Vacuum low-temperature distillation equipment

Abstract

The utility model discloses vacuum low-temperature distillation equipment which comprises a distillation still, a base and a vacuum pump, the base is arranged on the bottom end face of the distillation still, and the vacuum pump is arranged at the upper end of the base. According to the equipment, the condensation tank, the copper pipes, the refrigerator and the bearing disc are arranged, when the equipment performs distillation operation, an operator controls the vacuum pump, the refrigerator and the distillation kettle through the control panel, and the multiple groups of copper pipes which are distributed in a crossed manner are arranged in the condensation tank; according to the condensation tank, the contact area of gas entering the condensation tank and the copper pipes can be increased, so that the gas entering the condensation tank can be quickly condensed into liquid, the attachment area of the copper pipes distributed in multiple groups after the gas is condensed into the liquid can be increased, the liquid is easier to form and drop, and water drops can be quickly collected by arranging the receiving disc; through the arrangement, the equipment has the effect of quickly condensing the distillation gas, and is also convenient for water quality testing and sampling.

Description

Technical Field

[0001] The utility model belongs to the technical field of vacuum low-temperature distillation, in particular to vacuum low-temperature distillation equipment. Background Art

[0002] Cryogenic distillation aims to use a vacuum pump to create a vacuum environment to reduce the boiling point of the liquid and perform distillation at a lower temperature. Cryogenic distillation equipment is mainly used in the chemical industry to improve the purity of chemical raw materials and reduce production costs. For example, cryogenic distillation technology has significant advantages in separating high-boiling point organic compounds, purifying products, and preparing high-purity chemical reagents.

[0003] The prior art has the following deficiencies: the prior art has a "vacuum low-temperature distillation device" with a publication number of CN110833700A, which "includes a bottom plate, a distillation kettle and a cooling box are fixed on the top of the bottom plate, a heating mechanism is provided on the inner wall of the bottom of the distillation kettle, and a feeding mechanism is fixed on the outer wall of the top of the distillation kettle, a motor is fixed at the center of the outer wall of the top of the distillation kettle, the output shaft of the motor passes through the inner wall of the top of the distillation kettle and a rotating shaft is fixed, a plurality of stirring rods are fixed on the outer wall of the rotating shaft, and the stirring rods are S-shaped, a connecting pipe is fixedly connected between the top of the outer wall of one side of the distillation kettle and the cooling box, one end of the connecting pipe is connected to a return pipe, the return pipe is located in the cooling box, a flow guide mechanism is fixed at the bottom end of the return pipe, the flow guide mechanism is connected to a collecting box, a vacuum pump is fixed on one side of the outer wall of the top of the collecting box, an air guide pipe is fixed on the air inlet end of the vacuum pump, and the air guide pipe is inserted in the collecting box";

[0004] The above structure can stir the raw materials in the distillation kettle to create turbulence and improve the uniformity of heating by arranging structures such as a motor, an output shaft, a rotating shaft, and a stirring rod. However, the structure does not make any improvement on the subsequent condensation of low-temperature distillation, and still uses the traditional condensation method. After the gas enters the condensation equipment, it automatically contacts the cold air for condensation. In this method, the contact area between the gas and the cold air is small, and there is no liquid accumulation location after condensation. The condensation speed is slow, and it is not convenient for operators to sample the water quality of the condensed water at any time.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] In order to solve the above problems, the purpose of the utility model is to provide a vacuum low-temperature distillation device, which solves the current problems of slow condensation speed and no convenient structure for artificial water quality sampling.

[0007] To achieve the above object, the utility model proposes a vacuum low-temperature distillation device, comprising a distillation kettle, a base, and a vacuum pump, wherein the base is arranged on the bottom end surface of the distillation kettle, the vacuum pump is arranged on the upper end of the base, and the side end of the distillation kettle is also connected to a flow pipe;

[0008] A condensation tank is provided on one side of the distillation kettle, and a connecting column is provided at the bottom of the condensation tank;

[0009] The condensation tank also includes a copper tube, a refrigerator, a receiving plate, and a handle. The copper tube is installed inside the condensation tank and is connected to each other inside the condensation tank. The refrigerator is fixedly installed outside the condensation tank, and its inner side passes through the side wall of the condensation tank and is connected to one end of the copper tube inside the condensation tank. The receiving plate is inserted into the bottom end of the condensation tank, and the handle is fixedly connected to the receiving plate outside.

[0010] In one example, a control panel is further provided on the outer end surface of the condensing tank, and there is an implicit line connection between the inner side of the control panel and the refrigerator, the vacuum pump and the distillation kettle.

[0011] In one example, the copper tubes are arranged in four layers, each layer has five groups arranged in an alternating manner, and the arrangement is rotated 90 degrees from top to bottom between every two layers.

