CN105757709B - Two-stage heat reclamation type cyclone dust removal coal-burning boiler - Google Patents
Two-stage heat reclamation type cyclone dust removal coal-burning boiler Download PDFInfo
- Publication number
- CN105757709B CN105757709B CN201610095363.7A CN201610095363A CN105757709B CN 105757709 B CN105757709 B CN 105757709B CN 201610095363 A CN201610095363 A CN 201610095363A CN 105757709 B CN105757709 B CN 105757709B
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- CN
- China
- Prior art keywords
- clip
- boiler
- air
- shaft
- fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
- F23L17/005—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues using fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a kind of two-stage heat reclamation type cyclone dust removal coal-burning boiler, the high-temperature tail gas pipe of boiler body connects air-introduced machine with cyclone dust collectors through air preheat plate heat exchanger, water preheating tubular heat exchanger tube side；High-order soft water pond is after water preheating tubular heat exchanger shell side preheating by high pressure pump system to boiler water supply；The shaft coupling and fan shaft and draught fan impeller and fan shaft of the air-introduced machine are all made of Screw assembly, and thread rotary orientation is the direction with work and carrying automatically lock；Copper-lead torsion composite pad is compressed rear fan axis and forms screw thread rigid connection by draught fan impeller；Clip part makes shaft coupling and the fan shaft other end also constitute rigid connection.The present invention not only realizes the two-stage recuperation of heat and purified treatment of boiler exhaust gas, more importantly significantly take on a new look the dismounting technology of boiler induced-draft fan, it can effectively solve boiler induced-draft fan Screw assembly continuous automatically lock problem not easy to disassemble under load effect, the convenient disassembly after being particularly suitable for large-sized boiler blower screw-threaded coupling.
Description
Technical field
The present invention relates to a kind of air-introduced machines convenient for the two-stage heat reclamation type cyclone dust removal coal-burning boiler of dismantling and maintenance.
Background technique
Boiler is very widely used thermodynamic apparatus, to boiler carry out air-supply and dedusting all be unable to do without blower it is long when
Between run, therefore, blower is the key equipment of boiler, and the tonnage of boiler is bigger, and used blower is also bigger, common blower
Structure is typically all that fan shaft one end is draught fan impeller, and it is often shaft coupling that the other end, which is motor power input terminal,.Due to boiler
Interior blower is typically all long-time continuous operation, so bearing is easy to damage, replacement bearing generally need to first dismantle draught fan impeller with
The shaft coupling of the other end, but the existing boiler air arbor and assembly of draught fan impeller, shaft coupling belongs to typical axis, hole interference is matched
It closes, and carrying transmission is carried out by key.It is higher to be interference fitted usual requirement on machining accuracy, and turns in conjunction with key connection to realize
Square bearing function, assembly generally all need to load very big extruding force, if dismounting is not all very square without professional equipment and tool
Just.
Being threadedly coupled has that the processing is simple, assembly is convenient, while also having unidirectional carrying torque functions, therefore, in boiler
If fan shaft with can be using being threadedly coupled and realize transmission in the connection in hole, it is all more convenient to be allowed to assembly or disassembly, then has
Higher practical value and market application prospect.In actual axis and hole cooperation motion thread assembly, held greatly to be able to achieve
Functional requirement is carried, the scantling of thread spindle similar nut member with what is matched is all larger, screws in assembly often all also
It is very easily convenient, and it is able to achieve the automatic continuous locking of bearing capacity in use, thus it is very reliable, but in disassembly,
Assembly is often very tight, and disassembly is very difficult, if simple easy removal can be realized under these conditions, it appears especially heavy
It wants.
On the other hand, good recuperation of heat and dedusting are carried out to boiler, is of great significance for energy-saving and emission-reduction, meets me
The fundamental state policy of state's present construction stage resource-conserving and environmentally friendly amphitypy society.
Summary of the invention
The technical problem to be solved in the present invention is to overcome the shortcomings of the prior art and provide a kind of simple and practical in structure two
Grade heat reclamation type cyclone dust removal coal-burning boiler.
