CN102345578B - Method and device used for preventing cavitation of chilling water pump in process of preparing propylene from coal-based methanol - Google Patents
Method and device used for preventing cavitation of chilling water pump in process of preparing propylene from coal-based methanol Download PDFInfo
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- CN102345578B CN102345578B CN201110183620.XA CN201110183620A CN102345578B CN 102345578 B CN102345578 B CN 102345578B CN 201110183620 A CN201110183620 A CN 201110183620A CN 102345578 B CN102345578 B CN 102345578B
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- quenching column
- down comer
- water
- quenching
- swirl baffle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 49
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title claims abstract description 18
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 67
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 66
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 66
- 238000010791 quenching Methods 0.000 claims description 114
- 230000000171 quenching effect Effects 0.000 claims description 92
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 230000009466 transformation Effects 0.000 description 7
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000002271 resection Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention provides a method and device used for preventing cavitation of a chilling water pump in a process of preparing propylene from coal-based methanol. The method comprises the following measures that: an anti-eddy baffle is respectively arranged at the bottom process water outlet of each of a prechilling tower and a chilling tower; and the bottoms of collector downcomers arranged in the prechilling tower and the chilling tower are slightly lower than a water/ heavy hydrocarbon interface, the collector downcomers are provided with baffles used for sealing the bottom outlets, and the inner sides of the lower parts of the collector downcomers are provided with grooves. By using the method and the device provided by the invention, the problem of cavitation of the chilling pump in the process of preparing propylene from coal-based methanol can be solved, so that a chilling system can operate stably.
Description
Technical field
The present invention relates to process of preparing propylene from coal-based methanol process, more particularly, is a kind of method and device thereof that prevents Quench pump cavitation in process of preparing propylene from coal-based methanol.
Background technique
First cover is produced the coal-based propylene unit of 500,000 tons per year in the world, is the trial first of preparing propylene from methanol (MTP) process engineering industrial applications.In MTP device running, oil-water separation problem is the bottleneck of puzzlement device smooth running always.Oil-water separation relates generally to quenching column and pre-quenching column, oxide extraction tower and extraction tower.Wherein the oil-water separation problem of quenching column and pre-quenching column merits attention most.Quenching column oil-water separation is bad may cause chilled water pump intake band oil cavitation to jump car, and then causes hydrocarbon compressor inlet temperature high and jump the accident of car.
The design of Quench system process is considered not enough to needs of production, analysis for Quench system Quench pump cavitation problem, mainly contain following 2 reasons: 1) liquid medium enters convolution while taking over and forms vortex, the turbulent flow and the eddy flow that form may bring such as unfavorable factors such as pipeline vibrations, eddy current is brought bubble into, cause cavitation, reduce pump performance; 2) at the bottom of the straight-through tower of the design of down comer, cause water/heavy hydrocarbon waiting time insufficient, heavy hydrocarbon is brought into chilled water pump intake pipeline, causes pump cavitation, and then may cause the full device even parking accident that fluctuates.
In order to address the above problem, guarantee the safety and steady operation of preparing propylene by coal-based methanol device, need to adopt an effective measure and prevent the cavitation of Quench water pump in process for preparing propylene from methanol.
Summary of the invention
The object of the invention is to: a kind of method and device thereof that prevents Quench pump cavitation in process of preparing propylene from coal-based methanol is provided.
The method that prevents Quench pump cavitation in process of preparing propylene from coal-based methanol provided by the present invention, comprises following measures:
-in the process water outlet port, bottom of pre-quenching column and quenching column, anti-swirl baffle is set respectively;
-make the bottom of the trap down comer in pre-quenching column and quenching column a little less than water/heavy hydrocarbon interface, trap down comer is provided with the closure plate for closed bottom outlet, and the lower inside of trap down comer fluting.
