CN214634619U - Moisturizing solvent filtering system - Google Patents
Moisturizing solvent filtering system Download PDFInfo
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- CN214634619U CN214634619U CN202023218191.9U CN202023218191U CN214634619U CN 214634619 U CN214634619 U CN 214634619U CN 202023218191 U CN202023218191 U CN 202023218191U CN 214634619 U CN214634619 U CN 214634619U
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Abstract
The utility model belongs to the chemical industry field, concretely relates to mend wet solvent filtration system, including mending wet solvent feed supplement pipeline, mend wet solvent feed supplement pipeline and communicate to solvent circulation system, mend wet solvent feed supplement pipeline and set up the crossover sub pipeline, crossover sub pipeline intercommunication solvent regeneration tower feed line, the exit linkage of solvent regeneration tower to solvent circulation system. The utility model discloses an it is continuous with solvent regeneration tower flow to mend wet solvent flow outward that newly-increased overline will, will mend the material in the wet solvent outward and filter, reaches the clear purpose of mend solvent outward.
Description
Technical Field
The utility model belongs to the chemical industry field, concretely relates to mend wet solvent filtration system.
Background
The wet solvent tank has more colloidal substances due to the fact that materials in the underground tank are fed into the wet solvent tank for a long time, the color of the solvent is dirty and is soy sauce, the solvent in the system is subjected to long-term operation slag removal, the color of the solvent is obviously superior to that in the wet solvent tank, the color of the solvent is good and is salad oil, when the system is subjected to mechanical pump maintenance and slag removal by a regeneration tower, the stock of the solvent in the system can be gradually reduced, the material of the wet solvent tank needs to be supplemented regularly to supplement the solvent stock in the system, the dirty external solvent supplement can affect the performance of the solvent in the system, the aromatic mixing yield is reduced, and the solvent degradation is accelerated.
Disclosure of Invention
According to the defect that above-mentioned prior art exists, the utility model aims at providing a mend wet solvent filtration system, solve outer mend wet solvent jar interior material dirty affairs, when the system mends wet solvent, can filter the wet solvent of benefit with extracting, filter the back at access device, reach the purpose of guaranteeing that the solvent is clean, improvement solvent performance.
In order to achieve the above object, the utility model adopts the following technical scheme: the system comprises a moisture supplementing solvent feed line, wherein the moisture supplementing solvent feed line is communicated to a solvent circulating system, the moisture supplementing solvent feed line is provided with a crossover line, the crossover line is communicated with a feeding line of a solvent regeneration tower, and an outlet of the solvent regeneration tower is connected to the solvent circulating system.
Further, an overline gate valve is arranged on the overline pipeline.
Further, the outlet of the solvent regeneration tower sends the cleaning solvent to a recovery tower, and then the cleaning solvent is sent to a solvent circulating system through the recovery tower.
Further, an extraction and solvent supplement feeding battery pack is arranged at the upstream of the moisture supplement solvent supplement pipeline.
Furthermore, the crossing pipeline is connected with a moisture-supplementing solvent feed-in pipeline through a tee joint, a dechlorinated solvent root valve is arranged at the upstream of the tee joint connected to the moisture-supplementing solvent feed-in pipeline, and a moisture-supplementing solvent inlet device gate valve is arranged at the downstream of the tee joint connected to the moisture-supplementing solvent feed-in pipeline.
Furthermore, the moisturizing solvent feeding pipeline is connected to the solvent circulating system through a feeding main pipe, and the feeding main pipe is connected with a monoethanolamine feeding pipeline and a defoamer feeding pipeline.
Furthermore, a feeding adjusting valve is arranged on the feeding pipeline of the solvent regeneration tower, a foam breaking net is arranged in the solvent regeneration tower, and the feeding pipeline of the solvent regeneration tower is connected with a feeding pipeline of a material at the bottom of the extraction and recovery tower.
