CN214415626U - Methanol rectification pre-tower non-condensable gas recovery device - Google Patents
Methanol rectification pre-tower non-condensable gas recovery device Download PDFInfo
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- CN214415626U CN214415626U CN202022331100.6U CN202022331100U CN214415626U CN 214415626 U CN214415626 U CN 214415626U CN 202022331100 U CN202022331100 U CN 202022331100U CN 214415626 U CN214415626 U CN 214415626U
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Abstract
The utility model discloses a methanol rectification pre-tower non-condensable gas recovery device, which comprises a methanol rectification pre-tower, a first recovery pipeline and a second recovery pipeline; the outlet end of the methanol rectifying pre-tower is communicated with the inlet end of an adjusting valve, the outlet end of the adjusting valve is communicated with the inlet end of a first recovery pipeline through a first valve, and the outlet end of the adjusting valve is communicated with the inlet end of a second recovery pipeline through a second valve; the outlet end of the methanol rectifying pre-tower is directly communicated with the inlet end of the first recovery pipeline through a bypass valve arranged additionally. By adopting the technical scheme, the device is simple to operate, safe and reliable, can effectively recycle the methanol gas in the non-condensable gas in the pre-tower, can greatly increase the yield of the methanol, greatly improve the economic benefit, simultaneously reduce the pollution to the gas environment and play a role in protecting the atmospheric environment.
Description
Technical Field
The utility model belongs to the chemical industry system field, more specifically says, the utility model relates to a methanol rectification is tower noncondensable gas recovery unit in advance.
Background
At present, the main components of the non-condensable gas generated by a rectifying pre-tower in the production process of methanol comprise: CH3OCH3, HCOOCH3, C8H18 and CH3OH, if the components of these non-condensable gases are discharged directly to the atmosphere by on-site high-point venting, would both waste the methanol product and contaminate the atmosphere.
There is a need to develop a recycling apparatus for noncondensable gases to protect atmospheric pollution and preferably to improve the efficiency of methanol recycling.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a methanol rectification is tower noncondensable gas recovery unit in advance is provided, easy operation, safe and reliable can effectual recovery in advance the tower noncondensable gas methanol gas, the output of multiplicable methyl alcohol, promotion economic benefits by a wide margin has reduced the pollution to gas environment simultaneously, has played the effect of protecting the atmospheric environment.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: comprises a methanol rectification pre-tower, a first recovery pipeline and a second recovery pipeline; the outlet end of the methanol rectifying pre-tower is communicated with the inlet end of an adjusting valve, the outlet end of the adjusting valve is communicated with the inlet end of a first recovery pipeline through a first valve, and the outlet end of the adjusting valve is communicated with the inlet end of a second recovery pipeline through a second valve; the outlet end of the methanol rectifying pre-tower is directly communicated with the inlet end of the first recovery pipeline through a bypass valve arranged additionally.
This technical scheme provides a pair of methanol rectification is tower noncondensable gas recovery unit in advance, the exit end of methanol rectification is tower in advance through setting up first auxiliary valve with adjusting valve's entrance connection, adjusting valve's exit end through set up second auxiliary valve respectively with first valve with the entrance connection of second valve.
The utility model provides a pair of methyl alcohol rectification pre-tower noncondensable gas recovery unit, first recovery line comprises high point unloading pipeline and high point unloading recovery point, the exit end of adjusting valve passes through the inlet connection of first valve and high point unloading pipeline, the exit end of high point unloading pipeline and the inlet connection of high point unloading recovery point.
According to the technical scheme, the device for recovering the non-condensable gas in the methanol rectification pre-tower is characterized in that the inlet end of the bypass valve is connected with the outlet end of the methanol rectification pre-tower, and the outlet end of the bypass valve is directly communicated with the inlet end of the high-point emptying pipeline.
