CN221713593U - Energy-saving low-pressure distillation equipment - Google Patents

Abstract

The utility model discloses an energy-saving low-pressure distillation device, including a distiller, and a condenser. The condenser includes a cylinder, a condenser tube group installed in the cylinder, and the condenser tube group includes four layers of spiral tubes arranged at intervals from the center of the cylinder to the surroundings. The inlet and outlet of the four layers of spiral tubes are arranged in a cross shape. The input end of the condenser tube group is connected to the distiller, and the output end is connected to a liquid discharge pipe. A liquid collecting tank is installed at the bottom of the cylinder, and the liquid discharge pipe is inserted into the liquid collecting tank. The inner wall of the cylinder is surrounded by fins, and the outer wall of the cylinder is respectively connected to a water inlet pipe and a water outlet pipe, and the water outlet pipe is connected to the distiller. The utility model realizes the recycling of the heat of the gasified material, further reduces the energy required by the condenser to cool the gasified material, and plays an effective energy-saving role. By arranging multiple layers of condensers, the condensation efficiency is improved.

Description

Energy-saving low-pressure distillation equipment

Technical Field

The utility model relates to a distillation device, in particular to an energy-saving low-pressure distillation device.

Background Art

Distillation is a thermodynamic separation process. It uses the different boiling points of the components in a mixed liquid or liquid-solid system to evaporate the low-boiling-point component and then condense it to separate the entire component. It is a unit operation process that combines the two unit operations of evaporation and condensation. Compared with other separation methods such as extraction, filtration and crystallization, its advantage is that it does not require the use of other solvents other than the system components, thereby ensuring that no new impurities are introduced.

When using existing distillation equipment, it is found that the steam generated during the distillation process will take away a large amount of heat. When cooling the vaporized gas, most of them use a condenser to cool it directly, which leads to a large amount of heat waste in the gas and also increases the burden on the condenser.

Utility Model Content

In order to solve the deficiencies existing in the above-mentioned technologies, the utility model provides an energy-saving low-pressure distillation device.

In order to solve the above technical problems, the technical solution adopted by the utility model is: an energy-saving low-pressure distillation device, including a distiller, which also includes a condenser, the condenser includes a cylinder, a condenser tube group installed in the cylinder, the condenser tube group includes four layers of spiral tubes arranged from the center of the cylinder to the surroundings, the inlet and outlet of the four layers of spiral tubes are arranged in a cross shape, the input end of the condenser tube group is connected to the distiller, and the output end is connected to a drain pipe, a liquid collecting tank is installed at the bottom of the cylinder, and the drain pipe is inserted into the liquid collecting tank;

The inner wall of the cylinder is surrounded by fins, and the outer wall of the cylinder is respectively connected with a water inlet pipe and a water outlet pipe, and the water outlet pipe is connected with the distiller.

Preferably, the four layers of spiral tubes are, from inside to outside, the first condenser tube, the second condenser tube, the third condenser tube, and the fourth condenser tube, and the four layers of spiral tubes are concentrically distributed.

Preferably, a refrigeration tube is embedded in each of the spiral tubes, a spiral condensation chamber is formed between the spiral tubes and the refrigeration tubes, and the input end and the output end of the refrigeration tube extend from the outer wall of the cylinder respectively.

Preferably, an air outlet pipe is connected to the distiller, an air inlet pipe is provided on the top of the cylinder, and the output end of the air outlet pipe is connected to the input end of the condenser tube group through the air inlet pipe.

Preferably, the distiller comprises an outer shell and an inner cavity formed inside the outer shell, a heating cavity is formed between the outer shell and the inner cavity, and a plurality of heating blocks are evenly installed in the heating cavity along the radial direction.

Preferably, the outer wall of the shell is connected to an insulated water tank, and the insulated water tank is connected to the water outlet pipe.

Preferably, a temperature sensor is installed on the outer shell, and the temperature sensor extends into the inner cavity.

