Safe distillation device for recovering petroleum ether
By designing a safe distillation device for petroleum ether recovery, the heating and stirring components of hot water accelerate distillation and condensation, the problems of slow volatility and low recycling efficiency of petroleum ether are solved, and efficient petroleum ether recycling is achieved.
Patent Information
- Application Number
- CN202421356650.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-13
AI Technical Summary
During the separation of petroleum ether and oil, the volatility of petroleum ether is slow and prone to incomplete volatility, resulting in low recycling efficiency.
A safe distillation device is designed, and the reactor, a first-stage tube condenser, a second-stage tube condenser and a recovery tank are connected through pipelines, and hot water is used to heat it in the jacket of the reactor, combined with stirring Components to accelerate distillation and condensation of petroleum ethers.
It realizes efficient distillation separation and recycling of petroleum ethers, improves recycling efficiency, and ensures full separation and recycling of petroleum ethers.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model belongs to the field of petroleum ether recovery, and in particular relates to a safe distillation device for recovering petroleum ether. Background Art
[0002] In the process of oil extraction, petroleum ether is usually added to the reactor as a solvent to cooperate with the production of oil; after the reaction, the petroleum ether in the oil needs to be removed, because petroleum ether has a low boiling point and can be distilled and volatilized when heated at 35-60°C, thereby achieving the separation of petroleum ether and oil; however, in the process of heated distillation and volatilization of petroleum ether, petroleum ether mixes with oil, resulting in a slow volatilization speed and incomplete volatilization. Therefore, a safe distillation device for recovering petroleum ether is proposed. Utility Model Content
[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a safe distillation device for recovering petroleum ether, which solves the problems in the prior art.
[0004] The purpose of the utility model can be achieved through the following technical solutions:
[0005] A safe distillation device for recovering petroleum ether, comprising a reactor, a primary shell-and-tube condenser, a secondary shell-and-tube condenser and a recovery tank connected in sequence through pipelines, a jacket is arranged on the outside of the reactor, hot water is introduced into the jacket, and the petroleum ether is distilled and vaporized, condensed and liquefied by the primary shell-and-tube condenser and the secondary shell-and-tube condenser, and then enters the recovery tank;
[0006] The reactor is provided with a stirring assembly, which comprises a lifting ring, a motor is fixed at the lower end of the ring, and a plurality of stirring blades are fixed on the driving shaft of the motor.
[0007] Furthermore, the reactor comprises a cylinder with open ends at both the upper and lower ends, and an upper cover and a lower cover are respectively fixed to the upper and lower ends of the cylinder by bolts.
[0008] Furthermore, the outer ring of the circular ring cooperates with the inner ring of the cylinder.
[0009] Furthermore, a detection port is provided at the upper end of the upper cover, and the end face of the detection port is sealed by transparent glass. A video monitoring device is provided on one side of the reactor, and the video monitoring device observes and monitors the rising of bubbles in the mixture inside the reactor through the detection port.
[0010] Furthermore, an air outlet pipe is provided at the upper end of the upper cover, and the petroleum ether vaporized by heating and distillation is discharged from the reaction kettle through the air outlet pipe.
[0011] Furthermore, a discharge pipe is provided at the lower end of the lower cover, and a valve is provided on the discharge pipe.
[0012] Furthermore, sealing gaskets are provided between the upper cover, the lower cover and the cylinder.
[0013] Furthermore, a thermometer and a pressure gauge are provided in the reactor to measure the temperature and pressure in the reactor respectively.
[0014] Furthermore, the distillation device also includes a cold water tank, which is connected to the primary shell and tube condenser and the secondary shell and tube condenser through a valve and a water pipe.
[0015] Beneficial effects of the utility model:
[0016] 1. A reactor, a primary shell-and-tube condenser, a secondary shell-and-tube condenser and a recovery tank are sequentially connected by pipelines, and hot water is introduced into the jacket of the reactor to heat the grease mixture, thereby distilling and separating petroleum ether from the grease, and then condensing and liquefying it through the primary shell-and-tube condenser and the secondary shell-and-tube condenser, and then flowing into the recovery tank for centralized recovery.
[0017] 2. A stirring assembly is arranged in the reactor, a lifting ring is arranged in the stirring assembly, and a motor is arranged at the lower end of the ring to drive the stirring blades to stir the grease mixture, so that the petroleum ether in the grease mixture is heated more evenly, thereby accelerating the distillation and vaporization of the petroleum ether and improving the adequacy of the distillation and separation of the petroleum ether.
