CN206715493U - Energy-saving graphite multitube smoke duster - Google Patents
Energy-saving graphite multitube smoke duster Download PDFInfo
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- CN206715493U CN206715493U CN201720208067.3U CN201720208067U CN206715493U CN 206715493 U CN206715493 U CN 206715493U CN 201720208067 U CN201720208067 U CN 201720208067U CN 206715493 U CN206715493 U CN 206715493U
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 160
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 151
- 239000010439 graphite Substances 0.000 title claims abstract description 151
- 239000000779 smoke Substances 0.000 title claims abstract description 25
- 239000003546 flue gas Substances 0.000 claims abstract description 55
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 51
- 238000005304 joining Methods 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 88
- 238000007789 sealing Methods 0.000 claims description 52
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 4
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 14
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 48
- 238000000034 method Methods 0.000 description 41
- 239000011230 binding agent Substances 0.000 description 25
- 239000000463 material Substances 0.000 description 13
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- 239000003795 chemical substances by application Substances 0.000 description 12
- 238000012360 testing method Methods 0.000 description 12
- 238000001723 curing Methods 0.000 description 11
- 238000001035 drying Methods 0.000 description 10
- 230000008859 change Effects 0.000 description 9
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- 239000004927 clay Substances 0.000 description 8
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- 230000000903 blocking effect Effects 0.000 description 7
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- 239000000126 substance Substances 0.000 description 7
- 208000037656 Respiratory Sounds Diseases 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
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- 238000005498 polishing Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229920002943 EPDM rubber Polymers 0.000 description 4
- AEEAZFQPYUMBPY-UHFFFAOYSA-N [I].[W] Chemical compound [I].[W] AEEAZFQPYUMBPY-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
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- 229910003481 amorphous carbon Inorganic materials 0.000 description 2
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- CSKNSYBAZOQPLR-UHFFFAOYSA-N benzenesulfonyl chloride Chemical compound ClS(=O)(=O)C1=CC=CC=C1 CSKNSYBAZOQPLR-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
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- 239000003054 catalyst Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
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- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- LCDFWRDNEPDQBV-UHFFFAOYSA-N formaldehyde;phenol;urea Chemical compound O=C.NC(N)=O.OC1=CC=CC=C1 LCDFWRDNEPDQBV-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
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- SYSQUGFVNFXIIT-UHFFFAOYSA-N n-[4-(1,3-benzoxazol-2-yl)phenyl]-4-nitrobenzenesulfonamide Chemical class C1=CC([N+](=O)[O-])=CC=C1S(=O)(=O)NC1=CC=C(C=2OC3=CC=CC=C3N=2)C=C1 SYSQUGFVNFXIIT-UHFFFAOYSA-N 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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- 229920001568 phenolic resin Polymers 0.000 description 1
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- 235000019353 potassium silicate Nutrition 0.000 description 1
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- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a kind of energy-saving graphite multitube smoke duster, including housing, upper cover and low head, the lower section of the low head is provided with and removes ash bin, the lower end of the dust cleaning case is provided with ash disposal mouth, graphite is provided with the housing to restrain, the joining place of the upper cover and housing is horizontal upper graphite tube plate, the joining place of the low head and housing is horizontal lower graphite tube plate, the tube side of the graphite tube bank connects the inner chamber of upper cover and low head by upper graphite tube plate with lower graphite tube plate, the upper cover is provided with high-temperature flue gas entry, the low head exports provided with low-temperature flue gas, flowing has flue gas in the tube side of the graphite tube bank.The utility model uses dedusting and heat exchange element of the graphite-pipe as boiler smoke, and because it has good heat conductivility and low-affinity, particle dust can conduct oneself with dignity and separated under effect of inertia from flue gas, and will not be adhered on graphite tube wall, and dedusting is thorough.
Description
Technical field
It the utility model is related to a kind of smoke dust-removing equipment, and in particular to a kind of energy-saving graphite multitube smoke duster,
Its method of work and its repair method.
Background technology
Energy-conserving and environment-protective are the fundamental state policies of country, are the important embodiments for practicing the Scientific Outlook on Development.China is that an energy disappears
Big country is consumed, with the fast development of China's economy, energy demand be increased dramatically, and energy shortage restricts to economic development further to be added
Play, it is faced with huge resource and environmental pressure.One of them most important reason is that energy utilization rate is low.Promote high efficiency of energy
Using and recycle, be alleviate energy shortage contradiction fundamental solution.
Boiler is a kind of larger special equipment of energy consumption, and its energy consumption accounts for the AND ENERGY RESOURCES CONSUMPTION IN CHINA total amount overwhelming majority, pot
Stove saves and emission reduction reduces pollutant emission for China, reduces its level of power consumption, and the economic benefit of enterprise plays
Very important meaning.Because China's industrial mode of production is also in labour-intensive and extensive stage, factory steam side
Formula is more dispersed, and Industrial Boiler using energy-conservation, consumption reduction, emission-reduction technology and is not arranged using scattered steam supply, most of medium-sized and small enterprises
Apply.
It there is high fume temperature during industrial boiler operation, burning is insufficient, boiler thermal output is low etc..Row
Energy total amount in cigarette heat loss is huge, and this part of energy is made full use of and comes preheated air and water, improve air themperature with
And feed temperature, efficiency of combustion can be improved in certain degree.Due to containing sulphur in the fuel such as coal, oil, natural gas, combustion
Oxysulfide would generally be produced during burning, sulfuric acid vapor is formed after being combined with vapor.When the metallic walls of heated surface at the end of boiler
Face temperature will form liquid sulfuric acid (referred to as condensing), length less than the set point (being referred to as acid dew point) of sulfuric acid vapor on its surface
Since phase, economizer causes corrosion, or even perforated phenomenon to occur often due to condensation, has a strong impact on the safe for operation of boiler,
So Industrial Boiler is all to alleviate the generation of condensation and corrosion phenomenon by keeping higher exhaust gas temperature.But at present, work
Industry boiler dust removal equipment is simple or smokeless treatment measures, granule dust, SO in flue gas2And NO2Pollutant emission is serious.
A kind of nonmetallic materials that graphite is made up of carbon, belong to a kind of allotrope of elemental carbon.Carbon
There are three kinds of isomers：One kind is amorphous carbon, such as charcoal, coke, carbon black；Other two is crystalline carbon, i.e. graphite and Buddha's warrior attendant
Stone.Amorphous carbon can be converted into graphite through high-temperature process, and graphite can be converted into again under catalyst action and high pressure, hot conditions
Diamond.Graphite category hexagonal crystal system, each aspect are made up of hexagon ring, and aspect is parallel with aspect, in orderly overlapping crystal knot
Structure.
Graphite has many special natures due to its special construction：1), heat-resisting quantity：The fusing point of graphite be 3850 ±
50 DEG C, boiling point is 4250 DEG C, even if through superhigh temperature electric arc calcination, the loss very little of weight, also very little, graphite are strong for thermal coefficient of expansion
Degree is improved and strengthened with temperature.2), conductive, thermal conductivity：The electric conductivity of graphite is higher than general nonmetallic mineral 100 times, thermal conductivity
The metal materials such as steel, iron can be several times as much as.3), lubricity：The greasy property of graphite depends on the size of graphite flakes, and scale is got over
Greatly, coefficient of friction is smaller, and greasy property is better.4), chemical stability：Graphite is having good chemical stability, can be acidproof, resistance to
The corrosion of alkali and organic solvent-resistant.5) plasticity：The good toughness of graphite, very thin thin slice can be processed into.6), thermal shock resistance：Stone
Ink is able to take the acute variation of temperature and will not destroyed when using at normal temperatures, and during temperature jump, the Volume Changes of graphite are not
Greatly, will not crack.
Graphite is divided to two kinds of native graphite and Delanium, and native graphite purity is low, tissue is loose, graphite equipment graphite material
Material is generally Delanium.Delanium is compressing by coke, pitch kneading, and air roasting is completely cut off in kiln, is typically existed
Kept for 20 days at 1300 DEG C, then through carrying out graphitization processing under 2400~3000 DEG C of high temperature.Delanium in roasting process, by
Escaped in organic matter in gaseous state, therefore it is in porous, therefore artificial graphite material need to typically pass through high polymer material (mainly phenol
Urea formaldehyde) sealing of hole impregnation is changed into impermeable graphite, could be used on chemical industry equipment.Impermeable graphite is divided into three kinds：
Impregnated graphite, die mould graphite, cast graphite.Impregnated graphite impregnates by resin-impregnated graphite, waterglass of impregnating agent different instructions
Graphite, bituminizing graphite；Die mould graphite is divided to two kinds of molding type and extrusion pressing type；Casting type graphite divides normal pressure molded graphite, pressurization
Two kinds of molded graphite." affinity " between graphite and most of media is small, so die mould graphite surface is less scaling, works as boiler
When flue gas is with graphite contact, the granule dust in flue gas will not be accumulated on graphite surface.
Have it is above-mentioned understand, boiler smoke temperature is high, inside contains granule dust, and graphite has heat-resisting quantity, high-termal conductivity
And low-affinity, it is used as the research topic such as dedusting, heat exchange element, dedusting, waste heat recovery to high temperature flue-gas from boiler by the use of graphite-pipe
It is significant.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of energy-saving graphite multitube smoke duster, high efficiente callback
Granule dust in boiler smoke, energy-efficient, excellent cost performance, stablize durable.
In order to solve the above technical problems, embodiment of the present utility model provides a kind of energy-saving graphite multitube flue gas ash removal
Device, including housing, upper cover and low head, the upper cover are connected to the top of housing, and the low head is connected to housing
Lower section, the lower section of the low head, which is provided with, removes ash bin, and the lower end except ash bin is provided with ash disposal mouth, and graphite is provided with the housing
Tube bank, the joining place of the upper cover and housing is horizontal upper graphite tube plate, and the joining place of the low head and housing is horizontal to be had
Lower graphite tube plate, the upper and lower side of the graphite tube bank is connected with upper graphite tube plate and lower graphite tube plate respectively, and the graphite-pipe
The tube side connection upper cover of beam and the inner chamber of low head, the upper cover are provided with high-temperature flue gas entry, set on the low head
There is low-temperature flue gas outlet, being flowed in the tube side of the graphite tube bank has flue gas；
Flowing has recirculated water in the shell side of the housing, and the bottom of the housing is provided with circulating water intake, the housing
Top is provided with circulating water outlet；
The outside of the low-temperature flue gas outlet is connected with exhaust pass, and the lower section of the exhaust pass, which is provided with, receives condensation
Water-film Separator.
Preferably, resin impregnating graphite-pipe is selected in the graphite tube bank.
Wherein, by tetrafluoro packing, O-ring and differential combination sealing between the upper cover and housing, and flange is passed through
Connection.
Wherein, polytetrafluoroethylene sealing gasket piece is provided between the low head and housing, on the upper cover and low head
It is equipped with manhole.
Further, the circulating water outlet is connected by hot-water line with water tank, and a wherein water side for the water tank passes through
Deaerating type of cycles is connected with boiler, and another water side is connected by hot water pipe with circulating water intake, close to circulation on the hot water pipe
Water circulating pump is provided with water inlet, the bottom of the housing is provided with cooling water inlet, cold water pipe, the hot water are connected on the water tank
Valve is equipped with pipe, hot water pipe and cold water pipe.
Wherein, the water tank is provided with blow-down pipe.
Wherein, 4 ear formula support bases are evenly equipped with the outside of the housing, the top of the housing is connected with water by water pipe
Level alarm.
The method of work of above-mentioned energy-saving graphite multitube smoke duster includes flue gas ash removal process and flue gas heat exchange mistake
Journey；
The flue gas ash removal process is：Conducting oneself with dignity and flowing into the granule dust in the flue gas in the tube side of graphite tube bank
Separate, deposit to except being discharged after ash bin by ash disposal mouth from flue gas under effect of inertia；Flue-gas temperature is dropped to below acid dew point, flue gas
Middle SO2、NO2Nebulized Deng hazardous medium condensation or liquid separates from flue gas, be precipitated in heat exchanging segment in housing or in outlet cigarette
It is precipitated in road in water-film Separator.
Wherein, the flue gas heat exchange process liberated heat Q is calculated by following formula：
Q=G × C × (T1-T2) formula (1),
In formula, G is flue gas flow, m3/h；C is smoke density, kg/m3；T1For flue-gas temperature before heat exchange, DEG C；T2For heat exchange
Flue-gas temperature afterwards, DEG C；
The heat transfer area of heat exchanger is calculated by following formula：
In formula, Q is heat output, kJ；A is heat exchange area, m2；K is overall heat-transfer coefficient, kJ/m2·℃·h；Δ Tm is logarithm
MTD, DEG C；
Wherein, depending on Δ Tm calculating is counter-current relationship according to two fluids flow direction, during adverse current,
In formula, T1、T2The inlet and outlet temperature of --- -- flue gas, DEG C；t1、t2The inlet and outlet temperature of ----recirculated water
Degree, DEG C.
The repair method of above-mentioned energy-saving graphite multitube smoke duster comprises the following steps：
(1) graphite-pipe repair method
(1-1) graphite-pipe damages and cementing seam leakage cause includes：Damaged in transport installation process because of serious vibration,
Using process impact of water hammer or temperature difference mutation are caused, due to ponding, pressure increases punching suddenly in freezing, operating process in the winter time
Hit damage, cause damage, the corrosion failure of corrosive medium, quality of item bad caused more than temperature in use；
(1-2) graphite-pipe damages the position of phenomenon and breakage：Except being caused to lose by strong lateral load impact shock and
Because the bad caused longitudinal crack of graphite-pipe quality and hydrophthalmia infiltration, most of damage all occur in graphite-pipe and graphite tube plate
On cementing position, because cementing seam splits, medium osmosis inside and outside graphite-pipe is caused, is also had and is broken or is corroded through in other positions
Hole；
(1-3) restorative procedure：, will using the graphite plug being consistent with graphite tube plate aperture 1. the graphite-pipe number such as damage is few
The graphite-pipe plate hole at the graphite-pipe both ends of damage is blocked with cementing method；2. the graphite-pipe number such as damage is more, shadow is all blocked
Equipment heat exchange area is rung, the graphite of damage can be taken out, change new graphite-pipe；
(1-4) plugging
1-4-1) prepare
1. scene needs to have energization, water flowing, logical steam, the condition of logical compressed air, intend the upper and lower end socket of maintenance of equipment
Have already turned on, clean out internal debris and hazardous medium, be ready for rain-proof measure, ensure that construction area is not caught in the rain；
2. the equipment cleaning, drying to needing plugging：First graphite tube plate is cleaned up with steam, hot water or chemical
Endoporus；
3. leakage detection：Single pressure testing leakage detection is carried out to every graphite-pipe, carried out using dry compressed air, Control experiment pressure
The general 0.2MPa of power, the graphite-pipe for having seepage to discovery carry out mark and record；
4. binding agent sample：Binding agent is done according to code according to the weather condition of plan commencement date and same day weather condition
Sample, the proportioning and an amount of preparation of binding agent when being constructed so that determination is formal；
1-4-2) construct
1. graphite tube plate endoporus of polishing：With round file, wire brush polishing graphite tube plate endoporus hole wall, remove impurity thereon,
Dirty layer, untill exposing graphite true qualities, grinding depth, which is more than, needs blocking region, is rushed if it find that graphite tube plate endoporus hole wall has
Brush or corrode and deeper pit, it is necessary to first be repaired with clay, blocked up again after abundant solidification, it is impossible to expand graphite tube plate endoporus
Greatly, to ensure pitch of holes i.e. adhesive thickness in plug and graphite tube plate；
2. dry：After the polishing of graphite tube plate endoporus hole wall is qualified, each hole is toasted with iodine-tungsten lamp, ensures it dry
It is dry；
3. binding agent is allocated：The technique evaluated during according to preparation is operated, and proportioning is used according to sample determination has been done
Gauged platform balance weighs resin, graphite powder, and with counting cup meter curing agent, additive, first load weighted a collection of resin is poured into
In agitator, then graphite powder and curing agent are poured into, be stirred with agitator, mixing time 10-15min, observed viscosity and mix
Uniform situation is closed, is poured on after well mixed in container, is sent to the scene for smearing binding agent, then does next group, binding agent will be with doing
With with, it is impossible to place the long time；4. smear bonding agent：It is firm to be bonded, inside graphite plug outside and graphite-pipe plate hole all
Binding agent is smeared, needs to blow the ash in plug and graphite-pipe plate hole off with the compressed air of clean dried before smearing bonding agent
Dirt, plug front end and side are required for smearing bonding agent, and rotate uniform compaction, and thickness has been smeared no more than 1mm, binding agent
After, plug is pushed into inside graphite-pipe plate hole paragraph by paragraph, application of force is uniform, and rotation is pushed, must not be eccentric, when blocking tube sheet, profit
Binding agent is prevented to be lost in Anti-lost block；5. heat cure：After binding agent spontaneous curing, heat cure is carried out, heat cure uses iodine tungsten
Lamp or the method for air-heater baking, are controlled in proper temperature and time；
1-4-3) construction precautions：
1. tubesheet holes need to be repaired by cleaning and drying；
2. repaired hole inner circle feather plucking；
3. blowing off dust uniformly smears binding agent, blind area is not allow for；
4. graphite plug must be segmented and fill in, and form the circumferential weld of full clay；
5. after spontaneous curing 24 hours, 48 hours need to be heated to being fully cured；
1-4-4) other attention items：
1. whether have in plug-hole needed for going through and be washed the pit to be formed；
It is connected 2. whether having crackle between the Kong Yukong on graphite tube plate or being abraded；
3. determine wearing bush or put the depth or thickness for washing away plate, it is ensured that get lodged in more than wearing bush；
4. carrying out marker number, prevent wrong stifled, leakage from blocking up；
1-4-5) test leakage detection
1. determine pressure：0.8 times of design pressure, or 0.3MPa, not more than 0.35MPa, only test shell side pressure；
2. pressure-measuring method：Shell side mouth of pipe blank off first, full of normal temperature clean water, emptying air, seepage is checked whether there is,
Then pump up, boosting slowly must rise 0.1MPa, and seen whether seepage, such as ne-leakage pressurize half an hour pressure for 2 minutes
It is qualified not to be reduced to；
3. pressurize leakage detection：More than pressure 30min is kept, checks whether there is seepage；
(1-5) changes pipe
When graphite-pipe damage radical reaches total radical more than 20%, pipe reparation need to be changed or change new equipment, program is as follows：
1-5-1) pressure testing inspection determines fistulae position, drains the water away, dry or drying, carries out mark；
The hole of the bad pipe position of both ends graphite tube plate 1-5-2) is expanded to 1 ㎜ bigger than graphite-pipe external diameter, gets into graphite tube plate
Behind bottom, fistulae being ejected with new graphite-pipe or taken out using specific purpose tool, the graphite-pipe plate hole of expansion is wiped into hair side with sand paper,
Length will align with the bonding plane of new graphite-pipe, after being cohered with clay, be tensed with stay bolt, should symmetrically and evenly tighten during fastening,
Step, cold curing 24 hours are prevented, then heat cure 48 hours at 130 DEG C are carried out with drying oven；
(2) replacing options of pad and O-ring
The abort situation and the order of severity occurred according to equipment, takes different repair methods, if pad and Ο types are irised out
Existing seepage, it may be possible to caused by nut loosening or thermal expansion, adjust can at any time；If pad and Ο types circle are
Sew seriously, then overhauled by following methods through aging or damage：
At (2-1) Ο type circle sealings, it is necessary to which per tour is tested record, such as finds that leakage needs on-call maintenance, careful
Check at sealing surface whether burn into aging or damage, whether Ο types circle meet the requirements, and needs symmetrically to apply when installing sealing ring flange
Power, inspection leak test need to be suppressed after reparation at sealing；
(2-2) changes Ο type circles：The symmetrical differential fixing nut that comes loose jacks up differential, takes out the Ο type circles to be changed, puts
Enter new Ο types circle to compress with differential again, should symmetrically and evenly be tightened nut.Ο types circle used makes of rubber round bar, material
Fluorubber, PTFE or ethylene propylene diene rubber are selected according to dielectric property.New to change Ο type circles, length is suitable, it is impossible to too loose, joint
Using overlap joint, the end of overlap two is whittled into less than the 30 ° gradients, neatly aligns and cemented with glue, outside winds several layers of four again in place
Fluorine raw material band.Ο types circle cut sides should be parallel to differential sealing surface during compression.
(2-3) changes sealing gasket：Upper cover must be dismantled by changing sealing gasket, check whether sealing surface damages, if any damage palpus
Repairing；Way of the way of sealing gasket with reference to Ο type circles.Sealing gasket makes of polytetrafluoro braided packing or rubber strip, material root
PTFE or ethylene propylene diene rubber, fluorubber are selected according to dielectric property.
(3) repair method of graphite tube plate
(3-1) source of damage：In transportation judder and when mechanical damage, fastening bolt it is unilateral firmly, more than making
Damage, product material are caused with temperature and pressure or construction quality is bad causes；
(3-2) damaged condition and position：General damage is to produce longitudinal crack, and graphite tube plate damages in this way, can also influence
The cementing seam seepage of graphite-pipe, graphite-pipe needed for repair and replacement while repairing manages graphite tube plate；
(3-3) restorative procedure
Crackle both sides instrument widens crackle several millimeters on graphite tube plate, another processing one it is block-shaped similar with expansion seam and
The small 1mm of thickness or so impregnated graphite lath, the binding agent being stirred is applied to outside the inner face and small strip for expanding seam, then
Graphite lath is squeezed into expansion seam, ensures that the clay thickness in cementing seam two sides is uniform, then with the ratio graphite tube plate cut out
The slightly wider glass fabric of thickness is circumferentially exerted oneself when smearing cementing agent after curling 2-3 circles, is applied again outside glass fabric
Upper cementing agent, it is allowed to solidify, cold curing 24 hours, then heat cure 48 hours at 130 DEG C are carried out with drying oven, treat cementing agent
Rear is fully cured to can be used；
(3-4) overhauls points for attention
(3-4-1) impregnated graphite tube sheet and dipping graphite tube are a kind of good fragile materials of decay resistance, are shaken
Move, beat, colliding with is easy to damage, therefore in dismounting, must handle with care in installation process, and be placed on flat cushion
On, it should be specifically noted that the protection to sealing surface；
(3-4-2) is dismantled and during assembling upper cover, it is necessary to using four hangers thereon according to hoisting operations guidelines,
Prevent from overturning, collide with；
When (3-4-3) dismantles upper cover, first upper cover must be hung with suspender, but suspender must not be too painstaking, and hoist cable stretches tight
It is tight, differential and Ο type circles are unclamped, upper cover is vertically sling or declines certain altitude (200-250mm) and then translates again,
Safe place is put into, protects sealing surface；
(3-4-4) check sealing gasket and Ο types circle whether aging or damage, if weathered or damage is, it is necessary to change same
The sealing gasket and Ο type circles of kind specification material of the same race, check whether sealing surface damages, must repairing if any damage；
When (3-4-5) assembles upper cover, sealing surface must be cleaned out, and sealing gasket first is fixed on into upper cover or graphite-pipe
The sealing surface of plate has the region of sealing waterline, is inserted in the Ο type circles being ready for, then opposite according to dismounting upper cover handling
Upper cover handling in place, is directed at sealing surface, is hung upper cover with suspender by order, but suspender must not be too painstaking, and hoist cable stretches tight
Tight, four hoist cables must uniform force；
Stay bolt through upper cover flange, differential, shell flange bolt hole, now should be noted the pressure of differential by (3-4-6)
Tight nuts and washers will first be screwed on, and be adjusted to appropriate location；Four bolt positioning, adjustment can be first worn, in order to wear other spiral shells
Bolt.
(3-4-7) symmetrically and evenly tightens the nut of stay bolt outermost end, then tightens differential clamp nut again, tightens pressure
, it is necessary to which the filler in stuffing box is put well before blue clamp nut；
After the nut of (3-4-8) stay bolt is all tightened, check whether sealing pad position meets the requirements, bolt and nut stress
Uniformly whether, qualified rear tube side water flowing, pressurization, check at sealing whether there is seepage；Test pressure, which exceedes, uses pressure 0.05-
0.1MPa, it is not necessary to reach name plate rating.
When (3-4-9) drives again, when temperature is increased to 60-70 DEG C, inspection seals whether have seepage everywhere, if any oozing
Leakage needs emphasis to fasten blowby area bolt and nut, and other bolt and nuts also will be fastened suitably；
When (3-4-10) is dismantled and assembled low head, with reference to step (3-4-2)-(3-4-10).
Above-mentioned technical proposal of the present utility model has the beneficial effect that：The utility model is using graphite-pipe as boiler smoke
The dedusting of gas and heat exchange element, because it has good heat conductivility and low-affinity, particle dust can be made in deadweight and inertia
Separate, and will not be adhered on graphite tube wall from flue gas under, dedusting is thorough；SO in flue gas2、NO2Coagulated Deng hazardous medium
Form vaporific or liquid to separate from flue gas, water-film Separator is precipitated in housing or is precipitated in exhaust pass in heat exchanging segment
It is interior, reduce the discharge of harmful substance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation after the utility model installation；
Fig. 3 is maintenance schematic diagram when upper graphite tube plate of the present utility model carries out plugging；
Fig. 4 is maintenance schematic diagram when lower graphite tube plate of the present utility model carries out plugging.
Description of reference numerals：
1st, housing；2nd, upper cover；3rd, low head；4th, except ash bin；5th, graphite is restrained；6th, upper graphite tube plate；7th, lower graphite-pipe
Plate；8th, ash disposal mouth；9th, high-temperature flue gas entry；10th, low-temperature flue gas exports；11st, circulating water intake；12nd, circulating water outlet；13rd, go out
Mouth flue；14th, water-film Separator；15th, manhole；16th, water tank；17th, deaerating type of cycles；18th, water circulating pump；19th, cooling water inlet；20、
Blow-down pipe；21st, ear formula support base；22nd, water level alarm；23rd, plug；24th, bonding agent；25th, Anti-lost block；26th, steam vent；
27th, flash steam interface；28th, emptying hole.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
As shown in Figure 1 and Figure 2, a kind of energy-saving graphite multitube smoke duster, including housing 1, upper cover 2 and low head
3, the upper cover 2 is connected to the top of housing 1, and the low head 3 is connected to the lower section of housing 1, the upper cover 2 and housing
By tetrafluoro packing, O-ring and differential combination sealing between 1, and connected by flange.Set between the low head 2 and housing 1
There is polytetrafluoroethylene sealing gasket piece, manhole 15 is equipped with the upper cover 2 and low head 3.
The lower section of the low head 3 is provided with and removes ash bin 4, and the lower end except ash bin 4 is provided with ash disposal mouth 8, in the housing 1
Provided with graphite tube bank 5, the graphite restrains 5 preferred resin impregnating graphite-pipes.
The joining place of the upper cover 2 and housing 1 is horizontal upper graphite tube plate 6, and the low head 3 is connected with housing 1
Locate it is horizontal have a lower graphite tube plate 7, the upper and lower side of the graphite tube bank 5 is connected with upper graphite tube plate 6 and lower graphite tube plate 7 respectively,
And the tube side connection upper cover 2 of the graphite tube bank 5 and the inner chamber of low head 3, the upper cover 2 enter provided with high-temperature flue gas
Mouth 9, the low head 3 are provided with low-temperature flue gas outlet 10, and being flowed in the tube side of the graphite tube bank 5 has flue gas.
The outside of the low-temperature flue gas outlet 10 is connected with exhaust pass 13, and the lower section of the exhaust pass 13, which is provided with, to be received
The water-film Separator 14 of condensation.
Flowing has recirculated water in the shell side of the housing 1, and the bottom of the housing 1 is provided with circulating water intake 11, the shell
The top of body 1 is provided with circulating water outlet 12.
The circulating water outlet 12 is connected by hot-water line with water tank 16, the wherein water side of the water tank 16 by except
Oxygen system 17 is connected with boiler, and another water side is connected by hot water pipe with circulating water intake 11, close on the hot water pipe to follow
Water circulating pump 18 is provided with ring water inlet 11, the bottom of the housing 1 is provided with cooling water inlet 19, cold water is connected on the water tank 16
Manage, valve is equipped with the hot-water line, hot water pipe and cold water pipe.
The water tank 16 is provided with blow-down pipe 20.
The outside of the housing 1 is evenly equipped with 4 ear formula support bases 21, and the top of the housing 1 is connected with water by water pipe
Level alarm 22.
The side that the top of housing 1 is located at upper graphite tube plate 6 is provided with steam vent 26, and opposite side is provided with flash steam interface
27, the bottom of housing 1 is provided with emptying hole 28 close to the place of lower graphite tube plate.
The method of work of energy-saving graphite multitube smoke duster provided by the utility model include flue gas ash removal process and
Flue gas heat exchange process；Wherein,
The flue gas ash removal process is：Conducting oneself with dignity and flowing into the granule dust in the flue gas in the tube side of graphite tube bank
Separate, deposit to except being discharged after ash bin by ash disposal mouth from flue gas under effect of inertia；Flue-gas temperature is dropped to below acid dew point, flue gas
Middle SO2、NO2Nebulized Deng hazardous medium condensation or liquid separates from flue gas, be precipitated in heat exchanging segment in housing or in outlet cigarette
It is precipitated in road in water-film Separator.
The flue gas heat exchange process liberated heat Q is calculated by following formula：
Q=G × C × (T1-T2) formula (1),
In formula, G is flue gas flow, m3/h；C is smoke density, kg/m3；T1For flue-gas temperature before heat exchange, DEG C；T2For heat exchange
Flue-gas temperature afterwards, DEG C；
The heat transfer area of heat exchanger is calculated by following formula：
In formula, Q is heat output, kJ；A is heat exchange area, m2；K is overall heat-transfer coefficient, kJ/m2·℃·h；Δ Tm is logarithm
MTD, DEG C；
Wherein, depending on Δ Tm calculating is counter-current relationship according to two fluids flow direction, during adverse current,
In formula, T1、T2The inlet and outlet temperature of --- -- flue gas, DEG C；t1、t2The inlet and outlet temperature of ----recirculated water
Degree, DEG C.
The repair method of energy-saving graphite multitube smoke duster provided by the utility model comprises the following steps：
(1) graphite-pipe repair method
(1-1) graphite-pipe damages and cementing seam leakage cause includes：Damaged in transport installation process because of serious vibration,
Using process impact of water hammer or temperature difference mutation are caused, due to ponding, pressure increases punching suddenly in freezing, operating process in the winter time
Hit damage, cause damage, the corrosion failure of corrosive medium, quality of item bad caused more than temperature in use；
(1-2) graphite-pipe damages the position of phenomenon and breakage：Except being caused to lose by strong lateral load impact shock and
Because the bad caused longitudinal crack of graphite-pipe quality and hydrophthalmia infiltration, most of damage all occur in graphite-pipe and graphite tube plate
On cementing position, because cementing seam splits, medium osmosis inside and outside graphite-pipe is caused, is also had and is broken or is corroded through in other positions
Hole；
(1-3) restorative procedure：, will using the graphite plug being consistent with graphite tube plate aperture 1. the graphite-pipe number such as damage is few
The graphite-pipe plate hole at the graphite-pipe both ends of damage is blocked with cementing method；This method, few situation is damaged suitable for pipe number
Under, provisional light maintenance processing is carried out, scene can solve.2. the graphite-pipe number such as damage is more, all blocking, which influences equipment, changes
Hot area, the graphite of damage can be taken out, change new graphite-pipe；This repair method is more complicated, typically all needs to send our factory back to
Place under repair.
(1-4) plugging
1-4-1) prepare
1. scene needs to have energization, water flowing, logical steam, the condition of logical compressed air, intend the upper and lower end socket of maintenance of equipment
Have already turned on, clean out internal debris and hazardous medium, be ready for rain-proof measure, ensure that construction area is not caught in the rain；
2. the equipment cleaning, drying to needing plugging：First graphite tube plate is cleaned up with steam, hot water or chemical
Endoporus；
3. leakage detection：Single pressure testing leakage detection is carried out to every graphite-pipe, carried out using dry compressed air, Control experiment pressure
The general 0.2MPa of power, the graphite-pipe for having seepage to discovery carry out mark and record；
4. binding agent sample：Binding agent is done according to code according to the weather condition of plan commencement date and same day weather condition
Sample, the proportioning and an amount of preparation of binding agent when being constructed so that determination is formal；
1-4-2) construct
1. graphite tube plate endoporus of polishing：With round file, wire brush polishing graphite tube plate endoporus hole wall, remove impurity thereon,
Dirty layer, untill exposing graphite true qualities, grinding depth, which is more than, needs blocking region, is rushed if it find that graphite tube plate endoporus hole wall has
Brush or corrode and deeper pit, it is necessary to first be repaired with clay, blocked up again after abundant solidification, it is impossible to expand graphite tube plate endoporus
Greatly, to ensure pitch of holes i.e. adhesive thickness in plug and graphite tube plate；
2. dry：After the polishing of graphite tube plate endoporus hole wall is qualified, each hole is toasted with iodine-tungsten lamp, ensures it dry
It is dry；
3. binding agent is allocated：The technique evaluated during according to preparation is operated, and proportioning is used according to sample determination has been done
Gauged platform balance weighs resin, graphite powder, with counting cup meter curing agent, additive, weighing and metering will pass through two people with
On verification verification, then carry out dispensing.First load weighted a collection of resin is poured into agitator, then pours into graphite powder and solidification
Agent, it is stirred with agitator, mixing time 10-15min, observes viscosity and well mixed situation, appearance is poured on after well mixed
In device, be sent to the scene for smearing binding agent, then do next group, binding agent will with do with, it is impossible to place the long time；Sometimes apply
Graphite-pipe and graphitization tube sheet will prepare the binding agent of different viscosities.4. smear bonding agent：It is firm to be bonded, outside graphite plug 23
Binding agent 24 will be smeared inside portion and graphite-pipe plate hole, needs to be blown with the compressed air of clean dried before smearing bonding agent 24
Fall the dust in plug 23 and graphite-pipe plate hole, the front end of plug 23 and side are required for smearing bonding agent 24, and rotate uniformly pressure
Real, thickness after binding agent 24 has been smeared, plug 23 is pushed into inside graphite-pipe plate hole paragraph by paragraph, application of force is equal no more than 1mm
Even, rotation is pushed, must not be eccentric, when blocking tube sheet, prevents binding agent to be lost in (upper graphite tube plate and lower stone using Anti-lost block 25
The plugging construction schematic diagram of black tube sheet is as shown in Figure 3, Figure 4)；5. heat cure：After binding agent spontaneous curing, heat cure, heat are carried out
The method that solidification is toasted using iodine-tungsten lamp or air-heater, is controlled in proper temperature and time；
1-4-3) construction precautions：
1. tubesheet holes need to be repaired by cleaning and drying；
2. repaired hole inner circle feather plucking；
3. blowing off dust uniformly smears binding agent, blind area is not allow for；
4. graphite plug must be segmented and fill in, and form the circumferential weld of full clay；
5. after spontaneous curing 24 hours, 48 hours need to be heated to being fully cured；
1-4-4) other attention items：
1. whether have in plug-hole needed for going through and be washed the pit to be formed；
It is connected 2. whether having crackle between the Kong Yukong on graphite tube plate or being abraded；
3. determine wearing bush or put the depth or thickness for washing away plate, it is ensured that get lodged in more than wearing bush；
4. carrying out marker number, prevent wrong stifled, leakage from blocking up；
1-4-5) test leakage detection
1. determine pressure：0.8 times of design pressure, or 0.3MPa, not more than 0.35MPa, only test shell side pressure；
2. pressure-measuring method：Shell side mouth of pipe blank off first, full of normal temperature clean water, emptying air, seepage is checked whether there is,
Then pump up, boosting slowly must rise 0.1MPa, and seen whether seepage, such as ne-leakage pressurize half an hour pressure for 2 minutes
It is qualified not to be reduced to；
3. pressurize leakage detection：More than pressure 30min is kept, checks whether there is seepage；Rubbery stopper and corrosion resistant can also be used
Bolt, nut plugging are lost, the insertion depth of plug determines according to leakage position.
(1-5) changes pipe
When graphite-pipe damage radical reaches total radical more than 20%, pipe reparation need to be changed or change new equipment, program is as follows：
1-5-1) pressure testing inspection determines fistulae position, drains the water away, dry or drying, carries out mark；
The hole of the bad pipe position of both ends graphite tube plate 1-5-2) is expanded to 1 ㎜ bigger than graphite-pipe external diameter, gets into graphite tube plate
Behind bottom, fistulae being ejected with new graphite-pipe or taken out using specific purpose tool, the graphite-pipe plate hole of expansion is wiped into hair side with sand paper,
Length will align with the bonding plane of new graphite-pipe, after being cohered with clay, be tensed with stay bolt, should symmetrically and evenly tighten during fastening,
Step, cold curing 24 hours are prevented, then heat cure 48 hours at 130 DEG C are carried out with drying oven；It is this to change pipe operation and typically need
Equipment is transported back equipment manufacturing to carry out.
(2) replacing options of pad and O-ring
The abort situation and the order of severity occurred according to equipment, takes different repair methods, if pad and Ο types are irised out
Existing seepage, it may be possible to caused by nut loosening or thermal expansion, adjust can at any time；If pad and Ο types circle are
Sew seriously, then overhauled by following methods through aging or damage：
At (2-1) Ο type circle sealings, it is necessary to which per tour is tested record, such as finds that leakage needs on-call maintenance, careful
Check at sealing surface whether burn into aging or damage, whether Ο types circle meet the requirements, and needs symmetrically to apply when installing sealing ring flange
Power, inspection leak test need to be suppressed after reparation at sealing；
(2-2) changes Ο type circles：The symmetrical differential fixing nut that comes loose jacks up differential, takes out the Ο type circles to be changed, puts
Enter and (pass through between bolt and tube sheet) new Ο type circles to compress with differential again, should symmetrically and evenly be tightened nut.Ο used
Type circle makes of rubber round bar, and material selects fluorubber, PTFE or ethylene propylene diene rubber according to dielectric property.Ο type circles newly are changed,
Length is suitable, it is impossible to which too loose, using overlap joint, the end of overlap two is whittled into less than the 30 ° gradients, neatly aligns and use glue in joint place
Water cements, and outside winds several layers of tetrafluoro raw material bands again.Ο types circle cut sides should be parallel to differential sealing surface during compression.
(2-3) changes sealing gasket：Upper cover must be dismantled by changing sealing gasket, check whether sealing surface damages, if any damage palpus
Repairing；Way of the way of sealing gasket with reference to Ο type circles.Sealing gasket makes of polytetrafluoro braided packing or rubber strip, material root
PTFE or ethylene propylene diene rubber, fluorubber are selected according to dielectric property.
(3) repair method of graphite tube plate
(3-1) source of damage：In transportation judder and when mechanical damage, fastening bolt it is unilateral firmly, more than making
Damage, product material are caused with temperature and pressure or construction quality is bad causes；
(3-2) damaged condition and position：General damage is to produce longitudinal crack, and graphite tube plate damages in this way, can also influence
The cementing seam seepage of graphite-pipe, graphite-pipe needed for repair and replacement while repairing manages graphite tube plate；
(3-3) restorative procedure
Crackle both sides instrument widens crackle several millimeters on graphite tube plate, another processing one it is block-shaped similar with expansion seam and
The small 1mm of thickness or so impregnated graphite lath, the binding agent being stirred is applied to outside the inner face and small strip for expanding seam, then
Graphite lath is squeezed into expansion seam, ensures that the clay thickness in cementing seam two sides is uniform, then with the ratio graphite tube plate cut out
The slightly wider glass fabric of thickness is circumferentially exerted oneself when smearing cementing agent after curling 2-3 circles, is applied again outside glass fabric
Upper cementing agent, it is allowed to solidify, cold curing 24 hours, then heat cure 48 hours at 130 DEG C are carried out with drying oven, treat cementing agent
Rear is fully cured to can be used；
The cementing agent prescription and its raw material specification subordinate list of maintenance
| Material name | Specification | Formula |
| Phenolic resin | The 2130# viscosity 1000-2000 seconds | 1kg |
| Graphite powder | Granularity 120-140 mesh | 0.6-0.8kg |
| Benzene sulfonyl chloride | Industrial goods, purity >=95% | 25-75 milliliters |
The dosage of benzene sulfonyl chloride：Depending on the change of temperature, the low dosage of temperature is big, and the high dosage of temperature is few.
(3-4) overhauls points for attention
(3-4-1) impregnated graphite tube sheet and dipping graphite tube are a kind of good fragile materials of decay resistance, are shaken
Move, beat, colliding with is easy to damage, therefore in dismounting, must handle with care in installation process, and be placed on flat cushion
On, it should be specifically noted that the protection to sealing surface；
(3-4-2) is dismantled and during assembling upper cover, it is necessary to using four hangers thereon according to hoisting operations guidelines,
Prevent from overturning, collide with；
When in (3-4-3) dismounting, first it must be hung with suspender by, but suspender must not be too painstaking, and hoist cable is tightened, pine
Differential and Ο type circles are opened, upper cover is vertically sling or declines certain altitude (200-250mm) and then translates again, is put into safety
Place, protect sealing surface；Pay attention to：The necessary uniform force of four hoist cables, otherwise end socket, which can be overturn, collides with or is scratched by hoist cable
Sealing surface.
(3-4-4) check sealing gasket and Ο types circle whether aging or damage, if weathered or damage is, it is necessary to change same
The sealing gasket and Ο type circles of kind specification material of the same race, check whether sealing surface damages, must repairing if any damage；
When (3-4-5) assembles upper cover, sealing surface must be cleaned out, and sealing gasket first is fixed on into upper cover or graphite-pipe
The sealing surface of plate has the region of sealing waterline, is inserted in the Ο type circles being ready for, then opposite according to dismounting upper cover handling
Upper cover handling in place, is directed at sealing surface, is hung upper cover with suspender by order, but suspender must not be too painstaking, and hoist cable stretches tight
Tight, four hoist cables must uniform force；
Stay bolt through upper cover flange, differential, shell flange bolt hole, now should be noted the pressure of differential by (3-4-6)
Tight nuts and washers will first be screwed on, and be adjusted to appropriate location；Four bolt positioning, adjustment can be first worn, in order to wear other spiral shells
Bolt.
(3-4-7) symmetrically and evenly tightens the nut of stay bolt outermost end, then tightens differential clamp nut again, tightens pressure
, it is necessary to which the filler in stuffing box is put well before blue clamp nut；
After the nut of (3-4-8) stay bolt is all tightened, check whether sealing pad position meets the requirements, bolt and nut stress
Uniformly whether, qualified rear tube side water flowing, pressurization, check at sealing whether there is seepage；Test pressure, which exceedes, uses pressure 0.05-
0.1MPa, it is not necessary to reach name plate rating.
When (3-4-9) drives again, when temperature is increased to 60-70 DEG C, inspection seals whether have seepage everywhere, if any oozing
Leakage needs emphasis to fasten blowby area bolt and nut, and other bolt and nuts also will be fastened suitably；
When (3-4-10) is dismantled and assembled low head, with reference to step (3-4-2)-(3-4-10).
The utility model uses dedusting and heat exchange element of the graphite-pipe as boiler smoke, because it has good thermal conductivity
Energy and low-affinity, particle dust can conduct oneself with dignity and separated under effect of inertia from flue gas, and will not be adhered to graphite tube wall
On, dedusting is thorough；The condensation of the hazardous mediums such as SO2, NO2 in flue gas nebulizes or liquid separates from flue gas, is sunk in heat exchanging segment
It is precipitated in shallow lake to housing or in exhaust pass in water-film Separator, reduces the discharge of harmful substance.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (7)
- A kind of 1. energy-saving graphite multitube smoke duster, it is characterised in that including housing, upper cover and low head, it is described on End socket is connected to the top of housing, and the low head is connected to the lower section of housing, and the lower section of the low head, which is provided with, removes ash bin, institute State except the lower end of ash bin is provided with ash disposal mouth, being provided with graphite in the housing restrains, and the joining place of the upper cover and housing is horizontal There is upper graphite tube plate, the joining place of the low head and housing is horizontal lower graphite tube plate, the upper and lower side point of the graphite tube bank It is not connected with upper graphite tube plate and lower graphite tube plate, and the tube side connection upper cover of graphite tube bank and the inner chamber of low head, The upper cover is provided with high-temperature flue gas entry, and the low head exports provided with low-temperature flue gas, the tube side of the graphite tube bank Interior flowing has flue gas；Flowing has recirculated water in the shell side of the housing, and the bottom of the housing is provided with circulating water intake, the top of the housing Provided with circulating water outlet；The outside of the low-temperature flue gas outlet is connected with exhaust pass, and the lower section of the exhaust pass is provided with the water desert for receiving condensation Deduster.
- 2. energy-saving graphite multitube smoke duster according to claim 1, it is characterised in that the graphite tube bank is selected Resin impregnating graphite-pipe.
- 3. energy-saving graphite multitube smoke duster according to claim 1, it is characterised in that the upper cover and housing Between by tetrafluoro packing, O-ring and differential combination sealing, and connected by flange.
- 4. energy-saving graphite multitube smoke duster according to claim 1, it is characterised in that the low head and housing Between be provided with polytetrafluoroethylene sealing gasket piece, be equipped with manhole on the upper cover and low head.
- 5. energy-saving graphite multitube smoke duster according to claim 1, it is characterised in that the circulating water outlet leads to Overheat water pipe is connected with water tank, and a wherein water side for the water tank is connected by deaerating type of cycles with boiler, and another water side leads to Cross hot water pipe with circulating water intake to be connected, water circulating pump is provided with circulating water intake on the hot water pipe, the housing Bottom is provided with cooling water inlet, and cold water pipe is connected on the water tank, valve is equipped with the hot-water line, hot water pipe and cold water pipe.
- 6. energy-saving graphite multitube smoke duster according to claim 5, it is characterised in that the water tank is provided with and put Blank pipe.
- 7. energy-saving graphite multitube smoke duster according to claim 1, it is characterised in that the outside of the housing is equal 4 ear formula support bases are furnished with, the top of the housing is connected with water level alarm by water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720208067.3U CN206715493U (en) | 2017-03-06 | 2017-03-06 | Energy-saving graphite multitube smoke duster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720208067.3U CN206715493U (en) | 2017-03-06 | 2017-03-06 | Energy-saving graphite multitube smoke duster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206715493U true CN206715493U (en) | 2017-12-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042032A (en) * | 2017-03-06 | 2017-08-15 | 江苏省特种设备安全监督检验研究院南通分院 | Energy-saving graphite multitube smoke duster, its method of work and its repair method |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107042032A (en) * | 2017-03-06 | 2017-08-15 | 江苏省特种设备安全监督检验研究院南通分院 | Energy-saving graphite multitube smoke duster, its method of work and its repair method |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20171208 |