Condenser for dichlorobenzene separation

Abstract

The utility model discloses a condenser for dichlorobenzene separation. The condenser comprises a condensing shell and a cleaning mechanism, partition plates are arranged at the upper end and the lower end in the condensation shell respectively, condensation pipes which are evenly distributed are arranged between the partition plates in a penetrating mode, a steam pipe and a liquid outlet pipe are arranged on the side wall of the condensation shell in a penetrating mode respectively, a gathering tank is arranged at the right end of the liquid outlet pipe through a connecting pipe, a leading-out pipe is arranged on the bottom wall of the gathering tank in a penetrating mode, and a cold water pipe is arranged on the top wall of the condensation shell in a penetrating mode. A water outlet pipe penetrates through the bottom wall of the condensation shell; the cleaning mechanism is arranged in the condensation shell, the cleaning mechanism and the condensation pipe are installed in a matched mode, according to the condenser for dichlorobenzene separation, the pressure in the device is balanced by adjusting the pressure of liquefied and separated dichlorobenzene, and therefore the liquefied and separated dichlorobenzene can conveniently flow out by overcoming the negative pressure; and meanwhile, the device can automatically clean impurities adhered to the surface of a condensation part, so that the condensation, liquefaction and separation efficiency of dichlorobenzene is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of dichlorobenzene separation, in particular to a condenser for dichlorobenzene separation. Background Technique

[0002] The condenser is an essential device in the distillation process. When separating dichlorobenzene through vacuum distillation and using the condenser, for some condensers for dichlorobenzene separation, the dichlorobenzene vapor is transported into the condenser, and the cooling medium in the condenser tube uses heat transfer to liquefy the dichlorobenzene vapor. The liquefied dichlorobenzene is recovered by the way of gravity direct flow. However, affected by the air pressure, it is impossible to ensure that the dichlorobenzene liquid can overcome the negative pressure and flow out. At the same time, after the device is used for a long time, a large amount of impurities will be adsorbed on the outer side of the condenser tube. Hindered by the impurities, it is not conducive to the heat transfer during the liquefaction of dichlorobenzene vapor and needs to be improved. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a condenser for dichlorobenzene separation. The device adjusts the pressure of the liquefied and separated dichlorobenzene, so as to balance the internal pressure of the device, so as to facilitate the liquefied and separated dichlorobenzene to overcome the negative pressure and flow out. At the same time, the device can automatically clean the impurities adhered to the surface of the condensation part, avoiding affecting the condensation, liquefaction and separation efficiency of dichlorobenzene, and can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the utility model provides the following technical scheme: a condenser for dichlorobenzene separation, including a condensation shell and a cleaning mechanism;

[0005] Condensation shell: partition plates are respectively arranged at the upper and lower ends of its interior, condensation tubes are uniformly arranged through between the partition plates, a steam pipe and a liquid outlet pipe penetrate through the side wall of the condensation shell respectively, the right end of the liquid outlet pipe is provided with an aggregation tank through a connecting pipe, a lead-out pipe penetrates through the bottom wall of the aggregation tank, a cold water pipe penetrates through the top wall of the condensation shell, and a water outlet pipe penetrates through the bottom wall of the condensation shell;

[0006] Cleaning mechanism: it is arranged inside the condensation shell, and the cleaning mechanism is cooperatively installed with the condensation tube. The device adjusts the pressure of the liquefied and separated dichlorobenzene, so as to balance the internal pressure of the device, so as to facilitate the liquefied and separated dichlorobenzene to overcome the negative pressure and flow out. At the same time, the device can automatically clean the impurities adhered to the surface of the condensation part, avoiding affecting the condensation, liquefaction and separation efficiency of dichlorobenzene.

[0007] Furthermore, it further includes a single-chip microcomputer. The single-chip microcomputer is located outside the condensation shell, and the input end of the single-chip microcomputer is electrically connected to an external power supply, which is convenient for controlling electrical components.

