CN115507293A - Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas - Google Patents

Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas Download PDF

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Publication number
CN115507293A
CN115507293A CN202211335347.2A CN202211335347A CN115507293A CN 115507293 A CN115507293 A CN 115507293A CN 202211335347 A CN202211335347 A CN 202211335347A CN 115507293 A CN115507293 A CN 115507293A
Authority
CN
China
Prior art keywords
rear end
flange
end enclosure
inner tank
sliding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211335347.2A
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Chinese (zh)
Inventor
刘磊
贺军
尹梦琦
祁杨
李照明
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CRRC Xian Co Ltd
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CRRC Xian Co Ltd
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Filing date
Publication date
Application filed by CRRC Xian Co Ltd filed Critical CRRC Xian Co Ltd
Priority to CN202211335347.2A priority Critical patent/CN115507293A/en
Publication of CN115507293A publication Critical patent/CN115507293A/en
Pending legal-status Critical Current

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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
    • F17C3/00—Vessels not under pressure
    • F17C3/02—Vessels not under pressure with provision for thermal insulation
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • 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
    • F17C3/00—Vessels not under pressure
    • 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
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • F17C2203/012—Reinforcing means on or in the wall, e.g. ribs
    • 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
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/014—Suspension means
    • 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
    • F17C2203/03—Thermal insulations
    • 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
    • F17C2203/0626—Multiple walls
    • F17C2203/0629—Two walls
    • 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
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • 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
    • F17C2209/22—Assembling processes
    • 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
    • F17C2209/22—Assembling processes
    • F17C2209/221—Welding
    • 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
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention discloses a combined supporting and connecting piece for an inner tank and an outer tank of refrigerated liquefied gas, which comprises a fixed end connecting unit and a sliding end connecting unit; the fixed end connecting unit is arranged between the inner tank rear end enclosure and the outer tank rear end enclosure and comprises a supporting sleeve, an L-shaped sleeve connecting ring, an inner tank rear end enclosure base plate, a flange-shaped sleeve connecting ring, an outer tank rear end enclosure supporting flange and an outer tank rear end enclosure base plate; the sliding end connecting unit is arranged between the inner tank front end enclosure and the outer tank front end enclosure and comprises an inner tank front end enclosure flange, an inner tank front end enclosure base plate, a sliding pipe supporting ring, a sliding pipe, a sliding flange, a non-metal supporting piece and a supporting cap connecting pipe. The invention adopts the labyrinth fixed end connecting unit made of steel, adopts the nonmetal supporting piece at the sliding end, and has the characteristics of better stress, less heat leakage, simple structure and arrangement, easy construction and the like.

