CN108654350A - For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion - Google Patents
For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion Download PDFInfo
- Publication number
- CN108654350A CN108654350A CN201810539401.2A CN201810539401A CN108654350A CN 108654350 A CN108654350 A CN 108654350A CN 201810539401 A CN201810539401 A CN 201810539401A CN 108654350 A CN108654350 A CN 108654350A
- Authority
- CN
- China
- Prior art keywords
- gas
- coal gas
- dynamic equipment
- salt corrosion
- pipe
- 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.)
- Pending
Links
- 150000003839 salts Chemical class 0.000 title claims abstract description 89
- 239000003034 coal gas Substances 0.000 title claims abstract description 86
- 238000005260 corrosion Methods 0.000 title claims abstract description 42
- 230000007797 corrosion Effects 0.000 title claims abstract description 42
- 238000011033 desalting Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 105
- 238000010612 desalination reaction Methods 0.000 claims abstract description 57
- 239000003814 drug Substances 0.000 claims abstract description 45
- 239000007921 spray Substances 0.000 claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 44
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 32
- 235000013599 spices Nutrition 0.000 claims description 27
- 238000000889 atomisation Methods 0.000 claims description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 1
- 238000007711 solidification Methods 0.000 abstract description 10
- 230000008023 solidification Effects 0.000 abstract description 10
- 238000004458 analytical method Methods 0.000 abstract description 8
- 150000002500 ions Chemical class 0.000 description 16
- 238000011084 recovery Methods 0.000 description 14
- 238000002156 mixing Methods 0.000 description 9
- 239000003245 coal Substances 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 6
- 239000000428 dust Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000003628 erosive effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 230000002028 premature Effects 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005243 fluidization Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011002 quantification Methods 0.000 description 2
- -1 salt cation Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 210000000805 cytoplasm Anatomy 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000009688 liquid atomisation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/024—Dust removal by filtration
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
Abstract
The present invention provides a kind of coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion comprising：Feed pump, entrance are connected with water tank, and outlet is connected by delivery pipe with spray gun, the inclined gas pipe for being inserted in conveying coal gas of spray gun；Multiple magma cylinders, each magma cylinder interior energy are installed with a kind of desalination medicament, and multiple magma cylinders are connected by a solenoid valve with delivery pipe, and metering pump is equipped between solenoid valve and delivery pipe；Air jet pipe, entrance are connected with nitrogen gas tank, and outlet is connected with delivery pipe close to one end of spray gun.Energy selectivity of the invention cures the part ion in coal gas, in order to remove the ion after solidification in advance, avoids the generation analysis salt on the blade of dynamic equipment.
Description
Technical field
The present invention relates to coal gas technology field, specifically a kind of coal gas selectivity desalination for dynamic equipment blade salt corrosion
System and method.
Background technology
Dynamic equipment refer to have driving machine drive rotating machinery, as blast-furnace top gas recovery turbine generator turbine,
The pressuring machine etc. of coke-stove gas.Those dynamic equipment easily cause dynamic balancing unstability when applied to artificial coal gas, because blade analyses salt
Problem is illustrated by taking the turbine of blast-furnace top gas recovery turbine generator as an example below.
Blast-furnace top gas recovery turbine generator, abbreviation TRT (Blast Furnace Top Gas Recovery
Turbine Unit), it is a kind of power generator recycling blast furnace blower pressure potential and blast furnace gas kinetic energy using turbine,
It is the energy recycle device for the iron and steel enterprise's circular economy most worthy generally acknowledged in the world at present.
As a kind of industrial turbine machine, the working environment of TRT is far inferior to steam power plant's turbine, because blast furnace gas entrainment
Inorganic salts can be precipitated under specific physicochemical environment and be deposited on TRT movable vanes, and corrode TRT rotor blades, and TRT is caused to turn
Son loses dynamic balancing, and TRT rotor imbalance problems are the current maximum external environment factors for influencing TRT power generations.It is with power
For the TRT of 10000kW, blade needs every monthly repair primary, since movable vane overhauls, monthly loses about 1,620,000 kWh of electricity, seriously
Influence unit generation amount, and if overhaul after rotor fail to reach requirement for dynamic balance, air-flow enters the angle of rotor blade runner
The stagger angle of degree and blade forms the positive angle of shock, occurs boundary layer airflow separation and airflow reflux on blade non-working surface,
It can aggravate the abrasion of blade.
In existing boiler of power plant chemical cleaning system, is made up a prescription, is stirred by acid adding, pumped boiler and removed
Dirt, mainly for the alkaline composition of scale of boiler of power plant, such as carbonate, silicate or sulfate etc., what is be added is also molten
Solution property fabulous dilute hydrochloric acid, diluted hydrofluoric acid or dilute barium chloride solution etc., but it belongs to liquid scale removal, is not suitable for the leaf of TRT
Piece desalination.
