CN111268069B - Barrel-shaped laminated pressure-resistant device for deep sea diving and forming process thereof - Google Patents
Barrel-shaped laminated pressure-resistant device for deep sea diving and forming process thereof Download PDFInfo
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- CN111268069B CN111268069B CN202010128174.1A CN202010128174A CN111268069B CN 111268069 B CN111268069 B CN 111268069B CN 202010128174 A CN202010128174 A CN 202010128174A CN 111268069 B CN111268069 B CN 111268069B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/52—Tools specially adapted for working underwater, not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/049—Deforming bodies having a closed end
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63G—OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
- B63G8/00—Underwater vessels, e.g. submarines; Equipment specially adapted therefor
- B63G8/001—Underwater vessels adapted for special purposes, e.g. unmanned underwater vessels; Equipment specially adapted therefor, e.g. docking stations
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Abstract
The invention belongs to the technical field of deep sea diving devices, and relates to a barrel-shaped laminated pressure-resistant device for deep sea diving and a forming process thereof, wherein the device comprises an upper end cover cap, an upper end connecting cover, an upper end clamping groove cover, a barrel-shaped laminated pressure-resistant shell, a lower end clamping groove cover and a lower end clamping groove cover which are fastened through screws to form a closed barrel-shaped structure in sequence; changing a plurality of single-layer shells into laminated shells by a dieless internal pressure bulging method; the invention adopts the barrel-shaped structure to ensure that the pressure-resistant shell has good bearing capacity, adopts the laminated structure to reduce the design difficulty of materials, adopts a non-mold forming method to reduce the manufacturing cost and improve the pressure-resistant capacity of the shell.
Description
Technical Field
The invention belongs to the technical field of deep sea diving devices, relates to a pressure-resistant device of a deep sea diving device and a forming method, and particularly relates to a barrel-shaped laminated pressure-resistant device for deep sea diving and a forming process thereof.
Background
Ocean engineering equipment is an important support for human development, utilization and ocean protection, and is also an important component of strategic emerging industries and high-end equipment manufacturing industries in China. The submersible is an important device for ocean exploration and deep sea research, and plays a role in lifting the weight. The pressure shell is an important part of the submersible, and can ensure that internal equipment is not damaged and the safety of workers in the diving process of the submersible.
The prior art has the following defects that 1, the traditional pressure-resistant shell is of a single-layer structure, the material design needs to meet the mechanical and use requirements at the same time, the design difficulty is high, the mechanical property of the material is not fully utilized, and the internal stress cannot be effectively released during working, so that the bearing capacity is reduced. 2. The traditional processing method comprises the following steps: and (4) mould pressing forming is carried out, and the outer contour surface is mostly a melon petal or an arc surface. During welding, the welding residual stress is large, penetration welding is not easy, and the forming precision is low. In the process of die forming, the die sinking cost is high, the period is long, the manufacturing difficulty is high, and the surface quality is low. Therefore, the barrel-shaped laminated pressure-resistant shell device which is simple and reliable in structure and convenient to manufacture has important significance for improving the mechanical distribution and the pressure resistance of the shell and reducing the manufacturing cost.
Disclosure of Invention
The invention aims to overcome the problems and the defects in the prior art and provides a barrel-shaped laminated pressure-resistant shell device and a laminated pressure-resistant shell forming method, which have simple structure and convenient manufacture and are suitable for manufacturing laminated pressure-resistant shells.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a deep sea is withstand voltage device with barrel-shaped stromatolite, includes upper end connecting cover, upper end draw-in groove lid, the withstand voltage casing of barrel-shaped stromatolite, lower extreme draw-in groove lid, the through-hole has all been seted up at the center of upper end connecting cover and upper end draw-in groove lid, be equipped with the upper end block on the central through-hole of upper end connecting cover, the lower extreme draw-in groove lid is installed and is covered in the lower extreme draw-in groove, the withstand voltage casing of barrel-shaped stromatolite is located between upper end draw-in groove lid and the lower extreme draw-in groove lid, and the both ends of the withstand voltage casing of barrel-shaped stromatolite are the opening, and its lateral wall is radial a week to the bellied arc structure of periphery, and the withstand voltage casing of barrel-shaped stromatolite contains multilayer casing.
As a further preferable scheme, the barrel-shaped laminated pressure casing is sequentially provided with a first pressure casing, a second pressure casing, a third pressure casing, a fourth pressure casing, a fifth pressure casing, a sixth pressure casing and a seventh pressure casing from outside to inside, and the side walls of the seventh pressure casing are arc structures with a radial periphery protruding to the periphery.
As a further preferable scheme, a circle of main annular groove for mounting the barrel-shaped laminated pressure-resistant shell is formed in each of the upper end clamping groove cover and the lower end clamping groove cover, the groove width of the main annular groove is the same as the wall thickness of the barrel-shaped laminated pressure-resistant shell, three circles of auxiliary annular grooves are further formed in the bottom of the main annular groove, and the three circles of auxiliary annular grooves are concentric circles; the pressure-resistant casing of one deck is located the maximum diameter position in the main ring channel, the pressure-resistant casing of two layers is located attaching the annular groove of outer lane, the pressure-resistant casing of three-layer is located attaching the annular groove of outer lane and attaching the main annular groove between the annular groove of well circle on, the pressure-resistant casing of four layers is located attaching the annular groove of well circle, five layers of pressure-resistant casing are located attaching the annular groove of well circle and attaching the main annular groove between the annular groove of inner circle on, the pressure-resistant casing of six layers is located attaching the annular groove of inner circle, the pressure-resistant casing of seven layers is located the minimum diameter position in the main ring channel.
As a further preferable scheme, the upper surface of the upper end clamping groove cover is provided with three upper end connecting cover oil ways, and the upper end connecting cover is provided with an oil inlet; three circles of annular grooves attached to the upper end clamping groove cover are communicated with oil passages of the upper end connecting cover of the three circles one by one, three circles of annular grooves attached to the lower end clamping groove cover are communicated with a gap between the lower end clamping groove cover and the lower end clamping plate cover, and the lower end clamping plate cover is provided with an oil outlet.
As a further preferable scheme, a sealing ring is arranged between the upper end cover cap and the upper end connecting cover.
As a further preferable scheme, the first pressure-resistant shell, the second pressure-resistant shell, the third pressure-resistant shell, the fourth pressure-resistant shell, the fifth pressure-resistant shell, the sixth pressure-resistant shell and the seventh pressure-resistant shell are made of oxidation-resistant and corrosion-resistant materials.
As a further preferable scheme, the upper end cover cap and the upper end connecting cover and the lower end clamping groove cover and the lower end clamping plate cover are fixedly connected through screws.
A forming process of a barrel-shaped laminated pressure-resistant device for deep sea diving is characterized by comprising the following steps:
the first step is as follows: cutting the plate into rectangular plates, wherein the thickness is t, and the width is H0Length L;
the second step is that: bending and welding, namely rolling a rectangular plate by using a rolling machine to obtain a circle by weldingA column tube having an outer diameter D, a thickness t and a height H0，μ1Is a height coefficient;
the third step: thick plates are welded at two ends, two thick circular plates with the same diameter as the outer diameter of the cylindrical pipe are welded at two ends of the cylindrical pipe through a cold welding method, and a water injection hole P is formed in the center of one thick plate and used for injecting water and pressurizing;
the fourth step: water injection pressurization single-layer forming, connecting the welded cylindrical shell in the step three with a water pump through a water injection pipe at a water injection port P point, continuously injecting water, after the device is fixedly installed, slowly expanding the cylindrical shell under the action of the internal pressure of water, stopping injecting water after reaching a certain pressure value, and finally obtaining a layer of pressure-resistant shell, wherein in the hydraulic pressure expansion process, the original height is changed and is changed by H0Is reduced to H1；
The fifth step: cutting off thick plates at two ends after forming a layer of pressure-resistant shell, smoothly cutting off the thick plates at two ends to ensure that the cut is smooth, and the height after cutting off is mu1H1Thickness t1；
And a sixth step: repeating the first to third steps to obtain the product with an outer diameter of D-2t and a height of H 0The single-layer shell is nested into the step five, and the height is mu1H1A pressure-resistant casing;
the seventh step: and (3) water injection and pressurization double-layer shell forming, connecting the nested cylindrical shell in the step six with a water pump through a water injection pipe at a water injection port P, continuously injecting water, installing and fixing a water injection device, slowly injecting water, pressurizing to a water pressure value lower than the fourth water pressure value, and stopping injecting water to obtain a two-layer pressure-resistant shell, wherein the height of the current expansion shell is mu2H1Thickness t, mu2Also known as height factor. Because the step is different from the water injection pressure in the step five and because the groove depth is different when the shell and the clamping groove are assembled, the diameter is mu2Greater than mu1;
Eighth step: cutting off thick plates at two ends after the inner shell is formed, smoothly cutting off the thick plates at two ends to ensure that the cut is smooth, and keeping the height of the pressure-resistant shell at one layer after cutting off to be mu1H1Thickness t1The height of the two-layer pressure-resistant shell is mu2H1Thickness t2；
The ninth step: repeating the steps to obtain a three-layer pressure-resistant shell, a four-layer pressure-resistant shell, a five-layer pressure-resistant shell, a six-layer pressure-resistant shell and a seven-layer pressure-resistant shell, wherein the corresponding thicknesses are respectively t1、t2、t3、t4、t5、t6、t7Wherein, the height of the pressure-resistant shell of one layer, the pressure-resistant shell of three layers, the pressure-resistant shell of five layers and the pressure-resistant shell of seven layers is mu1H1The height of the two-layer pressure-resistant shell, the four-layer pressure-resistant shell and the six-layer pressure-resistant shell is mu2H1，μ2H1Greater than mu1H1。
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. the barrel-shaped structure is adopted, the curvature of the shell is increased, the lubricant layers can easily slide relatively and the internal stress can be conveniently released, so that the pressure-resistant shell has good bearing capacity.
2. By adopting the laminated structure, different materials can be fully selected from the shells of all layers according to the curvature radius and the use requirement of the shells, the material parameters and the performance are fully utilized, and the design difficulty of the materials is reduced.
3. And a laminated structure is adopted, and the thickness of each layer of shell is thinner, so that the processing and the manufacturing as well as the welding of each layer of shell are convenient.
4. The method adopts a dieless forming method, does not need to separately form a forming die, reduces the manufacturing cost, shortens the period, improves the surface quality and reduces the manufacturing difficulty.
5. By adopting the dieless internal pressure forming, the mechanical distribution of the shell is more uniform, the welding residual stress is effectively released, the initial geometric defect is greatly reduced, the yield strength of the material is greatly improved, and the pressure resistance of the shell is further improved.
Drawings
FIG. 1 is a front sectional view of a barrel-shaped laminated pressure-resistant apparatus of the present invention;
FIG. 2 is a schematic view of the upper end cap structure of the barrel-shaped stacked pressure-resistant apparatus of the present invention;
FIG. 3 is a schematic view showing the structure of an upper end connection cap of the barrel-shaped laminated pressure-resistant device of the present invention;
FIG. 4 is a schematic view of an oil passage of an upper end connection cap of the barrel-shaped laminated pressure-resistant apparatus of the present invention;
FIG. 5 is a schematic view of a lower end cap slot structure of the barrel-shaped stacked pressure-resistant device of the present invention;
FIG. 6 is a schematic view of a lower end cap clamping plate structure of the barrel-shaped laminated pressure-resistant device of the present invention;
FIG. 7 is a flow chart of the present invention;
FIG. 8 is a schematic view of a laminated pressure casing processed to produce a rectangular plate;
FIG. 9 is a schematic view of a single-layer shell bending and welding process for manufacturing a laminated pressure casing;
FIG. 10 is a schematic view of the welding of thick plates at two ends of the laminated pressure shell;
FIG. 11 is a schematic view showing the formation of a water-injected pressurized single-layer casing in the fabrication of a laminated pressure casing;
FIG. 12 is a schematic view of a laminated pressure casing with two end slabs cut away after a single-layer casing is formed;
FIG. 13 is a main sectional view of the laminated pressure casing which is sleeved into the single casing of FIG. 9;
FIG. 14 is a front sectional view of a laminated pressure casing processed with a water injection pressurized double casing;
FIG. 15 is a cut-away front sectional view of thick plates at two ends of a double-layered pressure shell after the double-layered pressure shell is processed and formed;
FIG. 16 is a front cross-sectional view of a laminated pressure housing being machined to form a laminated pressure housing;
in fig. 1 to 16: 1-upper end cover cap, 11-sealing ring, 2-upper end connecting cover, 3-upper end connecting cover oil circuit, 4-upper end clamping groove cover, 5-barrel-shaped laminated pressure shell, 51-one-layer pressure shell, 52-two-layer pressure shell, 53-three-layer pressure shell, 54-four-layer pressure shell, 55-five-layer pressure shell, 56-six-layer pressure shell, 57-seven-layer pressure shell, 6-lower end clamping groove cover and 7-lower end clamping plate cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
As shown in fig. 1, the barrel-shaped pressure-resistant housing device is formed by connecting an upper end cover cap 1, an upper end connecting cap 2, an upper end connecting cap oil circuit 3, an upper end clamping groove cap 4, a barrel-shaped laminated pressure-resistant housing 5, a lower end clamping groove cap 6 and a lower end clamping plate cap 7 from top to bottom in sequence. Wherein, the upper end cover cap 1 and the upper end connecting cover 2 are matched with the connecting cover groove through the cap boss and are connected through a screw. The upper end clamping groove cover 4 is connected below the upper end connecting cover 2 through a screw, the barrel-shaped laminated pressure-resistant shell 5 is nested into clamping grooves of the upper end clamping groove cover 4 and the lower end clamping groove cover 6, and the barrel-shaped laminated pressure-resistant shell 5 is fixed through welding. The lower end chuck cover 7 is connected below the lower end chuck cover 6 by screws. In the process of manufacturing the barrel-shaped pressure-resistant shell, lubricating oil in an external oil pipe enters an oil way of an oil way 3 of the upper end connecting cover through an oil inlet in the upper end connecting cover 2, the lubricating oil flows down from a gap between the shells under the action of gravity through a clamping groove communicated with the oil way, flows to an oil outlet way from a clamping groove in the lower end clamping groove cover 6, and finally is discharged from an oil outlet hole of the lower end clamping plate cover 7.
As shown in fig. 2 and 3, the upper end cap 1 is connected to the upper end connection cap 2 by 8 fastening screws, and the centers of the fastening screws are on the same concentric circle. The sealing ring 11 ensures good sealing performance under working pressure and within a certain temperature range, and can automatically improve the sealing performance along with the increase of the pressure.
As shown in fig. 3 and 4, the upper end connection cover 2 and the upper end card slot cover 4 are connected by 8 fastening screws on the same concentric circle. An oil inlet pipeline is formed by the upper end connecting cover oil way 3 and an oil inlet in the upper end connecting cover 2, so that a lubricant can conveniently enter each layer of shells to slide relatively, and the internal stress can be conveniently released.
As shown in fig. 4 and 5, a clamping groove is formed in the upper end clamping groove cover 4 and the lower end clamping groove cover 6, and the size of the clamping groove is slightly larger than that of the barrel-shaped laminated pressure-resistant casing 5, so that the barrel-shaped laminated pressure-resistant casing 5 can be embedded in a matched manner, and the barrel-shaped laminated pressure-resistant casing 5 is fastened by welding. And lubricating oil flows from the oil inlet channel in the upper end clamping groove cover 4 to the oil outlet channel in the lower end clamping groove cover 6 from top to bottom along the shell layer gap under the action of gravity.
As shown in fig. 5 and 6, the lower end card cover 7 is connected to the lower end card cover 6 through 8 fastening screws located on the same concentric circle, wherein an oil outlet is opened in the lower end card cover 7, so that the lubricating oil can smoothly flow out.
As shown in fig. 16, the barrel-shaped laminated pressure casing 5 includes a first pressure casing 51, a second pressure casing 52, a third pressure casing 53, a fourth pressure casing 54, a fifth pressure casing 55, a sixth pressure casing 56, and a seventh pressure casing 57 from the outermost casing to the innermost casing, and the seven casings are made of different materials and have different thicknesses t1、t2、t3、t4、t5、t6、t7. The seven-layer shell is made of similar materials, and has the advantages of aluminum chloride corrosion resistance, oxide corrosion resistance and reduced heat intensity tendency during welding. The two-layer pressure shell 52, the three-layer pressure shell 53, the four-layer pressure shell 54, the five-layer pressure shell 55, the six-layer pressure shell 56 and the seven-layer pressure shell 57 are made of different materials according to the curvature radius and the use requirement, and the function of each layer of shell material is fully exerted.
The invention provides a method for forming a laminated pressure-resistant shell, which comprises the following steps:
the first step is as follows: cutting of sheet material
Cutting the plate into rectangular plates, wherein the thickness is t, and the width is H0And the length is L.
The second step is that: bend welding
Utilizing a roller machine to roll a rectangular plate to obtain a cylindrical tube through welding, wherein the outer diameter is D, the thickness is t, and the height is H0。
The third step: thick plate welded at two ends
Two thick circular plates with the same diameter as the outer diameter of the cylindrical pipe are welded to the two ends of the cylindrical pipe through a cold welding method, and a water injection hole is formed in the center of one thick plate, so that water injection and pressurization are facilitated.
The fourth step: water injection pressurized single layer forming
And (4) connecting the welded cylindrical shell in the step three with a water pump through a water injection pipe at a point P of a water injection port and continuously injecting water. After the device is fixedly installed, the cylindrical shell slowly expands under the action of the internal pressure of water, and water injection is stopped after a certain pressure value is reached, so that the single-layer shell is obtained. In the process of hydraulic bulging, the original height is changed from H0Reduced to H1。
The fifth step: cutting off thick plates at two ends after the single-layer shell is formed
The thick plates at two ends are cut off smoothly to ensure the cut to be smooth, and the height after cutting off is mu1H1Thickness t1In which μ1Is a height factor.
And a sixth step: repeating the first to third steps and fitting the single-layered shell
Repeating the first to third steps to obtain the product with an outer diameter of D-2t and a height of H 0The single-layer shell is nested into the step five, and the height is mu1H1In the single-layer shell of (a).
The seventh step: water injection pressurized double shell forming
And C, connecting the cylindrical shell nested in the step six with the water pump through a water injection pipe at a point P of a water injection port, continuously injecting water and well installing and fixing a water injection device. And (4) slowly injecting water, and stopping injecting water after the water pressure is increased to a water pressure value different from that in the fourth step to obtain the double-layer shell. Wherein the height of the current swelling shell is mu2H1Thickness t2In which μ2Also known as height factor. Because the step is different from the water injection pressure in the step five and because the groove depth is different when the shell and the clamping groove are assembled, the diameter is mu2Greater than mu1。
Eighth step: cutting off thick plates at two ends after the double-layer shell is formed
The thick plates at two ends are cut off smoothly to ensure the cut is smooth, and the height of the outer shell 51 in the double-layer shell is still mu after the cut1H1Thickness t1The height of the inner shell 52 is mu2H1Thickness t2。
And repeating the first step to the fourth step to obtain three-layer shells, four-layer shells and the like, and finally forming the barrel-shaped laminated pressure-resistant shell. From the outermost shellThe innermost shells are respectively a first-layer pressure-resistant shell 51, a second-layer pressure-resistant shell 52, a third-layer pressure-resistant shell 53, a fourth-layer pressure-resistant shell 54, a fifth-layer pressure-resistant shell 55, a sixth-layer pressure-resistant shell 56 and a seventh-layer pressure-resistant shell 57, and the corresponding thicknesses are respectively t1、t2、t3、t4、t5、t6、t7The thicknesses are different, and the shell material of each layer is also different.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. The utility model provides a deep sea is bucket shape stromatolite pressure resistant device for dive which characterized in that: the barrel-shaped laminated pressure-resistant casing comprises an upper end connecting cover (2), an upper end clamping groove cover (4), a barrel-shaped laminated pressure-resistant casing (5), a lower end clamping groove cover (6) and a lower end clamping plate cover (7), wherein through holes are formed in the centers of the upper end connecting cover (2) and the upper end clamping groove cover (4), an upper end cover cap (1) is arranged on the central through hole of the upper end connecting cover (2), the lower end clamping groove cover (6) is installed on the lower end clamping plate cover (7), the barrel-shaped laminated pressure-resistant casing (5) is positioned between the upper end clamping groove cover (4) and the lower end clamping groove cover (6), two ends of the barrel-shaped laminated pressure-resistant casing (5) are provided with openings, and the side wall of the barrel-shaped laminated pressure-resistant casing is of an arc-shaped structure with a radial periphery protruding outwards; the barrel-shaped laminated pressure-resistant shell (5) comprises a plurality of layers of shells; the barrel-shaped laminated pressure-resistant shell (5) sequentially comprises a first-layer pressure-resistant shell (51), a second-layer pressure-resistant shell (52), a third-layer pressure-resistant shell (53), a fourth-layer pressure-resistant shell (54), a fifth-layer pressure-resistant shell (55), a sixth-layer pressure-resistant shell (56) and a seventh-layer pressure-resistant shell (57) from outside to inside, and the side walls of the seventh-layer shell are all arc-shaped structures protruding from the periphery in the radial direction; the upper end clamping groove cover (4) and the lower end clamping groove cover (6) are both provided with a circle of main annular groove for mounting the barrel-shaped laminated pressure-resistant shell (5), the groove width of the main annular groove is the same as the wall thickness of the barrel-shaped laminated pressure-resistant shell (5), and the barrel-shaped laminated pressure-resistant shell (5) is embedded in the main annular groove.
2. The barrel-shaped laminated pressure-resistant device for deep sea diving as claimed in claim 1, wherein: the bottom of the main annular groove is also provided with three circles of auxiliary annular grooves which are concentric circles; the pressure-resistant casing (51) of one deck is located the main ring inslot maximum diameter position, two layers of pressure-resistant casing (52) are located attaching the annular groove of outer lane, three layers of pressure-resistant casing (53) are located attaching the annular groove of outer lane and attaching the main annular groove between the annular groove of well circle on, four layers of pressure-resistant casing (54) are located attaching the annular groove of well circle, five layers of pressure-resistant casing (55) are located attaching the annular groove of well circle and attaching the main annular groove between the annular groove of inner circle on, six layers of pressure-resistant casing (56) are located attaching the annular groove of inner circle, seven layers of pressure-resistant casing (57) are located the main annular inslot minimum diameter position.
3. The barrel-shaped laminated pressure-resistant device for deep sea diving as claimed in claim 2, wherein: the upper surface of the upper end clamping groove cover (4) is provided with three upper end connecting cover oil ways (3), and the upper end connecting cover (2) is provided with an oil inlet hole; three circles of annular grooves attached to the upper end clamping groove cover (4) are communicated with the oil passages (3) of the upper end connecting cover through one-to-one correspondence, three circles of annular grooves attached to the lower end clamping groove cover (6) are communicated with a gap between the lower end clamping groove cover (6) and the lower end clamping plate cover (7), and oil outlet holes are formed in the lower end clamping plate cover (7).
4. The barrel-shaped laminated pressure-resistant device for deep sea diving as claimed in claim 1 or 3, wherein: and a sealing ring (11) is arranged between the upper end cover cap (1) and the upper end connecting cover (2).
5. The barrel-shaped laminated pressure-resistant device for deep sea diving as claimed in claim 1 or 3, wherein: the first-layer pressure-resistant shell (51), the second-layer pressure-resistant shell (52), the third-layer pressure-resistant shell (53), the fourth-layer pressure-resistant shell (54), the fifth-layer pressure-resistant shell (55), the sixth-layer pressure-resistant shell (56) and the seventh-layer pressure-resistant shell (57) are made of oxidation-resistant and corrosion-resistant materials.
6. The barrel-shaped laminated pressure-resistant device for deep sea diving as claimed in claim 5, wherein: the upper end cover cap (1) and the upper end connecting cover (2) and the lower end clamping groove cover (6) and the lower end clamping plate cover (7) are fixedly connected through screws.
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| CN112307660B (en) * | 2020-10-30 | 2024-08-06 | 江苏科技大学 | Numerical calculation method for model-free bulging of cylindrical shell of submersible |
| CN112307659B (en) * | 2020-10-30 | 2024-06-18 | 江苏科技大学 | Calculation method for ultimate bearing capacity value of double-layer cylindrical pressure-resistant shell |
| CN113511298A (en) * | 2021-05-08 | 2021-10-19 | 中国船舶科学研究中心 | Pressure-resistant structure suitable for deep submergence and floating submergence method thereof |
| US11673636B1 (en) | 2022-01-31 | 2023-06-13 | Composite Energy Technologies, Inc. | Unmanned underwater vehicle having monocoque body |
| CN115870366A (en) * | 2022-10-31 | 2023-03-31 | 江苏恒高电气制造有限公司 | Coaxial forming method for stainless steel multilayer corrugated pipe |
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Application publication date: 20200612 Assignee: Jiangsu University of Science and Technology Technology Transfer Center Co.,Ltd. Assignor: JIANGSU University OF SCIENCE AND TECHNOLOGY Contract record no.: X2022980022975 Denomination of invention: A Barrel Laminated Pressure Resistant Device for Deep Sea Diving and Its Forming Process Granted publication date: 20220415 License type: Common License Record date: 20221128 |
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