CN206817488U - A kind of fume extractor for steam boiler - Google Patents

A kind of fume extractor for steam boiler Download PDF

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Publication number
CN206817488U
CN206817488U CN201720589679.1U CN201720589679U CN206817488U CN 206817488 U CN206817488 U CN 206817488U CN 201720589679 U CN201720589679 U CN 201720589679U CN 206817488 U CN206817488 U CN 206817488U
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China
Prior art keywords
smoke
welded
heat
connect
pipe
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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
Application number
CN201720589679.1U
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Chinese (zh)
Inventor
祝剑峰
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Dongyang Exsaf Boiler Co Ltd
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Dongyang Exsaf Boiler Co Ltd
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Priority to CN201720589679.1U priority Critical patent/CN206817488U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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  • Separating Particles In Gases By Inertia (AREA)

Abstract

It the utility model is related to boiler exhaust gas field, more particularly to a kind of fume extractor for steam boiler, including smoke-fire-tube, preceding soot processing device, smoke evacuation heat-exchanger rig, rear soot processing device, left bank smoke pipe, right smoke exhaust pipe, auxiliary smoke exhaust pipe, soot processing device before the smoke-fire-tube upper end connection, preceding soot processing device upper end connection smoke evacuation heat-exchanger rig, soot processing device after the connection of smoke evacuation heat-exchanger rig upper end, soot processing device top left hand is welded to connect left bank smoke pipe afterwards, and right smoke exhaust pipe is welded to connect on rear side of rear soot processing device top;The preceding soot processing device right-hand member connection auxiliary smoke exhaust pipe.The utility model can effectively filter the solid impurity in boiler smoke, solve to pollute caused by the flue dust in boiler smoke in the prior art, and can solve the problems, such as the thermal pollution to caused by atmospheric environment of the waste heat in boiler smoke by exchanging heat to cold water.

Description

A kind of fume extractor for steam boiler
Technical field
Boiler exhaust gas field is the utility model is related to, more particularly to a kind of fume extractor for steam boiler.
Background technology
Smoke exhaust pipe is one of part essential in steam boiler equipment, and existing boiler exhaust gas device is mostly a list One straight tube structure, and contain substantial amounts of waste heat and flue dust in boiler smoke, if be directly emitted into by smoke exhaust pipe in air, Flue dust in boiler smoke can be serious pollution environment, and the waste heat in boiler smoke can then cause serious thermal pollution, and The waste of heat energy can be also caused to be unfavorable for the protection of environment, social development.
Such as number of patent application is a kind of CN201410710130.4 smoke exhaust pipe, including tube body of discharging fume, its feature exist In the smoke exhaust pipe body interior is set with drive lead screw, and the installation for coordinating transmission with drive lead screw is set with drive lead screw Cover, be set with installation set and hang brush block, smoke exhaust pipe inner body wall is provided with some guide rails, and extension brush block neighboring offers and guide rail The groove being engaged, drive lead screw are provided with the limited block for being provided with inductor, and drive lead screw lower outside is provided with synchronizing wheel, arrange Smoke pipe outer body is provided with motor, is set with motor output shaft with synchronizing wheel by being driven the initiative driver of band connection, row Smoke pipe outer body is provided with controller, controller signals output end and motor connection, and controller signals input connects with inductor Connect, the present invention provides a kind of discharge fume just can be to the smoke exhaust pipe that be cleared up of inside pipe wall of discharging fume.There is make for the utility model The shortcomings that boiler smoke being directly discharged in air during, serious pollution environment, and wasting substantial amounts of heat energy.
Utility model content
The purpose of this utility model is to provide a kind of fume extractor for steam boiler, can effectively filter boiler smoke In solid impurity, solve to pollute caused by the flue dust in the prior art in boiler smoke, and can be by changing cold water Heat solves the thermal pollution to caused by atmospheric environment of the waste heat in boiler smoke, while effectively utilizes the heat energy in flue gas, energy-conservation Environmental protection;The present apparatus is also provided with aiding in smoke exhaust pipe, can effectively prevent line clogging, the situation that flue gas can not circulate.
The purpose of this utility model is achieved through the following technical solutions:
A kind of fume extractor for steam boiler, including smoke-fire-tube, preceding soot processing device, smoke evacuation heat-exchanger rig, after Soot processing device, left bank smoke pipe, right smoke exhaust pipe, auxiliary smoke exhaust pipe, soot processing device before the smoke-fire-tube upper end connection are preceding Soot processing device upper end connects smoke evacuation heat-exchanger rig, soot processing device after heat-exchanger rig upper end connection of discharging fume, at rear flue dust Reason device top left hand is welded to connect left bank smoke pipe, and right smoke exhaust pipe is welded to connect on rear side of rear soot processing device top;Before described Soot processing device right-hand member connection auxiliary smoke exhaust pipe.
The smoke-fire-tube bosom is welded to connect one piece of stainless steel resistance dirt fire-proof plate, and stainless steel resistance dirt fire-proof plate sets more Individual circular ventilation mouth.
The preceding soot processing device is made up of the back taper form drag dirt flow-disturbing cylinder without cone, collection smoke box, warming plate, the nothing The back taper form drag dirt flow-disturbing cylinder of cone is welded on middle-end inside collection smoke box;Pyrotechnics is connected through a screw thread among the collection smoke box bottom Pipe, smoke-fire-tube are connected inside the back taper form drag dirt flow-disturbing cylinder without cone;On the back taper form drag dirt flow-disturbing cylinder cylinder face of the no cone Multiple circular ventholes are set;The smoke box that integrates collects and one piece of warming plate is respectively bonded on six case faces of smoke box as rectangular box;Institute It is flame retardant type molded polystyrene foams plate to state warming plate.
It is described smoke evacuation heat-exchanger rig by left heat exchanger tube, right heat exchanger tube, left heat-exchanging water tank, right heat-exchanging water tank, with water control valve Heat-exchanging water water inlet pipe, the heat-exchanging water outlet pipe with water control valve, the water-supply-pipe of door are formed;The left heat exchange tube face outer end weldering Left heat-exchanging water tank is connect in succession;The right heat exchange tube face outer end is welded to connect right heat-exchanging water tank;Under on the right side of the right heat-exchanging water tank End is welded to connect the heat-exchanging water water inlet pipe with water control valve, and lower end is welded to connect water-supply-pipe, water-supply-pipe on the left of right heat-exchanging water tank Left end is welded to connect left heat-exchanging water tank, and upper end is welded to connect the heat-exchanging water outlet pipe with water control valve on the left of left heat-exchanging water tank.
Soot processing device hinders dirt cup, left resistance soundboard, right resistance soundboard, stainless steel gold by the taper noise reduction without cone after described Belong to screen pack to form;Left heat exchanger tube, left heat exchanger tube upper end, taper noise reduction are welded to connect on the left of the taper noise reduction resistance dirt cup bottom Resistance dirt cup inside left lower end is welded to connect left resistance soundboard;Right heat exchange is welded to connect on the right side of the taper noise reduction resistance dirt cup bottom Pipe, right heat exchanger tube upper end, taper noise reduction resistance dirt cup inner right side lower end are welded to connect right resistance soundboard;The taper noise reduction hinders dirt cup Inner upper end is welded to connect stainless steel metal screen pack;The taper noise reduction resistance dirt cup top left hand is welded to connect left bank smoke pipe, Taper noise reduction resistance dirt cup is welded to connect right smoke exhaust pipe on the right side of top.
The left bank smoke pipe, right smoke exhaust pipe are all the smoke evacuation arc body that Open Side Down.
The auxiliary smoke exhaust pipe is welded to connect the middle-end on the right side of collection smoke box, and the auxiliary smoke exhaust pipe sets stainless steel by inside The smoke evacuation lid that the cylindrical tube of metal dusting net, cylindrical tube outer end are connected through a screw thread is formed.
Dust flue is connected through a screw thread among the taper noise reduction resistance dirt cup bottom, dust flue bottom is connected through a screw thread row Dirt lid.
The left resistance soundboard, right resistance soundboard are all with the stainless steel plate body for dissipating sound hole, the left resistance soundboard, right resistance soundboard Symmetrically it is obliquely installed to inner side.
The beneficial effects of the utility model:A kind of fume extractor for steam boiler of the present utility model, can be effective The solid impurity in boiler smoke is filtered, solves to pollute caused by the flue dust in boiler smoke in the prior art, and can pass through Cold water is exchanged heat to solve the thermal pollution to caused by atmospheric environment of the waste heat in boiler smoke, while effectively utilized in flue gas Heat energy, energy-conserving and environment-protective;The present apparatus is also provided with aiding in smoke exhaust pipe, can effectively prevent line clogging, what flue gas can not circulate Situation.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present utility model;
Fig. 2 is the structural representation of smoke-fire-tube inside the utility model;
Fig. 3 is the structural representation of soot processing device before the utility model inside;
Fig. 4 is the structural representation of smoke evacuation heat-exchanger rig inside the utility model;
Fig. 5 is the structural representation of soot processing device behind the utility model inside;
Fig. 6 is the structural representation of the utility model interior tapered noise reduction resistance dirt cup;
The structural representation of auxiliary smoke exhaust pipe inside Fig. 7 the utility model;
Fig. 8 is the structural representation of back taper form drag dirt flow-disturbing cylinder inside the utility model.
In figure:Smoke-fire-tube 1;Stainless steel resistance dirt fire-proof plate 1-1;
Preceding soot processing device 2;Back taper form drag dirt flow-disturbing cylinder 2-1;Collect smoke box 2-2;Warming plate 2-3;
Smoke evacuation heat-exchanger rig 3;Left heat exchanger tube 3-1;Right heat exchanger tube 3-2;Left heat-exchanging water tank 3-3;Right heat-exchanging water tank 3-4;Change Hot water inlet pipe 3-5;Heat-exchanging water outlet pipe 3-6;Water-supply-pipe 3-7;
Soot processing device 4 afterwards;Taper noise reduction resistance dirt cup 4-1;Dust flue 4-1-1;Dust discharge lid 4-1-2;Left resistance soundboard 4- 2;Right resistance soundboard 4-3;Stainless steel metal screen pack 4-4;
Left bank smoke pipe 5;
Right smoke exhaust pipe 6;
Aid in smoke exhaust pipe 7;Stainless steel metal basket strainer 7-1;Cylindrical tube 7-2;Smoke evacuation lid 7-3.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment one:
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, a kind of fume extractor for steam boiler, including It is smoke-fire-tube 1, preceding soot processing device 2, smoke evacuation heat-exchanger rig 3, rear soot processing device 4, left bank smoke pipe 5, right smoke exhaust pipe 6, auxiliary Help smoke exhaust pipe 7, soot processing device 2 before the upper end of smoke-fire-tube 1 connection, the preceding upper end of soot processing device 2 connection smoke evacuation heat exchange Device 3, soot processing device 4 after the connection of smoke evacuation heat-exchanger rig 3 upper end, the rear top left hand of soot processing device 4 are welded to connect a left side Smoke exhaust pipe 5, the rear top of soot processing device 4 rear side are welded to connect right smoke exhaust pipe 6;The right-hand member of preceding soot processing device 2 connection Aid in smoke exhaust pipe 7.
The bosom of smoke-fire-tube 1 is welded to connect one piece of stainless steel resistance dirt fire-proof plate 1-1, stainless steel resistance dirt fire-proof plate 1- 1 sets multiple circular ventilation mouths.
The preceding soot processing device 2 is by the back taper form drag dirt flow-disturbing cylinder 2-1 without cone, collection smoke box 2-2, warming plate 2-3 Form, the back taper form drag dirt flow-disturbing cylinder 2-1 of the no cone is welded on middle-end inside collection smoke box 2-2;The collection smoke box 2-2 bottoms Centre is connected through a screw thread smoke-fire-tube 1, and smoke-fire-tube 1 is connected inside the back taper form drag dirt flow-disturbing cylinder 2-1 of no cone;The no cone Back taper form drag dirt flow-disturbing cylinder 2-1 cylinders face on multiple circular ventholes are set;The smoke box 2-2 that integrates collects smoke box as rectangular box One piece of warming plate 2-3 is respectively bonded on 2-2 six case faces;The warming plate 2-3 is flame retardant type molded polystyrene foams plate.
The smoke evacuation heat-exchanger rig 3 is by left heat exchanger tube 3-1, right heat exchanger tube 3-2, left heat-exchanging water tank 3-3, right heat-exchanging water tank 3- 4th, the heat-exchanging water water inlet pipe 3-5 with water control valve, heat-exchanging water outlet pipe 3-6, water-supply-pipe 3-7 with water control valve are formed; The left heat exchanger tube 3-1 pipes face outer end is welded to connect left heat-exchanging water tank 3-3;The right heat exchanger tube 3-2 pipes face outer end is welded to connect Right heat-exchanging water tank 3-4;Lower end is welded to connect the heat-exchanging water water inlet pipe 3-5 with water control valve on the right side of the right heat-exchanging water tank 3-4, Lower end is welded to connect water-supply-pipe 3-7 on the left of right heat-exchanging water tank 3-4, and water-supply-pipe 3-7 left ends are welded to connect left heat-exchanging water tank 3-3, left Upper end is welded to connect the heat-exchanging water outlet pipe 3-6 with water control valve on the left of heat-exchanging water tank 3-3.
Soot processing device 4 hinders dirt cup 4-1, left resistance soundboard 4-2, right resistance soundboard 4- by the taper noise reduction without cone after described 3rd, stainless steel metal screen pack 4-4 is formed;Left heat exchanger tube 3-1 is welded to connect on the left of the taper noise reduction resistance dirt cup 4-1 bottoms, it is left Heat exchanger tube 3-1 upper ends, taper noise reduction resistance dirt cup 4-1 inside lefts lower end are welded to connect left resistance soundboard 4-2;The taper noise reduction resistance Right heat exchanger tube 3-2, right heat exchanger tube 3-2 upper ends, taper noise reduction resistance dirt cup 4-1 inner right sides are welded to connect on the right side of dirt cup 4-1 bottoms Lower end is welded to connect right resistance soundboard 4-3;The taper noise reduction resistance dirt cup 4-1 inner upper ends are welded to connect stainless steel metal screen pack 4-4;The taper noise reduction resistance dirt cup 4-1 top left hands are welded to connect left bank smoke pipe 5, taper noise reduction resistance dirt cup 4-1 tops right side It is welded to connect right smoke exhaust pipe 6.
The left bank smoke pipe 5, right smoke exhaust pipe 6 are all the smoke evacuation arc body that Open Side Down.
The auxiliary smoke exhaust pipe 7 is welded to connect the middle-end on the right side of collection smoke box 2-2, and the auxiliary smoke exhaust pipe 7 is set by inside The smoke evacuation lid 7-3 that stainless steel metal basket strainer 7-1 cylindrical tube 7-2, cylindrical tube 7-2 outer ends are connected through a screw thread is formed.
Dust flue 4-1-1, dust flue 4-1-1 bottoms are connected through a screw thread among the taper noise reduction resistance dirt cup 4-1 bottoms It is connected through a screw thread dust discharge lid 4-1-2.
The left resistance soundboard 4-2, right resistance soundboard 4-3 are all with the stainless steel plate body for dissipating sound hole, the left resistance soundboard 4- 2nd, right resistance soundboard 4-3 is symmetrically obliquely installed to inner side.
Operation principle of the present utility model is:A kind of fume extractor for steam boiler of the present utility model, by pyrotechnics Pipe 1, preceding soot processing device 2, smoke evacuation heat-exchanger rig 3, rear soot processing device 4, left bank smoke pipe 5, right smoke exhaust pipe 6, auxiliary row Smoke pipe 7 is formed, and when in use, the lower end of smoke-fire-tube 1 is connected into boiler exhaust mouth, and boiler smoke is initially entered to smoke-fire-tube 1, Preliminary resistance dirt is carried out through the stainless steel resistance dirt fire-proof plate 1-1 inside smoke-fire-tube 1, while stops the Mars in flue gas, is prevented Fire;Before flue gas enters to by smoke-fire-tube 1 inside soot processing device 2, the preceding soot processing device 2 is by falling without cone Taper resistance dirt flow-disturbing cylinder 2-1, collection smoke box 2-2, warming plate 2-3 are formed, falling without cone of the flue gas through middle-end inside collection smoke box 2-2 Taper resistance dirt flow-disturbing cylinder 2-1 carries out hindering the shunting of dirt flow-disturbing, can play resistance dirt, the effect of noise reduction;Then flue gas enters to collection cigarette Inside case 2-2, then flue gas is entered to inside smoke evacuation heat-exchanger rig 3, and the smoke evacuation heat-exchanger rig 3 is changed by left heat exchanger tube 3-1, the right side Heat pipe 3-2, left heat-exchanging water tank 3-3, right heat-exchanging water tank 3-4, the heat-exchanging water water inlet pipe 3-5 with water control valve, with water control valve Heat-exchanging water outlet pipe 3-6, the water-supply-pipe 3-7 of door are formed;Flue gas is entered to inside left heat exchanger tube 3-1, right heat exchanger tube 3-2, and is The cold water inside left heat-exchanging water tank 3-3, right heat-exchanging water tank 3-4 that left heat exchanger tube 3-1, right heat exchanger tube 3-2 outer ends are set is changed Heat, the temperature of boiler smoke is reduced, solve the problems, such as that waste heat produces thermal pollution in flue gas;Then flue gas enters to rear dust treatment Inside device 4, the noise reduction of the resistance dirt cup 4-1 resistance dirt of the taper noise reduction without cone, left resistance soundboard 4- after inside soot processing device 4 2 carry out resistance sound with right resistance soundboard 4-3, stainless steel metal screen pack carries out dust removal by filtration, finally, pass through left bank smoke pipe 5, right smoke evacuation Pipe 6 is discharged, and the left bank smoke pipe 5, right smoke exhaust pipe 6 are all the smoke evacuation arc body that Open Side Down, can effectively prevent from using During, rainwater is fallen into inside smoke exhaust pipe.
Certainly, described above is not limitation of the utility model, and the utility model is also not limited to the example above, this skill The variations, modifications, additions or substitutions that the those of ordinary skill in art field is made in essential scope of the present utility model, also belong to In the scope of protection of the utility model.

Claims (9)

1. a kind of fume extractor for steam boiler, including smoke-fire-tube (1), preceding soot processing device (2), smoke evacuation heat-exchanger rig (3), rear soot processing device (4), left bank smoke pipe (5), right smoke exhaust pipe (6), auxiliary smoke exhaust pipe (7), it is characterised in that:The cigarette Soot processing device (2) before the connection of fire tube (1) upper end, preceding soot processing device (2) upper end connection smoke evacuation heat-exchanger rig (3), row Soot processing device (4) after the connection of cigarette heat-exchanger rig (3) upper end, rear soot processing device (4) top left hand are welded to connect left bank Smoke pipe (5), rear soot processing device (4) top rear side are welded to connect right smoke exhaust pipe (6);The preceding soot processing device (2) is right End connection auxiliary smoke exhaust pipe (7).
A kind of 2. fume extractor for steam boiler according to claim 1, it is characterised in that:The smoke-fire-tube (1) Bosom is welded to connect one piece of stainless steel resistance dirt fire-proof plate (1-1), and stainless steel resistance dirt fire-proof plate (1-1) sets multiple circular saturating Gas port.
A kind of 3. fume extractor for steam boiler according to claim 1, it is characterised in that:The preceding dust treatment Device (2) is made up of the back taper form drag dirt flow-disturbing cylinder (2-1) without cone, collection smoke box (2-2), warming plate (2-3), the no cone Back taper form drag dirt flow-disturbing cylinder (2-1) be welded on the internal middle-end of collection smoke box (2-2);Pass through among described collection smoke box (2-2) bottom Smoke-fire-tube (1) is threadedly coupled, back taper form drag dirt flow-disturbing cylinder (2-1) of smoke-fire-tube (1) connection without cone is internal;The no cone Back taper form drag dirt flow-disturbing cylinder (2-1) cylinder sets multiple circular ventholes on face;The smoke box (2-2) that integrates collects cigarette as rectangular box One piece of warming plate (2-3) is respectively bonded on six case faces of case (2-2);The warming plate (2-3) is flame retardant type molded polystyrene Cystosepiment.
A kind of 4. fume extractor for steam boiler according to claim 1, it is characterised in that:The smoke evacuation heat exchange dress Put (3) by left heat exchanger tube (3-1), right heat exchanger tube (3-2), left heat-exchanging water tank (3-3), right heat-exchanging water tank (3-4), with water control valve Heat-exchanging water water inlet pipe (3-5), the heat-exchanging water outlet pipe (3-6) with water control valve, the water-supply-pipe (3-7) of door are formed;The left side Heat exchanger tube (3-1) pipe face outer end is welded to connect left heat-exchanging water tank (3-3);Right heat exchanger tube (3-2) pipe face outer end is welded to connect Right heat-exchanging water tank (3-4);Lower end is welded to connect the heat-exchanging water water inlet pipe with water control valve on the right side of the right heat-exchanging water tank (3-4) (3-5), right heat-exchanging water tank (3-4) left side lower end are welded to connect water-supply-pipe (3-7), and water-supply-pipe (3-7) left end is welded to connect a left side and changed Boiler (3-3), left heat-exchanging water tank (3-3) left side upper end are welded to connect the heat-exchanging water outlet pipe (3-6) with water control valve.
A kind of 5. fume extractor for steam boiler according to claim 1, it is characterised in that:Dust treatment after described Device (4) hinders dirt cup (4-1), left resistance soundboard (4-2), right resistance soundboard (4-3), stainless steel metal mistake by the taper noise reduction without cone Filter screen (4-4) is formed;Left heat exchanger tube (3-1), left heat exchanger tube are welded to connect on the left of described taper noise reduction resistance dirt cup (4-1) bottom (3-1) upper end, taper noise reduction resistance dirt cup (4-1) inside left lower end are welded to connect left resistance soundboard (4-2);The taper noise reduction resistance Right heat exchanger tube (3-2), right heat exchanger tube (3-2) upper end, taper noise reduction resistance dirt cup (4-1) are welded to connect on the right side of dirt cup (4-1) bottom Inner right side lower end is welded to connect right resistance soundboard (4-3);Described taper noise reduction resistance dirt cup (4-1) inner upper end is welded to connect stainless Steel metal screen pack (4-4);Described taper noise reduction resistance dirt cup (4-1) top left hand is welded to connect left bank smoke pipe (5), taper noise reduction Resistance is welded to connect right smoke exhaust pipe (6) on the right side of dirt cup (4-1) top.
A kind of 6. fume extractor for steam boiler according to claim 1, it is characterised in that:The left bank smoke pipe (5), right smoke exhaust pipe (6) is all the smoke evacuation arc body that Open Side Down.
A kind of 7. fume extractor for steam boiler according to claim 1, it is characterised in that:The auxiliary smoke exhaust pipe (7) middle-end on the right side of collection smoke box (2-2) is welded to connect, the auxiliary smoke exhaust pipe (7) sets stainless steel metal basket strainer by inside The smoke evacuation lid (7-3) that the cylindrical tube (7-2) of (7-1), cylindrical tube (7-2) outer end are connected through a screw thread is formed.
A kind of 8. fume extractor for steam boiler according to claim 5, it is characterised in that:The taper noise reduction resistance Dust flue (4-1-1) is connected through a screw thread among dirt cup (4-1) bottom, dust flue (4-1-1) bottom is connected through a screw thread dust discharge Cover (4-1-2).
A kind of 9. fume extractor for steam boiler according to claim 5, it is characterised in that:The left resistance soundboard (4-2), right resistance soundboard (4-3) are all with the stainless steel plate body for dissipating sound hole, the left resistance soundboard (4-2), right resistance soundboard (4-3) Symmetrically it is obliquely installed to inner side.
CN201720589679.1U 2017-05-25 2017-05-25 A kind of fume extractor for steam boiler Expired - Fee Related CN206817488U (en)

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Application Number Priority Date Filing Date Title
CN201720589679.1U CN206817488U (en) 2017-05-25 2017-05-25 A kind of fume extractor for steam boiler

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108375079A (en) * 2018-02-28 2018-08-07 芜湖鸣人热能设备有限公司 A kind of hot-water boiler fume extractor
CN109489056A (en) * 2018-11-27 2019-03-19 杜都 A kind of chimney filtering and purifying with function of recovering waste heat

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108375079A (en) * 2018-02-28 2018-08-07 芜湖鸣人热能设备有限公司 A kind of hot-water boiler fume extractor
CN109489056A (en) * 2018-11-27 2019-03-19 杜都 A kind of chimney filtering and purifying with function of recovering waste heat

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Granted publication date: 20171229

Termination date: 20190525