and recovery device according to claim 1, characterized in that: The flash chamber (1) is connected to a feed pipe (2) on one side of the lower part, and a desiccant (3) is installed inside the flash chamber (1).
3. The solvent pipeline collection and recovery device according to claim 1, characterized in that: The gas passage (4) is configured as U-shaped and is connected to the condenser (5); The vertical length of the gas passage (4) at the connection end of the flash chamber (1) is greater than the vertical length of the gas passage (4) at the connection end of the condenser (5).
4. The solvent pipeline collection and recovery device according to claim 1, characterized in that: Multiple inclined baffles (6) are provided in the gas channel (4) at the connection end of the flash box (1). The angle between the baffle (6) and the side wall of the gas channel (4) is 45°, and the baffle (6) is set as an arc plate.
5. A solvent pipeline collection and recovery device according to claim 1, characterized in that: The flash chamber (1) is connected to the collection tank (8) via the collection pipe (7), and a sight glass (9) is provided on the side wall of the collection tank (8).
6. A solvent pipeline collection and recovery device according to claim 1, characterized in that: The upper part of the flash chamber (1) and the liquid collection tank (8) is equipped with a thermometer (10).
7. A solvent pipeline collection and recovery device according to claim 1, characterized in that: The lower part of the flash chamber (1) is connected to the first output pipe (11), and a pressure gauge (12) is installed on the first output pipe (11); the lower part of the liquid collection tank (8) is connected to the second output pipe (20), and a control valve (21) is installed on the second output pipe (20).
8. A solvent pipeline collection and recovery device according to claim 3, characterized in that: The condenser (5) is equipped with a water inlet pipe (13), a water outlet pipe (14), and a liquid outlet pipe (15).
9. A solvent pipeline collection and recovery device according to claim 5, characterized in that: One end of the liquid collection pipe (7) passes through the flash box (1) and is connected to the liquid collection tank (17).
10. A solvent pipeline collection and recovery device according to claim 1, characterized in that: The ventilation holes (19) are arranged in an arc shape on one side, and there are multiple rows of ventilation holes (19).