CN103471409B - Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components - Google Patents
Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components Download PDFInfo
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- CN103471409B CN103471409B CN201310417692.5A CN201310417692A CN103471409B CN 103471409 B CN103471409 B CN 103471409B CN 201310417692 A CN201310417692 A CN 201310417692A CN 103471409 B CN103471409 B CN 103471409B
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Abstract
A dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components comprises a support, steam drums and a convection shaft. Super-heaters, evaporators and economizers are arranged successively in the convection shaft from a flue gas inlet to a flue gas outlet and are mainly composed of inlet and outlet headers and membrane wall heat transfer components. Inlet ends of the membrane wall heat transfer components are connected with the inlet headers, and outlet ends of the membrane wall heat transfer components are connected with the outlet headers. Each of the membrane wall heat transfer component comprises at least two heat transfer tubes and a heat transfer metal plate. The heat transfer tubes are arranged in parallel, and the heat transfer metal plates are arranged between the heat transfer tubes and welded with the two heat transfer tubes. Brusher soot cleaning devices comprising external transmission apparatuses and internal sooth cleaning apparatuses are arranged on the membrane wall heat transfer components. Each of the internal sooth cleaning apparatuses comprises a beam, two clamping arms and a guide mechanism. The two clamping arms are provided with metal steel wire cleaning balls and are arranged on two sides of the membrane wall heat transfer components and in contact with the heat transfer metal plates.
Description
Technical field:
The present invention relates to a kind of waste heat boiler, particularly a kind of two pressure vertical ore deposit heat waste heat boiler with membrane wall heat-exchanging component.
Background technology:
At present, a large amount of energy resource consumptions is needed in various field of industrial production, by various thermal power transfer equipment in production process, answer in equipment with energy equipment and chemistry side and produce and unemployed heat energy, and a large amount of various forms of waste heats can be produced in process of production, the source of waste heat mainly contains industrial exhaust gas waste heat, the waste heat of high-temperature product and slag, the waste heat of cooling medium, chemistry side answer generate in process abandon heat, combustible exhaust gas, waste material, the heat energy of waste liquid and waste vapour, the waste heat of waste water, and the evenly heat efficiency of Industrial Boiler only has 67%, remaining energy passes through the useless fume emission of high temperature in the middle of air, cause great waste.
The UTILIZATION OF VESIDUAL HEAT IN of Boiler Manufacturing Industry be energy-conservation at present in an important topic, it has very high economic benefit and social benefit.Such as, the smelting furnace UTILIZATION OF VESIDUAL HEAT IN in Boiler Manufacturing Industry, is converted to other energy by the used heat of being discharged by smelting furnace, as electric energy, steam-energy or directly go to drive other plant equipment and heat supply as power.
Mineral hot furnace generally divides 3 kinds of type of furnaces, and the first is Totally-enclosed-type, and the second is that low hood is type semienclosed, and the third is high petticoat pipe open type.The fuel gas that semi-hermetic stove contains due to it is very little, temperatures as high more than 400 DEG C, and the air be mixed into from fire door is more, and exhaust gas volumn is larger.Be applicable to adopting residual heat boiler for exchanging heat generating, the thermal efficiency can reach about 26% ~ 28%, but difficult point is in the dust of flue gas containing a large amount of SiO
2, granularity of dust is all less than 5 microns, be less than less than 2 microns account for 77%.The viscosity of these dust is very large, is very easy to stick to chimney, flue, metal tube surface, causes the heat exchange efficiency of heat-transfer surface sharply to reduce.The deashing device of current waste heat boiler heating surface, mainly contains vibration dust-cleaning, steel ball deashing, steam (air) blows ash, shock-wave ash-clearing etc.But these purge modes are all inapplicable through actual verification.
Such as, China national Department of Intellectual Property on January 13rd, 2010 disclose a key name for " a kind of power generation boiler for low-temperature flue gas waste heat in avasite heat furnace " publication number be CN201382702Y, its content is: this device is made up of boiler body, gas approach, superheater, evaporating area, soft water heater, water preheater, forced circulation pump, mechanical shaking device, snakelike tube bank, exhanst gas outlet.Wherein boiler body is transversal flow horizontal channel structure, and the both sides of boiler body arrange gas approach, exhanst gas outlet respectively, and boiler body sets gradually superheater, evaporating area, soft water heater and water preheater from gas approach to exhanst gas outlet; Boiler body lower end base arranges forced circulation pump, and the water circulation use forced circulation pump of evaporating area carries out forced circulation; The heating surface of boiler body adopts the snakelike tube bank of heavy wall of the vertical suspension arrangement of minor diameter, and wrong row's mode is arranged; Boiler heating surface is arranged the mechanical shaking device carrying out deashing.The weak point that this waste heat boiler exists is: heating surface adopts wrong row's mode to arrange, easy dust stratification, mechanical shaking device is adopted to carry out deashing, good for this nanoscale of mineral hot furnace, bonding capacity, high adsorption capacity, unsuitable sedimentation between Electrostatic Absorption and particulate dust ash-removal effect is poor, when dust deposit entrained in flue gas is on heat exchanger tube, vibration dust-cleaning can not be removed, and the lighter causes heat transfer effect to reduce, time serious, exhaust gases passes is blocked completely, cause boiler forced outage.
" residual heat boiler of steel ball dedusting type ore heat furnace " publication number that China national Department of Intellectual Property announces is 101701775A.This invention adopts furnace roof to be furnished with a steel ball sowing apparatus, arranges steel ball separated and collected device and carry out deashing below furnace bottom ash bucket.The weak point of this invention is: the steel ball sowing of this device inequality easily causes the dust stratification skewness on heating surface, affect the heat transfer efficiency of heat exchanger, dust stratification even may occur and form the situation that bulk makes heating surface lose efficacy in local, formation potential safety hazard.In addition, steel ball circulates in soot cleaning system, interim storage time very easily get rusty, caking of uniting, especially in flue gas containing H
2o, SO
2deng the situation of the ash content of gas, complicated ingredient.Steel ball is just difficult to eliminate once caking, can block steel ball sowing spout, steel ball conduit, maintenance difficulty are large.
Summary of the invention:
In view of this, be necessary to provide the two of band membrane wall heat-exchanging component that a kind of production cost is low, deashing is thorough, utilization rate of waste heat is high to press vertical ore deposit heat waste heat boiler.
A kind of two pressure vertical ore deposit heat waste heat boiler with membrane wall heat-exchanging component, comprise the support be made up of column and crossbeam, secondary middle pressure drum, low-pressure drum and to flow through shaft, secondary middle pressure drum, low-pressure drum is arranged on support, be arranged in support to flow through shaft, smoke inlet is connected to one end on the housing of flow through shaft, the other end of housing connects exhanst gas outlet, to being provided with time middle pressure superheater be fixed on beam in flow through shaft successively by smoke inlet to exhanst gas outlet, secondary middle pressure evaporimeter, secondary middle pressure economizer, low-pressure superheater, low pressure evaporator and low-pressure coal saver, described superheater, evaporimeter and economizer are primarily of entering, outlet header and membrane wall heat-exchanging component composition, the arrival end of membrane wall heat-exchanging component is connected with entrance header, the port of export of membrane wall heat-exchanging component is connected with outlet header, and enter, outlet header is all located on the crossbeam outside flow through shaft housing, membrane wall heat-exchanging component comprises at least two heat exchanger tubes and heat passes metallic plate, to be arranged side by side between heat exchanger tube and the port of export of a heat exchanger tube in adjacent two heat exchanger tubes is communicated with the arrival end of another heat exchanger tube, heat passes metallic plate and to be arranged between heat exchanger tube and weld with two heat exchanger tubes, and heat biography metallic plate is corresponding with the length of heat exchanger tube.Membrane wall heat-exchanging component is established brusher deashing device, described brusher deashing device comprises external transmission device and inner deashing device, described external transmission device is connected with inner deashing device, inner deashing device comprises crossbeam, two clamping limb and guides being provided with metal steel wire cleaning ball, two clamping limbs are fixedly connected with beam vertical and two clamping limbs are parallel, two gripping arm are in the both sides of membrane wall heat-exchanging component and pass metallic plate with the heat exchanger tube of membrane wall heat-exchanging component and heat and contact, it is mutually vertical that the heat exchanger tube of clamping limb and membrane wall heat-exchanging component and heat pass metallic plate, the both sides of membrane wall heat-exchanging component all arrange guide, and guide is positioned at the below of clamping limb, and clamping limb contacts with guide, and the channeling direction of guide is identical with the bearing of trend that heat exchanger tube and heat pass metallic plate, the entrance header of secondary middle pressure economizer is connected with supply line, and the outlet header of secondary middle pressure economizer is connected with secondary middle pressure drum by pipeline, secondary middle pressure drum is connected by the entrance header of down-comer with secondary middle pressure evaporimeter, and the outlet header of secondary middle pressure evaporimeter is connected with secondary middle pressure drum by tedge, forms closed circuit, secondary middle pressure drum is also connected with the entrance header of secondary middle pressure superheater by pipeline, and the outlet header of secondary middle pressure superheater is sent by pipeline, the entrance header of low-pressure coal saver is connected with supply line, and the outlet header of low-pressure coal saver is connected with low-pressure drum by pipeline, low-pressure drum is connected with the entrance header of low pressure evaporator by down-comer, and the outlet header of low pressure evaporator is connected with low-pressure drum by tedge, forms closed circuit, low-pressure drum is also connected with the entrance header of low-pressure superheater by pipeline, and the outlet header of low-pressure superheater is sent by pipeline, clamping limb comprises two holders, inner deashing device also comprises steel wire lump state keeper, two ends and the metal steel wire cleaning ball of steel wire lump state keeper abut against, be provided with that the metal steel wire cleaning ball of steel wire lump state keeper is equally spaced to be arranged between two holders, steel wire lump state keeper and metal steel wire cleaning ball are fixedly clamped by two holders, and steel wire lump state keeper is vertical with holder, the distance between two adjacent steel wire lump state keepers is corresponding with the diameter of heat exchanger tube to be cleaned, steel wire lump state keeper comprises support member and fitting, and what the two ends of support member were corresponding arranges described fitting, and fitting and support member are mutually vertical, and fitting and metal steel wire cleaning ball abut against, and keeps extending to make metal steel wire cleaning ball.
The present invention compared with prior art tool has the following advantages: described superheater, in evaporimeter and economizer, membrane wall heat-exchanging component passes metallic plate primarily of heat exchanger tube and heat and forms, to be arranged side by side between heat exchanger tube and the port of export of a heat exchanger tube in adjacent two heat exchanger tubes is communicated with the arrival end of another heat exchanger tube, heat passes metallic plate and to be arranged between heat exchanger tube and to weld with two heat exchanger tubes, it is corresponding with the length of heat exchanger tube that heat passes metallic plate, so can increase the heat exchange area of membrane wall heat-exchanging component, membrane wall heat-exchanging component establishes brusher deashing device simultaneously, the external transmission device of described brusher deashing device is connected with inner deashing device, two gripping arm of inner deashing device are in the both sides of membrane wall heat-exchanging component and pass metallic plate with the heat exchanger tube of membrane wall heat-exchanging component and heat and contact, it is mutually vertical that the heat exchanger tube of clamping limb and membrane wall heat-exchanging component and heat pass metallic plate, the both sides of membrane wall heat-exchanging component all arrange guide, guide is positioned at the below of clamping limb, and clamping limb contacts with guide, metal steel wire cleaning ball on clamping limb passes metallic plate with heat exchanger tube and heat and directly contacts, dust is brushed off, the heat transfer coefficient of mineral hot furnace waste heat boiler is improved.Visible the present invention can improve steam production, reduces toxic emission temperature.In addition, present invention achieves external transmission device is separated interlock mode with inner deashing device, avoid the problem that too much seal is set, simple to operate, improve ash-removal effect, saved operating cost.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of two pressure vertical ore deposit heat waste heat boiler of the band membrane wall heat-exchanging component of a better embodiment.
Accompanying drawing 2 is structural representations of membrane wall heat-exchanging component in Fig. 1.
Accompanying drawing 3 is structural representations of inner deashing device in Fig. 1.
Accompanying drawing 4 is structural representations of steel wire lump state keeper in Fig. 3.
Accompanying drawing 5 is another schematic diagrames of steel wire lump state keeper structure in Fig. 3.
Accompanying drawing 6 is structural representations of holder and support member in Fig. 3.
Accompanying drawing 7 is structural representations of the steel wire lump state keeper structure with fitting.
In figure: two pressure vertical ore deposit heat waste heat boiler 10 of band membrane wall heat-exchanging component, support 20, secondary middle pressure drum 30, low-pressure drum 40, to flow through shaft 50, housing 51, secondary middle pressure superheater 52, entrance header 520, outlet header 521, membrane wall heat-exchanging component 522, heat exchanger tube 5220, heat passes metallic plate 5221, secondary middle pressure evaporimeter 53, entrance header 530, outlet header 531, membrane wall heat-exchanging component 532, heat exchanger tube 5320, heat passes metallic plate 5321, secondary middle pressure economizer 54, entrance header 540, outlet header 541, membrane wall heat-exchanging component 542, heat exchanger tube 5420, heat passes metallic plate 5421, low-pressure superheater 55, entrance header 550, outlet header 551, membrane wall heat-exchanging component 552, heat exchanger tube 5520, heat passes metallic plate 5521, low pressure evaporator 56, entrance header 560, outlet header 561, membrane wall heat-exchanging component 562, heat exchanger tube 5620, heat passes metallic plate 5621, low-pressure coal saver 57, entrance header 570, outlet header 571, membrane wall heat-exchanging component 572, heat exchanger tube 5720, heat passes metallic plate 5721, brusher deashing device 60, , external transmission device 61, inner deashing device 62, crossbeam 620, metal steel wire cleaning ball 621, clamping limb 622, holder 6220, fixing hole 6221, locating slot 6222, guide 623, steel wire lump state keeper 624, support member 6240, keeper 62400, elastic component 62401, fitting 6241, fixing hole 6242, arc fitting 6243, smoke inlet 80, exhanst gas outlet 81.
Detailed description of the invention:
Referring to Fig. 1, two pressure vertical ore deposit heat waste heat boiler 10 of band membrane wall heat-exchanging component comprise the support 20 be made up of column and crossbeam, secondary middle pressure drum 30, low-pressure drum 40, to flow through shaft 50 and brusher deashing device 60.Secondary middle pressure drum 30, low-pressure drum 40 are arranged on support 20, be arranged in support 20 to flow through shaft 50, smoke inlet 80 is connected to one end of the housing 51 of flow through shaft 50, the other end of housing 51 connects exhanst gas outlet 81, be wherein furnace wall to the housing 51 of flow through shaft 50, namely establish rock wool heat-preservation material in the middle of inside and outside two backplates, inner casing is provided with refractory concrete towards the side in well chamber; Be fixed on beam to being provided with successively by smoke inlet 80 to exhanst gas outlet 81 in flow through shaft 50, described superheater, evaporimeter and economizer primarily of entering, outlet header and membrane wall heat-exchanging component composition.Secondary middle pressure superheater 52, secondary middle pressure evaporimeter 53, secondary middle pressure economizer 54, low-pressure superheater 55, low pressure evaporator 56 and low-pressure coal saver 57 all install described brusher deashing device 60, described brusher deashing device 60 comprises external transmission device 61 and inner deashing device 62, external transmission device 61 is fixed on support 20, and external transmission device 61 is connected with inner deashing device 62, inner deashing device 62 respectively corresponding to be arranged on time in pressure superheater 52, secondary middle pressure evaporimeter 53, secondary middle pressure economizer 54, low-pressure superheater 55, on low pressure evaporator 56 and low-pressure coal saver 57.External transmission device 61 can be motor or hydraulic jack, when external transmission device 61 is motor, adopts lead screw transmission mode, wire rope gearing mode, sprocket wheel chain transmission mode to be connected with inner deashing device 62.
The entrance header 540 of secondary middle pressure economizer 54 is connected with supply line, the entrance header 540 of secondary middle pressure economizer 54 by time in the membrane wall heat-exchanging component 542 of pressure economizer 54 press the outlet header 541 of economizer 54 to be connected with time middle, the outlet header 541 of secondary middle pressure economizer 54 is also connected with secondary middle pressure drum 30 by pipeline; Secondary middle pressure drum 30 is connected by the entrance header 530 of down-comer with secondary middle pressure evaporimeter 53, the entrance header 530 of secondary middle pressure evaporimeter 53 by time in the membrane wall heat-exchanging component 532 of pressure evaporimeter 53 press the outlet header 531 of evaporimeter 53 to be connected with time middle, the outlet header 531 of secondary middle pressure evaporimeter 53 is also connected with secondary middle pressure drum 30 by tedge, forms closed circuit; Secondary middle pressure drum 30 is also connected with the entrance header 520 of secondary middle pressure superheater 52 by pipeline, the entrance header 520 of secondary middle pressure superheater 52 by time in the membrane wall heat-exchanging component 522 of pressure superheater 52 press the outlet header 521 of superheater 52 to be connected with time middle, the outlet header 521 of secondary middle pressure superheater 52 is also sent by pipeline, as main vapour be used for pushing turbine generating or production and application; The entrance header 570 of low-pressure coal saver 57 is connected with supply line, the entrance header 570 of low-pressure coal saver 57 is also connected with the outlet header 571 of low-pressure coal saver 57 by the membrane wall heat-exchanging component 572 of low-pressure coal saver 57, and the outlet header 571 of low-pressure coal saver 57 is also connected with low-pressure drum 40 by pipeline; Low-pressure drum 40 is connected with the entrance header 560 of low pressure evaporator 56 by down-comer, the entrance header 560 of low pressure evaporator 56 is also connected with the outlet header 561 of low pressure evaporator 56 by the membrane wall heat-exchanging component 562 of low pressure evaporator 56, the outlet header 561 of low pressure evaporator 56 is also connected with low-pressure drum 40 by tedge, forms closed circuit; Low-pressure drum 40 is also connected with the entrance header 550 of low-pressure superheater 55 by pipeline, the entrance header 550 of low-pressure superheater 55 is also connected with the outlet header 551 of low-pressure superheater 55 by the membrane wall heat-exchanging component 552 of low-pressure superheater 55, the outlet header 551 of low-pressure superheater 55 is also sent by pipeline, is used for pushing turbine generating or production and application as filling.Wherein, above-mentioned entrance header, outlet header are all located on the crossbeam outside the housing 51 of flow through shaft 50, and above-mentioned each membrane wall heat-exchanging component is arranged in the housing 51 to flow through shaft 50, and the structure of above-mentioned each membrane wall heat-exchanging component is identical.
Further, membrane wall heat-exchanging component 522 comprises at least two heat exchanger tubes 5220 and heat passes metallic plate 5221, membrane wall heat-exchanging component 532 comprises at least two heat exchanger tubes 5320 and heat passes metallic plate 5321, membrane wall heat-exchanging component 542 comprises at least two heat exchanger tubes 5420 and heat passes metallic plate 5421, membrane wall heat-exchanging component 552 comprises at least two heat exchanger tubes 5520 and heat passes metallic plate 5521, membrane wall heat-exchanging component 562 comprises at least two heat exchanger tubes 5620 and heat passes metallic plate 5621, membrane wall heat-exchanging component 572 comprises at least two heat exchanger tubes 5720 and heat passes metallic plate 5721, membrane wall heat-exchanging component 542 below in the following middle pressure economizer 54 is example, further illustrate membrane wall heat-exchanging component structure, referring to Fig. 2, membrane wall heat-exchanging component 542 comprises at least two heat exchanger tubes 5420 and heat passes metallic plate 5421, to be arranged side by side between heat exchanger tube 5420 and the port of export of a heat exchanger tube in adjacent two heat exchanger tubes 5420 is communicated with the arrival end of another heat exchanger tube 5420, heat passes metallic plate 5421 and to be arranged between heat exchanger tube 5420 and to weld with two heat exchanger tubes 5420, and it is corresponding with the length of heat exchanger tube 5420 that heat passes metallic plate 5421.The inside deashing device 62 of brusher deashing device 60 is slidably arranged on membrane wall heat-exchanging component 542.
Wherein, please refer to the inner deashing device 62 of Fig. 3 and comprise clamping limb 622 and the guide 623 that 620, two, crossbeam is provided with metal steel wire cleaning ball 621, two clamping limbs 622 and crossbeam 620 be vertical to be fixedly connected with and two clamping limbs 622 are parallel, two clamping limbs 622 are clamped in the both sides of membrane wall heat-exchanging component 542 and pass metallic plate 5421 with the heat exchanger tube 5420 of membrane wall heat-exchanging component 542 and heat and contact, the heat exchanger tube 5420 of clamping limb 622 and membrane wall heat-exchanging component 542 and hot to pass metallic plate 5421 mutual vertical; The both sides of membrane wall heat-exchanging component 542 all arrange guide 623, guide 623 is positioned at the below of clamping limb 622, and clamping limb 622 contacts with guide 623, the channeling direction of guide 623 is identical with the bearing of trend that heat exchanger tube 5420 and heat pass metallic plate 5421.
Clamping limb 622 comprises two holders 6220, inner deashing device 62 also comprises steel wire lump state keeper 624, two ends and the metal steel wire cleaning ball 621 of steel wire lump state keeper 624 abut against, be provided with that the metal steel wire cleaning ball 621 of steel wire lump state keeper 624 is equally spaced to be arranged between two holders 6220, steel wire lump state keeper 624 and metal steel wire cleaning ball 621 are fixedly clamped by two holders 6220, and steel wire lump state keeper 624 is vertical with holder 6220, distance between two adjacent steel wire lump state keepers 624 is corresponding with the diameter of heat exchanger tube to be cleaned.
In the present embodiment, referring to Fig. 4 to Fig. 6, steel wire lump state keeper 624 comprises support member 6240 and fitting 6241, what the two ends of support member 6240 were corresponding arranges described fitting 6241, fitting 6241 is mutually vertical with support member 6240, fitting 6241 and metal steel wire cleaning ball 621 abut against, and keep extending to make metal steel wire cleaning ball 621.
Wherein, fixing hole 6242 is provided with in the middle part of support member 6240, the position faced with the fixing hole 6242 on support member 6240 of two holders 6220 also offers fixing hole 6221, coordinated with nut again, so that the steel wire lump state keeper 624 be arranged between two holders 6220 and metal steel wire cleaning ball 621 are fixedly clamped through the fixing hole 6242 of support member 6240 and the fixing hole 6221 of holder 6220 by bolt.Holder 6220 is provided with locating slot 6222, in the locating slot 6222 being embedded in two holders 6220 of support member 6240 correspondence, to realize quick position, the bottom land of locating slot 6222 is arranged described fixing hole 6221.
Support member 6240 comprises keeper 62400 and two elastic components 62401, is provided with fixing hole 6242 in the middle part of keeper 62400, and corresponding being connected with elastic component 62401 in two ends of keeper 62400, the other end of elastic component 62401 is also connected with fitting 6241.Elastic component 62401 can be spring or be shell fragment.In the locating slot 6222 being embedded in two holders 6220 of keeper 62400 correspondence.Because steel wire lump state keeper 624 and metal steel wire cleaning ball 621 abut against, make metal steel wire cleaning ball 621 can keep fixing shape for a long time, to overcome because of the flexibility of metal steel wire cleaning ball 621 self and Action of Gravity Field and at high temperature long-play and cause the problem that cannot return to original shape or down droop.
