A solvent recovery condensing apparatus

Abstract

The utility model relates to solvent recovery condensing technical field, concretely is a kind of solvent recovery condensing device, including cooling cover, the circumferential inner wall of cooling cover is fixedly connected with baffle, the above of baffle is provided with flow guide pipe, the inside of cooling cover is provided in the flow guide pipe, the both ends of flow guide pipe are fixedly connected with air inlet pipe and separation cylinder respectively.The utility model discloses, flow guide pipe adopts the helical structure of gradually increasing helical diameter from top to bottom, significantly prolongs the flow path and residence time of solvent vapor in pipe, provides sufficient condition for heat exchange, at the same time, cooling cavity uses the cooling liquid circulation mode of lower inlet upper outlet, cooperate the fixed bucket design of gradually increasing internal diameter from top to bottom, can speed up the replacement speed of upper layer temperature rising cooling liquid, make cooling cavity inside always maintain efficient cooling environment, the heat exchange time of flow guide pipe with lower layer low-temperature cooling liquid is also lengthened gradually with the helical diameter, further strengthen condensing effect.

Description

Technical Field

[0001] This utility model relates to the field of solvent recovery and condensation technology, specifically a solvent recovery and condensation device. Background Technology

[0002] In the field of solvent recovery and condensation technology, the efficiency and stability of solvent recovery and condensation devices are crucial. Currently, solvents are widely used in industrial production, and solvent recovery not only reduces production costs but also aligns with environmental protection principles, reducing pollution.

[0003] However, existing solvent recovery condensation devices generally suffer from low condensation efficiency. On one hand, traditional condenser tube designs are relatively simple, resulting in short flow paths for solvent vapor within the tubes and insufficient heat exchange time with the coolant. This leads to a large amount of vapor being discharged before it is fully condensed, resulting in solvent waste. On the other hand, the coolant circulation system lacks optimization and cannot provide targeted cooling based on temperature changes in different areas during condensation, leading to uneven temperature distribution within the cooling chamber and further reducing the overall condensation effect. Therefore, a solvent recovery condensation device is urgently needed to solve these problems. Utility Model Content

[0004] In view of the shortcomings of the prior art mentioned in the background section, the present invention provides a solvent recovery and condensation device.

[0005] This utility model overcomes the above technical problems by adopting the following technical solution:

[0006] A solvent recovery and condensation device includes a cooling shroud, a partition is fixedly connected to the inner circumference of the cooling shroud, a guide pipe is provided above the partition, the guide pipe is located inside the cooling shroud, an air inlet pipe and a separation cylinder are fixedly connected to both ends of the guide pipe respectively, and a discharge assembly is fixedly connected to the end of the separation cylinder away from the guide pipe.

[0007] Preferably, the guide tube is spiral-shaped, and the spiral diameter of the guide tube gradually increases from top to bottom.

[0008] Preferably, a fixed bucket is fixedly connected to the inner circumference of the cooling cover, the inner diameter of the fixed bucket gradually increases from top to bottom, the fixed bucket, the cooling cover and the partition plate surround a cooling cavity, and the guide pipe is located inside the cooling cavity.

[0009] Preferably, the outer circumferential wall of the cooling cover is fixedly connected with an outlet pipe and an inlet pipe, both of which are connected to the cooling cavity, and the outlet pipe is positioned above the inlet pipe.

[0010] Preferably, a circular ring plate is fixedly connected to the bottom outer wall of the cooling cover, and support columns that are evenly spaced and distributed in a circle are fixedly connected to the bottom outer wall of the circular ring plate.

[0011] Preferably, the cross-section of the separation cylinder is an inverted cone shape, and a guide plate is fixedly connected to the inner circumference of the separation cylinder, the spiral diameter of the guide plate gradually increasing from top to bottom.

[0012] Preferably, the discharge assembly includes a flow guide bucket fixedly connected to the bottom end of the separation cylinder. The flow guide bucket is funnel-shaped, and a drain pipe is fixedly connected to the bottom end of the flow guide bucket.

[0013] By adopting the above structure, this utility model has the following advantages compared with the prior art:

[0014] 1. This utility model optimizes the heat exchange effect through multiple structural designs, significantly improving solvent condensation efficiency. On the one hand, the guide tube adopts a spiral structure with the spiral diameter gradually increasing from top to bottom, which significantly extends the flow path and residence time of solvent vapor in the tube, providing sufficient conditions for heat exchange. On the other hand, the cooling chamber adopts a bottom-in, top-out coolant circulation method, combined with a fixed bucket design with the inner diameter gradually increasing from top to bottom, which can accelerate the replacement speed of the upper layer of heated coolant, so that the cooling chamber always maintains a highly efficient cooling environment. At the same time, the guide tube with the gradually changing spiral diameter also extends the heat exchange time with the lower layer of low-temperature coolant, further enhancing the condensation effect.

[0015] 2. This utility model effectively improves the purity of the recovered solvent through the optimized design of the separation structure. Specifically, when the condensed material enters the separation cylinder with an inverted conical cross-section, the guide plate with a gradually increasing spiral diameter on the inner wall guides the material to flow downwards in a spiral. Combined with the gravity of the inverted conical cylinder, the liquid solvent and a small amount of incompletely condensed residual vapor can be separated in a secondary manner. The uncondensed vapor can continue to cool and liquefy during the spiral flow, reducing solvent loss and preventing residual vapor from mixing into the liquid solvent and affecting the purity, thus achieving high-purity solvent recovery. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall front structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of the cooling cover of this utility model after it has been cut open.

[0018] Figure 3 This is a schematic diagram of the overall half-section structure of this utility model.

[0019] Figure 4 This utility model Figure 3 A magnified structural diagram of point A in the middle.

[0020] In the diagram: 1. Cooling cover; 2. Liquid outlet pipe; 3. Liquid inlet pipe; 5. Support column; 6. Separator cylinder; 7. Drain pipe; 8. Air inlet pipe; 9. Guide pipe; 10. Fixed hopper; 11. Baffle plate; 12. Circular plate; 13. Guide plate; 14. Drainage hopper. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 In this embodiment of the present invention, a solvent recovery and condensation device includes a cooling shroud 1, a partition 11 is fixedly connected to the inner circumference of the cooling shroud 1, a guide pipe 9 is provided above the partition 11, the guide pipe 9 is located inside the cooling shroud 1, an air inlet pipe 8 and a separation cylinder 6 are fixedly connected to both ends of the guide pipe 9 respectively, and a discharge assembly is fixedly connected to one end of the separation cylinder 6 away from the guide pipe 9.

[0023] Furthermore, the guide tube 9 is spiral-shaped, and the spiral diameter of the guide tube 9 gradually increases from top to bottom. This can also prolong the heat exchange time between the solvent vapor and the coolant at the bottom of the cooling chamber, thereby further improving the condensation effect of the solvent vapor.

[0024] Furthermore, a fixed bucket 10 is fixedly connected to the inner circumference of the cooling cover 1. The inner diameter of the fixed bucket 10 gradually increases from top to bottom. The fixed bucket 10, the cooling cover 1, and the partition 11 surround the cooling cavity, and the guide pipe 9 is located inside the cooling cavity.

[0025] Furthermore, the outer circumferential wall of the cooling cover 1 is fixedly connected with an outlet pipe 2 and an inlet pipe 3. Both the outlet pipe 2 and the inlet pipe 3 are connected to the cooling chamber. The outlet pipe 2 is located above the inlet pipe 3. When the vapor in the guide pipe 9 exchanges heat with the coolant in the cooling chamber, the temperature of the upper layer of coolant in the cooling chamber will be higher than that of the lower layer. At this time, by gradually increasing the inner diameter of the fixed bucket 10 from top to bottom, the capacity of the coolant at the top of the fixed bucket 10 can be reduced, thereby accelerating the replacement efficiency of the upper layer of coolant and maintaining a good cooling environment in the cooling chamber, so as to achieve efficient condensation of solvent vapor in the guide pipe 9.

[0026] Furthermore, a circular ring plate 12 is fixedly connected to the bottom outer wall of the cooling cover 1, and support columns 5 distributed in a circular pattern at equal intervals are fixedly connected to the bottom outer wall of the circular ring plate 12, ensuring the stability of the entire condensation device.

[0027] Furthermore, the cross-section of the separation cylinder 6 is an inverted cone shape, and a guide plate 13 is fixedly connected to the inner circumference of the separation cylinder 6. The spiral diameter of the guide plate 13 gradually increases from top to bottom. When the condensed liquid solvent and a small amount of incompletely condensed vapor enter the separation cylinder 6 with an inverted cone cross-section, the guide plate 13 on the inner wall of the separation cylinder 6 also adopts a design with a spiral diameter that gradually increases from top to bottom. Combined with the inverted cone cylinder body, it not only guides the material to flow downward in a spiral, but also uses gravity to further separate the liquid solvent and residual vapor. The uncondensed vapor can continue to cool and liquefy during the flow process, reducing solvent loss and improving the recovery purity.

