CN217359819U

CN217359819U - Detection apparatus for isoprene extraction rectification section

Info

Publication number: CN217359819U
Application number: CN202221021833.2U
Authority: CN
Inventors: 李云涛; 张美婷; 毛姗姗; 胡倩; 姜海翔
Original assignee: Fushun Yikesi New Material Co ltd
Current assignee: Fushun Yikesi New Material Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-09-02
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a detection device of an isoprene extraction rectification section, which comprises detection equipment and a liquid collection mechanism arranged on a rectification tower; the liquid collecting mechanism comprises an internal pipe arranged inside the rectifying tower and an external pipe arranged outside the rectifying tower, the internal pipe and the external pipe are connected through a mounting piece, and the mounting piece is mounted at a detection port of the rectifying tower; an output pipe communicated with the built-in pipe is arranged in the external pipe, an input port is arranged at the bottom of the built-in pipe, the bottom of the output pipe is connected with a liquid discharge pipe, spiral flow guide parts are arranged in the built-in pipe and the output pipe, and a condensing part is arranged in the external pipe; the liquid collecting mechanism of the utility model is conveniently arranged on the detection port of the rectifying tower, and is convenient to detect the components at the specific position of the rectifying section; spiral water conservancy diversion spare can be with the leading-in inner pipe of steam of detection department, later leading-in output tube, and the condensing part can be to the steam condensation, and liquid after the condensation is convenient to be carried to check out test set from the fluid-discharge tube with sending the liquid hose and is detected.

Description

Detection apparatus for isoprene extraction rectification section

Technical Field

The utility model relates to an isoprene extraction rectification technical field specifically is a detection device of isoprene extraction rectification section.

Background

Isoprene, cyclopentadiene and the like are important raw materials for the synthetic rubber industry. During production, isoprene is separated by adopting an extractive distillation method. The relative volatility of each component can be changed by adopting the extractive distillation process, so that the components can be conveniently separated. The tower section above the material opening further concentrates the volatile components in the rising steam, which is called as the rectifying section. The required components are rectified and condensed to obtain liquid. In the rectification process, the purity of the rectified component needs to be detected at a detection port of the rectification tower. Selecting a corresponding detection instrument according to the corresponding component.

The prior patent publication No. CN214512789U discloses a rectification mechanism capable of detecting product components on line, wherein a UV on-line detection mechanism is arranged in a pipeline and can detect the components of rectification liquid; in the online moisture content detection structure of the rectifying tower of current patent publication No. 215741878U, through will detect first screw thread and install on the pipeline and install the display on the fixed plate through the bolt, changed the mounting means of traditional moisture content detector, make the moisture content detector dismouting of being convenient for, break down at the moisture content detector, be convenient for maintain.

The rectification mechanism or the detection mechanism can carry out corresponding detection operation, but are arranged on a pipeline, so that the product components of the rectification section are not convenient to detect in time, and need to be improved. In order to solve the problems, the application provides a detection device for an isoprene extraction rectification section.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection device of isoprene extraction rectification section to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a detection device for an isoprene extraction rectification section comprises detection equipment and a liquid collection mechanism arranged on a rectification tower;

the liquid collecting mechanism comprises an internal pipe arranged inside the rectifying tower and an external pipe arranged outside the rectifying tower, the internal pipe and the external pipe are connected through a mounting piece, and the mounting piece is mounted at a detection port of the rectifying tower;

the device comprises an external pipe, an internal pipe and a liquid delivery pipe, wherein the external pipe is internally provided with an output pipe communicated with the internal pipe, the bottom of the internal pipe is provided with an input port, the bottom of the output pipe is connected with the liquid delivery pipe, the internal pipe and the output pipe are internally provided with spiral flow guide pieces, the external pipe is internally provided with a condensing piece used for condensing steam in the output pipe, and the liquid delivery pipe is connected with a liquid inlet end of a detection device through a liquid delivery hose.

Preferably, the mounting part comprises a mounting disc and a sealing plate connected to one side of the mounting disc, through holes for mounting the internal pipes are formed in the mounting disc and the sealing plate, and a plurality of fixing holes distributed in a circumferential array are formed in the sealing plate.

Preferably, the spiral guide member comprises a central rod and a spiral blade mounted on the central rod, and a motor for driving the central rod to rotate is mounted at one end, far away from the internal pipe, of the external pipe.