Description

Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas
Technical Field
The invention relates to a combined supporting and connecting piece for an inner tank and an outer tank of refrigerated liquefied gas.
Background
The cryogenic heat insulation container is a container for storing cryogenic liquid, and a structural form of a double-layer tank (namely an inner tank and an outer tank) is adopted to ensure that the medium in the inner tank body has stable performance and is safe to store and transport. At present, the cryogenic heat insulation container becomes one of the industries with the fastest speed increasing and the most promising development of the pressure container industry.
The cryogenic heat-insulating container forms a heat-insulating vacuum cavity between double-layer tanks (inner tank and outer tank), and the inner tank and the outer tank need to be supported and connected. There are several typical cryogenic insulation vessel support connection types available: an epoxy glass fiber reinforced plastic eight-point supporting mode, a sling and stay bar combined supporting mode and the like.
The epoxy glass fiber reinforced plastic eight-point support has a simple structure and is convenient to assemble, but cannot meet the heat leakage requirement for media such as liquid hydrogen, liquid helium and the like; the sling and the stay bar are combined to form a support type, one end of the support type is connected with the sling to form an elastic support, the other end of the support type is connected with the stay bar structure, the support type has high requirements on the strength, rigidity and safety coefficient of a member, the support is inevitably thickened, the support is heavy in weight, the material cost is high, the absolute performance is reduced, the space required by the support is large, and the implementation process difficulty is high.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a combined supporting and connecting piece for inner and outer tanks of refrigerated liquefied gas, which solves the problems of large self weight, low heat insulation performance, large occupied space, high difficulty in implementation process and the like of a supporting piece in the combined supporting and connecting structure for the inner and outer tanks in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a combined supporting and connecting piece for an inner tank and an outer tank of refrigerated liquefied gas comprises a fixed end connecting unit and a sliding end connecting unit;
the fixed end connecting unit is arranged between the inner tank rear end enclosure and the outer tank rear end enclosure and comprises a supporting sleeve, an L-shaped sleeve connecting ring, an inner tank rear end enclosure base plate, a flange-shaped sleeve connecting ring, an outer tank rear end enclosure supporting flange and an outer tank rear end enclosure base plate; the supporting sleeve comprises a plurality of layers of sleeves and a plurality of U-shaped sleeve connecting rings, the plurality of layers of sleeves are sequentially and coaxially sleeved from inside to outside, the front end of the nth layer of sleeves is connected with the front end of the (n + 1) th layer of sleeves through the U-shaped sleeve connecting rings, the rear end of the (n + 1) th layer of sleeves is connected with the rear end of the (n + 2) th layer of sleeves through the U-shaped sleeve connecting rings, and n is an odd number; the rear end of the casing pipe at the innermost layer is connected with a flange-shaped casing pipe connecting ring, and the front end of the casing pipe at the outermost layer is connected with an L-shaped casing pipe connecting ring; the flange-shaped sleeve connecting ring is connected with an outer tank rear end enclosure supporting flange arranged on an outer tank rear end enclosure, and an outer tank rear end enclosure base plate is tightly attached to and fixed on the outer tank rear end enclosure and is connected with the outer tank rear end enclosure supporting flange; the L-shaped sleeve connecting ring is connected with the inner tank rear end enclosure base plate, and the inner tank rear end enclosure base plate is tightly attached and fixed on the inner tank rear end enclosure;
the sliding end connecting unit is arranged between the inner tank front end socket and the outer tank front end socket and comprises an inner tank front end socket flange, an inner tank front end socket base plate, a sliding pipe supporting ring, a sliding pipe, a sliding flange, a non-metal supporting piece and a supporting cap connecting pipe; the flange of the front end enclosure of the inner tank is fixed on the front end enclosure of the inner tank, the liner plate of the front end enclosure of the inner tank is tightly attached to and fixed on the front end enclosure of the inner tank and is connected with the flange of the front end enclosure of the inner tank, the support ring of the sliding tube is coaxially fixed in the flange of the front end enclosure of the inner tank, the support ring of the sliding tube and the sliding flange are both sleeved on the sliding tube, the sliding tube is fixedly connected with the support ring of the sliding tube, the sliding flange is connected with the connection pipe of the support cap through a non-metal support piece, and the connection pipe of the support cap is fixed on the front end enclosure of the outer tank.
The invention also comprises the following technical characteristics:
specifically, the thickness of the multilayer sleeve becomes thinner from inside to outside in sequence.
Specifically, the U-shaped sleeve connecting ring comprises an annular inner wall, an annular outer wall and an annular bottom surface for connecting the annular inner wall and the annular outer wall; the annular inner wall and the annular outer wall are respectively connected with the end parts of the two sleeves, the thickness of the annular inner wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface, and the thickness of the annular outer wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface.
Specifically, the support sleeve is provided with a through hole.
Specifically, the L-shaped sleeve connecting ring is welded with an inner tank rear end socket base plate, and the inner tank rear end socket base plate is welded with an inner tank rear end socket; the flange-shaped sleeve connecting ring is welded with the outer tank rear end enclosure supporting flange, and the outer tank rear end enclosure supporting flange is welded with the outer tank rear end enclosure and the outer tank rear end enclosure base plate; and an outer tank rear end enclosure supporting flange rib plate is welded between the outer tank rear end enclosure base plate and the outer tank rear end enclosure supporting flange.
Specifically, the non-metallic support is perpendicular to the sliding tube.
Specifically, one end of the support cap connecting pipe is provided with a support cap connecting pipe blocking plate, and the other end of the support cap connecting pipe is provided with a connecting cap; one end of the non-metal support is embedded into the support cap connecting pipe, and the other end of the non-metal support is embedded into the sliding flange.
Specifically, the flange of the inner tank front end enclosure is welded with the inner tank front end enclosure and the inner tank front end enclosure base plate; the sliding pipe support ring is welded with the flange of the front end socket of the inner tank; the sliding pipe is welded with the sliding pipe support ring; the support cap and the support cap connecting pipe are welded, and the support cap connecting pipe, the support cap connecting pipe blocking plate and the outer tank front end enclosure are welded.
Compared with the prior art, the invention has the following technical effects:
the invention adopts the labyrinth fixed end connecting unit as the fixed end and the glass fiber reinforced plastic cross-supported sliding end connecting unit as the sliding end, thereby effectively reducing the heat transfer quantity of the tank container, improving the lossless storage time and meeting the transportation requirements of international roads, railways, water ways and intermodal transportation thereof while meeting the strength and rigidity required by the structure.
The labyrinth type fixed end connecting unit is formed by assembling and welding metal parts, two ends of the labyrinth type fixed end connecting unit are respectively welded on the inner tank rear end socket and the outer tank rear end socket, the labyrinth type fixed end connecting unit has good strength and rigidity in all stress directions, and the labyrinth type fixed end connecting unit mainly bears longitudinal, vertical and transverse loads of the inner tank. The sliding end connecting unit is formed by assembling epoxy glass fiber reinforced plastic and metal pieces, has better vertical and transverse stress conditions and mainly bears vertical and transverse loads of the inner tank; the fixed end connecting unit and the sliding end connecting unit respectively act on the center of the inner tank rear end enclosure and the center of the inner tank front end enclosure, and temperature stress generated due to temperature change can be well eliminated.
Drawings
Fig. 1 is a front sectional view of a fixed end connection unit according to the present invention.
Fig. 2 is a front sectional view of the sliding end connection unit of the present invention.
The meaning of the individual reference symbols in the figures is:
1-inner tank rear end sealing; 2-sealing the rear end of the outer tank; 3-inner tank back end plate; 4-L-shaped sleeve connecting rings; 5-a U-shaped sleeve connecting ring; 6-supporting the casing; 7-a fixed end connection unit; 8-outer tank back end plate; 9-supporting flange of the rear end socket of the outer tank; 10-supporting the flange rib plate by the outer tank rear end socket; 11-flange-shaped sleeve connection rings; 12-sealing the front end of the inner tank; 13-front end enclosure of the outer tank; 14-a sliding end connection unit; 15-inner tank front seal head backing plate; 16-inner tank front seal head flange; 17-sliding tube support ring; 18-a sliding tube; 19-a sliding flange; 20-a non-metallic support; 21-a support cap; 22-support cap connection tube; 23-support cap connecting pipe closure plate.
Detailed Description
The following embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following embodiments, and all equivalent changes based on the technical solutions of the present invention are within the protection scope of the present invention.
Example 1:
as shown in fig. 1 to 2, the present embodiment provides a combined supporting and connecting member for internal and external tanks of liquefied gas, which includes a fixed end connecting unit 7 and a sliding end connecting unit 14;
the fixed end connecting unit 7 is arranged between the inner tank rear end enclosure 1 and the outer tank rear end enclosure 2 and comprises a supporting sleeve 6, an L-shaped sleeve connecting ring 4, an inner tank rear end enclosure base plate 3, a flange-shaped sleeve connecting ring 11, an outer tank rear end enclosure supporting flange 9 and an outer tank rear end enclosure base plate 8; the supporting sleeve 6 comprises a plurality of layers of sleeves and a plurality of U-shaped sleeve connecting rings 5, the plurality of layers of sleeves are sequentially and coaxially sleeved from inside to outside, the front end of the nth layer of sleeves is connected with the front end of the (n + 1) th layer of sleeves through the U-shaped sleeve connecting rings 5, the rear end of the (n + 1) th layer of sleeves is connected with the rear end of the (n + 2) th layer of sleeves through the U-shaped sleeve connecting rings 5, and n is an odd number; the rear end of the casing pipe at the innermost layer is connected with a flange-shaped casing pipe connecting ring 11, and the front end of the casing pipe at the outermost layer is connected with an L-shaped casing pipe connecting ring 4; the flange-shaped sleeve connecting ring 11 is connected with an outer tank rear end enclosure supporting flange 9 arranged on the outer tank rear end enclosure 2, and the outer tank rear end enclosure base plate 8 is tightly attached and fixed on the outer tank rear end enclosure 2 and is connected with the outer tank rear end enclosure supporting flange 9; the L-shaped sleeve connecting ring 4 is connected with the inner tank rear end socket base plate 3, and the inner tank rear end socket base plate 3 is tightly attached and fixed on the inner tank rear end socket 1; the connection mode can well improve the stress condition of the inner tank end socket and the outer tank end socket and ensure the safety of the container.
The sliding end connecting unit 14 is arranged between the inner tank front end enclosure 12 and the outer tank front end enclosure 13 and comprises an inner tank front end enclosure flange 16, an inner tank front end enclosure base plate 15, a sliding pipe supporting ring 17, a sliding pipe 18, a sliding flange 19, a non-metal supporting piece 20 and a supporting cap connecting pipe 22; an inner tank front end enclosure flange 16 is fixed on an inner tank front end enclosure 12, an inner tank front end enclosure base plate 15 is tightly attached to and fixed on the inner tank front end enclosure 12 and is connected with the inner tank front end enclosure flange 16, a sliding pipe support ring 17 is coaxially fixed in the inner tank front end enclosure flange 16, the sliding pipe support ring 17 and a sliding flange 19 are both sleeved on a sliding pipe 18, the sliding pipe 18 is fixedly connected with the sliding pipe support ring 17, and the sliding flange 19 can freely slide on the sliding pipe 18; the sliding flange 19 is connected with a support cap connecting pipe 22 through a non-metal support piece 20, and the support cap connecting pipe 22 is fixed on the outer tank front end enclosure 13; the structure utilizes the characteristic of low non-metal heat transfer coefficient to reasonably adjust the shape and specification of the non-metal support piece, and greatly reduces the heat leakage quantity while ensuring the strength.
The thickness of the multi-layer sleeve becomes thinner from inside to outside in sequence, and the cross-sectional areas are approximately the same, so that the labyrinth-shaped support sleeve 6 further reduces heat transfer, and the labyrinth support assembly is well stressed.
The U-shaped sleeve connecting ring 5 comprises an annular inner wall, an annular outer wall and an annular bottom surface for connecting the annular inner wall and the annular outer wall; the annular inner wall and the annular outer wall are respectively connected with the end parts of the two sleeves, the thickness of the annular inner wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface, and the thickness of the annular outer wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface.
The support sleeve 6 is provided with a through hole.
The L-shaped sleeve connecting ring 4 is welded with the inner tank rear end socket base plate 3, and the inner tank rear end socket base plate 3 is welded with the inner tank rear end socket 1; the flange-shaped sleeve connecting ring 11 is welded with the outer tank rear end enclosure supporting flange 9, and the outer tank rear end enclosure supporting flange 9 is welded with the outer tank rear end enclosure 2 and the outer tank rear end enclosure base plate 8; an outer tank rear end enclosure supporting flange rib plate 10 is welded between the outer tank rear end enclosure base plate 8 and the outer tank rear end enclosure supporting flange 9.
The non-metallic support 20 is perpendicular to the sliding tube 18.
One end of the support cap connecting pipe 22 is provided with a support cap connecting pipe blocking plate 23, and the other end is provided with a connecting cap 21; the non-metallic support 20 is embedded at one end in the support cap connection tube 22 and at the other end in the sliding flange 19.
The flange 16 of the inner tank front end enclosure is welded with the inner tank front end enclosure 12 and the inner tank front end enclosure backing plate 15; a sliding pipe support ring 17 is welded with an inner tank front seal head flange 16; the sliding tube 18 is welded with the sliding tube support ring 17; the support cap 21 and the support cap connecting pipe 22 are welded, and the support cap connecting pipe 22, the support cap connecting pipe blocking plate 23 and the outer tank front end enclosure 13 are welded.
The L-shaped sleeve connecting ring 4, the U-shaped sleeve connecting ring 5 and the outer tank rear end enclosure supporting flange 9 are forged pieces; the non-metallic support 20 may be a bar or a pipe; if the pipe fitting is adopted, the through hole is arranged in the thickness direction of the pipe wall of the non-metal support piece; the plurality of non-metallic supporting members 20 may be uniformly distributed or non-uniformly distributed; the nested sliding flange 19 can be a metal forging, and also can be a combined piece with an outer ring as a forging and an inner ring as a non-metal material; the support cap 21 can be a forged piece or a bar, and a through hole is formed in the support cap 21.
The supporting and connecting structure of the invention has the bearing conditions under several typical use working conditions:
1. static load operating mode
Under the working condition of static load, the connecting unit only bears the vertical downward load brought by the weight of the container and the medium, so that the fixed connecting unit and the sliding connecting unit are both subjected to vertical downward vertical force.
2. Inner tank precooling condition
When the inner tank is in a precooling working condition, the fixed connection unit and the sliding connection unit bear a static load working condition, and the inner tank body is subjected to larger displacement change in the axial direction due to the cold shrinkage phenomenon of the inner tank caused by a cryogenic medium, so that the sliding pipe slides on the sliding flange to generate partial sliding friction force.
3. Running condition of turning road surface
Under full jar road surface operating condition of turning, the coupling unit still bears the inertia load that is 1 times acceleration of gravity at least with the vertical horizontal direction (the horizontal of the jar body) of traffic direction perpendicular except bearing the vertical decurrent load that is brought by container itself, medium weight to and because the inner tank medium rocks the inner tank that produces and twists reverse, consequently fixed connection unit, sliding connection unit all receive vertical decurrent vertical force and transverse force, fixed connection unit still bears because of the inner tank medium rocks the moment of torsion that produces.
4. Jolting road surface operation condition
Under the full jar road surface operating mode of jolting, the coupling unit still bears the vertical container weight of itself and the load of 1 inside medium weight of inner tank, and the inertia load that still bears the perpendicular upwards at least for 1 times acceleration of gravity or the perpendicular downward at least for 2 times acceleration of gravity to and because the inner tank medium rocks the inner tank that produces and twists reverse, consequently fixed coupling unit, sliding connection unit all receives vertical downward vertical power and vertical upward vertical power, fixed coupling unit still bears the moment of torsion that produces because of the inner tank medium rocks.
5. Starting and stopping working conditions
Under full jar start-up, the parking operating mode, the coupling unit still bears the direction of operation (jar body is vertical) impact load except bearing the load of vertical container self weight and 1 inside medium weight of inner tank to and because the inner tank medium rocks the inner tank that produces and twists reverse, consequently fixed connection unit, sliding connection unit all receive perpendicular decurrent vertical power, and fixed connection unit still bears vertical power and rocks the moment of torsion that produces because of the inner tank medium.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications all fall within the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims (8)

1. A combined supporting and connecting piece for an inner tank and an outer tank of refrigerated liquefied gas is characterized by comprising a fixed end connecting unit and a sliding end connecting unit;
the fixed end connecting unit is arranged between the inner tank rear end enclosure and the outer tank rear end enclosure and comprises a supporting sleeve, an L-shaped sleeve connecting ring, an inner tank rear end enclosure base plate, a flange-shaped sleeve connecting ring, an outer tank rear end enclosure supporting flange and an outer tank rear end enclosure base plate; the supporting sleeve comprises a plurality of layers of sleeves and a plurality of U-shaped sleeve connecting rings, the plurality of layers of sleeves are sequentially and coaxially sleeved from inside to outside, the front end of the nth layer of sleeves is connected with the front end of the (n + 1) th layer of sleeves through the U-shaped sleeve connecting rings, the rear end of the (n + 1) th layer of sleeves is connected with the rear end of the (n + 2) th layer of sleeves through the U-shaped sleeve connecting rings, and n is an odd number; the rear end of the casing pipe at the innermost layer is connected with a flange-shaped casing pipe connecting ring, and the front end of the casing pipe at the outermost layer is connected with an L-shaped casing pipe connecting ring; the flange-shaped sleeve connecting ring is connected with an outer tank rear end enclosure supporting flange arranged on an outer tank rear end enclosure, and an outer tank rear end enclosure base plate is tightly attached to and fixed on the outer tank rear end enclosure and is connected with the outer tank rear end enclosure supporting flange; the L-shaped sleeve connecting ring is connected with the inner tank rear end socket base plate, and the inner tank rear end socket base plate is tightly attached and fixed on the inner tank rear end socket;
the sliding end connecting unit is arranged between the inner tank front end socket and the outer tank front end socket and comprises an inner tank front end socket flange, an inner tank front end socket base plate, a sliding pipe supporting ring, a sliding pipe, a sliding flange, a non-metal supporting piece and a supporting cap connecting pipe; the flange of the front end enclosure of the inner tank is fixed on the front end enclosure of the inner tank, the liner plate of the front end enclosure of the inner tank is tightly attached to and fixed on the front end enclosure of the inner tank and is connected with the flange of the front end enclosure of the inner tank, the support ring of the sliding tube is coaxially fixed in the flange of the front end enclosure of the inner tank, the support ring of the sliding tube and the sliding flange are both sleeved on the sliding tube, the sliding tube is fixedly connected with the support ring of the sliding tube, the sliding flange is connected with the connection pipe of the support cap through a non-metal support piece, and the connection pipe of the support cap is fixed on the front end enclosure of the outer tank.
2. The combined support connector for internal and external tanks of refrigerated liquefied gas according to claim 1, wherein the thickness of the multi-layer sleeve is thinner from inside to outside.
3. The combined support connector for both internal and external tanks of chilled liquefied gas according to claim 1, wherein said U-shaped casing connection ring comprises an annular inner wall, an annular outer wall and an annular bottom surface connecting the two; the annular inner wall and the annular outer wall are respectively connected with the end parts of the two sleeves, the thickness of the annular inner wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface, and the thickness of the annular outer wall is gradually thickened from the joint of the annular inner wall and the sleeves to the annular bottom surface.
4. The combined support connector for internal and external tanks of refrigerated liquefied gas as claimed in claim 1, wherein the support sleeve is provided with through holes.
5. The liquefied gas freezing inner and outer tank combined type supporting and connecting member as claimed in claim 1, wherein the L-shaped sleeve connecting ring is welded to an inner tank rear head liner plate, and the inner tank rear head liner plate is welded to an inner tank rear head; the flange-shaped sleeve connecting ring is welded with the outer tank rear end enclosure supporting flange, and the outer tank rear end enclosure supporting flange is welded with the outer tank rear end enclosure and the outer tank rear end enclosure base plate; and an outer tank rear end enclosure supporting flange rib plate is welded between the outer tank rear end enclosure base plate and the outer tank rear end enclosure supporting flange.
6. The combined support coupling for internal and external tanks of chilled liquefied gas according to claim 1, wherein said non-metallic support members are perpendicular to the sliding tube.
7. The combined support coupler for internal and external tanks of refrigerated liquefied gas according to claim 1, wherein the support cap connecting pipe is provided with a support cap connecting pipe blocking plate at one end and a connecting cap at the other end; one end of the non-metal support piece is embedded into the support cap connecting pipe, and the other end of the non-metal support piece is embedded into the sliding flange.
8. The internal and external tank combined support connector for refrigerated liquefied gas according to claim 1, wherein the flange of the front head of the internal tank is welded to both the front head of the internal tank and the liner plate of the front head of the internal tank; the sliding pipe support ring is welded with the flange of the front end socket of the inner tank; the sliding pipe is welded with the sliding pipe support ring; the support cap and the support cap connecting pipe are welded, and the support cap connecting pipe, the support cap connecting pipe blocking plate and the outer tank front end enclosure are welded.
CN202211335347.2A 2022-10-28 2022-10-28 Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas Pending CN115507293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211335347.2A CN115507293A (en) 2022-10-28 2022-10-28 Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211335347.2A CN115507293A (en) 2022-10-28 2022-10-28 Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas

Publications (1)

Publication Number Publication Date
CN115507293A true CN115507293A (en) 2022-12-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211335347.2A Pending CN115507293A (en) 2022-10-28 2022-10-28 Combined supporting and connecting piece for inner tank and outer tank of frozen liquefied gas

Country Status (1)

Country Link
CN (1) CN115507293A (en)

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