Referring to Fig. 7, steel wire lump state keeper 624 also comprises four arc fittings 6243, one end of support member 6240 is also corresponding to be fixedly connected with two arc fittings 6243, the other end of support member 6240 is also corresponding to be fixedly connected with two other arc fitting 6243, the other end of four arc fittings 6243 is all near holder 6220, arc fitting 6243 also abuts with metal steel wire cleaning ball 621, produces distortion and match with the outer wall of heat exchanger tube to be cleaned to contact to make metal steel wire cleaning ball 621.Such as, arc fitting 6243 is connected with one end of elastic component 62401, and one end be connected with arc fitting 6243 of elastic component 62401 is also connected with fitting 6241 simultaneously.
Claims (6)
1. the two pressures vertical ore deposit heat with membrane wall heat-exchanging component uses She's heat boiler, it is characterized in that: comprise the support be made up of column and crossbeam, secondary middle pressure drum, low-pressure drum and to flow through shaft, secondary middle pressure drum, low-pressure drum is arranged on support, be arranged in support to flow through shaft, smoke inlet is connected to one end on the housing of flow through shaft, the other end of housing connects exhanst gas outlet, to being provided with time middle pressure superheater be fixed on beam in flow through shaft successively by smoke inlet to exhanst gas outlet, secondary middle pressure evaporimeter, secondary middle pressure economizer, low-pressure superheater, low pressure evaporator and low-pressure coal saver, described superheater, evaporimeter and economizer are primarily of entering, outlet header and membrane wall heat-exchanging component composition, the arrival end of membrane wall heat-exchanging component is connected with entrance header, the port of export of membrane wall heat-exchanging component is connected with outlet header, and enter, outlet header is all located on the crossbeam outside flow through shaft housing, membrane wall heat-exchanging component comprises at least two heat exchanger tubes and heat passes metallic plate, to be arranged side by side between heat exchanger tube and the port of export of a heat exchanger tube in adjacent two heat exchanger tubes is communicated with the arrival end of another heat exchanger tube, heat passes metallic plate and to be arranged between heat exchanger tube and weld with two heat exchanger tubes, and heat biography metallic plate is corresponding with the length of heat exchanger tube, membrane wall heat-exchanging component is established brusher deashing device, described brusher deashing device comprises external transmission device and inner deashing device, described external transmission device is connected with inner deashing device, inner deashing device comprises crossbeam, two clamping limb and guides being provided with metal steel wire cleaning ball, two clamping limbs are fixedly connected with beam vertical and two clamping limbs are parallel, two gripping arm are in the both sides of membrane wall heat-exchanging component and pass metallic plate with the heat exchanger tube of membrane wall heat-exchanging component and heat and contact, it is mutually vertical that the heat exchanger tube of clamping limb and membrane wall heat-exchanging component and heat pass metallic plate, the both sides of membrane wall heat-exchanging component all arrange guide, and guide is positioned at the below of clamping limb, and clamping limb contacts with guide, and the channeling direction of guide is identical with the bearing of trend that heat exchanger tube and heat pass metallic plate, the entrance header of secondary middle pressure economizer is connected with supply line, and the outlet header of secondary middle pressure economizer is connected with secondary middle pressure drum by pipeline, secondary middle pressure drum is connected by the entrance header of down-comer with secondary middle pressure evaporimeter, and the outlet header of secondary middle pressure evaporimeter is connected with secondary middle pressure drum by tedge, forms closed circuit, secondary middle pressure drum is also connected with the entrance header of secondary middle pressure superheater by pipeline, and the outlet header of secondary middle pressure superheater is sent by pipeline, the entrance header of low-pressure coal saver is connected with supply line, and the outlet header of low-pressure coal saver is connected with low-pressure drum by pipeline, low-pressure drum is connected with the entrance header of low pressure evaporator by down-comer, and the outlet header of low pressure evaporator is connected with low-pressure drum by tedge, forms closed circuit, low-pressure drum is also connected with the entrance header of low-pressure superheater by pipeline, and the outlet header of low-pressure superheater is sent by pipeline, clamping limb comprises two holders, inner deashing device also comprises steel wire lump state keeper, two ends and the metal steel wire cleaning ball of steel wire lump state keeper abut against, be provided with that the metal steel wire cleaning ball of steel wire lump state keeper is equally spaced to be arranged between two holders, steel wire lump state keeper and metal steel wire cleaning ball are fixedly clamped by two holders, and steel wire lump state keeper is vertical with holder, the distance between two adjacent steel wire lump state keepers is corresponding with the diameter of heat exchanger tube to be cleaned, steel wire lump state keeper comprises support member and fitting, and what the two ends of support member were corresponding arranges described fitting, and fitting and support member are mutually vertical, and fitting and metal steel wire cleaning ball abut against, and keeps extending to make metal steel wire cleaning ball.
2. two pressures vertical ore deposit heat of band membrane wall heat-exchanging component according to claim 1 uses She's heat boiler, it is characterized in that: in the middle part of support member, be provided with fixing hole, the position faced with the fixing hole on support member of two holders also offers fixing hole, coordinated with nut again, so that the steel wire lump state keeper be arranged between two holders and metal steel wire cleaning ball are fixedly clamped through the fixing hole of support member and the fixing hole of holder by bolt.
3. two pressures vertical ore deposit heat of band membrane wall heat-exchanging component according to claim 2 uses She's heat boiler, it is characterized in that: support member comprises keeper and two elastic components, fixing hole is provided with in the middle part of keeper, corresponding being connected with elastic component in two ends of keeper, the other end of elastic component is also connected with fitting.
4. two pressures vertical ore deposit heat of band membrane wall heat-exchanging component according to claim 3 uses She's heat boiler, it is characterized in that: elastic component is spring or shell fragment.
5. two pressures vertical ore deposit heat of band membrane wall heat-exchanging component according to claim 1 uses She's heat boiler, it is characterized in that: steel wire lump state keeper also comprises four arc fittings, one end of support member is also corresponding to be fixedly connected with two arc fittings, the other end of support member is also corresponding to be fixedly connected with two other arc fitting, the other end of four arc fittings is all near holder, arc fitting also abuts with metal steel wire cleaning ball, produces distortion and match with the outer wall of heat exchanger tube to be cleaned to contact to make metal steel wire cleaning ball.
6. two pressures vertical ore deposit heat of band membrane wall heat-exchanging component according to claim 1 uses She's heat boiler, it is characterized in that: holder is provided with locating slot, what support member was corresponding is embedded in the locating slot of two holders, to realize quick position, the bottom land of locating slot arranges described fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310417692.5A CN103471409B (en) | 2013-09-15 | 2013-09-15 | Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310417692.5A CN103471409B (en) | 2013-09-15 | 2013-09-15 | Dual-pressure vertical submerged arc furnace waste heat boiler with membrane wall heat transfer components |
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| CN103471409A CN103471409A (en) | 2013-12-25 |
| CN103471409B true CN103471409B (en) | 2015-06-10 |
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| CN105485653B (en) * | 2014-10-07 | 2018-02-02 | 宁夏天纵泓光余热发电技术有限公司 | Membrane wall heat-exchanging component with mechanical airflow formula deashing function |
| CN104266498B (en) * | 2014-10-07 | 2016-06-08 | 宁夏天纵泓光余热发电技术有限公司 | There are the double; two of mechanical airflow formula deashing function and press vertical ore deposit heat waste heat boiler |
| CN104792070B (en) * | 2015-04-28 | 2017-05-17 | 徐翔 | Evaporator with heat exchange interface capable of being automatically cleaned |
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| EP0774640A1 (en) * | 1995-11-15 | 1997-05-21 | Wehrle-Werk Ag | Pipe cleaning device |
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