High-boiling-point liquid distillation device

Abstract

The utility model discloses a high-boiling-point liquid distillation device and relates to the field of fine chemical engineering. The high-boiling-point liquid distillation device comprises a distillation retort and a cooling cylinder, a liquid injection pipe and an exhaust pipe are fixedly communicated with the distillation retort, the high-boiling-point liquid distillation device further comprises a pre-cooling tank fixedly connected to the distillation retort, a condensation pipe is arranged in the pre-cooling tank, the condensation pipe is arranged in a spiral shape, and the input end of the condensation pipe is fixedly communicated with the output end of the exhaust pipe; the receiving tank is fixedly mounted in the cooling cylinder, and the output end of the condensation pipe is communicated with the receiving tank through a connecting pipe; according to the steam pre-cooling device, steam can be pre-cooled when passing through the condensation pipe, the condensation pipe is spirally arranged, so that the time of the steam in the condensation pipe is prolonged, the pre-cooling effect on the steam is improved, and then the primarily cooled steam is cooled through the cooling cylinder when entering the receiving tank, so that the cooling effect is improved. Therefore, the efficiency of steam cooling and liquefying is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fine chemical industry, and in particular relates to a high boiling point liquid distillation device. Background Art

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of 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.

[0003] For example, the utility model patent with patent application number 202120491336.8 and name of distillation device for high-boiling-point liquids discloses a distillation device for high-boiling-point liquids, which belongs to the field of distillation technology in fine chemicals. The distillation device for high-boiling-point liquids includes a distillation tank and a cooling box, the side wall of the distillation tank is connected to a water inlet pipe, the water inlet pipe is connected to a hollow cylinder, a control block is slidably connected in the hollow cylinder, a spring is connected between the control block and the inner wall of the bottom of the hollow cylinder, a connecting rope is connected to the bottom of the control block, a buoyancy ball is arranged at the bottom of the connecting rope, a heating plate is arranged at the bottom of the distillation tank, a receiving box is arranged in the cooling box, a distillation tube is connected between the receiving box and the distillation tank, a pressure relief pipe is arranged on the receiving box, and a pressure relief valve is arranged in the pressure relief pipe; the utility model has a simple structure and stable operation, and the automatic water adding function is realized through the mutual cooperation of the control block and the buoyancy ball, the safety is improved, and the steam after distillation is quickly cooled and liquefied by the cooling box, and the efficiency is greatly improved.

[0004] The above patent also has the following defects. Due to the lack of the function of pre-cooling the steam, after the steam is filled into the receiving box, it is only cooled by the cooling water in the cooling box to absorb heat, thereby reducing the efficiency of steam cooling and liquefaction. In view of this, the present utility model is specially proposed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high boiling point liquid distillation device which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0007] A high-boiling-point liquid distillation device comprises a distillation tank and a cooling cylinder, wherein the distillation tank is fixedly connected with a liquid injection pipe and an exhaust pipe, and further comprises: a precooling tank fixedly connected to the distillation tank, wherein a condenser is arranged in the precooling tank, the condenser is arranged in a spiral shape, and the input end of the condenser is fixedly connected with the output end of the exhaust pipe; a receiving tank fixedly installed in the cooling cylinder, wherein the output end of the condenser is connected with the receiving tank through a connecting pipe, the precooling tank is fixedly connected with the cooling cylinder through a low-temperature water output pipe, and a reflux pipe is arranged on the cooling cylinder; an atomizing nozzle fixedly installed on the top inner wall of the precooling tank, wherein the precooling tank is provided with a low-temperature water input pipe connected with the atomizing nozzle.

[0008] In order to maintain a constant pressure inside the receiving tank, preferably, a pressure relief pipe is fixedly connected to the receiving tank, and a pressure relief valve is provided on the pressure relief pipe.

[0009] Preferably, a discharge pipe is fixedly connected to the receiving tank, and a valve switch is provided at one end of the discharge pipe that passes through the cooling cylinder.

[0010] In order to stir the low-temperature water flowing into the cooling cylinder and thereby heat the low-temperature water evenly, preferably, a plurality of rotating shafts are equidistantly connected to the inner circumference of the cooling cylinder, and a paddle is fixedly connected to the rotating shaft.

[0011] In order to drive multiple rotating shafts to rotate synchronously, further, the rotating shaft passes through one end of the cooling cylinder and is fixedly installed with gear one, the cooling cylinder is fixedly installed with a motor, the output end of the motor is fixedly connected with gear two, and the gear two is meshingly connected with gear one.

[0012] In order to cool down the low-temperature water flowing into the cooling cylinder after pre-cooling, preferably, the top of the cooling cylinder is opened.

[0013] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0014] The utility model can pre-cool the steam when it passes through the condenser. Since the condenser is arranged in a spiral shape, the time the steam stays in the condenser is increased, thereby improving the effect of pre-cooling the steam. Then, when the steam after the initial cooling enters the receiving tank, it is further cooled by the cooling cylinder, thereby improving the efficiency of steam cooling and liquefaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional view of a partial structural schematic diagram of the utility model;

[0018] Figure 4 It is a cross-sectional view of the cooling cylinder, receiving tank and discharge pipe of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the rotating shaft and the dial plate of the utility model;

[0020] Figure 6 It is a structural schematic diagram of a precooling tank and a condensing tube of the utility model.

[0021] In the figure: 1. distillation tank; 101. injection pipe; 102. exhaust pipe; 2. pre-cooling tank; 201. condenser; 202. atomizing nozzle; 203. low-temperature water input pipe; 204. connecting pipe; 205. low-temperature water output pipe; 3. cooling cylinder; 301. receiving tank; 302. pressure relief pipe; 303. discharge pipe; 304. reflux pipe; 4. rotating shaft; 401. dial plate; 402. gear one; 403. motor; 404. gear two. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0023] Embodiment 1:

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 The high-boiling-point liquid distillation device comprises a distillation tank 1 and a cooling cylinder 3, wherein the distillation tank 1 is fixedly connected with a liquid injection pipe 101 and an exhaust pipe 102, and further comprises: a precooling tank 2 fixedly connected to the distillation tank 1, wherein a condenser 201 is arranged in the precooling tank 2, the condenser 201 is arranged in a spiral shape, and the input end of the condenser 201 is fixedly connected with the output end of the exhaust pipe 102; a receiving tank 301, which is fixedly installed in the cooling cylinder 3, wherein the output end of the condenser 201 is connected with the receiving tank 301 through a connecting pipe 204, the precooling tank 2 is fixedly connected with the cooling cylinder 3 through a low-temperature water output pipe 205, and the cooling cylinder 3 is provided with a reflux pipe 304; an atomizing nozzle 202, which is fixedly installed on the top inner wall of the precooling tank 2, wherein a low-temperature water input pipe 203 connected with the atomizing nozzle 202 is arranged on the precooling tank 2.

[0025] When in use, an external water pump is connected so that the output end of the water pump is connected to the cooling water tank and the input end is connected to the low-temperature water input pipe 203. Then the water pump is started so that the water pump draws the low-temperature water in the cooling water tank and transports it into the atomizing nozzle 202 through the low-temperature water input pipe 203 for spraying, and then sprays the low-temperature water on the surface of the condenser 201. Then the low-temperature water sprayed into the pre-cooling tank 2 flows into the cooling cylinder 3 through the low-temperature water output pipe 205. When the low-temperature water level in the cooling cylinder 3 is higher than the return pipe 304, the low-temperature water can flow back into the cooling water tank through the return pipe 304. At this time, the liquid is passed through The liquid is injected into the distillation tank 1 through the injection pipe 101, thereby heating and distilling it. The vaporized steam after distillation passes through the exhaust pipe 102, the condenser 201, and the connecting pipe 204 in sequence and enters the receiving tank 301, so that the steam can be pre-cooled when passing through the condenser 201. Since the condenser 201 is arranged in a spiral shape, the time the steam stays in the condenser 201 is increased, thereby improving the effect of pre-cooling the steam. Then, the steam after the initial cooling is cooled by the cooling cylinder 3 when entering the receiving tank 301, thereby improving the efficiency of steam cooling and liquefaction.

[0026] Embodiment 2:

[0027] Reference Figure 3 , Figure 4 and Figure 5 The high boiling point liquid distillation device is basically the same as that of Example 1. Furthermore, a plurality of rotating shafts 4 are equidistantly connected to the inner circumference of the cooling cylinder 3, and a dial plate 401 is fixedly connected to the rotating shaft 4.

[0028] A gear 1 402 is fixedly mounted on one end of the rotating shaft 4 that passes through the cooling cylinder 3 , a motor 403 is fixedly mounted on the cooling cylinder 3 , a gear 2 404 is fixedly connected to the output end of the motor 403 , and the gear 2 404 is meshedly connected to the gear 1 402 .

[0029] The top of the cooling cylinder 3 is open.

[0030] When cooling the steam, the motor 403 is started, so that the motor 403 drives the multiple rotating shafts 4 to rotate synchronously through the meshing connection of the gear 2 404 and the gear 1 402. At the same time, the rotating shaft 4 drives the paddle 401 to rotate, thereby stirring the low-temperature water flowing into the cooling cylinder 3, so that the low-temperature water is heated evenly, and the efficiency of cooling and liquefying the steam in the receiving tank 301 is further improved. At the same time, since the top of the cooling cylinder 3 is open, the paddle 401 can increase the contact between the low-temperature water and the outside air when stirring the low-temperature water, thereby achieving the purpose of cooling the low-temperature water.

[0031] Embodiment 3:

[0032] Reference Figure 3 , Figure 4, a high boiling point liquid distillation device is basically the same as Example 1, and further, a pressure relief pipe 302 is fixedly connected to the receiving tank 301, and a pressure relief valve is arranged on the pressure relief pipe 302; when the gas pressure inside the receiving tank 301 is greater than the pressure relief value set by the pressure relief valve on the pressure relief pipe 302, the pressure relief valve automatically opens, and at this time, the high-pressure gas inside the receiving tank 301 can be discharged from the receiving tank 301 through the pressure relief pipe 302, thereby maintaining the pressure inside the receiving tank 301 constant, preventing the pressure inside the receiving tank 301 from being too high, causing safety hazards.

[0033] A discharge pipe 303 is fixedly connected to the receiving tank 301, and a valve switch is provided at one end of the discharge pipe 303 which passes through the cooling cylinder 3; when the liquefied liquid in the receiving tank 301 needs to be taken out, the valve switch on the discharge pipe 303 can be opened so that the liquid can be discharged from the receiving tank 301 through the discharge pipe 303.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention.

Claims

1. A high boiling point liquid distillation device, comprising a distillation tank (1) and a cooling cylinder (3), wherein the distillation tank (1) is fixedly connected with a liquid injection pipe (101) and an exhaust pipe (102), characterized in that: Also includes: a precooling tank (2) fixedly connected to the distillation tank (1), Wherein, a condenser (201) is arranged in the precooling tank (2), the condenser (201) is arranged in a spiral shape, and the input end of the condenser (201) is fixedly connected to the output end of the exhaust pipe (102); The receiving tank (301) is fixedly installed in the cooling cylinder (3). The output end of the condenser (201) is connected to the receiving tank (301) via a connecting pipe (204), the precooling tank (2) is fixedly connected to the cooling cylinder (3) via a low-temperature water output pipe (205), and a reflux pipe (304) is provided on the cooling cylinder (3); The atomizing nozzle (202) is fixedly mounted on the top inner wall of the precooling tank (2). Wherein, the precooling tank (2) is provided with a low-temperature water input pipe (203) connected to the atomizing nozzle (202).

2. The high boiling point liquid distillation device according to claim 1, characterized in that: The receiving tank (301) is fixedly connected to a pressure relief pipe (302), and a pressure relief valve is provided on the pressure relief pipe (302).

3. The high boiling point liquid distillation device according to claim 1, characterized in that: The receiving tank (301) is fixedly connected with a discharge pipe (303), and one end of the discharge pipe (303) that passes through the cooling cylinder (3) is provided with a valve switch.

4. The high boiling point liquid distillation device according to claim 1, characterized in that: The inner circumference of the cooling cylinder (3) is equidistantly rotatably connected to a plurality of rotating shafts (4), and a shifting plate (401) is fixedly connected to the rotating shaft (4).

5. The high boiling point liquid distillation device according to claim 4, characterized in that: The rotating shaft (4) passes through one end of the cooling cylinder (3) and is fixedly mounted with a gear one (402); a motor (403) is fixedly mounted on the cooling cylinder (3); a gear two (404) is fixedly connected to the output end of the motor (403); and the gear two (404) is meshingly connected with the gear one (402).

6. The high boiling point liquid distillation device according to claim 1, characterized in that: The top of the cooling cylinder (3) is open.

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