Front distillation receiving tank with metering function

Abstract

The utility model discloses a front distillation receiving tank with a metering function, which comprises a tank body, a partition plate is fixedly arranged in the tank body, the side surface of the lower end of the tank body is connected with a gas inlet end, the upper end of the tank body is fixedly connected with a gas outlet end and a liquid inlet pipe, and one end of the liquid inlet pipe, which is positioned in the tank body, is fixedly connected with a heat exchange pipe; a liquid outlet pipe is fixedly connected to the upper end of the heat exchange pipe, a first flow guide hole and a second flow guide hole are formed in the surfaces of the adjacent partition plates correspondingly, a metering mechanism is arranged at the lower end of the tank body, and closed liquid outlet is achieved through fluid flowing. According to the front distillation receiving tank with the metering function, the rotary disc is arranged on one side of the lower end of the tank body, so that the rotary disc can continuously discharge materials through continuous rotation under the condition that the tank body and the external environment are kept closed; therefore, when the cavity at the lower end of the tank body is full, the front fraction can be directly discharged without stopping distillation.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation, in particular to a pre-distillation receiving tank with a metering function. Background Art

[0002] The principle of distillation can be simply summarized as follows: first heat the mixture, and when the boiling point of one of the components is reached, this component will begin to evaporate first, and then condense back into liquid, and finally a pure component can be obtained. Fractionation is a widely used chemical separation technology. It can separate different components in a mixture according to the different degrees of their boiling points. The principle of distillation is based on the different boiling points of different components in the mixture, so that after heating, different components evaporate in turn, and are separated through certain devices, and finally a pure single component is obtained. The principle of distillation is based on the different boiling points of different components at different temperatures. When the mixture is heated, the component with a low boiling point begins to evaporate first, and the component with a high boiling point remains in the mixture. By continuously increasing the temperature, each component in the mixture will evaporate within a certain temperature range until all components are evaporated. In the process of distillation, In the process, it is necessary to separate the different evaporated components through a certain device, and finally obtain a pure single component. In order to achieve this goal, the device commonly used is a distillation tower. The distillation tower is a vertical cylindrical container, which is divided into multiple layers inside, and each layer is connected by holes. Through this device, the different evaporated components will be brought to the corresponding strata and finally separated. Among them, the fore fraction refers to the component that is distilled first in the atmospheric distillation process. In the process of collecting the fore fraction, the capacity of the fore fraction that can be collected at a single time depends entirely on the capacity of the receiving tank. When the receiving tank is full during the collection process, the fore fraction cannot be collected continuously, which is not conducive to the continuous distillation of large quantities of chemical products. At the same time, when it is necessary to collect the fore fraction quantitatively, it is necessary to observe the scale of the collection container at all times, which increases the difficulty of collecting the fore fraction for the staff. Utility Model Content

[0003] The utility model aims to provide a fore-distillation receiving tank with a metering function, so as to solve the problems in the above-mentioned background technology that a large amount of fore-distillation fractions cannot be continuously collected and cannot be quantitatively collected.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pre-distillation receiving tank with a metering function, comprising a tank body, a partition plate is fixedly arranged inside the tank body, and the lower end side surface of the tank body is connected to the air inlet end, the upper end of the tank body is fixedly connected to the air outlet end and the liquid inlet pipe, and the end of the liquid inlet pipe located inside the tank body is fixedly connected to the heat exchange pipe, and the upper end of the heat exchange pipe is fixedly connected to the liquid outlet pipe, the adjacent surfaces of the partition plate are respectively provided with a first guide hole and a second guide hole, and the lower end of the tank body is provided with a metering mechanism, which realizes closed liquid discharge by utilizing fluid flow.

[0005] Preferably, the first guide hole and the second guide hole are respectively located at the two opposite ends of two adjacent partition plates, the end of the liquid inlet pipe connected to the heat exchange pipe is located inside the lower end of the tank body, and the heat exchange pipe is spirally designed, and the air outlet end and one end of the liquid outlet pipe pass through the upper surface of the tank body.

[0006] By adopting the above technical solution, the front fraction can be condensed and collected inside the tank.

[0007] Preferably, the metering mechanism includes: a buoyancy ring, which is slidably mounted in the internal cavity at the lower end of the tank body, and the lower bottom surface of the tank body is fixedly connected to a dewatering valve, and a sliding limit rod is installed inside the lower side surface of the tank body, and a closing plate is fixedly provided on the outer surface of the limit rod, a rotating sliding disk and a turntable are installed on the lower side surface of the tank body, and a leakage hole is provided on the outer surface of the turntable, a limiting block is fixedly provided on the side surface of the sliding disk, an injection pipe is connected to the outer surface of the turntable, a rotating adjusting bolt is installed on the outer surface of the turntable, a power box is fixedly provided on the lower side surface of the tank body, and one end of the power box is fixedly connected to a driving pipe, and a rotating impeller is installed inside the power box.

