CN103484168A - Split combined type high-temperature gas washing cooling device - Google Patents

Split combined type high-temperature gas washing cooling device Download PDF

Info

Publication number
CN103484168A
CN103484168A CN201310467291.0A CN201310467291A CN103484168A CN 103484168 A CN103484168 A CN 103484168A CN 201310467291 A CN201310467291 A CN 201310467291A CN 103484168 A CN103484168 A CN 103484168A
Authority
CN
China
Prior art keywords
gas
housing
wash cooling
cooling device
shell
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.)
Granted
Application number
CN201310467291.0A
Other languages
Chinese (zh)
Other versions
CN103484168B (en
Inventor
王亦飞
于广锁
龚欣
王辅臣
刘海峰
许建良
李伟锋
周志杰
代正华
郭庆华
陈雪莉
梁钦锋
郭晓镭
王兴军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI YINENG GAS TECHNOLOGY Co Ltd
East China University of Science and Technology
Original Assignee
SHANGHAI YINENG GAS TECHNOLOGY Co Ltd
East China University of Science and Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI YINENG GAS TECHNOLOGY Co Ltd, East China University of Science and Technology filed Critical SHANGHAI YINENG GAS TECHNOLOGY Co Ltd
Priority to CN201310467291.0A priority Critical patent/CN103484168B/en
Publication of CN103484168A publication Critical patent/CN103484168A/en
Application granted granted Critical
Publication of CN103484168B publication Critical patent/CN103484168B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]

Landscapes

  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

The invention provides a split combined type high-temperature gas washing cooling device, which comprises a first shell and a second shell. The first shell is provided with a discharge port and a first black water outlet. The lower part of the second shell is provided with a gas introduction pipe, which is connected to the discharge port. The upper part of the gas introduction pipe is equipped with a gas distributor, which is disposed in a liquid pool inside the second shell. The second shell is also internally provided with a combined bubble splitter. The upper part of the second shell is provided with a washing water inlet, one end of which is communicated with the first black water outlet and the other end of which is in connection with a liquid water distribution trough. The upper lateral side of the second shell is provided with a gas outlet. By coupling the spray flow of vertical falling film, pressure atomization and bubbling processes, the heat and mass transfer effects can be enhanced more effectively, the crude synthetic gas washing and cooling efficiency can be enhanced, the slag block emergence possibility of equipment can be reduced, and the equipment investment cost can be lowered.

