CN205528634U - Synthetic gas refrigerated equipment - Google Patents
Synthetic gas refrigerated equipment Download PDFInfo
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- CN205528634U CN205528634U CN201620223689.9U CN201620223689U CN205528634U CN 205528634 U CN205528634 U CN 205528634U CN 201620223689 U CN201620223689 U CN 201620223689U CN 205528634 U CN205528634 U CN 205528634U
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- synthesis gas
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Abstract
The utility model provides a synthetic gas refrigerated equipment, the synthetic gas that carries the flying dust that is higher than the coal ash fusing point that produces through the gasifier tentatively lower the temperature to near ash fusion point through radiation waste boiler 4, lower the temperature to 700 DEG C through high temperature convection current waste boiler 900 DEG C, getting into low temperature convection current waste boiler, is the cooling to 300 DEG C 400 DEG C, through the cryogenic heat exchanger cooling to 200~300 degrees, arrange the nozzle that spouts into the decoking agent bottom radiation waste boiler, the decoking agent is passed through nozzle 3 and is got into radiation waste boiler, restraines the coking of high temperature convection current waste boiler entry, and low temperature convection current waste boiler enters the mouth and has arranged soot blower and knocker, guarantees waste boiler's continuous steady operation, the utility model discloses synthetic gas cooling process all is through the heat exchanger cooling, need not through quench coal gas or the cooling of quench water to the processing coal gas flow of greatly reduced waste boiler, dry process dust removal and washing unit reduces equipment size and cost, reduces the gasification equipment energy consumption.
Description
Technical field
This utility model belongs to coal preparing high-temp synthesis gas cooling technology field, is specifically related to one
High temperature is containing the equipment of ash synthesis gas cooling.
Background technology
When coal or other carbon-containing fuels, in the presence of oxygen or oxygen-containing gas, it is possible to occur
Gasification reaction, produces containing a large amount of carbon monoxides and hydrogen, and a small amount of carbon dioxide, nitrogen and
The synthesis gas of other gases, this synthesis gas can as the raw material of chemical industry, also can be as clearly
Clean fuel, or produce cleaning fuel, tool has been widely used.The most ripe coal gasification skill
Art can be divided into fixed bed, fluid bed and air flow bed three kinds, wherein air-flow according to Chemical Engineering feature
Bed gasification furnace is a kind of Quick-gasifying reaction, and pulverized coal particle, in gasification reactor, is in high temperature
Under the conditions of sufficient gas agent, it is possible to fast reaction generates synthesis gas.React at entrained flow gasification
During, all various types of inorganic substances contained by coal all can be left so that ash form-separating is surplus
Coming, owing to using slag tap technique, gasification furnace reaction zone temperature is higher than ash fusion point temperature, because of
This, the synthesis gas temperature that gasification furnace produces at about 1500 degree, the entrance upstream device carried
Ash particle exists in liquid form.
At the industries such as chemical industry, iron and steel, generating, the synthesis gas produced for gasification furnace, downstream is used
The synthesis gas temperature that family needs is room temperature, and therefore, high-temperature synthesis gas needs by certain method
Cool down with equipment, the requirement of downstream user can be met.The master of high-temperature nuclei air cooling at present
Stream method has two kinds, i.e. chilling technology and useless pot technique, and chilling technology is i.e. to export at gasification furnace
Spray into cold water, directly contact combination cooling, the heat of this process high-temperature synthesis gas with high-temperature synthesis gas
Amount is only used for heating cold water so that it is become steam, adds synthesis gas water content, and high temperature closes
The sensible heat becoming gas fails to make full use of, and there is the waste of energy, and the gasification furnace thermal efficiency is low.Useless pot
High-temperature nuclei temperature is i.e. reduced by technique by heat exchanger, and synthesis gas sensible heat is transferred to cooling
Water, produces middle pressure steam, this process makes full use sensible heat of synthesis gas, and by-product high-quality is steamed
Vapour.The most ripe useless pot technique has the useless pot heat recovering process of shell, and this technique is to gasify
The Quench coal gas hybrid cooling that the coal gas of high temperature of about 1500 degree of stove generation first returns with downstream
To 700～800 degree, then by the convection current pot that gives up, coal gas is cooled to 340 degree, enters through scrubbing tower
One step is cooled to about 170 degree, and major part sends battery limit (BL), and fraction, as Quench coal gas, returns
Return and mix with coal gas of high temperature.Shell technology Quench gas flow is that gasification furnace produces gas flow
1.2～1.4 times, therefore, give up the gas treatment of pot, dry method dust and wet scrubbing unit in downstream
Flow is big, and equipment investment is high, chill air compressor power consumption and investment height.In a word, current useless
Pot technique, coal gas of high temperature is difficult to reclaim with equipment at 1500 degree to 800 degree of interval heats, needs
Return air cooling by Quench coal gas, cause equipment investment and the high problem of energy consumption, this be due to
Coal gas of high temperature carries sticking ash, and the ash of viscosity is easily bonded on useless pot heating surface tube wall, stifled
The useless pot synthesis gas passage of plug causes.
Summary of the invention
For the problem overcoming above-mentioned prior art to exist, the purpose of this utility model is to provide one
Planting the equipment of synthesis gas cooling, synthesis gas temperature-fall period is all to be lowered the temperature by heat exchanger, it is not necessary to logical
Too drastic cooled coal gas or chilled water cooling, thus it is substantially reduced useless pot, dry method dust and washing unit
Gas treatment flow, reduce equipment size and cost, reduce gasification installation energy consumption.
The equipment of a kind of synthesis gas cooling, including the radiation waste pot 4 connected with gasification furnace 1, radiation
Useless pot 4 outlet high temperature convection current is given up pot 7 entrance, and the high temperature convection current pot 7 that gives up exports by conductive sections 8
Being sequentially communicated multiple low temperature convection current to give up pot, low temperature convection current is given up pot outlet cryogenic heat exchanger 13；
The nozzle 3 of the uniform multiple addition coke-removing agents of described radiation waste pot 4 bottom symmetrical；Described high temperature convection current
Useless pot 7 porch is disposed with the first soot blower 6；Described low temperature convection current pot porch of giving up is disposed with
Two soot blowers 10, are disposed with knocker 9 simultaneously.
Described gasification furnace 1, radiation waste pot the 4, first soot blower 6, high temperature convection current give up pot 7, conduction
Section 8, low temperature convection current give up pot and cryogenic heat exchanger 13 is placed in housing 2.
The equipment of described synthesis gas cooling is made by corrosion-and high-temp-resistant water pipe, and water pipe passes through
Working-medium water cools down.
Described radiation waste pot 4 is surrounded by water-cooling wall, and water-cooling wall surface is without refractory material, water-cooling wall
Cooling water is had in pipe.
Give up pot 7 of described high temperature convection current, for multilayer water cold wall coil pipe, has cooling water in water-cooling wall coil pipe.
The plurality of low temperature convection current pot that gives up is two, and the respectively first low temperature convection current is given up pot 11 and
Two low temperature convection current are given up pot 12.
Described gasification furnace 1 is cylindrical shape, and multiple coal dust burners are arranged in bottom, gasification reaction district.
The method that the equipment of synthesis gas described above cooling carries out synthesis gas cooling, including walking as follows
Rapid:
Step 1: the high-temperature synthesis gas that gasification furnace 1 produces tentatively is cooled to ash through radiation waste pot 4
Near fusing point；Synthesis gas and water-cooling wall carry out heat exchange, main heat exchange side in radiation waste pot
Formula is radiation heat transfer, has cooling water in water screen tube, absorbs the heat that synthesis gas radiates to water-cooling wall
Amount, produces middle pressure steam；
Step 2: synthesis gas is cooled to 700 DEG C-900 DEG C at the high temperature convection current pot 7 that gives up；High-temperature nuclei
Gas flows through in water-cooling wall coil pipe gap, carries out heat exchange with water-cooling wall, and main heat exchange mode is
Heat convection, has cooling water in water-cooling wall coil pipe, absorb the heat that synthesis gas radiates to water-cooling wall,
Produce middle pressure steam；Coke-removing agent enters in gasification furnace 1 by nozzle 3, changes synthesis gas and carries ash
Bonding characteristic, suppression is burnt to bond at useless pot entrance；When pot 7 entrance dust stratification is given up in high temperature convection current,
First soot blower 6 utilizes soot blowing working medium to be blown down by ash；
Step 3: be reduced to the synthesis gas of 800 degree and enter low temperature convection current through conductive sections 8 and give up pot, close
Gas is become to be cooled to 300 DEG C-400 DEG C at the low temperature convection current pot that gives up；
Step 4: synthesis gas is cooled to 200～300 degree further in cryogenic heat exchanger 13, low temperature
Heat exchanger 13 produces low pressure steam.
