CN107893984A - The backhaul hot air type shell boiler of fuel-firing gas-firing three - Google Patents

The backhaul hot air type shell boiler of fuel-firing gas-firing three Download PDF

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Publication number
CN107893984A
CN107893984A CN201711219601.1A CN201711219601A CN107893984A CN 107893984 A CN107893984 A CN 107893984A CN 201711219601 A CN201711219601 A CN 201711219601A CN 107893984 A CN107893984 A CN 107893984A
Authority
CN
China
Prior art keywords
firing
backhaul
boiler
smoke pipe
hot air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201711219601.1A
Other languages
Chinese (zh)
Inventor
曹希新
周跃兵
刘玉葵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Changhong Nanyan Boiler Repair Installation Co Ltd
Original Assignee
Hunan Changhong Nanyan Boiler Repair Installation Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Changhong Nanyan Boiler Repair Installation Co Ltd filed Critical Hunan Changhong Nanyan Boiler Repair Installation Co Ltd
Priority to CN201711219601.1A priority Critical patent/CN107893984A/en
Publication of CN107893984A publication Critical patent/CN107893984A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/04Heat supply by installation of two or more combustion apparatus, e.g. of separate combustion apparatus for the boiler and the superheater respectively
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00Arrangements of devices for treating smoke or fumes
    • F23J15/06Arrangements of devices for treating smoke or fumes of coolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L15/00Heating of air supplied for combustion
    • F23L15/04Arrangements of recuperators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L2900/00Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/15043Preheating combustion air by heat recovery means located in the chimney, e.g. for home heating devices
    • 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
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses a kind of backhaul hot air type shell boiler of fuel-firing gas-firing three, the tail end of the boiler body is provided with the useless cigarette entrance point of energy-saving appliance, energy-saving appliance is connected between the useless cigarette entrance point and the useless cigarette port of export, the flue of the useless outer row of cigarette port of export connection, the import flue gas cover at the energy-saving appliance both ends, exiting flue gas cover respectively with useless cigarette entrance point, the useless cigarette port of export is affixed by flange plate bolt, the first backhaul smoke pipe is sequentially provided with inside the energy-saving appliance from left to right, second backhaul smoke pipe, air preheater, the first backhaul smoke pipe, the outside of second backhaul smoke pipe sets corresponding water pipe header respectively, the air preheater respectively with hot air outlet cover, inlet of cold air cover is connected, and it is arranged in fan housing shell.Using the technical program, there is safe and reliable, efficiency high, aesthetic in appearance, compact-sized, occupation of land province, simple installation, be used suitable for all trades and professions production, life.

Description

The backhaul hot air type shell boiler of fuel-firing gas-firing three
Technical field
The present invention relates to the technical field of three backhaul shell boilers, more particularly to a kind of backhaul hot air type pot of fuel-firing gas-firing three Shell boiler.
Background technology
Existing shell boiler is mainly coal-fired, fires natural gas or oil burning boiler, or oil-gas two-way type boiler, traditional pot Caused high-temperature flue gas in shell boiler inner combustion chamber, carry out cold water heat exchange through energy-saving appliance, there is provided hot water uses, subsequent high temperature Flue gas is discharged through chimney, and such high-temperature flue gas is low for energy-saving appliance cold water heat exchange utilization rate, and substantial amounts of high-temperature flue gas Discharged from chimney, when boiler works long hours, the pernicious gas in the flue gas being detained for a long time often will be to smoke pipe wall Certain corrosion is caused, and causes boiler efficiency low, therefore, we design a kind of backhaul hot air type shell pot of fuel-firing gas-firing three Stove.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of backhaul hot air type shell boiler of fuel-firing gas-firing three, in boiler Air preheater is added in the energy-saving appliance of body tail section heating surface, then exhaust gas temperature is just lower, and boiler efficiency is just higher.
To achieve the above object, the present invention provides following technical scheme:A kind of backhaul hot air type shell of fuel-firing gas-firing three Boiler, it includes boiler body, and bottom is provided with burner hearth in boiler body, and its top is provided with carbonated drink room;Burner hearth rear end is return combustion chamber; The first backhaul smoke pipe and the second backhaul smoke pipe of more than one are provided with carbonated drink room, first backhaul smoke pipe one end connects with return combustion chamber Logical, its other end is connected with one end of the second backhaul smoke pipe, and the other end of the second backhaul smoke pipe is connected to boiler by flue This is external;Pyrotechnics during work is successively by three burner hearth, the first backhaul smoke pipe and the second backhaul smoke pipe backhaul pathways.
Preferably, energy-saving appliance is installed on the flue.
Preferably, it is also equipped with air preheater on the flue;Air preheater is located at the flow of flue gas side of energy-saving appliance To postorder position.
Preferably, it also includes cold water tube system, and cold water tube system includes carbonated drink room water inlet pipe and intake with energy-saving appliance Pipe, carbonated drink room water inlet pipe are in parallel with energy-saving appliance water inlet pipe.
Preferably, the side of the boiler body is provided with platform staircase, and the inside of boiler body, which is provided with described in combustor, gives up The flue of the outer row of cigarette port of export connection, the import flue gas cover at the energy-saving appliance both ends, exiting flue gas cover respectively with useless cigarette entrance point, The useless cigarette port of export is affixed by flange plate bolt, and the first backhaul smoke pipe, the outside of the second backhaul smoke pipe are set relatively respectively The water pipe header answered, the air preheater is connected with hot air outlet cover, inlet of cold air cover respectively, and is arranged on fan housing In shell.
Preferably, the first backhaul smoke pipe, the inside of the second backhaul smoke pipe are respectively equipped with multigroup wavy and are connected Multigroup first finned tube group, the second finned tube group, the first finned tube group, the second finned tube group inlet and outlet nozzle end with Corresponding water pipe header is connected.
Preferably, the adjacent fins pipe end between the first finned tube group, the second finned tube group is connected by U-shaped elbow Connect.
Preferably, the first backhaul smoke pipe, the second backhaul smoke pipe are arranged in the first case.
Preferably, the water pipe header is arranged in the second case.
Preferably, the import flue gas cover, exiting flue gas cover are capitate closing in shape cover body.
Preferably, the energy-saving appliance bottom surface by support frame support fix, and the bottom of energy-saving appliance be connected set it is U-shaped dredge Water pipe.
Beneficial effect using above technical scheme is:
1st, air preheater is added in the energy-saving appliance of boiler body back-end surfaces, then exhaust gas temperature is just lower, Boiler efficiency is just higher.
2nd, there is safe and reliable, efficiency high, aesthetic in appearance, compact-sized, occupation of land province, simple installation, be applied to All trades and professions production, life are used.
Brief description of the drawings
Fig. 1 is the structural representation of the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention;
Fig. 2 is energy-saving appliance internal structure schematic diagram in the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention;
Fig. 3 is the energy-saving appliance sectional view of the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention;
Fig. 4 is the energy-saving appliance outboard front view of the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention;
Fig. 5 is showing for the backhaul hot air type shell boiler cooling water cold water tube system parallel-connection structure of fuel-firing gas-firing three of the present invention It is intended to.
Fig. 6 is the structural representation of furnace chamber in the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention;
Fig. 7 is the sectional view of furnace chamber in the backhaul hot air type shell boiler of fuel-firing gas-firing three of the present invention.
Wherein, 1- boiler bodies;2- platform staircases;3- cold water tube systems;4- combustors;The useless cigarette entrance points of 5-;6- is saved Can device;The useless cigarette ports of export of 7-;8- flues;9- import flue gas covers;10- exiting flue gas covers;11- the first backhaul smoke pipes;12- second Backhaul smoke pipe;13- air preheaters;14- elbows;The cases of 15- first;16- the first finned tube groups;17- the second finned tube groups; 18- fan housing shells;19- hot air outlet covers;20- inlet of cold air covers;21- water pipe headers;The cases of 22- second;23- carriages Frame;24-U types drain pipe, 25-- furnace chambers, 26-- carbonated drinks room, 27-- return combustion chambers, 28-- carbonated drinks room water inlet pipe, 29-- energy-saving appliances enter Water pipe.
Embodiment
The preferred embodiment that the invention will now be described in detail with reference to the accompanying drawings.
As Figure 1-4, embodiment of the invention:A kind of backhaul hot air type shell boiler of fuel-firing gas-firing three, its Including boiler body 1, bottom is provided with burner hearth 25 in boiler body 1, and its top is provided with carbonated drink room 26;The rear end of burner hearth 25 is return combustion chamber 27;The first backhaul smoke pipe 11 and the second backhaul smoke pipe 12 of more than one, the one end of the first backhaul smoke pipe 11 are provided with carbonated drink room 26 Connected with return combustion chamber 27, its other end is connected with one end of the second backhaul smoke pipe 12, and the other end of the second backhaul smoke pipe 12 leads to Flue 8 is crossed to be connected to outside boiler body 1;Pyrotechnics during work passes through burner hearth 25, the first backhaul smoke pipe 11 and the second backhaul successively 12 3 backhaul pathways of smoke pipe.
Energy-saving appliance 6 is installed on flue 8;Air preheater 13 is also equipped with the flue 8;Air preheater 13 is located at The postorder position in the flow of flue gas direction of energy-saving appliance 4.
Change and cold water tube system 3 is additionally provided with boiler body 1, cold water tube system 3 includes carbonated drink room water inlet pipe 28 and section Energy device water inlet pipe 29, carbonated drink room water inlet pipe 28 is in parallel with energy-saving appliance water inlet pipe 29;I.e. Loop Water supplies water to body simultaneously, also gives Energy-saving appliance supplies water, i.e., independently supplies water, prevent relay pumping, behind water temperature it is high, it is impossible to absorb heat, radiate on the contrary.
The import flue gas cover 9 at the both ends of energy-saving appliance 6, exiting flue gas cover 10 are logical with useless cigarette entrance point 5, the useless cigarette port of export 7 respectively It is affixed to cross flange plate bolt, import flue gas cover 9, exiting flue gas cover 10 are capitate closing in shape cover body, are easy to entering for high-temperature flue gas Enter or discharge, the bottom surface of energy-saving appliance 6 supports fixation by support frame 23, and the bottom of energy-saving appliance 6 is connected and sets U-shaped drain pipe 24, drain pipe 24 is used to discharge the hot water after high-temperature flue gas exchanges heat.
First backhaul smoke pipe 11, the second backhaul smoke pipe 12 are arranged in the first case 15, the first backhaul smoke pipe 11, second The outside of backhaul smoke pipe 12 sets corresponding water pipe header 21 respectively, and water pipe header 21 is arranged in the second case 22, air Preheater 13 is connected with hot air outlet cover 19, inlet of cold air cover 20 respectively, and is arranged in fan housing shell 18.
First backhaul smoke pipe 11, the inside of the second backhaul smoke pipe 12 be respectively equipped with it is multigroup wavy and be connected multigroup One finned tube group 16, the second finned tube group 17, the first finned tube group 16, the second finned tube group 17 inlet and outlet nozzle end with phase The water pipe header 21 answered is connected, and the adjacent fins pipe end between the first finned tube group 16, the second finned tube group 17 is by U-shaped elbow 14 are connected.
The present invention is implemented:The fuel-firing gas-firing of combustor 4 work in boiler body 1, its tail end produces substantial amounts of High-temperature flue gas, high-temperature flue gas are discharged into energy-saving appliance 6 from expense entrance point 5, by the first backhaul smoke pipe 11, the second backhaul smoke pipe 12, the first finned tube group 16, the second finned tube group 17 inside return duct circulate out of water pipe header 21 is passed through cooling water, cold But water absorbs the heat of high-temperature flue gas, is exchanged heat into hot water and enters U-shaped drain pipe 24 and dispenses, it is possible to provide and hot water uses, and The tail end of energy-saving appliance 6 adds economizer bank group 13, and economizer bank group 13 is passed through cold air out of inlet of cold air cover 20, enters height Hot-air after warm flue gas heat exchange is discharged from hot air outlet cover, and it is cold to realize that the 3rd return smoke pipeline to high-temperature flue gas exchange heat But so that the low-temperature flue gas for being finally discharged into the useless cigarette port of export 7 is discharged out of flue 8.Using the technical program, in boiler body tail Air preheater is added in the energy-saving appliance of portion's heating surface, then exhaust gas temperature is just lower, and boiler efficiency is just higher;And with peace The features such as complete reliable, efficiency high, aesthetic in appearance, compact-sized, occupation of land save, simple installation, suitable for all trades and professions production, life It is used.
The above is only the preferred embodiment of the present invention, it is noted that for the person of ordinary skill of the art, Without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the guarantor of the present invention Protect scope.

Claims (10)

1. a kind of backhaul hot air type shell boiler of fuel-firing gas-firing three, it includes boiler body (1), it is characterised in that:Boiler body (1) interior bottom is provided with burner hearth (25), and its top is provided with carbonated drink room (26);Burner hearth (25) rear end is return combustion chamber (27);Carbonated drink room (26) be provided with the first backhaul smoke pipe (11) and the second backhaul smoke pipe (12) of more than one in, first backhaul smoke pipe (11) one end and Return combustion chamber (27) connects, and its other end is connected with one end of the second backhaul smoke pipe (12), the second backhaul smoke pipe (12) it is another End is connected to boiler body (1) outside by flue (8);Pyrotechnics during work is successively by burner hearth (25), the first backhaul smoke pipe And (12) three backhaul pathways of the second backhaul smoke pipe (11).
2. the backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 1, it is characterised in that:The flue (8) On energy-saving appliance (6) is installed.
3. the backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 2, it is characterised in that:The flue (8) On be also equipped with air preheater (13);Air preheater (13) is located at the postorder position in the flow of flue gas direction of energy-saving appliance (4).
4. the backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 1 or 2 or 3, it is characterised in that:It is also wrapped Cold water tube system (3) is included, cold water tube system (3) includes carbonated drink room water inlet pipe (28) and energy-saving appliance water inlet pipe (29), carbonated drink Room water inlet pipe (28) is in parallel with energy-saving appliance water inlet pipe (29).
A kind of 5. backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 3, it is characterised in that the boiler The side of body (1) is provided with platform staircase (2), and the inside of boiler body (1) is provided with combustor (4), the cigarette port of export (7) connection of giving up The flue (8) of outer row, the import flue gas cover (9) at energy-saving appliance (6) both ends, exiting flue gas cover (10) respectively with useless cigarette entrance point (5) the cigarette port of export (7) that, gives up is affixed by flange plate bolt, the first backhaul smoke pipe (11), the second backhaul smoke pipe (12) it is outer Side sets corresponding water pipe header (21) respectively, the air preheater (13) respectively with hot air outlet cover (19), cold sky Gas enters mouth mask (20) and is connected, and is arranged in fan housing shell (18).
6. the backhaul hot air type shell boiler of a kind of fuel-firing gas-firing three according to claim 1, it is characterised in that described first Backhaul smoke pipe (11), the inside of the second backhaul smoke pipe (12) are respectively equipped with multigroup first finned tube that is multigroup wavy and being connected Group (16), the second finned tube group (17), the first finned tube group (16), the second finned tube group (17) inlet and outlet nozzle end with Corresponding water pipe header (21) is connected;Adjacent fins between the first finned tube group (16), the second finned tube group (17) Pipe end is connected by U-shaped elbow (14).
7. the backhaul hot air type shell boiler of a kind of fuel-firing gas-firing three according to claim 1, it is characterised in that described first Backhaul smoke pipe (11), the second backhaul smoke pipe (12) are arranged in the first case (15).
A kind of 8. backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 1, it is characterised in that the water pipe Header (21) is arranged in the second case (22).
A kind of 9. backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 1, it is characterised in that the import Flue gas cover (9), exiting flue gas cover (10) are capitate closing in shape cover body.
A kind of 10. backhaul hot air type shell boiler of fuel-firing gas-firing three according to claim 2, it is characterised in that the section Can device (6) bottom surface supported and fix by support frame (23), and the bottom of energy-saving appliance (6) is connected and sets U-shaped drain pipe (24).
CN201711219601.1A 2017-11-28 2017-11-28 The backhaul hot air type shell boiler of fuel-firing gas-firing three Pending CN107893984A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711219601.1A CN107893984A (en) 2017-11-28 2017-11-28 The backhaul hot air type shell boiler of fuel-firing gas-firing three

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711219601.1A CN107893984A (en) 2017-11-28 2017-11-28 The backhaul hot air type shell boiler of fuel-firing gas-firing three

Publications (1)

Publication Number Publication Date
CN107893984A true CN107893984A (en) 2018-04-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311843A (en) * 1993-05-12 1994-05-17 Weben-Jarco, Inc. Water heating apparatus
CN204534518U (en) * 2015-01-06 2015-08-05 广州迪森热能设备有限公司 Three backhaul combustion gas condensation steam boilers
CN204901718U (en) * 2015-07-20 2015-12-23 浙江上能锅炉有限公司 Many return strokes gas steam boiler
CN205048407U (en) * 2015-09-07 2016-02-24 河北艺能锅炉有限责任公司 Horizontal full -automatic steam boiler
CN207936035U (en) * 2017-11-28 2018-10-02 湖南长宏南雁锅炉修理安装有限公司 Three backhaul hot air type shell boiler of fuel-firing gas-firing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5311843A (en) * 1993-05-12 1994-05-17 Weben-Jarco, Inc. Water heating apparatus
CN204534518U (en) * 2015-01-06 2015-08-05 广州迪森热能设备有限公司 Three backhaul combustion gas condensation steam boilers
CN204901718U (en) * 2015-07-20 2015-12-23 浙江上能锅炉有限公司 Many return strokes gas steam boiler
CN205048407U (en) * 2015-09-07 2016-02-24 河北艺能锅炉有限责任公司 Horizontal full -automatic steam boiler
CN207936035U (en) * 2017-11-28 2018-10-02 湖南长宏南雁锅炉修理安装有限公司 Three backhaul hot air type shell boiler of fuel-firing gas-firing

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Application publication date: 20180410