WO2022134799A1 - 一种全复合材料气囊式压力罐及其制作方法 - Google Patents

一种全复合材料气囊式压力罐及其制作方法 Download PDF

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Publication number
WO2022134799A1
WO2022134799A1 PCT/CN2021/124987 CN2021124987W WO2022134799A1 WO 2022134799 A1 WO2022134799 A1 WO 2022134799A1 CN 2021124987 W CN2021124987 W CN 2021124987W WO 2022134799 A1 WO2022134799 A1 WO 2022134799A1
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WO
WIPO (PCT)
Prior art keywords
airbag
connection port
pressure tank
composite
elbow
Prior art date
Application number
PCT/CN2021/124987
Other languages
English (en)
French (fr)
Inventor
吕广普
张立君
杜泽强
张超纲
胡亮
刘洪上
杜相荣
李冬霜
Original Assignee
西安向阳航天材料股份有限公司
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 西安向阳航天材料股份有限公司 filed Critical 西安向阳航天材料股份有限公司
Priority to JP2022573225A priority Critical patent/JP7421665B2/ja
Publication of WO2022134799A1 publication Critical patent/WO2022134799A1/zh
Priority to US17/945,061 priority patent/US11988333B2/en

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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
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/60—Winding and joining, e.g. winding spirally helically using internal forming surfaces, e.g. mandrels
    • 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
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
    • 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
    • B29C70/70—Completely encapsulating inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D22/00—Producing hollow articles
    • B29D22/003—Containers for packaging, storing or transporting, e.g. bottles, jars, cans, barrels, tanks
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B11/02—Arrangements or adaptations of tanks for water supply for domestic or like local water supply
    • E03B11/06—Arrangements or adaptations of tanks for water supply for domestic or like local water supply with air regulators
    • E03B11/08—Air regulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2623/00—Use of polyalkenes or derivatives thereof for preformed parts, e.g. for inserts
    • B29K2623/04—Polymers of ethylene
    • B29K2623/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00—Arrangements or adaptations of tanks for water supply
    • E03B2011/005—Tanks with two or more separate compartments divided by, e.g. a flexible membrane
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0176—Shape variable
    • F17C2201/018—Shape variable with bladders
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/032—Orientation with substantially vertical main axis
    • 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0621—Single wall with three layers
    • 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
    • F17C2203/066—Plastics
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • 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
    • F17C2209/2109—Moulding
    • F17C2209/2127—Moulding by blowing
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00—Water conservation; Efficient water supply; Efficient water use

Definitions

  • the invention relates to the technical field of airbag type pressure tanks, in particular to an all-composite material airbag type pressure tank and a manufacturing method thereof.
  • the airbag-type pressure tank is mainly made of a steel shell and has a built-in rubber airbag.
  • the pressure When the pressure is reached, stop the water supply.
  • the water loss pressure decreases, the gas pressure in the pressure tank is greater than the water pressure.
  • the gas expands and squeezes the water in the airbag pressure tank into the system until the gas pressure and the water pressure reach an agreement. stop draining.
  • the disadvantage of this airbag pressure tank is that the steel shell is easy to rust in application, and the rubber airbag is easy to be damaged and replaced frequently.
  • the present invention provides an all-composite airbag type pressure tank, which is resistant to pressure and corrosion, solves the problems of easy corrosion of the shell, easy damage of the airbag, short service life, and simple manufacturing process.
  • the present invention provides an all-composite airbag type pressure tank, including a shell, an airbag, a gas nozzle and an elbow;
  • the shell includes an inner lining and glass fibers arranged on the outer side of the inner lining, the inner lining is made of polyethylene (PE) material, and the inner lining is formed with a first connection port and a second connection port;
  • PE polyethylene
  • the airbag is located in the inner cavity of the inner liner and is spaced apart from the inner wall of the inner liner, and the airbag is made of polyurethane material;
  • the air nozzle is communicated with the airbag, and the air nozzle is inserted and sealed and fixed to the first connection port;
  • the elbow includes a first end and a second end, the first end is connected to the second connection port and communicated with the inner cavity of the inner liner, and the second end is communicated to the system pipeline.
  • the all-composite airbag pressure tank further includes a fixing column connected to the airbag, the elbow further includes a fixing plate arranged at the first end, and the fixing column is fixedly inserted into the airbag. Fixed plate.
  • the first end is provided with a bayonet, and the fixing plate is clamped with the bayonet.
  • the fixing column and the airbag are integrally formed.
  • connection port is provided with an inner thread
  • first end is provided with an outer thread
  • first end and the second connection port are screwed together by an outer thread and an inner thread
  • the air nozzle and the air bag are integrally formed. Further, the first connection port is arranged on the top of the inner liner, the second connection port is arranged at the bottom of the inner liner, the bottom of the outer shell is provided with legs, and the outer shell is fixedly supported on the the outriggers.
  • the second connection port has an outer edge
  • the support leg is fixedly provided with a fixing sleeve
  • the fixing sleeve is fixedly sleeved on the outer edge
  • a sealing gasket is arranged in the first connection port, and the air nozzle is fixedly connected to the first connection port and the sealing gasket through bolts.
  • the maximum working pressure of the shell is 1.0Mpa
  • the maximum working pressure of the airbag is 0.2Mpa.
  • the distance between the airbag and the inner wall of the inner liner after inflation is 4.5-5.5 mm.
  • the present invention also provides the above-mentioned manufacturing method of the all-composite airbag-type pressure tank, which includes: firstly, the airbag is manufactured by integral molding of hollow blow molding, and the air nozzle and the airbag are connected by integral molding of injection molding; Make an inner liner with a first connection port and a second connection port, and wrap the glass fiber on the outer wall of the inner liner to form a shell; secondly, place the uninflated air bag in the inner liner and fix it, and the gas nozzle passes through the first connection The port is sealed and fixed, and the elbow is fixedly communicated with the second connection port; finally, the airbag is filled with inert gas under pressure through the gas nozzle, and the elbow is connected to the system pipeline.
  • the present invention adopts PE high-density polyethylene as the inner lining, and arranges glass fibers on the outside of the inner lining, so as to form an outer shell composed of PE inner lining and glass fibers, which greatly improves the use pressure of the outer shell
  • the air bag is made of polyurethane, and the air nozzle is connected to the air bag, which ensures the pressure resistance of the air bag and greatly improves the use pressure of the air bag.
  • the all-composite airbag-type pressure tank of the present invention has the advantages of pressure resistance and corrosion resistance, unsuitable for damage, and long service life.
  • the gas nozzle and the airbag are integrally formed, thereby ensuring the airtightness of the airbag.
  • the airbag is connected to the fixing column, the elbow is fixedly provided with a fixing plate, and the fixing column is used to be fixedly inserted into the fixing plate, so that the airbag is fixed in the inner lining, and the fixing is firm and stable, and the elbow and the fixing plate are clamped and fixed by the bayonet.
  • the elbow and the second connection port are threadedly connected to ensure the sealing and connection stability of the connection between the two.
  • the bottom of the casing is supported by the legs to ensure the position stability of the casing, and the legs are fixedly sleeved on the outer edge of the second connection port through the fixing sleeve, which further ensures the stability of the connection between the casing and the legs.
  • the manufacturing method of the present invention adopts hollow blow molding to manufacture the airbag, and the air nozzle and the airbag are connected by injection molding, which fully guarantees the overall airtightness and pressure resistance of the airbag.
  • the fibers are wound on the outer wall of the inner lining to form a shell and improve the pressure resistance of the shell.
  • the manufacturing method of the present invention makes the shell as a whole not only has the characteristics of pressure resistance and corrosion resistance, but also is light in quality, and the interior is clean and hygienic.
  • the airbag is integrally formed with polyurethane material. The sealing performance and pressure resistance are good, and the process is simple and easy to implement.
  • FIG. 1 is a schematic structural diagram of an embodiment of the present invention
  • the embodiment of the present invention provides an all-composite airbag pressure tank.
  • the airbag 5 and the outer shell of the pressure tank are made of composite materials, and are mainly used in central air conditioners, boilers, water heaters, frequency conversion, and constant pressure water supply equipment. , its role is to buffer the system pressure fluctuations, eliminate water hammer, play the role of pressure stabilization and unloading and a small amount of water at night.
  • the embodiment of the present invention specifically includes: an outer casing and an airbag 5 arranged in the outer casing, the outer casing includes an inner liner 3 and a glass fiber 4 wound around the outer side of the inner liner 3, and the inner liner 3 is made of polyethylene (PE) material
  • the inner liner 3 has a first connection port 6 and a second connection port 9, the airbag 5 is located in the inner cavity of the inner liner 3, and is spaced from the inner wall of the inner liner 3, the airbag 5 is made of polyurethane material, and the airbag 5 is integrated
  • a gas nozzle 7 is formed and communicated, the gas nozzle 7 is plugged and sealed and fixed to the first connection port 6, the second connection port 9 is fixedly connected with an elbow 1, and the first end of the elbow 1 is connected to the inner part through the second connection port 9.
  • the inner cavity of the lining 3 is connected, and the second end of the elbow 1 is connected to the system pipeline.
  • PE high-density polyethylene is used as the inner lining 3, and the glass fiber 4 is wound on the outside of the inner lining 3, so as to form an outer shell composed of the PE inner lining 3 and the glass fiber 4, which greatly improves the performance of the outer shell.
  • the use pressure of the air bag 5 is made of polyurethane, and the air nozzle 7 is integrally formed and connected to the air bag 5, thereby ensuring the overall airtightness and pressure resistance of the air bag 5, greatly improving the use pressure of the air bag 5, and the air bag 5 and the inner
  • the inner wall of the lining 3 is spaced apart to ensure a certain gap to form a water flow channel to ensure the smooth passage of the water flow when the water pressure and air pressure are balanced, and the elbow 1 is used to communicate with the inner cavity of the lining 3 through the second connection port 9, and the bending
  • the head 1 is connected to the system pipeline that needs to be pressure balanced and replenished.
  • the shell as a whole not only has the characteristics of pressure resistance and corrosion resistance, but also is light in quality and clean and hygienic inside. Pressure and corrosion resistance, unsuitable for damage, long service life and other advantages.
  • the airbag 5 is integrally formed with a fixing column 13 , the first end of the elbow 1 is fixedly provided with a fixing plate 8 , and the fixing column 13 is fixedly inserted into the fixing plate 8 .
  • the first end of the elbow 1 is provided with a bayonet, and the fixing plate 8 is clamped with the bayonet.
  • the second connection port 9 is provided with an inner thread, the first end of the elbow 1 is provided with an outer thread, and the elbow 1 and the second connection port 9 are threadedly connected by the outer thread and the inner thread.
  • the second end of the elbow 1 is sleeved with a live joint 10, which is connected to the system pipeline through the live joint 10.
  • the airbag 5 is integrally formed with the fixing column 13
  • the elbow 1 is fixedly provided with the fixing plate 8
  • the fixing column 13 is used to fix and insert the fixing plate 8 , so that the airbag 5 is fixed in the inner lining 3 , and the fixing is firm and stable.
  • the elbow 1 and the fixing plate 8 are clamped and fixed by the bayonet, which is reliable and convenient for installation and disassembly.
  • the elbow 1 and the second connection port 9 are threadedly connected to ensure the sealing and connection stability of the connection between the two.
  • the first connection port 6 is provided at the top of the inner liner 3
  • the second connection port 9 is provided at the bottom of the inner liner 3
  • the bottom of the outer shell is provided with a leg 2
  • the outer shell is fixedly supported on the leg 2 .
  • the second connection port 9 is arranged at the bottom of the inner liner 3 so that the water can flow in and out from the inside of the inner liner 3 .
  • the second connection port 9 has an outer edge
  • the leg 2 is fixedly provided with a fixing sleeve
  • the fixing sleeve is fixedly sleeved on the outer edge.
  • the outrigger 2 is made of PP material and is integrally formed by injection molding.
  • a door hole and a fixed sleeve are designed on the outrigger.
  • the elbow 1 passes through the door hole and is threadedly connected to the second connection port 9. so that when the shell is supported on the outriggers 2, the two fit together reliably.
  • the shape of the shell in this embodiment is roughly cylindrical, the bottom of the shell is arc-shaped, and the upper end surface of the outrigger 2 is correspondingly provided with The arc surface that matches the shell.
  • the bottom of the casing is supported by the legs 2 to ensure the stability of the position of the casing, and the legs 2 are fixedly sleeved on the outer edge of the second connection port 9 through the fixing sleeve, which further ensures the stability of the connection between the casing and the legs 2 .
  • the elbow 1 is integrally formed by CPVC injection molding, and the bottom of the external thread of the first end of the elbow 1 is designed with an extended edge, which can be fixedly connected with the outrigger 2 .
  • a sealing gasket 11 is provided in the first connection port 6 , the air nozzle 7 is fixedly connected to the first connection port 6 and the sealing gasket 11 through bolts 12 to ensure sealing, and the air nozzle 7 and the air bag 5 are lined in the lining 3 internal stability.
  • the gasket 11 is a rubber gasket.
  • the maximum working pressure of the shell reaches 1.0Mpa
  • the maximum working pressure of the airbag 5 reaches 0.2Mpa.
  • the distance between the airbag 5 and the inner wall of the lining 3 after inflation is 4.5-5.5mm, Preferably it is 5mm.
  • the present invention also provides a method for manufacturing an all-composite airbag-type pressure tank, which includes: firstly, the airbag 5 is fabricated by integrally forming hollow blow molding, and the air nozzle 7 and the airbag 5 are connected by integral molding by injection molding; The inner liner 3 with the first connection port 6 and the second connection port 9 is formed by molding, and the glass fiber 4 is dipped and wrapped around the outer wall of the inner liner 3 to form a shell; secondly, the uninflated airbag 5 is placed in the inner liner 3 and fixed, the gas nozzle 7 passes through the first connection port 6 and is sealed and fixed, and the elbow 1 is in fixed communication with the second connection port 9; finally, the air bag 5 is filled with pressure inert gas through the gas nozzle 7, and the elbow 1 is connected to the system in the pipeline.
  • the production method specifically includes:
  • the airbag 5 is integrally formed by hollow blow molding, and the part of the air nozzle 7 and the airbag 5 are bonded by the injection molding process, and the fixed column 13 is integrally formed at the bottom of the airbag 5, and designed fixed plate 8;
  • the inner lining 3 is made of PE material, and hollow blow molding is selected for integral molding, and the first connection port 6 and the second connection port 9 are integrally molded to form the first connection port 6 and the second connection port 9.
  • the first connection port 6 and the second connection port 9 have outward
  • the outer edge of the lining, and the inner wall of the second connection port 9 is provided with an inner thread; then the glass fiber 4 is dipped in glue and is continuously wound and formed on the outside of the inner lining 3 to form a shell;
  • the outrigger 2 is made of PP material and is integrally formed by injection molding, and a door hole and a fixed sleeve are designed on the outrigger;
  • high-density polyethylene is used as the inner lining 3 of the pressure tank, and glass fibers 4 are continuously wound around, so that the maximum working pressure of the formed pressure tank shell can reach 1.0 MPa.
  • the built-in air bag 5 is made of polyurethane and is integrally formed by hollow blow molding.
  • the connection between the air nozzle 7 and the air bag 5 is integrally formed by injection molding. The combination of the two processes ensures the overall airtightness and pressure resistance of the air bag 5, and the operating pressure can reach 0.2MPa.
  • the gap between the inner wall of the lining 3 is about 5mm, which can ensure the smooth passage of the water flow when the water pressure and the air pressure are balanced.
  • the air nozzle 7 is fixed to the upper part of the casing with bolts 12, and is sealed with a rubber gasket 11.
  • the lower end of the airbag 5 is designed with a fixing column 13 and a fixing plate 8, which are fixed on the lower elbow 1 for water inlet and outlet.
  • the legs 2 of the pressure tank are injection-molded with PP material, and an elbow 1 is used to fix the legs on the bottom of the pressure tank.
  • the elbow 1 is integrally formed by CPVC injection molding, and a bayonet is designed on the elbow, which is connected with the fixing plate 8 by clamping, and plays the role of fixing the airbag 5 .
  • the bottom of the external thread of the first end of the elbow 1 is designed with an extension edge, which can be fixedly connected with the outrigger 2 .
  • the edge of the second connection port 9 of the elbow 1 and the lining 3 is connected by a screw thread, and the elbow 1 and the system pipeline are connected by a union 10 .
  • the embodiment of the present invention solves the complexity of the conventional airbag pressure tank in the manufacturing process, and the problems of easy corrosion of the shell, easy damage of the airbag, and short service life. , so that the shell as a whole not only has the characteristics of pressure resistance and corrosion resistance, but also light in quality and clean and hygienic inside.
  • the airbag 5 is integrally formed with polyurethane material, and has good sealing performance and pressure resistance.
  • the connecting parts of the airbag 5 and the housing and the outriggers 2 are fixed by bolts and bayonet, which is easy to install and disassemble.
  • the whole pressure tank has a simple manufacturing process, is pressure-resistant and corrosion-resistant, the PE lining 3 has high cleanliness and no corrosion occurs, and the airbag 5 adopts integrated molding technology, which is not suitable for damage and has a long service life.

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Abstract

一种全复合材料气囊式压力罐及其制作方法，包括外壳、气囊(5)、气嘴(7)和弯头(1)；外壳包括内衬(3)以及设置于内衬(3)外侧的玻璃纤维(4)，内衬(3)由聚乙烯(PE)材质制成，内衬(3)形成有第一连接口(6)和第二连接口(9)；气囊(5)位于内衬(3)的内腔，且与内衬(3)的内壁间隔设置，气囊(5)由聚氨酯材质制成；气嘴(7)连通于气囊(5)，并且气嘴(7)插接且密封固定于第一连接口(6)；弯头(1)包括第一端和第二端，第一端连接于第二连接口(9)且与内衬(3)的内腔连通，第二端连通至系统管路。该气囊式压力罐耐压耐腐蚀，解决了外壳易腐蚀，气囊易损坏，使用寿命短的问题，且制作工艺简单。

Description

一种全复合材料气囊式压力罐及其制作方法 技术领域
本发明涉及气囊式压力罐技术领域，具体涉及一种全复合材料气囊式压力罐及其制作方法。
背景技术
现有技术中气囊式压力罐主要以钢制外壳为本体，内置橡胶材质气囊，根据波尔定律PV＝C，当气体受到压缩后体积变小压力升高，直到压力罐内气体压力与水压达到一致时停止进水，当水流失压力降低时，压力罐内气体压力大于水的压力，此时气体膨胀将气囊压力罐内的水挤出补到系统中，直到气体压力与水压达成一致时停止排水。主要应用于系统压力波动和部分给水作用。这种气囊式压力罐缺点是钢制外壳在应用中易锈蚀，橡胶气囊易损坏，更换频繁。
发明内容
为了解决现有技术中的问题，本发明提供了一种全复合材料气囊式压力罐，耐压耐腐蚀，解决了外壳易腐蚀，气囊易损坏，使用寿命短的问题，且制作工艺简单。
为了实现以上目的，本发明提供了一种全复合材料气囊式压力罐，包括外壳、气囊、气嘴和弯头；
所述外壳包括内衬以及设置于所述内衬的外侧的玻璃纤维，所述内衬由聚乙烯(PE)材质制成，所述内衬形成有第一连接口和第二连接口；
所述气囊位于所述内衬的内腔，且与所述内衬的内壁间隔设置，所述气囊由聚氨酯材质制成；
所述气嘴连通于所述气囊，并且所述气嘴插接且密封固定于所述第一连接口；
所述弯头包括第一端和第二端，所述第一端连接于所述第二连接口且与所述内衬的内腔连通，所述第二端连通至系统管路。
进一步地，所述全复合材料气囊式压力罐还包括连接于所述气囊的固定柱，所述弯头还包括设于所述第一端的固定板，所述固定柱固定插接于所述固定板。
进一步地，所述第一端设有卡口，所述固定板与所述卡口卡接。
进一步地，所述固定柱和所述气囊一体成型。
进一步地，所述第二连接口设置有内螺纹，所述第一端设置有外螺纹，所述第一端与所述第二连接口通过外螺纹和内螺纹螺接；或者，
所述气嘴和所述气囊一体成型。进一步地，所述第一连接口设置于所述内衬的顶部，所述第二连接口设置于所述内衬的底部，所述外壳的底部设置有支腿，所述外壳固定支撑于所述支腿。
进一步地，所述第二连接口具有外沿，所述支腿固定设置有固定套，所述固定套固定套设于所述外沿。
进一步地，所述第一连接口内设置有密封垫，所述气嘴通过螺栓与所述第一连接口和所述密封垫固定连接。
进一步地，所述外壳的最大使用压力为1.0Mpa，所述气囊的最大使用压力为0.2Mpa。
进一步地，所述气囊充气后与所述内衬的内壁的间隔距离为4.5～5.5mm。
本发明还提供了上述的一种全复合材料气囊式压力罐的制作方法，包括：首先采用中空吹塑一体成型制作气囊，且气嘴与气囊采用注塑一体成型连接；然后采用中空吹塑一体成型制作具有第一连接口和第二连接口的内衬，并将玻璃纤维缠绕于内衬的外壁，形成外壳；其次将未充气的气囊置于内衬内并固定，气嘴穿过第一连接口并密封固定，弯头与第二连接口固定连通；最后通过气嘴给气囊充压力惰性气体，并将弯头连接至系统管路中。
与现有技术相比，本发明采用PE高密度聚乙烯作为内衬，并在内衬的外侧设置 玻璃纤维，从而形成由PE内衬和玻璃纤维构成的外壳，大大提高了外壳的使用压力，气囊采用聚氨酯为材质，且气嘴与气囊相连通，从而保证了气囊的耐压性，大大提高了气囊的使用压力，且气囊与内衬的内壁间隔，保证一定的间隙，形成水流通道，以保证水压与气压平衡时水流的顺利通过，并利用弯头通过第二连接口与内衬的内腔连通，且弯头连通至需要进行压力平衡和补水的系统管路中。从而，本发明的全复合材料气囊式压力罐具有耐压耐腐蚀、不宜损坏、使用寿命长等优点。
进一步地，气嘴与气囊一体成型，从而保证了气囊的密封性。
进一步地，气囊连接固定柱，弯头固定设置固定板，利用固定柱固定插接于固定板，从而将气囊固定于内衬中，固定牢靠稳定，且弯头与固定板通过卡口卡接固定，固定可靠，方便安装拆卸，另外，弯头与第二连接口螺纹连接，保证了两者连接的密封及连接稳固性。
进一步地，外壳的底部通过支腿支撑，保证外壳的位置稳固性，且支腿通过固定套固定套接于第二连接口的外沿，更加保证了外壳与支腿连接的稳固性。
本发明的制作方法采用中空吹塑一体成型制作气囊，且气嘴与气囊采用注塑一体成型连接，充分保证了气囊整体密封性以及耐压性，采用中空吹塑一体成型制作内衬，并将玻璃纤维缠绕于内衬的外壁，形成外壳，提高外壳的耐压性，本发明的制作方法使得外壳整体不但具有耐压耐腐蚀的特性，而且质量轻便，内部清洁卫生，气囊采用聚氨酯材质一体成型，密封性及耐压性能较好，且工艺简单易行。
附图说明
图1是本发明实施例的结构示意图；
其中，1-弯头、2-支腿、3-内衬、4-玻璃纤维、5-气囊、6-第一连接口、7-气嘴、8-固定板、9-第二连接口、10-活接、11-密封垫、12-螺栓、13-固定柱。
具体实施方式
下面结合说明书附图和具体的实施例对本发明作进一步地解释说明，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本发明实施例提供了一种全复合材料气囊式压力罐，该压力罐中的气囊5以及外壳，均使用复合材料进行制作，主要用于中央空调、锅炉、热水器、变频、恒压供水设备中，其作用是缓冲系统压力波动，消除水锤，起到稳压卸荷以及夜间少量补水的作用。
参见图1，本发明实施例具体包括：外壳和设置于外壳内的气囊5，外壳包括内衬3以及缠绕设置于内衬3的外侧的玻璃纤维4，内衬3由聚乙烯(PE)材质制成，内衬3具有第一连接口6和第二连接口9，气囊5位于内衬3的内腔，且与内衬3的内壁间隔设置，气囊5由聚氨酯材质制成，气囊5一体成型连通连接有气嘴7，气嘴7插接且密封固定于第一连接口6，第二连接口9固定连接有弯头1，弯头1的第一端通过第二连接口9与内衬3的内腔连通，弯头1的第二端连通至系统管路。
可以理解的是，本实施例采用PE高密度聚乙烯作为内衬3，并在内衬3的外侧缠绕玻璃纤维4，从而形成由PE内衬3和玻璃纤维4构成的外壳，大大提高了外壳的使用压力，气囊5采用聚氨酯为材质，且气嘴7与气囊5一体成型连通连接，从而保证了气囊5整体密封性以及耐压性，大大提高了气囊5的使用压力，且气囊5与内衬3的内壁间隔，保证一定的间隙，形成水流通道，以保证水压与气压平衡时水流的顺利通过，并利用弯头1通过第二连接口9与内衬3的内腔连通，且弯头1连通至需要进行压力平衡和补水的系统管路中。外壳整体不但具有耐压耐腐蚀的特性，而且质量轻便，内部清洁卫生，气囊5采用聚氨酯材质一体成型，密封性及耐压性能较好，从而，本实施例的全复合材料气囊式压力罐具有耐压耐腐蚀、不宜损坏、使用寿命长 等优点。
具体地，气囊5一体成型设置有固定柱13，弯头1的第一端固定设置有固定板8，固定柱13固定插接于固定板8。优选地，弯头1的第一端设置有卡口，固定板8与卡口卡接。优选地，第二连接口9设置有内螺纹，弯头1的第一端设置有外螺纹，弯头1与第二连接口9通过外螺纹和内螺纹螺接。弯头1的第二端套设有活接10，通过活接10与系统管道连接。
本实施例中气囊5通过一体成型设置固定柱13，弯头1固定设置固定板8，利用固定柱13固定插接于固定板8，从而将气囊5固定于内衬3中，固定牢靠稳定，且弯头1与固定板8通过卡口卡接固定，固定可靠，方便安装拆卸，另外，弯头1与第二连接口9螺纹连接，保证了两者连接的密封及连接稳固性。
具体地，第一连接口6设置于内衬3的顶部，第二连接口9设置于内衬3的底部，外壳的底部设置有支腿2，外壳固定支撑于支腿2。第二连接口9设置于内衬3的底部这样便于水流从内衬3的内部进出。优选地，第二连接口9具有外沿，支腿2固定设置有固定套，固定套固定套设于外沿。支腿2采用PP材质通过注塑方式一体成型，在支腿上设计门洞以及固定套，弯头1穿过门洞与第二连接口9螺纹连接，支腿2的上端面外形与外壳的底部外形相适配，以使外壳支撑于支腿2时，两者可靠地贴合，本实施例的外壳的形状大致呈圆柱状，外壳的底部呈弧形，支腿2的上端面相应地设有与外壳相适配的弧面。外壳的底部通过支腿2支撑，保证外壳的位置稳固性，且支腿2通过固定套固定套接于第二连接口9的外沿，更加保证了外壳与支腿2连接的稳固性。弯头1采用CPVC注塑一体成型，并且弯头1的第一端的外螺纹底部设计了延伸边，可与支腿2固定连接。
优选地，第一连接口6内设置有密封垫11，气嘴7通过螺栓12与第一连接口6和密封垫11固定连接，以保证密封性，以及气嘴7和气囊5在内衬3内的稳固性。 密封垫11为橡胶密封垫。
本实施例中，外壳的最大使用压力达到1.0Mpa，气囊5的最大使用压力达到0.2Mpa，为了保证水流运动的顺畅，气囊5充气后与内衬3的内壁的间隔距离为4.5～5.5mm，优选为5mm。
本发明还提供了一种全复合材料气囊式压力罐的制作方法，包括：首先采用中空吹塑一体成型制作气囊5，且气嘴7与气囊5采用注塑一体成型连接；然后采用中空吹塑一体成型制作具有第一连接口6和第二连接口9的内衬3，并将玻璃纤维4浸胶缠绕于内衬3的外壁，形成外壳；其次将未充气的气囊5置于内衬3内并固定，气嘴7穿过第一连接口6并密封固定，弯头1与第二连接口9固定连通；最后通过气嘴7给气囊5充压力惰性气体，并将弯头1连接至系统管路中。
制作方法具体包括：
1、制作气囊5：使用聚氨酯材质，通过中空吹塑一体成型形成气囊5，且气嘴7的部分与气囊5通过注塑工艺进行粘接，并在气囊5的底部一体成型固定柱13，并设计固定板8；
2、制作外壳：内衬3使用PE材质，选择中空吹塑一体成型，并一体成型形成第一连接口6与第二连接口9，第一连接口6与第二连接口9均具有向外的外沿，并第二连接口9的内壁设置内螺纹；再将玻璃纤维4浸胶后不间断连续缠绕成型于内衬3外侧，形成外壳；
3、制作支腿2：支腿2采用PP材质通过注塑方式一体成型，并在支腿上设计门洞以及固定套；
4、制作螺纹式的弯头1：在弯头1的第一端设置外螺纹，并设置卡口，并在第二端设置安装活接10的外螺纹；
5、整体安装：将气囊5在未充气的状态下置于内衬3内，气嘴7穿过第一连接 口6，并使用螺栓12进行固定，上部密封采用密封垫11进行密封；气囊5的固定柱13穿过固定板8，将固定板8卡在弯头1的卡口上；将弯头1穿过支腿2的门洞，将支腿2的固定套套入第二连接口9的外沿，将弯头1的外螺纹旋入第二连接口9的内螺纹；
6、安装完成后，给气囊5根据使用情况充小于或等于26psi压力惰性气体，使用活接10将整个气囊式压力罐连接到系统管路中。
本发明实施例采用高密度聚乙烯为压力罐的内衬3，用玻璃纤维4不间断缠绕，形成的压力罐外壳最高使用压力可达1.0MPa。内置的气囊5采用聚氨酯为材质，以中空吹塑一体成型，气嘴7与气囊5连接采用注塑一体成型，两种工艺的结合，保证了气囊5整体密封性以及耐压性，使用压力可达到0.2MPa。气囊5充气后与内衬3的内壁之间空隙为5mm左右，可保证水压与气压平衡时水流的顺利通过。气嘴7用螺栓12固定在外壳上部，采用橡胶的密封垫11进行密封。气囊5下端设计了固定柱13及固定板8，固定在下部进出水的弯头1上。压力罐的支腿2采用PP材质注塑成型，使用弯头1将支腿固定在压力罐底部。弯头1采用CPVC注塑一体成型，弯头上设计了卡口，与固定板8卡接连接，起到固定气囊5的作用。并且弯头1的第一端的外螺纹底部设计了延伸边，可与支腿2固定连接。弯头1与内衬3的第二连接口9的边沿采用螺纹连接，弯头1与系统管道采用活接10连接。
本发明实施例解决了常规气囊式压力罐在制作工艺中的复杂性，以及外壳易腐蚀、气囊易损坏、使用寿命短的问题，外壳是将PE内衬3经过玻璃纤维4浸胶后缠绕成型，使得外壳整体不但具有耐压耐腐蚀的特性，而且质量轻便，内部清洁卫生。气囊5采用聚氨酯材质一体成型，密封性及耐压性能良好，气囊5与外壳以及支腿2连接部分采用螺栓及卡口固定，安装容易，拆卸方便。整个压力罐制作工艺简单，耐压耐腐蚀，PE内衬3清洁度高，无腐蚀发生，气囊5采用一体成型技术，不宜损坏，使 用寿命长。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明实施例技术方案的范围。

Claims (11)

  1. 一种全复合材料气囊式压力罐，其特征在于，包括外壳、气囊(5)、气嘴(7)和弯头(1)；
    所述外壳包括内衬(3)以及设置于所述内衬(3)的外侧的玻璃纤维(4)，所述内衬(3)由聚乙烯(PE)材质制成，所述内衬(3)形成有第一连接口(6)和第二连接口(9)；
    所述气囊(5)位于所述内衬(3)的内腔，且与所述内衬(3)的内壁间隔设置，所述气囊(5)由聚氨酯材质制成；
    所述气嘴(7)连通于所述气囊(5)，并且所述气嘴(7)插接且密封固定于所述第一连接口(6)；
    所述弯头(1)包括第一端和第二端，所述第一端连接于所述第二连接口(9)且与所述内衬(3)的内腔连通，所述第二端连通至系统管路。
  2. 根据权利要求1所述的全复合材料气囊式压力罐，其特征在于，所述全复合材料气囊式压力罐还包括连接于所述气囊(5)的固定柱，所述弯头(1)还包括设于所述第一端的固定板(8)，所述固定柱(13)固定插接于所述固定板(8)。
  3. 根据权利要求2所述的全复合材料气囊式压力罐，其特征在于，所述第一端设有卡口，所述固定板(8)与所述卡口卡接。
  4. 根据权利要求2所述的全复合材料气囊式压力罐，其特征在于，所述固定柱(13)和所述气囊(5)一体成型。
  5. 根据权利要求1所述的全复合材料气囊式压力罐，其特征在于，所述第二连接口(9)设置有内螺纹，所述第一端设置有外螺纹，所述第一端与所述第二连接口(9)通过外螺纹和内螺纹螺接；或者，
    所述气嘴(7)和所述气囊(5)一体成型。
  6. 根据权利要求1至5任一项所述的全复合材料气囊式压力罐，其特征在于，所 述第一连接口(6)设置于所述内衬(3)的顶部，所述第二连接口(9)设置于所述内衬(3)的底部，所述外壳的底部设置有支腿(2)，所述外壳固定支撑于所述支腿(2)。
  7. 根据权利要求6所述的全复合材料气囊式压力罐，其特征在于，所述第二连接口(9)具有外沿，所述支腿(2)固定设置有固定套，所述固定套固定套设于所述外沿。
  8. 根据权利要求1至5任一项所述的全复合材料气囊式压力罐，其特征在于，所述第一连接口(6)内设置有密封垫(11)，所述气嘴(7)通过螺栓(12)与所述第一连接口(6)和所述密封垫(11)固定连接。
  9. 根据权利要求1至5任一项所述的全复合材料气囊式压力罐，其特征在于，所述外壳的最大使用压力为1.0Mpa，所述气囊(5)的最大使用压力为0.2Mpa。
  10. 根据权利要求1至5任一项所述的全复合材料气囊式压力罐，其特征在于，所述气囊(5)充气后与所述内衬(3)的内壁的间隔距离为4.5～5.5mm。
  11. 一种如权利要求1至10任一项所述的全复合材料气囊式压力罐的制作方法，其特征在于，包括：首先采用中空吹塑一体成型制作气囊(5)，且气嘴(7)与气囊(5)采用注塑一体成型连接；然后采用中空吹塑一体成型制作具有第一连接口(6)和第二连接口(9)的内衬(3)，并将玻璃纤维(4)缠绕于内衬(3)的外壁，形成外壳；其次将未充气的气囊(5)置于内衬(3)内并固定，气嘴(7)穿过第一连接口(6)并密封固定，弯头(1)与第二连接口(9)固定连通；最后通过气嘴(7)给气囊(5)充压力惰性气体，并将弯头(1)连接至系统管路中。
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