CN106090990A - Gas fired-boiler furnace wall structure - Google Patents

Gas fired-boiler furnace wall structure Download PDF

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Publication number
CN106090990A
CN106090990A CN201610492412.0A CN201610492412A CN106090990A CN 106090990 A CN106090990 A CN 106090990A CN 201610492412 A CN201610492412 A CN 201610492412A CN 106090990 A CN106090990 A CN 106090990A
Authority
CN
China
Prior art keywords
furnace wall
insulation layer
thickness
heat
flame retardant
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
CN201610492412.0A
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Chinese (zh)
Inventor
杨春勇
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.)
WUXI XINENG BOILER CO Ltd
Original Assignee
WUXI XINENG BOILER 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 WUXI XINENG BOILER CO Ltd filed Critical WUXI XINENG BOILER CO Ltd
Priority to CN201610492412.0A priority Critical patent/CN106090990A/en
Publication of CN106090990A publication Critical patent/CN106090990A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00Casings; Linings; Walls

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention discloses a kind of gas fired-boiler furnace wall structure, including: the flame retardant coating piled up by refractory fireclay block, the thickness of flame retardant coating is 100mm 120mm;The heat insulation layer of thickness 60mm 65mm, the heat-insulation layer of thickness 20mm 25mm and the sealant of thickness 3mm 5mm it is disposed with from the inside to the outside on flame retardant coating;Heat insulation layer is less than 1000kg/m by density3, heat conductivity is less than the material composition of 0.29W/ (m DEG C) when 20 DEG C, and heat-insulation layer is asbestos board, and sealant is steel plate.This boiler furnace wall structure fire resistance is good, and during boiler operatiopn, the temperature outside furnace wall is not above 60 DEG C, is sealed by sheet metal outside furnace wall, has good air-tightness, also greatly strengthen the service life of furnace wall simultaneously.

Description

Gas fired-boiler furnace wall structure
Technical field
The present invention relates to boiler technology field, especially, relate to a kind of gas fired-boiler furnace wall structure.
Background technology
The various heating surfaces of boiler must be surrounded the flow channel of the flue gases such as formed burner hearth and flue by furnace wall, for Different parts or the furnace wall of different operating condition, in performance so that the requirement in structure should also be as being different.Generally for cigarette The furnace wall at the positions such as temperature burner hearth more than 900 DEG C and high temperature convection pass requires higher.Furnace wall is long-term and high-temperature flue gas Contact, therefore it is required that have resistant to elevated temperatures ability and the characteristic of opposing ash attack, and to have good heat-insulating property, Yi Mianxiang The outer amount of heat that scatters and disappears: in order to flue gas leakage, must holding furnace to outside stove in preventing outside air from leaking into burner hearth or during pressure combustion The air-tightness of wall.Traditional gas fired-boiler furnace wall typically uses refractory brick to form with heat-barrier material, this relatively simple for structure, no The most fire-resistant bad with air-tightness, and service life is short, need to often safeguard.
Summary of the invention
Present invention aim at providing a kind of gas fired-boiler furnace wall structure, to solve in prior art, furnace wall is fire-resistant and gas Close property is bad, the problem that service life is short.
For achieving the above object, the present invention provides a kind of gas fired-boiler furnace wall structure, including: piled up by refractory fireclay block and The flame retardant coating become, the thickness of described flame retardant coating is 100mm-120mm;Thickness it is disposed with from the inside to the outside on described flame retardant coating The heat insulation layer of 60mm-65mm, the heat-insulation layer of thickness 20mm-25mm and the sealant of thickness 3mm-5mm;Described heat insulation layer is by density Less than 1000kg/m3, heat conductivity is less than the material composition of 0.29W/ (m DEG C) when 20 DEG C, and described heat-insulation layer is asbestos board, Described sealant is steel plate.
Further, the expansion clearance between two blocks of described refractory fireclay blocks adjacent in described flame retardant coating is not more than 3mm, institute State filled stone cotton cord in expansion clearance.
Further, described heat insulation layer is piled up by diatomite brick and is formed, the adjacent expansion between two blocks of described diatomite bricks Two strands or three strands of asbestos cords are filled in gap.
The method have the advantages that
This boiler furnace wall structure fire resistance is good, and during boiler operatiopn, the temperature outside furnace wall is not above 60 DEG C, logical outside furnace wall Cross sheet metal to seal, there is good air-tightness, also greatly strengthen the service life of furnace wall simultaneously.
Accompanying drawing explanation
Below with reference to figure, the present invention is further detailed explanation.The accompanying drawing of the part constituting the application is used for Thering is provided a further understanding of the present invention, the schematic description and description of the present invention is used for explaining the present invention, is not intended that Inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of gas fired-boiler furnace wall structure preferred embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
Referring to Fig. 1, the preferred embodiments of the present invention provide a kind of gas fired-boiler furnace wall structure, including: resistance to by clay The flame retardant coating 1 that firebrick is piled up, the thickness of described flame retardant coating 1 is 100mm-120mm;Depend on from the inside to the outside on described flame retardant coating 1 The sealant 4 of the secondary heat-insulation layer 3 and thickness 3mm-5mm being provided with the heat insulation layer 2 of thickness 60mm-65mm, thickness 20mm-25mm; Described heat insulation layer 2 is less than 1000kg/m by density3, heat conductivity is less than the material composition of 0.29W/ (m DEG C), institute when 20 DEG C Stating heat-insulation layer 3 is asbestos board, and described sealant 4 is steel plate.This boiler furnace wall structure fire resistance is good, furnace wall during boiler operatiopn The temperature in outside is not above 60 DEG C, is sealed by sheet metal outside furnace wall, has good air-tightness, is also greatly enhanced simultaneously Service life of furnace wall.
Preferably, for improving service life and refractory heat-insulating performance, the phase in described flame retardant coating 1 of flame retardant coating 1 and heat insulation layer 2 The adjacent expansion clearance between two blocks of described refractory fireclay blocks is not more than 3mm, filled stone cotton cord in described expansion clearance;Described thermal insulation Layer 2 is piled up by diatomite brick and to be formed, and two strands or three strands of asbestos cords are filled in the expansion clearance between two blocks of adjacent described diatomite bricks.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention;Skill for this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (3)

1. a gas fired-boiler furnace wall structure, it is characterised in that including:
The flame retardant coating piled up by refractory fireclay block, the thickness of described flame retardant coating is 100mm-120mm;On described flame retardant coating by In to heat-insulation layer and thickness 3mm-5mm close being disposed with outward the heat insulation layer of thickness 60mm-65mm, thickness 20mm-25mm Sealing;Described heat insulation layer is less than 1000kg/m by density3, heat conductivity is less than the material group of 0.29W/ (m DEG C) when 20 DEG C Becoming, described heat-insulation layer is asbestos board, and described sealant is steel plate.
Gas fired-boiler furnace wall structure the most according to claim 1, it is characterised in that:
The expansion clearance between two blocks of described refractory fireclay blocks adjacent in described flame retardant coating is not more than 3mm, in described expansion clearance Filled stone cotton cord.
Gas fired-boiler furnace wall structure the most according to claim 1, it is characterised in that:
Described heat insulation layer is piled up by diatomite brick and is formed, expansion clearance between two blocks of adjacent described diatomite bricks fill two strands or Three strands of asbestos cords.
CN201610492412.0A 2016-06-29 2016-06-29 Gas fired-boiler furnace wall structure Pending CN106090990A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610492412.0A CN106090990A (en) 2016-06-29 2016-06-29 Gas fired-boiler furnace wall structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610492412.0A CN106090990A (en) 2016-06-29 2016-06-29 Gas fired-boiler furnace wall structure

Publications (1)

Publication Number Publication Date
CN106090990A true CN106090990A (en) 2016-11-09

Family

ID=57215306

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610492412.0A Pending CN106090990A (en) 2016-06-29 2016-06-29 Gas fired-boiler furnace wall structure

Country Status (1)

Country Link
CN (1) CN106090990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112984779A (en) * 2019-12-15 2021-06-18 湖南省桂阳银星有色冶炼有限公司 Energy-saving industrial natural gas boiler system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2826192Y (en) * 2005-07-22 2006-10-11 山东华鲁恒升化工股份有限公司 Novel high-efficiency blower boiler combustor lining
JP2010236740A (en) * 2009-03-31 2010-10-21 Akechi Ceramics Co Ltd Furnace structure
CN102320859A (en) * 2011-08-17 2012-01-18 张标 Thermal insulating and fireproof magnesium oxychloride material for interior and exterior walls
CN102425948A (en) * 2011-12-13 2012-04-25 辽宁天和科技股份有限公司 Heat-expansion-applicable safety structure for wall body of kiln
CN103017194A (en) * 2012-11-30 2013-04-03 大连锅炉厂有限公司 Boiler furnace wall structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2826192Y (en) * 2005-07-22 2006-10-11 山东华鲁恒升化工股份有限公司 Novel high-efficiency blower boiler combustor lining
JP2010236740A (en) * 2009-03-31 2010-10-21 Akechi Ceramics Co Ltd Furnace structure
CN102320859A (en) * 2011-08-17 2012-01-18 张标 Thermal insulating and fireproof magnesium oxychloride material for interior and exterior walls
CN102425948A (en) * 2011-12-13 2012-04-25 辽宁天和科技股份有限公司 Heat-expansion-applicable safety structure for wall body of kiln
CN103017194A (en) * 2012-11-30 2013-04-03 大连锅炉厂有限公司 Boiler furnace wall structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112984779A (en) * 2019-12-15 2021-06-18 湖南省桂阳银星有色冶炼有限公司 Energy-saving industrial natural gas boiler system

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Application publication date: 20161109