CN211570512U - Stripping gas recycling facility of condensation system of butadiene rubber device - Google Patents

Stripping gas recycling facility of condensation system of butadiene rubber device Download PDF

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Publication number
CN211570512U
CN211570512U CN202020124870.0U CN202020124870U CN211570512U CN 211570512 U CN211570512 U CN 211570512U CN 202020124870 U CN202020124870 U CN 202020124870U CN 211570512 U CN211570512 U CN 211570512U
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coacervation
top absorber
coagulation
stripping gas
cauldron
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CN202020124870.0U
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孙立军
程龙武
孙玮
关国民
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Daqing Petrochemical Engineering Co Ltd
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Daqing Petrochemical Engineering Co Ltd
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Abstract

A stripping gas recycling facility of a condensation system of a butadiene rubber device comprises a first condensation kettle, a second condensation kettle, a third condensation kettle, a second low-pressure steam pipeline, a third low-pressure steam pipeline, a second condensation kettle top absorber, a third condensation kettle top absorber, a second condensation kettle top absorber outlet gas pipeline and a third condensation kettle top absorber outlet gas pipeline, the second condensation kettle is connected with a second condensation kettle top absorber, the third condensation kettle is connected with a third condensation kettle top absorber, a second low-pressure steam pipeline is connected with the second condensation kettle top absorber, the third low-pressure steam pipeline is connected with the third condensation kettle top absorber, the second condensation kettle top absorber is connected with the first condensation kettle through a second condensation kettle top absorber outlet gas pipeline, and the third condensation kettle top absorber is connected with the first condensation kettle through a third condensation kettle top absorber outlet gas pipeline. The method realizes the reutilization of the waste heat of the stripping gas, reduces the energy consumption and saves the cost.

