Rectifying tower circulation assembly for ethylene tar separation

Abstract

The utility model relates to the technical field of rectifying towers, and discloses a rectifying tower circulation assembly for ethylene tar separation, the upper end of a tower body is fixedly connected with a gas outlet pipe, the end, away from the tower body, of the gas outlet pipe is fixedly connected with a condenser, the lower end of the condenser is fixedly connected with a liquid outlet pipe, and the lower end of the liquid outlet pipe is fixedly connected with a backflow box; and one side of the backflow box is fixedly connected with a backflow pipe. The liquid spraying pipe is fixedly connected to the surface of the backflow pipe, the spraying head is fixedly connected to the lower end of the liquid spraying pipe, during use, liquid flowing out of the condenser can flow into the backflow box, then the first pump body is started to pump the liquid out of the backflow box, and the liquid is sprayed out of the spraying head through the backflow pipe and the liquid spraying pipe; liquid is sprayed into liquid drops with uniform size through the spray head, so that the contact area and the contact time between a liquid phase and a gas phase can be increased, and the separation rate is improved.

Description

Technical Field

[0001] The utility model relates to the field of distillation tower equipment, in particular to a distillation tower circulation component used for ethylene tar separation. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. It uses the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, to transfer the light components in the liquid phase to the gas phase, and the heavy components in the gas phase to the liquid phase, thereby achieving the purpose of separation. As an important unit equipment in the oil refining, petrochemical, fine chemical, food, medicine, environmental protection and other industries, the distillation tower is a common equipment in the ethylene tar separation process.

[0003] When the existing distillation tower is distilling the raw materials, the heated gas can only contact the liquid on the tower plate through the holes opened inside the tower plate, resulting in a relatively small contact area between the liquid and gas phase materials and a short contact time, thereby resulting in a low separation rate. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a rectification tower circulation component for separating ethylene tar.

[0005] To achieve the above objectives, this application provides the following technical solutions:

[0006] A distillation tower circulation component for ethylene tar separation, wherein an air outlet pipe is fixedly connected to the upper end of the tower body, a condenser is fixedly connected to the end of the air outlet pipe away from the tower body, a liquid outlet pipe is fixedly connected to the lower end of the condenser, a reflux box is fixedly connected to the lower end of the liquid outlet pipe, and a reflux pipe is fixedly connected to one side of the reflux box. The end of the reflux pipe close to the reflux box is fixedly connected to a first pump body, one end of the reflux pipe passes through the side wall of the tower body and is fixedly connected to multiple groups of liquid spray pipes distributed in a linear array, wherein each group consists of two liquid spray pipes, two nozzles are fixedly connected to the lower end of the liquid spray pipe, and a plug is fixedly connected to one end of the liquid spray pipe.

[0007] Through the above scheme, a liquid spray pipe is fixedly connected to the surface of the reflux pipe, and a nozzle is fixedly connected to the lower end of the liquid spray pipe. When in use, the liquid flowing out of the condenser will flow into the inside of the reflux box, and then the first pump body is started to draw the liquid out from the inside of the reflux box, and then the liquid is sprayed out from the nozzle through the reflux pipe and the liquid spray pipe. The liquid is sprayed into droplets of uniform size through the nozzle, which can increase the contact area and contact time between the liquid phase and the gas phase, thereby improving the separation rate.

[0008] Furthermore, the return pipe is fixedly connected to two mounting brackets on the outside, the upper ends of the two mounting brackets are fixedly connected to a fixing bracket, and one end of the two fixing brackets is fixedly connected to the upper end of the tower body. Through the above solution, by fixing the two mounting brackets on the outside of the return pipe, the stability and safety of the equipment can be increased.

[0009] Furthermore, a discharge pipe is fixedly connected to the side of the reflux box away from the reflux pipe. Through the above solution, the separated light component will flow out through the discharge pipe.

[0010] Furthermore, four supporting columns are fixedly connected to the lower end of the tower body. Through the above solution, the tower body is connected with the four supporting columns, which can ensure the stability and support of the tower body.

[0011] Furthermore, a connecting pipe is fixedly connected to the lower end of the tower body, and a solenoid valve is fixedly connected to the upper end of the connecting pipe. Through the above solution, the solenoid valve can control the flow of materials by controlling the opening and closing of the valve.

[0012] Furthermore, the end of the connecting pipe away from the electromagnetic valve is fixedly connected to the reboiler, and the middle of the connecting pipe is fixedly connected to the second pump body. Through the above solution, the second pump body can pump the liquid inside the tower body into the reboiler.

[0013] Furthermore, an air inlet pipe is fixedly connected to the upper end of the reboiler, and one end of the air inlet pipe away from the reboiler is fixedly connected to the surface of the tower body. Through the above scheme, gas can be introduced into a specific position of the tower body through the air inlet pipe to achieve full contact between gas and liquid.

[0014] Furthermore, a feed pipe is fixedly connected to the surface of the tower body, and a connecting flange is fixedly connected to one end of the feed pipe. Through the above solution, the connecting flange can provide good sealing performance, thereby ensuring that the material will not leak during the transportation process.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] The utility model has a liquid spraying pipe fixedly connected to the surface of the reflux pipe, and a nozzle fixedly connected to the lower end of the liquid spraying pipe. When in use, the liquid flowing out of the condenser will flow into the inside of the reflux box, and then the first pump body is started to extract the liquid from the inside of the reflux box, and the liquid is sprayed out from the nozzle through the reflux pipe and the liquid spraying pipe. The liquid is sprayed into droplets of uniform size by the nozzle, which can increase the contact area and contact time between the liquid phase and the gas phase, thereby improving the separation rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the installation structure of the solenoid valve of the utility model;

[0019] Figure 3 It is a cross-sectional view of the internal structure of the tower body of the utility model;

[0020] Figure 4 yes Figure 3 A magnified view of the structure in the middle.

[0021] In the figure: 1. support column; 2. tower body; 3. air outlet pipe; 4. condenser; 5. reflux box; 6. liquid outlet pipe; 7. reflux pipe; 8. first pump body; 9. liquid spray pipe; 10. nozzle; 11. plug; 12. mounting frame; 13. fixing frame; 14. feed pipe; 15. connecting flange; 16. connecting pipe; 17. solenoid valve; 18. second pump body; 19. reboiler; 20. air inlet pipe, 21. discharge pipe. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and the best embodiment. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0023] In the description of the utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the utility model.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", 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 direct connection, an indirect connection through an intermediate medium, or the internal connection 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 specific circumstances.

[0025] See also Figure 1-4In this embodiment, a distillation tower circulation component for separating ethylene tar is provided, wherein an air outlet pipe 3 is fixedly connected to the upper end of a tower body 2, an end of the air outlet pipe 3 away from the tower body 2 is fixedly connected to a condenser 4, a liquid outlet pipe 6 is fixedly connected to the lower end of the condenser 4, a reflux box 5 is fixedly connected to the lower end of the liquid outlet pipe 6, a reflux pipe 7 is fixedly connected to one side of the reflux box 5, an end of the reflux pipe 7 close to the reflux box 5 is fixedly connected to a first pump body 8, one end of the reflux pipe 7 passes through the side wall of the tower body 2 and is fixedly connected to a plurality of groups of liquid spray pipes 9 distributed in a linear array, wherein each group consists of two liquid spray pipes 9, and two nozzles 10 are fixedly connected to the lower end of the liquid spray pipe 9, and the spray nozzles 10 are fixedly connected to the lower end of the liquid spray pipe 9. A plug 11 is fixedly connected to one end of the liquid pipe 9, two mounting frames 12 are fixedly connected to the outside of the reflux pipe 7, and the upper ends of the two mounting frames 12 are fixedly connected to a fixing frame 13, and one end of the two fixing frames 13 is fixedly connected to the upper end of the inside of the tower body 2. By fixing the two fixing frames 13 to the outside of the reflux pipe 7, the stability and safety of the equipment can be increased. A discharge pipe 21 is fixedly connected to the side of the reflux box 5 away from the reflux pipe 7, and the separated light components will flow out through the discharge pipe 21. Four support columns 1 are fixedly connected to the lower end of the tower body 2, and the tower body 2 is connected to the four support columns 1 to ensure the stability and support of the tower body 2.

[0026] A connecting pipe 16 is fixedly connected to the lower end of the tower body 2, and a solenoid valve 17 is fixedly connected to the upper end of the connecting pipe 16. The solenoid valve 17 can control the flow rate of the material by controlling the opening and closing of the valve. The end of the connecting pipe 16 away from the solenoid valve 17 is fixedly connected to a reboiler 19, and a second pump body 18 is fixedly connected to the middle of the connecting pipe 16. The second pump body 18 can pump the liquid inside the tower body 2 into the reboiler 19. An air inlet pipe 20 is fixedly connected to the upper end of the reboiler 19, and one end of the air inlet pipe 20 away from the reboiler 19 is fixedly connected to the surface of the tower body 2. Through the air inlet pipe 20, gas can be introduced into a specific position of the tower body 2 to achieve full contact between gas and liquid. A feed pipe 14 is fixedly connected to the surface of the tower body 2, and one end of the feed pipe 14 is fixedly connected to a connecting flange 15. The connecting flange 15 can provide good sealing performance, thereby ensuring that the material will not leak during the transportation process.

[0027] In this embodiment, a liquid spray pipe 9 is fixedly connected to the surface of the reflux pipe 7, and a nozzle 10 is fixedly connected to the lower end of the liquid spray pipe 9. When in use, the liquid flowing out of the condenser 4 will flow into the reflux box 5, and then the first pump body 8 is started to extract the liquid from the inside of the reflux box 5, and then the liquid is sprayed out from the nozzle 10 through the reflux pipe 7 and the liquid spray pipe 9. The liquid is sprayed into droplets of uniform size by the nozzle 10, which can increase the contact area and contact time between the liquid phase and the gas phase, thereby improving the separation rate.

[0028] The working principle of the above embodiment is:

[0029] When in use, the liquid to be separated will pass through the feed pipe 14 and enter the bottom end of the tower body 2, and then enter the reboiler 19 through the connecting pipe 16. Steam will be generated after being heated in the reboiler 19. The steam will enter the tower body 2 through the air inlet pipe 20, and then move on the box. Then the steam will enter the condenser 4 through the air outlet pipe 3. The liquid flowing out of the condenser 4 will flow into the reflux box 5, and then the first pump body 8 will be started to extract the liquid from the reflux box 5, and spray it from the nozzle 10 through the reflux pipe 7 and the liquid spray pipe 9. Spraying the liquid into droplets of uniform size through the nozzle 10 can increase the contact area and contact time between the liquid phase and the gas phase, thereby improving the separation rate.

[0030] The above is only 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A distillation tower circulation component for separating ethylene tar, characterized in that: The upper end of the tower body (2) is fixedly connected to an air outlet pipe (3), one end of the air outlet pipe (3) away from the tower body (2) is fixedly connected to a condenser (4), the lower end of the condenser (4) is fixedly connected to a liquid outlet pipe (6), the lower end of the liquid outlet pipe (6) is fixedly connected to a reflux box (5), and one side of the reflux box (5) is fixedly connected to a reflux pipe (7); One end of the reflux pipe (7) close to the reflux box (5) is fixedly connected to a first pump body (8); one end of the reflux pipe (7) passes through the side wall of the tower body (2) and is fixedly connected to a plurality of groups of liquid spraying pipes (9) distributed in a linear array, wherein each group is composed of two liquid spraying pipes (9); two spray heads (10) are fixedly connected to the lower ends of the liquid spraying pipes (9); and one end of the liquid spraying pipe (9) is fixedly connected to a plug (11).

2. A distillation tower circulation component for ethylene tar separation according to claim 1, characterized in that: The return pipe (7) is fixedly connected to two mounting frames (12) on the outside, the upper ends of the two mounting frames (12) are fixedly connected to a fixing frame (13), and one end of the two fixing frames (13) is fixedly connected to the upper end of the inside of the tower body (2).

3. A distillation tower circulation component for ethylene tar separation according to claim 2, characterized in that: A discharge pipe (21) is fixedly connected to the side of the reflux box (5) away from the reflux pipe (7).

4. A distillation tower circulation component for ethylene tar separation according to claim 1, characterized in that: Four support columns (1) are fixedly connected to the lower end of the tower body (2).

5. A distillation tower circulation component for ethylene tar separation according to claim 1, characterized in that: The lower end of the tower body (2) is fixedly connected to a connecting pipe (16), and the upper end of the connecting pipe (16) is fixedly connected to a solenoid valve (17).

6. A distillation tower circulation component for ethylene tar separation according to claim 5, characterized in that: One end of the connecting pipe (16) away from the solenoid valve (17) is fixedly connected to a reboiler (19), and the middle part of the connecting pipe (16) is fixedly connected to a second pump body (18).

7. A distillation tower circulation component for ethylene tar separation according to claim 6, characterized in that: An air inlet pipe (20) is fixedly connected to the upper end of the reboiler (19), and one end of the air inlet pipe (20) away from the reboiler (19) is fixedly connected to the surface of the tower body (2).

8. A distillation tower circulation component for ethylene tar separation according to claim 1, characterized in that: A feed pipe (14) is fixedly connected to the surface of the tower body (2), and a connecting flange (15) is fixedly connected to one end of the feed pipe (14).

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