CN204138618U - A kind of Quench section enhancement of heat transfer structure of improvement - Google Patents
A kind of Quench section enhancement of heat transfer structure of improvement Download PDFInfo
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- CN204138618U CN204138618U CN201420548566.3U CN201420548566U CN204138618U CN 204138618 U CN204138618 U CN 204138618U CN 201420548566 U CN201420548566 U CN 201420548566U CN 204138618 U CN204138618 U CN 204138618U
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Abstract
The utility model discloses a kind of Quench section enhancement of heat transfer structure of improvement, it comprises feedwater induction pipe line; Drum, the import of described drum is connected with feedwater induction pipe line by steam inlet pipeline, the outlet of drum is divided into two branch roads, the outlet of the first branch road is connected with the heat transfer tube of Quench section, the heat transfer tube air outlet of Quench section is connected with drum by Quench section pipeline of giving vent to anger, the outlet of the second branch road is connected with the heat transfer tube of delivery conduit section, and the heat transfer tube air outlet of delivery conduit section is connected with drum by delivery conduit section pipeline of giving vent to anger; Two feedwaters send water arm, two feedwaters send water arm to be connected with feedwater induction pipe line water outlet by house steward, first feedwater send the water outlet of water arm to be connected with the first branch road, and second feedwater send the water outlet of water arm to be connected with the second branch road.Adopt this equipment overheat section temperature to decline 30 DEG C, vapourizing furnace load can improve about 3%.
Description
Technical field
The utility model relates to Shell Coal Gasification stove gasification system.Refer more particularly to vapourizing furnace generation synthetic gas and improve heat exchange efficiency structure later.
Background technology
SHELL dry coal powder gasification technique researches and develops successfully by Holland the seventies in last century, and be successfully applied to Cogeneration Project, the mid-90 introduces China, and had 23 cover vapourizing furnaces to settle China at present, the introduction of this technology has extremely far-reaching influence to China's Chemical Industry.This vapourizing furnace be with coal dust and oxygen for raw material, be mainly used to produce chemical industry material synthesis gas and industrial fuel gas, have that single stove throughput is large, gasification efficiency is high, the remarkable advantage such as safety and environmental protection, in the field of business have significantly unexpectedly strive advantage and promotion potential.
1600 DEG C of synthetic gas are produced, 210 DEG C of Quench gas Quench sent here through compressor in Quench section and be down to 900 DEG C with drum water heat-exchange temperature after Shell Coal Gasification gasification reaction in furnace.The synthetic gas that temperature is down to 900 DEG C flows through delivery conduit section and the heat exchange again of drum water, temperature is down to 830 DEG C, and then deliver to superheat section after heat transfer tube heat exchange, temperature is down to 750 DEG C, and superheat section temperature easily causes vapourizing furnace cross bracing dust stratification 750 DEG C time.For reducing superheat section temperature, current common way reduces vapourizing furnace load, and vapourizing furnace load is usually the highest can only reach 75%, can not meet the requirement of subsequent handling to tolerance, constrain the continuous and steady operation of production.
Summary of the invention
The purpose of this utility model is the deficiency overcoming prior art, provides a kind of Quench section enhancement of heat transfer structure that can make the improvement of the continuous oepration at full load of coal gasifier.
The Quench section enhancement of heat transfer structure of a kind of improvement of the present utility model, it comprises:
Feedwater induction pipe line;
Drum, the import of described drum is connected with feedwater induction pipe line by the steam inlet pipeline that first-class gauge and the first variable valve are housed, the outlet of described drum is divided into two branch roads, the outlet that first branch road of the 3rd under meter is housed is connected with the heat transfer tube of Quench section, the heat transfer tube air outlet of Quench section is connected with drum by the Quench section that the first water-mass density table is housed pipeline of giving vent to anger, the outlet that second branch road of the 4th under meter is housed is connected with the heat transfer tube of delivery conduit section, the heat transfer tube air outlet of delivery conduit section is connected with drum by the delivery conduit section that the second water-mass density table is housed pipeline of giving vent to anger,
Two feedwaters send water arm, two described feedwaters send water arm by being provided with the first water inlet hand valve successively, second gauge, second is intake, and hand valve is connected with feedwater induction pipe line water outlet with the house steward of the second variable valve, first feedwater that 3rd water inlet hand valve is housed send the water outlet of water arm to be connected with the first branch road of the 3rd under meter ingress, and second feedwater that the 4th water inlet hand valve is housed send the water outlet of water arm to be connected with the second branch road of the 4th under meter ingress.
The beneficial effect of the utility model device is:
When feedwater (120t/h) all enters from the Quench section of vapourizing furnace and delivery conduit section, superheat section temperature declines 30 DEG C, and vapourizing furnace load can improve about 3%.Less input for the utility model, but transformed the improved production bottleneck of rear vapourizing furnace load breakthrough compressor, and load is increased to 95% from 92%, thus reduces operation production cost.
Accompanying drawing explanation
Accompanying drawing is the structural representation of the Quench section enhancement of heat transfer structure of a kind of improvement of the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The Quench section enhancement of heat transfer structure of a kind of improvement of the present utility model as shown in drawings, it comprises: (a) feedwater induction pipe line, (b) drum, the import of described drum is connected with feedwater induction pipe line by the steam inlet pipeline that first-class gauge F1 and the first variable valve FV1 are housed, the outlet of described drum is divided into two branch roads, the outlet that first branch road of the 3rd under meter F3 is housed is connected with the heat transfer tube of Quench section, the heat transfer tube air outlet of Quench section is connected with drum by the Quench section that the first water-mass density table is housed pipeline of giving vent to anger, the outlet that second branch road of the 4th under meter F4 is housed is connected with the heat transfer tube of delivery conduit section, the heat transfer tube air outlet of delivery conduit section is connected with drum by the delivery conduit section that the second water-mass density table is housed pipeline of giving vent to anger, c () two feedwaters send water arm, two described feedwaters send water arm by being provided with the first water inlet hand valve BV1, second gauge F2 successively, the second water inlet hand valve BV2 is connected with feedwater induction pipe line water outlet with the house steward of the second variable valve FV2, first feedwater that 3rd water inlet hand valve BV3 is housed send the water outlet of water arm to be connected with the first branch road of the 3rd under meter F3 ingress, and second feedwater that the 4th water inlet hand valve BV4 is housed send the water outlet of water arm to be connected with the second branch road of the 4th under meter F4 ingress.
The operation side of this structure is:
(1) first the second variable valve FV2 on house steward and first-hand valve BV1 and second-hand's valve BV2 is closed when vapourizing furnace is driven, the 4th hand valve BV4 on the 3rd hand valve BV3 on first arm and the second arm is opened, feedwater flows into the heat transfer tube of Quench section and the heat transfer tube of delivery conduit section through drum successively, then is back to drum through Quench section pipeline and delivery conduit section pipeline of giving vent to anger of giving vent to anger; The aperture of the first variable valve FV1 is meanwhile adjusted according to liquid level of steam drum;
(2) gasifier operation steadily after, open described first-hand valve BV1 and second-hand's valve BV2, close variable valve FV1 gradually, slowly open the second variable valve FV2 on house steward, along with the second variable valve FV2 opens, observation Quench section give vent to anger the first water-mass density table on pipeline and delivery conduit section give vent to anger the second water-mass density table display on pipeline numerical value and make the first water-mass density table numerical value and the not super 700kg/m of the second water-mass density table Numerical Control by the flooding quantity of adjustment first branch road and the second branch road
3and the first water-mass density table numerical value and the not super 200kg/m of the second water-mass density table number density difference
3; Slowly opening in the second variable valve FV2 process on house steward simultaneously, flow many increases nkg/s of the second variable valve FV2, then make furnace temperature remain on 4.0+0.13n ± 0.1kg/s by the ratio of the oxygen in adjustment vapourizing furnace and carbonic acid gas, the n in formula is positive integer.
Claims (1)
1. the Quench section enhancement of heat transfer structure improved, is characterized in that it comprises:
Feedwater induction pipe line;
Drum, the import of described drum is connected with feedwater induction pipe line by the steam inlet pipeline that first-class gauge and the first variable valve are housed, the outlet of described drum is divided into two branch roads, the outlet that first branch road of the 3rd under meter is housed is connected with the heat transfer tube of Quench section, the heat transfer tube air outlet of Quench section is connected with drum by the Quench section that the first water-mass density table is housed pipeline of giving vent to anger, the outlet that second branch road of the 4th under meter is housed is connected with the heat transfer tube of delivery conduit section, the heat transfer tube air outlet of delivery conduit section is connected with drum by the delivery conduit section that the second water-mass density table is housed pipeline of giving vent to anger,
Two feedwaters send water arm, two described feedwaters send water arm by being provided with the first water inlet hand valve successively, second gauge, second is intake, and hand valve is connected with feedwater induction pipe line water outlet with the house steward of the second variable valve, first feedwater that 3rd water inlet hand valve is housed send the water outlet of water arm to be connected with the first branch road of the 3rd under meter ingress, and second feedwater that the 4th water inlet hand valve is housed send the water outlet of water arm to be connected with the second branch road of the 4th under meter ingress.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548566.3U CN204138618U (en) | 2014-09-23 | 2014-09-23 | A kind of Quench section enhancement of heat transfer structure of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548566.3U CN204138618U (en) | 2014-09-23 | 2014-09-23 | A kind of Quench section enhancement of heat transfer structure of improvement |
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| Publication Number | Publication Date |
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| CN204138618U true CN204138618U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420548566.3U Active CN204138618U (en) | 2014-09-23 | 2014-09-23 | A kind of Quench section enhancement of heat transfer structure of improvement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345459A (en) * | 2019-07-10 | 2019-10-18 | 中海石油华鹤煤化有限公司 | A kind of coal slurry gasifier and high-pressure boiler coproduction steam enhancing device and method |
-
2014
- 2014-09-23 CN CN201420548566.3U patent/CN204138618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110345459A (en) * | 2019-07-10 | 2019-10-18 | 中海石油华鹤煤化有限公司 | A kind of coal slurry gasifier and high-pressure boiler coproduction steam enhancing device and method |
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