[0008] By adopting the above technical solution, the condensate inside the tank body can be automatically and continuously discharged.

[0009] Preferably, the buoyancy ring is a ring made of lightweight material, and a makeshift groove is provided at one end of the buoyancy ring facing the limiting rod, and the buoyancy ring partially overlaps with the vertical projection of the limiting rod. The limiting rod is L-shaped, and the outer surface of the closing plate fits with the inner surface of the internal cavity at the lower end of the tank body where the buoyancy ring is located.

[0010] By adopting the above technical solution, the closing plate can keep the inner cavity of the lower end of the tank body relatively closed.

[0011] Preferably, the sliding plate is slidably connected to the turntable through a leakage hole, and the lower end of the leakage hole is a hollow tubular design protruding from the lower surface of the turntable, and the lower end surface of the leakage hole is fitted with the upper end surface of the injection pipe, the limit blocks are evenly distributed on the outer surface of the sliding plate, and the lower end of the injection pipe passes through the inner surface of the cavity at the lower end of the tank body where the buoyancy ring is located.

[0012] By adopting the above technical solution, the injection pipe can inject liquid to drive the buoyancy ring to float up.

[0013] Preferably, the lower end of the adjusting bolt passes through the outer surface of the sliding plate, and the adjusting bolt is threadedly connected to the sliding plate.

[0014] By adopting the above technical solution, the distance between the sliding plate and the rotating plate can be changed.

[0015] Preferably, the outer surface of the power box is penetrated by one end of the liquid inlet pipe and the drive pipe respectively, the outer surface of the impeller is in contact with the inner surface of the power box, and the rotating shaft of the impeller is fixedly connected to the rotating shaft of the turntable.

[0016] By adopting the above technical solution, the impeller can drive the sliding plate and the rotating plate to rotate under the impact of the fluid.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the pre-distillation receiving tank with metering function:

[0018] 1. A rotating turntable is arranged at one side of the lower end of the tank body, so that the turntable can continuously discharge materials while keeping the tank body and the external environment closed through continuous rotation, so that when the cavity at the lower end of the tank body is full, the front fraction can be directly discharged without stopping the distillation;

[0019] 2. Furthermore, by arranging a buoyancy ring inside the cavity at the lower end of the tank body, when the liquid level inside the cavity at the lower end of the tank body reaches the standard, the buoyancy ring can limit the sliding plate through the limiting rod to prevent the sliding plate and the rotating plate from continuing to discharge liquid, thereby achieving the purpose of quantitative collection;

[0020] 3. Furthermore, the impeller is driven by the liquid flowing in the liquid inlet pipe, so that the tank can automatically and continuously discharge the liquid without additional operation to avoid the accumulation of the front fraction inside the tank and the inability to discharge it due to human error. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the connection between the tank body and the outlet valve of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the cut surface connecting the tank body and the limit rod of the utility model;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of the connecting section of the partition plate, the first guide hole and the second guide hole of the utility model;

[0026] Figure 6 This is a three-dimensional structural schematic diagram of the cut surface connecting the tank body and the injection pipe of the utility model;

[0027] Figure 7 It is a three-dimensional structural schematic diagram of the cross-section surface of the connection between the power box and the impeller of the utility model.

[0028] In the figure: 1. tank body; 2. partition plate; 3. air inlet end; 4. first guide hole; 5. second guide hole; 6. air outlet end; 7. liquid inlet pipe; 8. heat exchange pipe; 9. liquid outlet pipe; 10. buoyancy ring; 11. outlet valve; 12. limit rod; 13. closing plate; 14. sliding plate; 15. turntable; 16. leakage hole; 17. limit block; 18. injection pipe; 19. adjusting bolt; 20. power box; 21. drive pipe; 22. impeller. DETAILED DESCRIPTION

[0029] 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 in 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.

[0030] See also Figure 1-7 The utility model provides a technical solution: a front distillation receiving tank with a metering function.

[0031] Embodiment 1

[0032] The present embodiment discloses: a tank body 1, a partition plate 2 is fixedly arranged inside the tank body 1, and an air inlet end 3 is connected to the lower end side surface of the tank body 1, an air outlet end 6 and a liquid inlet pipe 7 are fixedly connected to the upper end of the tank body 1, and a heat exchange pipe 8 is fixedly connected to one end of the liquid inlet pipe 7 located inside the tank body 1, and a liquid outlet pipe 9 is fixedly connected to the upper end of the heat exchange pipe 8, and a first guide hole 4 and a second guide hole 5 are respectively opened on the surface of adjacent partition plates 2;

[0033] The first guide hole 4 and the second guide hole 5 are respectively located at two opposite ends of two adjacent partition plates 2, one end of the liquid inlet pipe 7 connected to the heat exchange pipe 8 is located inside the lower end of the tank body 1, and the heat exchange pipe 8 is designed in a spiral shape, and the gas outlet end 6 and one end of the liquid outlet pipe 9 pass through the upper surface of the tank body 1;

[0034] During distillation, first, cooling liquid is injected into the heat exchange tube 8 in the tank body 1 through the liquid inlet pipe 7, and then the steam of the front fraction is injected into the tank body 1 through the air inlet end 3. At this time, the whole is discharged from bottom to top through the first guide hole 4 and the second guide hole 5 on the surface of the adjacent partition plate 2 through the air outlet end 6. In the process, the steam contacts the heat exchange tube 8, condenses and drips into the tank body 1 to be collected, and the heat exchanged cooling liquid is discharged upward through the liquid outlet pipe 9.

[0035] Embodiment 2

[0036] This embodiment is based on the embodiment 1 and discloses that: a metering mechanism is provided at the lower end of the tank body 1 to realize closed liquid discharge by utilizing fluid flow;

[0037] The metering mechanism includes: a buoyancy ring 10, which is slidably mounted in the internal cavity of the lower end of the tank body 1, and a dewatering valve 11 is fixedly connected to the bottom surface of the lower end of the tank body 1, and a sliding limit rod 12 is installed inside the lower end side surface of the tank body 1, and a closing plate 13 is fixedly arranged on the outer surface of the limit rod 12, a rotating sliding disk 14 and a rotating disk 15 are installed on the lower end side surface of the tank body 1, and a leakage hole 16 is opened on the outer surface of the rotating disk 15, and a limit block 17 is fixedly arranged on the side surface of the sliding disk 14, an injection pipe 18 is connected to the outer surface of the lower end of the tank body 1, and a rotating adjusting bolt 19 is installed on the outer surface of the rotating disk 15, a power box 20 is fixedly arranged on the lower end side surface of the tank body 1, and one end of the power box 20 is fixedly connected to a driving pipe 21, and a rotating impeller 22 is installed inside the power box 20;

[0038] The buoyancy ring 10 is a ring made of a light material, and a clearance groove is provided at one end of the buoyancy ring 10 facing the limiting rod 12, and the vertical projections of the buoyancy ring 10 and the limiting rod 12 partially overlap, the limiting rod 12 is L-shaped, and the outer surface of the closing plate 13 fits with the inner surface of the inner cavity at the lower end of the tank body 1 where the buoyancy ring 10 is located;

[0039] The sliding plate 14 is slidably connected to the rotating plate 15 through the leakage hole 16, and the lower end of the leakage hole 16 is a hollow tubular design protruding from the lower surface of the rotating plate 15, and the lower end surface of the leakage hole 16 is in contact with the upper end surface of the injection pipe 18, and the limit blocks 17 are evenly distributed on the outer surface of the sliding plate 14, and the lower end of the injection pipe 18 passes through the inner surface of the cavity at the lower end of the tank body 1 where the buoyancy ring 10 is located;

[0040] The lower end of the adjusting bolt 19 passes through the outer surface of the sliding plate 14, and the adjusting bolt 19 is threadedly connected to the sliding plate 14;

[0041] The outer surface of the power box 20 is penetrated by the liquid inlet pipe 7 and one end of the driving pipe 21 respectively, the outer surface of the impeller 22 is in contact with the inner surface of the power box 20, and the rotating shaft of the impeller 22 is fixedly connected to the rotating shaft of the rotating disk 15;

[0042] The cooling liquid is injected into the power box 20 through the driving pipe 21, and the cooling liquid drives the impeller 22 to rotate and then is discharged through the liquid inlet pipe 7. At this time, the impeller 22 drives the rotating disk 15 and the sliding disk 14 to rotate. When the leakage hole 16 on the surface of the rotating disk 15 rotates to the inside of the tank body 1, the liquid is collected, and then the leakage hole 16 rotates to bring the liquid out and rotates to the top of the injection pipe 18, and the liquid is injected downward through the injection pipe 18 into the internal cavity at the lower end of the tank body 1 where the buoyancy ring 10 is located. At this time, as the liquid level rises, the buoyancy ring 10 slides up and squeezes the limit rod 12 under the action of buoyancy, and the limit rod 12 slides up through The upper end limits the limit block 17, so that the sliding plate 14 and the turntable 15 cannot rotate to ensure that the liquid will not continue to be discharged into the internal cavity at the lower end of the tank body 1 where the buoyancy ring 10 is located. At this time, the staff found that after the sliding plate 14 stopped rotating, the outlet valve 11 was opened to collect the front fraction after quantitative collection. By turning the adjusting bolt 19 to change the distance between the sliding plate 14 and the turntable 15, the limit rod 12 changes the upward movement height required for limiting the sliding plate 14, thereby achieving the purpose of changing the quantitative collection capacity. The closing plate 13 ensures that the front fraction will not leak during the sliding process of the limit rod 12.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pre-distillation receiving tank with a metering function, comprising a tank body (1), a partition plate (2) is fixedly arranged inside the tank body (1), and a gas inlet end (3) is connected to the lower side surface of the tank body (1), a gas outlet end (6) and a liquid inlet pipe (7) are fixedly connected to the upper end of the tank body (1), and a heat exchange pipe (8) is fixedly connected to one end of the liquid inlet pipe (7) located inside the tank body (1), and a liquid outlet pipe (9) is fixedly connected to the upper end of the heat exchange pipe (8), characterized in that: The surfaces of the adjacent partition plates (2) are respectively provided with a first guide hole (4) and a second guide hole (5), and the lower end of the tank body (1) is provided with a metering mechanism to realize closed liquid discharge by utilizing fluid flow.

2. The pre-distillation receiving tank with metering function according to claim 1, characterized in that: The first flow guide hole (4) and the second flow guide hole (5) are respectively located at the two opposite ends of two adjacent partition plates (2); one end of the liquid inlet pipe (7) connected to the heat exchange pipe (8) is located inside the lower end of the tank body (1); the heat exchange pipe (8) is of spiral design; and one end of the gas outlet end (6) and the liquid outlet pipe (9) penetrate the upper surface of the tank body (1).

3. The pre-distillation receiving tank with metering function according to claim 1, characterized in that: The metering mechanism comprises: a buoyancy ring (10), the buoyancy ring (10) being slidably mounted in an internal cavity at the lower end of a tank body (1), a bottom surface of the lower end of the tank body (1) being fixedly connected to a dewatering valve (11), a sliding limit rod (12) being mounted inside a side surface of the lower end of the tank body (1), a sealing plate (13) being fixedly mounted on an outer surface of the limit rod (12), a rotating sliding plate (14) and a rotating plate (15) being mounted on the side surface of the lower end of the tank body (1), and a rotating plate (15) being fixedly mounted on the rotating plate (15). A leakage hole (16) is provided on the outer surface, a limit block (17) is fixedly provided on the side surface of the sliding plate (14), an injection pipe (18) is connected to the outer surface of the lower end of the tank body (1), a rotatable adjustment bolt (19) is installed on the outer surface of the rotating plate (15), a power box (20) is fixedly provided on the side surface of the lower end of the tank body (1), one end of the power box (20) is fixedly connected to a driving pipe (21), and a rotatable impeller (22) is installed inside the power box (20).

4. The pre-distillation receiving tank with metering function according to claim 3, characterized in that: The buoyancy ring (10) is a ring made of a lightweight material, and a clearance groove is provided at one end of the buoyancy ring (10) facing the limiting rod (12), and the vertical projections of the buoyancy ring (10) and the limiting rod (12) partially overlap, and the limiting rod (12) is of L-shaped design, and the outer surface of the closing plate (13) is in contact with the inner surface of the internal cavity at the lower end of the tank body (1) where the buoyancy ring (10) is located.

5. The pre-distillation receiving tank with metering function according to claim 3, characterized in that: The sliding plate (14) is slidably connected to the rotating plate (15) via a leakage hole (16), and the lower end of the leakage hole (16) is a hollow tubular design protruding from the lower surface of the rotating plate (15), and the lower end surface of the leakage hole (16) is in contact with the upper end surface of the injection pipe (18), the limit blocks (17) are evenly distributed on the outer surface of the sliding plate (14), and the lower end of the injection pipe (18) passes through the inner surface of the lower end cavity of the tank body (1) where the buoyancy ring (10) is located.

6. The pre-distillation receiving tank with metering function according to claim 3, characterized in that: The lower end of the adjusting bolt (19) passes through the outer surface of the sliding plate (14), and the adjusting bolt (19) is threadedly connected to the sliding plate (14).

7. The pre-distillation receiving tank with metering function according to claim 3, characterized in that: The outer surface of the power box (20) is penetrated by the liquid inlet pipe (7) and one end of the driving pipe (21), respectively, the outer surface of the impeller (22) is in contact with the inner surface of the power box (20), and the rotating shaft of the impeller (22) is fixedly connected to the rotating shaft of the rotating disk (15).

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