CN214767564U

CN214767564U - Reactor cleaning system

Info

Publication number: CN214767564U
Application number: CN202120075973.7U
Authority: CN
Inventors: 李顺松
Original assignee: Changle Hengshen Synthetic Fiber Co Ltd
Current assignee: Fujian Hengshen Synthetic Fiber Technology Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2021-11-19
Anticipated expiration: 2031-01-12

Abstract

The utility model relates to a reactor cleaning system and the cleaning of a prepolymerization pipeline reactor. Including a plurality of scavenge pipes that are used for the circulation washing liquid of applying mechanically, the scavenge pipe includes the feed liquor pipe, returns the liquid pipe, the feed liquor pipe return the liquid pipe and set up respectively in every section empty pipe's of reactor casing both sides to with the inside intercommunication of casing. The utility model discloses a setting of washing the pipeline makes the reactor empty pipe section effectively wash. Through valve combination and switching of the inlet pipe and the return pipe, the cleaning is more thorough.

Description

Reactor cleaning system

Technical Field

The utility model relates to a reactor cleaning system and the cleaning of a prepolymerization pipeline reactor.

Background

In the production of spandex, a prepolymerization reactor is one of important key devices, and the main function of the reactor is to add materials according to a certain process requirement proportion, uniformly stir and perform prepolymerization reaction, store and supply for post polymerization reaction. In the specific production process, PTMEG and MDI are reacted in a prepolymerization pipeline reactor to generate prepolymer, and the prepolymer is transferred to the next working procedure by a pump after the reaction is finished. However, the prepolymerization pipeline reactor is easy to cause the following problems: because the R2300B/C empty pipe section runs for a long time, gel appears inside but can not be treated or cleaned under the condition of normal production, the pressure of the reactor is too high, the prepolymerization can not be started, the production is finally influenced, and the shutdown and the production halt are caused.

Disclosure of Invention

The to-be-solved technical problem of the utility model lies in providing a reactor cleaning system, can effectively clear away the inside gel of pipeline.

The utility model discloses a realize like this:

the utility model provides a reactor cleaning system, includes a plurality of purge tubes that are used for the circulation washing liquid of applying mechanically, the purge tube includes the feed liquor pipe, returns the liquid pipe, the feed liquor pipe return the liquid pipe and set up respectively in every section empty pipe's of reactor casing both sides to with the inside intercommunication of casing.

Furthermore, the other end of the liquid inlet pipe is communicated with a cleaning liquid inlet, and the other end of the liquid return pipe is communicated with a cleaning liquid return port.

Furthermore, the liquid inlet pipe and the liquid return pipe are provided with flow valves at one end connected with the shell.

Further, the scavenge pipe is still including switching feed liquor pipe, switching back the liquid pipe, switch the feed liquor pipe respectively with the washing liquid inlet return the liquid pipe intercommunication, switch back the liquid pipe respectively with the washing liquid returns the liquid mouth, feed liquor pipe intercommunication.

Furthermore, flow valves are arranged on the switching liquid inlet pipe and the switching liquid return pipe.

Furthermore, flow valves are arranged on pipelines between the communication positions of the switching liquid inlet pipe and the liquid return pipe and the communication positions of the switching liquid return pipe and the cleaning liquid return port, and flow valves are arranged on pipelines between the communication positions of the switching liquid return pipe and the liquid inlet pipe and the communication positions of the switching liquid inlet pipe and the cleaning liquid inlet port.

The utility model has the advantages that: through the arrangement of the cleaning pipeline, the empty pipe section of the reactor is effectively cleaned. Through valve combination and switching of the inlet pipe and the return pipe, the cleaning is more thorough.

Drawings

The invention will be further described with reference to the following examples with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of switching between the inlet and the return pipes.

Detailed Description

Please refer to fig. 1, the utility model discloses a reactor cleaning system, including a plurality of purge tubes that are used for circulating the washing liquid of being applied to, the purge tube includes feed liquor pipe 1, returns liquid pipe 2, feed liquor pipe 1, it sets up respectively in the casing both sides of every section of empty pipe of reactor to return liquid pipe 2 to with the inside intercommunication of casing. The other end of the liquid inlet pipe 1 is communicated with a cleaning liquid inlet, and the other end of the liquid return pipe 2 is communicated with a cleaning liquid return port. Each set of liquid inlet pipe 1 and liquid return pipe 2 are arranged in parallel. By setting the flow valve, a certain empty pipe section can be cleaned independently.

As shown in fig. 2, the cleaning pipe further includes a switching liquid inlet pipe 3 and a switching liquid return pipe 4, the switching liquid inlet pipe is respectively communicated with the cleaning liquid inlet and the liquid return pipe, and the switching liquid return pipe is respectively communicated with the cleaning liquid return port and the liquid inlet pipe. The liquid inlet pipe and the liquid return pipe are switched to be provided with flow valves.

Switch the feed liquor pipe with communicate department 1 'of returning the liquid pipe switch back the liquid pipe with be equipped with the flow valve on the pipeline between the intercommunication department 4' of washing liquid return liquid mouth, switch back the liquid pipe with communicate department 2 'of feed liquor pipe switch the feed liquor pipe with be equipped with the flow valve on the pipeline between the intercommunication department 3' of washing liquid inlet. Through valve combination and switching of the inlet pipe and the return pipe, the inlet pipe and the return pipe are changed, so that reverse cleaning is performed, and cleaning is more thorough.

Although specific embodiments of the present invention have been described, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the invention, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A reactor cleaning system, characterized by: including a plurality of scavenge pipes that are used for the circulation washing liquid of applying mechanically, the scavenge pipe includes the feed liquor pipe, returns the liquid pipe, the feed liquor pipe return the liquid pipe and set up respectively in every section empty pipe's of reactor casing both sides to with the inside intercommunication of casing.

2. The reactor cleaning system of claim 1, wherein: the other end of the liquid inlet pipe is communicated with a cleaning liquid inlet, and the other end of the liquid return pipe is communicated with a cleaning liquid return port.

3. The reactor cleaning system of claim 1, wherein: the one end of feed liquor pipe in connecting the casing return liquid pipe all is equipped with the flow valve.

4. The reactor cleaning system of claim 2, wherein: the cleaning pipe further comprises a switching liquid inlet pipe and a switching liquid return pipe, the switching liquid inlet pipe is respectively communicated with the cleaning liquid inlet and the liquid return pipe, and the switching liquid return pipe is respectively communicated with the cleaning liquid return port and the liquid inlet pipe.

5. The reactor cleaning system of claim 4, wherein: the liquid inlet pipe and the liquid return pipe are switched to be provided with flow valves.

6. The reactor cleaning system of claim 4, wherein: the switch feed liquor pipe with return the intercommunication department of liquid pipe, switch back the liquid pipe with be equipped with the flow valve on the pipeline between the intercommunication department of liquid mouth is returned to the washing liquid, switch back the liquid pipe with the intercommunication department of feed liquor pipe, switch the feed liquor pipe with be equipped with the flow valve on the pipeline between the intercommunication department of washing liquid inlet.