Description

Stripping gas recycling facility of condensation system of butadiene rubber device
Technical Field
The utility model relates to a butadiene rubber device coacervation system especially relates to a butadiene rubber device coacervation system stripping gas retrieval and utilization facility.
Background
A large amount of stripping gas is discharged from a condensation system of the butadiene rubber device, the stripping gas is condensed by adopting a cooling method in the production process, and water separated after the stripping gas is condensed is discharged to a sewage pool as wastewater. Therefore, a large amount of energy is wasted.
SUMMERY OF THE UTILITY MODEL
To the extravagant problem of butadiene rubber device condensation system steam stripping gas that exists among the above-mentioned prior art, the utility model aims to provide a butadiene rubber device condensation system steam stripping gas retrieval and utilization facility can utilize again in the butadiene rubber device condensation system second condensation cauldron and third condensation cauldron's steam stripping gas as the heat source of first condensation cauldron and the moisturizing of condensation system.
In order to realize the purpose of the utility model, the utility model discloses a technical scheme as follows:
a stripping gas recycling facility of a condensation system of a butadiene rubber device comprises a first condensation kettle, a second condensation kettle, a third condensation kettle, a second low-pressure steam pipeline, a third low-pressure steam pipeline, a second condensation kettle top absorber, a third condensation kettle top absorber, a second condensation kettle top absorber outlet gas pipeline and a third condensation kettle top absorber outlet gas pipeline, the second condensation kettle is connected with a second condensation kettle top absorber, the third condensation kettle is connected with a third condensation kettle top absorber, a second low-pressure steam pipeline is connected with the second condensation kettle top absorber, the third low-pressure steam pipeline is connected with the third condensation kettle top absorber, the second condensation kettle top absorber is connected with the first condensation kettle through a second condensation kettle top absorber outlet gas pipeline, and the third condensation kettle top absorber is connected with the first condensation kettle through a third condensation kettle top absorber outlet gas pipeline.
And further, the second coagulation kettle top stripping gas enters a second coagulation kettle top absorber through a second coagulation kettle outlet stripping gas pipeline, and a filter is arranged on a second coagulation kettle outlet stripping gas pipeline.
Further, the low-pressure steam introduced through the second low-pressure steam line serves as a power source for the second coalescer top absorber.
Further, a pressure control valve is provided on the second low pressure steam line.
Further, a check valve is arranged on an outlet gas pipeline of the second condensation kettle top absorber.
Preferably, the third coagulation reactor overhead stripping gas enters the third coagulation reactor overhead absorber through a third coagulation reactor outlet stripping gas line, and a filter is arranged on the third coagulation reactor outlet stripping gas line.
Further, the low-pressure steam introduced through the third low-pressure steam line serves as a power source for the third coalescer top absorber.
Further, a pressure control valve is provided on the third low pressure steam line.
Further, a check valve is arranged on an outlet gas pipeline of the third condensation kettle top absorber.
Further, the positions of the pipe orifices of the outlet gas line of the second coagulation kettle top absorber and the outlet gas line of the third coagulation kettle top absorber entering the first coagulation kettle are determined by hydraulic simulation according to the selection of the stirrer of the first coagulation kettle.
Adopt above-mentioned technical scheme, the beneficial effects of the utility model have:
the utility model discloses in the steam stripping gas retrieval and utilization facility of butadiene rubber device condensation system, the second that will be in the butadiene rubber device condensation system condenses the cauldron and the third generates and returns to first condensation cauldron after retrieving, as the heating steam of first condensation cauldron. The method can effectively recover the stripping gas at the top of the second coagulation reactor and the stripping gas at the top of the third coagulation reactor as the water supplement of a coagulation system, realizes the reutilization of the waste heat of the stripping gas, reduces the energy consumption and saves the cost.
Drawings
FIG. 1 is a schematic diagram of a stripping gas recycling facility of a condensation system of a butadiene rubber device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model provides a butadiene rubber device condensation system vapour stripping gas retrieval and utilization facility, as shown in fig. 1, including first condensation kettle 9, second condensation kettle 1, third condensation kettle 5, second low pressure steam pipeline 2, third low pressure steam pipeline 6, second condensation kettle top absorber 3, third condensation kettle top absorber 7, second condensation kettle top absorber export gas pipeline 4 and third condensation kettle top absorber export gas pipeline 8, wherein second condensation kettle 1 is connected with second condensation kettle top absorber 3, third condensation kettle 5 is connected with third condensation kettle top absorber 7, second low pressure steam pipeline 2 is connected with second condensation kettle top absorber 3, third low pressure steam pipeline 6 is connected with third condensation kettle top absorber 7, second condensation kettle top absorber 3 is connected first condensation kettle 9 through second condensation kettle top absorber export gas pipeline 4, third condensation kettle top absorber 7 is connected first condensation kettle 9 through third condensation kettle top absorber export gas pipeline 8 And a polymerization kettle 9. Therefore, the stripping gases generated in the second coagulation still 1 and the third coagulation still 5 are recovered and returned to the first coagulation still 9.
In second coagulation kettle 1 cauldron top stripping gas got into second coagulation kettle top absorber 3 through second coagulation kettle export stripping gas pipeline, be provided with filter (not shown) on the second coagulation kettle export stripping gas pipeline, impurity such as the foam of glue that the filter can filter smuggleing secretly in the 1 cauldron top stripping gas of second coagulation kettle effectively. The second coagulation vessel 1 overhead stripping gas is sufficiently absorbed in the second coagulation vessel overhead absorber 3.
The second low pressure steam line 2 enters the second coalescer overhead absorber 3, whereby the low pressure steam enters the second coalescer overhead absorber 3 through the second low pressure steam line 2. The second condensation kettle top absorber 3 uses the low-pressure steam introduced through the second low-pressure steam pipeline 2 as power to generate high vacuum in an absorption chamber, and the second condensation kettle 1 top stripping gas is fully absorbed. The low-pressure steam introduced via the second low-pressure steam line 2 therefore serves as a power source for the second coalescer top absorber 3. A pressure control valve (not shown) is provided on the second low-pressure steam line 2 for controlling the top pressure of the second coagulation vessel 1.
Second coagulation kettle top absorber export gas pipeline 4 is connected to first coagulation kettle 9, and the export gas of second coagulation kettle top absorber 3 returns to first coagulation kettle 9 in through second coagulation kettle top absorber export gas pipeline 4, as the heating steam of first coagulation kettle 9, makes the stripping gas waste heat that produces of second coagulation kettle 1 of butadiene rubber device coagulation system reuse, makes the waste water of coagulation system be used for the moisturizing of first coagulation kettle 9 to reduce the energy consumption, practice thrift the cost. A check valve (not shown) is provided on second coagulation vessel top absorber outlet gas line 4, and the check valve prevents the medium in first coagulation vessel 9 from flowing backward into second coagulation vessel top absorber outlet gas line 4. The location of the second coalescer top absorber outlet gas line 4 into the orifice of first coalescer 9, which needs to be determined by hydraulic simulations based on the choice of stirrer (not shown) for first coalescer 9, must facilitate the injection of the stripping gas from second coalescer 1 into the optimum break-up zone in first coalescer 9.
In third coagulation kettle 5 cauldron top stripping gas got into third coagulation kettle top absorber 7 through third coagulation kettle export stripping gas pipeline, be provided with filter (not shown) on the third coagulation kettle export stripping gas pipeline, impurity such as the foam that smugglies was smugglied secretly in third coagulation kettle 5 cauldron top stripping gas can be filtered effectively to the filter. The third coagulation vessel 5 overhead stripping gas is sufficiently absorbed in the third coagulation vessel overhead absorber 7.
The third low pressure steam line 6 enters the third coalescer overhead absorber 7, whereby the low pressure steam enters the third coalescer overhead absorber 7 through the third low pressure steam line 6. The third coagulation vessel top absorber 7 uses the low-pressure steam introduced through the third low-pressure steam line 6 as power to generate high vacuum in the absorption chamber thereof, and sufficiently absorbs the third coagulation vessel 5 top stripping gas. The low-pressure steam introduced via the third low-pressure steam line 6 therefore serves as a power source for the third coalescer top absorber 7. A pressure control valve (not shown) is provided in the third low-pressure steam line 6 for controlling the top pressure of the third coagulation vessel 5.
The outlet gas line 8 of the third coagulation kettle top absorber is connected to the first coagulation kettle 9, the outlet gas of the third coagulation kettle top absorber 7 returns to the first coagulation kettle 9 through the outlet gas line 8 of the third coagulation kettle top absorber to be used as the heating steam of the first coagulation kettle 9, the stripping gas waste heat generated by the third coagulation kettle 5 of the polybutadiene device coagulation system is reused, and the waste water of the coagulation system is used for replenishing water to the first coagulation kettle 9, so that the energy consumption is reduced, and the cost is saved. A check valve (not shown) is provided in the third coalescer top absorber outlet gas line 8 to prevent back-blow of the medium in the first coalescer 9 into the third coalescer top absorber outlet gas line 8. The location of the third coagulum top absorber outlet gas line 8 into the orifice of first coagulum tank 9, which needs to be determined by hydraulics simulation based on the choice of stirrer (not shown) of first coagulum tank 9, must facilitate the injection of the stripping gas of third coagulum tank 5 into the optimum break-up zone within first coagulum tank 9.
The utility model discloses a butadiene rubber device condensation system steam stripping retrieval and utilization facility can retrieve second condensation cauldron kettle top steam stripping gas and third condensation cauldron kettle top steam stripping gas as the moisturizing of condensation system effectively to realized the reuse of steam stripping gas waste heat, reduced the energy consumption, practiced thrift the cost.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. The utility model provides a butadiene rubber device coacervation system vapour stripping gas retrieval and utilization facility which characterized in that, includes first coacervation cauldron, second coacervation cauldron, third coacervation cauldron, second low pressure steam line, third low pressure steam line, second coacervation cauldron top absorber, third coacervation cauldron top absorber, second coacervation cauldron top absorber export gas line and third coacervation cauldron top absorber export gas line, wherein the second coacervation cauldron with second coacervation cauldron top absorber is connected, the third coacervation cauldron with third coacervation cauldron top absorber is connected, the second low pressure steam line with second coacervation cauldron top absorber is connected, the third low pressure steam line with third coacervation cauldron top absorber is connected, the second coacervation cauldron top absorber passes through second coacervation cauldron top absorber export gas line connection the first cauldron, third coacervation cauldron top absorber passes through third coacervation cauldron top absorber export gas line connection the second coacervation cauldron top absorber export gas line connection the third coacervation cauldron A condensation kettle.
2. The butadiene rubber unit coagulation system stripping gas reuse facility according to claim 1, wherein said second coagulation kettle overhead stripping gas enters said second coagulation kettle overhead absorber through a second coagulation kettle outlet stripping gas line, said second coagulation kettle outlet stripping gas line being provided with a filter.
3. The cis-butadiene rubber unit condensation system stripping gas recovery facility of claim 2, wherein low pressure steam introduced through the second low pressure steam line serves as a power source for the second coagulation kettle top absorber.
4. The stripping gas recycling facility for a condensation system of a butadiene rubber unit according to claim 3, characterized in that a pressure control valve is arranged on the second low pressure steam line.
5. The butadiene rubber unit condensation system stripping gas recovery facility of claim 1, wherein a check valve is disposed on the second coagulation kettle top absorber outlet gas line.
6. The butadiene rubber unit coagulation system stripping gas reuse facility according to claim 1, wherein said third coagulation kettle overhead stripping gas enters said third coagulation kettle overhead absorber through a third coagulation kettle outlet stripping gas line, said third coagulation kettle outlet stripping gas line being provided with a filter.
7. The cis-butadiene rubber unit coagulation system stripping gas recovery facility of claim 6, wherein low pressure steam introduced through the third low pressure steam line serves as a power source for the third coagulation kettle overhead absorber.
8. The cis-butadiene rubber unit coagulation system stripping gas recovery facility of claim 7, wherein a pressure control valve is provided on the third low pressure steam line.
9. The butadiene rubber unit condensation system stripping gas recovery facility of claim 8, wherein a check valve is disposed on the third coagulation kettle top absorber outlet gas line.
10. The butadiene rubber unit condensation system stripping gas recovery facility of claim 1, wherein the location of the orifice of the second and third coagulum top absorber outlet gas lines into the first coagulum kettle is determined by hydraulic simulation based on the selection of the type of agitator of the first coagulum kettle.
CN202020124870.0U 2020-01-19 2020-01-19 Stripping gas recycling facility of condensation system of butadiene rubber device Active CN211570512U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115010829A (en) * 2022-06-21 2022-09-06 宁波新溶聚企业管理合伙企业(有限合伙) Device and method for continuously producing solution polymerized styrene butadiene rubber and low cis-polybutadiene rubber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115010829A (en) * 2022-06-21 2022-09-06 宁波新溶聚企业管理合伙企业(有限合伙) Device and method for continuously producing solution polymerized styrene butadiene rubber and low cis-polybutadiene rubber
CN115010829B (en) * 2022-06-21 2023-08-22 宁波新溶聚企业管理合伙企业(有限合伙) Device and method for continuously producing solution polymerized styrene-butadiene rubber and low cis-butadiene rubber

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