Preferably, the condensation piece includes condenser coil, be equipped with the installation cavity that is used for installing condenser coil between external pipe and the output tube, install the feed liquor pipe of being connected with condenser coil feed liquor end and go out the drain pipe that liquid end is connected with condenser coil on the external pipe.

Preferably, the annular outer wall of the mounting disc is provided with a rubber ring.

Preferably, one end of the central rod is rotatably connected with the inner wall of the end, far away from the external pipe, of the internal pipe, and the other end of the central rod is rotatably connected with the inner wall of the end, far away from the internal pipe, of the output pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the liquid collecting mechanism of the utility model is conveniently arranged on the detection port of the rectifying tower, and is convenient to detect the components at the specific position of the rectifying section;

the utility model discloses well spiral water conservancy diversion spare can be with the leading-in inner pipe of steam that detects the department, later leading-in output tube, and the condensation spare can be to steam condensation, and liquid after the condensation is convenient to be carried to check out test set from the fluid-discharge tube with sending the liquid hose.

Drawings

FIG. 1 is a schematic structural diagram of a detection device of an isoprene extraction rectification section.

FIG. 2 is a schematic structural diagram of a liquid collection mechanism in a detection device of an isoprene extraction rectification section.

FIG. 3 is a schematic diagram of a partial sectional structure of a liquid collecting mechanism in a detection apparatus of an isoprene extraction rectification section.

In the figure: 11. detecting equipment; 12. a liquid delivery hose; 13. a liquid discharge pipe; 14. an external pipe; 15. a build-in tube; 16. a mounting member; 17. an input port; 18. mounting a disc; 19. closing plates; 20. a fixing hole; 21. a motor; 22. a center pole; 23. a helical blade; 24. an output pipe; 25. a condensing coil; 26. a liquid inlet pipe; 27. a liquid outlet pipe.

Detailed Description

Referring to fig. 1-3, in an embodiment of the present invention, a detection apparatus for an isoprene extractive distillation section includes a detection device 11 and a liquid collection mechanism installed on a distillation tower; the detection equipment 11 is selected, and a corresponding component purity detection instrument can be selected according to the component to be detected;

the liquid collecting mechanism comprises an internal pipe 15 arranged inside the rectifying tower and an external pipe 14 arranged outside the rectifying tower, the internal pipe 15 and the external pipe 14 are connected through a mounting piece 16, and the mounting piece 16 is mounted at a detection port of the rectifying tower;

the liquid collecting mechanism is conveniently arranged on a detection port of the rectifying tower, so that components at a specific position of the rectifying section can be conveniently detected;

an output pipe 24 communicated with the internal pipe 15 is arranged in the external pipe 14, an input port 17 is arranged at the bottom of the internal pipe 15, the bottom of the output pipe 24 is connected with a liquid discharge pipe 13, spiral flow guide pieces are arranged in the internal pipe 15 and the output pipe 24, a condensing piece for condensing steam in the output pipe 24 is arranged in the external pipe 14, and the liquid discharge pipe 13 is connected with a liquid inlet end of the detection device 11 through a liquid feeding hose 12;

the spiral diversion part can lead the steam at the detection position into the built-in pipe 15 and then into the output pipe 24, the condensation part can condense the steam, and the condensed liquid is conveniently conveyed to the detection equipment 11 from the liquid discharge pipe 13 and the liquid conveying hose 12 for detection.

The mounting piece 16 comprises a mounting disc 18 and a sealing plate 19 connected to one side of the mounting disc 18, through holes for mounting the internal pipes 15 are formed in the mounting disc 18 and the sealing plate 19, and a plurality of fixing holes 20 which are arranged in a circumferential array are formed in the sealing plate 19; the side wall of the rectifying tower is generally provided with a plurality of detection ports, the sealing covers of the detection ports are taken out, the mounting disc 18 can be arranged in the detection ports, the sealing plate 19 is fixed outside the detection ports to seal the detection ports, and the inner built-in pipes 15 can be arranged in the rectifying tower.

The spiral flow guide piece comprises a central rod 22 and a spiral blade 23 arranged on the central rod 22, and one end of the external pipe 14, far away from the internal pipe 15, is provided with a motor 21 for driving the central rod 22 to rotate; one end of the central rod 22 is rotatably connected with the inner wall of the inner pipe 15 far away from the outer pipe 14, and the other end of the central rod 22 is rotatably connected with the inner wall of the output pipe 24 far away from the inner pipe 15;

the motor 21 works to drive the central rod 22 to rotate, the helical blades 23 rotate, and steam entering the built-in pipe 15 through the input port 17 can be guided to the interior of the output pipe 24.

The condensing part comprises a condensing coil 25, an installation cavity for installing the condensing coil 25 is arranged between the external pipe 14 and the output pipe 24, and a liquid inlet pipe 26 connected with the liquid inlet end of the condensing coil 25 and a liquid outlet pipe 27 connected with the liquid outlet end of the condensing coil 25 are installed on the external pipe 14; the inlet and

outlet pipes

26, 27 can be connected to an external condensate supply.

The steam introduced into the output pipe 24 is condensed into water by the cold air of the condenser coil 25, and then can be discharged from the drain pipe 13.

The annular outer wall of the mounting disc 18 is provided with a rubber ring; the sealing performance of the mounting plate 18 mounted on the inspection port is improved.

The utility model discloses during the use, can all set up a plurality of detection mouths on the lateral wall of rectifying column usually, the closing cap of detection mouth takes out, the detection mouth can be arranged in to mounting disc 18, shrouding 19 is fixed in the detection mouth outside, it seals to detect the mouth, rectifying column inside can be arranged in to built-in pipe 15, motor 21 work drives well core rod 22 and rotates, helical blade 23 rotates, steam energy water conservancy diversion that gets into built-in pipe 15 through input port 17 is inside to output tube 24, receive the effect of condensing, steam condensate water, later can follow fluid-discharge tube 13 and discharge, carry to check out the measuring that carries out component purity to check out test set 11 from sending liquid hose 12.

Claims

1. A detection device for an isoprene extraction rectification section comprises detection equipment (11) and a liquid collection mechanism arranged on a rectification tower;

the method is characterized in that: the liquid collecting mechanism comprises an internal pipe (15) arranged inside the rectifying tower and an external pipe (14) arranged outside the rectifying tower, the internal pipe (15) and the external pipe (14) are connected through a mounting piece (16), and the mounting piece (16) is mounted at a detection port of the rectifying tower;

be equipped with output tube (24) with built-in pipe (15) intercommunication in external pipe (14), built-in pipe (15) bottom is equipped with input port (17), fluid-discharge tube (13) are connected to output tube (24) bottom, install spiral water conservancy diversion spare in built-in pipe (15) and output tube (24), external pipe (14) internally mounted has the condensing member that is used for steam condensation in output tube (24), check out test set (11) feed liquor end is connected through liquid delivery hose (12) in fluid-discharge tube (13).

2. The detection device for the isoprene extraction rectification section according to claim 1, which is characterized in that: the mounting piece (16) comprises a mounting disc (18) and a sealing plate (19) connected to one side of the mounting disc (18), through holes for mounting the built-in pipes (15) are formed in the mounting disc (18) and the sealing plate (19), and a plurality of fixing holes (20) which are arranged in a circumferential array mode are mounted on the sealing plate (19).

3. The detection device for the isoprene extraction rectification section according to claim 1, characterized in that: the spiral guide piece comprises a central rod (22) and spiral blades (23) arranged on the central rod (22), and a motor (21) used for driving the central rod (22) to rotate is arranged at one end, far away from the inner pipe (15), of the outer pipe (14).

4. The detection device for the isoprene extraction rectification section according to claim 1, which is characterized in that: the condensation piece includes condenser coil (25), be equipped with the installation cavity that is used for installing condenser coil (25) between external pipe (14) and output tube (24), install feed liquor pipe (26) of being connected with condenser coil (25) feed liquor end and go out drain pipe (27) of liquid end connection with condenser coil (25) on external pipe (14).

5. The detection device for the isoprene extraction rectification section according to claim 2, characterized in that: and a rubber ring is arranged on the annular outer wall of the mounting disc (18).

6. The detection device for the isoprene extraction rectification section according to claim 3, characterized in that: one end of the central rod (22) is rotatably connected with the inner pipe (15) and is far away from the inner wall of one end of the outer pipe (14), and the other end of the central rod (22) is rotatably connected with the output pipe (24) and is far away from the inner wall of one end of the inner pipe (15).