Top reflux device of liquid rectifying tower

Abstract

The utility model discloses a liquid rectifying tower top reflux device, which belongs to the technical field of reflux devices and comprises a reflux tank, a condenser and a filter box, an air inlet pipe is mounted at the top end of the reflux tank, a stirring component is mounted in the reflux tank, the reflux tank is communicated with the air inlet end of the condenser through an air outlet pipe, and the air outlet pipe is communicated with the air inlet end of the condenser. The output end of the condenser is connected with a water outlet pipe, an electromagnetic valve is installed on the water outlet pipe, one end of the water outlet pipe is connected with the filter box, a semicircular groove is formed in one side of the inner wall of the filter box, a guide pipe is rotatably installed in the filter box, a partition plate is fixedly installed in the guide pipe, and supports are fixedly installed on the two sides of the partition plate; a filter box is slidably mounted at the top end of the support, openings matched with the filter box are symmetrically formed in the outer side of the guide pipe, a discharging pipe is mounted at the bottom end of the filter box, the filter box can be detached and cleaned without stopping working, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of reflux devices, in particular to a liquid distillation tower top reflux device. Background Art

[0002] At present, the distillation tower is a tower-type gas-liquid contact device for distillation. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, and the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. The distillation tower is also a mass transfer and heat transfer device that is widely used in petrochemical production.

[0003] Distillation towers are generally equipped with reflux pipes, the purpose of which is to return the escaped part to the distillation tower for re-boiler to achieve the highest recovery rate. The existing reflux tanks generally have a filtering function, but the filter plate is prone to clogging during long-term processing. At this time, the processing needs to be stopped for cleaning, resulting in reduced work efficiency. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a liquid distillation tower top reflux device, which aims to improve the problem that the filter plate is easily blocked during long-term processing, and the processing needs to be stopped for cleaning, resulting in reduced work efficiency.

[0005] The utility model is implemented as follows: a reflux device at the top of a liquid distillation tower comprises a reflux tank, a condenser and a filter box, an air inlet pipe is installed at the top of the reflux tank, a stirring assembly is installed in the reflux tank, the reflux tank is communicated with the air inlet end of the condenser through an air outlet pipe, the output end of the condenser is connected with a water outlet pipe, a solenoid valve is installed on the water outlet pipe and one end is connected with the filter box, a semicircular groove is provided on one side of the inner wall of the filter box, a conduit is rotatably installed in the filter box, the conduit is slidably connected with the inner wall of the semicircular groove, a partition is fixedly installed in the conduit, brackets are fixedly installed on both sides of the partition, a filter box is slidably installed on the top of the bracket, an opening matching with the filter box is symmetrically provided on the outer side of the conduit, a positioning assembly matching with the filter box is installed on one side of the inner wall of the filter box, and a discharge pipe is installed at the bottom end of the filter box.

[0006] In the preferred technical solution of the utility model, the reflux tank and the condenser are fixedly installed on the top of the filter box, and one end of the air inlet pipe is connected to the distillation outlet at the top of the distillation kettle.

[0007] In the preferred technical solution of the present utility model, the stirring assembly includes a first motor and stirring blades, a rotating shaft is rotatably installed on the inner wall of the reflux tank, the top end of the rotating shaft is fixedly connected to the first motor, a plurality of stirring blades are fixedly installed on the outer side of the rotating shaft, the first motor is fixedly installed on the top end of the reflux tank, and the rotating shaft is arranged at the center of the reflux tank.

[0008] In the preferred technical solution of the present utility model, the connection between the water outlet pipe and the filter box is directly above the semicircular groove, and the connection between the material discharge pipe and the filter box is directly below the semicircular groove. A second motor is fixedly installed at the bottom end of the filter box, and the output end of the second motor passes through the bottom end of the filter box and is fixedly connected to the bottom end of the partition. The partition is arranged at the center of the inside of the conduit, and the conduit is made of a hard tube.

[0009] In the preferred technical solution of the utility model, the filter box is semicircular, the bottom end of the filter box is provided with a filter screen, and the filter screen at the bottom end of the filter box is inclined.

[0010] In the preferred technical solution of the utility model, grooves are symmetrically arranged on both sides of the partition, multiple springs are fixedly installed on the inner wall of the groove, a push plate is fixedly installed on one end of the spring, the push plate is slidably connected to the inner wall of the groove, and one side of the push plate is movably connected to one side of the filter box.

[0011] In the preferred technical solution of the present utility model, the positioning assembly includes a threaded rod, a slider and a clamping block. The threaded rod is rotatably installed on one side of the inner wall of the filter box, one end of the threaded rod is fixedly connected to the third motor, the slider is threadedly installed on the outer side of the threaded rod, a support rod is fixedly installed on one side of the slider, one end of the support rod is fixedly connected to the clamping block, and an arc groove matching the outer side of the conduit is provided on one side of the clamping block. When the clamping block moves to fit the outer side of the conduit, the conduit is slidably connected to the inner wall of the arc groove.

[0012] In the preferred technical solution of the utility model, a guide rod is fixedly installed on one side of the filter box, the slider is slidably installed on the guide rod, and a sliding door is hinged on one side of the filter box.

[0013] The beneficial effects of the utility model are as follows: the liquid rectification tower top reflux device obtained by the above design of the utility model connects one end of the air inlet pipe with the distillation outlet at the top of the distillation kettle, and then connects the discharge pipe with one side of the distillation kettle, and places the filter box at the top of the distillation kettle, and the hot gas first enters the reflux tank through the air inlet pipe, and the first motor is started to drive the rotating shaft to rotate, and the rotating shaft drives the stirring blade to evenly stir the hot gas in the reflux tank, and the hot gas after stirring enters the condenser to be cooled into liquid and enters the conduit in the filter box through the outlet pipe, at this time, the liquid is filtered by the filter box and then returned to the distillation kettle through the discharge pipe, when the filter box needs to be blocked and cleaned, the second motor is started to drive the conduit to rotate 180 degrees through the partition, and at this time, the sliding door is opened and the third motor is started, and the third motor drives the threaded rod to rotate, and the threaded rod rotates and drives the clamping block to move through the slider and the support rod, and when the clamping block is separated from the outer side of the conduit, the push plate ejects the filter box that needs to be cleaned through the elastic force of the spring, and it can be cleaned and reinstalled at this time, and when the filter box is blocked and needs to be cleaned, this device can disassemble and clean the filter box without stopping work, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of a liquid distillation tower top reflux device provided by an embodiment of the utility model;

[0016] Figure 2 A schematic diagram of the structure of a stirring assembly is provided for an embodiment of the utility model;

[0017] Figure 3 A schematic diagram of the internal structure of the filter box is provided for the embodiment of the utility model;

[0018] Figure 4 A schematic diagram of the internal structure of a catheter is provided for an embodiment of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0020] Figure 6 A structural schematic diagram of a filter box is provided for an implementation mode of the utility model.

[0021] In the figure: 110-reflux tank; 111-inlet pipe; 112-first motor; 113-stirring blade; 114-rotating shaft; 120-condenser; 121-water outlet pipe; 130-filter box; 131-conduit; 132-partition; 1321-groove; 1322-spring; 1323-push plate; 133-bracket; 134-filter box; 135-discharge pipe; 136-second motor; 140-threaded rod; 141-slider; 142-clamp block; 143-third motor; 144-guide rod. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 and Figure 2 The utility model provides a technical solution: a liquid distillation tower top reflux device, including a reflux tank 110, a condenser 120 and a filter box 130, an air inlet pipe 111 is installed at the top of the reflux tank 110, the reflux tank 110 and the condenser 120 are fixedly installed at the top of the filter box 130, one end of the air inlet pipe 111 is connected to the distillation outlet at the top of the distillation kettle, a stirring component is installed in the reflux tank 110, the air inlet end of the reflux tank 110 is connected to the condenser 120 through the air outlet pipe, the output end of the condenser 120 is connected to the water outlet pipe 121, and an electromagnetic The valve has one end connected to the filter box 130, a semicircular groove is provided on one side of the inner wall of the filter box 130, a conduit 131 is rotatably installed in the filter box 130, the conduit 131 is slidably connected to the inner wall of the semicircular groove, a partition 132 is fixedly installed in the conduit 131, brackets 133 are fixedly installed on both sides of the partition 132, a filter box 134 is slidably installed on the top of the bracket 133, openings cooperating with the filter box 134 are symmetrically provided on the outer side of the conduit 131, a positioning component cooperating with the filter box 134 is installed on one side of the inner wall of the filter box 130, and a discharge pipe 135 is installed at the bottom of the filter box 130.

[0024] In some specific embodiments, the stirring assembly includes a first motor 112 and a stirring blade 113. A rotating shaft 114 is rotatably installed on the inner wall of the reflux tank 110. The top of the rotating shaft 114 is fixedly connected to the first motor 112. A plurality of stirring blades 113 are fixedly installed on the outer side of the rotating shaft 114 to facilitate uniform stirring of the hot air before it enters the condenser 120.

[0025] See also Figure 3-Figure 6The connection between the water outlet pipe 121 and the filter box 130 is directly above the semicircular groove, and the connection between the discharge pipe 135 and the filter box 130 is directly below the semicircular groove. The second motor 136 is fixedly installed at the bottom of the filter box 130. The output end of the second motor 136 passes through the bottom of the filter box 130 and is fixedly connected to the bottom of the partition 132. The partition 132 is arranged at the center of the conduit 131. The conduit 131 is made of a hard tube. The positioning assembly includes a threaded rod 140, a slider 141 and a clamping block 142. The threaded rod 140 is rotated on one side of the inner wall of the filter box 130. Rod 140, one end of the threaded rod 140 is fixedly connected to the third motor 143, a slider 141 is threadedly installed on the outer side of the threaded rod 140, a support rod is fixedly installed on one side of the slider 141, one end of the support rod is fixedly connected to a clamping block 142, one side of the clamping block 142 is provided with an arc groove matching the outer side of the conduit 131, when the clamping block 142 moves to fit the outer side of the conduit 131, the conduit 131 is slidably connected to the inner wall of the arc groove, a guide rod 144 is fixedly installed on one side of the filter box 130, the slider 141 is slidably installed on the guide rod 144, and a sliding door is hinged on one side of the filter box 130.

[0026] In some specific implementation schemes, the filter box 134 is semicircular in shape, and a filter screen is provided at the bottom of the filter box 134 . The filter screen at the bottom of the filter box 134 is tilted, which can effectively slow down the clogging speed of the filter box 134 .

[0027] In some specific embodiments, grooves 1321 are symmetrically arranged on both sides of the partition 132, and multiple springs 1322 are fixedly installed on the inner wall of the groove 1321. A push plate 1323 is fixedly installed on one end of the spring 1322. The push plate 1323 is slidably connected to the inner wall of the groove 1321, and one side of the push plate 1323 is movably connected to one side of the filter box 134. The outer side of the filter box 134 is arc-shaped and inconvenient to pull. The cooperation of the spring 1322 and the push plate 1323 can quickly push out the filter box 134.

[0028] Working principle: connect one end of the air inlet pipe 111 to the distillation outlet at the top of the distillation kettle, then connect the discharge pipe 135 to one side of the distillation kettle, place the filter box 130 on the top of the distillation kettle, and the hot air first enters the reflux tank 110 through the air inlet pipe 111, start the first motor 112 to drive the rotating shaft 114 to rotate, and the rotating shaft 114 drives the stirring blade 113 to evenly stir the hot air in the reflux tank 110. The hot air after stirring enters the condenser 120 and is cooled into liquid. It enters the conduit 131 in the filter box 130 through the outlet pipe 121. At this time, the liquid passes through the filter box 134. After filtration, the liquid returns to the distillation kettle through the discharge pipe 135. When the filter box 134 needs to be blocked and cleaned, the second motor 136 is started to drive the conduit 131 to rotate 180° through the partition 132. At this time, the sliding door is opened and the third motor 143 is started. The third motor 143 drives the threaded rod 140 to rotate. The rotation of the threaded rod 140 drives the clamping block 142 to move through the slider 141 and the support rod. When the clamping block 142 is separated from the outside of the conduit 131, the push plate 1323 ejects the filter box 134 that needs to be cleaned through the elastic force of the spring 1322. At this time, it can be cleaned and then installed again.

[0029] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid distillation tower top reflux device, comprising a reflux tank, a condenser and a filter box, characterized in that: An air inlet pipe is installed at the top of the reflux tank, a stirring assembly is installed in the reflux tank, the reflux tank is communicated with the air inlet end of the condenser through an air outlet pipe, the output end of the condenser is connected to a water outlet pipe, a solenoid valve is installed on the water outlet pipe and one end is connected to the filter box, a semicircular groove is provided on one side of the inner wall of the filter box, a conduit is rotatably installed in the filter box, the conduit is slidably connected to the inner wall of the semicircular groove, a partition is fixedly installed in the conduit, brackets are fixedly installed on both sides of the partition, a filter box is slidably installed on the top of the bracket, openings matching the filter box are symmetrically provided on the outer side of the conduit, a positioning assembly matching the filter box is installed on one side of the inner wall of the filter box, and a discharge pipe is installed at the bottom of the filter box.

2. The liquid distillation tower top reflux device according to claim 1, characterized in that: The reflux tank and the condenser are fixedly mounted on the top of the filter box, and one end of the air inlet pipe is connected to the distillation outlet at the top of the distillation kettle.

3. The liquid distillation tower top reflux device according to claim 1, characterized in that: The stirring assembly includes a first motor and stirring blades. A rotating shaft is rotatably installed on the inner wall of the reflux tank. The top end of the rotating shaft is fixedly connected to the first motor. A plurality of stirring blades are fixedly installed on the outer side of the rotating shaft.

4. The liquid distillation tower top reflux device according to claim 1, characterized in that: The connection between the water outlet pipe and the filter box is directly above the semicircular groove, and the connection between the material discharge pipe and the filter box is directly below the semicircular groove. A second motor is fixedly installed at the bottom end of the filter box, and the output end of the second motor passes through the bottom end of the filter box and is fixedly connected to the bottom end of the partition.

5. The liquid distillation tower top reflux device according to claim 1, characterized in that: The filter box is arranged in a semicircular shape, and a filter screen is arranged at the bottom end of the filter box.

6. The liquid distillation tower top reflux device according to claim 1, characterized in that: Grooves are symmetrically arranged on both sides of the partition, a plurality of springs are fixedly installed on the inner walls of the grooves, and a push plate is fixedly installed on one end of the spring.

7. The liquid distillation tower top reflux device according to claim 1, characterized in that: The positioning assembly includes a threaded rod, a slider and a clamping block. The threaded rod is rotatably installed on one side of the inner wall of the filter box, one end of the threaded rod is fixedly connected to the third motor, the slider is threadedly installed on the outer side of the threaded rod, a support rod is fixedly installed on one side of the slider, one end of the support rod is fixedly connected to the clamping block, and one side of the clamping block is provided with an arc groove matching the outer side of the catheter.

8. The liquid distillation tower top reflux device according to claim 7, characterized in that: A guide rod is fixedly installed on one side of the filter box, and the sliding block is slidably installed on the guide rod. A sliding door is hinged on one side of the filter box.

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