Description

Separate assembling high-temperature gas wash cooling device
Technical field
The present invention be more particularly directed to a kind of separate assembling high-temperature gas wash cooling device.
Background technology
Vapourizing furnace is multiplex in the thick synthetic gas of processing, and described thick synthetic gas is produced by hydrocarbon polymers such as coal, Sweet natural gas, shale gas, refinery coke, biomass, mud, with H 2, CO, CO 2for the main body component, its general pressure is 0.2~12MPa, and temperature is 1000~1800 ℃.Contain lime-ash in coal gas, its dry gas composition CO and H 2be 75~94%, CO 2be 2~23%, N 2, Ar, H 2s, COS, NH 3, HCl, CH 4, HCN, HCOOH etc. are 3~5%.
For by synthetic gas for the production of industrial circles such as the chemical industry such as synthetic ammonia, methyl alcohol, oil product, alkene, combined cycle generation (IGCC), metallurgical industry (direct reduction iron making), must be first to its washing, remove lime-ash and the flying dust wherein carried secretly.
At gasification field high-temperature gas, process at present be most widely used, technology is the most ripe is chilling process, this flow process is washed the thick synthetic gas of high temperature with systemic circulation Heisui River, can reach preferably cooling, wash the effect of ash and slagging-off, guarantee the normal operation of follow-up workshop section, the general and vaporizer of scrubbing-cooling chamber (or claim shock chamber) forms the vapourizing furnace main body jointly.
The shock chamber that the Coal Gasification Technology of some introductions adopts in operational process, the problem such as synthetic gas liquid entrainment, the bed liquid level that the vapourizing furnace outlet often occurs leaving is unstable, solid phase lime-ash washing effect is poor.The Chinese patent that the patent No. is 01112880.1 and 01112702.3 discloses a kind of novel scrubbing-cooling chamber, a kind of multiple-hearth type that this structure adopts trickle bed to combine with bubbling bed, utilize the spray of fluid to flow and reach gas-liquid-solid three-phase caloic transmittance process simultaneously with the bubbling motion, according to the fluid flow feature, the scrubbing-cooling chamber bed can be divided into gas and liquid flowing district, bubbling area, liquid-solid separating region and gas-liquid separation zone etc., and the primary member of scrubbing-cooling chamber has wash cooling water distribution ring, scrubbing-cooling tube and division plate etc.
This scrubbing-cooling chamber has been successfully applied on domestic and international more than 30 enterprises more than 90 platform vapourizing furnaces at present.But along with coal for gasification has towards the trend of using the poor coal of high ash content, high ash melting point or slag viscosity-temperature characteristics, such coal mobility at high temperature is poor and be acted upon by temperature changes large, use existing downtake or wash cooling tubular construction, the probability increase of stifled slag in cinder notch or pipe occurs in actual mechanical process, cause the bias current of high-temperature gas and affect the long-term operation of device.
In addition, for completed the wash cooling of high-temperature gas by a housing, because the gas that leaves housing will reach the gas-liquid phase equilibrium state, and be not with the solid lime-ash in gas phase, therefore to guarantee that high-temperature gas and wash cooling water have a relatively long duration of contact, could realize the desired wash cooling effect of technique, this just certainly will cause the length of airway longer.
Summary of the invention
The present invention is for the probability that overcomes stifled slag in cinder notch in prior art or pipe is higher, causes the high-temperature gas bias current then to affect the long-term operation of device, and the defect such as facility investment expense height, and a kind of separate assembling high-temperature gas wash cooling device is provided.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of separate assembling high-temperature gas wash cooling device, its characteristics are, it comprises one first housing and one second housing, the top of this first housing is provided with one through washing the gas purging mouth after lowering the temperature, the bottom of this first housing is provided with one for discharging the first Heisui River outlet in Heisui River, the bottom of this second housing is provided with one for receiving the gas introduction tube of the gas that this first housing derives, this gas introduction tube is connected with this discharge outlet, the top of this gas introduction tube is provided with a gas distributor, and this gas distributor deeply is arranged on the liquid pool of this second enclosure interior, also be provided with a built-up type bubble dispenser in this second housing, this the second housing top is provided with a washing water inlet, this washing water inlet one end is communicated with this first Heisui River outlet, the other end of this washing water inlet is connected with a liquid water distributing slot, this the second housing upper side is provided with a pneumatic outlet, for discharging the crude synthesis gas through overcooling and washing.
Preferably, the top of this first housing is provided with one for receiving the opening of waiting to wash cooling high-temperature gas, be provided with an airway at the middle part of this first housing, the entrance of this airway and this gap butt, and be provided with a wash cooling water distribution ring in the position of docking, the below of this first housing is provided with a static broken slag device, the surrounding of this first housing be provided with some for to this first enclosure interior water spray to reduce the pressure atomizer of cooling gas temperature to be washed, this pressure atomizer comprises a body, this body is provided with the interface be communicated with the water source of wash cooling water, be provided with the inducer of an annular in this body, the front end of the inducer that this is annular is provided with a shower nozzle, this shower nozzle points to the outlet of this airway.
Preferably, this built-up type bubble dispenser is horizontally disposed with, the position indentation that the lower end of this built-up type bubble dispenser contacts with bubble or grid-like.
Preferably, the diameter of this second housing is D, and in this second housing, the height of liquid pool top is H, and the value of H/D is 0.5~3.
Preferably, in this gas introduction tube, the flow velocity of gas is 5m/s~30m/s.
Preferably, in this second housing, the void tower flow velocity of gas is 0.1~5m/s, and the residence time of gas in this second housing is 10~60s.
Preferably, in this second housing, the void tower flow velocity of gas is 0.1~2m/s, and the residence time of gas in this second housing is 20~40s.
Preferably, the bottom of this second housing is provided with one second Heisui River outlet, for discharging Heisui River.
Preferably, the length of this airway is 0.2m~2m, and the flow velocity of the gas in this airway is 2m/s~10m/s; The flow rate of liquid in the exit of this wash cooling water distribution ring is 0.5m/s~5m/s.
Wherein, this first housing is by 11/4Cr-1/2Mo (SA387Gr11Cl2) built-up welding AISI316L (being equivalent to domestic CoCr17Ni13Mo2) or compound 316L, and this washing water distribution rings, airway adopt Incoloy825; The second housing adopts the compound 316L material of carbon steel (16MnR), and this built-up type bubble dispenser adopts stainless steel.
Be provided with some diversion trenchs at this on annular inducer, all from this, the inner ring of annular inducer extends to outer ring described diversion trench, described diversion trench is all tangent with this inner ring and form tilt distribution in the same way, this diversion trench is communicated with this interface with this shower nozzle, wash cooling water is injected in this first housing through this interface, described diversion trench and nozzle rear-spraying.
This pressure atomizer is the axis distribution in a center of symmetry of this first housing relatively.
The axis of this pressure atomizer flushes with the outlet of this airway.
The inwall that is pasting this first housing is provided with an overflow water chuck, this overflow water chuck is positioned at the top of this pressure atomizer, this overflow water chuck comprises a water-in and the water outlet be connected with the water source of wash cooling water, this water-in is positioned at the bottom of this overflow water chuck, and this water outlet is positioned at the top of this overflow water chuck.
The top of this first housing also is provided with the washing unit of a back up pad for the top of cleaning this first housing, and this washing unit comprises that one is arranged on the cleaning medium entrance on this first housing, and the outlet of the cleaning medium of some these back up pads of sensing.
This washing unit is an annular spray pipe, and this annular spray pipe is positioned at the top of this overflow water chuck.
The length of this airway is 0.2m~2m, and the flow velocity of the gas in this airway is 2m/s~6m/s; The flow rate of liquid in the exit of this wash cooling water distribution ring is 1.5m/s~3.5m/s.
The below of this static state broken slag device is provided with a liquid pool, and this liquid pool comprises an outlet of the deslagging for deslagging.
This wash cooling water distribution ring is the ring-shaped round pipe that a downside has annular slot, and on this ring-shaped round pipe, the inwall of the axis of this close ring-shaped round pipe also is provided with some spray apertures.
The angular range of the medullary ray of all described spray apertures and the axis of this airway is 10 °~80 °.
The angular range of the medullary ray of all described spray apertures and the axis of this airway is 20 °~60 °.
Positive progressive effect of the present invention is: in separate assembling high-temperature gas wash cooling device of the present invention, containing the wash cooling water distribution ring that is used to form vertically moving membrane spray and central jet spray, the pressure atomizer that being used to form sprays clashes into and the gas distributor that is used to form even bubbling.By described spray flow, the coupling of pressure atomization and bubbling process, more effectively improve caloic transmission effect, the possibility of the stifled slag of minimizing equipment appearance, the anti-stifled ability of raising scrubbing-cooling chamber, strengthen the detersive efficiency of thick synthetic gas, solved because of the feed coal ash content is high and high temperature under coal ash viscosity is large etc. that institute causes the stifled slag problem in airway, the long-term operation of assurance device, extend the work-ing life of vapourizing furnace internals, reduce facility investment, avoid the generation of security incident.
The accompanying drawing explanation
The structural representation that Fig. 1 is the separate assembling high-temperature gas wash cooling device in a preferred embodiment of the present invention.
The sectional view that Fig. 2 is the pressure atomizer in Fig. 1.
The side-view that Fig. 3 is the pressure atomizer in Fig. 1.
The vertical view that Fig. 4 is the annular spray pipe in Fig. 1.
Fig. 5 is the A section enlarged view in Fig. 4.
The structural representation that Fig. 6 is a kind of bubble dispenser in a preferred embodiment of the present invention.
The structural representation that Fig. 7 is the another kind of bubble dispenser in a preferred embodiment of the present invention.
Description of reference numerals:
The static broken slag device 2 of the first housing 1
Pressure atomizer 3 bodies 31
Inducer 32 diversion trenchs 321
Shower nozzle 33 airways 4
Overflow water chuck 5 water outlets 501
Water-in 502 wash cooling water distribution rings 6
Annular slot 601 spray apertures 602
Distribution rings import 7 cleaning medium entrances 8
Annular spray pipe 9 cleaning medium outlets 901
Opening 10 pneumatic outlets 11
Baffle 12 liquid pools 13
Washing water export 14 washing water pipelines 15
Gas transport pipeline 16 second housings 17
Washing water inlet 18 water distribution grooves 19
Gas-liquid separation space 20 built-up type bubble dispensers 21
Liquid pool 22 gas introduction tubes 23
Gas distributor 24 Heisui River outlets 25
Export 26 baffles 27
Embodiment
Mode below by embodiment further illustrates the present invention, but does not therefore limit the present invention among described scope of embodiments.
As shown in Figure 1, high-temperature gas wash cooling device in the present embodiment comprises one first housing 1 and one second housing 17, the top of this first housing 1 is provided with an opening 10 for receiving cooling gas to be washed, be provided with an airway 4 extended vertically downward in this first housing 1, the entrance of these airway 4 tops docks with opening 10, and being provided with a wash cooling water distribution ring 6 in the position of docking, the bottom of this first housing 1 is provided with static broken slag device 2.One pneumatic outlet 11 also is set above the first housing 1, also be provided with a baffle 12 in pneumatic outlet 11 sides, thereby the gas of pneumatic outlet side leaves the first housing in the baffling mode, by this baffling, flow, export the operative liquid water carried secretly in thick synthetic gas because of the variation realization of flow passage and separating of gas phase, reduce the droplet entrainment amount in the thick synthetic gas of outlet.The bottom of this second housing 17 is provided with one for receiving from the first housing 1 opening of comparatively high temps crude synthesis gas out, this opening upwards is connected to a gas introduction tube 23, the ingress pipe end has a gas distributor 24, can be tapered gas cap or other form gas distributors of rising, top one side of the second housing 17 has the outlet 26 of the gas after the washing of drawing, after gas enters by this outlet, an operation is carried out washing and the purification of the degree of depth, the same, before outlet 26, also is provided with a baffle 27.The second housing 17 top opposite sides have a receiving to draw the washing water inlet 18 from the first housing 1, this entrance is connected with a water distribution groove 19, the bottom of the second housing is provided with a Heisui River outlet 25, held from the slag inclusion Heisui River of the lime-ash in gas phase and left the wash cooling system from this outlet, entered the Treatment for Reuse that the pulp water treatment system is carried out water.Occur the phenomenons such as turbulent, bubble coalescence when being present in the liquid pool 22 in the second housing for preventing and reducing gas, be provided with some layers of built-up type bubble dispenser 21, flowing of liquid phase main body in bed also stablized in the existence of bubble dispenser simultaneously.
In the surrounding of the first housing 1, be provided with some for to the pressure atomizer 3 of the first housing 1 internal spray water smoke to reduce cooling gas temperature to be washed.Comprise four pressure atomizer 3 in the present embodiment, and the injection direction of all pressure atomizer 3 all points to the axis of this airway 4, and flush with the outlet of airway 4.
Under regard to above-mentioned pressure atomizer and be described further, for convenience of explanation and understand, hereinafter will be decided to be along the direction of atomized water spray " front end " of pressure atomizer.
As shown in Figures 2 and 3, this pressure atomizer 3 comprises that respectively one is arranged on the body 31 on the first housing 1 sidewall, be provided with the interface be communicated with the water source of wash cooling water on body 31, the inwall of this interface is provided with internal thread so that spin with the pipeline (not shown) at wash cooling water water source.Be provided with the inducer 32 of an annular in body 31, the front end of inducer 32 is provided with a shower nozzle 33, and in setting pressure spraying gun 3, the shower nozzle 33 of pressure atomizer 3 points to the outlet of this airway 4, and flushes with described outlet.
In addition, be provided with some diversion trenchs 321 on inducer 32, described diversion trench 321 all extends to outer ring from the inner ring of this inducer 32, and described diversion trench 321 is all tangent with this inner ring, and this diversion trench 321 is communicated with this interface with shower nozzle 33; Wash cooling water is spurted in this first housing 1 after this interface, described diversion trench 321 and shower nozzle 33.Under High Pressure, by the guiding of tangential diversion trench 321, wash cooling water enters shower nozzle 33 with becoming the whirlpool shape, and under the effect of inertia, becomes the whirlpool shape to eject.Wash cooling water, after pressure atomizer 3 atomizations, sprays and to enter the first housing 1, with the still thick synthetic gas in higher temperatures out directly contacts from airway 4, caloic transmittance process simultaneously further occurs.In addition, comparatively high temps thick the synthetic gas further cooling and washing of the atomizing droplet formed by this pressure atomizer to airway 4 exits.
Again as shown in Figure 1, the ring-shaped round pipe that the wash cooling water distribution ring 6 in the present embodiment has an annular slot 601 for downside is provided with the distribution rings import 7 that several are connected with the water source of wash cooling water on the first housing 1.Also be provided with some spray apertures 602 on the inwall of the axis of pointing to this ring-shaped round pipe.The angular range of the axis of the medullary ray of described spray apertures 602 and this airway 4 can be 10 °~80 °, preferably can be 20 °~60 °, and in the present embodiment, the angle angle of selection is 30 °.Wash cooling water is from this annular slot 601 and spray apertures 602 ejections, forming respectively the vertically moving membrane mobile along these airway 4 inwalls and central jet flows, spraying cooling is carried out in periphery and the center of the gas column of the thick synthetic gas body that enters airway 4 simultaneously, make gas temperature be able to rapid drawdown, wash cooling water is vaporized and produces the humidification effect simultaneously, and what is more important has alleviated the thermal load of scrubbing-cooling tube top liquid film.
Also be provided with an overflow water chuck 5 for the protection of the first housing 1 inwall on the top of the first housing 1 inwall; this overflow water chuck 5 has a water-in 502 and a water outlet 501; this water-in 502 is positioned at the bottom of this overflow water chuck, and this water outlet 501 is positioned at the top of this overflow water chuck.
Position in vapourizing furnace and the first housing boundary is provided with a back up pad, and because high-temperature gas has the mobile characteristic that makes progress, therefore thick synthetic gas can, with this back up pads of contact such as a large amount of dusts, cause the back up pad dust stratification serious.Therefore, also be provided with one for cleaning the washing unit of this back up pad on the top of the first housing 1, in the present embodiment, this washing unit is an annular spray pipe 9, this annular spray pipe 9 comprises the cleaning medium entrance 8 be arranged on the first housing 1, and the cleaning medium outlet 901 that upwards points to back up pad.
Again as shown in Figure 1, position indentation or grid type that in the present embodiment, built-up type bubble dispenser 21 lower ends contact with up bubble, its array configuration can be changeable, integral body is placed with the HORIZONTAL PLAID form, for convenience of maintenance, can also be the composite module form, as shown in Figures 6 and 7.
In the present embodiment, because the Main Function of the first housing is to realize quenching, washing mainly completes at the second housing, therefore airway length can be shortened greatly, as long as its high temperature section enthalpy falls in gas phase.5~8m that the length of airway 4 is generally adopted from existing full scale plant, be reduced to 0.5 present~2m, pressure atomization in conjunction with liquid phase, can guarantee that the slag inclusion synthetic gas obtains sharply cooling the time greatly reducing slag and solidifies and stifled slag occurs in airway, cause the gas bias current, the washing water film skewness, the probability of scaling loss thereby the reduction airway may be heated, reduce the outfit of equipment height of the first housing, and the second housing arranged in the present embodiment, its metal shell can adopt the compound 316L material of carbon steel (16MnR), and the whole housing of industrial scrubbing-cooling chamber is all by 11/4Cr-1/2Mo (SA387Gr11Cl2) built-up welding AISI316L (being equivalent to domestic CoCr17Ni13Mo2) or compound 316L, the scrubbing-cooling tube of 5~8m (or claiming downtake) adopts Incoloy825, and in this example, needs to reduce to 0.2~2m by the airway length of Incoloy825 material.So this split type high-temperature gas wash cooling device when further promoting crude synthesis gas washing, cooling efficiency, greatly reduces the manufacturing cost of the preliminary washing of high-temperature wash and cooling device.