The utility model arranges fins on the inner wall of the condenser to absorb the heat carried by the gas produced by vaporization and transfer it to the condenser, thereby heating the cold water in the condenser. The heated water is then transported to the outer wall of the distiller through the pump body, thereby realizing the recovery and utilization of the steam heat, further reducing the energy required by the condenser for steam cooling, and achieving effective energy saving. The condensation efficiency is improved by arranging multiple layers of condensing tubes.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the cross-sectional structure of the outer wall of the distiller.

FIG3 is a schematic diagram of the internal structure of the condenser.

FIG. 4 is a schematic diagram of the top view of the structure of the condenser tube group.

In the figure: 1. distiller; 200. condenser; 2. cylinder; 3. condenser tube group; 4. outlet pipe; 5. liquid collecting tank; 6. drain pipe; 7. fin; 8. inlet pipe; 11. outer shell; 12. inner cavity; 13. insulated water tank; 14. heating block; 21. water inlet pipe; 22. water outlet pipe; 31. first condenser tube; 32. second condenser tube; 33. third condenser tube; 34. fourth condenser tube.

DETAILED DESCRIPTION

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. 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.

The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

As shown in FIG. 1 , an energy-saving low-pressure distillation device comprises a distiller 1, which also comprises a condenser 200. The condenser 200 comprises a cylinder 2, and a condenser tube group 3 installed in the cylinder 2. The condenser tube group 3 comprises four layers of spiral tubes arranged at intervals from the center of the cylinder to the surroundings. The inlet and outlet of the four layers of spiral tubes are arranged in a cross shape. The input end of the condenser tube group 3 is connected to the distiller 1, and the output end is connected to a drain pipe 6. A liquid collecting tank 5 is installed at the bottom of the cylinder 2, and the drain pipe 6 is inserted into the liquid collecting tank 5.

When in use, the mixed liquid or liquid-solid material is heated through the distiller, and the steam generated after heating enters the condenser tube group through the outlet pipe, and the external refrigerant is injected into the refrigeration tube, and the refrigeration tube cools and condenses the gas flowing through the spiral tube, and then cold water is injected into the condenser, and the heat absorbed by the fins heats the cold water, which cools the inside of the cylinder, and the heated water is transported to the insulation water tank to keep the distiller warm. The gas in the spiral tube is condensed after being cooled, and the condensate enters the liquid collecting tank for collection. Under the condensation effect of the four-layer spiral tube, the steam is cooled, the condensation effect of the distilled gas is improved, and the condensation recovery rate is improved.

As shown in Fig. 3, fins 7 are arranged around the inner wall of the cylinder 2, and a water inlet pipe 21 and a water outlet pipe 22 are respectively connected to the outer wall of the cylinder 2, and the water outlet pipe 22 is connected to the distiller 1. The heat carried by the steam is absorbed by the fins and transferred to the inside of the condenser, and the cold water in the condenser is heated by the transferred heat, thereby realizing the recovery and utilization of the steam heat, and on the other hand, reducing the energy required by the condenser for cooling the steam, which greatly saves energy.

As shown in Fig. 4, the four layers of spiral tubes are arranged concentrically, i.e., the first condensation tube 31, the second condensation tube 32, the third condensation tube 33, and the fourth condensation tube 34. The four layers of spiral tubes are arranged concentrically, so as to improve the condensation efficiency of steam and facilitate the uniform dispersion of energy.

In one embodiment, a refrigeration tube is embedded in each of the spiral tubes, a spiral condensation chamber is formed between the spiral tubes, and the input end and the output end of the refrigeration tube extend from the outer wall of the cylinder respectively. The effect of liquefying the steam flowing through the spiral tube is achieved by adding refrigerant into the refrigeration tube.

In one embodiment, the distiller 1 is connected to an air outlet pipe 4, and the top of the cylinder 2 is provided with an air inlet pipe 8, and the output end of the air outlet pipe 4 is connected to the input end of the condenser group through the air inlet pipe 8. The steam generated by the heating of the distiller is discharged through the air outlet pipe and further transported to the condenser group for condensation.

In one embodiment, as shown in FIG2 , the distiller 1 includes an outer shell 11 and an inner cavity 12 formed therein, a heating cavity is formed between the outer shell 11 and the inner cavity 12, and a plurality of heating blocks 14 are evenly installed in the heating cavity along the radial direction. The heating blocks heat the interior of the heating cavity, thereby heating the material in the inner cavity, and the material is vaporized after being heated, and the desired components are extracted by distillation.

In one embodiment, the outer wall of the housing 11 is connected to an insulated water tank 13, which is in communication with the water outlet pipe 22. The insulated water tank is provided to insulate the distiller to prevent internal heat loss. The steam generated by the distiller enters the condenser and absorbs the heat through the fins and transfers it to the cold water in the condenser, thereby heating the water, recycling the heat generated by the steam, avoiding heat loss, and achieving energy saving.

In one embodiment, a temperature sensor is installed on the housing 11, and the temperature sensor extends into the inner cavity 12. By providing the temperature sensor, it is convenient to check the temperature of the inner cavity, thereby improving practicality.

Preferably, a motor is fixedly connected to the top of the distiller, the output shaft of the motor passes through the distiller and is fixedly connected to a stirring shaft, stirring rods are evenly distributed on the outer wall of the stirring shaft, L-shaped rods are fixedly connected to the top two sides of the stirring shaft, and a scraper is fixedly connected to the outer side of the L-shaped rod. The stirring rods are driven by the stirring shaft to stir the materials inside the distiller so that they are heated evenly, which improves the efficiency of material heating and saves the heat required for distillation.

The utility model aims to provide an energy-saving low-pressure distillation device to improve the condensation efficiency of materials and the recovery rate of energy, while fully utilizing the heat, reducing the energy consumption used in distillation, and achieving energy-saving effect.

The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims (7)

1. Energy-saving low-pressure distillation equipment, comprising a distiller (1), characterized in that: the condenser also comprises a condenser (200), wherein the condenser (200) comprises a cylinder body (2) and a condensing tube group (3) arranged in the cylinder body (2), the condensing tube group (3) comprises four layers of spiral tubes which are arranged from the center of the cylinder body to the periphery at intervals, the inlets and the outlets of the four layers of spiral tubes are all arranged in a cross shape, the input end of the condensing tube group (3) is communicated with the distiller (1), the output end of the condensing tube group is connected with a liquid discharge tube (6), the bottom of the cylinder body (2) is provided with a liquid collecting tank (5), and the liquid discharge tube (6) is inserted into the liquid collecting tank (5);

The inner wall of the barrel (2) is provided with fins (7) in a surrounding mode, the outer wall of the barrel (2) is respectively connected with a water inlet pipe (21) and a water outlet pipe (22), and the water outlet pipe (22) is communicated with the distiller (1).

2. The energy efficient low pressure distillation apparatus according to claim 1, wherein: the four layers of spiral pipes are sequentially a first condensing pipe (31), a second condensing pipe (32), a third condensing pipe (33) and a fourth condensing pipe (34) from inside to outside, and the four layers of spiral pipes are concentrically distributed.

3. The energy efficient low pressure distillation apparatus according to claim 2, wherein: the spiral tube is internally embedded with a refrigerating tube, a spiral condensing cavity is formed between the spiral tube and the refrigerating tube, and the input end and the output end of the refrigerating tube extend out of the outer wall of the cylinder respectively.

4. An energy-saving low pressure distillation apparatus according to claim 3 wherein: the distiller is characterized in that an air outlet pipe (4) is connected to the distiller (1), an air inlet pipe (8) is arranged at the top of the cylinder body (2), and the output end of the air outlet pipe (4) is communicated with the input end of the condensing tube group through the air inlet pipe (8).

5. The energy-saving low pressure distillation apparatus according to claim 4 wherein: the distiller (1) comprises a shell (11) and an inner cavity (12) formed in the distiller, a heating cavity is formed between the shell (11) and the inner cavity (12), and a plurality of heating blocks (14) are uniformly arranged in the heating cavity along the radial direction.

6. The energy-saving low pressure distillation apparatus according to claim 5 wherein: the outer wall of the shell (11) is connected with a heat preservation water tank (13), and the heat preservation water tank (13) is communicated with a water outlet pipe (22).

7. The energy-saving low pressure distillation apparatus according to claim 6 wherein: the shell (11) is provided with a temperature sensor, and the temperature sensor extends into the inner cavity (12).