CN205856407U - A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus - Google Patents
A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus Download PDFInfo
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- CN205856407U CN205856407U CN201620820994.6U CN201620820994U CN205856407U CN 205856407 U CN205856407 U CN 205856407U CN 201620820994 U CN201620820994 U CN 201620820994U CN 205856407 U CN205856407 U CN 205856407U
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus, including water-coal-slurry storage tank, high-pressure coal pulp pump, double pipe heat exchanger, gasification furnace process burner, from Low Pressure Flashing Column and oxygen-eliminating device, described water-coal-slurry storage tank is connected to the input of high-pressure coal pulp pump by pipeline, high-pressure coal slurry delivery side of pump, by hose connection to double pipe heat exchanger, all uses hose connection between each section of double pipe heat exchanger.This waste heat recovery heating water-coal-slurry, for coal gasification apparatus, improves water-coal-slurry temperature, it is possible to is effectively improved water-coal-slurry and enters atomizing effect after gasification furnace, reduces coal consumption and oxygen consumption, improves coal conversion ratio, increase available gas composition；Reclamation of condensate water after heat exchange, to system oxygen-eliminating device moisturizing, reduces environment protection emission.
Description
Technical field
This utility model relates to environment-protective process equipment technical field, and especially a kind of waste heat recovery heating water-coal-slurry is for coal
Gasification installation.
Background technology
In coal water slurry gasifying device technology, black water treatment system utilizes multistage flash distillation device to reclaim heat, dodges at high pressure
Steam partially recycled heat generation 0.8MPa steam to produce for system, but typically exist at the low-pressure steam that low pressure flash is partially recycled
About 0.15Mpa, may utilize less in systems, and most directly emptying process or enter oxygen-eliminating device and are used as system water supplement, cause
Environmental pollution, heat waste.
Gasification furnace enters stove water under high pressure coal slurry temperature typically at about 45 DEG C, needs to absorb gasification reaction heat after entering gasification furnace
Just reaching combustion gasification reaction after reaching uniform temperature, Btu utilization degree also can optimize further.
By reclaiming low-grade steam waste heat, both having realized remaining pick up the heat, the water-coal-slurry temperature after heating improves, energy
The required feed coal consumed of the Substitute For Partial combustion heat and oxygen；Improving the reduction of water-coal-slurry temperature simultaneously and can reduce viscosity, atomization is more
Good, improve fuel economy, improve efficiency of carbon con version, increase available gas productivity.
Summary of the invention
The purpose of this utility model is to provide a kind of waste heat recovery heating water-coal-slurry for coal gasification apparatus, can utilize low
Grade steam waste heat, protection environment, moreover it is possible to improve water-coal-slurry temperature, reduce and consume, improve efficiency of carbon con version, reduce production cost,
With the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus, including water-coal-slurry storage tank, high-pressure coal pulp pump, bushing type
Heat exchanger, gasification furnace process burner, Low Pressure Flashing Column and oxygen-eliminating device, described water-coal-slurry storage tank is connected to high-pressure coal slurry by pipeline
The input of pump, the output end position of high-pressure coal pulp pump is installed double pipe heat exchanger, is all adopted between each section of double pipe heat exchanger
With hose connection；Described double pipe heat exchanger is connected to process burner and Low Pressure Flashing Column, dodges with low pressure at double pipe heat exchanger
Steam and steam control valve is installed between the connecting tube of tower；And connect upper oxygen-eliminating device；In the exit of high-pressure coal pulp pump, bushing type is set
Heat exchanger and oxygen-eliminating device UNICOM, arrange condensation water valve on the steam condensate (SC) pipe of UNICOM.
As further program of the utility model: the high-pressure coal slurry conveyance conduit in described high-pressure coal pulp pump exit is installed
Multistage double pipe heat exchanger, double pipe heat exchanger is until gasification furnace process burner.
As further program of the utility model: the water-coal-slurry in described water-coal-slurry storage tank through water-coal slurry pump pressure-raising,
Entering double pipe heat exchanger and carry out heat exchange heating, the water-coal-slurry after heating enters gasification furnace by process burner and gasifies.
Described flexible pipe is metal hose.
Compared with prior art, this utility model beneficial effect:
(1) this waste heat recovery heating water-coal-slurry is for coal gasification apparatus, it is possible to the low-grade steam waste heat of efficient recovery system,
It is allowed to be liquefied as condensed water, for system water supplement;
(2) this waste heat recovery heating water-coal-slurry is for coal gasification apparatus, is used for heating water-coal-slurry and instead of partial gasification stove
The interior combustion heat, reduces coal consumption and oxygen consumption, has certain economic benefit；Water-coal-slurry temperature raises and reduces water-coal-slurry stickiness simultaneously,
Improve water-coal-slurry and enter atomizing effect after gasification furnace, improve coal conversion ratio, increase available gas composition；Steam after heat exchange
Condensing hot air furnace, to system oxygen-eliminating device moisturizing, reduces environment protection emission.
Accompanying drawing explanation
Fig. 1 is integrated connection schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Referring to Fig. 1, in this utility model embodiment, a kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus, bag
Include water-coal-slurry storage tank 1, high-pressure coal pulp pump 2, double pipe heat exchanger 4, gasification furnace process burner 6, Low Pressure Flashing Column 7 and oxygen-eliminating device 9,
Described water-coal-slurry storage tank 1 is connected to the input of high-pressure coal pulp pump 2 by pipeline, and the outfan of high-pressure coal pulp pump 2 passes through flexible pipe 5
It is connected on double pipe heat exchanger 4, all uses flexible pipe 5 to connect between each section of double pipe heat exchanger 4；High-pressure coal pulp pump 2 exports
The high-pressure coal slurry conveyance conduit 3 at place installs multistage double pipe heat exchanger 4, and double pipe heat exchanger 4 is until gasification furnace process burner 6；
Described double pipe heat exchanger 4 is connected to gasification furnace process burner 6 and Low Pressure Flashing Column 7, at double pipe heat exchanger 4 and low pressure flash
Steam control valve 8 is installed, at the low-grade steam autopneumatolysis stove process burner 6 of Low Pressure Flashing Column 7 between the connecting tube 11 of tower 7
Double pipe heat exchanger 4 accesses, and installs steam control valve 8, it is simple to maintenance, and steam flows at double pipe heat exchanger 4 shell, with water
Coal slurry flows to reverse flow, is drawn by steam condensate (SC) at high-pressure coal pulp pump 2 exit double pipe heat exchanger 4；Water-coal-slurry storage tank 1
Interior water-coal-slurry, through high-pressure coal pulp pump 5 pressure-raising, enters double pipe heat exchanger 4 and carries out heat exchange heating, the water-coal-slurry after heating
Enter gasification furnace 13 by process burner 6 to gasify；Low-grade steam heat recovery: coal water slurry gasification Heisui River system is through too low
The low-grade steam that pressure flash distillation is reclaimed, cannot the most effectively utilize in System steam balances, and can only do emptying and processes or deliver to
The tank of oxygen-eliminating device 9 is used as system water supplement, by heat exchange for heating and gasifying stove 13 feed water coal slurry, it is to avoid heat waste；?
Oxygen-eliminating device 9 it is also connected with in connecting tube 11；Double pipe heat exchanger 4 and oxygen-eliminating device 9 UNICOM are set in the exit of high-pressure coal pulp pump 2,
Arranging condensation water valve 10 on the steam condensate (SC) pipe 12 of UNICOM, condensed water is used for system water supplement, forms loop.
Wherein, flexible pipe 5 is metal hose.
Reduce coal consumption and oxygen consumption: the water-coal-slurry temperature after heating improves, the combustion heat in meeting Substitute For Partial gasification furnace 13, reduces
Thermal loss in gasification, thus reduces coal consumption and oxygen consumption；Water under high pressure coal slurry temperature raises and can reduce water-coal-slurry simultaneously
Viscosity, water-coal-slurry can obtain less slurry by atomization after process burner and drip, improve fuel economy, improve efficiency of carbon con version,
Increase available gas productivity.