In existing spray alkali chlorine removal system, be directly by a large amount of lye inject coal gas in, although can in coal gas
Acid ingredient fully react, but in coal gas high pressure section, the especially inlet blast-furnace top gas recovery turbine generator (TRT)
And be not suitable for, because a large amount of lye injections, heated carburation by evaporation can greatly increase operating mode tolerance, cause on instantaneous pressure and flow
It rises, larger fluctuation will produce for the stable operation of TRT, it is dangerous big to influence the dynamic balancing of TRT, moreover, a large amount of be added
Lye absorb the heat of high pressure gas, waste of energy reduces complex energy conversion ratio, influences TRT power generations, generating efficiency drop
It is low.
Invention content
The purpose of the present invention is to provide a kind of coal gas selectivity desalting system for dynamic equipment blade salt corrosion, energy
Selectivity cures the part ion in coal gas, in order to remove the ion after solidification in advance, avoids the blade in dynamic equipment
The upper erosion that analysis salt occurs and makes blade pair.
It is a further object of the present invention to provide a kind of coal gas selectivity desalination method for dynamic equipment blade salt corrosion,
Can be selective cure the part ion in coal gas, in order to remove the ion after solidification in advance, avoids the leaf in dynamic equipment
On piece occurs analysis salt and makes the erosion of blade pair.
Following technical proposal can be used to realize in the above-mentioned purpose of the present invention：
The present invention provides a kind of coal gas selectivity desalting system for dynamic equipment blade salt corrosion, wherein described to be directed to
The coal gas selectivity desalting system of dynamic equipment blade salt corrosion includes：Feed pump, entrance are connected with water tank, and outlet passes through defeated
Pipe is sent to be connected with spray gun, the inclined gas pipe for being inserted in conveying coal gas of the spray gun；Multiple magma cylinders, each magma cylinder
Interior energy is installed with a kind of desalination medicament, and multiple magma cylinders are connected by a solenoid valve with the delivery pipe, the solenoid valve with
Metering pump is equipped between the delivery pipe；Air jet pipe, entrance are connected with nitrogen gas tank, and outlet is with the delivery pipe close to described
One end of spray gun is connected.
In a preferred embodiment, the coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes
The outlet of one clear water cylinder, the clear water cylinder is connected with the solenoid valve.
In a preferred embodiment, the coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes
Controller, the controller are electrically connected with the metering pump, the feed pump and the solenoid valve.
In a preferred embodiment, the gas pipe is equipped with gas composition analyzer, the gas composition analyzer
Positioned at the upstream of the gas pipe and the spray gun joint, the gas composition analyzer is electrically connected with the controller.
In a preferred embodiment, the ejiction opening of the spray gun is located on the central axes of the gas pipe, the spray gun
The center line of ejiction opening have angle with the central axes shape of the gas pipe.
In a preferred embodiment, the angle is 65 degree~70 degree.
In a preferred embodiment, flowmeter is equipped between the metering pump and the delivery pipe, on the magma cylinder
Equipped with densitometer, the junction of the magma cylinder and the solenoid valve is equipped with pressure transmitter.
The present invention also provides a kind of coal gas selectivity desalination methods for dynamic equipment blade salt corrosion, wherein the needle
To moving the coal gas selectivity desalination method of equipment blade salt corrosion using as described above for the coal of dynamic equipment blade salt corrosion
Gas selectivity desalting system, the coal gas selectivity desalination method for dynamic equipment blade salt corrosion include the following steps：Step
Rapid a opens feed pump and metering pump, and water is conveyed from water tank to delivery pipe by the feed pump, by the metering pump by one
Desalination medicament in magma cylinder is conveyed through solenoid valve is quantitative to delivery pipe, and the water and desalination medicament in the delivery pipe are mixed into
Except salt spices liquid；Step b, it is described except salt spices liquid the nitrogen that air jet pipe input blow act under be atomized, the desalination medicine after atomization
After liquid enters spray gun, is sprayed into gas pipe by the spray gun and mixed with coal gas；Step c is repeated in above-mentioned steps a~step
Desalination medicament in remaining described magma cylinder is mixed into successively except atomization sprays into gas pipe after salt spices liquid by b.
In a preferred embodiment, further include step c0 between the step b and the step c, pass through the meter
Clear water in clear water cylinder is pumped into delivery pipe by amount pump through the solenoid valve.
In a preferred embodiment, it in the step a, is detected by the gas composition analyzer on the gas pipe
Gas composition simultaneously feeds back to controller, and the controller controls the solenoid valve, the feed pump according to the gas composition of detection
It is opened and closed with the metering pump.
The characteristics of present invention is for the coal gas selectivity desalting system and method for moving equipment blade salt corrosion and advantage are：
The present invention passes through the water in water supply pumping water tank, one magma cylinder of suction quantitative by metering pump, selective
Interior desalination medicament realizes desalination medicament and water being mixed into except salt spices liquid in delivery pipe quantification, passes through what air jet pipe sprayed into
Nitrogen is blown atomization to mixed desalination liquid, with by after atomization except salt spices liquid is sprayed into through spray gun in gas pipe, with coal
Endotracheal coal gas is had an effect, and is realized and is cured the easy salt-forming cation in part in coal gas, subsequent convenient for entering in coal gas
It is (i.e. inorganic that dynamic equipment filters out the ion after solidification by bag filter or cyclone dust collectors or electric dust-removing equipment etc. before
Salt), after avoiding purified coal gas from entering dynamic equipment (such as blast-furnace top gas recovery turbine generator, abbreviation TRT), those are easily
Salt-forming cation is precipitated on dynamic equipment (such as TRT) blade and corrodes blade, and then is impacted to dynamic balancing, ensure that dynamic
The long-term normal operation of equipment (such as TRT), generating efficiency is high, and service life is long, a little repair, moreover, passing through gas composition
The ingredient of coal gas in the gas pipe of analyzer detection, and result is fed back into controller, with the feedback knot received by controller
Fruit is turned on and off metering pump and feed pump, and selectively turns on solenoid valve, to choose the magma cylinder confession for filling suitable medicament
Time saving and energy saving to medicament, work efficiency is high.
Description of the drawings
The following drawings is only intended in doing schematical explanation and illustration to the present invention, not to limit the present invention model
It encloses.
Fig. 1 is the structural schematic diagram of the coal gas selectivity desalting system for dynamic equipment blade salt corrosion of the present invention.
Drawing reference numeral explanation：
1, feed pump；2, delivery pipe；3, air jet pipe；4, spray gun；5, gas pipe；6, controller；7, magma cylinder；8, clear water
Cylinder；9, densitometer；10, pressure transmitter；11, solenoid valve；12, ball valve is overhauled；13, metering pump；14, flowmeter；15, check
Valve；16, compensator；17, butterfly valve；18, shut-off valve；α, angle.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In addition to non-individual defines the direction pointed out, the directions such as upper and lower, left and right being referred to herein are with this hair
Subject to the directions such as the upper and lower, left and right in Fig. 1 shown in bright, illustrate in this together, in addition, the selectivity desalination technology is selected
Selecting property by the cured technology of part ion in coal gas.Present invention can apply to because coal gas analyse salt due to caused by all kinds of dynamic equipment
Blade dynamic balancing destabilization problems, such as the blast-furnace top gas recovery turbine generator (TRT) of blast furnace gas turbine, or
The pressuring machine of coke-stove gas, explanation below will be with blast furnace gas and the turbine of blast-furnace top gas recovery turbine generator (TRT)
It is illustrated for machine.
Embodiment one
As shown in Figure 1, the present invention provides a kind of coal gas selectivity desalting system for dynamic equipment blade salt corrosion, packet
It includes：Feed pump 1, entrance are connected with water tank (not shown), and outlet is connected by delivery pipe 2 with spray gun 4, the spray gun
The 4 inclined gas pipes 5 for being inserted in conveying coal gas；Multiple magma cylinders 7, each 7 interior energy of magma cylinder are installed with a kind of desalination medicine
Agent, multiple magma cylinders 7 are connected by a solenoid valve 11 with the delivery pipe 2, the solenoid valve 11 and the delivery pipe 2 it
Between be equipped with metering pump 13；Air jet pipe 3, entrance are connected with nitrogen gas tank (not shown), and outlet is close with the delivery pipe 2
One end of the spray gun 4 is connected.
The feed pump 1 of the present invention is used for the water needed for the water tank extracting mixture liquid, it is preferred that and feed pump 1 is variable frequency pump,
To change frequency and rotating speed according to the demand of straying quatity, because feed pump 1 may have vibration at work, so in feed pump
It is respectively provided with compensator 16 (it can be bellows) at 1 entrance and exit, ensures that piping connection is smooth, avoids shaking for feed pump 1
It is dynamic to cause pipeline to bear torque and easy to fall off, meanwhile, non-return valve 15 can be also set between feed pump 1 and water tank, avoid flowing backwards,
In addition, being equipped with butterfly valve 17 close to 1 exit of feed pump in delivery pipe 2, butterfly valve 17 is located at the downstream of compensator 16, is with control
It is no to convey water to delivery pipe 2；Preferably, magma cylinder 7 is three, certainly, it can also be set as other suitable quantity as needed.
The solenoid valve 11 of the present invention is two various way solenoid valves 11, and multiple magma cylinders 7 are connected and are divided with solenoid valve 11 respectively
It is not opposite with a channel of solenoid valve 11, to select a certain magma cylinder 7 to be connected to delivery pipe 2 by solenoid valve 11, solenoid valve 11
The metering pump 13 being arranged between delivery pipe 2 is used for quantitative suction desalination medicament, and guarantee is made up a prescription accurate.Wherein, feed pump 1,
The structure of metering pump 13 and solenoid valve 11 is structure well known in the prior art, and details are not described herein.
The air jet pipe 3 of the present invention is equipped with shut-off valve 18, and the high pressure in nitrogen gas tank can be controlled by the opening and closing of shut-off valve 18
The penetrating of nitrogen, realize to the liquid in delivery pipe 2 remove salt spices liquid atomization, wherein employ nitrogen as be atomized air source, be because
Relative to coal gas it is stable inert gas for nitrogen, does not will produce danger, ensure safe operation, in addition, its air source
The nitrogen after the big ash cellar pressure reducing valve in blast furnace system can be used as atomization air source, save depressurized system and associated assay devices
Construction cost.Spray gun 4 can realize being thoroughly mixed except salt spices liquid according to desalination medicament dissolution feature, avoid back mixing, and energy
Realize the injection for removing salt spices liquid after atomization, and 4 ejiction opening of spray gun is tapered, further increases except the vaporization of salt spices liquid is noted
Enter effect, wherein spray gun 4 is inclined to be inserted on gas pipe 5, is conducive to remove salt spices liquid and coal after the atomization of the ejection of spray gun 4
The solidification of part ion is fully realized in the mixing of gas.
Further, as shown in Figure 1, the coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes
The outlet of one clear water cylinder 8, the clear water cylinder 8 is connected with the solenoid valve 11, to aspirate removing in a magma cylinder 7 in metering pump 13
After salt medicament, the clear water in clear water cylinder 8 is aspirated by metering pump 13, realizes the washing to metering pump 13 and its place pipeline,
The use of two kinds of desalination medicaments can be used to separate, avoid each desalination medicament that back mixing or chemical reaction occur in delivery pipe 2.
Further, as shown in Figure 1, the coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes
Controller 6, the controller 6 are electrically connected with the metering pump 13, the feed pump 1 and the solenoid valve 11, to pass through control
Device 6 controls the opening and closing of metering pump 13, feed pump 1 and solenoid valve 11, realizes automatically controlled, saving manpower, convenient and efficient, and controller
Shut-off valve 18 on 6 butterfly valves 17 that can be also exported with feed pump 1 or air jet pipe 3 is electrically connected, to control butterfly valve by controller 6
17, the opening and closing of shut-off valve 18, wherein controller 6 is structure well known in the prior art, and details are not described herein.
Further, the gas pipe 5 is equipped with gas composition analyzer (not shown), the gas composition point
Analyzer is located at the upstream of the gas pipe 5 and 4 joint of the spray gun, the gas composition analyzer and 6 electricity of the controller
Gas composition in gas pipe 5 that gas composition analyzer detects is fed back to controller 6, enables 6 basis of controller by connection
Gas composition selectively turns on solenoid valve 11, to select the medicament in suitable magma cylinder 7, and selectively turns on feed pump
1 and metering pump 13, control realizes the flow of the gas composition and metering pump 13 in the gas pipe 5 of detection except the mixture of salt spices liquid
Chain control is carried out, ensures that dosing is accurate, wherein gas composition analyzer is structure well known in the prior art, herein no longer
It repeats.
Further, as shown in Figure 1, the ejiction opening of the spray gun 4 is located on the central axes of the gas pipe 5, the spray
The central axes of the center line of the ejiction opening of rifle 4 and the gas pipe 5 form an angle α, i.e. the desalination medicine of the ejection atomization of spray gun 4
The direction of liquid and the flow direction of coal gas make an angle alpha, and in favor of atomization being sufficiently mixed except salt spices liquid and coal gas, realizes gaseous state
The solidification of lower part segregant, preferably, the angle α is 65 degree~75 degree.
Further, as shown in Figure 1, flowmeter 14 is equipped between the metering pump 13 and the delivery pipe 2, for detecting
The flow for conveying desalination medicament, using auxiliary tool, the record adding amount as metering pump 13, between flowmeter 14 and delivery pipe 2,
And maintenance ball valve 12 can be equipped between solenoid valve 11 and metering pump 13, in order to overhaul, the magma cylinder 7 is equipped with densitometer 9,
Density for detecting the desalination medicament in magma cylinder 7 ensures desalination medicament purity, ensures that pharmacy quality is qualified, such as fruit protoplasm
Enter water in cylinder 7, desalination medicament density is caused to decline, then needs replacing desalination medicament, the magma cylinder 7 and the solenoid valve 11
Junction be equipped with pressure transmitter 10, for monitoring the pressure in magma cylinder 7, realize that metering pump 13 combines flowmeter 14, close
Degree meter 9 and pressure transmitter 10 realize that accurate quantitative analysis controls process of making up a prescription.
Embodiment two
The present invention also provides a kind of coal gas selectivity desalination methods for dynamic equipment blade salt corrosion, wherein the needle
To moving the coal gas selectivity desalination method of equipment blade salt corrosion using as described above for the coal of dynamic equipment blade salt corrosion
Gas selectivity desalting system, the structure and operation principle of the coal gas selectivity desalting system for dynamic equipment blade salt corrosion
Identical as the record in embodiment one, details are not described herein, and the coal gas for dynamic equipment blade salt corrosion selectively removes
Salt method includes the following steps：
Step a opens feed pump 1 and metering pump 13, conveys water from water tank to delivery pipe 2 by the feed pump 1, passes through
The metering pump 13 conveys the desalination medicament in a magma cylinder 7 through solenoid valve 11 is quantitative to delivery pipe 2, the delivery pipe 2
Interior water and desalination medicament is mixed into except salt spices liquid；
Step b, it is described except salt spices liquid the nitrogen that air jet pipe 3 input blow act under be atomized, the desalination medicine after atomization
After liquid enters spray gun 4, is sprayed into gas pipe 5 by the spray gun 4 and mixed with coal gas；
Step c is repeated in above-mentioned steps a~step b, and the desalination medicament in remaining described magma cylinder 7 is mixed successively
Atomization sprays into gas pipe 5 after synthesis removes salt spices liquid.
The present invention can be directed to the easy salt-forming cation contained in coal gas, spray into mist into gas pipe 5 by above-mentioned steps successively
That changes removes salt spices liquid, wherein except salt spices liquid can complete mixing in delivery pipe 2, mixing efficiency is high, and is realized in 2 end of delivery pipe
Atomization, atomization except salt spices liquid enter 4 interior energy of spray gun further mix after spray, with the specific salts substances in gas pipe 5
Selection chemical reaction occurs, is repeated in step a~step b, keeps various desalination medicaments with different levels in delivery pipe 2 successively
A kind of successively mixing (once completing mixing of desalination medicament and water, repeatedly complete the mixing of a variety of desalination medicaments and water), and
Turbulent closure scheme occurs in delivery pipe 2 due to the pump action of feed pump 1 and metering pump 13, with to required different physicochemical properties
Desalination medicament carry out liquid mixture, realize subsequent atomization remove salt spices liquid and coal gas quantitative reaction, realization to it is a variety of easily at
The solidification of salt cation removes the inorganic salts being easily precipitated in advance, avoids those follow-up easy salt-forming cations that nothing is precipitated on blade
Machine salt.Wherein, each desalination medicament is known in the state of the art.
Further, further include step c0 between the step b and the step c, it will be clear by the metering pump 13
Clear water in water drum 8 is pumped into delivery pipe 2 through the solenoid valve 11, to aspirate the desalination medicament in a magma cylinder 7 in metering pump 13
Afterwards, the clear water in clear water cylinder 8 is aspirated by metering pump 13, realizes the cleaning to metering pump 13 and its place pipeline.
Further, in the step a, gas composition is detected by the gas composition analyzer on the gas pipe 5
And controller 6 is fed back to, the controller 6 controls the solenoid valve 11, the feed pump 1 and institute according to the gas composition of detection
The opening and closing of metering pump 13 is stated, to select the desalination medicament in suitable magma cylinder 7, and corresponding opens solenoid valve 11, and it is selective
Unlatching feed pump 1 and metering pump 13, control except salt spices liquid mixture.
Present invention can apply to the analysis salt treatment of various dynamic equipment blades, pressuring machine applied to coke-stove gas etc. other
Turbine when dynamic equipment and applied to TRT is the same, and details are not described herein, belongs to steam state desalination, and carburation by evaporation is fast, no
The temperature and flow for influencing coal gas, will not influence TRT power generations or other dynamic equipment use, and be injected by being classified, to adapt to
Different ions corresponding different desalination medicament and mixed proportion in coal gas, spray is flexible, and is combined by a metering pump 13
Various way solenoid valve 11 realizes disjunction dosing, had both avoided the mixing in advance of desalination medicament, and had in turn ensured the accuracy of dosing, also subtract
Lack the quantity and construction investment expense of equipment, and by spraying into high pressure nitrogen, both realizes the atomization except salt spices liquid, also in fact
Show the cooling to spray gun 4, avoids performance degradation of the nozzle of spray gun 4 under coal gas of high temperature, simple in structure, maintenance cost is low,
Non-standard equipment is few, and construction cost is low, and the deduster being arranged in 5 downstream of gas pipe of conveying coal gas is combined to realize to curing ion
Filtering, wherein deduster is arranged between gas pipe 5 and dynamic equipment, and deduster can be that bag filter or whirlwind remove
Dirt device can be also electric precipitator, not be limited herein.
It is continued to explain by taking the turbine of blast-furnace top gas recovery turbine generator as an example below, the present invention is to pass through feed pump
1 aspirates the water in water tank, and the desalination medicament in the one magma cylinder 7 of suction quantitative, selective by metering pump 13 realizes desalination
Medicament and water being mixed into except salt spices liquid in 2 quantification of delivery pipe, the nitrogen sprayed by air jet pipe 3, to mixed desalination medicine
Liquid injection atomization, to be sprayed into gas pipe 5 through spray gun 4 by the salt spices liquid that removes after atomization, to occur with the coal gas in gas pipe 5
Effect is realized and cures the easy salt-forming cation in part in coal gas, convenient for that can be filtered out after coal gas enters subsequent deduster
Ion after solidification, after avoiding purified coal gas from entering blast-furnace top gas recovery turbine generator (TRT), those are easily at salt sun
Ion is precipitated on blast-furnace top gas recovery turbine generator (TRT) blade, and is impacted to dynamic balancing, ensure that blast furnace coal
The long-term normal operation of gas waste pressure turbine power generator (TRT), generating efficiency is high, and service life is long, a little repair, for example, choosing
Selecting property will influence blade erosion very big but smaller content Al3+、Mg2+Deviate from etc. easy salt-forming cation premature cure, and
And in the gas pipe 5 detected by gas composition analyzer coal gas ingredient, and result is fed back into controller 6, to pass through control
The feedback result that device 6 processed receives, is turned on and off metering pump 13 and feed pump 1, and selectively turns on solenoid valve 11, to choose
7 supplying medicament of magma cylinder of suitable desalination medicament is filled, time saving and energy saving, work efficiency is high.
The present invention can use on half clean coal tracheae before half purified gas from blast furnace gas enters deduster, with profit
Ion after solidification is removed through deduster, realizes premature cure, is reduced through the purified purified gas of deduster on TRT blades
The risk of salt is analysed, meanwhile, the present invention can also use on through the purified clean coal tracheae of deduster, endotracheal to be directed to clean coal
Gas composition, auxiliary carries out the premature cure of part ion, and filter plant, the ion mistake after curing is arranged in downstream
Filter, further decreases the risk that coal gas analyses salt on TRT blades.Present invention selectivity cures the part ion in coal gas,
In order to remove the ion (i.e. inorganic salts) after solidification in advance, the turbine leaf in blast-furnace top gas recovery turbine generator is avoided
On piece occurs analysis salt and corrodes blade, improves working efficiency, reduces job costs, extends service life of equipment.
In addition, the present invention is directed to the coal gas selectivity desalting system of dynamic equipment blade salt corrosion, (namely coal gas selectively removes
Salt system, i.e. selective inhibiting salts Erosion subunit) when in use, it can press coal gas with batch can
Coupled system (the i.e. Interstage Coupling System in Hybrid of of recycling and blast furnace gas dry dust removal
Equalizing gas recovery and Networks of blust furnace gas dedusters, abbreviation I-
CHEN it) is applied in combination, i.e., presses the subsequent purification system of the coupled system of coal-gas recovering and blast furnace gas dry dust removal as batch can
System uses, to form blast furnace gas recycling, dedusting and selective desalination three-level purification system (i.e. Tertiary cleaning
System), specifically, (dustiness is more than 20g/Nm to the raw coke oven gas of blast furnace roof discharge3) (i.e. primary net by cyclone dust removal
Change, Primary clean system) becoming half purified gas afterwards, (dustiness is less than 10g/Nm3), it is equal that half purified gas enters batch can
Pressure coal-gas recovering and blast furnace gas dry dust removal coupled system purified and as purified gas (i.e. double purification,
Secondary clean system, dustiness are less than 10mg/Nm3), purified gas is again through the present invention for dynamic equipment blade
The coal gas selectivity desalting system of salt corrosion forms ultra-clean coal gas and (is purified three times, because in coal gas for subsequently industrial or civilian
Salt ion can not directly be removed by I-CHEN or other sack cleaners).Certainly, also coal-gas recovering can be pressed with batch can
With defeated grey coupled system (the Fluidized Conveying Coupling System in of the fluidisation of blast furnace gas dry dust removal
Hybrid of Equalizing gas recovery and Networks of blast furnace gas
Dedusters, i.e. F-CHEN) it is used in combination, and form a whole set of energy-saving and purifying and fluidisation ash-transmission system.Certainly, it can also tie
Scaler system is closed, realizes the ultrapurification to coal gas.
The above is only presently preferred embodiments of the present invention, not does limitation in any form to the present invention, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, has in any technical field
Usual skill, in the range of not departing from technical solution of the present invention, when the technology contents using the disclosure above make it is a little
The equivalent embodiment of equivalent variations is changed or is modified to, as long as being the content without departing from technical solution of the present invention, according to the present invention
Technical spirit to any simple modification, equivalent change and modification made by above example, still fall within the technology of the present invention side
In the range of case.
Claims (10)
1. a kind of coal gas selectivity desalting system for dynamic equipment blade salt corrosion, which is characterized in that described for dynamic equipment
The coal gas selectivity desalting system of blade salt corrosion includes：
Feed pump, entrance are connected with water tank, and outlet is connected by delivery pipe with spray gun, the spray gun is inclined be inserted in it is defeated
The gas pipe of gas delivery；
Multiple magma cylinders, each magma cylinder interior energy are installed with a kind of desalination medicament, and multiple magma cylinders pass through a solenoid valve
It is connected with the delivery pipe, metering pump is equipped between the solenoid valve and the delivery pipe；
Air jet pipe, entrance are connected with nitrogen gas tank, and outlet is connected with the delivery pipe close to one end of the spray gun.
2. the coal gas selectivity desalting system according to claim 1 for dynamic equipment blade salt corrosion, which is characterized in that
The coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes a clear water cylinder, the outlet of the clear water cylinder with
The solenoid valve is connected.
3. the coal gas selectivity desalting system according to claim 1 for dynamic equipment blade salt corrosion, which is characterized in that
The coal gas selectivity desalting system for dynamic equipment blade salt corrosion further includes controller, the controller and the metering
Pump, the feed pump and solenoid valve electrical connection.
4. the coal gas selectivity desalting system according to claim 3 for dynamic equipment blade salt corrosion, which is characterized in that
The gas pipe is equipped with gas composition analyzer, and the gas composition analyzer is located at the gas pipe and connects with the spray gun
The upstream at place, the gas composition analyzer are electrically connected with the controller.
5. the coal gas selectivity desalting system according to claim 1 for dynamic equipment blade salt corrosion, which is characterized in that
The ejiction opening of the spray gun is located on the central axes of the gas pipe, the center line of the ejiction opening of the spray gun and the gas pipe
Central axes shape have angle.
6. the coal gas selectivity desalting system according to claim 5 for dynamic equipment blade salt corrosion, which is characterized in that
The angle is 65 degree~75 degree.
7. the coal gas selectivity desalting system according to claim 1 for dynamic equipment blade salt corrosion, which is characterized in that
Between the metering pump and the delivery pipe be equipped with flowmeter, the magma cylinder be equipped with densitometer, the magma cylinder with it is described
The junction of solenoid valve is equipped with pressure transmitter.
8. a kind of coal gas selectivity desalination method for dynamic equipment blade salt corrosion, which is characterized in that described for dynamic equipment
The coal gas selectivity desalination method of blade salt corrosion is directed to dynamic equipment blade using as described in any one of claim 1 to 7
The coal gas selectivity desalting system of salt corrosion, the coal gas selectivity desalination method for dynamic equipment blade salt corrosion include such as
Lower step：
Step a opens feed pump and metering pump, conveys water from water tank to delivery pipe by the feed pump, passes through the metering
Pump conveys the desalination medicament in a magma cylinder through solenoid valve is quantitative to delivery pipe, the water in the delivery pipe and desalination medicament
It is mixed into and removes salt spices liquid；
Step b, it is described to be atomized under effect in blowing for the nitrogen that air jet pipe input except salt spices liquid, after atomization except salt spices liquid entrance
After spray gun, is sprayed into gas pipe by the spray gun and mixed with coal gas；
Step c is repeated in above-mentioned steps a~step b, and the desalination medicament in remaining described magma cylinder is mixed into successively and is removed
Atomization sprays into gas pipe after salt spices liquid.
9. the coal gas selectivity desalination method according to claim 8 for dynamic equipment blade salt corrosion, which is characterized in that
Further include step c0 between the step b and the step c, by the metering pump by the clear water in clear water cylinder through the electricity
Magnet valve is pumped into delivery pipe.
10. the coal gas selectivity desalination method according to claim 8 for dynamic equipment blade salt corrosion, feature exists
In, in the step a, gas composition is detected by the gas composition analyzer on the gas pipe and feeds back to controller,
The controller controls the solenoid valve, the feed pump and the metering pump according to the gas composition of detection and is opened and closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539401.2A CN108654350A (en) | 2018-05-30 | 2018-05-30 | For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810539401.2A CN108654350A (en) | 2018-05-30 | 2018-05-30 | For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108654350A true CN108654350A (en) | 2018-10-16 |
Family
ID=63774533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810539401.2A Pending CN108654350A (en) | 2018-05-30 | 2018-05-30 | For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108654350A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11209808A (en) * | 1998-01-26 | 1999-08-03 | Sumitomo Metal Ind Ltd | Method for preventing development of stuck material to dry type furnace top pressure turbine and device therefor |
| CN106086261A (en) * | 2016-06-29 | 2016-11-09 | 中冶东方工程技术有限公司 | Blast furnace gas pipeline spray alkali deacidifying device and technique |
| CN107385128A (en) * | 2017-09-15 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas spraying methods of eliminating acidity and device for not reducing calorific value of gas |
| CN208327942U (en) * | 2018-05-30 | 2019-01-04 | 中冶京诚工程技术有限公司 | Coal gas selectivity desalting system |
-
2018
- 2018-05-30 CN CN201810539401.2A patent/CN108654350A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11209808A (en) * | 1998-01-26 | 1999-08-03 | Sumitomo Metal Ind Ltd | Method for preventing development of stuck material to dry type furnace top pressure turbine and device therefor |
| CN106086261A (en) * | 2016-06-29 | 2016-11-09 | 中冶东方工程技术有限公司 | Blast furnace gas pipeline spray alkali deacidifying device and technique |
| CN107385128A (en) * | 2017-09-15 | 2017-11-24 | 中冶赛迪工程技术股份有限公司 | A kind of blast furnace gas spraying methods of eliminating acidity and device for not reducing calorific value of gas |
| CN208327942U (en) * | 2018-05-30 | 2019-01-04 | 中冶京诚工程技术有限公司 | Coal gas selectivity desalting system |
Non-Patent Citations (1)
| Title |
|---|
| 化学工业部上海化工研究院组织翻译: "冶金企业安全生产与环境保护", 30 June 2017, 中国质检出版社, pages: 608 - 609 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100493669C (en) | Smoke gas purification dust removing device and the technique thereof | |
| CN201871300U (en) | Wet dedusting device of self-heating furnace | |
| CN208327943U (en) | Artificial coal gas is sustained scaler system | |
| CN208327942U (en) | Coal gas selectivity desalting system | |
| CN108339397A (en) | A kind of industrial silicium mine heating furnace flue denitrating system | |
| CN205586711U (en) | Industry atomizing dust removal all -in -one | |
| CN208302525U (en) | A kind of industrial silicium mine heating furnace flue denitrating system | |
| CN208327939U (en) | Couple the ultra-clean system of dedusting of blast furnace gas desalination scale removal | |
| CN108654350A (en) | For the coal gas selectivity desalting system and method for dynamic equipment blade salt corrosion | |
| CN208287799U (en) | A kind of desulfurization integrated purifying column of high-effective dust-removing | |
| CN105381695B (en) | A kind of high-efficiency energy-saving desulfurizing denitration dust removal system | |
| CN210752009U (en) | Flue gas dry deacidification device and flue gas purification system | |
| CN204745970U (en) | Thin water smoke literary composition mound pipe of high pressure | |
| CN209383589U (en) | A kind of desulfurization wastewater multi-heat source coupled processing system | |
| CN108774551A (en) | For the blast furnace coal gas purification system and method for turbine blade salt corrosion and fouling | |
| CN108283881A (en) | A kind of desulfurization integrated purifying column of high-effective dust-removing | |
| CN213232140U (en) | Row sediment device is arranged to crude benzol | |
| CN208287777U (en) | A kind of novel coal-fired boiler high-efficience dust-remove desulfurization system | |
| CN209254487U (en) | A kind of cement kiln denitration chilling bypass system | |
| CN211946338U (en) | Low-energy-consumption desulfurization wastewater treatment system | |
| CN204699546U (en) | A kind of Wet-type dust-removal fan | |
| CN209302518U (en) | A kind of denitrification apparatus | |
| CN108485724A (en) | Artificial coal gas scale inhibition system and sustained release descaling method | |
| CN206680211U (en) | A kind of desulfurizing waste water processing device and its control system | |
| CN201095599Y (en) | Pneumatic feeding device of roasting furnace for preparing cobaltosic oxide powder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |