CN111716764A - Method for winding glass fibers of CNG (compressed natural gas) cylinder - Google Patents
Method for winding glass fibers of CNG (compressed natural gas) cylinder Download PDFInfo
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- CN111716764A CN111716764A CN202010586860.3A CN202010586860A CN111716764A CN 111716764 A CN111716764 A CN 111716764A CN 202010586860 A CN202010586860 A CN 202010586860A CN 111716764 A CN111716764 A CN 111716764A
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- glass fiber
- water containing
- containing tank
- gas cylinder
- lining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/681—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
- B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
- B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
- B29B15/10—Coating or impregnating independently of the moulding or shaping step
- B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
- B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/78—Moulding material on one side only of the preformed part
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
- F17C2203/0648—Alloys or compositions of metals
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2154—Winding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a CNG cylinder glass fiber winding method, which is characterized by comprising the following steps: s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 3-8mm, the diameter of the lining is 20-50cm, and the height of the lining is 80-150 cm; s2, preparing a water containing tank with the volume of 1-1.5 cubic meters and the thickness of 3-6cm, and horizontally placing the gas cylinder in the S1 into the water containing tank in the S2; and S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 1-5mm higher than the gas cylinder in the water containing tank. According to the invention, through a winding method of crossing glass fibers, polypropylene glycol is sprayed on the surface of the glass fibers when the thickness is increased by 0.5cm, bubbles formed by extrusion between the fiber yarns are eliminated, so that the fiber yarns are attached more tightly, and the glass fibers are soaked in magnesium hydroxide solution, so that the attachment of the glass fibers is enhanced, the glass fibers are attached to the surface of the gas cylinder more firmly during winding, and the overall strength is enhanced.
Description
Technical Field
The invention relates to the technical field of CNG cylinder manufacturing, in particular to a CNG cylinder glass fiber winding method.
Background
CNG gas cylinders are high-pressure vessels used to store compressed natural gas, and such high-pressure vessels containing flammable and explosive gases are pressure vessels having explosive hazards. The gas storage pressure of the gas cylinder for the vehicle is 20MPa, and the glass fiber (English original name: glass fiber) is an inorganic non-metallic material with excellent performance, has various types, has the advantages of good insulativity, strong heat resistance, good corrosion resistance and high mechanical strength, but has the defects of brittleness and poor wear resistance. The hair-care fiber is made of seven kinds of ores of pyrophyllite, quartz sand, limestone, dolomite, borocalcite and boromagnesite through the processes of high-temperature melting, wire drawing, winding, weaving and the like, wherein the diameter of each monofilament ranges from several micrometers to twenty micrometers, the monofilament is equivalent to 1/20-1/5 of one hair, and each bundle of fiber precursor consists of hundreds of even thousands of monofilaments. The glass fiber is usually used as a reinforcing material in composite materials, an electrical insulating material, a heat insulating material, a circuit substrate and other fields of national economy, and in order to make the strength of the CNG cylinder higher, the surface of the CNG cylinder is wound with the glass fiber.
The fiber yarns of the glass fiber wound by the traditional gas cylinder are not tightly attached, the overall strength is not high enough, and the safety is low.
Disclosure of Invention
The invention aims to provide a method for winding glass fibers of a CNG (compressed natural gas) cylinder, which achieves the aims of tight fiber attachment, high strength and high safety.
In order to achieve the purpose, the invention provides the following technical scheme:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 3-8mm, the diameter of the lining is 20-50cm, and the height of the lining is 80-150 cm.
S2, preparing a water containing tank with the volume of 1-1.5 cubic meters and the thickness of 3-6cm, and horizontally placing the gas cylinder in the S1 into the water containing tank in the S2.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 1-5mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 50-90 ℃, keeping for 30-60min, taking out the gas cylinder, and naturally cooling for 20-35min in the temperature environment of 20-30 ℃.
S5, preparing a glass box with the volume of 0.8-1.3 cubic meters, filling 3-6 liters of magnesium hydroxide solution into the glass box, and putting the glass fiber into the magnesium hydroxide solution.
S6, continuously adding the magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be 2-8cm higher than the fiber, then soaking the glass fiber in the magnesium hydroxide solution for 40-80min, and turning the glass fiber 180 degrees every 5-10 min.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 30-70min at the temperature of 22-30 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 8-15min at any temperature to obtain the final glass fiber with the thickness of 3-8 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 60-120min, and naturally cooling at 22-26 ℃ after finishing soaking to obtain a final product.
Preferably, the liner of the gas cylinder in the S1 is formed in an integrated forming process.
Preferably, the water containing tank in the S2 is matched with the air bottle in the S1 in shape, the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
Preferably, the thickness of the glass box in S5 is 5-12 mm.
Preferably, the magnesium hydroxide solution in S5 and S6 has a concentration of 0.8% to 2.5% magnesium hydroxide, and the magnesium hydroxide solution further contains a dispersant having a concentration of 0.5% to 0.8%.
The invention provides a method. The method has the following beneficial effects:
(1) according to the invention, through a winding method of crossing glass fibers, polypropylene glycol is sprayed on the surface when the thickness is increased by 0.5cm, so that bubbles formed by extrusion between the fiber yarns are eliminated, and the fiber yarns are attached more tightly.
(2) According to the invention, the glass fiber is soaked in the magnesium hydroxide solution, so that the bonding property of the glass fiber is enhanced, the glass fiber is bonded with the surface of the gas cylinder more firmly during winding, the overall strength is enhanced, and the surface fireproof performance of the final product is enhanced by soaking the gas cylinder fully wound with the glass fiber in the aluminum hydroxide solution, so that the safety is enhanced.
Detailed Description
The first embodiment is as follows:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 3mm, the diameter of the lining is 20cm, the height of the lining is 80cm, and the lining of the gas cylinder is formed in an integrated mode.
S2, preparing a water containing tank with the volume of 1 cubic meter and the thickness of 3cm, transversely placing the gas cylinder in the S1 into the water containing tank in the S2, matching the shape of the gas cylinder in the S1 with the shape of the water containing tank, wherein the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 1mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 50 ℃ and last for 30min, then taking out the gas cylinder, and naturally cooling for 20min in a temperature environment of 20 ℃.
S5, preparing a glass box with the volume of 0.8 cubic meter, filling the glass box with 3 liters of magnesium hydroxide solution, and putting the glass fiber into the magnesium hydroxide solution, wherein the thickness of the glass box is 5 mm.
S6, adding magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be 2cm higher than the fiber, soaking the glass fiber in the magnesium hydroxide solution for 40min, and turning the glass fiber 180 degrees at intervals of 5min, wherein the concentration of magnesium hydroxide in the magnesium hydroxide solution is 0.8%, and the magnesium hydroxide solution also contains a dispersing agent with the concentration of 0.5%.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 30min at the temperature of 22 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 8min at any temperature to obtain the final glass fiber with the thickness of 3 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 60min, and naturally cooling at 22 ℃ after the soaking is finished to obtain a final product.
Example two:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 4mm, the diameter of the lining is 15cm, the height of the lining is 85cm, and the lining of the gas cylinder is formed in an integrated mode.
S2, preparing a water containing tank with the volume of 1.1 cubic meter and the thickness of 3.5cm, transversely placing the gas cylinder in the S1 into the water containing tank in the S2, wherein the water containing tank is matched with the gas cylinder in the S1 in shape, the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 1.8mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 55 ℃ and last for 35min, then taking out the gas cylinder, and naturally cooling for 25min in the environment with the temperature of 25 ℃.
S5, preparing a glass box with the volume of 0.9 cubic meter, filling 3.5 liters of magnesium hydroxide solution into the glass box, and putting the glass fiber into the magnesium hydroxide solution, wherein the thickness of the glass box is 6 mm.
S6, adding magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be higher than the fiber by 3cm, soaking the glass fiber in the magnesium hydroxide solution for 45min, and turning the glass fiber 180 degrees at intervals of 6min, wherein the concentration of magnesium hydroxide in the magnesium hydroxide solution is 0.9%, and the magnesium hydroxide solution also contains a dispersing agent with the concentration of 0.6%.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 35min at the temperature of 24 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 9min at any temperature to obtain the final glass fiber with the thickness of 4 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 65min, and naturally cooling at 23 ℃ after the soaking is finished to obtain a final product.
Example three:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 5mm, the diameter of the lining is 30cm, the height of the lining is 90cm, and the lining of the gas cylinder is formed in an integrated mode.
S2, preparing a water containing tank with the volume of 1.2 cubic meters and the thickness of 4cm, transversely placing the gas cylinder in the S1 into the water containing tank in the S2, wherein the water containing tank is matched with the gas cylinder in the S1 in shape, the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 1.2mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 60 ℃ and last for 40min, then taking out the gas cylinder, and naturally cooling for 26min in the environment with the temperature of 23 ℃.
S5, preparing a glass box with the volume of 1 cubic meter, filling the glass box with 5 liters of magnesium hydroxide solution, and putting the glass fiber into the magnesium hydroxide solution, wherein the thickness of the glass box is 7 mm.
S6, continuously adding the magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be 4cm higher than the fiber, then soaking the glass fiber in the magnesium hydroxide solution for 49min, and turning the glass fiber at 180 degrees every 5-10min, wherein the concentration of magnesium hydroxide in the magnesium hydroxide solution is 1%, and the magnesium hydroxide solution also contains a dispersing agent with the concentration of 0.57%.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 43min at the temperature of 25 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 10min at any temperature to obtain the final glass fiber with the thickness of 5 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 75min, and naturally cooling at 24 ℃ after the soaking is finished to obtain a final product.
Example four:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 3-8mm, the diameter of the lining is 35cm, the height of the lining is 95cm, and the lining of the gas cylinder is formed in an integrated mode.
S2, preparing a water containing tank with the volume of 1.4 cubic meters and the thickness of 5cm, transversely placing the gas cylinder in the S1 into the water containing tank in the S2, wherein the water containing tank is matched with the gas cylinder in the S1 in shape, the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 4mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 50-90 ℃, keeping for 50min, taking out the gas cylinder, and naturally cooling for 30min in a 28 ℃ temperature environment.
S5, preparing a glass box with the volume of 1.2 cubic meters, filling the glass box with 5 liters of magnesium hydroxide solution, and putting the glass fiber into the magnesium hydroxide solution, wherein the thickness of the glass box is 10 mm.
S6, adding magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be 7cm higher than the fiber, soaking the glass fiber in the magnesium hydroxide solution for 70min, and turning the glass fiber 180 degrees every 9min, wherein the concentration of magnesium hydroxide in the magnesium hydroxide solution is 2.3%, and the magnesium hydroxide solution also contains a dispersing agent with the concentration of 0.7%.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 60min at the temperature of 28 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 13min at any temperature to obtain the final glass fiber with the thickness of 7 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 110min, and naturally cooling at 25 ℃ after the soaking is finished to obtain a final product.
Example five:
a CNG cylinder glass fiber winding method comprises the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 8mm, the diameter of the lining is 50cm, the height of the lining is 150cm, and the lining of the gas cylinder is formed in an integrated mode.
S2, preparing a water containing tank with the volume of 1.5 cubic meters and the thickness of 6cm, transversely placing the gas cylinder in the S1 into the water containing tank in the S2, matching the shape of the gas cylinder in the S1 with the water containing tank, wherein the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
And S3, adding deionized water into the water containing tank in the S2, and enabling the water level of the deionized water to be 5mm higher than the gas cylinder in the water containing tank.
S4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 90 ℃ and last for 60min, then taking out the gas cylinder, and naturally cooling for 35min in a temperature environment of 30 ℃.
S5, preparing a glass box with the volume of 1.3 cubic meters, filling the glass box with 6 liters of magnesium hydroxide solution, and putting the glass fiber into the magnesium hydroxide solution, wherein the thickness of the glass box is 12 mm.
S6, continuously adding the magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be 8cm higher than the fiber, then soaking the glass fiber in the magnesium hydroxide solution for 80min, and turning the glass fiber 180 degrees at intervals of 10min, wherein the concentration of magnesium hydroxide in the magnesium hydroxide solution is 2.5%, and the magnesium hydroxide solution also contains a dispersing agent with the concentration of 0.8%.
And S7, taking out the glass fiber soaked in the S6, and naturally cooling for 70min at the temperature of 30 ℃.
S8, uniformly winding the glass fiber in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber wire is mutually overlapped.
And in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 15min at any temperature to obtain the final glass fiber with the thickness of 8 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 120min, and naturally cooling at 26 ℃ after the soaking is finished to obtain a final product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A CNG cylinder glass fiber winding method is characterized by comprising the following steps:
s1, preparing a lining of the gas cylinder, wherein the lining is made of aluminum alloy, the thickness of the lining is 3-8mm, the diameter of the lining is 20-50cm, and the height of the lining is 80-150 cm;
s2, preparing a water containing tank with the volume of 1-1.5 cubic meters and the thickness of 3-6cm, and horizontally placing the gas cylinder in the S1 into the water containing tank in the S2;
s3, adding deionized water into the water containing tank in S2, and enabling the water level of the deionized water to be 1-5mm higher than the gas cylinder in the water containing tank;
s4, heating the water containing tank in the S3 to enable the temperature of deionized water in the water containing tank to reach 50-90 ℃, keeping for 30-60min, taking out the gas cylinder, and naturally cooling for 20-35min in the temperature environment of 20-30 DEG C
S5, preparing a glass box with the volume of 0.8-1.3 cubic meters, filling 3-6 liters of magnesium hydroxide solution into the glass box, and putting glass fibers into the magnesium hydroxide solution;
s6, continuously adding magnesium hydroxide solution into the glass box in the S5, enabling the liquid level of the solution to be higher than the fibers by 2-8cm, then soaking the glass fibers in the magnesium hydroxide solution for 40-80min, and turning the glass fibers 180 degrees every 5-10 min;
s7, taking out the glass fiber soaked in the S6, and naturally cooling the glass fiber at the temperature of 22-30 ℃ for 30-70 min;
s8, uniformly winding the glass fibers in the S7 on the surface of the gas cylinder in the S4, wherein the winding method adopts cross winding, and each fiber yarn is mutually overlapped;
and in S9 and S8, when the winding thickness of the glass fiber is increased by 0.5cm, uniformly spraying polypropylene glycol on the surface of the glass fiber, and standing for 8-15min at any temperature to obtain the final glass fiber with the thickness of 3-8 cm.
And S10, placing the gas cylinder wrapped with the glass fiber in the S9 into a container filled with an aluminum hydroxide solution, soaking for 60-120min, and naturally cooling at 22-26 ℃ after finishing soaking to obtain a final product.
2. The method for winding the glass fiber of the CNG cylinder according to claim 1, wherein: and the liner of the gas cylinder in the S1 adopts an integrated molding process.
3. The method for winding the glass fiber of the CNG cylinder according to claim 1, wherein: the water containing tank in the S2 is matched with the air bottle in the S1 in shape, the water containing tank is made of stainless steel, and the inner wall of the water containing tank is coated with an anticorrosive coating.
4. The method for winding the glass fiber of the CNG cylinder according to claim 1, wherein: the thickness of the glass box in the S5 is 5-12 mm.
5. The method for winding the glass fiber of the CNG cylinder according to claim 1, wherein: the magnesium hydroxide solution in S5 and S6 has a concentration of 0.8-2.5% magnesium hydroxide, and further contains 0.5-0.8% dispersant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010586860.3A CN111716764A (en) | 2020-06-24 | 2020-06-24 | Method for winding glass fibers of CNG (compressed natural gas) cylinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010586860.3A CN111716764A (en) | 2020-06-24 | 2020-06-24 | Method for winding glass fibers of CNG (compressed natural gas) cylinder |
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| CN111716764A true CN111716764A (en) | 2020-09-29 |
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| CN202010586860.3A Pending CN111716764A (en) | 2020-06-24 | 2020-06-24 | Method for winding glass fibers of CNG (compressed natural gas) cylinder |
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Citations (9)
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