Vacuum device for desorption process of solvent recovery equipment

Abstract

The utility model discloses a vacuum device for a desorption process of solvent recovery equipment, which belongs to the field of solvent recovery equipment and comprises a mounting bottom plate and a condensation component fixedly connected to one side of the upper surface of the mounting bottom plate, a pressurizing mechanism is mounted on the upper surface of the mounting bottom plate, and an extraction mechanism is mounted on the surface of the pressurizing mechanism; through cooperative use of all the devices, uncondensed gas is sucked into the treatment box through a vacuum pump by utilizing a conveying pipe, and a driving motor is started, so that a threaded rod drives a threaded cylinder and an extrusion plate to slide in the treatment box, and the interior of the treatment box is pressurized; through the arrangement of the conical pipe, the uncondensed gas enters the thinner pipeline from the thicker pipeline, so that the pressure of the uncondensed gas is increased, the flow rate of the uncondensed gas is further increased, and the extraction efficiency of the vacuum pump on the uncondensed gas is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of solvent recovery equipment, specifically a vacuum device used in the desorption process of solvent recovery equipment. Background Technology

[0002] The desorption process of solvent recovery equipment mainly involves recovering the desorbed organic solvent vapor through processes such as condensation, cooling, and separation. The high dew point temperature of the organic solvent causes it to condense in the condenser. The condensate enters the separator through a steam trap. Since the solvent is lighter than water, it is easy to separate and recover. The purified condensate is discharged into the sewer. The solvent recovery equipment mainly consists of activated carbon adsorption-desorption tank, pneumatic valves, blower, chimney, dry filter, drying blower, condenser, oil-water separator, etc.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN208878203U) discloses a vacuum device for the desorption process of solvent recovery equipment, relating to the technical field of solvent recovery and desorption equipment. The device comprises a first cylinder fixedly mounted on a saddle, a second cylinder fixedly mounted on top of the first cylinder, end caps fixedly mounted at both ends of the first cylinder, a first connecting pipe fixedly mounted on the lower side wall of the first cylinder, a second connecting pipe fixedly mounted on the lower end of the side wall of the second cylinder, and a third connecting pipe fixedly mounted on the top of the second cylinder, connected to the air inlet pipe of a vacuum blower. A support ring is fixedly mounted on the inner side wall of the second cylinder, a baffle is mounted above the support ring, and a wire mesh is installed between the support ring and the baffle. The device incorporates a gas-liquid separator at the front end of the vacuum blower, enabling the separation of the mixed liquid and gas processed in the first step, improving the working efficiency of the vacuum blower and increasing its service life.

[0004] Although the aforementioned patent, through the installation of structures such as gas-liquid separators at the front end of the vacuum blower, can separate the mixed liquid and gas that have been processed once in advance, thereby improving the working efficiency of the vacuum blower and increasing its service life, it cannot change the internal pressure of the vacuum device when the vacuum device is extracting uncondensed gas after gas-liquid separation. This may result in the vacuum device not being able to improve the extraction efficiency when extracting uncondensed gas.

[0005] Therefore, this invention provides a vacuum device for the desorption process of solvent recovery equipment to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This invention provides a vacuum device for the desorption process of solvent recovery equipment, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a vacuum device for the desorption process of solvent recovery equipment, comprising a mounting base plate and a condensation assembly fixedly connected to one side of the upper surface of the mounting base plate, wherein a pressurizing mechanism is mounted on the upper surface of the mounting base plate, and an extraction mechanism is mounted on the surface of the pressurizing mechanism.

[0010] The pressurization mechanism includes a mounting plate fixedly connected to the upper surface of the mounting base plate. A processing box is fixedly connected to the upper surface of the mounting plate. An extrusion plate is slidably connected inside the processing box. The extrusion plate is slidably connected to the mounting plate. A threaded cylinder is fixedly connected to the lower surface of the extrusion plate. A threaded rod is threadedly connected inside the threaded cylinder. A drive motor with its output end fixedly connected to one end of the threaded rod is fixedly connected to the threaded rod. A support plate is fixedly connected to the surface of the drive motor. Both sides of the support plate are fixedly connected to the mounting plate and the mounting base plate, respectively.

[0011] As a preferred technical solution of this application, the pressurization mechanism further includes conveying pipes that are fixedly connected to both sides of the processing box and communicate with the processing box, one end of one of the conveying pipes is connected to the condensation component, the mounting plate is fixedly connected to the condensation component, and a sealing cover is fixedly connected to the upper surface of the processing box by bolts.

[0012] As a preferred technical solution of this application, the pressurization mechanism further includes an air guide fan that is fixedly connected to the inner top wall of the sealing cover by bolts. The air guide fan is rotatably disposed inside the processing box and corresponds to the extrusion plate.

[0013] As a preferred technical solution of this application, the extraction mechanism includes a tapered tube fixedly connected to the upper surface of the sealing cover, a connecting pipe fixedly connected to one end of the tapered tube, a vacuum pump fixedly connected to one end of the connecting pipe, and a fixing plate fixedly connected to the condensation assembly fixedly connected to the surface of the vacuum pump.

[0014] As a preferred technical solution of this application, the extraction mechanism further includes a filter assembly fixedly connected to the surface of the connecting pipe, a water collection box is sleeved on the surface of the conical pipe, the water collection box is fixedly connected to the sealing cover by bolts, the inside of the water collection box is provided with coolant, and an inlet pipe is fixedly connected to the upper surface of the water collection box.

[0015] As a preferred technical solution of this application, the extraction mechanism further includes a plurality of heat-conducting rods that are fixedly connected to both sides of the water collection box in a path array. The heat-conducting rods are fixedly connected to the sealing cover and inserted into the interior of the processing box. The heat-conducting rods correspond to the air guide fan.

[0016] (III) Beneficial Effects

[0017] Through the cooperation of the pressurizing mechanism and the extraction mechanism, the vacuum pump draws the uncondensed gas into the processing chamber through the delivery pipe. The drive motor is started, causing the threaded rod to drive the threaded cylinder and the extrusion plate to slide inside the processing chamber, pressurizing the inside of the processing chamber. This allows the uncondensed gas to be delivered more quickly to the conical tube by the air guide fan. The conical tube design allows the uncondensed gas to enter from a thicker pipe into a thinner pipe, thereby increasing the flow rate and pressure of the uncondensed gas and further improving the flow rate of the uncondensed gas, thus improving the efficiency of the vacuum pump in extracting the uncondensed gas.

[0018] Furthermore, through the interaction of the coolant and the heat-conducting rod, the heat-conducting rod transfers the temperature of the coolant to the inside of the processing chamber, cooling the uncondensed gas. This combination of cooling and pressurization enhances the intermolecular forces of the uncondensed gas, altering the phase equilibrium conditions and causing gas-liquid separation. This prevents liquid from entering the vacuum pump and affecting it. At the same time, cooling the gas improves the condensation efficiency when it enters the condensation assembly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a vacuum device used in the desorption process of solvent recovery equipment.

[0020] Figure 2 This is a schematic diagram of the pressurization mechanism and extraction mechanism in a vacuum device used in the desorption process of a solvent recovery equipment;

[0021] Figure 3 This is a schematic diagram of the extraction mechanism and processing box in a vacuum device used in the desorption process of solvent recovery equipment;

[0022] Figure 4 This is a schematic diagram of the processing box, air guide fan, and threaded cylinder in a vacuum device used in the desorption process of solvent recovery equipment.

[0023] Figure 5 This is a schematic diagram of the sealing cover and heat-conducting rod in a vacuum device used in the desorption process of solvent recovery equipment.

[0024] In the picture:

[0025] 1. Mounting base plate; 2. Condensation assembly; 3. Mounting plate; 4. Processing box; 5. Extrusion plate; 6. Threaded cylinder; 7. Threaded rod; 8. Drive motor; 9. Support plate; 10. Conveying pipe; 11. Sealing cover; 12. Air guide fan; 13. Conical tube; 14. Connecting pipe; 15. Vacuum pump; 16. Water collection box; 17. Heat conduction rod. Detailed Implementation

[0026] 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.

[0027] This utility model provides a vacuum device for the desorption process of solvent recovery equipment, such as... Figures 1-5 As shown, the vacuum device for the desorption process of solvent recovery equipment includes a mounting base plate 1 and a condensation component 2 fixedly connected to one side of the upper surface of the mounting base plate 1. A pressurizing mechanism is installed on the upper surface of the mounting base plate 1, and an extraction mechanism is installed on the surface of the pressurizing mechanism. The pressurizing mechanism includes a mounting plate 3 fixedly connected to the upper surface of the mounting base plate 1. The mounting plate 3 is fixedly connected to the condensation component 2. A processing box 4 is fixedly connected to the upper surface of the mounting plate 3. A sealing cover 11 is fixedly connected to the upper surface of the processing box 4 by bolts. The pressurizing mechanism also includes a guide fan 12 fixedly connected to the inner top wall of the sealing cover 11 by bolts. By setting the guide fan 12, not only is the flow rate of the uncondensed gas-liquid mixture increased, but the uncondensed gas-liquid mixture can also be guided, so that the uncondensed gas-liquid mixture enters the interior of the conical tube 13 more quickly.

[0028] The air guide fan 12 is rotatably installed inside the processing box 4. The air guide fan 12 corresponds to the extrusion plate 5. The extraction mechanism includes a tapered tube 13 fixedly connected to the upper surface of the sealing cover 11. Through the setting of the tapered tube 13, the uncondensed gas-liquid mixture flows from the larger diameter pipe into the smaller diameter pipe, which increases its pressure and flow rate, thereby further improving the extraction efficiency of the uncondensed gas-liquid mixture and improving the efficiency of the vacuum pump 15.

[0029] One end of the tapered tube 13 is fixedly connected to a connecting pipe 14, and one end of the connecting pipe 14 is fixedly connected to a vacuum pump 15. When the vacuum pump 15 is started, it is drawn into the processing box 4 through the corresponding delivery pipe 10.

[0030] A fixed plate that is fixedly connected to the condenser assembly 2 is fixedly connected to the surface of the vacuum pump 15. The extraction mechanism also includes a filter assembly that is fixedly connected to the surface of the connecting pipe 14. A water collection box 16 is sleeved on the surface of the conical pipe 13. The water collection box 16 is fixedly connected to the sealing cover 11 by bolts. The inside of the water collection box 16 is filled with coolant. An inlet pipe is fixedly connected to the upper surface of the water collection box 16. The inlet pipe facilitates the addition of coolant to the inside of the water collection box 16. The coolant also cools the gas flowing through the conical pipe 13, thereby improving the efficiency of subsequent condensation of the gas.

[0031] The extraction mechanism also includes several heat-conducting rods 17 fixedly connected to both sides of the water collection box 16 in a path array. The heat-conducting rods 17 are fixedly connected to the sealing cover 11 and inserted into the interior of the processing box 4. The heat-conducting rods 17 correspond to the air guide fan 12. Through the setting of coolant inside the water collection box 16, the heat-conducting rods 17 transfer the low temperature to the interior of the processing box 4 to cool down the uncondensed gas-liquid mixture. The air guide fan 12 drives the uncondensed gas-liquid mixture to rotate and generate centrifugal force, thereby separating the gas and liquid in the uncondensed gas-liquid mixture and preventing the liquid in the uncondensed gas-liquid mixture from entering the vacuum pump 15.

[0032] The pressurization mechanism also includes conveying pipes 10 that are fixedly connected to both sides of the processing tank 4 and connected to the processing tank 4. One end of one of the conveying pipes 10 is connected to the condensation component 2. By increasing the pressure and cooling the temperature, the gas-liquid separation in the uncondensed gas-liquid mixture is more thorough. Then, the separated liquid is recovered through the corresponding conveying pipe 10.

[0033] An extrusion plate 5 is slidably connected inside the processing box 4. The extrusion plate 5 is slidably connected to the mounting plate 3. A threaded cylinder 6 is fixedly connected to the lower surface of the extrusion plate 5. A threaded rod 7 is threadedly connected inside the threaded cylinder 6. A drive motor 8 with its output end fixedly connected to the threaded rod 7 is fixedly connected to one end of the threaded rod 7. When the drive motor 8 is started, its output end drives the threaded rod 7 to rotate, so that the threaded cylinder 6 drives the extrusion plate 5 to slide inside the processing box 4, thereby extruding the uncondensed gas-liquid mixture inside the processing box 4 and causing it to move more quickly towards the guide fan 12.

[0034] A support plate 9 is fixedly connected to the surface of the drive motor 8. The two sides of the support plate 9 are fixedly connected to the mounting plate 3 and the mounting base plate 1, respectively. The support plate 9 not only makes the drive motor 8 more stable during use, but also supports the mounting plate 3 and improves the support force of the mounting plate 3.

[0035] Specifically, when the vacuum device used in the desorption process of the solvent recovery equipment is in use: the vacuum pump 15 is started, which draws the uncondensed gas-liquid mixture inside the condensation component 2 into the processing box 4 through the corresponding delivery pipe 10. Then, the drive motor 8 is started, which drives the threaded rod 7 to rotate, causing the threaded cylinder 6 to drive the extrusion plate 5 to slide inside the processing box 4, thereby extruding the uncondensed gas-liquid mixture inside the processing box 4 and causing it to move more quickly towards the guide fan 12. By setting the guide fan 12, not only is the flow rate of the uncondensed gas-liquid mixture increased, but the uncondensed gas-liquid mixture can also be guided, allowing the uncondensed gas-liquid mixture to enter the conical tube 13 more quickly. This allows the uncondensed gas-liquid mixture to flow from the larger diameter pipe into the smaller diameter pipe, increasing its pressure and flow rate, thereby further improving the extraction efficiency of the uncondensed gas-liquid mixture and increasing the efficiency of the vacuum pump 15.

[0036] By using the coolant inside the water collection box 16, the heat-conducting rod 17 transfers the low temperature to the inside of the processing tank 4 to cool the uncondensed gas-liquid mixture. The air guide fan 12 drives the uncondensed gas-liquid mixture to rotate, generating centrifugal force, thereby separating the gas and liquid in the uncondensed gas-liquid mixture. This prevents the liquid in the uncondensed gas-liquid mixture from entering the vacuum pump 15 and affecting it. Furthermore, by increasing the pressure and cooling in combination, the separation of gas and liquid in the uncondensed gas-liquid mixture is made more thorough. The separated liquid is then recovered through the corresponding delivery pipe 10.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A vacuum device for desorption processes in solvent recovery equipment, comprising a mounting base plate (1) and a condensation assembly (2) fixedly connected to one side of the upper surface of the mounting base plate (1), characterized in that: A pressurizing mechanism is installed on the upper surface of the mounting base plate (1), and an extraction mechanism is installed on the surface of the pressurizing mechanism; The pressurization mechanism includes a mounting plate (3) fixedly connected to the upper surface of the mounting base plate (1). A processing box (4) is fixedly connected to the upper surface of the mounting plate (3). An extrusion plate (5) is slidably connected inside the processing box (4). The extrusion plate (5) is slidably connected to the mounting plate (3). A threaded cylinder (6) is fixedly connected to the lower surface of the extrusion plate (5). A threaded rod (7) is threadedly connected inside the threaded cylinder (6). A drive motor (8) with its output end fixedly connected to one end of the threaded rod (7) is fixedly connected to the threaded rod (7). A support plate (9) is fixedly connected to the surface of the drive motor (8). The two sides of the support plate (9) are fixedly connected to the mounting plate (3) and the mounting base plate (1) respectively.

2. The vacuum device for desorption process in solvent recovery equipment according to claim 1, characterized in that: The pressurization mechanism also includes a delivery pipe (10) that is fixedly connected to both sides of the processing box (4) and communicates with the processing box (4). One end of one of the delivery pipes (10) is connected to the condensation component (2). The mounting plate (3) is fixedly connected to the condensation component (2). A sealing cover (11) is fixedly connected to the upper surface of the processing box (4) by bolts.

3. A vacuum device for desorption process in solvent recovery equipment according to claim 2, characterized in that: The pressurization mechanism also includes an air guide fan (12) that is fixedly connected to the inner top wall of the sealing cover (11) by bolts. The air guide fan (12) is rotatably disposed inside the processing box (4) and corresponds to the extrusion plate (5).

4. A vacuum device for desorption process in solvent recovery equipment according to claim 2, characterized in that: The extraction mechanism includes a tapered tube (13) fixedly connected to the upper surface of the sealing cover (11), a connecting tube (14) fixedly connected to one end of the tapered tube (13), a vacuum pump (15) fixedly connected to one end of the connecting tube (14), and a fixing plate fixedly connected to the condensation assembly (2) fixedly connected to the surface of the vacuum pump (15).

5. A vacuum device for desorption process in solvent recovery equipment according to claim 4, characterized in that: The extraction mechanism also includes a filter assembly fixedly connected to the surface of the connecting pipe (14). A water collection box (16) is sleeved on the surface of the tapered pipe (13). The water collection box (16) is fixedly connected to the sealing cover (11) by bolts. Coolant is provided inside the water collection box (16). An inlet pipe is fixedly connected to the upper surface of the water collection box (16).

6. A vacuum device for desorption process in solvent recovery equipment according to claim 5, characterized in that: The extraction mechanism also includes several heat-conducting rods (17) that are fixedly connected to both sides of the water collection box (16) in a path array. The heat-conducting rods (17) are fixedly connected to the sealing cover (11). The heat-conducting rods (17) are inserted into the interior of the processing box (4). The heat-conducting rods (17) correspond to the air guide fan (12).

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