Multi-stage chemical distillation tower

Abstract

The utility model discloses a multistage chemical distillation tower which comprises a main body module and a cleaning module, the main body module comprises a tower body, a liquid inlet pipe mounted on one side of the tower body and extending into an inner cavity of the tower body, an exhaust pipe mounted at the top end of the tower body and communicated with the inner cavity of the tower body, a plurality of heating plates fixed on the inner wall of the tower body, a main steam pipe arranged on one side of the tower body, a main air outlet pipe arranged on one side of the tower body and a pump machine mounted on one side of the tower body; the tower body is used for forming a sealed space to facilitate distillation operation, the liquid inlet pipe is used for feeding liquid needing to be distilled into an inner cavity of the tower body, the exhaust pipe is used for discharging heated gas to facilitate subsequent condensation operation, and the multistage chemical distillation tower has the advantages of being high in distillation efficiency and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation towers, in particular to a multi-stage chemical distillation tower. Background Art

[0002] The distillation tower is a chemical equipment made of rare metal titanium and other materials and their alloys. It has the characteristics of high strength, high toughness, high temperature resistance, corrosion resistance, and light specific gravity. Therefore, it is widely used in chemical, petrochemical, metallurgy, light industry, textile, alkali, pharmaceutical, pesticide, electroplating, electronics and other fields.

[0003] The existing chemical distillation tower has the following main drawbacks during use: the distillation efficiency is low, and the heater surface is prone to scaling, resulting in poor heating effect and causing additional losses. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0005] To this end, the technical solution adopted by the utility model is: a multi-stage chemical distillation tower, including: a main module and a cleaning module, the main module including a tower body, a liquid inlet pipe installed on one side of the tower body and extending into the inner cavity of the tower body, an exhaust pipe installed on the top of the tower body and connected to the inner cavity of the tower body, a plurality of heating plates fixed on the inner wall of the tower body, a main steam pipe arranged on one side of the tower body, a main air outlet pipe arranged on one side of the tower body and a pump installed on one side of the tower body.

[0006] A tube body is provided through the middle of the heating plate, through holes are provided on both sides of the heating plate located at the tube body, and a serpentine flow channel is provided in the inner cavity of the heating plate.

[0007] The cleaning module includes a motor installed at the bottom end of the tower body with its shaft extending into the tower body cavity, a bracket fixed on the inner wall of the tower body, a rotating shaft with one end rotatably installed on the bracket and the other end fixedly connected to the motor shaft, and multiple scrapers symmetrically fixed on the rotating shaft.

[0008] In a preferred example, the utility model can be further configured as follows: one end of the serpentine flow channel is connected to the main steam pipe through an air inlet branch pipe, and the other end of the serpentine flow channel is connected to the main air outlet pipe through an air outlet branch pipe.

[0009] In a preferred example, the present invention can be further configured as follows: the inner diameter of the tube body is twice the inner diameter of the through hole.

[0010] In a preferred example, the utility model can be further configured as follows: the pump inlet is connected to the bottom of the inner cavity of the tower body through a connecting pipe, and the outlet is connected to the liquid inlet pipe through a delivery pipe.

[0011] In a preferred example, the utility model can be further configured as follows: the bracket includes support rods fixed on the inner wall of the tower body in an annular array and bearings fixed on the ends of the support rods.

[0012] In a preferred example, the utility model can be further configured as follows: the scraper is L-shaped, one end of which is fixed on the rotating shaft, and the other end is close to the surface of the heating plate.

[0013] In a preferred example, the utility model can be further configured as follows: the heating plate is made of heat-conducting material.

[0014] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0015] 1. In the utility model, a plurality of heating plates are fixed on the inner wall of the tower body, and a tube body penetrating the heating tube is arranged in the middle of the heating plate, through holes are arranged on both sides of the heating plate, and a serpentine flow channel is arranged in the heating plate at the same time, one end of the serpentine flow channel is connected with the main steam pipe, and the other end is connected with the main air outlet pipe. When in use, the liquid is sent into the tower body through the liquid inlet pipe and falls on the uppermost heating plate. At this time, the high-temperature steam enters the serpentine flow channel through the main steam pipe to heat the heating plate. After the heating plate is heated, the liquid is heated to evaporate. At the same time, a part of the liquid falls onto the heating plate of the next layer through the through hole, and the above process is repeated again to form a multi-stage heating distillation of the liquid, which can effectively improve the distillation efficiency and increase the practical performance.

[0016] 2. In the utility model, a pump is installed on one side of the tower body, one end of the pump is connected to the bottom of the inner cavity of the tower body, and the other end is connected to the liquid inlet pipe, so that the pump can pump the liquid falling into the bottom of the tower body back into the liquid inlet pipe, so that it re-enters the tower body for repeated distillation, further improving the distillation effect.

[0017] 3. In the utility model, a motor extending into the tower body is installed at the bottom of the tower body, and a bracket is installed on the inner wall of the tower body, a rotating shaft is fixed between the bracket and the motor shaft, the rotating shaft passes through the tube body, and a scraper is symmetrically fixed on the rotating shaft. The rotating shaft is driven to rotate by the motor, and the rotation of the rotating shaft drives the scraper to rotate, so as to scrape off the dirt attached to the surface of the heating plate, thereby preventing the dirt from affecting the heating effect of the heating plate, ensuring the high efficiency of heat transfer, and further improving the practical performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a structural schematic diagram of another viewing angle of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0021] Figure 4 The schematic diagram of the internal structure of the tower body of the utility model is as follows

[0022] Figure 5 It is a heating plate structure and a cross-sectional schematic diagram of the utility model.

[0023] Reference numerals:

[0024] 100, main module; 110, tower body; 120, liquid inlet pipe; 130, exhaust pipe; 140, heating plate; 141, pipe body; 142, through hole; 143, serpentine flow channel; 1431, air inlet branch pipe; 1432, air outlet branch pipe; 150, main steam pipe; 160, main air outlet pipe; 170, pump; 171, connecting pipe; 172, delivery pipe;

[0025] 200, cleaning module; 210, motor; 220, bracket; 221, support rod; 222, bearing; 230, rotating shaft; 240, scraper. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0027] Some embodiments of the present invention are described below in conjunction with the accompanying drawings.

[0028] Embodiment 1:

[0029] Combination Figure 1-5 As shown, this embodiment provides a multi-stage chemical distillation tower, including: a main module 100 and a cleaning module 200.

[0030] Among them, the main module 100 includes a tower body 110, a liquid inlet pipe 120 installed on one side of the tower body 110 and extending into the inner cavity of the tower body 110, an exhaust pipe 130 installed at the top of the tower body 110 and connected to the inner cavity of the tower body 110, a plurality of heating plates 140 fixed on the inner wall of the tower body 110, a main steam pipe 150 arranged on one side of the tower body 110, a main air outlet pipe 160 arranged on one side of the tower body 110, and a pump 170 installed on one side of the tower body 110.

[0031] The tower body 110 is used to form a sealed space to facilitate distillation operations. The liquid inlet pipe 120 is used to deliver the liquid to be distilled into the inner cavity of the tower body 110. The exhaust pipe 130 is used to deliver the heated gas to facilitate subsequent condensation operations.

[0032] The heating plate 140 is made of heat-conducting material and is used to heat the liquid to make it gaseous. A tube body 141 is provided through the middle of the heating plate 140 to facilitate the passage of the gasified liquid of the next layer. Through holes 142 are provided on both sides of the heating plate 140 located at the tube body 141 to facilitate the passage of the liquid to the next layer of the heating plate 140. In addition, the inner diameter of the tube body 141 is twice the inner diameter of the through hole 142. At the same time, a serpentine flow channel 143 is provided in the inner cavity of the heating plate 140. One end of the serpentine flow channel 143 passes through the intake branch pipe 143. 1 is connected with the main steam pipe 150, so that the high-temperature steam in the main steam pipe 150 can enter the serpentine flow channel 143 through the air inlet branch pipe 1431. The other end of the serpentine flow channel 143 is connected with the main air outlet pipe 160 through the air outlet branch pipe 1432, so that the heated high-temperature steam can be sent to the main air outlet pipe 160 through the air outlet branch pipe 1432. When the high-temperature steam flows in the serpentine flow channel 143, the heating plate 140 can be heated. After the heating plate 140 is heated, the liquid can be heated to make it gasified and distilled.

[0033] The main steam pipe 150 is used to transport high-temperature steam, and the main gas outlet pipe 160 is used to send out the heated steam.

[0034] The inlet of the pump 170 is connected to the bottom of the inner cavity of the tower body 110 through the connecting pipe 171, and the outlet is connected to the liquid inlet pipe 120 through the conveying pipe 172. The liquid that falls into the bottom of the tower body 110 can be pumped back into the liquid inlet pipe 120, so that it re-enters the tower body 110 for repeated distillation, further improving the distillation effect.

[0035] The cleaning module 200 is used to clean the dirt on the surface of the heating plate 140, and includes a motor 210 installed at the bottom end of the tower body 110 and with its shaft extending into the inner cavity of the tower body 110, a bracket 220 fixed on the inner wall of the tower body 110, a rotating shaft 230 with one end rotatably installed on the bracket 220 and the other end fixedly connected to the shaft of the motor 210, and a plurality of scrapers 240 symmetrically fixed on the rotating shaft 230.

[0036] The bracket 220 includes support rods 221 fixed in a circular array on the inner wall of the tower body 110 and bearings 222 fixed at the ends of the support rods 221. The support rods 221 are used to fix the bearings 222. One end of the rotating shaft 230 is fixed on the inner ring of the bearing 222, and the other end passes through the tube body 141 and is fixedly connected to the shaft of the motor 210, so that the motor 210 can drive the rotating shaft 230 to rotate. The scraper 240 is L-shaped, one end of which is fixed on the rotating shaft 230, and the other side is close to the surface of the heating plate 140, so that when the rotating shaft 230 rotates, the scraper 240 is driven to rotate. The scraper 240 rotates to scrape off the dirt attached to the surface of the heating plate 140 to prevent the dirt from affecting the heating effect of the heating plate 140.

[0037] The working principle and use process of the utility model are as follows: when in use, the liquid is fed into the inner cavity of the tower body 110 through the liquid inlet pipe 120 and falls on the uppermost heating plate 140. At this time, the high-temperature steam in the main steam pipe 150 enters the flow channel through the air inlet branch pipe 1431 and flows in the flow channel to heat the heating plate 140. The heated heating plate 140 heats the liquid on its surface. After the liquid is heated, it vaporizes and distills. At the same time, a part of the liquid falls on the heating plate 140 of the next layer through the through hole 142. The above process is repeated again to form a multi-stage synchronous heating distillation of the liquid. The vaporized liquid is discharged through the exhaust pipe 130 to facilitate subsequent condensation. In addition, the pump 170 is started to pump the liquid that has fallen into the bottom of the tower body 110 back into the liquid inlet pipe 120, so that it re-enters the tower body 110 for repeated distillation, thereby further improving the distillation effect. At the same time, the motor 210 drives the shaft 230 to rotate, and the rotation of the shaft 230 drives the scraper 240 to rotate, thereby scraping off the dirt attached to the surface of the heating plate 140.

[0038] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A multi-stage chemical distillation tower, comprising: A main body module (100) and a cleaning module (200), characterized in that the main body module (100) comprises a tower body (110), a liquid inlet pipe (120) installed on one side of the tower body (110) and extending into the inner cavity of the tower body (110), an exhaust pipe (130) installed on the top of the tower body (110) and communicating with the inner cavity of the tower body (110), a plurality of heating plates (140) fixed on the inner wall of the tower body (110), a main steam pipe (150) arranged on one side of the tower body (110), a main air outlet pipe (160) arranged on one side of the tower body (110), and a pump (170) installed on one side of the tower body (110); A tube body (141) is provided through the middle of the heating plate (140), through holes (142) are provided on both sides of the heating plate (140) located on the tube body (141), and a serpentine flow channel (143) is provided in the inner cavity of the heating plate (140); The cleaning module (200) comprises a motor (210) mounted at the bottom end of a tower body (110) and having a shaft extending into an inner cavity of the tower body (110), a bracket (220) fixed to an inner wall of the tower body (110), a rotating shaft (230) having one end rotatably mounted on the bracket (220) and the other end fixedly connected to the shaft of the motor (210), and a plurality of scrapers (240) symmetrically fixed to the rotating shaft (230).

2. A multi-stage chemical distillation tower according to claim 1, characterized in that: One end of the serpentine flow channel (143) is connected to the main steam pipe (150) through an air inlet branch pipe (1431), and the other end of the serpentine flow channel (143) is connected to the main air outlet pipe (160) through an air outlet branch pipe (1432).

3. A multi-stage chemical distillation tower according to claim 1, characterized in that: The inner diameter of the tube body (141) is twice the inner diameter of the through hole (142).

4. A multi-stage chemical distillation tower according to claim 1, characterized in that: The inlet of the pump (170) is connected to the bottom of the inner cavity of the tower body (110) through a connecting pipe (171), and the outlet is connected to the liquid inlet pipe (120) through a delivery pipe (172).

5. A multi-stage chemical distillation tower according to claim 1, characterized in that: The support (220) comprises support rods (221) fixed on the inner wall of the tower body (110) in an annular array, and bearings (222) fixed on the ends of the support rods (221).

6. A multi-stage chemical distillation tower according to claim 1, characterized in that: The scraper (240) is L-shaped, with one end fixed on the rotating shaft (230) and the other end in close contact with the surface of the heating plate (140).

7. A multi-stage chemical distillation tower according to claim 1, characterized in that: The heating plate (140) is made of heat-conducting material.

Images