CN111075547A - Basalt heat insulation sleeve exhaust pipe, manufacturing method and detection method thereof - Google Patents

Basalt heat insulation sleeve exhaust pipe, manufacturing method and detection method thereof Download PDF

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Publication number
CN111075547A
CN111075547A CN201911093641.5A CN201911093641A CN111075547A CN 111075547 A CN111075547 A CN 111075547A CN 201911093641 A CN201911093641 A CN 201911093641A CN 111075547 A CN111075547 A CN 111075547A
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China
Prior art keywords
pipe
steel
exhaust pipe
layer
heat insulation
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Pending
Application number
CN201911093641.5A
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Chinese (zh)
Inventor
陈友金
冯早阳
蒲博伟
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Linhai Aofa Pipe Co ltd
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Linhai Aofa Pipe Co ltd
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Priority to CN201911093641.5A priority Critical patent/CN111075547A/en
Publication of CN111075547A publication Critical patent/CN111075547A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/02—Layer formed of wires, e.g. mesh
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/18—Layered products comprising a layer of metal comprising iron or steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/041—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/14—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having thermal insulation
    • F01N13/148—Multiple layers of insulating material
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/48—Thermography; Techniques using wholly visual means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2807—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes
    • G01M3/2815—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for pipes using pressure measurements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Exhaust Silencers (AREA)

Abstract

The invention discloses a basalt heat insulation sleeve exhaust pipe, which relates to the technical field of exhaust pipes and comprises a corrugated pipe, steel pipes, flange plates, steel wire layers, heat insulation layers and protective layers, wherein the steel wire layers are woven by steel wires, the steel wire layers wrap the outer surfaces of the corrugated pipe and are fixed relative to the corrugated pipe, the first ends of the two steel pipes are fixed at the two ends of the corrugated pipe, the flange plates are fixed at the second ends of the two steel pipes, the heat insulation layers wrap the outer surfaces of the steel pipes and the steel wire layers, the heat insulation layers are basalt knitted sleeves, the protective layers wrap the outer surfaces of the heat insulation layers, the protective layers and the steel pipes are. The invention has the characteristics of good heat preservation performance and capability of effectively reducing noise.

Description

Basalt heat insulation sleeve exhaust pipe, manufacturing method and detection method thereof
Technical Field
The invention relates to the technical field of exhaust pipes, in particular to a basalt heat insulation sleeve exhaust pipe and a manufacturing method and a detection method thereof.
Background
At present, exhaust pipes on automobiles have various structures, and the main types of the exhaust pipes comprise a heat insulation tile type automobile exhaust pipe, a ceramic coating lining type heat insulation exhaust pipe and a cladding heat insulation belt type exhaust pipe. The heat insulation effect is also different, and the cost price is also different greatly. The heat insulation tile type automobile exhaust pipe comprises an outer layer, a middle interlayer and an inner layer, wherein the outer layer is an aluminum plate, the middle interlayer is a heat insulation layer, the inner layer is an aluminum foil layer, the three layers are fixedly connected together through rivets to avoid abnormal sound and resonance, an anchor ear for fixing and isolating the exhaust pipe is arranged in the heat insulation tile, and the anchor ear is fixed on the heat insulation sheet through a screw support; the ceramic coating lining type heat insulation exhaust pipe mainly comprises an exhaust pipe, a ceramic coating, a heat insulation layer, an air gap and a pipe protection layer, wherein the ceramic coating prepared by adopting a self-propagating method has the thermal shock property requirement of chilling and heating, and meets the periodic work of an engine; the coated heat-insulating belt type exhaust pipe is formed by winding aluminum foil fiber belts or aluminum foil ceramic fibers on the exhaust pipe uniformly.
The heat insulation tile type exhaust pipe has the defects of poor environmental protection, complex structure, heavier weight and the like; the ceramic coating lining type heat insulation exhaust pipe has the defects of difficult construction and poor impact resistance effect; the coated heat-insulation belt type exhaust pipe has the defects of poor reliability and low heat-insulation temperature.
Therefore, there is a need in the market for a new exhaust pipe to solve the above technical problems in the prior art.
Disclosure of Invention
The invention aims to provide a basalt heat insulation sleeve exhaust pipe, a manufacturing method thereof and a detection method thereof, which are used for solving the technical problems in the prior art, and can effectively reduce noise and improve heat insulation effect.
In order to achieve the purpose, the invention provides the following scheme:
the invention discloses a basalt heat insulation sleeve exhaust pipe which comprises a corrugated pipe, steel pipes, flange plates, two steel wire layers, a heat insulation layer and a protective layer, wherein the steel wire layers are woven by steel wires, the steel wire layers wrap the outer surfaces of the heat insulation pipes, the steel wire layers are fixed relative to the corrugated pipe, the number of the steel pipes is two, the first ends of the two steel pipes are respectively fixed at two ends of the corrugated pipe, the flange plates are fixed at the second ends of the two steel pipes, the heat insulation layer wraps the outer surfaces of the steel pipes and the steel wire layers, the heat insulation layer is a basalt knitted sleeve, the protective layer wraps the outer surface of the heat insulation layer, the protective layer and the steel pipes are fixed relative to each other, and the heat insulation layer, the protective layer and.
Preferably, the protective layer is a composite aluminum foil protective layer.
Preferably, still include the clamp, a plurality of the clamp is fixed in the surface of protective layer, the clamp is used for pressing from both sides tight protective layer.
Preferably, the bellows is a double-layer bellows.
The invention discloses a manufacturing method of a basalt heat insulation sleeve exhaust pipe, which comprises the following steps:
s1: carrying out feeding inspection, namely inspecting the steel pipe, the corrugated pipe and the flange;
s2: cleaning pipe orifices, and removing burrs of the pipe orifices of the corrugated pipes and the steel pipes;
s3: bending the steel pipe;
s4: cleaning, and removing impurities on the corrugated pipe and the steel pipe;
s5: cutting off the corrugated pipe and the steel pipe in a fixed length mode according to the requirement;
s6: removing burrs of pipe orifices of the corrugated pipe and the steel pipe;
s7: cleaning, and removing impurities on the corrugated pipe and the steel pipe;
s8: laser marking, namely printing required labels on the steel pipe;
s9: assembling a heat insulation layer and a protective layer;
s10: spot welding the flange plate to enable the pipe orifice at the second end of the steel pipe to be flush with the flange plate in assembly, wherein the spatial position of the flange plate conforms to the tool;
s11: MIG welding, namely welding the flange plate and the steel pipe together;
s12: and assembling, namely installing a clamp on the outer side of the protective layer.
The invention discloses a detection method of a basalt heat insulation sleeve exhaust pipe, which comprises a temperature detection method, a noise detection method and an air tightness detection method;
the temperature detection method comprises the following steps:
s1: the air inlet and the air outlet of the exhaust pipe are respectively provided with a detection device;
s2: selecting a detection surface on the exhaust pipe, and arranging a detection device for detecting the temperature value of the detection surface;
s3: the detection device is electrically connected with the computer, and transmits the detected data to the computer for data collection and analysis;
the noise detection method comprises the following steps:
s1: connecting the exhaust pipe with a noise source;
s2: a sound-proof cover is made for the local part of the exhaust pipe;
s3: measuring the noise decibel in the sound-proof shield through a test port;
the air tightness detection method comprises the following steps:
s1: introducing gas into the exhaust pipe;
s2: sealing two ends of the exhaust pipe;
s3: at a predetermined pressure and time, the presence or absence of leakage was observed.
Compared with the prior art, the invention has the following technical effects:
the invention has the advantages of good heat preservation and insulation effect, high and low temperature resistance (minus 40 ℃ to 1000 ℃), good chemical stability, chemical corrosion resistance, moth-proofing, mildew-proofing, water-proofing, aging resistance, weather resistance, fire prevention, flame retardance and the like, is environment-friendly (does not contain asbestos and any other harmful substances, replaces glass fiber, asbestos and the like), reduces noise (the sound absorption coefficient of basalt fiber is 0.9 to 0.99, has excellent wave permeability and certain wave absorption, improves the sound absorption and sound insulation performance of the product, and can effectively reduce the noise pollution of an engine exhaust pipe); and the installation is convenient and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of an exhaust pipe of the basalt heat insulation jacket in the embodiment;
FIG. 2 is a partial sectional view of an exhaust pipe of the basalt thermal insulating jacket according to the embodiment;
in the figure: 1-a corrugated tube; 2-a steel pipe; 3-a steel wire layer; 4-a flange plate; 5-insulating layer; 6-a protective layer; 7-clamping hoop.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a basalt heat insulation sleeve exhaust pipe, a manufacturing method thereof and a detection method thereof, which are used for solving the technical problems in the prior art, and can effectively reduce noise and improve heat insulation effect.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1-2, the present embodiment provides a basalt thermal insulation jacket exhaust pipe, which comprises a corrugated pipe 1, a steel pipe 2, a flange 4, a steel wire layer 3, an insulating layer 5 and a protective layer 6. The steel wire layer 3 is formed by weaving steel wires and wraps the outer surface of the corrugated pipe, and the steel wire layer 3 and the corrugated pipe 1 are fixed relatively. First ends of the two steel pipes 2 are fixed to two ends of the corrugated pipe 1 by welding, and the flange plate 4 is fixed to second ends of the two steel pipes 2 by welding. The heat preservation layer 5 covers the outer surfaces of the steel pipe 2 and the steel wire layer 3, the heat preservation layer 5 is a basalt knitted jacket, and the basalt knitted jacket is high-temperature resistant and good in heat preservation and heat insulation performance. The protective layer 6 covers the outer surface of the heat-insulating layer 5, and the protective layer 6 can effectively prevent the heat-insulating layer 5 from being damaged. The heat preservation layer 5, the protective layer 6 and the steel pipe 2 are relatively fixed, and the heat preservation layer 5, the protective layer 6 and the steel wire layer 3 are relatively fixed, so that the heat preservation layer 5 and the protective layer 6 are prevented from falling off in the using process.
When the exhaust pipe fixing device is used, an installer can select the exhaust pipe with the proper size according to actual needs and fixedly connect the exhaust pipes through the flange plates 4 at the two ends of the exhaust pipe. The multilayer structure can effectively preserve heat and reduce noise.
Specifically, in the present embodiment, the protective layer 6 is a composite aluminum foil protective layer 6. Those skilled in the art can replace the heat insulation layer with the aluminum plate protective layer 6 or the protective layer 6 made of other materials as long as the heat insulation layer 5 can be protected and the heat insulation layer 5 is prevented from being damaged.
In order to prevent the protective layer 6 and the insulating layer 5 from falling off, the present embodiment further includes a clamp 7, the plurality of clamps 7 are fixed on the outer surface of the protective layer 6, and the clamps 7 are used for clamping the protective layer 6. And a clamp 7 is respectively arranged at the inlet end and the outlet end of each section of pipe, so that the protective layer 6 and the heat-insulating layer 5 are prevented from falling off.
Further, the bellows 1 in this embodiment is a double-layer bellows. The double-layer corrugated pipe has the advantages of small resistance, high strength, wear resistance and the like, and can further strengthen the exhaust pipe.
The embodiment also provides a manufacturing method of the basalt heat insulation sleeve exhaust pipe, which comprises the following steps:
s1: and (4) carrying out stock inspection, wherein the inspection is carried out on the pipe body and the flange plate, and the material, specification and mechanical property of the corrugated pipe 1, the steel pipe 2 and the flange plate are mainly inspected.
S2: and (5) cleaning the pipe orifice, and removing burrs through a steel wire polishing machine.
S3: and (3) bending the pipe, namely bending the corrugated pipe 1 and the steel pipe 2 which accord with the drawing on a numerical control pipe bending machine according to the space coordinate of the product.
S4: and cleaning, namely cleaning impurities on the inner surface and the outer surface of the corrugated pipe 1 and the steel pipe 2 by using ultrasonic waves.
S5: cutting off to length, and cutting the semi-finished product into the corrugated pipe 1 and the steel pipe 2 which meet the size of the drawing according to the requirement of the process size.
S6: and (4) deburring, namely deburring after cutting the corrugated pipe 1 and the steel pipe 2.
S7: and cleaning, namely cleaning impurities on the inner surface and the outer surface of the corrugated pipe 1 and the steel pipe 2 by using ultrasonic waves and drying the impurities.
S8: laser marking, printing the required labels on the steel pipe 2, for example: supplier code + drawing number + batch number to ensure product traceability.
S9: an insulating layer 5 and a protective layer 6 are assembled.
S10: and spot welding the flange plate 4 to ensure that the second end pipe orifice of the steel pipe 2 is flush with the flange plate 4 in assembly, the spatial position of the flange plate 4 conforms to the tool, and the diameter of the welding spot is smaller than phi 2.
S11: MIG welding, namely welding the flange plate 4 and the steel pipe together, wherein the welding seam is required to be uniform and smooth;
s12: the clamp is assembled, mounted outside the protective layer 6 and tightened.
The embodiment also provides a detection method of the basalt heat insulation sleeve exhaust pipe, which comprises a temperature detection method, a noise detection method and an air tightness detection method.
The temperature detection method comprises the following steps:
s1: thermocouples are respectively arranged at the air inlet and the air outlet of the exhaust pipe and used for detecting the temperature.
S2: selecting three detection surfaces on the exhaust pipe, and respectively arranging a thermocouple on the pipe wall of the steel pipe or the steel wire layer 3, the heat preservation layer 5 and the protection layer 6 along the radial direction of each detection surface for detecting the temperature; those skilled in the art can also arrange an infrared detector outside the pipe body for detecting the temperature of the detection surface.
S3: the detection device is electrically connected with the computer, and transmits the detected data to the computer for data collection and analysis;
the noise detection method comprises the following steps:
s1: carrying out a bench test, and connecting the exhaust pipe with a noise source so as to charge noise;
s2: a sound-proof cover is arranged on the local part of the exhaust pipe, so that noise interference at other positions of the rack is prevented;
s3: measuring the noise decibel in the sound-proof shield through a test port;
the air tightness detection method comprises the following steps:
s1: introducing gas into the exhaust pipe;
s2: sealing two ends of the exhaust pipe;
s3: and maintaining the pressure for 15S under the air pressure of 0.6MPa, allowing the pressure difference to be set to be 3KPa, compensating the pressure to be 50KPa, and having no leakage under the condition that the test time is 10S.
The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (6)

1. The utility model provides a basalt insulation cover blast pipe which characterized in that: the corrugated pipe comprises a corrugated pipe, steel pipes, flange plates, two steel wire layers, a heat preservation layer and a protection layer, wherein the steel wire layers are woven by steel wires, the steel wire layers are wrapped on the outer surface of the heat preservation pipe, the steel wire layers are relatively fixed to the corrugated pipe, the number of the steel pipes is two, the first ends of the two steel pipes are respectively fixed to the two ends of the corrugated pipe, the flange plates are fixed to the second ends of the two steel pipes, the heat preservation layer is wrapped on the outer surfaces of the steel pipes and the steel wire layers, the heat preservation layer is a basalt knitted sleeve, the protection layer is wrapped on the outer surface of the heat preservation layer, the heat preservation layer is relatively fixed to the steel pipes, and the heat preservation layer is.
2. The basalt insulation sleeve exhaust pipe of claim 1, wherein: the protective layer is a composite aluminum foil protective layer.
3. The basalt insulation sleeve exhaust pipe of claim 1, wherein: still include the clamp, it is a plurality of the clamp is fixed in the surface of protective layer, the clamp is used for pressing from both sides tight protective layer.
4. The basalt insulation sleeve exhaust pipe of claim 1, wherein: the corrugated pipe is a double-layer corrugated pipe.
5. The manufacturing method of the basalt heat insulation sleeve exhaust pipe is characterized by comprising the following steps:
s1: carrying out feeding inspection, namely inspecting the corrugated pipe, the steel pipe and the flange;
s2: cleaning pipe orifices, and removing burrs of the pipe orifices of the corrugated pipes and the steel pipes;
s3: bending the steel pipe;
s4: cleaning, and removing impurities on the corrugated pipe and the steel pipe;
s5: cutting off the corrugated pipe and the steel pipe in a fixed length mode according to the requirement;
s6: removing burrs of pipe orifices of the corrugated pipe and the steel pipe;
s7: cleaning, and removing impurities on the corrugated pipe and the steel pipe;
s8: laser marking, namely printing required labels on the steel pipe;
s9: assembling a heat insulation layer and a protective layer;
s10: spot welding the flange plate to enable the pipe orifice at the second end of the steel pipe to be flush with the flange plate in assembly, wherein the spatial position of the flange plate conforms to the tool;
s11: MIG welding, namely welding the flange plate and the steel pipe together;
s12: and assembling, namely installing a clamp on the outer side of the protective layer.
6. A detection method for a basalt heat insulation sleeve exhaust pipe is characterized by comprising the following steps: the method comprises a temperature detection method, a noise detection method and an air tightness detection method;
the temperature detection method comprises the following steps:
s1: the air inlet and the air outlet of the exhaust pipe are respectively provided with a detection device;
s2: selecting a detection surface on the exhaust pipe, and arranging a detection device for detecting the temperature value of the detection surface;
s3: the detection device is electrically connected with the computer, and transmits the detected data to the computer for data collection and analysis;
the noise detection method comprises the following steps:
s1: connecting the exhaust pipe with a noise source;
s2: a sound-proof cover is made for the local part of the exhaust pipe;
s3: measuring the noise decibel in the sound-proof shield through a test port;
the air tightness detection method comprises the following steps:
s1: introducing gas into the exhaust pipe;
s2: sealing two ends of the exhaust pipe;
s3: at a predetermined pressure and time, the presence or absence of leakage was observed.
CN201911093641.5A 2019-11-11 2019-11-11 Basalt heat insulation sleeve exhaust pipe, manufacturing method and detection method thereof Pending CN111075547A (en)

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CN201911093641.5A CN111075547A (en) 2019-11-11 2019-11-11 Basalt heat insulation sleeve exhaust pipe, manufacturing method and detection method thereof

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Application Number Priority Date Filing Date Title
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CN111075547A true CN111075547A (en) 2020-04-28

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08127847A (en) * 1994-10-28 1996-05-21 Nippon Steel Corp Parts excellent in silentness and production thereof
CN1135015A (en) * 1996-01-30 1996-11-06 南昌赣中金属波纹管厂 Metallic bellows hose specially used for automobile exhaust, and prodn. method thereof
CN201163216Y (en) * 2008-02-29 2008-12-10 重庆长安汽车股份有限公司 Sound insulation box of engine air intake and exhaustion noise test device in entire vehicle state
CN201851202U (en) * 2010-11-12 2011-06-01 常州东风农机集团有限公司 Engine exhaust muffler device of combined harvester
CN102619608B (en) * 2012-04-24 2014-04-02 吴建忠 Noise reduction and heat insulation pad and production method thereof
CN104108001A (en) * 2013-04-18 2014-10-22 惠州东风易进工业有限公司 Exhaust pipe production process and system
CN105386842A (en) * 2015-12-18 2016-03-09 万向通达股份公司 Heat preservation and noise reduction automobile exhaust pipe
CN106246315A (en) * 2016-09-30 2016-12-21 重庆三二绝热制品有限公司 Exhaust pipe of engine heat-insulation and heat-preservation set and processing technique
CN208203402U (en) * 2018-05-11 2018-12-07 苏州普科环境技术有限公司 A kind of exhaust pipe thermal insulation shield
CN208518735U (en) * 2018-05-15 2019-02-19 江苏杰润绝热材料科技有限公司 A kind of collet and exhaust pipe
CN208669361U (en) * 2018-08-07 2019-03-29 玖龙纸业(重庆)有限公司 Gas leakage regulating mechanism for steam turbine rotary spacing plate down block

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08127847A (en) * 1994-10-28 1996-05-21 Nippon Steel Corp Parts excellent in silentness and production thereof
CN1135015A (en) * 1996-01-30 1996-11-06 南昌赣中金属波纹管厂 Metallic bellows hose specially used for automobile exhaust, and prodn. method thereof
CN201163216Y (en) * 2008-02-29 2008-12-10 重庆长安汽车股份有限公司 Sound insulation box of engine air intake and exhaustion noise test device in entire vehicle state
CN201851202U (en) * 2010-11-12 2011-06-01 常州东风农机集团有限公司 Engine exhaust muffler device of combined harvester
CN102619608B (en) * 2012-04-24 2014-04-02 吴建忠 Noise reduction and heat insulation pad and production method thereof
CN104108001A (en) * 2013-04-18 2014-10-22 惠州东风易进工业有限公司 Exhaust pipe production process and system
CN105386842A (en) * 2015-12-18 2016-03-09 万向通达股份公司 Heat preservation and noise reduction automobile exhaust pipe
CN106246315A (en) * 2016-09-30 2016-12-21 重庆三二绝热制品有限公司 Exhaust pipe of engine heat-insulation and heat-preservation set and processing technique
CN208203402U (en) * 2018-05-11 2018-12-07 苏州普科环境技术有限公司 A kind of exhaust pipe thermal insulation shield
CN208518735U (en) * 2018-05-15 2019-02-19 江苏杰润绝热材料科技有限公司 A kind of collet and exhaust pipe
CN208669361U (en) * 2018-08-07 2019-03-29 玖龙纸业(重庆)有限公司 Gas leakage regulating mechanism for steam turbine rotary spacing plate down block

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