[0028] Furthermore, the discharge assembly includes a funnel 14 fixedly connected to the bottom of the separation cylinder 6. The funnel 14 is funnel-shaped, and a drain pipe 7 is fixedly connected to the bottom of the funnel 14. Pure liquid solvent is collected through the funnel-shaped funnel 14 at the bottom of the separation cylinder 6 and then discharged and collected through the drain pipe 7, thus realizing efficient solvent recovery, high-purity collection and stable operation of the device.

[0029] Working principle: The solvent vapor to be recovered enters the guide pipe 9 inside the cooling shroud 1 through the air inlet pipe 8. Since the guide pipe 9 has a spiral structure with the diameter gradually increasing from top to bottom, and is located in the cooling chamber surrounded by the fixed hopper 10, the cooling shroud 1 and the partition 11, this spiral design greatly extends the flow path and residence time of the vapor in the guide pipe 9, providing sufficient conditions for heat exchange. The cooling chamber is fed with coolant through the liquid inlet pipe 3 below and discharged with the heated coolant through the liquid outlet pipe 2 above, forming a coolant circulation from top to bottom. This circulation can fully wrap the spiral guide pipe 9, achieving efficient heat exchange and enabling the vapor to condense into liquid solvent quickly, significantly improving condensation efficiency.

[0030] Meanwhile, when the steam in the guide pipe 9 exchanges heat with the coolant in the cooling chamber, the temperature of the upper layer of coolant in the cooling chamber will be higher than that of the lower layer. At this time, by gradually increasing the inner diameter of the fixed bucket 10 from top to bottom, the capacity of the coolant at the top of the fixed bucket 10 can be reduced, thereby accelerating the replacement efficiency of the upper layer of coolant and maintaining a good cooling environment in the cooling chamber. This achieves efficient condensation of the solvent vapor in the guide pipe 9. Furthermore, the gradual increase in the spiral diameter of the guide pipe 9 from top to bottom can also prolong the heat exchange time between the solvent vapor and the coolant at the bottom of the cooling chamber, thereby further improving the condensation effect of the solvent vapor.

[0031] When the condensed liquid solvent and a small amount of incompletely condensed vapor enter the separator 6 with an inverted conical cross-section, the guide plate 13 on the inner wall of the separator 6 also adopts a design with the spiral diameter gradually increasing from top to bottom. Combined with the inverted conical cylinder body, it not only guides the material to flow downward in a spiral, but also uses gravity to further separate the liquid solvent and residual vapor. The uncondensed vapor can continue to cool and liquefy during the flow process, reducing solvent loss and improving the recovery purity. Finally, the pure liquid solvent is collected by the funnel-shaped guide bucket 14 at the bottom of the separator 6, and then discharged and collected through the drain pipe 7, realizing efficient solvent recovery, high-purity collection and stable operation of the device.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention.

Claims

1. A solvent recovery and condensation device, comprising a cooling shroud (1), characterized in that, A partition (11) is fixedly connected to the inner circumference of the cooling shroud (1). A guide pipe (9) is provided above the partition (11). The guide pipe (9) is located inside the cooling shroud (1). An air inlet pipe (8) and a separator (6) are fixedly connected to both ends of the guide pipe (9). A discharge assembly is fixedly connected to the end of the separator (6) away from the guide pipe (9). The guide pipe (9) is spiral-shaped, and the spiral diameter of the guide pipe (9) gradually increases from top to bottom. 1) A fixed bucket (10) is fixedly connected to the inner wall of the circumference. The inner diameter of the fixed bucket (10) gradually increases from top to bottom. The fixed bucket (10), the cooling cover (1) and the partition (11) surround the cooling cavity. The guide pipe (9) is located inside the cooling cavity. The outer wall of the circumference of the cooling cover (1) is fixedly connected to the liquid outlet pipe (2) and the liquid inlet pipe (3). The liquid outlet pipe (2) and the liquid inlet pipe (3) are both connected to the cooling cavity. The liquid outlet pipe (2) is located above the liquid inlet pipe (3).

2. The solvent recovery and condensation device according to claim 1, characterized in that, The bottom outer wall of the cooling cover (1) is fixedly connected to a circular ring plate (12), and the bottom outer wall of the circular ring plate (12) is fixedly connected to support columns (5) that are evenly spaced and distributed in a circular pattern.

3. The solvent recovery and condensation device according to claim 2, characterized in that, The cross-section of the separation cylinder (6) is an inverted cone shape, and a guide plate (13) is fixedly connected to the inner circumference of the separation cylinder (6). The spiral diameter of the guide plate (13) gradually increases from top to bottom.

4. The solvent recovery and condensation device according to claim 3, characterized in that, The discharge assembly includes a flow guide (14) fixedly connected to the bottom of the separation cylinder (6). The flow guide (14) is funnel-shaped, and a drain pipe (7) is fixedly connected to the bottom of the flow guide (14).

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