Provided by the present invention for preventing that the device of process of preparing propylene from coal-based methanol Quench pump cavitation from comprising:
A pre-quenching column, the top of this pre-quenching column is provided with chilled water and injects the gentle state hydrocarbon of pipeline and draw pipeline, and bottom is provided with that process water is drawn pipeline and heavy hydrocarbon is drawn pipeline, and middle part is provided with gas product feeding line;
A quenching column, the top of this quenching column is provided with chilled water and injects the gentle state hydrocarbon of pipeline and draw pipeline, and bottom is provided with that process water is drawn pipeline and heavy hydrocarbon is drawn pipeline; The gaseous hydrocarbon at described pre-quenching column top is drawn pipeline and is communicated with described quenching column middle part;
Wherein, the process water exhaust port place of described pre-quenching column and quenching column bottom is respectively equipped with anti-swirl baffle; The bottom of the trap down comer in described pre-quenching column and quenching column is a little less than water/heavy hydrocarbon interface, and trap down comer is provided with the closure plate for closed bottom outlet, and trap down comer lower inside fluting.
In the present invention, while entering pre-quenching column and the adapter of quenching column bottom for fear of liquid medium, convolution forms vortex, and then avoid in the interior liquid level upper gas possibility of container suction pump, reduce pump performance, reduce turbulent flow and eddy flow and may bring such as unfavorable factors such as pipeline vibrations, the anti-swirl baffle at the process water exhaust port place of pre-quenching column and quenching column bottom is transformed.After transformation, the diameter of quenching column anti-swirl baffle and quenching column diameter ratio are 1: 4-6, the vertical height of anti-swirl baffle and quenching column diameter ratio are 1: 18-20.The diameter of pre-quenching column anti-swirl baffle is 1 with pre-quenching column diameter ratio: 3-5, the vertical height of anti-swirl baffle is 1 with pre-quenching column diameter ratio: 12-14.The anti-swirl baffle of improved quenching column and pre-quenching column is ring structure, and the inside of described ring structure is provided with two orthogonal dividing plates, and the two ends of dividing plate are fixedly connected with the inwall of described ring structure.
In the present invention, impact according to the hydrodynamic performance of down comer on the operation of column plate itself and performance, trap down comer is transformed, to improve flow pattern, select suitable down comer round, increase water/heavy hydrocarbon waiting time, increase water/heavy hydrocarbon circle position, avoid heavy hydrocarbon to be brought into chilled water pump intake pipeline, avoid chilled water pump cavitation, and then avoid causing complete unit fluctuation.
Before technological transformation, the design of trap down comer is at the bottom of straight-through tower, makes water/heavy hydrocarbon not yet fully separated, is entrained with the water of heavy hydrocarbon just by discharging at the bottom of tower.Thereby inevitably cause part heavy hydrocarbon to be brought into chilled water pump intake pipeline with water, cause pump cavitation, and then may cause the full device even parking accident that fluctuates.
In the present invention, trap down comer in described pre-quenching column and quenching column is transformed, by down comer short transverse Partial Resection, made down comer bottom a little less than water/heavy hydrocarbon circle position, for example, downcomer bottom is positioned at 0.5-4 centimetre under water/heavy hydrocarbon circle position.Down comer bottom installs closure plate additional, at the bottom of making water/heavy hydrocarbon mixture directly not arrive water side tower, avoids heavy hydrocarbon to be brought into chilled water pump intake pipeline with water.Lower inside fluting at down comer,, above closure plate, near equipment center side, open some grooves, for example, along down comer Vertical direction, arrange drain tank 4-20, preferably 8-14, water/heavy hydrocarbon is flowed out by described fluting, increase water/heavy hydrocarbon waiting time as far as possible, increase water/heavy hydrocarbon circle position, avoid heavy hydrocarbon to be brought into chilled water pump intake pipeline.The quantity that the present invention slots for down comer bottom, shape etc. there is no specific (special) requirements, can pass through common process calculative determination.
Compared with prior art, the transformation of the present invention to quenching column and pre-quenching column anti-swirl baffle and trap down comer, improves Quench system oil-water separation successful, has properly settled the problem of the finding time of Quench water pump, entrance band oil cavitation.
Anti-swirl baffle transformation, avoids liquid medium to enter convolution while taking over and forms vortex, reduce that turbulent flow and eddy flow may bring such as unfavorable factors such as pipeline vibrations.Anti-swirl baffle can stop formation eddy current to bring bubble into, avoids pump depletion to cause cavitation.The transformation of trap down comer, will increase water/heavy hydrocarbon waiting time, effectively reduce heavy hydrocarbon and be brought into chilled water pump intake pipeline, avoid Quench pump cavitation, and then may cause complete unit fluctuation.