Furthermore, the moisturizing solvent filtration system also comprises an underground solvent tank, wherein a desolventizing pipeline of the underground solvent tank is connected with the wet solvent tank through a first branch pipeline, and the desolventizing pipeline of the underground solvent tank is connected with a feeding pipeline of the solvent regeneration tower through a second branch pipeline.
Further, the solvent in the wet solvent tank enters the solvent circulating system through the solvent pump and the moisturizing solvent feed line.
Furthermore, a first feeding valve, a feeding one-way valve and a second feeding valve are sequentially arranged on the second branch pipeline along the material flowing direction.
Further, the crossover line is connected to the solvent regenerator feed line by a second branch line, and the crossover line is connected between the first feed valve and the feed check valve.
Further, a non-aromatic shutdown desolvation line and an aromatic mixing shutdown desolvation line are connected to the first branch pipeline.
Further, a third feeding valve and a fourth feeding valve are arranged on the first branch pipeline, a device shutdown desolvation line is connected to a second branch pipeline between the third feeding valve and the fourth feeding valve through a desolvation cooler, and the device shutdown desolvation line is communicated to upstream pipelines of the third feeding valve and the fourth feeding valve through connecting pipelines.
The utility model has the advantages that: the process of externally supplementing the wet solvent is connected with the process of the solvent regeneration tower through a newly added span wire, and materials in the externally supplementing wet solvent are filtered, so that the aim of cleaning the externally supplementing wet solvent is fulfilled.
Drawings
FIG. 1 is a process flow diagram of a moisturizing solvent filtration system;
in the figure: 1. a moisturizing solvent feeding pipeline, 2, a feeding main pipe, 3, a crossover pipeline, 4, a feeding pipeline of a solvent regeneration tower, 5, a crossover gate valve, 6, a solvent regeneration tower, 7, an extraction and solvent supplementation feeding boundary area valve bank, 8, a dechlorinated solvent root valve, 9, a moisturizing solvent feeding device gate valve, 10, a supplementing monoethanolamine pipeline, 11, a supplementing defoaming agent pipeline, 12, a feeding adjusting valve, 13, a defoaming net, 14, an extraction and recovery tower bottom material feeding pipeline, 15, an underground solvent tank desolventizing agent pipeline, 16, a first branch pipeline, 17, a second branch pipeline, 18, a first feeding valve, 19, a feeding check valve, 20, a second feeding valve, 21, a non-aromatic shutdown solvent removing line, 22, an aromatic mixing shutdown solvent removing line, 23, a third shutdown feeding valve, 24, a fourth feeding valve, 25 and a device solvent removing line, 26. The system comprises a solvent removing cooler, 27, a connecting pipeline, 28, an underground tank delivery regeneration tower return tank valve, 29, a solvent pump, 30, a wet solvent tank, 31, an extraction tower, 32, a recovery tower, 33, a solvent circulating system feeding pipeline, 34, a feeding heat exchanger, 35, an extraction tower bottom pump, 36, a rich solvent circulating flow path, 37, a recovery tower bottom pump, 38, a reboiler, A and a solvent circulating system.
Detailed Description
In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.
Referring to the attached fig. 1, a moisturizing solvent filtration system comprises a moisturizing solvent feed line 1, the moisturizing solvent feed line is communicated to a solvent circulation system, a crossover line 3 is arranged on the moisturizing solvent feed line, the crossover line 3 is communicated with a solvent regeneration tower feed line 4, and an outlet of a solvent regeneration tower 6 is connected to the solvent circulation system.
Further, an overline gate valve 5 is provided on the overline 3.
Further, the outlet of the solvent regeneration tower 6 sends the cleaning solvent to a recovery tower, and then the cleaning solvent is sent to a solvent circulation system through the recovery tower.
Further, an extraction and solvent supplement feeding battery pack 7 is arranged at the upstream of the moisture supplement solvent supplement pipeline 1.
