A n-propanol distillation tower with wastewater collection structure
By designing a structure in which the cylinder drives the siphon in the n-propanol distillation tower, the problem of long-term operation of sewage pumps and turbine blockage in the prior art is solved, and efficient automatic drainage and discharge of wastewater is achieved.
Patent Information
- Application Number
- CN202420940421.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-02
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-05-02
AI Technical Summary
When the existing n-propanol distillation tower discharges wastewater, the sewage pump needs to be operated all the time, and it is prone to turbine structure blockage, affecting the wastewater discharge efficiency.
A n-propanol distillation tower with a wastewater collection structure was designed. The cylinder was used to drive the siphon to move up and down. The negative pressure inside the siphon automatically drained wastewater. The entire water diversion circuit was a tubular structure to reduce stain residue.
Automatic wastewater drainage is achieved, reducing the operating time of sewage pumps and stain residues, and improving the wastewater discharge efficiency.
Smart Images
Figure CN222723634U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distillation and purification of n-propanol, in particular to an n-propanol distillation tower with a wastewater collection structure. Background Art
[0002] The distillation of n-propanol is a process of separating n-propanol from other impurities, usually carried out using a distillation tower. The following are the general steps of the distillation of n-propanol: Feeding: A mixture containing n-propanol and impurities is fed into the distillation tower. Heating and evaporation: In the distillation tower, the mixture is heated to evaporate and form steam. Vapor-liquid exchange: The steam rises in the tower and exchanges vapor with the descending liquid. The light components in the steam (such as n-propanol) are gradually concentrated, while the heavy components in the liquid (such as impurities) are gradually concentrated. Condensation and reflux: The steam is cooled by the condenser at the top of the tower, condensed into liquid, and partially refluxed into the tower to provide sufficient vapor-liquid exchange. Product collection: At the appropriate position of the tower, the n-propanol product with higher purity is collected. Bottom discharge: The liquid at the bottom of the tower contains a higher concentration of heavy components and a small amount of n-propanol, which is usually discharged or further processed. In the process of n-propanol distillation, some parameters need to be controlled, such as feed amount, heating temperature, reflux ratio, etc., to ensure the purity and yield of the product. In addition, some optimization measures can be adopted to improve the distillation efficiency, such as selecting the appropriate tower plate type, using efficient extractants or entrainers, etc.
[0003] At present, in the process of discharging wastewater from the n-propanol distillation tower, a sewage pump is often used to discharge the residue. The sewage pump needs to run all the time when discharging wastewater, and the turbine structure inside the sewage pump is prone to residue blockage, which affects the discharge efficiency of the wastewater. Utility Model Content
[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.
[0005] To this end, the first purpose of the utility model is to provide a propanol distillation tower with a wastewater collection structure, the wastewater is automatically drained out by siphon action, and the entire water diversion loop is a tubular structure to reduce stain residue.
[0006] To achieve the above-mentioned purpose, the first aspect of the utility model proposes a n-propanol distillation tower with a wastewater collection structure, comprising a distillation tower body and a wastewater collection mechanism arranged inside the distillation tower body, the wastewater collection mechanism comprising a drainage pipe, a cylinder, a fixed cylinder, a siphon pipe and a water suction pipe, wherein the water suction pipe is arranged at the bottom of the distillation tower body, a first one-way valve plate is arranged inside the water suction pipe, the siphon pipe is sleeved on the top of the water suction pipe, the cylinder is arranged inside the distillation tower body, and the power shaft of the cylinder is connected to the siphon pipe, the fixed cylinder is connected to the top water outlet end of the siphon pipe, and the fixed cylinder is connected to the drainage pipe.
[0007] In addition, the n-propanol distillation tower with a wastewater collection structure proposed in the utility model may also have the following additional technical features:
[0008] Furthermore, a first piston ring is provided on the inner circumferential wall of the bottom of the siphon tube, a force-bearing seat is provided on the outside of the siphon tube, and the power shaft of the cylinder is connected to the force-bearing seat.
[0009] Furthermore, a transfer pipe is arranged at the top of the siphon pipe, a second piston ring is arranged on the outer circumferential wall of the top of the transfer pipe, and a second one-way valve plate is arranged at the top of the transfer pipe.
[0010] Furthermore, the fixed cylinder is fixedly arranged inside the distillation tower body, and the fixed cylinder is sleeved outside the transfer pipe.
[0011] Furthermore, a water inlet groove is provided at the bottom of the water suction pipe, and a limiting ring for limiting the rising position of the first piston ring is provided at the top of the water suction pipe.
[0012] Furthermore, a detachable mounting joint is provided on the drainage tube, and an elbow is provided at the discharge end of the drainage tube.
[0013] Beneficial effects: The utility model drives the siphon tube to move up and down reciprocatingly through the cylinder, and negative pressure is generated inside the siphon tube to gradually drain the waste water inside the distillation tower. After the waste water is drained, the cylinder can stop moving, and the waste water is automatically drained out by the siphon effect. The entire water diversion circuit is a tubular structure, which reduces stains.
[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0016] Figure 1This is a schematic structural diagram of a n-propanol distillation tower with a wastewater collection structure according to one embodiment of the utility model;
[0017] Figure 2 A cross-sectional view of a wastewater collection mechanism in a n-propanol distillation tower having a wastewater collection structure according to one embodiment of the utility model;
[0018] Figure 3 It is a partial cross-sectional view of a wastewater collecting mechanism in a n-propanol distillation tower having a wastewater collecting structure according to one embodiment of the utility model.
[0019] As shown in the figure: 1. Distillation tower body; 2. Wastewater collection mechanism; 21. Cylinder; 22. Fixed cylinder; 23. Transfer pipe; 231. Second one-way valve plate; 232. Second piston ring; 24. Siphon; 241. Bearing seat; 25. Suction pipe; 251. First piston ring; 252. Water inlet trough; 253. First one-way valve plate; 254. Limiting ring; 3. Drainage pipe; 31. Installation joint; 32. Elbow. DETAILED DESCRIPTION
[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.
[0021] The following describes the n-propanol distillation tower with a wastewater collection structure according to an embodiment of the utility model in conjunction with the accompanying drawings.
[0022] like Figure 1-3 As shown, the n-propanol distillation tower with a wastewater collection structure provided by the embodiment of the utility model includes a distillation tower body 1 and a wastewater collection mechanism 2 arranged inside the distillation tower body 1, the wastewater collection mechanism 2 includes a drainage pipe 3, a cylinder 21, a fixed cylinder 22, a siphon 24 and a water suction pipe 25, wherein the water suction pipe 25 is arranged at the bottom of the distillation tower body 1, a first one-way valve plate 253 is arranged inside the water suction pipe 25, the siphon 24 is sleeved on the top of the water suction pipe 25, the cylinder 21 is arranged inside the distillation tower body 1, and the power shaft of the cylinder 21 is connected to the siphon 24, the fixed cylinder 22 is connected to the top water outlet end of the siphon 24, and the fixed cylinder 22 is connected to the drainage pipe 3.
[0023] Specifically, the n-propanol distillation tower with a wastewater collection structure of the utility model drives the siphon tube 24 to move back and forth up and down through the cylinder 21. Negative pressure is generated inside the siphon tube 24 to gradually drain the wastewater inside the water suction pipe 25. After the wastewater is drained, the wastewater is automatically drained out by the siphon effect. At this time, the cylinder 21 can stop moving, and the entire water diversion circuit is a tubular structure to reduce residual stains.
[0024] In one embodiment of the present invention, Figure 3 As shown, a first piston ring 251 is provided on the inner circumferential wall at the bottom of the siphon tube 24, a bearing seat 241 is provided on the outside of the siphon tube 24, and a power shaft of the cylinder 21 is connected to the bearing seat 241 to drive the siphon tube 24 to move up and down. A transfer tube 23 is provided on the top of the siphon tube 24, a second piston ring 232 is provided on the outer circumferential wall at the top of the transfer tube 23, and a second one-way valve plate 231 is provided on the top of the transfer tube 23.
[0025] Specifically, when the cylinder 21 drives the siphon tube 24 to rise, the siphon tube 24 moves upward relative to the water suction pipe 25, the internal space of the siphon tube 24 becomes larger, and negative pressure is generated inside the siphon tube 24. The second one-way valve plate 231 at the top of the siphon tube 24 is closed by the negative pressure, and the first one-way valve plate 253 at the bottom of the siphon tube 24 is opened by the negative pressure, and the wastewater at the bottom of the distillation tower body 1 enters the siphon tube 24 through the water inlet groove 252. When the siphon tube 24 moves downward again, the first one-way valve plate 253 is closed by the gravity of the internal wastewater, and the second one-way valve plate 231 is opened upward by the water pressure, and the wastewater enters the fixed cylinder 22 and the drainage pipe 3 in turn.
[0026] When the siphon tube 24 moves up and down, the first piston ring 251 at the bottom of the siphon tube 24 and the second piston ring 232 at the upper end of the transfer tube 23 maintain the airtightness of the connection between the fixed cylinder 22, the siphon tube 24 and the water suction pipe 25.
[0027] In one embodiment of the present invention, Figure 2 As shown, the fixed cylinder 22 is fixedly arranged inside the distillation tower body 1, and the fixed cylinder 22 is sleeved on the outside of the transfer pipe 23. Since the top of the fixed cylinder 22 is connected to the drainage pipe 3, the fixed pipe and the drainage pipe 3 will not move during the up and down movement of the siphon pipe 24, so that the wastewater can be discharged more smoothly. A water inlet groove 252 is provided at the bottom of the water suction pipe 25, and a limit ring 254 is provided at the top of the water suction pipe 25 for limiting the rising position of the first piston ring 251.
[0028] In one embodiment of the present invention, Figure 2As shown, a detachable mounting joint 31 is provided on the drainage pipe 3 to facilitate the disassembly and maintenance of the drainage pipe 3. An elbow 32 is provided at the discharge end of the drainage pipe 3. When the water flow inside the drainage pipe 3 stops, moisture is stored inside the recessed part of the elbow 32, which plays a role in isolating the air inside and outside the distillation tower body 1 to prevent pollution.
[0029] In order to clearly explain the above embodiments, refer to Figure 1-3 The specific working principle of the n-propanol distillation tower with wastewater collection structure of the utility model is as follows:
[0030] In the process of discharging the waste water at the bottom of the distillation tower body 1, the ventilation of the cylinder 21 drives the siphon tube 24 to move up and down. In the process of the siphon tube 24 rising, the siphon tube 24 moves upward relative to the water suction pipe 25, and the internal space of the siphon tube 24 becomes larger, so a negative pressure is generated inside the siphon tube 24. The second one-way valve plate 231 at the top of the siphon tube 24 is closed by the negative pressure, and the first one-way valve plate 253 at the bottom of the siphon tube 24 is opened by the negative pressure. The waste water at the bottom of the distillation tower body 1 enters the siphon tube 24 through the water inlet groove 252. When the siphon tube 24 moves downward again, the first one-way valve plate 253 is closed by the gravity of the water inside the siphon tube 24, and the second one-way valve plate 231 is pushed upward by the water pressure. The waste water enters the fixed cylinder 22 and the drainage tube 3 in turn and is discharged through the drainage tube 3.
[0031] In summary, the n-propanol distillation tower with a wastewater collection structure in the embodiment of the utility model drives the siphon tube to move back and forth up and down through the cylinder, and the negative pressure is generated inside the siphon tube to gradually drain the wastewater inside the distillation tower. After the wastewater is drained, the cylinder can stop moving, and the wastewater is automatically drained out by the siphon effect, and the entire water diversion circuit is a tubular structure to reduce residual stains.
[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.
Claims
1. A n-propanol distillation tower with a wastewater collection structure, characterized in that: The invention comprises a distillation tower body (1) and a wastewater collection mechanism (2) arranged inside the distillation tower body (1), wherein the wastewater collection mechanism (2) comprises a drainage pipe (3), a cylinder (21), a fixed cylinder (22), a siphon pipe (24) and a water suction pipe (25), wherein the water suction pipe (25) is arranged at the bottom of the distillation tower body (1), a first one-way valve plate (253) is arranged inside the water suction pipe (25), the siphon pipe (24) is sleeved on the top of the water suction pipe (25), the cylinder (21) is arranged inside the distillation tower body (1), and the power shaft of the cylinder (21) is connected to the siphon pipe (24), the fixed cylinder (22) is connected to the top water outlet end of the siphon pipe (24), and the fixed cylinder (22) is connected to the drainage pipe (3).
2. The n-propanol distillation tower with a wastewater collection structure according to claim 1, characterized in that: A first piston ring (251) is provided on the inner circumferential wall of the bottom of the siphon tube (24), a force bearing seat (241) is provided outside the siphon tube (24), and a power shaft of the cylinder (21) is connected to the force bearing seat (241).
3. The n-propanol distillation tower with a wastewater collection structure according to claim 2, characterized in that: A transfer pipe (23) is arranged at the top of the siphon pipe (24), a second piston ring (232) is arranged on the outer circumferential wall of the top of the transfer pipe (23), and a second one-way valve plate (231) is arranged at the top of the transfer pipe (23).
4. The n-propanol distillation tower with a wastewater collection structure according to claim 3, characterized in that: The fixed cylinder (22) is fixedly arranged inside the distillation tower body (1), and the fixed cylinder (22) is sleeved outside the transfer pipe (23).
5. The n-propanol distillation tower with a wastewater collection structure according to claim 2, characterized in that: A water inlet groove (252) is provided at the bottom of the water suction pipe (25), and a limiting ring (254) for limiting the rising position of the first piston ring (251) is provided at the top of the water suction pipe (25).
6. The n-propanol distillation tower with a wastewater collection structure according to claim 1, characterized in that: The drainage pipe (3) is provided with a detachable mounting joint (31), and the discharge end of the drainage pipe (3) is provided with an elbow (32).