The problem that the invention solves Quench system Quench pump cavitation in process of preparing propylene from coal-based methanol, provides tower part and technological transformation scheme, and replenishment of process flow process realizes the smooth running of Quench system.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of Quench system in process of preparing propylene from coal-based methanol;
Fig. 2 is the structural representation of quenching column;
Fig. 3 is the structural representation of pre-quenching column;
Fig. 4 is according to the structural representation of preferred embodiment of the present invention anti-swirl baffle;
Fig. 5 is according to the structural representation of preferred embodiment of the present invention trap down comer.
Embodiment
Below in conjunction with accompanying drawing, further illustrate the present invention, but the present invention is not therefore subject to any restriction.
In process of preparing propylene from coal-based methanol (MTP), pre-quenching column is that the water in MTP reactor product gas is separated with hydrocarbon compound with the Main Function of quenching column.As Figure 1-3, first the MTP reactor outlet gas product being cooled enters pre-quenching column 1, and under the effect of the process water injecting from tower top, part water and heavy hydrocarbon are condensed, and through trap down comer 7, arrives tower bottom.Water and heavy hydrocarbon, through sedimentation separation, form water/heavy hydrocarbon circle position.When the liquid level of heavy hydrocarbon exceeds bypass channel 8, heavy hydrocarbon overflows to hydrocarbon side, realizes water/heavy hydrocarbon separated.Heavy hydrocarbon is delivered to subsequent compression unit 18 through heavy hydrocarbon discharge pipe 4.The chilled water that described pre-quenching column bottom water side need be discharged, the anti-swirl baffle 5 of flowing through is discharged by chilled water transfer line 6.Gaseous hydrocarbon leaves from pre-quenching column top, through gaseous hydrocarbon transfer line 3, is sent in quenching column 2 and carries out condensation again, and water and heavy hydrocarbon are further condensed.Water and heavy hydrocarbon arrive tower bottom water side by the trap down comer 8 in quenching column, carry out the separation of water/heavy hydrocarbon, and water is separated from hydrocarbon.When the liquid level of heavy hydrocarbon exceeds bypass channel 10, heavy hydrocarbon overflows to hydrocarbon side, realizes water/heavy hydrocarbon separated.Heavy hydrocarbon is delivered to subsequent compression unit 18 through heavy hydrocarbon discharge pipe 4 '.The chilled water that described quenching column bottom water side need be discharged, the anti-swirl baffle 5 ' of flowing through is discharged by chilled water transfer line 6 '.Gaseous hydrocarbon enters into subsequent compression unit 18 from Quench top of tower pipeline 9.Compression unit is mainly further to remove water in Quench unit gaseous hydrocarbon, avoids that water removal effect is bad causes except water pressure to follow-up rectification cell, even may cause water in product to exceed standard.
Process water also enters pre-quenching column and quenching column successively unlike MTP reactor outlet gas product, but is divided into two strands, by technique water pump 11, by process water pipeline 12 and 13, squeezes into respectively pre-quenching column and quenching column top.The water-setting liquid (chilled water) of pre-quenching column and quenching column bottom is carried through Quench water pump 14 by pipeline 6 and 6 ' respectively, delivering to rectification cell separator reboiler 15 chilled water that is used as circulating uses, this chilled water is finally cooled in Quench air cooling device 16 and quenching column precooler 17, and the chilled water of most of circulation is sent in pre-quenching column and quenching column again.
After employing the present invention carries out technology and equipment reformation, the structure of anti-swirl baffle as shown in Figure 4.The diameter of quenching column anti-swirl baffle and quenching column diameter ratio are 1: 4-6, the vertical height of anti-swirl baffle and quenching column diameter ratio are 1: 18-20.The diameter of pre-quenching column anti-swirl baffle is 1 with pre-quenching column diameter ratio: 3-5, the vertical height of anti-swirl baffle is 1 with pre-quenching column diameter ratio: 12-14.The anti-swirl baffle of improved quenching column and pre-quenching column is ring structure, and the inside of described ring structure is provided with two orthogonal dividing plates 20, and the two ends of dividing plate are fixedly connected with the inwall of described ring structure.After anti-swirl baffle transformation, can stop formation eddy current to bring bubble into, avoid pump depletion to cause cavitation.