Furthermore, the crossover pipeline 3 is connected with a moisture-supplementing solvent feed pipeline 1 through a tee joint, a dechlorinated solvent root valve 9 is arranged at the upstream of the tee joint connected to the moisture-supplementing solvent feed pipeline 1, and a moisture-supplementing solvent feeding device gate valve 10 is arranged at the downstream of the tee joint connected to the moisture-supplementing solvent feed pipeline.
Based on the technical scheme, a dechlorinated solvent root valve 9 is a one-way valve, a tee joint is added behind the one-way valve on a moisture supplementing solvent feed line, the original moisture supplementing solvent flow can still be normally used, the tee joint line is connected with a newly-added crossover line 3, the crossover line is connected to an underground solvent tank return solvent regeneration tower flow, the newly-added crossover line is isolated by using a crossover gate valve 5, when the solvent feed is dirty, the original feed flow is closed, the feed solvent is led to a material flow of the underground solvent tank return regeneration tower through the newly-added crossover line 3 and is sent to a solvent regeneration tower 6, macromolecular colloids in the externally-supplemented solvent are removed through stripping steam of the regeneration tower and a foam breaking net 13 in the regeneration tower, and the filtered clean solvent enters a circulating solvent system.
After the implementation, the newly added crossing pipeline 3 is utilized to regenerate the newly supplemented dirty wet solvent by using the solvent regeneration tower, macromolecular colloids carried in the wet solvent are filtered out, and the regenerated solvent enters the circulating solvent system again, so that the aim of ensuring the cleanness of the circulating solvent is fulfilled.
Further, the moisturizing solvent feed line 1 is connected to the solvent circulation system through a feed main pipe 2, and the feed main pipe 2 is connected with a monoethanolamine supplementing line 10 and a defoamer supplementing line 11.
Furthermore, a feeding regulating valve 12 is arranged on the feeding pipeline 4 of the solvent regeneration tower, a foam breaking net 13 is arranged in the solvent regeneration tower, and the feeding pipeline of the solvent regeneration tower is connected with a material feeding pipeline 14 at the bottom of the extraction and recovery tower.
Further, the solvent circulation system comprises an extraction tower 31 and a recovery tower 32, a solvent circulation system feed pipeline 33 enters the extraction tower 31 after heat exchange through a feed heat exchanger 34, an extraction tower bottom outlet enters the recovery tower 32 through an extraction tower bottom pump 35 and a rich solvent circulation flow path 36, and a recovery tower bottom outlet returns to an extraction tower feed inlet through a recovery tower bottom pump 37 and a reboiler 38 and the feed heat exchanger 34.
Furthermore, the moisturizing solvent filtration system further comprises an underground solvent tank, wherein a desolventizing pipeline 15 of the underground solvent tank is connected with the wet solvent tank 30 through a first branch pipeline 16, and the desolventizing pipeline of the underground solvent tank is connected with a feeding pipeline 4 of the solvent regeneration tower through a second branch pipeline 17.
Further, the solvent in the wet solvent tank 30 enters the solvent circulation system through the solvent pump 29 and the wet replenishment solvent feed line 1.
Further, a first feeding valve 18, a feeding check valve 19 and a second feeding valve 20 are sequentially arranged on the second branch pipeline 17 along the material flowing direction.
Further, the crossover line 3 is connected to the solvent regeneration column feed line 4 through a second branch line 17, and the crossover line 3 is connected between a first feed valve 18 and a feed check valve 19.
Further, a non-aromatic shutdown desolvation line 21 and a mixed aromatic shutdown desolvation line 22 are connected to the first branch line 16.
Further, a third feed valve 23 and a fourth feed valve 24 are provided on the first branch line 17, a plant shutdown desolvation line 25 is connected to the second branch line between the third feed valve 23 and the fourth feed valve 24 through a desolvation cooler 26, and the plant shutdown desolvation line 25 is communicated to the upstream lines of the third feed valve and the fourth feed valve through a connecting line 27.
