CN208893657U - A kind of crude naphthalene production washing oil circulatory system - Google Patents
A kind of crude naphthalene production washing oil circulatory system Download PDFInfo
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- CN208893657U CN208893657U CN201821545156.8U CN201821545156U CN208893657U CN 208893657 U CN208893657 U CN 208893657U CN 201821545156 U CN201821545156 U CN 201821545156U CN 208893657 U CN208893657 U CN 208893657U
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- washing oil
- oil discharge
- discharge pipe
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Abstract
The utility model relates to coal tar deep processing production technical fields, are related to a kind of crude naphthalene production washing oil circulatory system.It is characterized in that the system includes sequentially connected rectifying column (2), washing oil discharge pipe one (3), washing oil discharge pipe two (4), washing oil circulating pump (5), washing oil discharge pipe three (6), pipe type heat transfer furnace (7), circulating washing oil feed pipe (8), further includes gas scavenging conduit (9), shut-off valve one (10), shut-off valve two (11) and shut-off valve three (12).By the washing oil discharge pipe that the washing oil discharge pipe branch compared with Large Diameter Pipeline is become to 4 small diameter tubes, gas purging pipeline is added on the washing oil discharge pipe of small diameter tube simultaneously, when device driving and parking, because its washing oil discharge line diameter reduces and the material of crystallization or remnants in the steam and nitrogen purge pipe of larger pressure can be used, avoid material remaining, on the basis of guaranteeing that device runs and is easy to operate, driving and down time are substantially reduced, reduces production cost.
Description
Technical field
The utility model relates to coal tar deep processing production technical fields, are related to a kind of crude naphthalene production washing oil cyclic system
System.
Background technique
In the production process of naphthalene, in order to sufficiently extract the naphthalene in washing oil, cyclic process can be carried out to washing oil sometimes.It will
By the more containing heavy component of processing separation but still there is the washing oil of a small amount of naphthalene composition to be sent into tower from tower bottom and process again, makes naphthalene
It is separated from washing oil, cycle-index is more, then the content of naphthalene is fewer in washing oil.
201692680 U of Chinese patent CN is disclosed and a kind of can thoroughly be cleaned the heavy component on the filler in tower
Industrial naphthalene tower, but the outlet end of the washing oil efferent duct of its device is located at the middle part of industrial naphthalene tower, is only capable of middle and upper part in cleaning tower and fills out
The naphthalene accumulated on material cleans not thorough enough.Washing oil efferent duct is single tube in the patent simultaneously.For washing in actual industrial production
Oily efferent duct generally selects the large-diameter pipelines such as DN350, pipeline the circulation path path length, during device shutting down, the content of naphthalene compared with
Height, naphthalene are easier to Crystallization Plugging pipeline, and pipeline is not easy purging completely, need operative employee using high-temperature steam on the frame of high-altitude
Pipeline carries out external heating, increases production cost, there is very big security risk.
Utility model content
Utility model aims to solve in washing oil discharge pipe because naphthalene crystal be precipitated or remnants feed blocking pipe
The problem of road, provides a kind of easy to operate, highly-safe crude naphthalene production washing oil circulatory system.
The above technical problem can be achieved through the following technical solutions:
A kind of crude naphthalene production washing oil circulatory system: including sequentially connected rectifying column, washing oil discharge pipe one, washing oil discharge
Pipe two, washing oil circulating pump, washing oil discharge pipe three, pipe type heat transfer furnace, circulating washing oil feed pipe further include gas scavenging conduit, cut-off
Valve one, shut-off valve two and shut-off valve three, it is characterised in that the washing oil discharge pipe one is connect with rectifier bottoms；
The washing oil discharge pipe one branches into 4 washing oil discharge pipes two, and every washing oil discharge pipe two is equipped with shut-off valve one
With washing oil circulating pump；
4 washing oil discharge pipes two of the washing oil circulating-pump outlet converge to after a pipeline with washing oil discharge pipe three-phase
Even, washing oil discharge pipe three is connect with pipe type heat transfer furnace；
Gas scavenging conduit, 4 gas are equipped between shut-off valve one and washing oil circulating pump on the every washing oil discharge pipe two
Body scavenging conduit converges to the pipeline with two entrances, and two entrances can be passed through nitrogen or steam.
Further, the pipeline of the washing oil discharge pipe one, washing oil discharge pipe three using DN350, length 1.2m, washing oil
Discharge pipe two uses the pipeline of DN150.
Further, the gas scavenging conduit is equipped with shut-off valve two and shut-off valve three, and gas scavenging conduit is using DN50's
Pipeline.
The utility model is using principle and the utility model has the advantages that when the utility model is used, by the way that the washing oil of DN350 to be discharged
Pipe is decomposed into the pipeline of 4 DN150, while purging pipeline in the gas that washing oil discharge pipe adds DN50, when device driving and parking,
Because its pipe diameter reduces and can be used the material of crystallization or remnants in the steam and nitrogen purge pipe of larger pressure, keep away
Exempt from material remaining.Operative employee's high altitude operation and scald are avoided, on the basis of guaranteeing that device runs and is easy to operate, is contracted significantly
The short driving and parking time of device reduces production cost.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the utility model.
In figure: 1, new washing oil charge pipe；2, rectifying column；3, washing oil discharge pipe one；4, washing oil discharge pipe two；5, washing oil recycles
Pump；6, washing oil discharge pipe three；7, pipe type heat transfer furnace；8, circulating washing oil feed pipe；9, gas scavenging conduit；10, shut-off valve one；11,
Shut-off valve two；12, shut-off valve three.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.
As shown in Figure 1, the utility model discloses a kind of crude naphthalenes to produce the washing oil circulatory system, including sequentially connected essence
Evaporate tower 2, washing oil discharge pipe 1, washing oil discharge pipe 24, washing oil circulating pump 5, washing oil discharge pipe 36, pipe type heat transfer furnace 7, circulation
Washing oil feed pipe 8 further includes gas scavenging conduit 9, shut-off valve 1, shut-off valve 2 11, shut-off valve 3 12 and new washing oil feed pipe
1, washing oil discharge pipe 1 is connect with 2 bottom of rectifying column, using the pipeline of DN350, length 1.2m.
Washing oil discharge pipe 1 branches into 4 washing oil discharge pipes 24, and every washing oil discharge pipe 24 is equipped with shut-off valve 1
With washing oil circulating pump 5, washing oil discharge pipe 24 uses the pipeline of DN150.
4 washing oil discharge pipes 24 of 4 washing oil circulating pumps 5 outlet converge to after a pipeline with 36 phase of washing oil discharge pipe
Even, washing oil discharge pipe 36 is connect with pipe type heat transfer furnace 7, pipeline of the washing oil discharge pipe 36 using DN350, length 1.2m.
It is purged preferably, being equipped with gas between shut-off valve 1 and washing oil circulating pump 5 on every washing oil discharge pipe 24
9,4 gas scavenging conduits 9 of pipe converge to the pipeline with two entrances, and two entrances can be connect with steam or nitrogen,
Gas scavenging conduit 9 is equipped with shut-off valve 2 11 and shut-off valve 3 12, can be clear using the gaseous mixture purging of nitrogen, steam or both
Clean washing oil discharge pipe 1, washing oil discharge pipe 24, washing oil discharge pipe 36.Gas scavenging conduit 9 uses the pipeline of DN50.
Washing oil is sent into tubular heater 7 through washing oil circulating pump 5 after being discharged from 2 bottom of rectifying column and is heated, and is sent into after heating
2 tower top of rectifying column is recycled, and the service efficiency of washing oil is improved.New washing oil feed inlet 1 is added at the top of rectifying column 2, to supplement
New washing oil raw material.
Temperature is relatively high when washing oil comes out from 2 bottom of rectifying column, and the naphthalene in washing oil is not easy crystallization and is precipitated, and subsequent decomposition is
Small diameter pipeline and add gas scavenging conduit 9 can be to avoid washing oil in longer pipeline or under bad weather, naphthalene exists
Crystallization, which is precipitated, under cryogenic conditions is not easy the problem of purging and blocking pipeline.Simultaneously can with the nitrogen of elevated pressures, steam or
The gaseous mixture of the two purges cleaning device, and the driving time of the driving and parking time of shortening device, device can be by the 56h before being transformed
It is shorten to 21h, has significantly saved production cost, improves the safe and effective service ability of device.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in
Change or replacement, should be covered within the scope of the utility model.
Claims (3)
1. a kind of crude naphthalene produces the washing oil circulatory system, including sequentially connected rectifying column (2), washing oil discharge pipe one (3), washing oil
Discharge pipe two (4), washing oil circulating pump (5), washing oil discharge pipe three (6), pipe type heat transfer furnace (7), circulating washing oil feed pipe (8), also
Including gas scavenging conduit (9), shut-off valve one (10), shut-off valve two (11) and shut-off valve three (12), it is characterised in that the washing oil
Discharge pipe one (3) is connect with rectifying column (2) bottom；
The washing oil discharge pipe one (3) branches into 4 washing oil discharge pipes two (4), and every washing oil discharge pipe two (4) is equipped with cut-off
Valve one (10) and washing oil circulating pump (5)；
4 washing oil discharge pipes two (4) of the washing oil circulating pump (5) outlet converge to after a pipeline with washing oil discharge pipe three
(6) it is connected, washing oil discharge pipe three (6) is connect with pipe type heat transfer furnace (7)；
Gas scavenging conduit is equipped between shut-off valve one (10) on the every washing oil discharge pipe two (4) and washing oil circulating pump (5)
(9), 4 gas scavenging conduits (9) converge to the pipeline with two entrances, and two entrances can be passed through nitrogen or steam.
2. a kind of crude naphthalene according to claim 1 produces the washing oil circulatory system, it is characterised in that washing oil discharge pipe one
(3), washing oil discharge pipe three (6) uses the pipeline of DN350, length 1.2m, and washing oil discharge pipe two (4) uses the pipeline of DN150.
3. a kind of crude naphthalene according to claim 1 produces the washing oil circulatory system, it is characterised in that the gas scavenging conduit
(9) it is equipped with shut-off valve two (11) and shut-off valve three (12), gas scavenging conduit (9) uses the pipeline of DN50.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545156.8U CN208893657U (en) | 2018-09-21 | 2018-09-21 | A kind of crude naphthalene production washing oil circulatory system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821545156.8U CN208893657U (en) | 2018-09-21 | 2018-09-21 | A kind of crude naphthalene production washing oil circulatory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208893657U true CN208893657U (en) | 2019-05-24 |
Family
ID=66573117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821545156.8U Expired - Fee Related CN208893657U (en) | 2018-09-21 | 2018-09-21 | A kind of crude naphthalene production washing oil circulatory system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208893657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111334325A (en) * | 2020-03-26 | 2020-06-26 | 中国平煤神马能源化工集团有限责任公司 | Method for transforming industrial naphthalene system into wash oil purification system |
| CN112370810A (en) * | 2020-09-30 | 2021-02-19 | 南通新邦化工科技有限公司 | Method and device for recycling easily oxidized and easily solidified chemical materials |
-
2018
- 2018-09-21 CN CN201821545156.8U patent/CN208893657U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111334325A (en) * | 2020-03-26 | 2020-06-26 | 中国平煤神马能源化工集团有限责任公司 | Method for transforming industrial naphthalene system into wash oil purification system |
| CN111334325B (en) * | 2020-03-26 | 2021-12-28 | 中国平煤神马能源化工集团有限责任公司 | Method for transforming industrial naphthalene system into wash oil purification system |
| CN112370810A (en) * | 2020-09-30 | 2021-02-19 | 南通新邦化工科技有限公司 | Method and device for recycling easily oxidized and easily solidified chemical materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190524 Termination date: 20190921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |