CN206262126U - It is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge - Google Patents
It is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge Download PDFInfo
- Publication number
- CN206262126U CN206262126U CN201621341443.8U CN201621341443U CN206262126U CN 206262126 U CN206262126 U CN 206262126U CN 201621341443 U CN201621341443 U CN 201621341443U CN 206262126 U CN206262126 U CN 206262126U
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- CN
- China
- Prior art keywords
- vacuum
- flash system
- flash
- hydraulic ejector
- water tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model be related to it is a kind of improve heat recovery rate and reduce the flash system of waste gas discharge, the flash system includes：The devices such as vacuum flasher, vacuum flashing condenser, hydraulic ejector, subsider and ash water tank.Wherein, vacuum flasher top duct is connected with vacuum flashing condenser, and vacuum flashing condenser overhead pipeline is connected with hydraulic ejector, liquid pipe line insertion subsider under vacuum flasher, liquid pipe line insertion ash water tank under vacuum flashing condenser and hydraulic ejector.Flash system of the present utility model, heat recovery is carried out using hydraulic ejector, and heat recovery efficiency is high, is breached conventional art and is used recirculated cooling water by the technological deficiency of the heat treatment mode of vacuum flashing vapour total condensation.The hydraulic ejector that the utility model is used can realize the purpose of energy-saving and emission-reduction without power consumption, non-pollutant discharge, solve the problems, such as that the pollutant emission of flash vacuum pump in conventional art is exceeded.
Description
Technical field
The utility model is related to corresponding flash system in Coal Gasification Technology, and in particular to one kind can improve heat recovery
Rate simultaneously reduces the flash system of waste gas discharge.
Background technology
Coal Gasification Technology is the most important production technology of producing synthesis gas, dry coal or wet coal by after gasification furnace burning,
Lime-ash removes thick slag through Quench and washing, and two grades of the Heisui River containing fine ash or three stages of flashing reclaim heat, obtain buck, as
Gasification cleaning solution and recycle.As known in the art, Heisui River is generally referred to directly from gasification furnace, scrubbing tower two
The water containing gasification carbon residue mostly that point bottom is expelled directly out；And buck generally refers to Heisui River and is removed slag through flash distillation process precipitation clarification
The water for obtaining afterwards.
In flash system corresponding to coal gasification apparatus traditional at present, vacuum flashing condenser flashes vacuum flasher
After going out 99.9% condensation of steam, fixed gas discharges air by flash vacuum pump, and this behavior not only causes heat recovery rate low,
And row's Outgassing contamination air.
Therefore, made improvements there is a need in the art for existing flash system, heat recovery rate can be improved, moreover it is possible to subtract
The discharge of pollutant, realizes the purpose of energy-saving and emission-reduction in few waste gas.
Utility model content
The purpose of this utility model is that offer is a kind of to be improved heat recovery rate and reduces the flash system of waste gas discharge,
Be used to solve in the prior art because using the heat recovery rate brought flash vacuum pump it is low, Pollutant emission concentration is high etc. asks
Topic.
To achieve the above object, the utility model provides a kind of heat-recoverable and reduces the flash system of waste gas discharge,
The flash system includes：Vacuum flasher, vacuum flashing condenser, hydraulic ejector, subsider and ash water tank.Wherein,
Vacuum flasher top duct is connected with vacuum flashing condenser, and vacuum flashing condenser overhead pipeline connects with hydraulic ejector
Connect；Liquid pipe line insertion subsider under vacuum flasher, subsider Heisui River after settlement overflow to ash water tank, subsider sedimentation gained
Fine slag enters fine slag and processes workshop section through subsider bottom pipe；Liquid pipe line insertion ash water tank under vacuum flashing condenser, waterpower spray
Liquid pipe line connection ash water tank under emitter.
Further, flash system also includes low pressure ash water pump, low pressure ash water pump connection ash water tank and hydraulic ejector, ash
Buck in tank is recycled to hydraulic ejector and steam, recovered steam heat by low pressure ash water pump pressurization.
Further, the descending strength drive steam of hydraulic ejector reclaimed water is descending, and water is mixed and changed with steam
Heat.
In one embodiment, the import Heisui River of vacuum flasher from hp flash drum and/or low pressure flash chamber with
And the Heisui River from slag pool pump conveying.
In one embodiment, vacuum flasher does not control liquid level, and liquid pipe line is inserted directly into sedimentation under vacuum flasher
Groove center, by the use of the liquid level of subsider as fluid-tight, to ensure the vacuum of vacuum flasher.
In one embodiment, liquid pipe line is inserted directly into buck groove center under vacuum flashing condenser, using ash water tank
Liquid level as fluid-tight, to ensure the vacuum of vacuum flashing condenser.
In one embodiment, the vacuum of vacuum flasher and vacuum flashing condenser further can also be sprayed by waterpower
Emitter is realized.
In one embodiment, flash steam is partial condensation in vacuum flashing condenser, and the condensation number of flash steam can lead to
Cross the regulation of circulating cooling water.
Flash system of the present utility model has the following advantages that：
In flash system of the present utility model, the steam that vacuum flasher is flashed off enters vacuum flashing condenser, flash distillation
Vapour can be adjusted in vacuum flashing condenser partial condensation, condensation number by circulating cooling water.Flash system of the present utility model
Compared with traditional flash system, the gasification point rate of steam can reduce by 12~20%, uncooled steam in vacuum flashing condenser
Heat is recycled after into hydraulic ejector, and the grey coolant-temperature gage in ash water tank can be made to improve 7~11 DEG C than traditional approach, gram
Take and vacuum state is realized using flash vacuum pump in conventional art, but the utilization of flash vacuum pump can not reclaim heat, also
Produce the shortcoming of pollutant emission air.
At the same time, because the flash system uses hydraulic ejector instead of flash vacuum pump, and the fortune of hydraulic ejector
Row is not required to power consumption, and when normally running, the power consumption of low pressure ash water pump can reduce by 20~35% than flash vacuum pump.The utility model
Flash system, can not only reduce the usage amount of recirculated cooling water, improve the rate of recovery of heat, power consumption, drop can also be reduced
Low stain thing is discharged.
Brief description of the drawings
Fig. 1 is of the present utility model to improve heat recovery rate and reduce the workflow frame of the flash system of waste gas discharge
Figure.
Specific embodiment
The technical solution of the utility model and technology are further illustrated below by specific embodiment and with reference to accompanying drawing
Effect.It should be understood that implementation below is used to illustrate the utility model, but it is not limited to scope of the present utility model.
As shown in figure 1, flash system of the present utility model includes：Vacuum flasher 1, the spray of vacuum flashing condenser 2, waterpower
Emitter 3, subsider 4, ash water tank 5 and low pressure ash water pump 6.Wherein, the top duct of vacuum flasher 1 and vacuum flashing condenser
2 connections, the top duct of vacuum flashing condenser 2 is connected with hydraulic ejector 3, and it is heavy that 1 time liquid pipe line of vacuum flasher is inserted directly into
Drop groove 4 center, the Heisui River of subsider 4 after settlement overflow to ash water tank 5, the sedimentation gained fine slag of subsider 4 is entered through the bottom of subsider 4
Enter fine slag treatment workshop section, 2 times liquid pipe line insertion ash water tank 5 centers of vacuum flashing condenser, 3 times liquid pipe line connections of hydraulic ejector
To ash water tank 5, buck enters hydraulic ejector 3 with recovered steam heat after being pressurizeed through low pressure ash water pump 6 in ash water tank 5.
In the flash system of above-mentioned implementation method, the Heisui River that gasification furnace and scrubbing tower in coal gasification workshop section are produced passes through successively
The Heisui River conveyed with slag pool pump after hp flash drum, low pressure flash chamber concentration cooling enters vacuum flasher 1, and Heisui River is dodged in vacuum
Flash steam in steaming pot 1 obtained by flash distillation initially enters vacuum flashing condenser 2 and carries out partial condensation, and condensation number can be cold according to circulating
But runoff investigation.Vacuum flasher 1 is not required to control liquid level, and 1 time liquid pipe line of vacuum flasher is inserted directly into the center of subsider 4, profit
With the liquid level of subsider 4 as fluid-tight, to ensure its vacuum.The vacuum of vacuum flasher 1 and vacuum flashing condenser 2 is entered
One step is realized by hydraulic ejector 3.
Compared with existing flash system, the gasification of steam divides flash system of the present utility model in vacuum flashing condenser 2
Rate can reduce by 12~20%, and uncooled steam reclaims heat by hydraulic ejector 3, can make the grey coolant-temperature gage in ash water tank 5
Improve 7~11 DEG C.Because the flash system replaces flash vacuum pump using hydraulic ejector 3, when normally running, low pressure ash water pump
6 power consumption can reduce by 20~35% than flash vacuum pump.
Although above having made detailed description to the utility model with generality explanation and specific embodiment,
On the basis of the utility model, it can be made some modifications or improvements, this is to those skilled in the art apparent
's.Therefore, the these modifications or improvements on the basis of without departing from the utility model spirit, belonging to the utility model will
Seek the scope of protection.
Claims (8)
1. it is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge, it is characterised in that the flash system bag
Include：Vacuum flasher, vacuum flashing condenser, hydraulic ejector, subsider and ash water tank, wherein,
Vacuum flasher top duct is connected with vacuum flashing condenser, vacuum flashing condenser overhead pipeline and hydraulic ejector
Connection；Liquid pipe line insertion subsider under vacuum flasher, subsider Heisui River after settlement overflow to ash water tank, subsider sedimentation institute
Obtain fine slag and enter fine slag treatment workshop section through subsider bottom pipe；Liquid pipe line insertion ash water tank, waterpower under vacuum flashing condenser
Liquid pipe line connection ash water tank under injector.
2. flash system according to claim 1, it is characterised in that the flash system also includes low pressure ash water pump, low
Pressure grey water pump connection ash water tank and hydraulic ejector, the buck in ash water tank are recycled to water-jet by low pressure ash water pump pressurization
Device and steam, recovered steam heat.
3. flash system according to claim 2, it is characterised in that the descending strength of the hydraulic ejector reclaimed water drives
Steam is descending, and water is mixed and exchanged heat with steam.
4. the flash system according to any one of claim 1-3, it is characterised in that the import of the vacuum flasher is black
Heisui River of the water from hp flash drum and/or low pressure flash chamber and from slag pool pump conveying.
5. the flash system according to any one of claim 1-3, it is characterised in that the vacuum flasher does not control liquid
Position, liquid pipe line is inserted directly into sedimentation groove center under vacuum flasher, by the use of the liquid level of subsider as fluid-tight, to ensure that vacuum is dodged
The vacuum of steaming pot.
6. the flash system according to any one of claim 1-3, it is characterised in that liquid under the vacuum flashing condenser
Pipeline is inserted directly into buck groove center, by the use of the liquid level of ash water tank as fluid-tight, to ensure the vacuum of vacuum flashing condenser.
7. the flash system according to any one of claim 1-3, it is characterised in that the vacuum flasher and vacuum are dodged
The vacuum of evaporation condenser is further realized by hydraulic ejector.
8. the flash system according to any one of claim 1-3, it is characterised in that dodged in the vacuum flashing condenser
Steam is partial condensation, and the condensation number of flash steam is adjusted by circulating cooling water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621341443.8U CN206262126U (en) | 2016-12-07 | 2016-12-07 | It is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621341443.8U CN206262126U (en) | 2016-12-07 | 2016-12-07 | It is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206262126U true CN206262126U (en) | 2017-06-20 |
Family
ID=59044672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621341443.8U Withdrawn - After Issue CN206262126U (en) | 2016-12-07 | 2016-12-07 | It is a kind of to improve heat recovery rate and reduce the flash system of waste gas discharge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206262126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492494A (en) * | 2016-12-07 | 2017-03-15 | 马宏波 | A kind of improve heat recovery rate and reduce the flash system of waste gas discharge |
-
2016
- 2016-12-07 CN CN201621341443.8U patent/CN206262126U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106492494A (en) * | 2016-12-07 | 2017-03-15 | 马宏波 | A kind of improve heat recovery rate and reduce the flash system of waste gas discharge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170620 Effective date of abandoning: 20190726 |