[0008] Further, the cleaning mechanism includes a vertical moving seat and a scraping seat. The vertical moving seat is slidably connected to the inside of the condensation shell. The inside of the vertical moving seat is provided with evenly distributed scraping seats, and the scraping seats are all cooperatively installed with the adjacent condensation pipes to clean the impurities on the outer surface of the condensation pipes during the condensation separation process of para-dichlorobenzene.

[0009] Further, the cleaning mechanism further includes a reciprocating lead screw, a driving shaft and a motor. The reciprocating lead screw is rotatably connected between two partition plates through bearings. The reciprocating lead screw is threadedly connected to the vertical moving seat. The upper end of the reciprocating lead screw is provided with a driving shaft. A motor is provided on the upper side of the condensation shell. The input end of the motor is electrically connected to the output end of the single-chip microcomputer, and the output shaft of the motor is fixedly connected to the upper end of the driving shaft, providing power for the device to clean the impurities on the outer surface of the condensation pipes during the condensation separation process of para-dichlorobenzene.

[0010] Further, the cleaning mechanism further includes through holes, which are evenly opened on the upper side of the vertical moving seat, enabling the liquid to flow between the upper and lower ends of the vertical moving seat and preventing the vertical moving seat from dividing the space between the two partition plates.

[0011] Further, an electric control valve I is provided through the lower end of the connecting pipe, and an electric control valve II is provided through the upper end of the lead-out pipe. The input ends of the electric control valve I and the electric control valve II are both electrically connected to the output end of the single-chip microcomputer, and the opening and closing degree of the pipeline is regulated through the single-chip microcomputer according to requirements.

[0012] Further, an observation window is installed in the wall groove of the aggregation tank, facilitating the observation of the condensation situation of the para-dichlorobenzene condensed in the aggregation tank.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The condenser for separating para-dichlorobenzene has the following advantages:

[0014] 1. The para-dichlorobenzene separated by steam condensation and liquefaction enters the aggregation tank along the connecting pipe. In the initial stage of para-dichlorobenzene condensation and collection, the single-chip microcomputer controls the electric control valve II to close the lead-out pipe, preventing the inhalation of non-condensable gas from the outside through the lead-out pipe. The observation window facilitates the observation of the condensation situation of the para-dichlorobenzene condensed in the aggregation tank. After the liquid level in the aggregation tank accumulates to a certain level, a liquid seal is established. The single-chip microcomputer controls and slowly opens the regulating valve II. The liquid level in the recovery tank connected to the outside through the lead-out pipe gradually rises along the lead-out pipe. Finally, after the pressure reaches equilibrium, the para-dichlorobenzene can smoothly flow out by overcoming the negative pressure and pipeline resistance. On the premise of being easy to observe and the liquid level being adjustable, it can ensure that the para-dichlorobenzene liquid can smoothly flow out by overcoming the negative pressure and pipeline resistance. This condenser for separating para-dichlorobenzene regulates the pressure of the liquefied and separated para-dichlorobenzene, thereby balancing the internal pressure of the device and facilitating the liquefied and separated para-dichlorobenzene to flow out by overcoming the negative pressure.

[0015] 2. When the condenser for dichlorobenzene separation is used for a long time, the single-chip microcomputer closes the first electric control valve, injects clean water between the partitions through the steam pipe, and then the single-chip microcomputer starts the motor to drive the output shaft to drive the driving shaft to rotate. The driving shaft drives the reciprocating lead screw to rotate. The reciprocating lead screw is connected by threads, so that the vertical moving seat reciprocates up and down along the vertical direction of the partition. The vertical moving seat drives the scraping seat to move up and down along the outer side of the condensing pipe vertically, so as to clean the impurities adhered to the outer surface of the condensing pipe, and avoid the influence of impurities on the heat transfer liquefaction efficiency during the condensation of dichlorobenzene. This condenser for dichlorobenzene separation can automatically clean the impurities adhered to the surface of the condensation part, avoiding the influence on the condensation and liquefaction separation efficiency of dichlorobenzene. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present invention;

[0017] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 It is a schematic sectional view of the scraping seat of the present invention;

[0019] Figure 4 It is an enlarged schematic view of part A of the present invention.

