Efficient rectification device for preparing isocaprylic acid

Abstract

The utility model provides an efficient rectification device for preparing isocaprylic acid, which belongs to the technical field of isocaprylic acid processing equipment and comprises a rectification tower, a condenser and negative pressure equipment which are sequentially communicated, a first conveying pipeline is arranged between the rectification tower and the condenser, and a second conveying pipeline is arranged between the condenser and the negative pressure equipment. The second conveying pipeline is provided with a flow dividing connector, the flow dividing connector is provided with a first connecting port, a second connecting port and a third connecting port from top to bottom, and the first connecting port and the second connecting port are used for being connected with the second conveying pipeline. The pressure in the rectifying tower is changed through operation of the negative pressure equipment, and materials are rectified through cooperation of the tower plates arranged in the rectifying tower in a staggered mode and the heating wires embedded in the heating assemblies, so that the rectifying tower is more efficient during rectifying work.

Description

Technical Field

[0001] The utility model relates to the technical field of isooctanoic acid processing equipment, in particular to a high-efficiency distillation device for preparing isooctanoic acid. Background Art

[0002] Isooctanoic acid is a colorless, slightly odorous liquid, flammable, slightly soluble in cold water, soluble in hot water and ether, and slightly soluble in ethanol. It can be used as an intermediate for paints and coating driers, an alkyd resin modifier, to produce peroxides as a catalyst for polymerization reactions, and for lubricating oil esters and PVC stabilizers. A distillation device is required for the production of isooctanoic acid. Distillation equipment refers to the equipment used for distillation operations, mainly including distillation towers, reboilers, and condensers.

[0003] In the prior art, when isooctanoic acid is distilled, heating is usually performed at the bottom of the distillation tower. This method is relatively inefficient and greatly affects the production efficiency. Therefore, a high-efficiency distillation device for preparing isooctanoic acid is proposed to solve this problem. Utility Model Content

[0004] In view of this, the utility model provides a high-efficiency distillation device for the preparation of isooctanoic acid, which can change the pressure in the distillation tower by operating a negative pressure device, and distill the material in cooperation with the staggered plates arranged in the distillation tower and the heating wires embedded in the heating assembly, thereby making the distillation tower more efficient when performing distillation work.

[0005] In order to solve the above technical problems, the utility model provides a high-efficiency distillation device for preparing isooctanoic acid, comprising a distillation tower, a condenser and a negative pressure device which are connected in sequence, a first delivery pipeline is arranged between the distillation tower and the condenser, a second delivery pipeline is arranged between the condenser and the negative pressure device, a diverter joint is arranged on the second delivery pipeline, and a first connection port, a second connection port and a third connection port are respectively arranged on the diverter joint from top to bottom, wherein the first connection port and the second connection port are used to connect the second delivery pipeline.

[0006] The distillation tower includes a tower body, with a feeding port and a distillation outlet at the top and a discharge port at the bottom. One end of the corresponding first conveying pipeline is connected to the distillation outlet. In addition, a heating component for heating the inside of the tower body is fixedly provided on the outer wall of the tower body.

[0007] A plurality of tower plate structures are staggered in the tower body, and the tower plate structure comprises a plate body fixed on the inner wall of the tower body, a plurality of transverse cavities are opened on the plate body, and a longitudinal cavity is opened on the plate body between two transverse cavities.

[0008] A raised sleeve is provided on the upper base surface of the plate body corresponding to the longitudinal cavity, a connecting plate is fixedly provided on the upper base surface of the raised sleeve, and a splash-proof cover is detachably provided on the connecting plate.

[0009] An overflow plate is also arranged on the upper base surface of the plate body.

[0010] The heating component comprises a heating wire embedded in the transverse cavity, and the heating wire passes through the tower body and is electrically connected to a controller fixed on the tower body.

[0011] The beneficial effects of the above technical solution of the utility model are as follows:

[0012] 1. The negative pressure equipment is operated to change the pressure in the distillation tower, and the materials are distilled in cooperation with the staggered plates in the distillation tower and the heating wires embedded in the heating assembly, thereby making the distillation tower more efficient during distillation work.

[0013] 2. Start the condenser and negative pressure equipment, start the controller to control the heating wire for heating, and then put the material into the tower from the feeding port on the upper part of the tower body, and then pass through the staggered tower plate structure in the tower body. That is, after the material falls on the plate body, the uppermost plate body begins to be heated, and after the height of the material reaches the overflow plate, it falls to the next tower plate structure.

[0014] 3. Furthermore, the vaporized material is discharged from the distillation outlet. In addition, after the lower material is vaporized, it can rise to the distillation outlet in the gap between the two tower plate structures and the longitudinal cavity opened on the plate body. Further, after entering the first conveying pipeline from the distillation outlet, it is condensed by the condenser to separate the material. The separated material enters the diversion joint from the second conveying pipeline and is discharged from the third connecting port to complete the separation of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of a high-efficiency distillation device for preparing isooctanoic acid according to the utility model;

[0016] Figure 2 It is a side sectional view of the distillation tower of the utility model;

[0017] Figure 3 It is the main cross-sectional view of the distillation tower of the utility model.

[0018] Explanation of the reference numerals: 100, distillation tower; 110, tower body; 111, feeding port; 112, distillation outlet; 113, discharge port; 120, heating assembly; 121, heating wire; 122, controller; 130, tower plate structure; 131, plate body; 132, transverse cavity; 133, longitudinal cavity; 134, raised sleeve; 135, connecting plate; 136, splash cover; 137, overflow plate; 200, condenser; 300, negative pressure device; 400, first conveying pipeline; 500, second conveying pipeline; 600, diverter joint; 601, first connecting port; 602, second connecting port; 603, third connecting port. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0020] like Figure 1-3 As shown:

[0021] The present embodiment provides a high-efficiency distillation device for preparing isooctanoic acid, comprising a distillation tower 100, a condenser 200 and a negative pressure device 300 which are connected in sequence, a first delivery pipeline 400 is arranged between the distillation tower 100 and the condenser 200, a second delivery pipeline 500 is arranged between the condenser 200 and the negative pressure device 300, a diverter joint 600 is arranged on the second delivery pipeline 500, and the diverter joint 600 is respectively provided with a first connection port 601, a second connection port 602 and a third connection port 603 from top to bottom, wherein the first connection port 601 and the second connection port 602 are used to connect the second delivery pipeline 500.

[0022] When in use, start the condenser 200 and the negative pressure device 300, start the controller 122 to control the heating wire 121 for heating, and further the material is fed from the feeding port 111 at the upper part of the tower body 110, and then passes through the staggered tower plate structure 130 in the tower body 110, that is, after the material falls on the plate body 131, the uppermost plate body 131 begins to be heated, and after the height of the material reaches the overflow plate 137, it falls to the next level of the tower plate structure 130, and further, the vaporized material is discharged from the distillation outlet 112. In addition, after the lower material is vaporized, it can rise to the distillation outlet 112 in the gap between the two tower plate structures 130 and the longitudinal cavity 133 opened on the plate body 131, and further, after entering the first conveying pipeline 400 from the distillation outlet 112, it is condensed by the condenser 200 to separate the material, and the separated material enters the diversion joint 600 from the second conveying pipeline 500, and the material is discharged from the third connecting port 603 to complete the separation of the material.

[0023] like Figure 1 , 3As shown, the distillation tower 100 includes a tower body 110, a feeding port 111 and a distillation outlet 112 are provided at the upper portion of the tower body 110, a discharge port 113 is provided at the lower portion, and one end of the corresponding first conveying pipeline 400 is connected to the distillation outlet 112. In addition, a heating component 120 for heating the interior of the tower body 110 is fixedly provided on the outer wall of the tower body 110. The material in the tower body 110 can be heated by the heating component 120 to be vaporized, and then discharged from the tower body 110 through the distillation outlet 112 and processed by the condensation equipment to complete the phase separation.

[0024] like Figure 1 , 2 As shown in FIG. 3 , a plurality of plate structures 130 are staggered in the tower body 110, which can heat the material to the maximum extent. Compared with heating at the side wall or the bottom of the tower body 110, the multi-stage staggered plate body 131 cooperates with the heating wire 121 embedded therein, which can heat the material to the maximum extent and improve the production efficiency. The plate structure 130 includes a plate body 131 fixed to the inner wall of the tower body 110, and a plurality of transverse cavities 132 are opened on the plate body 131. The plate body 131 between the two transverse cavities 132 is opened with a longitudinal cavity 133, and the longitudinal cavity 133 is connected to the convex The raised sleeve 134 is connected. When the gasified material at the bottom cannot completely pass through the gap between the plate bodies 131, it can be gradually upward through the longitudinal cavity 133 and the raised sleeve 134. In addition, the upward airflow can also drive the liquid surface to flip, further accelerating the efficiency of distillation. A raised sleeve 134 is provided on the base surface of the plate body 131 corresponding to the longitudinal cavity 133. A connecting plate 135 is fixedly provided on the base surface of the raised sleeve 134. A splash-proof cover 136 is detachably provided on the connecting plate 135. The splash-proof cover 136 arranged thereon can prevent the material from falling directly from the raised sleeve 134 to the bottom of the tower body 110.

[0025] like Figure 3 As shown, an overflow plate 137 is also provided on the upper base surface of the plate body 131, which can accumulate a liquid level matching its height on the plate body 131 and be heated by the heat generated by the heating wire 121. The heating component 120 includes a heating wire 121 embedded in the transverse cavity 132, and the heating wire 121 passes through the tower body 110 and is electrically connected to a controller 122 fixed on the tower body 110.

[0026] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An efficient distillation device for preparing isooctanoic acid, characterized in that: The invention comprises a distillation tower (100), a condenser (200) and a negative pressure device (300) which are connected in sequence, wherein a first delivery pipeline (400) is arranged between the distillation tower (100) and the condenser (200), a second delivery pipeline (500) is arranged between the condenser (200) and the negative pressure device (300), a flow diversion joint (600) is arranged on the second delivery pipeline (500), and a first connection port (601), a second connection port (602) and a third connection port (603) are respectively arranged on the flow diversion joint (600) from top to bottom, wherein the first connection port (601) and the second connection port (602) are used to connect the second delivery pipeline (500).

2. The high-efficiency distillation device for preparing isooctanoic acid according to claim 1, characterized in that: The distillation tower (100) comprises a tower body (110), wherein the upper portion of the tower body (110) is provided with a feeding port (111) and a distillation outlet (112), and the lower portion is provided with a discharge port (113), and one end of the corresponding first delivery pipeline (400) is connected to the distillation outlet (112). In addition, a heating component (120) for heating the interior of the tower body (110) is fixedly provided on the outer wall of the tower body (110).

3. A highly efficient distillation device for preparing isooctanoic acid as claimed in claim 2, characterized in that: A plurality of tower plate structures (130) are arranged in an alternating manner in the tower body (110), wherein the tower plate structure (130) comprises a plate body (131) fixed to the inner wall of the tower body (110), wherein a plurality of transverse cavities (132) are provided on the plate body (131), and a longitudinal cavity (133) is provided on the plate body (131) between two transverse cavities (132).

4. The high-efficiency distillation device for preparing isooctanoic acid according to claim 3, characterized in that: A raised sleeve (134) is provided on the upper base surface of the plate body (131) corresponding to the longitudinal cavity (133); a connecting plate (135) is fixedly provided on the upper base surface of the raised sleeve (134); and a splash-proof cover (136) is detachably provided on the connecting plate (135).

5. A highly efficient distillation device for preparing isooctanoic acid as claimed in claim 4, characterized in that: An overflow plate (137) is also provided on the upper base surface of the plate body (131).

6. The high-efficiency distillation device for preparing isooctanoic acid according to claim 5, characterized in that: The heating component (120) comprises a heating wire (121) embedded in the transverse cavity (132); the heating wire (121) passes through the tower body (110) and is electrically connected to a controller (122) fixed on the tower body (110).

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