Utilize said apparatus to carry out the coal gasification process of water-coal-slurry heating, concretely comprise the following steps:
The most low-grade steam heat recovery utilizes process
The low-grade steam gone out from Low Pressure Flashing Column 7, in UNICOM to double pipe heat exchanger 4, by with double pipe heat exchanger 4
Carry out heat exchange with the water-coal-slurry in high-pressure coal slurry pipeline 3, complete the heat recovery of low-grade steam;
2. water-coal-slurry heating process
Water-coal-slurry in water-coal-slurry storage tank 1, through high-pressure coal pulp pump 5 pressure-raising, enters double pipe heat exchanger 4 and carries out heat exchange
Heating, the water-coal-slurry after heating enters gasification furnace 13 by process burner 6 and gasifies.
Claims (4)
1. waste heat recovery heating water-coal-slurry is for a coal gasification apparatus, including water-coal-slurry storage tank (1), high-pressure coal pulp pump (2), set
Pipe heat exchanger (4), gasification furnace process burner (6), Low Pressure Flashing Column (7) and oxygen-eliminating device (9), it is characterised in that: described water coal
Slurry storage tank (1) is connected to the input of high-pressure coal pulp pump (2) by pipeline, and the outfan of high-pressure coal pulp pump (2) passes through flexible pipe (5)
It is connected on double pipe heat exchanger (4), all uses flexible pipe (5) to connect between each section of double pipe heat exchanger (4)；Described bushing type
Heat exchanger (4) is connected to gasification furnace process burner (6) and Low Pressure Flashing Column (7), at double pipe heat exchanger (4) and Low Pressure Flashing Column
(7) steam control valve (8) is installed between connecting tube (11)；It is also connected with oxygen-eliminating device (9) in connecting tube (11)；At high-pressure coal pulp pump
(2) exit arranges double pipe heat exchanger (4) and oxygen-eliminating device (9) UNICOM, the upper setting of steam condensate (SC) pipe (12) in UNICOM
Condensation water valve (10).
A kind of waste heat recovery heating water-coal-slurry the most according to claim 1 is for coal gasification apparatus, it is characterised in that: described
The high-pressure coal slurry conveyance conduit (3) in high-pressure coal pulp pump (2) exit installs multistage double pipe heat exchanger (4), double pipe heat exchanger
(4) until gasification furnace process burner (6).
A kind of waste heat recovery heating water-coal-slurry the most according to claim 1 is for coal gasification apparatus, it is characterised in that: described
Water-coal-slurry in water-coal-slurry storage tank (1) carries out heat exchange add through high-pressure coal pulp pump (5) pressure-raising, entrance double pipe heat exchanger (4)
Heat, the water-coal-slurry after heating enters gasification furnace (13) by process burner (6) and gasifies.
A kind of waste heat recovery heating water-coal-slurry the most according to claim 1 is for coal gasification apparatus, it is characterised in that: described
Flexible pipe (5) is metal hose.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820994.6U CN205856407U (en) | 2016-08-01 | 2016-08-01 | A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620820994.6U CN205856407U (en) | 2016-08-01 | 2016-08-01 | A kind of waste heat recovery heating water-coal-slurry is for coal gasification apparatus |
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| CN205856407U true CN205856407U (en) | 2017-01-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054904A (en) * | 2018-08-28 | 2018-12-21 | 昆山优利德能源技术有限公司 | The Heisui River heating coal water slurry gasification system and technique of heat exchange without phase-change |
| CN109722312A (en) * | 2019-02-27 | 2019-05-07 | 中煤陕西榆林能源化工有限公司 | A kind of method of low energy consumption coal water slurry gasification system and heating water-coal-slurry |
| CN111188594A (en) * | 2020-02-22 | 2020-05-22 | 太原理工大学 | Old goaf coal slime water gas-liquid fluidized mining device and method |
-
2016
- 2016-08-01 CN CN201620820994.6U patent/CN205856407U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109054904A (en) * | 2018-08-28 | 2018-12-21 | 昆山优利德能源技术有限公司 | The Heisui River heating coal water slurry gasification system and technique of heat exchange without phase-change |
| CN109722312A (en) * | 2019-02-27 | 2019-05-07 | 中煤陕西榆林能源化工有限公司 | A kind of method of low energy consumption coal water slurry gasification system and heating water-coal-slurry |
| CN111188594A (en) * | 2020-02-22 | 2020-05-22 | 太原理工大学 | Old goaf coal slime water gas-liquid fluidized mining device and method |
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