[0020] In the figure: 1 condensation shell, 2 single-chip microcomputer, 3 steam pipe, 4 liquid outlet pipe, 5 cold water pipe, 6 water outlet pipe, 7 partition, 8 condensing pipe, 9 cleaning mechanism, 91 vertical moving seat, 92 through hole, 93 scraping seat, 94 reciprocating lead screw, 95 driving shaft, 96 motor, 10 connecting pipe, 11 aggregation tank, 12 lead-out pipe, 13 observation window, 14 first electric control valve, 15 second electric control valve. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-4 , this embodiment provides a technical solution: A condenser for dichlorobenzene separation includes a condensation shell 1 and a cleaning mechanism 9;

[0023] Condensation shell 1: Partition plates 7 are respectively provided at the upper and lower ends inside it. Condensation pipes 8 are evenly distributed and penetrate between the partition plates 7. The side walls of the condensation shell 1 are respectively penetrated with a steam pipe 3 and a liquid outlet pipe 4. The right end of the liquid outlet pipe 4 is provided with an aggregation tank 11 through a connecting pipe 10. A lead-out pipe 12 penetrates the bottom wall of the aggregation tank 11. A cold water pipe 5 penetrates the top wall of the condensation shell 1. A water outlet pipe 6 penetrates the bottom wall of the condensation shell 1. It also includes a single-chip microcomputer 2 which is located outside the condensation shell 1. The input end of the single-chip microcomputer 2 is electrically connected to an external power supply. An electric control valve 14 penetrates the lower end of the connecting pipe 10. An electric control valve 15 penetrates the upper end of the lead-out pipe 12. The input ends of the electric control valve 14 and the electric control valve 15 are both electrically connected to the output end of the single-chip microcomputer 2. An observation window 13 is installed in the wall groove of the aggregation tank 11. When using the device to condense and separate the dichlorobenzene vapor in vacuum distillation, first connect the right end of the lead-out pipe 12 to an external recovery tank, and send the dichlorobenzene vapor into the interior of the condensation shell 1 through the steam pipe 3. Subsequently, external cooling water enters through the cold water pipe 5 and flows out through the condensation pipe 8 and the water outlet pipe 6. The dichlorobenzene vapor contacts the wall of the condensation pipe 8, and through heat transfer, the cooling water adsorbs the heat in the dichlorobenzene vapor, thereby causing the dichlorobenzene vapor to release heat and liquefy into dichlorobenzene. The dichlorobenzene enters the aggregation tank 11 along the connecting pipe 10. At the initial stage of dichlorobenzene condensation and collection, at this time, the single-chip microcomputer 2 controls the electric control valve 15 to close the lead-out pipe 12 to prevent the inhalation of non-condensable gas from the outside through the lead-out pipe 12. The observation window 13 facilitates observing the condensation situation of the dichlorobenzene in the aggregation tank 11. After the liquid level in the aggregation tank 11 accumulates to a certain level to establish a liquid seal, the single-chip microcomputer 2 controls and adjusts the control valve 15 to slowly open. The liquid level in the recovery tank connected to the outside through the lead-out pipe 12 gradually rises along the lead-out pipe 12. Finally, after the pressure reaches equilibrium, the dichlorobenzene can flow out smoothly by overcoming the negative pressure and pipeline resistance. On the premise of being convenient for observation and adjustable liquid level, it can ensure that the dichlorobenzene liquid can flow out smoothly by overcoming the negative pressure and pipeline resistance. This condenser for dichlorobenzene separation adjusts the pressure of the liquefied and separated dichlorobenzene, thereby balancing the internal pressure of the device, and facilitating the liquefied and separated dichlorobenzene to flow out by overcoming the negative pressure;

[0024] Cleaning mechanism 9: It is arranged inside the condensation shell 1. The cleaning mechanism 9 is cooperatively installed with the condensation pipe 8. The cleaning mechanism 9 includes a vertical moving seat 91 and a scraping seat 93. The vertical moving seat 91 is slidably connected inside the condensation shell 1. The inside of the vertical moving seat 91 is provided with evenly distributed scraping seats 93. The scraping seats 93 are all cooperatively installed with the adjacent condensation pipes 8. The cleaning mechanism 9 further includes a reciprocating lead screw 94, a driving shaft 95 and a motor 96. The reciprocating lead screw 94 is rotatably connected between the two partition plates 7 through bearings. The reciprocating lead screw 94 is threadedly connected with the vertical moving seat 91. The upper end of the reciprocating lead screw 94 is provided with a driving shaft 95. A motor 96 is arranged on the upper side of the condensation shell 1. The input end of the motor 96 is electrically connected to the output end of the single-chip microcomputer 2. The output shaft of the motor 96 is fixedly connected to the upper end of the driving shaft 95. The cleaning mechanism 9 further includes through holes 92. The through holes 92 are evenly opened on the upper side of the vertical moving seat 91. When the dichlorobenzene separation condenser is used for a long time, the single-chip microcomputer 2 closes the first electric control valve 14, injects cleaning water between the partition plates 7 through the steam pipe 3, and then the single-chip microcomputer 2 starts the motor 96 to make its output shaft drive the driving shaft 95 to rotate. The driving shaft 95 drives the reciprocating lead screw 94 to rotate. The reciprocating lead screw 94 makes the vertical moving seat 91 move vertically up and down reciprocally along the partition plate 7 through threaded connection. The vertical moving seat 91 drives the scraping seats 93 to move vertically up and down along the outer side of the condensation pipe 8, so as to clean the impurities adhered to the outer surface of the condensation pipe 8, and avoid the influence of the impurities on the heat transfer liquefaction efficiency during the condensation of dichlorobenzene. The through holes 92 enable the liquid at the upper and lower ends of the vertical moving seat 91 to flow, and avoid the vertical moving seat 91 from dividing the space between the two partition plates 7. This dichlorobenzene separation condenser can automatically clean the impurities adhered to the surface of the condensation part, and avoid affecting the condensation liquefaction separation efficiency of dichlorobenzene.

[0025] The working principle of a condenser for dichlorobenzene separation provided by the present utility model is as follows: When using the device to condense and separate the dichlorobenzene vapor from vacuum rectification, first connect the right end of the lead-out pipe 12 to an external recovery tank, and convey the dichlorobenzene vapor through the vapor pipe 3 into the condensation shell 1. Subsequently, external cooling water enters through the cold water pipe 5 and flows out through the condensation pipe 8 and the water outlet pipe 6. The dichlorobenzene vapor contacts the wall of the condensation pipe 8, and through heat transfer, the cooling water adsorbs the heat in the dichlorobenzene vapor, thereby causing the dichlorobenzene vapor to release heat and liquefy into dichlorobenzene. The dichlorobenzene flows into the aggregation tank 11 along the connecting pipe 10. In the initial stage of dichlorobenzene condensation and collection, the single-chip microcomputer 2 controls the electric control valve two 15 to close the lead-out pipe 12, preventing the inhalation of non-condensable gas from the outside through the lead-out pipe 12. The observation window 13 facilitates observing the condensation condition of the dichlorobenzene in the aggregation tank 11. After the liquid level in the aggregation tank 11 accumulates to a certain level, a liquid seal is established. The single-chip microcomputer 2 controls and slowly opens the regulating valve two 15. The liquid level in the recovery tank connected to the outside through the lead-out pipe 12 gradually rises along the lead-out pipe 12. Finally, after the pressure reaches equilibrium, the dichlorobenzene can flow out smoothly by overcoming the negative pressure and pipeline resistance. On the premise of being convenient for observation and having an adjustable liquid level, it can ensure that the dichlorobenzene liquid can flow out smoothly by overcoming the negative pressure and pipeline resistance. When the condenser for dichlorobenzene separation is used for a long time, the single-chip microcomputer 2 closes the electric control valve one 14, injects cleaning water between the partitions 7 through the vapor pipe 3, and then the single-chip microcomputer 2 starts the motor 96, and its output shaft drives the drive shaft 95 to rotate. The drive shaft 95 drives the reciprocating lead screw 94 to rotate. The reciprocating lead screw 94 makes the vertical moving seat 91 reciprocate vertically up and down along the partition 7 through threaded connection. The vertical moving seat 91 drives the scraping seat 93 to move vertically up and down along the outside of the condensation pipe 8, thereby cleaning the impurities adhered to the outer surface of the condensation pipe 8 and avoiding the influence of impurities on the heat transfer and liquefaction efficiency during the condensation of dichlorobenzene. The through hole 92 enables the liquid at the upper and lower ends of the vertical moving seat 91 to flow through, avoiding the vertical moving seat 91 from dividing the space between the two partitions 7.

[0026] It should be noted that in the above embodiments, the single-chip microcomputer 2 can adopt COP8CBE9, the motor 96 can adopt Y80M1-2, and both the electric control valve one 14 and the electric control valve two 15 can adopt ZDLM electric sleeve regulating valves. The single-chip microcomputer 2 controls the motor 96, the electric control valve one 14, and the electric control valve two 15 to work using common methods in the prior art.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A condenser for separating dichlorobenzene, characterized in that: It comprises a condensation shell (1) and a cleaning mechanism (9); Condensation shell (1): partitions (7) are respectively provided at the upper and lower ends of the interior thereof, and uniformly distributed condensation tubes (8) are provided between the partitions (7); a steam pipe (3) and a liquid outlet pipe (4) are respectively provided through the side walls of the condensation shell (1); a gathering tank (11) is provided at the right end of the liquid outlet pipe (4) through a connecting pipe (10); a lead-out pipe (12) is provided through the bottom wall of the gathering tank (11); a cold water pipe (5) is provided through the top wall of the condensation shell (1); and a water outlet pipe (6) is provided through the bottom wall of the condensation shell (1); Cleaning mechanism (9): It is arranged inside the condensation shell (1), and the cleaning mechanism (9) is installed in coordination with the condensation pipe (8).

2. A condenser for separating dichlorobenzene according to claim 1, characterized in that: It also includes a single-chip microcomputer (2), which is located outside the condensation shell (1), and an input end of the single-chip microcomputer (2) is electrically connected to an external power supply.

3. A condenser for separating dichlorobenzene according to claim 2, characterized in that: The cleaning mechanism (9) comprises a vertical displacement seat (91) and a scraper seat (93); the vertical displacement seat (91) is slidably connected to the interior of the condensation shell (1); the interior of the vertical displacement seat (91) is provided with evenly distributed scraper seats (93); and the scraper seats (93) are all installed in cooperation with adjacent condensation tubes (8).

4. A condenser for separating dichlorobenzene according to claim 3, characterized in that: The cleaning mechanism (9) further comprises a reciprocating screw (94), a driving shaft (95) and a motor (96); the reciprocating screw (94) is rotatably connected between the two partitions (7) via a bearing; the reciprocating screw (94) is threadedly connected to the vertical displacement seat (91); a driving shaft (95) is provided at the upper end of the reciprocating screw (94); a motor (96) is provided on the upper side of the condensation shell (1); an input end of the motor (96) is electrically connected to an output end of the single chip microcomputer (2); and an output shaft of the motor (96) is fixedly connected to the upper end of the driving shaft (95).

5. A condenser for separating dichlorobenzene according to claim 3, characterized in that: The cleaning mechanism (9) further comprises through holes (92), and the through holes (92) are evenly opened on the upper side of the vertical displacement seat (91).

6. A condenser for separating dichlorobenzene according to claim 2, characterized in that: The lower end of the connecting pipe (10) is penetrated by an electric regulating valve 1 (14), and the upper end of the lead-out pipe (12) is penetrated by an electric regulating valve 2 (15), and the input ends of the electric regulating valve 1 (14) and the electric regulating valve 2 (15) are both electrically connected to the output end of the single chip computer (2).

7. A condenser for separating dichlorobenzene according to claim 1, characterized in that: An observation window (13) is installed in the wall groove of the aggregation tank (11).

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