Before employing the present invention carries out technology and equipment reformation, at the bottom of the straight-through tower of design of trap down comer (as shown in dotted line in Fig. 2-3), make water/heavy hydrocarbon fully not separated, water is just by discharging at the bottom of tower, heavy hydrocarbon is brought into chilled water pump intake pipeline with water, cause pump cavitation, and then may cause the full device even parking accident that fluctuates.After employing the present invention carries out technology and equipment reformation, as shown in Figure 5, by down comer short transverse Partial Resection, make down comer bottom a little less than water/heavy hydrocarbon circle position, bottom installs closure plate 19 additional, at the bottom of making water/heavy hydrocarbon mixture directly not arrive water side tower, avoid heavy hydrocarbon to be brought into chilled water pump intake pipeline with water.Some grooves 21 are opened near equipment center side in closure plate top, and water/heavy hydrocarbon is gone out by some concentrated flows of establishing newly, increases water/heavy hydrocarbon waiting time as far as possible, increase water/heavy hydrocarbon circle position, avoid heavy hydrocarbon to be brought into chilled water pump intake pipeline.
Claims (11)
1. a method that prevents Quench pump cavitation in process of preparing propylene from coal-based methanol, is characterized in that, the method comprises following measures:
-in the process water outlet port, bottom of pre-quenching column and quenching column, anti-swirl baffle is set respectively;
-make the bottom of the trap down comer in pre-quenching column and quenching column be positioned at 0.5-4cm under water/heavy hydrocarbon interface, trap down comer is provided with the closure plate for closed bottom end outlet, and the lower inside of trap down comer fluting.
2. method according to claim 1, is characterized in that, the diameter of described quenching column anti-swirl baffle and quenching column diameter ratio are 1:4-6, and the vertical height of anti-swirl baffle and quenching column diameter ratio are 1:18-20.
3. method according to claim 2, is characterized in that, the diameter of described pre-quenching column anti-swirl baffle is 1:3-5 with pre-quenching column diameter ratio, and the vertical height of anti-swirl baffle is 1:12-14 with pre-quenching column diameter ratio.
4. method according to claim 3, it is characterized in that, the anti-swirl baffle of described quenching column and pre-quenching column is ring structure, and the inside of described ring structure is provided with two orthogonal dividing plates, and the two ends of dividing plate are fixedly connected with the inwall of described ring structure.
5. method according to claim 4, is characterized in that, individual along down comer Vertical direction fluting 4-20 above described trap down comer closure plate.
6. method according to claim 5, is characterized in that, individual along down comer Vertical direction fluting 8-14 above described trap down comer closure plate.
7. prevent a device for Quench pump cavitation in process of preparing propylene from coal-based methanol, this device comprises:
A pre-quenching column, the top of this pre-quenching column is provided with chilled water and injects the gentle state hydrocarbon of pipeline and draw pipeline, and bottom is provided with that process water is drawn pipeline and heavy hydrocarbon is drawn pipeline, and middle part is provided with gas product feeding line;
A quenching column, the top of this quenching column is provided with chilled water and injects the gentle state hydrocarbon of pipeline and draw pipeline, and bottom is provided with that process water is drawn pipeline and heavy hydrocarbon is drawn pipeline; The gaseous hydrocarbon at described pre-quenching column top is drawn pipeline and is communicated with described quenching column middle part;
It is characterized in that, the process water exhaust port place of described pre-quenching column and quenching column bottom is respectively equipped with anti-swirl baffle; The bottom of the trap down comer in described pre-quenching column and quenching column is positioned at 0.5-4cm under water/heavy hydrocarbon interface, and trap down comer is provided with the closure plate for closed bottom end outlet, and trap down comer lower inside arranges drain tank.
8. device according to claim 7, is characterized in that, the diameter of described quenching column anti-swirl baffle and quenching column diameter ratio are 1:4-6, and the vertical height of anti-swirl baffle and quenching column diameter ratio are 1:18-20; The diameter of described pre-quenching column anti-swirl baffle is 1:3-5 with pre-quenching column diameter ratio, and the vertical height of anti-swirl baffle is 1:12-14 with pre-quenching column diameter ratio.
9. device according to claim 8, it is characterized in that, the anti-swirl baffle of described quenching column and pre-quenching column is ring structure, and the inside of described ring structure is provided with two orthogonal dividing plates, and the two ends of dividing plate are fixedly connected with the inwall of described ring structure.
10. device according to claim 9, is characterized in that, above described trap down comer closure plate, along down comer Vertical direction, arranges drain tank 4-20.
11. devices according to claim 10, is characterized in that, above described trap down comer closure plate, along down comer Vertical direction, arrange drain tank 8-14.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110183620.XA CN102345578B (en) | 2011-06-30 | 2011-06-30 | Method and device used for preventing cavitation of chilling water pump in process of preparing propylene from coal-based methanol |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110183620.XA CN102345578B (en) | 2011-06-30 | 2011-06-30 | Method and device used for preventing cavitation of chilling water pump in process of preparing propylene from coal-based methanol |
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| CN102345578A CN102345578A (en) | 2012-02-08 |
| CN102345578B true CN102345578B (en) | 2014-09-03 |
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| CN103835176A (en) * | 2012-11-21 | 2014-06-04 | 上海东冠纸业有限公司 | Buffering device for stabilizing paper machine ration |
| CN112489840A (en) * | 2020-11-12 | 2021-03-12 | 中广核工程有限公司 | Tracer injection equipment for steam humidity measurement test of nuclear power plant |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2355766Y (en) * | 1999-01-21 | 1999-12-29 | 中国石油化工集团公司 | Tray of column with multiple step-down liquid pipes |
| US6459009B1 (en) * | 2000-10-19 | 2002-10-01 | Uop Llc | Two-stage quench tower for use with oxygenate conversion process |
| CN201272754Y (en) * | 2008-09-19 | 2009-07-15 | 山东华鲁恒升集团德化设计研究有限公司 | High-efficiency gas-liquid pair reactor used for acetic anhydride generating reaction process of methyl acetate and carbon monoxide liquid-phase carbonyl |
| CN101544529A (en) * | 2008-03-25 | 2009-09-30 | 中国石化集团洛阳石油化工工程公司 | Method and equipment for pre-treatment of reaction produced gas in olefin preparation technology by oxygen-containing compounds |
| CN202215452U (en) * | 2011-06-30 | 2012-05-09 | 神华集团有限责任公司 | Device for preventing chilling water pump from cavitating in coal-based methanol to propylene process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2349234T3 (en) * | 2005-01-21 | 2010-12-29 | Morten Müller Ltd., Aps | DISTRIBUTION DEVICE FOR DOWN FLOW CONTAINERS IN TWO SIMULTANEOUS PHASES AND DISTRIBUTION PROCEDURE. |
| JP5050469B2 (en) * | 2006-09-26 | 2012-10-17 | 三菱化学株式会社 | Propylene production method |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2355766Y (en) * | 1999-01-21 | 1999-12-29 | 中国石油化工集团公司 | Tray of column with multiple step-down liquid pipes |
| US6459009B1 (en) * | 2000-10-19 | 2002-10-01 | Uop Llc | Two-stage quench tower for use with oxygenate conversion process |
| CN101544529A (en) * | 2008-03-25 | 2009-09-30 | 中国石化集团洛阳石油化工工程公司 | Method and equipment for pre-treatment of reaction produced gas in olefin preparation technology by oxygen-containing compounds |
| CN201272754Y (en) * | 2008-09-19 | 2009-07-15 | 山东华鲁恒升集团德化设计研究有限公司 | High-efficiency gas-liquid pair reactor used for acetic anhydride generating reaction process of methyl acetate and carbon monoxide liquid-phase carbonyl |
| CN202215452U (en) * | 2011-06-30 | 2012-05-09 | 神华集团有限责任公司 | Device for preventing chilling water pump from cavitating in coal-based methanol to propylene process |
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