[0018] 3. By matching the outer diameter of the ring with the inner cavity of the cylinder, the ring descends under the drive of the cylinder, so that the grease attached to the inner wall of the cylinder can be scraped off, thereby improving the convenience of cleaning the inner wall of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a structural principle diagram of the distillation device of the utility model;
[0021] Figure 2 It is a schematic diagram of the structure of the reactor of the utility model;
[0022] Figure 3 It is a schematic diagram of the cylinder structure of the utility model;
[0023] Figure 4 It is a schematic diagram of the upper cover structure of the utility model;
[0024] Figure 5It is a schematic diagram of the lower cover structure of the utility model;
[0025] Figure 6 It is a schematic diagram of the structure of the stirring assembly of the utility model. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] Example 1
[0028] like Figure 1 As shown, a safe distillation device for recovering petroleum ether comprises a reactor 6, a primary shell-and-tube condenser 1, a secondary shell-and-tube condenser 2 and a recovery tank 4 which are sequentially connected by pipelines. A mixture of oil and petroleum ether is in the reactor 6. The oil mixture in the reactor 6 is heated to distill and separate the petroleum ether from the oil. The gaseous petroleum ether separated by distillation is condensed and liquefied by the primary shell-and-tube condenser 1 and the secondary shell-and-tube condenser 2, and then flows into the recovery tank 4 for centralized recovery.
[0029] In this embodiment, the distillation device also includes a cold water tank 3, which is connected to the primary shell and tube condenser 1 and the secondary shell and tube condenser 2 through valves and water pipes to provide cooling water for the primary shell and tube condenser 1 and the secondary shell and tube condenser 2.
[0030] The reactor 6 is provided with a thermometer 7 and a pressure gauge 8 to measure the temperature and pressure in the reactor 6 respectively.
[0031] Example 2
[0032] In this embodiment, the internal structure of the reaction kettle 6 in Example 1 is further described;
[0033] like Figures 2 to 5 As shown, the reaction kettle 6 includes a cylinder 61, the upper and lower ends of the cylinder 61 are open, and are sealed by respectively arranging an upper cover 62 and a lower cover 63 at the upper and lower ends of the cylinder 61;
[0034] In this embodiment, flanges 611 are provided at both upper and lower ends of the cylinder 61, an upper disc 621 is provided at the lower end of the upper cover 62, and a lower disc 631 is provided at the upper end of the lower cover 63. The upper disc and the lower disc 631 are respectively fixed to the flanges 611 at the upper and lower ends of the cylinder 61 by bolt connection, so as to realize the detachable fixation between the upper cover 62, the lower cover 63 and the cylinder 61, so as to facilitate the cleaning and maintenance of the interior of the reactor 6 at a later stage.
[0035] In addition, a sealing gasket is provided between the upper cover 62, the lower cover 63 and the cylinder 61 to ensure the sealing of the connection;
[0036] Of course, in some embodiments, the cylinder 61 and the upper cover 62 and the lower cover 63 can also be fixed by welding. However, it is not easy to disassemble after welding, which obviously brings inconvenience to the subsequent cleaning and maintenance.
[0037] An air outlet pipe 622 is provided at the upper end of the upper cover 62, and the petroleum ether vaporized by heating and distillation is discharged from the reaction kettle 6 through the air outlet pipe 622 and enters the first-stage shell-and-tube condenser 1 for condensation operation; and a discharge pipe 632 is opened at the lower end of the lower cover 63, and a valve is provided on the discharge pipe 632, so that after the distillation and separation of the petroleum ether is completed, the valve can be opened to discharge the grease from the reaction kettle 6.
[0038] In addition, in this embodiment, a detection port 623 is opened at the upper end of the upper cover 62, and the end face of the detection port 623 is sealed by transparent glass. A video monitoring device 5 is arranged on one side of the reactor 6. The video monitoring device 5 observes and monitors the rising of bubbles in the mixture inside the reactor 6 through the detection port.
[0039] It is worth mentioning that a jacket 64 is welded to the outside of the reactor 6 , and hot water is passed through the jacket 64 to heat the mixture of grease and petroleum ether in the reactor 6 .
[0040] A stirring assembly 65 is provided in the reaction kettle 6. Figure 6 As shown, the stirring assembly 65 includes a cylinder 651 fixed to the upper end of the upper cover 62, a ring 652 is fixed to the end of the drive shaft of the cylinder 651, a motor 653 is fixed at the center of the ring 652, and a plurality of stirring blades 654 are fixed to the end of the drive shaft of the motor 653. Driven by the motor 653, the stirring blades 654 stir the grease mixture inside the reactor 6, so that the grease mixture (petroleum ether) is heated more evenly, so as to accelerate the distillation and vaporization of petroleum ether and improve the adequacy of the distillation and separation of petroleum ether.
[0041] It is worth mentioning that during the stirring process, the cylinder 651 is used to adjust the height of the stirring blade 654 according to the liquid level of the grease mixture to ensure that the stirring blade 654 acts on the grease mixture; in addition, when the depth of the grease mixture is greater than the height of the stirring blade 654, the stirring blade 654 can be controlled to reciprocate and rise and fall in the vertical direction to ensure that the stirring blade 654 acts on the full depth of the grease mixture, thereby improving the stirring effect.
[0042] In this embodiment, the outer ring 652 cooperates with the inner cavity of the cylinder 61. When the inner wall of the cylinder 61 needs to be cleaned, the lower cover 63 is first removed, and the control cylinder 651 drives the ring 652 to descend, so that the grease attached to the inner wall of the cylinder 61 can be scraped off, thereby improving the convenience of cleaning the inner wall of the cylinder 61.
[0043] Working principle:
[0044] By setting a reactor 6, a first-stage tube-and-tube condenser 1, a second-stage tube-and-tube condenser 2, and a recovery tank 4 connected by pipelines in sequence, and passing hot water into the jacket 64 of the reactor 6 to heat the grease mixture, the petroleum ether is distilled and separated from the grease, and then condensed and liquefied through the first-stage tube-and-tube condenser 1 and the second-stage tube-and-tube condenser 2, and then flows into the recovery tank 4 for centralized recovery; by setting a stirring assembly 65 in the reactor 6, a lifting ring 652 is set in the stirring assembly 65, and a motor is set at the lower end of the ring 652 to drive the stirring blade 654 to stir the grease mixture, so that the petroleum ether in the grease mixture is heated more evenly, so as to accelerate the distillation and vaporization of the petroleum ether, and improve the adequacy of the distillation and separation of the petroleum ether. By matching the outer diameter of the ring 652 with the inner cavity of the cylinder 61, the lower ring 652 is driven by the cylinder 651 to descend, so that the grease attached to the inner wall of the cylinder 61 can be scraped off, so as to improve the convenience of cleaning the inner wall of the cylinder 61.
[0045] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0046] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.
Claims
1. A safe distillation device for recovering petroleum ether, characterized in that: The invention comprises a reaction kettle (6), a first-stage shell-and-tube condenser (1), a second-stage shell-and-tube condenser (2) and a recovery tank (4) which are connected in sequence through pipelines. A jacket (64) is arranged outside the reaction kettle (6). Hot water is introduced into the jacket (64). After petroleum ether is distilled and vaporized, it is condensed and liquefied by the first-stage shell-and-tube condenser (1) and the second-stage shell-and-tube condenser (2) and then enters the recovery tank (4). The reactor (6) is provided with a stirring assembly (65), which comprises a lifting ring (652), a motor (653) being fixed at the lower end of the ring (652), and a plurality of stirring blades being fixed on the driving shaft of the motor (653).
2. A safe distillation device for recovering petroleum ether according to claim 1, characterized in that: The reaction kettle (6) comprises a cylinder (61) with open ends at both the upper and lower ends. An upper cover (62) and a lower cover (63) are respectively fixed to the upper and lower ends of the cylinder (61) by bolts.
3. A safe distillation device for recovering petroleum ether according to claim 2, characterized in that: The outer ring of the circular ring (652) cooperates with the inner ring of the cylinder (61).
4. A safe distillation device for recovering petroleum ether according to claim 2, characterized in that: The upper end of the upper cover (62) is provided with a detection port (623), the end face of the detection port (623) is sealed by transparent glass, and a video monitoring device (5) is provided on one side of the reaction kettle (6). The video monitoring device (5) monitors the rising of bubbles in the mixture inside the reaction kettle (6) through the detection port (623).
5. A safe distillation device for recovering petroleum ether according to claim 2, characterized in that: The upper end of the upper cover (62) is provided with an air outlet pipe (622), and the petroleum ether vaporized by heating and distillation is discharged from the reaction kettle (6) through the air outlet pipe (622).
6. A safe distillation device for recovering petroleum ether according to claim 2, characterized in that: A discharge pipe (632) is provided at the lower end of the lower cover (63), and a valve is provided on the discharge pipe (632).
7. A safe distillation device for recovering petroleum ether according to claim 2, characterized in that: Sealing gaskets are arranged between the upper cover (62), the lower cover (63) and the cylinder (61).
8. A safe distillation device for recovering petroleum ether according to claim 1, characterized in that: The reactor (6) is provided with a thermometer (7) and a pressure gauge (8) to measure the temperature and pressure in the reactor (6) respectively.
9. A safe distillation device for recovering petroleum ether according to claim 1, characterized in that: The distillation device further comprises a cold water tank (3), which is connected to the primary shell-and-tube condenser (1) and the secondary shell-and-tube condenser (2) through a valve and a water pipe.