This technical scheme provides a pair of tower noncondensable gas recovery unit is in advance rectified to methyl alcohol, the second recovery pipeline comprises scrubber, rectification underground tank, demineralized water and torch system, the exit end of adjusting valve passes through the bottom entrance point connection of second valve and scrubber, and the top entrance point of scrubber is equipped with the demineralized water and lets in, and the bottom exit end of scrubber and the entrance point connection of rectification underground tank, the top exit end of scrubber and the entrance point connection of torch system.
The utility model provides a pair of methanol rectification is tower noncondensable gas recovery unit in advance, the exit end of second valve is provided with a check valve and connects, the exit end of check valve with the bottom entrance connection of scrubber.
By adopting the technical scheme, the device is simple to operate, safe and reliable, can effectively recycle the methanol gas in the non-condensable gas in the pre-tower, can greatly increase the yield of the methanol, greatly improve the economic benefit, simultaneously reduce the pollution to the gas environment and play a role in protecting the atmospheric environment.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of the structure of the device of the present invention;
labeled as: 1. a methanol rectification pre-tower; 2. a bypass valve; 3. a high point vent line; 4. a first auxiliary valve; 5. adjusting the valve; 6. a second auxiliary valve; 7. a first valve; 8. a second valve; 9. a check valve; 10. a water washer; 11. rectifying the underground tank; 12. desalting water; 13. a flare system; 14. and (5) emptying the recovery point at a high point.
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, by way of example, the shape and structure of the components, the mutual positions and connections between the components, the functions and operating principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
The methanol rectification pre-tower non-condensable gas recovery device shown in the figure 1 comprises a methanol rectification pre-tower 1, a first recovery pipeline and a second recovery pipeline; the outlet end of the methanol rectifying pre-tower 1 is communicated with the inlet end of an adjusting valve 5, the outlet end of the adjusting valve 5 is communicated with the inlet end of a first recovery pipeline by arranging a first valve 7, and the outlet end of the adjusting valve 5 is communicated with the inlet end of a second recovery pipeline by arranging a second valve 8; the outlet end of the methanol rectifying pre-tower 1 is directly communicated with the inlet end of the first recovery pipeline through a bypass valve 2 which is additionally arranged.
The outlet end of the methanol rectifying pre-tower 1 is connected with the inlet end of an adjusting valve 5 by arranging a first auxiliary valve 4, and the outlet end of the adjusting valve 5 is respectively connected with the inlet ends of a first valve 7 and a second valve 8 by arranging a second auxiliary valve 6.
The first recovery pipeline consists of a high point emptying pipeline 3 and a high point emptying recovery point 14, the outlet end of the regulating valve 5 is connected with the inlet end of the high point emptying pipeline 3 through a first valve 7, and the outlet end of the high point emptying pipeline 3 is connected with the inlet end of the high point emptying recovery point 14.
The inlet end of the bypass valve 2 is connected with the outlet end of the methanol rectification pre-tower 1, and the outlet end of the bypass valve 2 is directly communicated with the inlet end of the high-point emptying pipeline 3. The bypass valve 2 plays a role of temporary replacement, and if a pipeline where the regulating valve is located is in failure, the pipeline can be emptied and recycled through the high point of the bypass valve 2.
The second recovery pipeline comprises scrubber 10, rectification underground tank 11, desalted water 12 and torch system 13, and the exit end of adjusting valve 5 is connected with the bottom entrance point of scrubber 10 through second valve 8, and the top entrance point of scrubber 10 is equipped with desalted water 12 and lets in, and the bottom exit end of scrubber 10 and the entrance point of rectification underground tank 11 are connected, and the top exit end of scrubber 10 and the entrance point of torch system 13 are connected.
The outlet end of the second valve 8 is provided with a check valve 9 for connection, and the outlet end of the check valve 9 is connected with the bottom inlet end of the water scrubber 10.