[0012] In one example, the rear end of the vacuum pump is connected to the interior of the distillation kettle through a pipeline.

[0013] In one example, the bottom end of the base is provided with equidistantly arranged tooth structures, and the upper end is fixedly connected to the distillation kettle and the connecting column. The connecting column is provided with four groups, and the upper end thereof is connected to the bottom end of the condensation tank.

[0014] In one example, the boiling point of the distillation kettle is reduced to about 35 to 45 degrees under an internal vacuum state, and a water inlet is reserved at the bottom.

[0015] In one example, the distillation kettle is connected to the upper part of the condensation tank through a circulation pipe.

[0016] The vacuum low-temperature distillation equipment proposed by the utility model can bring the following beneficial effects: by setting a condenser, a copper tube, a refrigerator and a receiving tray, when the equipment performs distillation operation, the operator controls the vacuum pump, the refrigerator and the distillation kettle through the control panel. First, the operator starts the vacuum pump to evacuate the inside of the distillation kettle to a vacuum state, thereby reducing the boiling point inside the distillation kettle, and then the distillation kettle heats the internal liquid until the liquid boils and evaporates, and the gas evaporated from the inside of the distillation kettle floats up and enters the condenser through the circulation pipe. The operator controls the condenser to refrigerate through the control panel, and provides a copper tube connected to it for temperature transfer. The staggered multi-layer copper tube structure quickly transfers low temperature. The gas entering the distillation kettle contacts the multi-layer copper tube. The temperature reduction causes the gas to condense into water droplets, which are accumulated on the outer surface of the copper tube and gathered in the accumulation of a large amount of condensed water. Finally, it drips into the receiving tray under the action of gravity. The operator can pull out the receiving tray by holding the handle at any time and conduct spot checks on the water quality of the condensed water inside it. Through the above process, the equipment can have the following beneficial effects:

[0017] By arranging multiple groups of cross-distributed multi-layer copper tubes inside the condensation tank, the contact area between the gas entering the condensation tank and the copper tubes can be increased, so that the gas entering the condensation tank can be quickly condensed into liquid, and after the gas is condensed into liquid, the multiple groups of distributed copper tubes can increase the adhesion area, making the liquid easier to form and drip, and by setting up a receiving tray, water droplets can be quickly collected and drawn out at any time to meet water quality testing sampling. The above settings not only enable the equipment to quickly condense the distilled gas, but also facilitate water quality testing sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a vacuum low-temperature distillation device.

[0020] Figure 2 The utility model is a schematic diagram of the rear end structure of a vacuum low-temperature distillation device.

[0021] Figure 3 The utility model is a schematic diagram of the receiving plate position structure of a vacuum low-temperature distillation device.

[0022] Figure 4 The utility model is a schematic diagram of the copper tube installation position structure of a vacuum low-temperature distillation device.

[0023] In the figure: 1. distillation kettle; 2. base; 3. vacuum pump; 4. circulation pipe; 5. condenser; 501. copper pipe; 502. refrigerator; 503. receiving tray; 504. handle; 6. connecting column; 7. control panel. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0025] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0029] like Figure 1 to Figure 4 As shown, the embodiment of the utility model proposes a vacuum low-temperature distillation device, which includes a distillation kettle 1, a base 2, and a vacuum pump 3. The base 2 is arranged on the bottom end surface of the distillation kettle 1, and the base 2 supports the overall structure of the device. The vacuum pump 3 is arranged on the upper end of the base 2. The vacuum pump 3 makes the inside of the distillation kettle 1 in a vacuum state. The side end of the distillation kettle 1 is also connected to a flow pipe 4, and the flow pipe 4 serves as a channel for transferring the gas in the distillation kettle 1 to the condensation tank 5.

[0030] A condensation tank 5 is provided on one side of the distillation kettle 1. The condensation tank 5 performs condensation operation. A connecting column 6 is provided at the bottom of the condensation tank 5. The connecting column 6 supports the installation of the condensation tank 5.

[0031] The condensation tank 5 also includes a copper tube 501, a refrigerator 502, a receiving plate 503, and a handle 504. The copper tube 501 is installed inside the condensation tank 5 and is connected to each other inside the condensation tank 5. The refrigerator 502 is fixedly installed outside the condensation tank 5, and its inner side passes through the side wall of the condensation tank 5 and is connected to one end of the copper tube 501 inside the condensation tank 5. The receiving plate 503 is inserted into the bottom end of the condensation tank 5, and the handle 504 establishes a fixed connection relationship with the receiving plate 503 outside.

[0032] Specifically, a control panel 7 is also provided on the outer end surface of the condensing tank 5, and there is an implicit line connection between the inner side of the control panel 7 and the refrigerator 502, the vacuum pump 3 and the distillation kettle 1. The copper tubes 501 are arranged in four layers, and each layer is staggered with five groups, and the arrangement is turned 90 degrees from top to bottom between every two layers;

[0033] It should be noted that the staggered copper tubes 501 are equally spaced, which greatly increases the gas attachment area and direct contact area when in contact with the distilled gas;

[0034] Specifically, the rear end of the vacuum pump 3 is connected to the interior of the distillation kettle 1 by a pipeline; the bottom end of the base 2 is provided with tooth structures arranged equidistantly, and the upper end is fixedly connected to the distillation kettle 1 and the connecting column 6, and the connecting column 6 is provided with four groups, and the upper end thereof is connected to the bottom end of the condensation tank 5;

[0035] Through the above arrangement, the condensation tank 5 is stably fixed on the base 2, and the receiving plate 503 is not blocked by the connecting column 6 and can be withdrawn at any time;

[0036] Specifically, the boiling point of the distillation kettle 1 is reduced to about 35 to 45 degrees under the internal vacuum state, and a water inlet is reserved at the bottom; the distillation kettle 1 is connected to the upper part of the condensation tank 5 through the circulation pipe 4.

[0037] Working principle: the operator controls the vacuum pump 3, refrigerator 502 and distillation kettle 1 through the control panel 7. First, the operator starts the vacuum pump 3 to evacuate the interior of the distillation kettle 1 to a vacuum state, thereby reducing the boiling point inside the distillation kettle 1. Then the distillation kettle 1 heats the internal liquid until the liquid boils and evaporates. The gas evaporated from the inside of the distillation kettle 1 floats up and enters the condensation tank 5 through the circulation pipe 4. The operator controls the refrigerator 502 to cool through the control panel 7, and provides the copper tube 501 connected thereto for temperature transfer. The staggered multi-layer copper tube 501 structure quickly transfers low temperature. The gas entering from the distillation kettle 1 contacts the multi-layer copper tube 501. The decrease in temperature causes the gas to condense into water droplets, which accumulate on the outer surface of the copper tube 501 and converge in the accumulation of a large amount of condensed water. Finally, it drips into the receiving tray 503 under the action of gravity. The operator can pull out the receiving tray 503 at any time by holding the handle 504 and conduct spot checks on the water quality of the condensed water inside it.

[0038] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0039] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A vacuum low-temperature distillation device, comprising a distillation kettle (1), a base (2), and a vacuum pump (3), wherein the base (2) is arranged on the bottom end surface of the distillation kettle (1), the vacuum pump (3) is arranged on the upper end of the base (2), and the side end of the distillation kettle (1) is also connected to a flow pipe (4), characterized in that: A condensation tank (5) is provided on one side of the distillation kettle (1), and a connecting column (6) is provided at the bottom of the condensation tank (5); The condensing tank (5) also includes a copper tube (501), a refrigerator (502), a receiving plate (503), and a handle (504). The copper tube (501) is installed inside the condensing tank (5) and is connected to each other inside the condensing tank (5). The refrigerator (502) is fixedly installed outside the condensing tank (5), and its inner side passes through the side wall of the condensing tank (5) and is connected to one end of the copper tube (501) inside the condensing tank (5). The receiving plate (503) is plugged into the bottom end of the condensing tank (5), and the handle (504) is fixedly connected to the receiving plate (503) outside.

2. A vacuum low temperature distillation equipment according to claim 1, characterized in that: A control panel (7) is also provided on the outer end surface of the condensing tank (5), and there is a hidden line connection between the inner side of the control panel (7) and the refrigerator (502), the vacuum pump (3) and the distillation kettle (1).

3. A vacuum low temperature distillation equipment according to claim 1, characterized in that: The copper tubes (501) are arranged in four layers, each layer has five groups arranged in a staggered manner, and the arrangement is rotated 90 degrees from top to bottom between every two layers.

4. A vacuum low temperature distillation equipment according to claim 1, characterized in that: The rear end of the vacuum pump (3) is connected to the interior of the distillation kettle (1) via a pipeline.

5. The vacuum low temperature distillation equipment according to claim 1, characterized in that: The bottom end of the base (2) is provided with tooth structures arranged at equal intervals, and the upper end is fixedly connected to the distillation kettle (1) and the connecting column (6). The connecting column (6) is provided with four groups, and the upper end thereof is connected to the bottom end of the condensation tank (5).

6. The vacuum low temperature distillation equipment according to claim 1, characterized in that: The boiling point of the distillation kettle (1) is reduced to about 35 to 45 degrees under an internal vacuum state, and a water inlet is reserved at the bottom.

7. The vacuum low temperature distillation equipment according to claim 1, characterized in that: The distillation kettle (1) is connected to the upper part of the condensation tank (5) through a circulation pipe (4).

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