CN111319714B - Deep sea laminated spiral pressure-resistant shell device and manufacturing process thereof - Google Patents
Deep sea laminated spiral pressure-resistant shell device and manufacturing process thereof Download PDFInfo
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- CN111319714B CN111319714B CN202010127488.XA CN202010127488A CN111319714B CN 111319714 B CN111319714 B CN 111319714B CN 202010127488 A CN202010127488 A CN 202010127488A CN 111319714 B CN111319714 B CN 111319714B
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- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B3/00—Hulls characterised by their structure or component parts
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Abstract
The invention relates to a deep sea laminated spiral pressure-resistant shell device and a manufacturing process thereof, wherein the pressure-resistant shell device comprises a plurality of body screw layers which are sequentially overlapped and sleeved, the body screw layers are coaxially arranged, namely, the same central line is taken as the central axis, and the diameters of the body screw layers are gradually reduced towards the direction of the central axis; the body screw layer is cylindrical, and the cylindrical column wall is arranged in a wave shape in a concave-convex fluctuation way; respectively arranging spiral reinforcing pipes in cavities formed by adjacent body screw layers, wherein the contact positions of the spiral reinforcing pipes and the adjacent body screw layers are positions where the body screw layers protrude towards the central axis direction; the pressure resistance of the device is improved to a certain extent, and the manufacturing cost is reduced.
Description
Technical Field
The invention relates to a deep sea laminated spiral pressure-resistant shell device and a manufacturing process thereof, belonging to the field of pressure-resistant shells of submersibles.
Background
With continuous research in the shallow sea field, the exploration space for people is less and less, the corresponding exploration on the deep sea is particularly important, and the pressure-resistant shell is used as an important component of the submersible, so that the requirements of divers on underwater life and work and normal operation of equipment can be met.
However, the traditional pressure-resistant shell is limited to a ball, a column, a cone, a ring and a combined structure thereof, the pressure-resistant capacity, the space utilization rate and the hydrodynamic characteristics cannot be optimally coordinated, and the processing and manufacturing are limited to the traditional processes of die forming, bending forming, numerical control turning and the like, so that the cost is high, the period is long, and the quality is poor.
Disclosure of Invention
The invention provides a deep sea laminated spiral pressure-resistant shell device and a manufacturing process thereof, wherein the pressure resistance of the device is improved to a certain extent, and meanwhile, the manufacturing cost is reduced.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a deep sea laminated spiral pressure-resistant shell device comprises a plurality of body spiral layers which are sequentially overlapped and sleeved, wherein the body spiral layers are coaxially arranged, namely, the same central line is used as the central axis, and the diameters of the body spiral layers are gradually reduced towards the direction of the central axis;
the body screw layer is cylindrical, and the cylindrical column wall is arranged in a wave shape in a concave-convex fluctuation way;
respectively arranging spiral reinforcing pipes in cavities formed by adjacent body screw layers, wherein the contact positions of the spiral reinforcing pipes and the adjacent body screw layers are positions where the body screw layers protrude towards the central axis direction;
as a further optimization of the invention, the spiral shell comprises four body spiral layers which are sequentially overlapped and sleeved, namely a first body spiral layer, a second body spiral layer, a third body spiral layer and a fourth body spiral layer, wherein a first spiral reinforcing pipe is arranged between the first body spiral layer and the second body spiral layer, a second spiral reinforcing pipe is arranged between the second body spiral layer and the third body spiral layer, and a third spiral reinforcing pipe is arranged between the third body spiral layer and the fourth body spiral layer, wherein the contact positions of the first spiral reinforcing pipe and the first body spiral layer as well as the second body spiral layer are fixed by welding, the contact positions of the second spiral reinforcing pipe and the second body spiral layer as well as the third body spiral layer are fixed by welding, and the contact positions of the third spiral reinforcing pipe and the third body spiral layer as well as the fourth body spiral layer are fixed by welding;
as a further preferable aspect of the present invention, the pitches of the first helical reinforcement pipe, the second helical reinforcement pipe, and the third helical reinforcement pipe are the same, the arc height of the first bulk thread layer is less than or equal to 0.5 times the pitch, the arc height of the second bulk thread layer is less than or equal to 0.5 times the pitch, the arc height of the third bulk thread layer is less than or equal to 0.5 times the pitch, and the arc height of the fourth bulk thread layer is less than or equal to 0.5 times the pitch;
as a further preferable aspect of the present invention, the thickness of the second bulk thread layer is greater than or equal to 1.1 times the thickness of the first bulk thread layer, the thickness of the third bulk thread layer is greater than or equal to 1.1 times the thickness of the second bulk thread layer, and the thickness of the fourth bulk thread layer is greater than or equal to 1.1 times the thickness of the third bulk thread layer;
the section radius of the second spiral reinforced pipe is more than or equal to 1.1 times of the section radius of the first spiral reinforced pipe, and the section radius of the third spiral reinforced pipe is more than or equal to 1.1 times of the section radius of the second spiral reinforced pipe;
as a further preferred aspect of the present invention, the radius of the first helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the first helical reinforcing tube, the radius of the second helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the second helical reinforcing tube, and the radius of the third helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the third helical reinforcing tube;
a manufacturing process of a deep sea laminated spiral pressure-resistant shell device comprises the following steps:
the first step is as follows: assembling a first integral spiral layer, placing a first spiral reinforcing pipe in the first integral spiral layer and tightly attaching the first spiral reinforcing pipe to the inner wall of the first integral spiral layer, wherein the first integral spiral layer is of a cylindrical structure, the contact part of the first spiral reinforcing pipe and the first integral spiral layer is fixed by welding, and a welding seam is formed between the first spiral reinforcing pipe and the first integral spiral layer and is close to the welding part;
the second step is that: forming a first integral spiral layer by internal pressure, applying internal pressure inside the cylindrical first integral spiral layer, gradually expanding the cylindrical structure, and forming a wavy shape by the concave-convex part on the column wall of the cylindrical structure;
the third step: assembling a second snail layer, sleeving the second snail layer in the first snail layer, and coaxially arranging the second snail layer and the first snail layer, wherein the second snail layer is of a cylindrical structure;
the fourth step: forming a second body screw layer by internal pressure, applying internal pressure in the cylindrical second body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have concave-convex parts, finally forming a wavy shape, wrapping the spiral part of the first spiral reinforcing pipe, fixing the contact part of the first spiral reinforcing pipe and the second body screw layer by welding, and forming a welding seam at the position, close to the welding part, of the first spiral reinforcing pipe and the second body screw layer;
the fifth step: welding a second spiral reinforcing pipe, placing the second spiral reinforcing pipe inside a second body screw layer, wherein the contact position of the second body screw layer and the second spiral reinforcing pipe is a protruding position of the second body screw layer towards the central axis direction, the contact position of the second spiral reinforcing pipe and the second body screw layer is fixed through welding, and a welding seam is formed at the position, close to the welding position, of the second body screw layer, of the second spiral reinforcing pipe;
and a sixth step: assembling a third snail layer, sleeving the third snail layer in the second snail layer, wherein the third snail layer, the first snail layer and the second snail layer are coaxially arranged;
the seventh step: forming a third body screw layer by internal pressure, applying internal pressure in the cylindrical third body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have concave-convex parts, finally forming a wave shape, wrapping the spiral part of the second spiral reinforcing pipe, fixing the contact part of the second spiral reinforcing pipe and the third body screw layer by welding, and enabling the second spiral reinforcing pipe and the third body screw layer to be close to the welding part to form a welding line;
eighth step: welding a third spiral reinforcing pipe, placing the third spiral reinforcing pipe in a third body screw layer, wherein the contact position of the third spiral reinforcing pipe and the third body screw layer is a position where the third body screw layer protrudes towards the central axis direction, the contact position of the third spiral reinforcing pipe and the third body screw layer is fixed by welding, and a welding seam is formed at the position, close to the welding position, of the third spiral reinforcing pipe and the third body screw layer;
the ninth step: assembling a fourth body screw layer, sleeving the fourth body screw layer in the third body screw layer, wherein the fourth body screw layer is coaxially arranged with the first body screw layer, the second body screw layer and the third body screw layer;
the tenth step: forming a fourth body screw layer by internal pressure, applying internal pressure in the cylindrical fourth body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have a concave-convex part, finally forming a wave shape, wrapping the spiral part of a third spiral reinforcing pipe, fixing the contact part of the third spiral reinforcing pipe and the fourth body screw layer by welding, and enabling the third spiral reinforcing pipe and the fourth body screw layer to be close to the welding part to form a welding line;
the eleventh step: injecting liquid filler into the spiral layer and the spiral reinforcing pipe, and standing until the liquid filler is solidified;
as a further preferable aspect of the present invention, the pitches of the first helical reinforcing tube, the second helical reinforcing tube, and the third helical reinforcing tube are the same, the arc height formed after the first bulk thread layer is expanded is less than or equal to 0.5 times the pitch, the arc height formed after the second bulk thread layer is expanded is less than or equal to 0.5 times the pitch, the arc height formed after the third bulk thread layer is expanded is less than or equal to 0.5 times the pitch, and the arc height of the fourth bulk thread layer is less than or equal to 0.5 times the pitch;
as a further preferable aspect of the present invention, the thickness of the second bulk thread layer is greater than or equal to 1.1 times the thickness of the first bulk thread layer, the thickness of the third bulk thread layer is greater than or equal to 1.1 times the thickness of the second bulk thread layer, and the thickness of the fourth bulk thread layer is greater than or equal to 1.1 times the thickness of the third bulk thread layer;
the section radius of the second spiral reinforced pipe is more than or equal to 1.1 times of the section radius of the first spiral reinforced pipe, and the section radius of the third spiral reinforced pipe is more than or equal to 1.1 times of the section radius of the second spiral reinforced pipe;
as a further preferred aspect of the present invention, the radius of the first helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the first helical reinforcing tube, the radius of the second helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the second helical reinforcing tube, and the radius of the third helical reinforcing tube is greater than or equal to 10 times the cross-sectional radius of the third helical reinforcing tube;
in a further preferred embodiment of the present invention, the first, second, third and fourth carcass layers have a bulging rate of more than 1MP/min and a pressure holding time of more than 15min per 1MPa increase in internal pressure during bulging.
Through the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. compared with a common cylindrical shell, the body spiral layer of the spiral pressure-resistant shell device has larger local curvature, so that the pressure resistance of the shell is improved;
2. according to the invention, the liquid filler is injected into the structure, the thickness of the spiral ring is increased by the wavy package of the spiral layer, and the spiral reinforcing pipe is adopted for reinforcement, so that the pressure resistance of the spiral ring is further improved;
3. the spiral pressure-resistant shell device still keeps a cylindrical topological space, and has good space utilization rate and hydrodynamic characteristics; the invention adopts a non-mold forming method, does not need to be separately arranged into a mold, reduces the manufacturing cost, shortens the period and improves the surface quality.
4. The invention adopts the manufacturing process of dieless internal pressure forming and more uniform shell mechanical property distribution, greatly reduces the initial geometric defects, improves the material yield strength and further improves the pressure resistance.
5. Compared with a single-layer spiral pressure-resistant shell, the laminated spiral pressure-resistant shell has higher space utilization rate.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a radial cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is a flow chart of a manufacturing process of a preferred embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a manufacturing process of a preferred embodiment of the present invention after a first step;
FIG. 4 is a schematic structural diagram of a manufacturing process of a preferred embodiment of the present invention after a second step;
FIG. 5 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the third step;
FIG. 6 is a schematic structural diagram of the manufacturing process of the preferred embodiment of the present invention after the fourth step;
FIG. 7 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the fifth step;
FIG. 8 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the sixth step;
FIG. 9 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the seventh step;
FIG. 10 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the eighth step;
FIG. 11 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the ninth step;
FIG. 12 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the tenth step;
fig. 13 is a schematic structural view of the manufacturing process of the preferred embodiment of the present invention after the eleventh step.
In the figure: 1 is first body spiral layer, 2 is second body spiral layer, 3 is third body spiral layer, 4 is fourth body spiral layer, 5 is first heliciform reinforced pipe, 6 is second heliciform reinforced pipe, 7 is third heliciform reinforced pipe, 8 is the welding seam, 9 is liquid filler, 10 is the first body spiral layer of non-bulging, 11 is the second body spiral layer of non-bulging, 12 is the third body spiral layer of non-bulging, 13 is the fourth body spiral layer of non-bulging.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The pressure-resistant shell used on the submersible in the traditional field is generally limited to be spherical, columnar or annular and the respective combination of the spherical, columnar or annular pressure-resistant shell and the respective combination, but the structures cannot obtain the optimal pressure-resistant capacity, and compared with other defects, a novel pressure-resistant shell with the optimal coordinated pressure-resistant capacity on the premise of reducing the manufacturing cost and the space utilization rate is urgently needed.
Therefore, after a plurality of research experiments, the structure is found to obtain better improvement in the aspects of pressure resistance, utilization space ratio and the like, and comprises a plurality of body screw layers which are sequentially overlapped and sleeved, wherein the body screw layers are coaxially arranged, namely, the same central line is used as the central axis, and the diameters of the body screw layers are gradually reduced towards the direction of the central axis; the body screw layer is cylindrical, and the cylindrical column wall is arranged in a wave shape in a concave-convex fluctuation way; the wall surface of the body spiral layer is set to be wavy, so that the axial local curvature of the body spiral layer is increased, the local curvature is increased, and the pressure resistance of the shell can be improved finally;
respectively arranging spiral reinforcing pipes in cavities formed by adjacent body screw layers, wherein the contact positions of the spiral reinforcing pipes and the adjacent body screw layers are positions where the body screw layers protrude towards the central axis direction; the setting of heliciform reinforcing pipe for the thickness of spiral ring increases, has further promoted the compressive capacity of casing.
Example 1:
fig. 1 shows a preferred embodiment provided by the present application, in the present embodiment, the present embodiment includes four body screw layers sequentially overlapped and sleeved, which are a first body screw layer 1, a second body screw layer 2, a third body screw layer 3 and a fourth body screw layer 4, diameters of the first body screw layer 1, the second body screw layer 2, the third body screw layer 3 and the fourth body screw layer 4 are gradually reduced toward a central axis direction, and column walls of the first body screw layer 1, the second body screw layer 2, the third body screw layer 3 and the fourth body screw layer 4 are all concave-convex and undulate and are wavy;
as can be seen from the changes of fig. 3-4, the body screw layer is in a cylindrical structure when not expanded, when the body screw layer is subjected to the expansion treatment, the column wall of the body screw layer is bent to form a wave shape, and the degree of axial bending is increased, so that the local curvature is increased, and the pressure resistance of the shell is improved;
a first spiral reinforcing pipe 5 is arranged between the first body screw layer 1 and the second body screw layer 2, a second spiral reinforcing pipe 6 is arranged between the second body screw layer 2 and the third body screw layer 3, and a third spiral reinforcing pipe 7 is arranged between the third body screw layer 3 and the fourth body screw layer 4, wherein the contact part of the first spiral reinforcing pipe 5 and the first body screw layer 1 as well as the second body screw layer 2 is fixed by welding, the contact part of the second spiral reinforcing pipe 6 and the second body screw layer 2 as well as the third body screw layer 3 is fixed by welding, and the contact part of the third spiral reinforcing pipe 7 and the third body screw layer 3 as well as the fourth body screw layer 4 is fixed by welding;
in order to better obtain better pressure resistance, the structures of the body spiral layer and the spiral reinforced pipe are further limited, and a first spiral reinforced pipe 5, a second spiral reinforced pipe 6, a third spiral reinforced pipe and a spiral reinforcing pipe are addedThe pitches of the reinforcing pipes 7 are each defined as δ, and the radius of the cross section of the first helical reinforcing pipe 5 is defined as r in fig. 35The radius of the first helical reinforcing tube 5 is defined as R5The thickness of the first helical reinforcing tube 5 is defined as t5，R5≧10r5As shown in fig. 4, the height of the arc formed after the first body spiral layer 1 is expanded is defined as h1The average radius of the first body layer 1 is R1The average thickness of the first body layer 1 is t1H after bulging1≦ 0.5 δ, defined as h, shown in FIG. 6, for the second volume spiral layer 2 after bulging2The second body layer 2 has an average radius R2The second body layer 2 has an average thickness t2T is greater than the pressure to which the first body screw layer 1 is subjected due to the fact that the second body screw layer 2 is subjected2Should satisfy t2≧1.1t1H after bulging2Satisfy h2≦ 0.5 δ, and as shown in FIG. 7, the radius of the cross-section defining the second helical stiffening tube 6 is defined as r6The radius of the second helical reinforcing tube 6 is defined as R6The thickness of the second helical reinforcing tube 6 is defined as t6，R6Satisfy R6≧10r6，t6≧1.1t5The height of the bulge of the third spiral layer 3 is defined as h as shown in FIG. 93The third layer 3 has an average radius R3The third bulk helicoidal layer 3 has an average thickness t3T is greater than the pressure to which the second body screw layer 2 is subjected by the third body screw layer 33Should satisfy t3≧1.1t2H after bulging3Satisfy h3≦ 0.5 δ, and as shown in fig. 10, the radius of the cross-section defining the third helical stiffening tube 7 is defined as r7The radius of the third helical reinforcing tube 7 is defined as R7The thickness of the third helical reinforcing tube 7 is defined as t7，R7Satisfy R7≧10r7，t7≧1.1t6The arc height of the fourth helical layer 4 after bulging is defined as h, as shown in FIG. 124The average radius of the fourth layer 4 is R4The average thickness of the fourth layer 4 is t4Since the pressure borne by the fourth body screw layer 4 is greater than the pressure borne by the third body screw layer 3, the structure of the fourth body screw layer 4 is simple, and the structure is simple and convenientWith t4Should satisfy t4≧1.1t3H after bulging4Satisfy h40.5 δ ≦ 0.5; meanwhile, delta satisfies delta-3-6 max { r ═ r5，r6，r7To ensure the intensity distribution is uniform, satisfy
Adopt four body spiral layers to superpose the cover in order and establish, compare with the withstand voltage shell of individual layer spiral, can continue to add the heliciform reinforced pipe under the condition that the space allows, not only promoted the utilization ratio in space, body spiral layer has further promoted the compressive capacity of spiral ring to the parcel of heliciform reinforced pipe simultaneously.
Example 2:
as can be seen from the embodiment 1, the present application not only has a great improvement in structure, but also has a unique feature in the manufacturing process, specifically, the manufacturing process of the embodiment 1 is specifically described, fig. 2 is an overall flow chart of the manufacturing process,
the first step is as follows: assembling a first body screw layer 1, placing a first spiral reinforcing pipe 5 in the first body screw layer 1 and tightly attaching to the inner wall of the first body screw layer 1, wherein the first body screw layer 1 is of a cylindrical structure, the contact part of the first spiral reinforcing pipe 5 and the first body screw layer 1 is fixed by welding, spot welding positioning and back seam welding are firstly adopted during welding, and a welding seam 8 shown by 3a is formed at the position, close to the welding part, of the first spiral reinforcing pipe 5 and the first body screw layer 1; fig. 3b shows a schematic view of the structure after the first step of manufacture, 10 in fig. 3 being the unexpanded first body layer 101, which is still in a cylindrical configuration;
the second step is that: forming a first integral spiral layer 1 by internal pressure, wherein fig. 4 is a schematic structural diagram after the second step of manufacturing, internal pressure is applied to the interior of the first integral spiral layer 1 in a cylindrical shape, the cylindrical structure gradually expands, and concave and convex parts appear on the wall of the cylindrical structure, so that the cylindrical structure is finally wavy; the speed of the bulging process is more than 1MP/min, and the pressure is maintained for more than 15min every time the internal pressure of 1MPa is increased so as to avoid the phenomenon of rebound;
the third step: assembling the second snail layer 2The layer 2 is sleeved in the first body screw layer 1, the two are coaxially arranged, and the coaxiality error value is less than 0.8t1To avoid the uneven forming of the second body layer 2, the second body layer 2 is a cylindrical structure; fig. 5 shows the structure after the first step, fig. 5 showing the unexpanded second body 11, which is still in a cylindrical configuration;
the fourth step: forming a second body screw layer 2 by internal pressure, wherein fig. 6 is a structural schematic diagram after the second step of manufacturing, internal pressure is applied to the inside of the cylindrical second body screw layer 2, the cylindrical structure gradually expands, concave-convex parts appear on the column wall of the cylindrical structure, finally the cylindrical structure is wavy, the expanding speed and the pressure maintaining time are the same as those in the second step, the spiral part of the first spiral reinforcing pipe 5 is wrapped, the contact part of the first spiral reinforcing pipe 5 and the second body screw layer 2 is fixed by welding, and a welding seam 8 is formed at the position, close to the welding part, of the first spiral reinforcing pipe 5 and the second body screw layer 2;
the fifth step: welding a second spiral reinforcing pipe 6, wherein 7a in fig. 7 shows that the second spiral reinforcing pipe 6 is placed inside the second body screw layer 2, the contact position of the second body screw layer 2 and the second spiral reinforcing pipe 6 is a protruding position of the second body screw layer 2 towards the central axis direction, the contact position of the second spiral reinforcing pipe 6 and the second body screw layer 2 is fixed through welding, a welding seam 8 is formed at the position, close to the welding position, of the second spiral reinforcing pipe 6 and the second body screw layer 2, 7b is a schematic diagram of the welding seam 8, and the welding mode is the same as that in the first step;
and a sixth step: assembling the third body screw layer 3, as shown in fig. 8, the third body screw layer 3 is sleeved in the second body screw layer 2, the third body screw layer 3 is coaxially arranged with the first body screw layer 1 and the second body screw layer 2, and the coaxiality error value should be less than 0.8t2In fig. 8, 12 is an unexpanded third helical layer, which is still in a cylindrical configuration;
the seventh step: forming a third body screw layer 3 by internal pressure, applying internal pressure inside the cylindrical third body screw layer 3 as shown in fig. 9, gradually expanding the cylindrical structure, forming concave-convex parts on the column wall of the cylindrical structure, and finally forming a wave shape, wherein the expanding speed and the pressure maintaining time are the same as those in the second step, wrapping the spiral part of the second spiral reinforcing pipe 6, the contact part of the second spiral reinforcing pipe 6 and the third body screw layer 3 is fixed by welding, and a welding seam 8 is formed at the position, close to the welding part, of the second spiral reinforcing pipe 6 and the third body screw layer 3;
eighth step: welding a third spiral reinforcing pipe 7, as shown in fig. 10, placing the third spiral reinforcing pipe 7 inside the third body screw layer 3, wherein the contact position of the third spiral reinforcing pipe 7 and the third body screw layer 3 is a position where the third body screw layer 3 protrudes towards the central axis direction, the contact position of the third spiral reinforcing pipe 7 and the third body screw layer 3 is fixed by welding, a welding seam 8 is formed at the position, close to the welding position, of the third spiral reinforcing pipe 7 and the third body screw layer 3, and the welding mode is the same as that in the first step;
the ninth step: assembling a fourth body screw layer 4, as shown in fig. 11, sleeving the fourth body screw layer 4 in the third body screw layer 3, coaxially arranging the fourth body screw layer 4 with the first body screw layer 1, the second body screw layer 2 and the third body screw layer 3, wherein 13 in fig. 11 is an unexpanded fourth body screw layer 13 which is still in a cylindrical structure, and the coaxiality error value should be less than 0.8t3；
The tenth step: forming a fourth spiral layer 4 by internal pressure, applying internal pressure inside the cylindrical fourth spiral layer 4 as shown in fig. 12, gradually expanding the cylindrical structure, forming concave-convex parts on the column wall of the cylindrical structure, and finally forming a wave shape, wherein the expanding speed and the pressure maintaining time are the same as those in the second step, wrapping the spiral part of a third spiral reinforcing pipe 7, the contact part of the third spiral reinforcing pipe 7 and the fourth spiral layer 4 is fixed by welding, and a welding seam 8 is formed at the position, close to the welding part, of the third spiral reinforcing pipe 7 and the fourth spiral layer 4;
the arrangement of the multiple layers of body screw layers reserves cylindrical topological space, the space between two adjacent layers can be utilized, and the body screw layers and the spiral reinforcing pipes can be continuously added under the condition that the internal space allows, so that the space utilization rate is improved;
the eleventh step: as shown in fig. 13, the liquid filler 9 is injected into the spiral layer and the spiral reinforcing tube, and then the spiral reinforcing tube is left standing until the liquid filler 9 is solidified; the liquid filler 9 may be selected from a single resin, and it should be noted that the liquid filler 9 is not injected into the helical reinforcing tube, but is merely placed in the space formed between adjacent helical layers, and is allowed to stand at room temperature for more than 48 hours until the filler is solidified.
The manufacturing process of the embodiment 2 adopts a mode of dieless molding, a die does not need to be independently arranged, only bulging treatment is relied on, the manufacturing cost is reduced, the manufacturing period is shortened, meanwhile, the bulging treatment is formed by internal pressurization, the surface of the structure does not need to be treated, and the surface quality of the whole structure can be improved;
meanwhile, by adopting the mode of the dieless internal pressure molding, the mechanical property distribution of the shell is more uniform, the defects of the initial geometric structure can be greatly reduced, and the yield strength of the opposite material is improved, so that the pressure resistance is improved.
In combination with the above description of embodiment 1 and embodiment 2, the present application can provide a device with good pressure resistance, low manufacturing cost and good mechanical properties of the housing, and a manufacturing method based on the device.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The meaning of "and/or" as used herein is intended to include both the individual components or both.
The term "connected" as used herein may mean either a direct connection between components or an indirect connection between components via other components.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a deep sea stromatolite spiral pressure-resistant shell device which characterized in that: the spiral shell structure comprises a plurality of spiral shell layers which are sequentially overlapped and sleeved, wherein the spiral shell layers are coaxially arranged, namely, the same central line is used as the central axis, and the diameters of the spiral shell layers are gradually reduced towards the direction of the central axis;
the body screw layer is cylindrical, and the cylindrical column wall is arranged in a wave shape in a concave-convex fluctuation way;
respectively arranging spiral reinforcing pipes in cavities formed by adjacent body screw layers, wherein the contact positions of the spiral reinforcing pipes and the adjacent body screw layers are positions where the body screw layers protrude towards the central axis direction;
including four body spiral shell layers of overlapping the cover in order and establishing, be first body spiral shell layer respectively, second body spiral shell layer, third body spiral shell layer and fourth body spiral shell layer, lay first heliciform reinforcing tube between first body spiral shell layer and second body spiral shell layer, lay second heliciform reinforcing tube between second body spiral shell layer and the third body spiral layer, lay third heliciform reinforcing tube between third body spiral layer and the fourth body spiral layer, wherein, first heliciform reinforcing tube and first body spiral layer, second body spiral layer contact department is through welded fastening, second heliciform reinforcing tube and second body spiral layer, third body spiral layer contact department is through welded fastening, third heliciform reinforcing tube and third body spiral layer, fourth body spiral layer contact department is through welded fastening.
2. The deep sea laminated spiral pressure hull assembly of claim 1, wherein: the pitch of the first spiral reinforcing pipe, the pitch of the second spiral reinforcing pipe and the pitch of the third spiral reinforcing pipe are the same, the arc height of the first integral screw layer is less than or equal to 0.5 times of the pitch, the arc height of the second integral screw layer is less than or equal to 0.5 times of the pitch, the arc height of the third integral screw layer is less than or equal to 0.5 times of the pitch, and the arc height of the fourth integral screw layer is less than or equal to 0.5 times of the pitch.
3. The deep sea laminated spiral pressure hull assembly of claim 1, wherein: the thickness of the second body screw layer is more than or equal to 1.1 times of that of the first body screw layer, the thickness of the third body screw layer is more than or equal to 1.1 times of that of the second body screw layer, and the thickness of the fourth body screw layer is more than or equal to 1.1 times of that of the third body screw layer;
the second helical reinforcing tube has a cross-sectional radius greater than or equal to 1.1 times the cross-sectional radius of the first helical reinforcing tube, and the third helical reinforcing tube has a cross-sectional radius greater than or equal to 1.1 times the cross-sectional radius of the second helical reinforcing tube.
4. The deep sea laminated spiral pressure hull assembly of claim 1, wherein: the radius of the first helical reinforced pipe is greater than or equal to 10 times the section radius of the first helical reinforced pipe, the radius of the second helical reinforced pipe is greater than or equal to 10 times the section radius of the second helical reinforced pipe, and the radius of the third helical reinforced pipe is greater than or equal to 10 times the section radius of the third helical reinforced pipe.
5. A manufacturing process of a deep sea laminated spiral pressure-resistant shell device is characterized in that: the method comprises the following steps:
the first step is as follows: assembling a first integral spiral layer, placing a first spiral reinforcing pipe in the first integral spiral layer and tightly attaching the first spiral reinforcing pipe to the inner wall of the first integral spiral layer, wherein the first integral spiral layer is of a cylindrical structure, the contact part of the first spiral reinforcing pipe and the first integral spiral layer is fixed by welding, and a welding seam is formed between the first spiral reinforcing pipe and the first integral spiral layer and is close to the welding part;
the second step is that: forming a first integral spiral layer by internal pressure, applying internal pressure inside the cylindrical first integral spiral layer, gradually expanding the cylindrical structure, and forming a wavy shape by the concave-convex part on the column wall of the cylindrical structure;
the third step: assembling a second snail layer, sleeving the second snail layer in the first snail layer, and coaxially arranging the second snail layer and the first snail layer, wherein the second snail layer is of a cylindrical structure;
the fourth step: forming a second body screw layer by internal pressure, applying internal pressure in the cylindrical second body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have concave-convex parts, finally forming a wavy shape, wrapping the spiral part of the first spiral reinforcing pipe, fixing the contact part of the first spiral reinforcing pipe and the second body screw layer by welding, and forming a welding seam at the position, close to the welding part, of the first spiral reinforcing pipe and the second body screw layer;
the fifth step: welding a second spiral reinforcing pipe, placing the second spiral reinforcing pipe inside a second body screw layer, wherein the contact position of the second body screw layer and the second spiral reinforcing pipe is a protruding position of the second body screw layer towards the central axis direction, the contact position of the second spiral reinforcing pipe and the second body screw layer is fixed through welding, and a welding seam is formed at the position, close to the welding position, of the second body screw layer, of the second spiral reinforcing pipe;
and a sixth step: assembling a third snail layer, sleeving the third snail layer in the second snail layer, wherein the third snail layer, the first snail layer and the second snail layer are coaxially arranged;
the seventh step: forming a third body screw layer by internal pressure, applying internal pressure in the cylindrical third body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have concave-convex parts, finally forming a wave shape, wrapping the spiral part of the second spiral reinforcing pipe, fixing the contact part of the second spiral reinforcing pipe and the third body screw layer by welding, and enabling the second spiral reinforcing pipe and the third body screw layer to be close to the welding part to form a welding line;
eighth step: welding a third spiral reinforcing pipe, placing the third spiral reinforcing pipe in a third body screw layer, wherein the contact position of the third spiral reinforcing pipe and the third body screw layer is a position where the third body screw layer protrudes towards the central axis direction, the contact position of the third spiral reinforcing pipe and the third body screw layer is fixed by welding, and a welding seam is formed at the position, close to the welding position, of the third spiral reinforcing pipe and the third body screw layer;
the ninth step: assembling a fourth body screw layer, sleeving the fourth body screw layer in the third body screw layer, wherein the fourth body screw layer is coaxially arranged with the first body screw layer, the second body screw layer and the third body screw layer;
the tenth step: forming a fourth body screw layer by internal pressure, applying internal pressure in the cylindrical fourth body screw layer, gradually expanding the cylindrical structure, enabling the column wall of the cylindrical structure to have a concave-convex part, finally forming a wave shape, wrapping the spiral part of a third spiral reinforcing pipe, fixing the contact part of the third spiral reinforcing pipe and the fourth body screw layer by welding, and enabling the third spiral reinforcing pipe and the fourth body screw layer to be close to the welding part to form a welding line;
the eleventh step: and injecting the liquid filler into the spiral layer and the spiral reinforcing pipe, and standing until the liquid filler is solidified after the spiral reinforcing pipe is filled with the liquid filler.
6. The process of manufacturing a deep sea laminated spiral pressure hull assembly of claim 5, wherein: the screw pitches of the first spiral reinforcing pipe, the second spiral reinforcing pipe and the third spiral reinforcing pipe are the same, the arc height formed after the first spiral layer is expanded is less than or equal to 0.5 time of screw pitch, the arc height formed after the second spiral layer is expanded is less than or equal to 0.5 time of screw pitch, the arc height formed after the third spiral layer is expanded is less than or equal to 0.5 time of screw pitch, and the arc height of the fourth spiral layer is less than or equal to 0.5 time of screw pitch.
7. The process of manufacturing a deep sea laminated spiral pressure hull assembly of claim 5, wherein: the thickness of the second body screw layer is more than or equal to 1.1 times of that of the first body screw layer, the thickness of the third body screw layer is more than or equal to 1.1 times of that of the second body screw layer, and the thickness of the fourth body screw layer is more than or equal to 1.1 times of that of the third body screw layer;
the second helical reinforcing tube has a cross-sectional radius greater than or equal to 1.1 times the cross-sectional radius of the first helical reinforcing tube, and the third helical reinforcing tube has a cross-sectional radius greater than or equal to 1.1 times the cross-sectional radius of the second helical reinforcing tube.
8. The process of manufacturing a deep sea laminated spiral pressure hull assembly of claim 5, wherein: the radius of the first helical reinforced pipe is greater than or equal to 10 times the section radius of the first helical reinforced pipe, the radius of the second helical reinforced pipe is greater than or equal to 10 times the section radius of the second helical reinforced pipe, and the radius of the third helical reinforced pipe is greater than or equal to 10 times the section radius of the third helical reinforced pipe.
9. The process of manufacturing a deep sea laminated spiral pressure hull assembly of claim 5, wherein: and in the bulging process of the first body screw layer, the second body screw layer, the third body screw layer and the fourth body screw layer, the bulging rate is greater than 1MP/min, and the internal pressure maintaining time of each increase of 1MPa is greater than 15 min.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031415A (en) * | 1962-05-18 | 1966-06-02 | Marcella De Cesaris | Improvements in or relating to structures |
| US3611966A (en) * | 1969-06-04 | 1971-10-12 | Frank Baldwin Hunter | Submersible vehicle with multiple tubular ring hull |
| GB2223716A (en) * | 1988-10-12 | 1990-04-18 | Secr Defence | A submersible body |
| CN104986312A (en) * | 2015-06-30 | 2015-10-21 | 江苏科技大学 | Bionic pressure-resisting device |
| CN107140108A (en) * | 2017-06-19 | 2017-09-08 | 大连海事大学 | A kind of multiple layers of high strength structural member of intelligent pressure regulating |
| CN107709789A (en) * | 2015-05-13 | 2018-02-16 | 通用电气能源能量变换技术有限公司 | Underwater closed sealed closures for device |
| CN108909935A (en) * | 2018-07-18 | 2018-11-30 | 江苏科技大学 | Manned underwater vehicle pressure-resistant apparatus |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2414441B (en) * | 2004-05-28 | 2009-05-13 | Alicia Submarines Llc | Submersible vessel having a pressure hull which includes a tensioned cage arrangement |
| US7707957B1 (en) * | 2007-01-23 | 2010-05-04 | The United States Of America As Represented By The Secretary Of The Navy | Structural support to underwater vessels using shape memory alloys |
-
2020
- 2020-02-28 CN CN202010127488.XA patent/CN111319714B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1031415A (en) * | 1962-05-18 | 1966-06-02 | Marcella De Cesaris | Improvements in or relating to structures |
| US3611966A (en) * | 1969-06-04 | 1971-10-12 | Frank Baldwin Hunter | Submersible vehicle with multiple tubular ring hull |
| GB2223716A (en) * | 1988-10-12 | 1990-04-18 | Secr Defence | A submersible body |
| CN107709789A (en) * | 2015-05-13 | 2018-02-16 | 通用电气能源能量变换技术有限公司 | Underwater closed sealed closures for device |
| CN104986312A (en) * | 2015-06-30 | 2015-10-21 | 江苏科技大学 | Bionic pressure-resisting device |
| CN107140108A (en) * | 2017-06-19 | 2017-09-08 | 大连海事大学 | A kind of multiple layers of high strength structural member of intelligent pressure regulating |
| CN108909935A (en) * | 2018-07-18 | 2018-11-30 | 江苏科技大学 | Manned underwater vehicle pressure-resistant apparatus |
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Application publication date: 20200623 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 deep-sea laminated spiral pressure shell device and its manufacturing process Granted publication date: 20210810 License type: Common License Record date: 20221128 |
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