A first valve 7, a second valve 8, a check valve 9, a water scrubber 10, a flare system 13 pipeline, a desalted water 12 pipeline and a rectification underground tank 11 pipeline are added after a high point vent pipeline 3 of a methanol rectification pre-tower 1 adjusts a valve 5; during normal production, the second valve 8 is opened, the first valve 7 is closed, the non-condensable gas generated by the methanol rectifying pre-tower 1 is discharged from a high point on site to the rectifying underground tank 11 pipeline of the second recovery pipeline for recovery, enters from the bottom inlet end of the water scrubber 10 to be contacted with desalted water 12 introduced from the top inlet end, the methanol in the non-condensable gas in the methanol rectifying pre-tower 1 is recovered and discharged to the rectifying underground tank 11 pipeline, and the non-condensable gas out of the water scrubber 10 is discharged to the flare system 13 pipeline.
By adopting the technical scheme, the device is simple to operate, safe and reliable, can effectively recycle the methanol gas in the non-condensable gas in the pre-tower, can greatly increase the yield of the methanol, greatly improve the economic benefit, simultaneously reduce the pollution to the gas environment and play a role in protecting the atmospheric environment.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (6)
1. The utility model provides a methanol rectification is tower noncondensable gas recovery unit in advance which characterized in that: comprises a methanol rectification pre-tower, a first recovery pipeline and a second recovery pipeline; the outlet end of the methanol rectifying pre-tower is communicated with the inlet end of an adjusting valve, the outlet end of the adjusting valve is communicated with the inlet end of a first recovery pipeline through a first valve, and the outlet end of the adjusting valve is communicated with the inlet end of a second recovery pipeline through a second valve; the outlet end of the methanol rectifying pre-tower is directly communicated with the inlet end of the first recovery pipeline through a bypass valve arranged additionally.
2. The methanol rectification pre-tower non-condensable gas recovery device according to claim 1, wherein: the outlet end of the methanol rectifying pre-tower is connected with the inlet end of the regulating valve by arranging a first auxiliary valve, and the outlet end of the regulating valve is respectively connected with the inlet ends of the first valve and the second valve by arranging a second auxiliary valve.
3. The methanol rectification pre-tower non-condensable gas recovery device according to claim 1, wherein: the first recovery pipeline is composed of a high-point emptying pipeline and a high-point emptying recovery point, the outlet end of the regulating valve is connected with the inlet end of the high-point emptying pipeline through the first valve, and the outlet end of the high-point emptying pipeline is connected with the inlet end of the high-point emptying recovery point.
4. The methanol rectification pre-tower non-condensable gas recovery device according to claim 3, wherein: the inlet end of the bypass valve is connected with the outlet end of the methanol rectification pre-tower, and the outlet end of the bypass valve is directly communicated with the inlet end of the high-point emptying pipeline.
5. The methanol rectification pre-tower non-condensable gas recovery device according to claim 1, wherein: the second recovery pipeline consists of a water scrubber, a rectification underground tank, desalted water and a torch system, the outlet end of the regulating valve is connected with the bottom inlet end of the water scrubber through the second valve, desalted water is introduced into the top inlet end of the water scrubber, the bottom outlet end of the water scrubber is connected with the inlet end of the rectification underground tank, and the top outlet end of the water scrubber is connected with the inlet end of the torch system.
6. The methanol rectification pre-tower non-condensable gas recovery device according to claim 5, wherein: the outlet end of the second valve is provided with a check valve for connection, and the outlet end of the check valve is connected with the inlet end at the bottom of the water washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022331100.6U CN214415626U (en) | 2020-10-20 | 2020-10-20 | Methanol rectification pre-tower non-condensable gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022331100.6U CN214415626U (en) | 2020-10-20 | 2020-10-20 | Methanol rectification pre-tower non-condensable gas recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN214415626U true CN214415626U (en) | 2021-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022331100.6U Active CN214415626U (en) | 2020-10-20 | 2020-10-20 | Methanol rectification pre-tower non-condensable gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214415626U (en) |
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2020
- 2020-10-20 CN CN202022331100.6U patent/CN214415626U/en active Active
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