The utility model discloses newly-increased crossover line behind moisturizing solvent battery of boundry district, newly-increased crossover line gate valve on the crossover line, crossover line is connected to and extracts the underground tank to extracting regeneration tower feed line, when moisturizing the solvent outward, close former solvent regeneration feeding flow who extracts the regeneration tower, adopt the feeding of moisturizing the solvent outward as the regeneration tower, externally mend the wet solvent and carry out the strip regeneration, effectively intercept the macromolecule colloid thing in the outer feed supplement through broken foam net, reentrant solvent circulation system after the solvent filters, reach and guarantee the clear purpose of solvent.
The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (10)
1. A moisturizing solvent filtration system, comprising: the system comprises a moisture supplementing solvent feed pipeline, wherein the moisture supplementing solvent feed pipeline is communicated to a solvent circulating system, the moisture supplementing solvent feed pipeline is provided with a crossover pipeline, the crossover pipeline is communicated with a feeding pipeline of a solvent regeneration tower, and an outlet of the solvent regeneration tower is connected to the solvent circulating system.
2. The system of claim 1, wherein: and the crossover pipeline is provided with a crossover gate valve.
3. The system of claim 1, wherein: the crossing pipeline is connected with a moisture-supplementing solvent feed-in pipeline through a tee joint, the upstream of the tee joint connected to the moisture-supplementing solvent feed-in pipeline is provided with a dechlorinated solvent root valve, and the downstream of the tee joint connected to the moisture-supplementing solvent feed-in pipeline is provided with a moisture-supplementing solvent feeding device gate valve.
4. The system of claim 1, wherein: the wet-supplementing solvent feeding pipeline is connected to the solvent circulating system through a feeding main pipe, and the material main pipe is connected with a monoethanolamine-supplementing pipeline and a defoaming agent-supplementing pipeline.
5. The system of claim 1, wherein: the feeding pipeline of the solvent regeneration tower is connected with the feeding pipeline of the material at the bottom of the extraction and recovery tower.
6. The system of claim 1, wherein: the wet solvent regeneration tower is characterized by further comprising an underground solvent tank, wherein a solvent removing pipeline of the underground solvent tank is connected with the wet solvent tank through a first branch pipeline, and the solvent removing pipeline of the underground solvent tank is connected with a feeding pipeline of the solvent regeneration tower through a second branch pipeline.
7. The system of claim 6, wherein: the solvent in the wet solvent tank enters the solvent circulating system through the solvent pump and the moisture supplementing solvent feeding pipeline.
8. The system of claim 6, wherein: and a first feeding valve, a feeding one-way valve and a second feeding valve are sequentially arranged on the second branch pipeline along the material flowing direction.
9. The system of claim 8, wherein: the crossover line is connected to the solvent regenerator feed line by a second branch line, and the crossover line is connected between the first feed valve and the feed check valve.
10. The system of claim 6, wherein: the first branch pipeline is connected with a non-aromatic shutdown desolvation line and an aromatic mixture shutdown desolvation line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218191.9U CN214634619U (en) | 2020-12-28 | 2020-12-28 | Moisturizing solvent filtering system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218191.9U CN214634619U (en) | 2020-12-28 | 2020-12-28 | Moisturizing solvent filtering system |
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| CN214634619U true CN214634619U (en) | 2021-11-09 |
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| CN202023218191.9U Active CN214634619U (en) | 2020-12-28 | 2020-12-28 | Moisturizing solvent filtering system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495049A (en) * | 2020-12-28 | 2021-03-16 | 大连福佳·大化石油化工有限公司 | Moisturizing solvent filtering system |
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- 2020-12-28 CN CN202023218191.9U patent/CN214634619U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495049A (en) * | 2020-12-28 | 2021-03-16 | 大连福佳·大化石油化工有限公司 | Moisturizing solvent filtering system |
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