In the present embodiment, the internal diameter of the first housing 1 is 3400mm, virtual height 3000mm; Airway 4 internal diameter 1068mm are highly 1000mm.Described wash cooling water distribution ring 6 is 8mm along annular slot 601 width of inwall, and the diameter of spray apertures 602 is 8mm, 100 of quantity, and exporting average water speed is 1.5m/s~5m/s, preferably 2.4m/s.
The maximum inner diameter of the shower nozzle 33 of pressure atomizer 3 is 20mm, and minimum diameter is 3.8mm.The saliva speed that goes out of shower nozzle 33 is 9.8m/s, and four pressure atomizer are with 90 ° of symmetry arrangement, and its axial height exports concordant with airway 4.
Spout hole 901 diameters that are positioned at the annular spray pipe 9 of back up pad (not shown) below are 5mm, and quantity is 80, and the flow of cleaning medium entrance 8 is 20m 3/ h, the water speed of cleaning medium outlet is 3.5m/s.
The internal diameter of the second housing is 3000mm, virtual height 5000mm; Gas introduction tube internal diameter 464mm.The void tower superficial gas velocity of gas in the second housing is 1.5m/s~5m/s, and the gas speed in ingress pipe is 5-30m/s, preferably 10-20m/s.
The 1500 tons of Gas Flow bed gasification furnaces of day processing of take are example, and the thick synthetic gas pressure that enters scrubbing-cooling chamber is 6.5MPa, and temperature is 1300 ℃, and the dry gas flow is 115000Nm 3/ h, contain H in dry gas 2approximately 33%, CO approximately 49%, CO 2approximately 16%, also have CH 4, N 2, Ar, H 2s, COS, NH 3, HCl, HCN, HCOOH etc., account for 2%.Take dry gas as benchmark, and entering in the thick synthetic gas of the first housing 1 is 75g/Nm containing the grey quantity of slag 3(dry gas) is also lime-ash to be carried in thick synthetic gas and to enter the first housing 1 with 8.7 tons/hour.
The thick synthetic gas of above-mentioned high temperature enters airway 4 with the speed of 4.4m/s, and the temperature of wash cooling water is 250 ℃, and the wash cooling discharge that adds wash cooling water distribution ring is 310m 3/ h, amount of water is 2.2kg water/Nm 3gas, wash cooling water enters wash cooling water distribution ring 6 through the wash cooling water pump by four distribution rings imports 7, wash cooling water goes out water ring from annular slot 601 and spray apertures 602 with 2.4m/s speed, form vertically moving membrane and central jet at airway 4 inwalls, make coal gas reduces heat, humidification in airway 4, after in coal gas, entrained molten state lime-ash runs into wash cooling water, quenching solidifies, infiltrates, the lime-ash that the part granularity is less is carried (flying dust) by gas phase, all the other enter water and mix with water.
Approximately 900 ℃ of its temperature of coal gas after spraying cooling and humidification, carrying clinker water directly contacts with the droplet ejected from pressure atomizer 3 by the lower end of airway 4 is out rear, realize further cooling and humidification, after so preliminary cooling and washing process, the raw gas temperature is about 500 ℃, leave through gas transport pipeline 16 and enter the second housing from the first housing top, after gas distributor 24 is uniform, gas enters water-bath liquid phase bed with the form of bubbling, with washing water from the first housing again bubbling contact, guarantee that dusty gas is able to washing and further cooling fully, afterwards, flow through behind the gas-liquid separation space 20 on the second housing top, left the built-up type washing refrigerating unit of this example by outlet 26.Now in the thick synthetic gas of high temperature, 94% contained lime-ash has been realized and the separating of coal gas, and coal gas is substantially by steam-laden, and the washing water total evaporation is 162t/h, and the moisture content of coal gas is 1.71kg water vapour/Nm 3dry gas is also that dry gas and steam ratio are 1:1.71.
Wash cooling water and most of particle diameter > the small grain size lime-ash of 3mm entering in the space consisted of airway 4 and the first housing 1, the solid phase that particle diameter is greater than the grid space of static broken slag device 2 is blocked, fragmentation, fall into afterwards the liquid pool 13 that is arranged in the first housing 1 below, wherein lime-ash sedimentation regularly discharge vapourizing furnace through lock hopper under action of gravity.The evaporation of part wash cooling water enters gas phase, a part enters lock hopper together with lime-ash, most of washing water are through the washing water outlet 14 of the first lower housing portion, entered the washing water inlet 18 on the second housing top by washing water pipeline 15, after water distribution groove 19 distributes, be sprayed in the second housing and enter the liquid pool 22 be present in the second housing, the water after last 92t/h wash cooling gas is delivered to downstream pulp water treatment system from the second lower housing portion Heisui River outlet 25 and is processed, with cyclically utilizing and discharge.
Although more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is limited by appended claims.Those skilled in the art, under the prerequisite that does not deviate from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these changes and modification all fall into protection scope of the present invention.

Claims (9)

1. a separate assembling high-temperature gas wash cooling device, it is characterized in that, it comprises one first housing and one second housing, the top of this first housing is provided with one through washing the gas purging mouth after lowering the temperature, the bottom of this first housing is provided with one for discharging the first Heisui River outlet in Heisui River, the bottom of this second housing is provided with one for receiving the gas introduction tube of the gas that this first housing derives, this gas introduction tube is connected with this discharge outlet, the top of this gas introduction tube is provided with a gas distributor, and this gas distributor deeply is arranged on the liquid pool of this second enclosure interior, also be provided with a built-up type bubble dispenser in this second housing, this the second housing top is provided with a washing water inlet, this washing water inlet one end is communicated with this first Heisui River outlet, the other end of this washing water inlet is connected with a liquid water distributing slot, this the second housing upper side is provided with a pneumatic outlet, for discharging the crude synthesis gas through overcooling and washing.
2. separate assembling high-temperature gas wash cooling device as claimed in claim 1, it is characterized in that, the top of this first housing is provided with one for receiving the opening of waiting to wash cooling high-temperature gas, be provided with an airway at the middle part of this first housing, the entrance of this airway and this gap butt, and be provided with a wash cooling water distribution ring in the position of docking, the below of this first housing is provided with a static broken slag device, the surrounding of this first housing be provided with some for to this first enclosure interior water spray to reduce the pressure atomizer of cooling gas temperature to be washed, this pressure atomizer comprises a body, this body is provided with the interface be communicated with the water source of wash cooling water, be provided with the inducer of an annular in this body, the front end of the inducer that this is annular is provided with a shower nozzle, this shower nozzle points to the outlet of this airway.
3. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, this built-up type bubble dispenser is horizontally disposed with, the position indentation that the lower end of this built-up type bubble dispenser contacts with bubble or grid-like.
4. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, the diameter of this second housing is D, and in this second housing, the height of liquid pool top is H, and the value of H/D is 0.5~3.
5. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, in this gas introduction tube, the flow velocity of gas is 5m/s~30m/s.
6. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, in this second housing, the void tower flow velocity of gas is 0.1~5m/s, and the residence time of gas in this second housing is 10~60s.
7. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, in this second housing, the void tower flow velocity of gas is 0.1~2m/s, and the residence time of gas in this second housing is 20~40s.
8. separate assembling high-temperature gas wash cooling device as claimed in claim 1, is characterized in that, the bottom of this second housing is provided with one second Heisui River outlet, for discharging Heisui River.
9. separate assembling high-temperature gas wash cooling device as claimed in claim 2, is characterized in that, the length of this airway is 0.2m~2m, and the flow velocity of the gas in this airway is 2m/s~10m/s; The flow rate of liquid in the exit of this wash cooling water distribution ring is 0.5m/s~5m/s.
CN201310467291.0A 2013-10-09 2013-10-09 Split combined type high-temperature gas washing cooling device Active CN103484168B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310467291.0A CN103484168B (en) 2013-10-09 2013-10-09 Split combined type high-temperature gas washing cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310467291.0A CN103484168B (en) 2013-10-09 2013-10-09 Split combined type high-temperature gas washing cooling device

Publications (2)

Publication Number Publication Date
CN103484168A true CN103484168A (en) 2014-01-01
CN103484168B CN103484168B (en) 2015-01-07

Family

ID=49824776

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310467291.0A Active CN103484168B (en) 2013-10-09 2013-10-09 Split combined type high-temperature gas washing cooling device

Country Status (1)

Country Link
CN (1) CN103484168B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105754664A (en) * 2015-01-05 2016-07-13 通用电气公司 Quench Chamber With Integrated Scrubber System
CN108913221A (en) * 2018-06-27 2018-11-30 陕西延长石油(集团)有限责任公司 A kind of oil-containing dusty gas chilling device and method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735857A (en) * 2008-11-06 2010-06-16 新疆天业(集团)有限公司 High-temperature carbon conversion reaction gas quenching device
CN102140372A (en) * 2011-02-23 2011-08-03 惠生工程(中国)有限公司 High-temperature crude synthesis gas chilling device
CN203545958U (en) * 2013-10-09 2014-04-16 华东理工大学 Split combination type high-temperature gas washing and cooling device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101735857A (en) * 2008-11-06 2010-06-16 新疆天业(集团)有限公司 High-temperature carbon conversion reaction gas quenching device
CN102140372A (en) * 2011-02-23 2011-08-03 惠生工程(中国)有限公司 High-temperature crude synthesis gas chilling device
CN203545958U (en) * 2013-10-09 2014-04-16 华东理工大学 Split combination type high-temperature gas washing and cooling device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105754664A (en) * 2015-01-05 2016-07-13 通用电气公司 Quench Chamber With Integrated Scrubber System
CN108913221A (en) * 2018-06-27 2018-11-30 陕西延长石油(集团)有限责任公司 A kind of oil-containing dusty gas chilling device and method
CN108913221B (en) * 2018-06-27 2020-10-09 陕西延长石油(集团)有限责任公司 Oil-containing and dust-containing gas quenching device and method

Also Published As

Publication number Publication date
CN103484168B (en) 2015-01-07

Similar Documents

Publication Publication Date Title
JP5535912B2 (en) Quenching vessel
US8444061B2 (en) Spray nozzle manifold
CA2698909C (en) Process and device for treating charged hot gas
CN101945978A (en) Be used to cool off and wash the device and the assembly method of synthetic air
CN103232863B (en) High-temperature gas washing and cooling device
CN110846083A (en) Gasifier chilling chamber containing guide cylinder and using method thereof
CN101285005A (en) Gasification process of water/gas mixed full-chilled dry powder fuel and device
CN103484168B (en) Split combined type high-temperature gas washing cooling device
CN204455022U (en) Slag circulation of vital energy in the wrong direction flowing water Quench vapourizing furnace
CN204298346U (en) A kind of dry coal dust gasification furnace
CN203545958U (en) Split combination type high-temperature gas washing and cooling device
CN205133529U (en) High temperature gasification result quench transform purifier
CN203625322U (en) Gasifying device for multi-dimension spray of coal water slurry
CN203144355U (en) High-temperature gas washing and cooling device
CN107764079A (en) Gas cooling device, gasification furnace and method for gas cooling
CN104946314B (en) Multiple-effect fountain gasification furnace chilling device
CN203653506U (en) Gas cooling and scrubbing device
CN201785362U (en) Gasifying and quenching device
CN105255522B (en) High-temperature gasification product Quench converts purifier and its process
CN202786148U (en) Gasification furnace quenching rings
CN104673405A (en) Gas cooling washing device
CN207483682U (en) A kind of high-temperature crude synthesis gas cooling purifying device
CN102851081B (en) Graded-water-chilling coal water slurry or dry coal powder gasifier
CN103421545B (en) Multi-angle spraying water coal slurry gasification device
CN210237550U (en) Crude gas exhaust structure and crude gas washing system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant