CN205710614U - A kind of coal gasified black water processing system overbottom pressure energy recovery system - Google Patents

A kind of coal gasified black water processing system overbottom pressure energy recovery system Download PDF

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Publication number
CN205710614U
CN205710614U CN201620341389.0U CN201620341389U CN205710614U CN 205710614 U CN205710614 U CN 205710614U CN 201620341389 U CN201620341389 U CN 201620341389U CN 205710614 U CN205710614 U CN 205710614U
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pressure
gasification burner
water
coal
connects
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CN201620341389.0U
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Chinese (zh)
Inventor
吴玉珍
赵钊
张彦军
丛建华
冉治通
郝开元
张春雷
于槟恺
于继胜
曹耀
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Beijing Aerospace Propulsion Institute
Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp Ltd
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Beijing Aerospace Propulsion Institute
Beijing Aerospace Petrochemical Technology and Equipment Engineering Corp Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/10Process efficiency

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Abstract

This utility model provides a kind of coal gasified black water processing system overbottom pressure energy recovery system.Heisui River, the bottom outlet of its gasification burner two pipelines in parallel connect high pressure flash groove entrance, wherein set gradually flow control valve, hydraulic turbine, pressure-regulating valve one on a pipeline, another pipeline arranges pressure-regulating valve two;Hydraulic turbine connects load equipment;Its overbottom pressure energy that Heisui River energy is divided into more than water saturation pressure and heat energy two parts, heat energy uses high pressure flash groove flash of steam to be reclaimed, and overbottom pressure can use hydraulic turbine to be reclaimed.This utility model improves the energy regenerating level of coal gasification wet dedusting black water treatment system, reduces plant energy consumption, is conducive to improving the running status of pressure-regulating valve (or claiming flash valve) simultaneously, reduces equipment loss.

Description

A kind of coal gasified black water processing system overbottom pressure energy recovery system
Technical field
This utility model belongs to energy regenerating or field of energy conversion, it is specifically related to a kind of coal gasified black water processing system overbottom pressure energy recovery system, it is the recovery of pressure energy be applicable to coal gasification apparatus wet dedusting process system, and the energy of recovery can be used for driving pump or electromotor and other slewing.
Background technology
Coal gasification is the core technology of coal clean utilization, the most powdered coal pressuring gasified, water coal slurry pressure gasification and other gasifying process, the raw gas produced has to pass through udst separation, a kind of dust collection method being most widely used during wherein wet dedusting is coal gasification course.Wet dedusting have operate steadily, feature that equipment manufacturing cost is low.Although Heisui River makes heat obtain abundant recovery through the means such as flash distillation, heat exchange during wet dedusting, but dry method dust energy consumption relatively is the most slightly higher.
Up to the present, black water treatment system overbottom pressure can reclaim and the most still belong to blank.Reason is Heisui River medium high temperature, containing fixed gas, the design of turbine structure is caused difficulty containing solid particle, in turbine blood pressure lowering flow process, fixed gas separates out simultaneously, high-temperature water may operating turbine be had an impact by flash distillation, system capacity matching status, system run all right is had an impact by Heisui River pressure and flow-control under local depression flox condition in turbine.Therefore, reasonable design black water treatment system and energy-recuperation system are this utility model key problem in technology.
Summary of the invention
The purpose of this utility model is to provide a kind of coal gasified black water processing system overbottom pressure energy recovery system, and it can reduce coal clean utilization system energy consumption, improve economy.
Realize the technical scheme of this utility model purpose: a kind of coal gasified black water processing system overbottom pressure energy recovery system, this system includes receiving oxygen, coal dust or the gasification burner of water-coal-slurry, and oxygen, coal dust or water-coal-slurry are burnt in gasification burner and formed raw gas;Heisui River, the bottom outlet of its gasification burner two pipelines in parallel connect high pressure flash groove entrance, wherein set gradually flow control valve, hydraulic turbine, pressure-regulating valve one on a pipeline, another pipeline arranges pressure-regulating valve two;Hydraulic turbine connects load equipment;Its overbottom pressure energy that Heisui River energy is divided into more than water saturation pressure and heat energy two parts, heat energy uses high pressure flash groove flash of steam to be reclaimed, and overbottom pressure can use hydraulic turbine to be reclaimed.
A kind of coal gasified black water processing system overbottom pressure energy recovery system as above, the steam (vapor) outlet of its described high pressure flash groove connects the steam inlet of heat exchanger;The water out of high pressure flash groove connects the entrance of deoxygenation groove, and the outlet of deoxygenation groove connects the entrance of scrubbing tower feed pump, and scrubbing tower feed delivery side of pump connects the water inlet of heat exchanger;The water out of heat exchanger connects the water inlet of scrubbing tower;The water out of scrubbing tower connects the entrance of chilling water pump, and chilled water (chw) delivery side of pump connects the water inlet of gasification burner bottom;The raw gas outlet on gasification burner top connects the entrance of scrubbing tower;Slag outlet bottom gasification burner connects slag breaker.
A kind of coal gasified black water processing system overbottom pressure energy recovery system as above, the raw gas outlet on its described gasification burner top connects the entrance of scrubbing tower by injector.
Coal gasified black water processing system overbottom pressure energy recovery system as above a kind of, its described load equipment is electromotor or pump or other slewing.
A kind of coal gasified black water processing system overbottom pressure energy recovery system as above, it enters scrubbing tower from described gasification burner raw gas out, in scrubbing tower, water from heat exchanger carries out cleaning dust to the raw gas come from gasification burner, the buck formed, in gasification burner is injected in chilling water pump supercharging, carries out chilling to the coal gas in gasification burner and slag;The Heisui River formed in gasification burner bottom enters hydraulic turbine, reclaims overbottom pressure by hydraulic turbine and can drive load equipment;High pressure flash groove is entered from hydraulic turbine Heisui River out;From high pressure flash groove water out after deoxygenation groove, entered after heat exchange columns heats by scrubbing tower feed pump and enter scrubbing tower;Enter heat exchanger from high pressure flash groove steam out, discharged by the steam (vapor) outlet of heat exchanger after heat exchange cooling in heat exchanger;The slag that gasification burner is formed enters the slag breaker connected bottom gasification burner.
A kind of coal gasified black water processing system overbottom pressure energy recovery system as above, the pressure of its described gasification burner is P1, water saturation pressure is P2, the overbottom pressure energy P of hydraulic turbine recovery3=P1-P2
Effect of the present utility model is: this utility model is analyzed for from gasification burner Heisui River energy composition situation out, the overbottom pressure that Heisui River energy is divided into more than water saturation pressure can be with heat energy two parts, the heat energy of saturation water uses the energy reclaiming method of flash of steam, uses hydraulic turbine to be reclaimed overbottom pressure energy.This utility model improves the energy regenerating level of coal gasification wet dedusting black water treatment system, reduces plant energy consumption, is conducive to improving the running status of pressure-regulating valve (or claiming flash valve) simultaneously, reduces equipment loss.According to coal gasification scale, the difference of gasification burner pressure, the level of energy regenerating is different, wherein, uses this utility model system, and the recovery levels of Heisui River overbottom pressure energy is up to 50%~80%.With 750 tons of coal/skies of gasification burner treating capacity, gasification burner pressure 4MPa, recyclable corresponding Heisui River overbottom pressure energy 80kW, annual recyclable electric energy 640,000 degree.Gasification burner treating capacity is the biggest, and energy recovery rate is the highest, when 1500 tons of coal/skies, gasification burner pressure 4MPa, recovers energy up to 200kW, annual recovery electric energy about 1,600,000 degree.
Accompanying drawing explanation
Fig. 1 is a kind of coal gasified black water processing system overbottom pressure energy recovery system schematic diagram described in the utility model.
In figure: 1. gasification burner;2. slag breaker;3. flow control valve;4. hydraulic turbine;5. pressure-regulating valve one;6. high pressure flash groove;7. deoxygenation groove;8. pressure-regulating valve two;9. heat exchanger;10. scrubbing tower;11 injectors;12. chilling water pumps;13. scrubbing tower feed pumps;14. load equipments.
Detailed description of the invention
With specific embodiment, a kind of coal gasified black water processing system overbottom pressure energy recovery system described in the utility model is further described below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of coal gasified black water processing system overbottom pressure energy recovery system described in the utility model, it includes gasification burner 1, slag breaker 2, flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1, high pressure flash groove 6, deoxygenation groove 7, pressure-regulating valve 28, heat exchanger 9, scrubbing tower 10, injector 11, chilling water pump 12, scrubbing tower feed pump 13, load equipment 14.
Heisui River, the bottom outlet of gasification burner 1 two pipelines in parallel connect high pressure flash groove 6 entrance, wherein set gradually flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1 on a pipeline, another pipeline arranges pressure-regulating valve 28;Hydraulic turbine 4 connects load equipment 14;Its overbottom pressure energy that Heisui River energy is divided into more than water saturation pressure and heat energy two parts, heat energy uses high pressure flash groove 6 flash of steam to be reclaimed, and overbottom pressure can use hydraulic turbine to be reclaimed.Load equipment 14 is electromotor or pump or other slewings.
The steam (vapor) outlet of high pressure flash groove 6 connects the steam inlet of heat exchanger 9.
The water out of high pressure flash groove 6 connects the entrance of deoxygenation groove 7, and the outlet of deoxygenation groove 7 connects the entrance of scrubbing tower feed pump 13, and the outlet of scrubbing tower feed pump 13 connects the water inlet of heat exchanger 9.
The water out of heat exchanger 9 connects the water inlet of scrubbing tower 10.
The water out of scrubbing tower 10 connects the entrance of chilling water pump 12, and the outlet of chilling water pump 12 connects the water inlet of gasification burner 1 bottom.
The raw gas outlet on gasification burner 1 top connects the entrance of scrubbing tower 10.
Slag outlet bottom gasification burner 1 connects slag breaker 2.
During a kind of coal gasified black water processing system overbottom pressure energy recovery system work described in the utility model:
Oxygen, coal dust or water-coal-slurry are burnt in gasification burner 1 and are formed raw gas, raw gas enters scrubbing tower 10 by injector 11, in scrubbing tower 10, water from heat exchanger 9 carries out cleaning dust to from the raw gas of gasification burner 1, the buck formed, in gasification burner 1 is injected in chilling water pump 12 supercharging, carries out chilling to the coal gas in gasification burner 1 and slag;
The Heisui River formed in gasification burner 1 bottom enters hydraulic turbine 4, reclaims overbottom pressure by hydraulic turbine and can drive load equipment 14;High pressure flash groove 6 is entered from hydraulic turbine 4 Heisui River out;
From high pressure flash groove 6 water out after deoxygenation groove 7, entered after heat exchange columns 9 heats by scrubbing tower feed pump 13 and enter scrubbing tower 10;
Enter heat exchanger 9 from high pressure flash groove 6 steam out, discharged by the steam (vapor) outlet of heat exchanger 9 after heat exchange cooling in heat exchanger 9;
The slag that gasification burner 1 is formed enters the slag breaker 2 connected bottom gasification burner 1.
The pressure of described gasification burner 1 is P1, water saturation pressure is P2, the overbottom pressure energy P of hydraulic turbine 4 recovery3=P1-P2
A kind of coal gasified black water processing system overbottom pressure energy recovery system concrete grammar recoverable to overbottom pressure described in the utility model is used to comprise the steps:
A () oxygen and coal dust enter gasification burner 1 in, burning forms raw gas, and raw gas is entered in scrubbing tower 10 by injector 11;
B Heisui River out, () gasification burner 1 bottom enters high pressure flash groove 6 after flow control valve 3, hydraulic turbine 4, pressure-regulating valve 1, part water forms low-pressure steam, separates out fixed gas simultaneously;Reclaim overbottom pressure by hydraulic turbine and can drive load equipment 14;Described load equipment 14 is electromotor or pump or other slewings.
C () enters heat exchanger 9 from high pressure flash groove 6 steam containing fixed gas out, for heating from the water of scrubbing tower feed pump 13;
Entering heat exchanger 9 by scrubbing tower feed pump 13 after high pressure flash groove 6 water out enters deoxygenation groove 7 deoxygenation to heat, after heat exchanger 9 heats, water out enters in scrubbing tower 10, and the raw gas come from gasification burner is carried out cleaning dust;
D the buck formed in () scrubbing tower 10 injects gasification burner 1 bottom through chilling water pump 12 supercharging and coal gas and slag is carried out chilling;
E slag that () gasification burner 1 is formed enters slag breaker 2.
In the present embodiment, gasification burner 1 pressure is 4.0MPa level;Pressure about the 0.5MPa of high pressure flash groove;Gasification burner 1 cold water temperature of having to go to the toilet is at about 210 DEG C, and the saturation pressure of this temperature water is about 1.9MPa (A).
Flash distillation is by blood pressure lowering by the water of saturation, makes part water absorption heat formation steam, other parts water become the process of low pressure saturation water.Visible, at a temperature of gasification burner Heisui River pressure out is with this, water saturation pressure has bigger difference, directly flash distillation can't because pressure is high heat more to vaporizing section dielectric contribution, i.e. flash-off steam amount is constant, be conducive to saving energy and reduce the cost so this part overbottom pressure can be reclaimed by this utility model by hydraulic turbine, and gasification burner pressure is the highest, gasification yield is the highest, the recovering effect of this part overbottom pressure energy is the most obvious.
Interest field of the present utility model is not limited only to word of the present utility model and diagramatic content, comprises the standby flash lines derived by this utility model and uses the configuration mode identical with turbine flash lines, default, the turbine line increasing Flow-rate adjustment line, flow control valve and pressure-regulating valve and Flow-rate adjustment line to share the situations such as a pressure-regulating valve.The increase and decrease of other switch valve of systematic pipeline, regulation valve form change without prejudice to this utility model content.This utility model method can also be in the application of other association area.

Claims (6)

1. a coal gasified black water processing system overbottom pressure energy recovery system, this system includes receiving oxygen, coal dust or the gasification burner (1) of water-coal-slurry, and oxygen, coal dust or water-coal-slurry are burnt in gasification burner (1) and formed raw gas;It is characterized in that: Heisui River, the bottom outlet of gasification burner (1) two pipelines in parallel connect high pressure flash groove (6) entrance, wherein set gradually flow control valve (3), hydraulic turbine (4), pressure-regulating valve one (5) on a pipeline, another pipeline arranges pressure-regulating valve two (8);Hydraulic turbine (4) connects load equipment (14);Its overbottom pressure energy that Heisui River energy is divided into more than water saturation pressure and heat energy two parts, heat energy uses high pressure flash groove (6) flash of steam to be reclaimed, and overbottom pressure can use hydraulic turbine to be reclaimed.
A kind of coal gasified black water processing system overbottom pressure energy recovery system the most according to claim 1, it is characterised in that: the steam (vapor) outlet of described high pressure flash groove (6) connects the steam inlet of heat exchanger (9);
The water out of high pressure flash groove (6) connects the entrance of deoxygenation groove (7), the outlet of deoxygenation groove (7) connects the entrance of scrubbing tower feed pump (13), and the outlet of scrubbing tower feed pump (13) connects the water inlet of heat exchanger (9);
The water out of heat exchanger (9) connects the water inlet of scrubbing tower (10);
The water out of scrubbing tower (10) connects the entrance of chilling water pump (12), and the outlet of chilling water pump (12) connects the water inlet of gasification burner (1) bottom;
The raw gas outlet on gasification burner (1) top connects the entrance of scrubbing tower (10);
The slag outlet of gasification burner (1) bottom connects slag breaker (2).
A kind of coal gasified black water processing system overbottom pressure energy recovery system the most according to claim 2, it is characterised in that: the raw gas outlet on described gasification burner (1) top connects the entrance of scrubbing tower (10) by injector (11).
A kind of coal gasified black water processing system overbottom pressure energy recovery system the most according to claim 2, it is characterised in that: described load equipment (14) is electromotor or pump or other slewing.
A kind of coal gasified black water processing system overbottom pressure energy recovery system the most according to claim 2, it is characterized in that: enter scrubbing tower (10) from described gasification burner (1) raw gas out, in scrubbing tower (10), water from heat exchanger (9) carries out cleaning dust to the raw gas come from gasification burner (1), the buck formed, in gasification burner (1) is injected in chilling water pump (12) supercharging, carries out chilling to the coal gas in gasification burner (1) and slag;
The Heisui River formed in gasification burner (1) bottom enters hydraulic turbine (4), reclaims overbottom pressure by hydraulic turbine and can drive load equipment (14);High pressure flash groove (6) is entered from hydraulic turbine (4) Heisui River out;
From high pressure flash groove (6) water out after deoxygenation groove (7), entered after heat exchanger (9) heats by scrubbing tower feed pump (13) and enter scrubbing tower (10);
Enter heat exchanger (9) from high pressure flash groove (6) steam out, discharged by the steam (vapor) outlet of heat exchanger (9) after heat exchange cooling in heat exchanger (9);
The slag that gasification burner (1) is formed enters the slag breaker (2) that gasification burner (1) bottom connects.
A kind of coal gasified black water processing system overbottom pressure energy recovery system the most according to claim 1, it is characterised in that: the pressure of described gasification burner (1) is P1, water saturation pressure is P2, overbottom pressure energy P that hydraulic turbine (4) reclaims3=P1-P2
CN201620341389.0U 2016-04-21 2016-04-21 A kind of coal gasified black water processing system overbottom pressure energy recovery system Withdrawn - After Issue CN205710614U (en)

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CN201620341389.0U CN205710614U (en) 2016-04-21 2016-04-21 A kind of coal gasified black water processing system overbottom pressure energy recovery system

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Application Number Priority Date Filing Date Title
CN201620341389.0U CN205710614U (en) 2016-04-21 2016-04-21 A kind of coal gasified black water processing system overbottom pressure energy recovery system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110330469A (en) * 2019-07-27 2019-10-15 河南心连心化学工业集团股份有限公司 Energy recovery device and energy recovery method in crude furfuryl alcohol separation process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110330469A (en) * 2019-07-27 2019-10-15 河南心连心化学工业集团股份有限公司 Energy recovery device and energy recovery method in crude furfuryl alcohol separation process

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Granted publication date: 20161123

Effective date of abandoning: 20190108