CN112224357B - Installation method of saturated diving pressure cabin - Google Patents
Installation method of saturated diving pressure cabin Download PDFInfo
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- CN112224357B CN112224357B CN202011125689.2A CN202011125689A CN112224357B CN 112224357 B CN112224357 B CN 112224357B CN 202011125689 A CN202011125689 A CN 202011125689A CN 112224357 B CN112224357 B CN 112224357B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
Abstract
The invention provides a method for installing a saturated diving pressure cabin, which belongs to the technical field of equipment installation of diving systems and comprises the following steps: firstly, determining a positioning datum line on a deck, then setting a TUP adjusting tool and a DDC adjusting tool, respectively placing a diving transfer cabin and a diving living cabin on the TUP adjusting tool and the DDC adjusting tool, then setting an accurate positioning line of the diving transfer cabin, and finishing final positioning of the diving transfer cabin through the accurate positioning line; then, finely adjusting the submerged living cabin through a DDC (direct digital control) adjusting tool to enable the distance, the deflection angle and the eccentricity between the second manhole flange and the third manhole flange to be within an allowable range; and finally, machining the sacrificial ring according to the numerical value of the distance and assembling the sacrificial ring between the second manhole flange and the third manhole flange. The method not only solves the problem of installation accuracy of the manhole flange in installation of the saturated diving pressure chamber, but also simplifies the existing installation method, shortens the installation period and has higher practicability.
Description
Technical Field
The invention relates to the technical field of installation of diving system equipment, in particular to a method for installing a saturated diving pressure cabin.
Background
The saturated diving pressure chamber is the core equipment of the saturated diving system, and the saturated diving pressure chamber is generally divided into two types, namely a diving transfer chamber (TUP) and a diving living accommodation (DDC). The diving transfer chamber is a pressure chamber used for transferring a diver to a diving bell or a high-pressure lifeboat, and a wash basin and a tool cabinet are arranged in the diving transfer chamber; the diving living cabin is a pressure cabin for living in the diving operation process of a diver, and a bed, a bathing facility and a toilet are arranged in the diving living cabin. When the saturated diving system operates, the internal gas pressure of the system is adjusted along with the diving working water depth, the pressure range is between 0 and 30bar, and the operation time can be dozens of days. The installation precision of the saturated diving pressure chamber and the air tightness of the connecting position are directly related to the life safety of underwater divers. Therefore, the installation precision of the saturated diving pressure chamber and other related diving equipment is ensured in the installation process, the precision deviation of the position of a flange connected between the diving transfer chamber and the diving living accommodation is also ensured, and the normal use of the system is further ensured.
The existing installation method is to perform positioning installation on a base plane of a foot of a saturated diving pressure chamber, generally, only the levelness of equipment and the thickness of epoxy pouring are ensured, the tightness of a manhole flange at the connection position of the equipment is neglected, and because the equipment has manufacturing precision deviation in the manufacturing process, an upper opening flange surface and a side opening flange surface are not parallel and perpendicular to the base plane, so that the pressure chambers cannot ensure the same clearance at the connection position when being connected, all the pressure chambers are adjusted through a sacrificial ring, the slope of the sacrificial ring is overlarge, and when the sacrificial ring reaches the limit, the adjustment cannot be performed, and the adjustment can only be performed through a scheme of installing the equipment in an inclined mode. After the equipment is installed, leakage phenomenon is caused due to shaking of the ship in the process of offshore high-pressure operation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a saturated diving pressure chamber installation method, which solves the problem of installation accuracy of a manhole flange in saturated diving pressure chamber installation.
The technical scheme of the invention is realized as follows:
the invention provides a method for installing a saturated diving pressure chamber, which comprises the following steps:
s1, determining a positioning reference line for installing a diving transfer cabin and a diving living cabin, and respectively arranging a TUP adjusting tool and a DDC adjusting tool on the deck at the position of the positioning reference line;
s2, placing the diving transfer cabin and the diving living cabin on the TUP adjusting tool and the DDC adjusting tool respectively to finish primary positioning;
s3, setting a precise positioning line of the diving transfer cabin, and completing final positioning of the diving transfer cabin through the precise positioning line;
s4, finely adjusting the diving living accommodation through the DDC adjusting tool to enable the distance, the deflection angle and the eccentricity between the second manhole flange of the diving transfer chamber and the third manhole flange of the diving living accommodation to reach the allowable range;
and S5, processing a sacrificial ring according to the value of the distance in the step S4 and assembling the sacrificial ring between the second manhole flange and the third manhole flange to finish installation.
In step S1, the positioning reference line marking the diving transfer chamber on the deck is a center line T, the positioning reference line marking the diving living accommodation is a center line TWL1, and the diving transfer chamber and the diving living accommodation are respectively hoisted and placed to the positions of the center line T and the center line TWL1 by a crane.
In a preferred embodiment of the present invention, in step S3, a steel wire L0 is provided at a center line of the moon pool, a steel wire L1 is further provided, the steel wire L1 is parallel to the steel wire L0, and the steel wire L0 is the accurate positioning line.
The preferable technical scheme of the invention is that a second center tool, a third center tool and a fourth center tool are respectively arranged on a main deck positioned above the moon pool and a third deck positioned above the moon pool in the moon pool, a center A1 of the second center tool, a center A2 of the third center tool and a center A3 of the fourth center tool are all adjusted on the central line of the moon pool, and the steel wire L0 is arranged to penetrate through the center A1, the center A2 and the center A3 one by one.
The preferable technical scheme of the invention is that S31, a first central tooling is arranged on a first manhole flange right above the diving transfer cabin; s32, enabling the center B1 of the first center tool to be on the steel wire L1 through a TUP horizontal adjusting tool of the TUP adjusting tool, and enabling the midline of the bottom foot of the diving transfer cabin to be parallel to the positioning datum line; s33, adjusting the TUP vertical adjusting tool of the TUP adjusting tool to enable the installation height of the diving transfer cabin to be within the theoretical installation height range.
The preferable technical scheme of the present invention is that a fifth center tooling and a sixth center tooling are respectively disposed on the main deck above the first manhole flange and the third deck above the first manhole flange, and the steel wire L1 is disposed to pass through the center B2 of the fifth center tooling and the center B3 of the sixth center tooling one by one.
The preferable technical scheme of the invention is that in step S4, the submerged living quarters are adjusted by the DDC horizontal adjusting tool of the DDC adjusting tool and the DDC vertical adjusting tool of the DDC adjusting tool, so that the second manhole flange and the third manhole flange are coaxial.
The preferable technical scheme of the present invention is that a plurality of measuring points are uniformly marked on the second manhole flange, measuring auxiliary points corresponding to the plurality of measuring points are provided on the third manhole flange, the third manhole flange is adjusted so that the distance between each measuring point and the measuring auxiliary point is equal, and the value of the distance is taken as the maximum thickness of the sacrificial ring.
The preferable technical scheme of the invention is that the secondary distance, the secondary deflection angle and the secondary eccentric distance between the third manhole flange and the second manhole flange are secondarily corrected by the DDC vertical adjustment tool and the DDC horizontal adjustment tool, and the sacrificial ring is processed according to the numerical value of the secondary distance.
In step S5, in the process of machining the sacrificial ring, an O-ring is fitted into an O-ring groove of the sacrificial ring, the O-ring groove being adapted to the O-ring.
The invention has the beneficial effects that: the method provides a positioning reference of an entity formed by a center tool and a steel wire, and carries out correction and installation by a measuring method. The installation benchmark is optimized, the adjustment of the medium saturation diving pressure cabin is facilitated, and the adjustment can be carried out according to the saturation diving pressure cabins with different sizes. Furthermore, the slope of the sacrificial ring is effectively reduced while the centering precision and the positioning precision of the saturated diving pressure chamber between the second manhole flange and the third manhole flange are ensured, the stability of the positions of the second manhole flange and the third manhole flange is ensured, and the safety guarantee is provided for the operation of the system after the diving pressure chamber is installed. In addition, the method simplifies the existing installation method, shortens the installation period and has higher practicability from the beginning of preparation work to the end of equipment installation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of a method of installing a saturated diving pressure chamber according to an embodiment of the present application;
FIG. 2 is a top view of a method of installing a saturated diving pressure chamber according to an embodiment of the present disclosure;
FIG. 3 is a tooling wiring diagram of a saturated diving pressure chamber installation method according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a reference for a method of installing a saturated diving pressure chamber according to an embodiment of the present application;
fig. 5 is a schematic diagram of a flange connection error of a saturated diving pressure chamber according to an embodiment of the present application.
The reference numerals in the figures are explained below:
1. a diving transfer cabin; 2. a diving living cabin; 3. a first manhole flange; 4. a second manhole flange; 5. a third manhole flange; 6. TUP horizontal adjustment tooling; 7. TUP vertical adjustment tooling; 9. a sacrificial ring.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 to 3 show a specific embodiment of a method for installing a saturated diving pressure chamber, which is provided by the present invention, and the method comprises the following steps:
s1, determining a positioning datum line for installing the diving transfer cabin 1 and the diving living cabin 2 on the deck, and respectively arranging a TUP adjusting tool and a DDC adjusting tool on the deck at the position of the positioning datum line;
s2, placing the diving transfer cabin 1 and the diving living cabin 2 on a TUP adjusting tool and a DDC adjusting tool respectively to complete primary positioning;
s3, setting an accurate positioning line of the diving transfer cabin 1, and finishing final positioning of the diving transfer cabin 1 through the accurate positioning line;
s4, finely adjusting the diving living accommodation 2 through the DDC adjusting tool, so that the distance, the deflection angle and the eccentricity between the second manhole flange 4 of the diving transfer accommodation 1 and the third manhole flange 5 of the diving living accommodation 2 reach the allowable range;
specifically, carry out the adjustment of direction of height to the mounted position of dive transfer cabin 1, through the adjusting bolt of adjusting the TUP vertical adjustment frock, will dive transfer cabin 1 and adjust in the error range of theoretical mounting height, promptly, use the upper mouth flange face that TUP and diving bell connecting pipe are connected as the inspection standard according to upper deck face distance, guarantee that the error range of theoretical mounting height is in 30 mm. The deviation is in the range of 0 DEG to 0 DEG 50'. After the adjustment is finished, the thickness of the TUP epoxy on the foot of the diving transfer chamber 1 is checked, which should be in the range of 20-60 mm. Finally, the diving transfer chamber 1 is temporarily fixed to prevent the diving transfer chamber 1 from moving.
S5, processing the sacrificial ring 9 according to the value of the interval in the step S4 and fitting the sacrificial ring 9 between the second manhole flange 4 and the third manhole flange 5, completing the installation.
As shown in fig. 2, in step S1, the total station is used to mark the positioning reference line of the diving transfer chamber 1 as the center line T and the positioning reference line of the diving living cabin 2 as the center line TWL1 on the deck, and the diving transfer chamber 1 and the diving living cabin 2 are respectively hoisted and placed on the positions of the center line T and the center line TWL1 by the crane.
Specifically, a total station is used for marking a datum line corresponding to a foot installation center line of the diving transfer cabin 1 on a deck as a center line T. The application discloses two dive living accommodation 2, use the total powerstation to mark on the deck that the corresponding datum line of footing installation central line of one of them dive living accommodation 2 is central line TWL1, then the corresponding datum line of footing installation central line of another dive living accommodation 2 is central line TWL 2.
As shown in fig. 3, in step S3, a steel wire L0 is provided at the center line of the moon pool, a steel wire L1 is further provided, the steel wire L1 is parallel to the steel wire L0, and the steel wire L0 is a precise positioning line.
As shown in fig. 3 and 4, a second center tool, a third center tool and a fourth center tool are respectively arranged on a main deck above the moon pool and a third deck above the moon pool inside the moon pool, a center a1 of the second center tool, a center a2 of the third center tool and a center A3 of the fourth center tool are all adjusted to be on a center line of the moon pool, and a steel wire L0 is arranged to penetrate through the center a1, the center a2 and the center A3 one by one, so that the steel wire L0 is coincident with the center line of the moon pool. Specifically, in the present application, a first center tool, a second center tool, a third center tool, a fourth center tool, a fifth center tool, and a sixth center tool are mentioned as a conventional fixture for determining a center position or a center point.
As shown in fig. 3, a first central tooling is installed at S31 on the first manhole flange 3 right above the diving transfer chamber 1; s32, enabling the center B1 of the first center tool to be on a steel wire L1 through a TUP horizontal adjusting tool 6 of the TUP adjusting tool, and enabling the center line of the bottom foot of the diving transfer cabin 1 to be parallel to a positioning datum line; s33, adjusting the TUP vertical adjusting tool 7 of the TUP adjusting tool to enable the installation height of the diving transfer cabin 1 to be within the theoretical installation height range.
Specifically, the installation position of the diving transfer cabin 1 is adjusted in the horizontal direction, and the adjusting bolt on the TUP horizontal adjusting tool 6 is adjusted, so that the center B1 of the first center tool is on the steel wire L1, that is, the central axis of the first manhole flange 3 is coaxial with the steel wire L1, and meanwhile, the bottom foot installation central line of the diving transfer cabin 1 is aligned to the positioning reference line T.
As shown in fig. 3, a fifth center tooling and a sixth center tooling are respectively disposed on the main deck above the first manhole flange 3 and on the third deck above the first manhole flange 3, a steel wire L1 is disposed to pass through the center B2 of the fifth center tooling and the center B3 of the sixth center tooling one by one, and the steel wire L1 is parallel to the steel wire L0. Further, the fifth center tool and the sixth center tool are positioned according to theoretical data and adjusted by using a total station, so that the steel wire L1 is parallel to the steel wire L0, and the steel wire L1 is a central axis theoretically installed on the first manhole flange 3, namely, a positioning reference line of the diving transfer cabin 1. Therefore, the distance between L0 and L1 is controlled according to theoretical data installation of a drawing, and fine adjustment of the installation position of the diving transfer cabin is realized.
As shown in fig. 1 to 3, in step S4, the submerged living quarters 2 is adjusted by the DDC horizontal adjusting tool and the DDC vertical adjusting tool of the DDC adjusting tool, so that the second manhole flange 4 and the third manhole flange 5 are coaxial.
Specifically, the third manhole flange 5 of the diving living room 2 and the second manhole flange 4 of the diving transfer room 1 are aligned as a positioning criterion, and the diving living room 2 is adjusted so that the flange surface of the third manhole flange 5 and the flange surface of the second manhole flange 4 are parallel to each other, and the axis of the second manhole flange 4 is coaxial with the axis of the third manhole flange 5.
Uniformly marking a plurality of measuring points on the second manhole flange 4, arranging measuring auxiliary points corresponding to the plurality of measuring points on the third manhole flange 5, adjusting the third manhole flange 5 to enable the distance between each measuring point and each measuring auxiliary point to be equal, and taking the numerical value of the distance as the maximum thickness of the sacrificial ring 9.
Specifically, a measuring point is marked on the inner side of the second manhole flange 4, the topmost end is recorded as a point 1, the measuring point is marked clockwise, and points are marked at intervals of 90 degrees, namely a point 2, a point 3 and a point 4. The measurement auxiliary point position 11, the point 21, the point 31 and the point 41 of the corresponding position mark of the third manhole flange 5. And adjusting the DDC horizontal adjusting tool and the DDC vertical adjusting tool to ensure that the distance between any measuring point measured by the vernier caliper and the corresponding auxiliary measuring point is constant between the second manhole flange 4 and the third manhole flange 5, namely the distance between the point 1 and the point 11 is equal to the distance between the point 2 and the point 21 is equal to the distance between the point 3 and the point 31 is equal to the distance between the point 4 and the point 41. And the value of the spacing is recorded as the maximum thickness of the sacrificial ring 9 between the second manhole flange 4 and the third manhole flange 5.
Preferably, the first check measurement is performed on each measurement between the third manhole flange 5 and the second manhole flange 4, the secondary distance, the secondary deflection angle and the secondary eccentricity between the third manhole flange 5 and the second manhole flange 4 are secondarily corrected by the DDC vertical adjustment tool and the DDC horizontal adjustment tool, and the sacrificial ring 9 is processed according to the numerical value of the secondary distance.
Specifically, under the condition of ensuring that the butt joint installation height of the second manhole flange 4 is not changed and in accordance with the requirement that the deflection angle between the second manhole flange 4 and the third manhole flange 5 is less than 0.15 degrees, as shown in fig. 5, the thickness of the DDC epoxy is adjusted within the required range through the DDC vertical adjustment tool, and simultaneously is ensured to be equal to or close to the thickness of the TUP epoxy, then, under the condition of ensuring that the distance between the third manhole flange 5 and the second manhole flange 4 is not changed and in accordance with the requirement that the deflection angle between the second manhole flange 4 and the third manhole flange 5 is less than 0.15 degrees, as shown in fig. 5, the center line of the diving living cabin 2 is adjusted to be parallel to the center line TWL1 through the DDC horizontal adjustment tool, and finally, the deflection angle, the distance between the second manhole flange 4 and the third manhole flange 5, and the eccentricity are adjusted and corrected within the required range.
In step S5, in step S5, an O-ring is fitted into an O-ring groove of the sacrificial ring 9, which groove is fitted with the O-ring, during the process of machining the sacrificial ring 9.
Specifically, one surface of the sacrificial ring 9 is a reference surface, and the other surface is provided with a groove of an O-ring. Arranging a test meter around the bottom foot of the diving living cabin 2, recording initial data, properly increasing the distance between the second manhole flange 4 and the third manhole flange 5 through a DDC (direct digital control) horizontal adjustment tool, then installing the sacrificial ring 9 between the second manhole flange 4 and the third manhole flange 5, further cleaning and coating GREASE LYMOKOTE 111SILICON GREAE on the surfaces of the second manhole flange 4, the third manhole flange 5 and the O-shaped ring in the processing of the sacrificial ring 9, and then placing the O-shaped ring into an O-shaped groove. Prior to installation, the bolts were lubricated with copper powder. And then symmetrically installing the bolts, firstly installing the bolts by using 60% torsion, and then symmetrically tightening the bolts to a final torsion value. Further, when the included angle between the second manhole flange 4 and the third manhole flange 5 is greater than 0 ° 36', all bolts need to be installed by using spherical gaskets, and after installation, the gap between the sacrificial ring 9, the second manhole flange 4, and the third manhole flange 5 is less than 0.3 mm. After final assembly, the base of the diving transfer cabin 1 and the base of the diving living cabin 2 are installed with welding stop blocks and epoxy cast.
The installation method of the saturated diving pressure cabin has the beneficial effects that:
the method provides a positioning reference of an entity formed by a center tool and a steel wire, and carries out correction and installation by a measuring method. The installation reference is optimized, the adjustment of the medium-saturation diving pressure cabin is facilitated, and the adjustment can be carried out according to the saturated diving pressure cabins with different sizes. Furthermore, the slope of the sacrificial ring is effectively reduced while the centering precision and the positioning precision of the saturated diving pressure chamber between the second manhole flange and the third manhole flange are ensured, the stability of the positions of the second manhole flange and the third manhole flange is ensured, and the safety guarantee is provided for the operation of the system after the diving pressure chamber is installed. In addition, the method simplifies the existing installation method, shortens the installation period and has higher practicability from the beginning of preparation work to the end of equipment installation.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And any modifications, equivalents, improvements and the like which are obvious and which are made by this disclosure are intended to be included within the scope of the present invention.
Claims (8)
1. A method for installing a saturated diving pressure chamber is characterized by comprising the following steps:
s1, determining a positioning datum line corresponding to the diving transfer cabin (1) and the diving living cabin (2) on a deck, and respectively arranging a TUP adjusting tool and a DDC adjusting tool on the deck at the position of the positioning datum line;
s2, placing the diving transfer cabin (1) and the diving living cabin (2) on the TUP adjusting tool and the DDC adjusting tool respectively to finish primary positioning;
s3, setting a precise positioning line of the diving transfer cabin (1), and finishing the final positioning of the diving transfer cabin (1) through the precise positioning line;
s4, finely adjusting the diving living accommodation (2) through the DDC adjusting tool, so that the distance, the deflection angle and the eccentricity between the second manhole flange (4) of the diving transfer chamber (1) and the third manhole flange (5) of the diving living accommodation (2) reach the allowable range;
s5, machining a sacrificial ring (9) according to the value of the distance in the step S4 and assembling the sacrificial ring (9) between the second manhole flange (4) and the third manhole flange (5) to finish installation;
in the step S1, a total station is used to mark the positioning reference line of the diving transfer cabin (1) on the deck as a center line T, mark the positioning reference line of the diving living cabin (2) as a center line TWL1, and respectively lift and place the diving transfer cabin (1) and the diving living cabin (2) on the positions of the center line T and the center line TWL1 by a crane;
in step S3, a steel wire L0 is provided at a center line of the moon pool, and a steel wire L1 is further provided to make the steel wire L1 parallel to the steel wire L0, and the steel wire L0 is the accurate positioning line.
2. A method of installing a saturated diving pressure chamber as defined in claim 1, wherein:
respectively arranging a second center tool, a third center tool and a fourth center tool on a main deck positioned above the moon pool and a third deck positioned above the moon pool in the moon pool, adjusting the center A1 of the second center tool, the center A2 of the third center tool and the center A3 of the fourth center tool to be on the central line of the moon pool, and arranging the steel wire L0 to penetrate through the center A1, the center A2 and the center A3 one by one.
3. A method of installing a saturated diving pressure chamber as defined in claim 2, wherein:
s31, mounting a first central tool on a first manhole flange (3) right above the diving transfer cabin (1);
s32, enabling the center B1 of the first center tool to be on the steel wire L1 through a TUP horizontal adjusting tool (6) of the TUP adjusting tool, and enabling the center line of the bottom foot of the diving transfer cabin (1) to be parallel to the positioning datum line;
s33, adjusting the TUP vertical adjusting tool (7) of the TUP adjusting tool to enable the installation height of the diving transfer cabin (1) to be within the theoretical installation height range.
4. A method of installing a saturated diving pressure chamber as defined in claim 3, wherein:
and a fifth central tool and a sixth central tool are respectively arranged on the main deck above the first manhole flange (3) and the third deck above the first manhole flange (3), and the steel wire L1 is arranged to penetrate through the center B2 of the fifth central tool and the center B3 of the sixth central tool one by one.
5. A method of installing a saturated diving pressure chamber as defined in claim 1, wherein:
in step S4, through DDC horizontal adjustment frock of frock is adjusted to the DDC with the DDC vertical adjustment frock adjustment of frock is adjusted to the DDC dive living accommodation (2), makes second manhole flange (4) with third manhole flange (5) are coaxial.
6. A method of installing a saturated diving pressure chamber according to claim 5, wherein:
uniformly marking a plurality of measuring points on the second manhole flange (4), arranging measuring auxiliary points corresponding to the measuring points on the third manhole flange (5), adjusting the third manhole flange (5) to enable the distance between each measuring point and the measuring auxiliary point to be equal, and taking the numerical value of the distance as the maximum thickness of the sacrificial ring (9).
7. A method of installing a saturated diving pressure chamber as defined in claim 6, wherein:
through DDC vertical adjustment frock with DDC horizontal adjustment frock secondary correction third manhole flange (5) with secondary interval, secondary declination and secondary eccentricity between second manhole flange (4) to according to the numerical value processing of secondary interval sacrificial ring (9).
8. A method of installing a saturated diving pressure chamber as defined in claim 1, wherein:
in the step S5, in the process of machining the sacrificial ring (9), an O-shaped ring is assembled in an O-shaped groove matched with the O-shaped ring on the sacrificial ring (9).
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