Described radiation waste pot 4, high temperature convection current give up pot 7 and low temperature convection current is given up, and pot shares identical soda pop
System, produces the middle pressure steam of same specification.
The most relatively, this utility model possesses following advantage:
The synthesis gas that gasification furnace produces reduces temperature by heat exchanger, it is not necessary to Quench coal gas or sharp
Chilled water system, heat recovery is abundant, and gasification furnace heating gas efficiency is high；System is simple, equipment chi
Very little relatively small, apparatus cost reduces；Radiation waste pot and the convection current pot that gives up is difficult to dust stratification, and equipment runs
Good stability；Using multi-stage heat exchanger, byproduct steam quality is high.
Accompanying drawing explanation
Fig. 1 is the apparatus sketch of synthesis gas cooling.
Detailed description of the invention
With detailed description of the invention, this utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of synthesis gas of this utility model cooling equipment, including with gasification furnace 1
The radiation waste pot 4,5 of connection is radiation waste pot water-cooling wall, radiation waste pot 4 outlet high temperature pair
Useless pot 7 entrance of stream, the high temperature convection current pot 7 that gives up exports and is sequentially communicated multiple low temperature pair by conductive sections 8
The useless pot of stream, low temperature convection current is given up pot outlet cryogenic heat exchanger 13；Bottom described radiation waste pot 4
The nozzle 3 of symmetrical uniform multiple addition coke-removing agents；Described high temperature convection current pot 7 porch of giving up is disposed with
First soot blower 6；Described low temperature convection current pot porch of giving up is disposed with the second soot blower 10, simultaneously
It is disposed with knocker 9.
The method that the equipment of this utility model synthesis gas cooling carries out synthesis gas cooling is specific as follows:
High-temperature nuclei temperature is reduced near ash fusion point by radiation waste pot 4.Radiation waste pot 4 be by
Water-cooling wall surrounds, and synthesis gas and water-cooling wall carry out heat exchange, main heat exchange in radiation waste pot
Mode is radiation heat transfer, and, without refractory material, there is cooling water on water-cooling wall surface in water screen tube, inhales
Receive the heat that synthesis gas radiates to water-cooling wall, produce middle pressure steam.
Synthesis gas temperature is reduced to 700 DEG C-900 DEG C by the high temperature convection current pot 7 that gives up.High temperature convection current is given up pot
Being disposed with multilayer water cold wall coil pipe on radiation waste pot top, high-temperature synthesis gas is between water-cooling wall coil pipe
Clearance flow mistake, carries out heat exchange with water-cooling wall, and main heat exchange mode is heat convection, water-cooling wall
There is cooling water in pipe, absorb the heat that synthesis gas radiates to water-cooling wall, produce middle pressure steam.For
Prevent high temperature convection current from giving up pot 7 entrance coking, have multiple nozzle 3 in radiation waste pot 4 lower disposed,
Coke-removing agent enters in gasification furnace by nozzle, changes synthesis gas and carries the bonding characteristic of ash, suppression
Burnt in useless pot entrance bonding.It is disposed with the first soot blower 6 at high temperature convection current pot 7 entrance that gives up simultaneously,
First soot blower 6 soot blowing working medium is steam, nitrogen or carbon dioxide, when convection current give up pot entrance amass
During ash, working medium is utilized to be blown down by ash.
It is reduced to the synthesis gas of 800 degree enter the first low temperature convection current through conductive sections 8 and give up pot 11 and
Two low temperature convection current are given up pot 12, and the low temperature convection current pot that gives up can divide and organizes layout more, is disposed with at useless pot entrance
Second soot blower 10, is disposed with knocker 9 simultaneously, it is ensured that useless pot does not occur dust stratification.Synthesis gas
Being cooled to 200～300 degree in cryogenic heat exchanger 13 further, cryogenic heat exchanger produces mesolow
Steam.
The gasification furnace of foregoing description is cylindrical shape, and multiple coal dust burners are arranged under gasification reaction district
Portion, coal gas is up leaves gasification reaction district, it is clear that may be used without the gasification furnace of other pattern.
Claims (7)
1. the equipment of a synthesis gas cooling, it is characterised in that: include the radiation connected with gasification furnace (1)
Useless pot (4), the high temperature convection current of radiation waste pot (4) outlet gives up pot (7) entrance, and high temperature convection current is given up pot (7)
Exporting and be sequentially communicated multiple low temperature convection current by conductive sections (8) and give up pot, low temperature convection current is given up pot outlet low temperature
Heat exchanger (13)；The nozzle (3) of the described uniform multiple addition coke-removing agents of radiation waste pot (4) bottom symmetrical；
Described high temperature convection current pot (7) porch of giving up is disposed with the first soot blower (6)；Described low temperature convection current is given up pot entrance
Place is disposed with the second soot blower (10), is disposed with knocker (9) simultaneously.
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: described gasification
Stove (1), radiation waste pot (4), the first soot blower (6), high temperature convection current give up pot (7), conductive sections (8),
Pot is given up in low temperature convection current and cryogenic heat exchanger (13) is placed in housing (2).
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: described synthesis
The equipment of air cooling is made by corrosion-and high-temp-resistant water pipe, and water pipe is cooled down by working-medium water.
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: described radiation
Useless pot (4) is surrounded by water-cooling wall, and, without refractory material, there is cooling water on water-cooling wall surface in water screen tube.
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: described high temperature
The convection current pot (7) that gives up is multilayer water cold wall coil pipe, has cooling water in water-cooling wall coil pipe.
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: the plurality of
The low temperature convection current pot that gives up is two, pot (11) is given up in the respectively first low temperature convection current and the second low temperature convection current is given up pot (12).
The equipment of a kind of synthesis gas the most according to claim 1 cooling, it is characterised in that: described gasification
Stove (1) is cylindrical shape, and multiple coal dust burners are arranged in bottom, gasification reaction district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620223689.9U CN205528634U (en) | 2016-03-22 | 2016-03-22 | Synthetic gas refrigerated equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620223689.9U CN205528634U (en) | 2016-03-22 | 2016-03-22 | Synthetic gas refrigerated equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205528634U true CN205528634U (en) | 2016-08-31 |
Family
ID=56784272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620223689.9U Expired - Fee Related CN205528634U (en) | 2016-03-22 | 2016-03-22 | Synthetic gas refrigerated equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205528634U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670708A (en) * | 2016-03-22 | 2016-06-15 | 胡志阳 | Equipment and method for cooling synthesized gas |
| CN109337718A (en) * | 2018-11-01 | 2019-02-15 | 浙江大学 | By the accumulatingdust slagging method for reducing negative pressuren zone negative pressure in gasification furnace radiation waste pot |
| CN109652143A (en) * | 2019-02-20 | 2019-04-19 | 宁夏神耀科技有限责任公司 | A kind of useless pot dry coal powder airflow bed structure of more burner uplink radiations |
-
2016
- 2016-03-22 CN CN201620223689.9U patent/CN205528634U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105670708A (en) * | 2016-03-22 | 2016-06-15 | 胡志阳 | Equipment and method for cooling synthesized gas |
| CN109337718A (en) * | 2018-11-01 | 2019-02-15 | 浙江大学 | By the accumulatingdust slagging method for reducing negative pressuren zone negative pressure in gasification furnace radiation waste pot |
| CN109337718B (en) * | 2018-11-01 | 2024-03-26 | 浙江大学 | Method for preventing dust accumulation and slag formation by reducing negative pressure of negative pressure area in gasification furnace radiation waste boiler |
| CN109652143A (en) * | 2019-02-20 | 2019-04-19 | 宁夏神耀科技有限责任公司 | A kind of useless pot dry coal powder airflow bed structure of more burner uplink radiations |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20190322 |
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| CF01 | Termination of patent right due to non-payment of annual fee |