In order to overcome the deficiencies of the prior art, the present invention takes following technical scheme:
A kind of two-stage heat reclamation type cyclone dust removal coal-burning boiler, including boiler body, it is characterised in that: the height of boiler body
Warm offgas duct connects air-introduced machine with cyclone dust collectors through air preheat plate heat exchanger, water preheating tubular heat exchanger tube side；Air
It preheats plate heat exchanger air inlet and connects air blower, air outlet connects boiler body；High-order soft water pond is through water preheating tubulation heat exchange
By high pressure pump system to boiler water supply after the preheating of device shell side；The air-introduced machine includes draught fan impeller, bearing, fan shaft and shaft coupling
Device, shaft coupling and fan shaft and draught fan impeller and fan shaft are all made of Screw assembly, and thread rotary orientation is automatic with carrying with work
The direction of locking；Draught fan impeller is similar to nut by being threadedly coupled with fan shaft and impeller plain washer, copper-lead being reversed composite pad
It compresses, draught fan impeller and fan shaft one end form screw thread rigid connection；Clip part is inserted in the fan shaft other end, then by shaft coupling
Plain washer is inserted in fan shaft, is then threaded into the shaft coupling of similar nut, then rationally all locking, makes clip part and similar nut
Shaft coupling and the fan shaft other end also constitute rigid connection.
Copper-lead torsion composite pad be punch process at copper packing, it is outer to be with fin then compound easily in copper packing two sides
Molten lead alloy washer.
The clip part is made of clip, clip ear, clip pad and bolt, and clip section is wedge shape, by two semicircles
Ring clip body is formed to opening structure, and clip pad opens elliptical aperture to enhance axial elasticity, and it is planar structure that clip, which pads both ends, convenient for
The cooperation of shaft shoulder plane, clip are passed through the hole on clip ear using bolt, are assemblied on clip pad and are integrally formed.
The air outlet of the air-introduced machine connects chimney.
Boiler work when high-temperature tail gas extracted out by pipeline by air-introduced machine, first air preheat plate heat exchanger with blast
The air of boiler exchanges heat, and realizes that the recuperation of heat of level-one tail improves boiler blast temperature and promotes boiler coal combustion, then again by upper
Across the tube side of water preheating tubular heat exchanger under and, overflowed with shell side bottom pipe into, shell side upper pipe and from high-order soft
The softened water in pond carries out counterflow heat exchange, and the tail gas after the discharge recuperation of heat heat exchange of tubular heat exchanger lower part passes through cyclone dust collectors again
Then purified treatment is pumped by air-introduced machine and is finally emptied by chimney, pass through high pressure pump system by the softened water of pre-heating temperature elevation
It is conveyed to boiler water supply, realizes that tail heat recycles once again and realizes energy-saving and emission-reduction, tail gas discharge is able to cyclone cleaning processing.
When boiler induced-draft fan need to be dismantled and be overhauled, composite pad, clip part are reversed using the copper-lead of innovative design, is passed through
Operation readiness can simply eliminate similar nut member to the pressure of screw shaft shoulder end face, and at this moment nut is in screw part and unloads
Carry vacant state, dismantling becomes simple and convenient as Screw assembly, for solve Screw assembly under load effect constantly from
Dynamic locking, technical problem not easy to disassemble, in large-sized boiler axes of blower component screw-threaded coupling field, such function seems
It is particularly important.
When draught fan impeller needs to dismantle but is very difficult, copper-lead is reversed among Composition spacer using oxy arc
Copper packing carries out oxy arc heat treatment, and since the conductivity of heat of copper is fabulous, and the fusing point of metal is lower, and metal is heated after heating
It melts, the compression tensile force of draught fan impeller and shaft shoulder step completely eliminates, and so that draught fan impeller is in complete vacant state, especially
It is readily disassembled.
When the joint member of similar nut needs to dismantle but is very difficult, bolt is removed with spanner, because of two
Semicircular ring clip body is that can fast be connected with the flat tool in one end from two clip ears to opening structure and clip body section is wedge shape
Engagement is held together place and is easily pried open, and clip easy removal is got off, clip pad returns to relaxed state, makes joint member and shaft shoulder end face
Locking after tensile force completely eliminate, so that the joint member of similar nut is in complete vacant state, be especially susceptible to tear open
It unloads.
The present invention not only realizes the two-stage recuperation of heat and purified treatment of boiler exhaust gas, it is often more important that significantly takes on a new look
The dismounting technology of boiler induced-draft fan can effectively solve boiler induced-draft fan Screw assembly continuous automatically lock under load effect and be not easy
The problem of disassembly, the convenient disassembly after being particularly suitable for large-sized boiler blower screw-threaded coupling, effect is especially pronounced, with prior art phase
Than beneficial effects of the present invention also reside in:
1, do not change the feature of Screw assembly, Pot metal composite pad, clip pad and clip need to only be added, it is at low cost also special
It is not easily achieved；2, Pot metal composite pad, clip pad can play good Stress decomposition, the carrying energy of effective enhancing structure
Power, clip pad, which opens elliptical aperture, can effectively enhance clip pad axial elasticity；3, it is cleverly heated with Pot metal composite pad very much
The Assembly And Disassembly of design and clip, realizes the tensioning and relaxation function of axial accessory, and effectively quick eliminate is locked similar to nut
Tensile force, realize that the component rapid and convenient of especially tight similar nut member Screw assembly is dismantled；4, clip pad and clip
Wedge-shaped assembling structure uses convenient for quick assembly and disassembly repeatedly.
Detailed description of the invention
Fig. 1 is planar structure schematic diagram of the invention.
Fig. 2 is the planar structure schematic diagram of air-introduced machine.
Fig. 3 is the structural schematic diagram of copper-lead torsion composite pad.
Fig. 4 is the assembling structure schematic diagram of clip part.
Fig. 5 is the fractionation structural representation of clip part.
Fig. 6 is the structural schematic diagram of clip pad.
Each label indicates in figure:
A, boiler induced-draft fan；1, boiler body；2, air preheat plate heat exchanger；3, air blower；4, water preheating tubulation changes
Hot device；5, cyclone dust collectors；6, chimney；8, high-order soft water pond；31, draught fan impeller；32, copper-lead reverses composite pad；33, bearing；
34, fan shaft；35, shaft coupling；36, clip part；38, fusible lead alloy washer；39, copper packing and fin；41, clip；42, block
Bind round ear；43, clip pad；44, oval aperture；45, bolt.
Specific embodiment
Now in conjunction with attached drawing, the present invention is further elaborated with.
As shown in Figure 1, Figure 2, the cyclone dust removal coal-burning boiler of two-stage heat reclamation type shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, including boiler master
Body 1, the high-temperature tail gas pipe of boiler body is through air preheat plate heat exchanger 2, water preheating 4 tube side of tubular heat exchanger and cyclone dust removal
Device 5 connects air-introduced machine A；2 air inlet of air preheat plate heat exchanger connects air blower 3, and air outlet connects boiler body 1；It is high-order
Soft water pond 8 is after water preheating 4 shell side of tubular heat exchanger preheating by high pressure pump system to boiler water supply；The air-introduced machine A includes
Draught fan impeller 31, bearing 33, fan shaft 34 and shaft coupling 35, shaft coupling 35 and fan shaft 34 and draught fan impeller 31 and fan shaft 34
It is all made of Screw assembly, thread rotary orientation is the direction with work and carrying automatically lock；Draught fan impeller 31 similar to nut by with
Fan shaft 34 is threadedly coupled and compresses impeller plain washer, copper-lead torsion composite pad 32, draught fan impeller 31 and 34 one end of fan shaft
Form screw thread rigid connection；Clip part 36 is inserted in 34 other end of fan shaft, then shaft coupling plain washer is inserted in fan shaft, then
The shaft coupling 35 of similar nut is screwed in, then rationally all locking, makes the shaft coupling 35 and blower of clip part 36 and similar nut
34 other end of axis also constitutes rigid connection.
Copper-lead torsion composite pad 32 be punch process at copper packing, it is outer to be with fin 39 then multiple in copper packing two sides
Close fusible lead alloy washer 38.
The clip part 36 is made of clip 41, clip ear 42, clip pad 43 and bolt 45, and clip section is wedge shape,
It is made of two semicircular ring clip bodies to opening structure, clip pad 43 opens elliptical aperture 44 to enhance axial elasticity, and clip pads 43 both ends
For planar structure, convenient for cooperating with shaft shoulder plane, clip passes through the hole on clip ear 42 using bolt 45, is assemblied in clip pad 43
On be integrally formed.
The air outlet of the air-introduced machine A connects chimney 6.
High-temperature tail gas is extracted out by pipeline by air-introduced machine A when boiler works, first in air preheat plate heat exchanger 2 and drum
The air for entering boiler exchanges heat, realize the recuperation of heat of level-one tail improve boiler blast temperature promote boiler coal combustion, then again by
It is upper and under across water preheating tubular heat exchanger 4 tube side, overflowed and into, shell side upper pipe from a high position with shell side bottom pipe
The softened water in soft water pond 8 carries out counterflow heat exchange, and the tail gas after the discharge recuperation of heat heat exchange of 4 lower part of tubular heat exchanger is removed by whirlwind again
5 purified treatment of dirt device, is then pumped by air-introduced machine A and is finally emptied by chimney 6, passes through high pressure by the softened water of pre-heating temperature elevation
Pumping system is conveyed to boiler water supply, realizes that tail heat recycles once again and realizes energy-saving and emission-reduction, tail gas discharge is able to cyclone cleaning processing.
When boiler induced-draft fan A need to be dismantled and be overhauled, composite pad 32, clip part are reversed using the copper-lead of innovative design
36, by operation readiness, it can simply eliminate similar nut member to the pressure of screw shaft shoulder end face, at this moment nut and screw part
In unloading vacant state, dismantling becomes simple and convenient as Screw assembly, for solving Screw assembly under load effect
Continuous automatically lock, technical problem not easy to disassemble, in large-sized boiler axes of blower component screw-threaded coupling field, such function
It can be particularly important.
When air-introduced machine A impeller needs to dismantle but is very difficult, copper-lead is reversed in composite pad 32 using oxy arc
Between copper packing carry out oxy arc heat treatment, since the conductivity of heat of copper is fabulous, and the fusing point of metal is lower, metal after heating
It is completely eliminated by the compression tensile force of thermal melting, draught fan impeller and shaft shoulder step, draught fan impeller is made to be in complete vacant state,
It is especially susceptible to dismantle.
When 35 component of shaft coupling of similar nut needs to dismantle but is very difficult, bolt 45 is removed with spanner, because
Two semicircular ring clip bodies be fast to opening structure and clip body section is wedge shape, can be with the flat tool in one end from two clips
Ear 42 connects the place of closing up and easily pries open, and clip easy removal is got off, clip pad 43 returns to relaxed state, makes 35 component of shaft coupling
The tensile force after locking with shaft shoulder end face completely eliminates, and 35 component of shaft coupling of similar nut is made to be in complete hanging shape
State is especially susceptible to dismantle.
Above-mentioned only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form.It is any to be familiar with sheet
The technical staff in field, without deviating from the scope of the technical scheme of the present invention, all using the technology contents of the disclosure above
Many possible changes and modifications or equivalent example modified to equivalent change are made to technical solution of the present invention.Therefore, all
It is the content without departing from technical solution of the present invention, technical spirit is made to the above embodiment according to the present invention any simply repairs
Change, equivalent variations and modification, all shall fall within the protection scope of the technical scheme of the invention.
Claims (2)
1. a kind of two-stage heat reclamation type cyclone dust removal coal-burning boiler, including boiler body, it is characterised in that: the high temperature of boiler body
Offgas duct connects air-introduced machine with cyclone dust collectors through air preheat plate heat exchanger, water preheating tubular heat exchanger tube side；Air is pre-
Hot plate type heat exchanger air inlet connects air blower, and air outlet connects boiler body；The water in high-order soft water pond is changed through water preheating tubulation
By high pressure pump system to boiler water supply after hot device shell side preheating；The air-introduced machine includes draught fan impeller, bearing, fan shaft and connection
Axis device, shaft coupling are all made of Screw assembly with fan shaft and draught fan impeller and fan shaft, and thread rotary orientation is with work and to carry certainly
The direction of dynamic locking；Draught fan impeller is similar to nut by being threadedly coupled and reversing impeller plain washer, copper-lead compound with fan shaft
Pad compresses, and draught fan impeller and fan shaft one end form screw thread rigid connection；Clip part is inserted in the fan shaft other end, then by shaft coupling
Device plain washer is inserted in fan shaft, is then threaded into the shaft coupling of similar nut, then rationally all locking, makes clip part and similar spiral shell
The shaft coupling and the fan shaft other end of cap also constitute rigid connection；Copper-lead torsion composite pad be punch process at copper packing,
It is with fin outside it, then in the compound fusible lead alloy washer in copper packing two sides；The clip part is by clip, clip ear, clip pad
It is constituted with bolt, clip section is wedge shape, is made of two semicircular ring clip bodies to opening structure, clip pad opens elliptical aperture to enhance
Axial elasticity, it is planar structure that clip, which pads both ends, and convenient for cooperating with shaft shoulder plane, clip is passed through on clip ear using bolt
Hole is assemblied on clip pad and is integrally formed.
2. two-stage heat reclamation type cyclone dust removal coal-burning boiler according to claim 1, it is characterised in that: the air-introduced machine
Air outlet connects chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095363.7A CN105757709B (en) | 2016-02-22 | 2016-02-22 | Two-stage heat reclamation type cyclone dust removal coal-burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610095363.7A CN105757709B (en) | 2016-02-22 | 2016-02-22 | Two-stage heat reclamation type cyclone dust removal coal-burning boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105757709A CN105757709A (en) | 2016-07-13 |
| CN105757709B true CN105757709B (en) | 2019-01-08 |
Family
ID=56330937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610095363.7A Expired - Fee Related CN105757709B (en) | 2016-02-22 | 2016-02-22 | Two-stage heat reclamation type cyclone dust removal coal-burning boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN105757709B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2425216Y (en) * | 2000-05-31 | 2001-03-28 | 范基兴 | Sand pump |
| CN100529259C (en) * | 2005-06-23 | 2009-08-19 | 沙同庆 | Anti-theft rail clip on railroad |
| TWM434597U (en) * | 2012-03-13 | 2012-08-01 | Protector Sprinkler Ind Co Ltd | Water spraying head structure for fire-fighting |
| CN203784067U (en) * | 2014-03-20 | 2014-08-20 | 邵传江 | Reusable anti-theft bolt |
| CN204458475U (en) * | 2014-12-22 | 2015-07-08 | 芜湖美智空调设备有限公司 | Linkage structure and air conditioner |
| CN105066157B (en) * | 2015-08-14 | 2017-11-28 | 盐城衍易科技有限公司 | A kind of tail recuperation of heat cleaning type coal-burning boiler |
| CN105135101B (en) * | 2015-09-17 | 2018-03-02 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of locking device for pipe joint |
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2016
- 2016-02-22 CN CN201610095363.7A patent/CN105757709B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN105757709A (en) | 2016-07-13 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181023 Address after: 510640 2401, unit 371-1, Zhong Gong education building, five mountain road, Tianhe District, Guangzhou, Guangdong. Applicant after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 416000 No. 120 Renmin South Road, Jishou City, Xiangxi Tujia and Miao Autonomous Prefecture, Hunan Applicant before: Jishou University Effective date of registration: 20181023 Address after: 211800 88 Jiangpu Road, Pukou District, Nanjing, Jiangsu. Applicant after: Nanjing Pukou Kechuang investor group Co.,Ltd. Address before: 510640 2401, unit 371-1, Zhong Gong education building, five mountain road, Tianhe District, Guangzhou, Guangdong. Applicant before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |