CN105445050B - A kind of caisson type underwater separator hyperbaric chamber experimental rig and its manufacture method - Google Patents
A kind of caisson type underwater separator hyperbaric chamber experimental rig and its manufacture method Download PDFInfo
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- CN105445050B CN105445050B CN201510952106.6A CN201510952106A CN105445050B CN 105445050 B CN105445050 B CN 105445050B CN 201510952106 A CN201510952106 A CN 201510952106A CN 105445050 B CN105445050 B CN 105445050B
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of caisson type underwater separator hyperbaric chamber experimental rig and its manufacture method,Including top caisson and bottom caisson,Feature is also to include the hyperbaric chamber nacelle in experiment deep-well located underground,The hyperbaric chamber joint for sealing connecting resting on the ground,Hyperbaric chamber nacelle is connected with hyperbaric chamber joint for sealing connecting by hyperbaric chamber nacelle top flange,The outer wall of top caisson is arranged with hyperbaric chamber joint for sealing connecting,Hyperbaric chamber joint for sealing connecting passes through welded connection with bottom caisson,Hyperbaric chamber joint for sealing connecting is connected with hyperbaric chamber nacelle top flange by bolt seal,Hyperbaric chamber nacelle top flange is connected with hyperbaric chamber nacelle by welded seal,Bottom caisson is disposed longitudinally in hyperbaric chamber nacelle,The top of hyperbaric chamber nacelle is respectively arranged with pressure gauge connection and water filling pressurization interface,Manufacture method includes processing parameter setting,Modeling and analysis and layout design,Welding or forging completion,Advantage is that adaptability is good；Sealing structure is good, safe and reliable.
Description
Technical field
The present invention relates to a kind of caisson type underwater separator hyperbaric chamber experimental rig and its manufacture method.
Background technology
" the underwater compact separator key technology of 2000 meters of depth of waters and model machine " is National 863 major project " deep water hydrocarbon
One of problem of resources exploration technology and equipment ".Affiliated overall project objectives are：Focus development deep water hydrocarbon resource exploration
Development technique and equipment, solve to restrict China's deep-sea oil gas exploration and development technology and equipment bottleneck sex chromosome mosaicism, grasp possesses
Deepwater petroleum exploration having China's characteristic, possessing independent intellectual property right develops core technology, develops a collection of Grand Equipments, breaks
Foreign technology monopolizes, and realizes China's deepwater petroleum exploration development technique great-leap-forward development.According to above overall goal, Ningbo prestige is auspicious
The problem task that Tai Mosai multiphase flow experimental instruments and equipment limiteds undertake is：Exploitation manufacture is a set of, and to be applied to 2000 meters of deep-seas underwater
Caisson type underwater separator hyperbaric chamber experimental rig.
In the exploitation of deep water subsea fields, standpipe can produce very big back pressure, can be serious if not eliminating this back pressure
Influence oily well yield；It is not only able to significantly improve oil well output so designing good underwater separator device, additionally it is possible to rise
To the effect of flow assurance.Underwater separator caisson is made up of separator and caisson, due to the environmental quality of high underwater interior external pressure
And physical dimension limitation, it is desirable to carry out hyperbaric chamber (external pressure) experiment respectively to separator caisson top and caisson bottom respectively,
Caisson aerial part is high about 6 meters, and under ground portion is high about 46 meters, at present, there is not yet meet that above-mentioned underwater separator sinks both at home and abroad
The hyperbaric chamber experimental rig of case external pressure test requirement.
The content of the invention
The technical problems to be solved by the invention be to provide it is a kind of simple in construction, it is durable in use, without maintenance；Structure is tight
Gather, floor space is small, quickly realizes that caisson hyperbaric chamber is tested；Adaptability is good；Good, the safe and reliable caisson type water of sealing structure
Lower separator high pressure cabin experimental rig and its manufacture method.
Technical scheme is used by the present invention solves above-mentioned technical problem：A kind of caisson type underwater separator hyperbaric chamber examination
Experiment device, including top caisson and bottom caisson, in addition to it is located underground experiment deep-well in hyperbaric chamber nacelle, rest on the ground
Hyperbaric chamber joint for sealing connecting and the hyperbaric chamber nacelle top flange that rest on the ground, described hyperbaric chamber nacelle with it is described
Hyperbaric chamber joint for sealing connecting is connected by described hyperbaric chamber nacelle top flange, and the outer wall of described top caisson is arranged
The hyperbaric chamber joint for sealing connecting stated, the top of described hyperbaric chamber joint for sealing connecting in the middle part of described top caisson with passing through weldering
Integrally connected is connect, the bottom of described hyperbaric chamber joint for sealing connecting and the upper end of described bottom caisson pass through welded company
Connect, the lower end surface of described hyperbaric chamber joint for sealing connecting is connected with described hyperbaric chamber nacelle top flange by bolt seal
Connect, described hyperbaric chamber nacelle top flange is connected with described hyperbaric chamber nacelle by welded seal, described bottom caisson
It is disposed longitudinally in described hyperbaric chamber nacelle, the top of described hyperbaric chamber nacelle is respectively arranged with pressure gauge connection and water filling
Pressurize interface.
Described hyperbaric chamber nacelle is hollow cylindrical and its bottom is circular arc end socket.
Described hyperbaric chamber joint for sealing connecting includes upper hollow round platform part and lower hollow cylindrical member, and described is upper
Portion's hollow round table part and the described coaxial integrally connected of lower hollow cylindrical member, the bottom of described upper hollow round platform part
Portion's area is less than the base area of described lower hollow cylindrical member, and the fringe region of described lower hollow cylindrical member leads to
Described bolt is crossed to be connected with described hyperbaric chamber nacelle top flange.
The lower end surface of described hyperbaric chamber joint for sealing connecting and the upper end end face of described hyperbaric chamber nacelle top flange
Between be provided with metallic packing ring.
Described bolt is high-strength stud, and described bolt is provided at both ends with nut.
The manufacture method of above-mentioned caisson type underwater separator hyperbaric chamber experimental rig, is comprised the following steps that：
(1) experimental rig processing parameter setting
A. according to caisson size design head, temperature parameter, calculate and determine hyperbaric chamber nacelle interior diameter size, material board
Number, strength grade, and the wall thickness of preset high-pressure cabin nacelle；
B. the height of hyperbaric chamber nacelle is determined according to the length of bottom caisson；
C. the knot of hyperbaric chamber nacelle top flange is designed according to the hyperbaric chamber nacelle interior diameter, wall thickness and material trademark of design
Configuration formula, seal form, thickness and material trademark；
D. according to the structure type of hyperbaric chamber nacelle top flange, the wall thickness of seal form and top caisson, material trademark
Design the structure type, seal form, material trademark of hyperbaric chamber joint for sealing connecting；
(2) modeling and analysis
A. the threedimensional model of the separator high pressure cabin experimental rig designed using 3 d modeling software foundation step (1), so
Threedimensional model is imported in ANSYS finite element analysis softwares afterwards, or the foundation step directly in ANSYS finite element analysis softwares
(1) threedimensional model of the separator high pressure cabin experimental rig of design；
B. cell type selection and setting are carried out in ANSYS finite element analysis softwares, cell type selection is with centre
Node hexahedral element；
C. the setting of material relevant parameter is carried out in ANSYS finite element analysis softwares, the major parameter of setting has high pressure
The modulus of elasticity of the material of cabin nacelle, hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting and the Poisson's ratio of material；
D. FEM meshing is carried out using ANSYS finite element analysis softwares, i.e., according to the size of threedimensional model and asked
The requirement of precision is solved, the setting of sizing grid, after being provided with, threedimensional model are carried out in ANSYS finite element analysis softwares
It is automatic to carry out mesh generation；
E. the hyperbaric chamber nacelle top flange of threedimensional model is connected with hyperbaric chamber sealing using ANSYS finite element analysis softwares
Sealing between joint is analyzed, and analysis process is：Threedimensional model is applied internal pressure and external pressure, had using ANSYS
Statics of Structures module in finite element analysis software carries out stress analysis, calculates the equivalent stress analysis knot for obtaining threedimensional model
Fruit, threedimensional model equivalent stress is evaluated using GB150-1998-analysis design standard, if the hyperbaric chamber of threedimensional model
The plastic deformation of nacelle top flange and hyperbaric chamber joint for sealing connecting is respectively less than or the stress value equal to prescribed by standard, then high pressure
Cabin nacelle top flange and the wall thickness of hyperbaric chamber joint for sealing connecting are the wall thickness under met relevant pressure；If threedimensional model high pressure
The plastic deformation of cabin nacelle top flange then increases method at the top of threedimensional model hyperbaric chamber nacelle more than the stress value of prescribed by standard
Blue wall thickness, or the plastic deformation of hyperbaric chamber joint for sealing connecting then increase three-dimensional mould more than the stress value of prescribed by standard
The wall thickness of type hyperbaric chamber joint for sealing connecting, carries out analysis calculating according to a-d steps again, until the hyperbaric chamber nacelle of threedimensional model
The plastic deformation value of top flange and hyperbaric chamber joint for sealing connecting is respectively less than or the stress value equal to prescribed by standard, that is, has analyzed
Into under the sealing sexual satisfaction relevant pressure between the hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting of threedimensional model
Working condition requirement；
F. the hyperbaric chamber nacelle top flange of threedimensional model is connected with hyperbaric chamber sealing using ANSYS finite element analysis softwares
The intensity of joint is analyzed, and analysis process is：Threedimensional model is applied internal pressure and external pressure, utilize ANSYS finite element fractions
Analyse the Statics of Structures module in software and carry out stress analysis, it is close to hyperbaric chamber nacelle top flange and the hyperbaric chamber of threedimensional model
Carry out linearizing stress sorts processing at envelope connector maximum stress, according to GB150-1998-analysis design standard to three-dimensional
Model carries out strength assessment, if the hyperbaric chamber nacelle top flange and the equivalent stress of hyperbaric chamber joint for sealing connecting of threedimensional model are equal
Less than or equal to the stress value of prescribed by standard, then hyperbaric chamber nacelle top flange and the wall thickness of hyperbaric chamber joint for sealing connecting are institute
Meet the wall thickness under relevant pressure；If the equivalent stress of threedimensional model hyperbaric chamber nacelle top flange is more than answering for prescribed by standard
Force value then increases the wall thickness of threedimensional model hyperbaric chamber nacelle top flange, or the equivalent stress of hyperbaric chamber joint for sealing connecting
Stress value more than prescribed by standard then increases the wall thickness of threedimensional model hyperbaric chamber joint for sealing connecting, enters again according to a-d steps
Row analysis calculates, until the hyperbaric chamber nacelle top flange and the equivalent stress value of hyperbaric chamber joint for sealing connecting of threedimensional model are small
In or equal to prescribed by standard stress value, i.e. analysis completes, and the hyperbaric chamber nacelle top flange and hyperbaric chamber of threedimensional model be close
The intensity for sealing connector is to meet the working condition requirement under relevant pressure；
G. the stability of the hyperbaric chamber nacelle of threedimensional model is analyzed using ANSYS finite element analysis softwares, analyzed
Process is：Threedimensional model is applied internal pressure or external pressure, to entering line at the hyperbaric chamber nacelle maximum stress of threedimensional model
Property stress sorts processing, and according to GB150-1998-analysis design standard to threedimensional model carry out strength assessment, if three-dimensional
The equivalent stress of the hyperbaric chamber nacelle of model is less than or equal to the stress value of prescribed by standard, then the wall thickness of hyperbaric chamber nacelle is institute
Meet the wall thickness under relevant pressure；Increase if the equivalent stress of threedimensional model hyperbaric chamber nacelle is more than the stress value of prescribed by standard
Increase the wall thickness of ballasting nacelle, carry out analysis calculating according to a-d steps again, until the hyperbaric chamber nacelle of threedimensional model is equivalent
Stress value is less than or equal to the stress value of prescribed by standard, i.e. analysis is completed, and the stability of the hyperbaric chamber nacelle of threedimensional model is
Meet the working condition requirement under relevant pressure；
(3) hyperbaric chamber nacelle, hyperbaric chamber nacelle top flange and the height of the threedimensional model obtained according to step (2) analysis
The wall thickness of ballasting joint for sealing connecting and material, complete underwater separator hyperbaric chamber experimental rig overall layout design, pass through
Welding or forging method complete the manufacture of underwater separator hyperbaric chamber experimental rig.
Described hyperbaric chamber nacelle is hollow cylindrical and its bottom is circular arc end socket, described hyperbaric chamber nacelle it is upper
Portion is respectively arranged with pressure gauge connection and water filling pressurization interface；Described hyperbaric chamber joint for sealing connecting includes upper hollow round platform portion
Part and lower hollow cylindrical member, described upper hollow round platform part coaxially integrally connect with described lower hollow cylindrical member
Connect, the bottom area of described upper hollow round platform part is less than the base area of described lower hollow cylindrical member.
The fringe region of described lower hollow cylindrical member passes through described bolt and described hyperbaric chamber nacelle top
Flange connects, the lower end surface of described hyperbaric chamber joint for sealing connecting and the upper end end face of described hyperbaric chamber nacelle top flange
Between be provided with metallic packing ring, described bolt is high-strength stud, and described bolt is provided at both ends with nut.
Compared with prior art, the advantage of the invention is that：Present invention firstly discloses a kind of caisson type underwater separator
Hyperbaric chamber experimental rig and its manufacture method, the device pressurize through water filling, because the special construction of Special seal connector ensures
Internal pressure is normal pressure in caisson in pressure process, and caisson top external pressure is also normal pressure, and the external pressure that caisson bottom is born is high pressure
The internal pressure of cabin nacelle, the numerical value in pressure gauge are the internal pressure value of the main cabin nacelle of high pressure.For underwater in the device fabrication
The external pressure that caisson is born during 2000 meters of depth of water, hyperbaric chamber nacelle, nacelle top method are carried out using finite element analysis software ANSYS
Orchid, the sealing of Special seal connector, intensive analysis and stability analysis, it is (outer successfully to solve caisson under ground portion hyperbaric chamber
Pressure) test problem.Its advantage is as follows：
1st, it is simple in construction.Device is by high pressure nacelle top flange, hyperbaric chamber joint for sealing connecting, top caisson, bottom caisson
Composition.The device easy to manufacture, it is durable in use, without maintenance.
2nd, compact-sized, floor space is small, quickly realizes that caisson hyperbaric chamber is tested.
3rd, adaptability is good.This device nacelle length is 50 meters, 0.5 meter of internal diameter, can be applicable caisson length no more than 50 meters,
The caisson of all different sizes of the external diameter no more than 0.5 meter carries out hyperbaric chamber experiment.
4th, sealing structure is good, safe and reliable.Device high pressure nacelle is in underground, and danger coefficient is small during experiment, than
It is more complete.Sealing structure uses the sealing structure of similar flange, this sealing structure technology maturation, reliability height.
5th, easy to manufacture, cost is low.Its main part is placed in underground, and only hyperbaric chamber nacelle top flange and hyperbaric chamber is close
Envelope connector connection is placed on ground, and easy disassembly, so as to easy to manufacture, cost is low.
Brief description of the drawings
Fig. 1 is the structural representation of caisson type underwater separator hyperbaric chamber experimental rig of the present invention；
Fig. 2 is the grid cell quality examination result figure of specific embodiment two.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Specific embodiment one
A kind of caisson type underwater separator hyperbaric chamber experimental rig, as shown in figure 1, including top caisson 1 and bottom caisson
Hyperbaric chamber nacelle 4, the hyperbaric chamber joint for sealing connecting 5 that rest on the ground and position in 2, in addition to experiment deep-well 3 located underground
In the hyperbaric chamber nacelle top flange 6 on ground, hyperbaric chamber nacelle 4 passes through hyperbaric chamber nacelle top with hyperbaric chamber joint for sealing connecting 5
Portion's flange 6 connects, and the outer wall of top caisson 1 is arranged with hyperbaric chamber joint for sealing connecting 5, the top of hyperbaric chamber joint for sealing connecting 5 with
The middle part of top caisson 1 is passed through by welded connection, the bottom and the upper end of bottom caisson 2 of hyperbaric chamber joint for sealing connecting 5
Welded connection, the lower end surface of hyperbaric chamber joint for sealing connecting 5 is sealed with hyperbaric chamber nacelle top flange 6 by bolt 7 to be connected
Connect, hyperbaric chamber nacelle top flange 6 is connected with hyperbaric chamber nacelle 4 by welded seal, and bottom caisson 2 is disposed longitudinally on hyperbaric chamber
In nacelle 4, the top of hyperbaric chamber nacelle 4 is respectively arranged with pressure gauge connection 8 and water filling pressurization interface 9.
In this particular embodiment, hyperbaric chamber nacelle 4 is hollow cylindrical and its bottom is circular arc end socket.Hyperbaric chamber is close
Envelope connector 5 includes upper hollow round platform part 10 and lower hollow cylindrical member 11,10, upper hollow round platform portion and bottom
11 coaxial integrally connected of hollow cylindrical part, the bottom area of upper hollow round platform part 10 are less than lower hollow cylindrical member 11
Base area, the fringe region of lower hollow cylindrical member 11 is connected by bolt 7 with hyperbaric chamber nacelle top flange 6.It is high
Metallic packing ring is provided between the lower end surface of ballasting joint for sealing connecting 5 and the upper end end face of hyperbaric chamber nacelle top flange 6
12.Bolt 7 is high-strength stud, and bolt 7 is provided at both ends with nut 13.
After caisson type underwater separator caisson hyperbaric chamber experiment new device is by Fig. 1 assemblings, water filling pressurization is carried out, by
Ensure in pressure process in caisson that internal pressure is normal pressure in the special construction of hyperbaric chamber joint for sealing connecting 5, caisson top external pressure
For normal pressure, the external pressure that caisson bottom is born is the internal pressure of hyperbaric chamber nacelle 4, and the numerical value in pressure gauge is the main cabin nacelle of high pressure
4 internal pressure value.
Specific embodiment two
A kind of manufacture method of caisson type underwater separator hyperbaric chamber experimental rig, the caisson type underwater separator hyperbaric chamber
As shown in Fig. 1 and above-mentioned specific implementation one, its manufacture method comprises the following steps that the structure of experimental rig：
(1) experimental rig processing parameter setting
A. according to caisson size design head, temperature parameter, calculate and determine the interior diameter size of hyperbaric chamber nacelle 4, material
The trade mark, strength grade, and the wall thickness of preset high-pressure cabin nacelle 4；
B. the height of hyperbaric chamber nacelle 4 is determined according to the length of bottom caisson；
C. hyperbaric chamber nacelle top flange 6 is designed according to the interior diameter of hyperbaric chamber nacelle 4, wall thickness and material trademark of design
Structure type, seal form, thickness and material trademark；
D. according to wall thickness, the material trademark of the structure type of hyperbaric chamber nacelle top flange 6, seal form and top caisson
Design the structure type, seal form, material trademark of hyperbaric chamber joint for sealing connecting 5；
(2) modeling and analysis
A. the threedimensional model of the separator high pressure cabin experimental rig designed using 3 d modeling software foundation step (1), so
Threedimensional model is imported in ANSYS finite element analysis softwares afterwards, or the foundation step directly in ANSYS finite element analysis softwares
(1) threedimensional model of the separator high pressure cabin experimental rig of design；
B. cell type selection and setting are carried out in ANSYS finite element analysis softwares, cell type selection is with centre
Node hexahedral element；
C. the setting of material relevant parameter is carried out in ANSYS finite element analysis softwares, the major parameter of setting has high pressure
The modulus of elasticity of material and the Poisson of material of cabin nacelle 4, hyperbaric chamber nacelle top flange 6 and hyperbaric chamber joint for sealing connecting 5
Than；
D. FEM meshing is carried out using ANSYS finite element analysis softwares, i.e., according to the size of threedimensional model and asked
The requirement of precision is solved, the setting of sizing grid, after being provided with, threedimensional model are carried out in ANSYS finite element analysis softwares
It is automatic to carry out mesh generation；
Such as mesh generation uses 20 node hexahedron solid elements to carry out grid stroke to threedimensional model for main grid
Point, i.e., discrete processes are carried out to model, establish finite element analysis model, grid cell is dimensioned to 15mm；Grid cell matter
Amount checks：Statistical result after mesh generation, unit have 277794, and node has 988639.The inspection of mesh quality is using single
First quality examination instrument, element quality inspection result is as shown in Fig. 2 by 0 to 1, mesh quality is weighed abscissa by badly improving in figure
Measure the side ratio that criterion is grid；Ordinate is the quantity of grid in figure, and the quantity of grid is directly proportional to rectangular strip, Element
Value in quality charts illustrates that mesh quality is better closer to 1.From mesh quality Fig. 2, the mesh quality is fine, greatly
Partial Mesh is all the hexahedral grid of rule, and the distribution of number of grid is close to coefficient 1；
E. the hyperbaric chamber nacelle top flange 6 of threedimensional model is sealed with hyperbaric chamber using ANSYS finite element analysis softwares
Sealing between connector 5 is analyzed, and analysis process is：Threedimensional model is applied internal pressure and external pressure, utilize ANSYS
Statics of Structures module in finite element analysis software carries out stress analysis, calculates the equivalent stress analysis knot for obtaining threedimensional model
Fruit, threedimensional model equivalent stress is evaluated using GB150-1998-analysis design standard, if the hyperbaric chamber of threedimensional model
The plastic deformation of nacelle top flange 6 and hyperbaric chamber joint for sealing connecting 5 is respectively less than or the stress value equal to prescribed by standard, then high
Ballasting nacelle top flange 6 and the wall thickness of hyperbaric chamber joint for sealing connecting 5 are the wall thickness under met relevant pressure；If threedimensional model
The plastic deformation of hyperbaric chamber nacelle top flange 6 then increases threedimensional model hyperbaric chamber nacelle top more than the stress value of prescribed by standard
The wall thickness of portion's flange 6, or the plastic deformation of hyperbaric chamber joint for sealing connecting 5 then increase more than the stress value of prescribed by standard
The wall thickness of threedimensional model hyperbaric chamber joint for sealing connecting 5, carries out analysis calculating according to a-d steps again, until the height of threedimensional model
The plastic deformation value of ballasting nacelle top flange 6 and hyperbaric chamber joint for sealing connecting 5 is respectively less than or the stress equal to prescribed by standard
Value, i.e. analysis are completed, and the sealing between the hyperbaric chamber nacelle top flange 6 and hyperbaric chamber joint for sealing connecting 5 of threedimensional model expires
Working condition requirement under sufficient relevant pressure；
F. the hyperbaric chamber nacelle top flange 6 of threedimensional model is sealed with hyperbaric chamber using ANSYS finite element analysis softwares
The intensity of connector 5 is analyzed, and analysis process is：Threedimensional model is applied internal pressure and external pressure, utilize ANSYS finite elements
Statics of Structures module in analysis software carries out stress analysis, to the hyperbaric chamber nacelle top flange 6 and high pressure of threedimensional model
Carry out linearizing stress sorts processing at the maximum stress of cabin joint for sealing connecting 5, according to GB150-1998-analysis design standard pair
Threedimensional model carries out strength assessment, if the hyperbaric chamber nacelle top flange 6 of threedimensional model and hyperbaric chamber joint for sealing connecting 5 is equivalent
Stress is respectively less than or the stress value equal to prescribed by standard, then hyperbaric chamber nacelle top flange 6 and hyperbaric chamber joint for sealing connecting 5
Wall thickness is the wall thickness under met relevant pressure；If the equivalent stress of threedimensional model hyperbaric chamber nacelle top flange 6 is more than standard
The stress value of defined then increases the wall thickness of threedimensional model hyperbaric chamber nacelle top flange 6, or hyperbaric chamber joint for sealing connecting
5 equivalent stress then increases the wall thickness of threedimensional model hyperbaric chamber joint for sealing connecting 5 more than the stress value of prescribed by standard, presses again
Analysis calculating is carried out according to a-d steps, until the hyperbaric chamber nacelle top flange 6 of threedimensional model and hyperbaric chamber joint for sealing connecting 5
Equivalent stress value is respectively less than or the stress value equal to prescribed by standard, i.e. analysis is completed, at the top of the hyperbaric chamber nacelle of threedimensional model
The intensity of flange 6 and hyperbaric chamber joint for sealing connecting 5 is to meet the working condition requirement under relevant pressure；
G. the stability of the hyperbaric chamber nacelle 4 of threedimensional model is analyzed using ANSYS finite element analysis softwares, analyzed
Process is：Threedimensional model is applied internal pressure or external pressure, to entering line at the maximum stress of hyperbaric chamber nacelle 4 of threedimensional model
Property stress sorts processing, and according to GB150-1998-analysis design standard to threedimensional model carry out strength assessment, if three-dimensional
The equivalent stress of the hyperbaric chamber nacelle 4 of model is less than or equal to the stress value of prescribed by standard, then the wall thickness of hyperbaric chamber nacelle 4 is
Wall thickness under met relevant pressure；If the equivalent stress of threedimensional model hyperbaric chamber nacelle 4 is more than the stress value of prescribed by standard
Then increase the wall thickness of hyperbaric chamber nacelle 4, carry out analysis calculating according to a-d steps again, until the hyperbaric chamber nacelle 4 of threedimensional model
Equivalent stress value be less than or equal to prescribed by standard stress value, i.e., analysis complete, the hyperbaric chamber nacelle 4 of threedimensional model it is steady
Qualitative is to meet the working condition requirement under relevant pressure；
(3) the hyperbaric chamber nacelle 4 of threedimensional model that is obtained according to step (2) analysis, hyperbaric chamber nacelle top flange 6 and
The wall thickness of hyperbaric chamber joint for sealing connecting 5 and material, complete underwater separator hyperbaric chamber experimental rig overall layout design, lead to
Cross welding or forging method completes the manufacture of underwater separator hyperbaric chamber experimental rig.
In this particular embodiment, hyperbaric chamber nacelle 4 is hollow cylindrical and its bottom is circular arc end socket, hyperbaric chamber cabin
The top of body 4 is respectively arranged with pressure gauge connection 8 and water filling pressurization interface 9.Hyperbaric chamber joint for sealing connecting 5 is justified including upper hollow
Platform part 10 and lower hollow cylindrical member 11,10, upper hollow round platform portion with lower hollow cylindrical member 11 is coaxial integrally connects
Connect, the bottom area of upper hollow round platform part 10 is less than the base area of lower hollow cylindrical member 11, lower hollow cylinder
The fringe region of part 11 is connected by bolt 7 with hyperbaric chamber nacelle top flange 6.The lower end end of hyperbaric chamber joint for sealing connecting 5
Metallic packing ring 12 is provided between face and the upper end end face of hyperbaric chamber nacelle top flange 6.Bolt 7 is high-strength stud,
Bolt 7 is provided at both ends with nut 13.
After caisson type underwater separator caisson hyperbaric chamber experiment new device is by Fig. 1 assemblings, water filling pressurization is carried out, by
Ensure in pressure process in caisson that internal pressure is normal pressure in the special construction of hyperbaric chamber joint for sealing connecting 5, caisson top external pressure
For normal pressure, the external pressure that caisson bottom is born is the internal pressure of hyperbaric chamber nacelle 4, and the numerical value in pressure gauge is the main cabin nacelle of high pressure
4 internal pressure value.
Described above is not limitation of the present invention, and the present invention is also not limited to the example above.The art it is common
Technical staff is in the essential scope of the present invention, the variations, modifications, additions or substitutions made, should also belong to the protection of the present invention
Scope.
Claims (8)
1. a kind of caisson type underwater separator hyperbaric chamber experimental rig, including top caisson and bottom caisson, it is characterised in that：Also
Including the hyperbaric chamber nacelle in experiment deep-well located underground, the hyperbaric chamber joint for sealing connecting resting on the ground and it rest on the ground
Hyperbaric chamber nacelle top flange, described hyperbaric chamber nacelle and described hyperbaric chamber joint for sealing connecting pass through described hyperbaric chamber
Nacelle top flange connects, and the outer wall of described top caisson is arranged described hyperbaric chamber joint for sealing connecting, described hyperbaric chamber
The top of joint for sealing connecting and the middle part of described top caisson pass through welded connection, described hyperbaric chamber joint for sealing connecting
Bottom and the upper end of described bottom caisson pass through welded connection, the lower end surface of described hyperbaric chamber joint for sealing connecting
It is connected with described hyperbaric chamber nacelle top flange by bolt seal, described hyperbaric chamber nacelle top flange and described height
Ballasting nacelle is connected by welded seal, and described bottom caisson is disposed longitudinally in described hyperbaric chamber nacelle, described height
The top of ballasting nacelle is respectively arranged with pressure gauge connection and water filling pressurization interface.
A kind of 2. caisson type underwater separator hyperbaric chamber experimental rig according to claim 1, it is characterised in that：Described
Hyperbaric chamber nacelle is hollow cylindrical and its bottom is circular arc end socket.
A kind of 3. caisson type underwater separator hyperbaric chamber experimental rig according to claim 1, it is characterised in that：Described
Hyperbaric chamber joint for sealing connecting includes upper hollow round platform part and lower hollow cylindrical member, described upper hollow round platform part
With the described coaxial integrally connected of lower hollow cylindrical member, the bottom area of described upper hollow round platform part is less than described
Lower hollow cylindrical member base area, the fringe region of described lower hollow cylindrical member by described bolt with
Described hyperbaric chamber nacelle top flange connection.
A kind of 4. caisson type underwater separator hyperbaric chamber experimental rig according to claim 1, it is characterised in that：Described
Metal is provided between the upper end end face of the lower end surface of hyperbaric chamber joint for sealing connecting and described hyperbaric chamber nacelle top flange
Sealing ring.
A kind of 5. caisson type underwater separator hyperbaric chamber experimental rig according to claim 1, it is characterised in that：Described
Bolt is high-strength stud, and described bolt is provided at both ends with nut.
6. a kind of manufacture method of caisson type underwater separator hyperbaric chamber experimental rig according to claim 1, its feature
It is to comprise the following steps that：
(1) experimental rig processing parameter setting
A. according to caisson size design head, temperature parameter, calculate and determine hyperbaric chamber nacelle interior diameter size, material trademark,
Strength grade, and the wall thickness of preset high-pressure cabin nacelle；
B. the height of hyperbaric chamber nacelle is determined according to the length of bottom caisson；
C. the structure shape of hyperbaric chamber nacelle top flange is designed according to the hyperbaric chamber nacelle interior diameter, wall thickness and material trademark of design
Formula, seal form, thickness and material trademark；
D. designed according to the structure type of hyperbaric chamber nacelle top flange, the wall thickness of seal form and top caisson, material trademark
The structure type of hyperbaric chamber joint for sealing connecting, seal form, material trademark；
(2) modeling and analysis
A. the threedimensional model of the separator high pressure cabin experimental rig designed using 3 d modeling software foundation step (1), then will
Threedimensional model is imported in ANSYS finite element analysis softwares, or foundation step (1) directly in ANSYS finite element analysis softwares
The threedimensional model of the separator high pressure cabin experimental rig of design；
B. cell type selection and setting are carried out in ANSYS finite element analysis softwares, cell type selection carries intermediate node
Hexahedral element；
C. the setting of material relevant parameter is carried out in ANSYS finite element analysis softwares, the major parameter of setting has hyperbaric chamber cabin
The modulus of elasticity of the material of body, hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting and the Poisson's ratio of material；
D. FEM meshing is carried out using ANSYS finite element analysis softwares, i.e., according to the size of threedimensional model and solves essence
The requirement of degree, the setting of sizing grid is carried out in ANSYS finite element analysis softwares, after being provided with, threedimensional model is automatic
Carry out mesh generation；
E. the hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting using ANSYS finite element analysis softwares to threedimensional model
Between sealing analyzed, analysis process is：Threedimensional model is applied internal pressure and external pressure, utilize ANSYS finite elements
Statics of Structures module in analysis software carries out stress analysis, calculates the equivalent stress analysis result for obtaining threedimensional model, adopts
Threedimensional model equivalent stress is evaluated with GB150-1998-analysis design standard, if the hyperbaric chamber nacelle of threedimensional model
The plastic deformation of top flange and hyperbaric chamber joint for sealing connecting is respectively less than or the stress value equal to prescribed by standard, then hyperbaric chamber cabin
Body top flange and the wall thickness of hyperbaric chamber joint for sealing connecting are the wall thickness under met relevant pressure；If threedimensional model hyperbaric chamber cabin
The plastic deformation of body top flange then increases threedimensional model hyperbaric chamber nacelle top flange more than the stress value of prescribed by standard
Wall thickness, or the plastic deformation of hyperbaric chamber joint for sealing connecting then increase threedimensional model height more than the stress value of prescribed by standard
The wall thickness of ballasting joint for sealing connecting, analysis calculating is carried out according to a-d steps again, until at the top of the hyperbaric chamber nacelle of threedimensional model
The plastic deformation value of flange and hyperbaric chamber joint for sealing connecting is respectively less than or the stress value equal to prescribed by standard, i.e. analysis are completed,
The work under sealing sexual satisfaction relevant pressure between the hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting of threedimensional model
Condition requirement；
F. the hyperbaric chamber nacelle top flange and hyperbaric chamber joint for sealing connecting using ANSYS finite element analysis softwares to threedimensional model
Intensity analyzed, analysis process is：Threedimensional model is applied internal pressure and external pressure, it is soft using ANSYS finite element analyses
Statics of Structures module in part carries out stress analysis, and the hyperbaric chamber nacelle top flange and hyperbaric chamber sealing of threedimensional model are connected
Carry out linearizing stress sorts processing at joint maximum stress, according to GB150-1998-analysis design standard to threedimensional model
Strength assessment is carried out, if the hyperbaric chamber nacelle top flange and the equivalent stress of hyperbaric chamber joint for sealing connecting of threedimensional model are respectively less than
Or the stress value equal to prescribed by standard, then hyperbaric chamber nacelle top flange with the wall thickness of hyperbaric chamber joint for sealing connecting to be met
Wall thickness under relevant pressure；If the equivalent stress of threedimensional model hyperbaric chamber nacelle top flange is more than the stress value of prescribed by standard
Then increase the wall thickness of threedimensional model hyperbaric chamber nacelle top flange, or the equivalent stress of hyperbaric chamber joint for sealing connecting is more than
The stress value of prescribed by standard then increases the wall thickness of threedimensional model hyperbaric chamber joint for sealing connecting, is divided again according to a-d steps
Analysis calculates, until the equivalent stress value of hyperbaric chamber nacelle top flange and the hyperbaric chamber joint for sealing connecting of threedimensional model be respectively less than or
Equal to the stress value of prescribed by standard, i.e. analysis is completed, and hyperbaric chamber nacelle top flange and the hyperbaric chamber sealing of threedimensional model connect
The intensity of joint is to meet the working condition requirement under relevant pressure；
G. the stability of the hyperbaric chamber nacelle of threedimensional model is analyzed using ANSYS finite element analysis softwares, analyzes process
For：Threedimensional model is applied internal pressure or external pressure, to being linearized at the hyperbaric chamber nacelle maximum stress of threedimensional model
Stress sorts processing, and strength assessment is carried out to threedimensional model according to GB150-1998-analysis design standard, if threedimensional model
Hyperbaric chamber nacelle equivalent stress be less than or equal to prescribed by standard stress value, then the wall thickness of hyperbaric chamber nacelle is is met
Wall thickness under relevant pressure；Increase height if the equivalent stress of threedimensional model hyperbaric chamber nacelle is more than the stress value of prescribed by standard
The wall thickness of ballasting nacelle, analysis calculating is carried out according to a-d steps again, until the equivalent stress of the hyperbaric chamber nacelle of threedimensional model
Value is to meet less than or equal to the stress value of prescribed by standard, i.e. analysis completion, the stability of the hyperbaric chamber nacelle of threedimensional model
Working condition requirement under relevant pressure；
(3) hyperbaric chamber nacelle, hyperbaric chamber nacelle top flange and the hyperbaric chamber of the threedimensional model obtained according to step (2) analysis
The wall thickness of joint for sealing connecting and material, complete underwater separator hyperbaric chamber experimental rig overall layout design, pass through welding
Or forging method completes the manufacture of underwater separator hyperbaric chamber experimental rig.
7. a kind of manufacture method of caisson type underwater separator hyperbaric chamber experimental rig according to claim 6, its feature
It is：Described hyperbaric chamber nacelle is hollow cylindrical and its bottom is circular arc end socket, the top of described hyperbaric chamber nacelle
It is respectively arranged with pressure gauge connection and water filling pressurization interface；Described hyperbaric chamber joint for sealing connecting includes upper hollow round platform part
With lower hollow cylindrical member, described upper hollow round platform part coaxially integrally connects with described lower hollow cylindrical member
Connect, the bottom area of described upper hollow round platform part is less than the base area of described lower hollow cylindrical member.
8. a kind of manufacture method of caisson type underwater separator hyperbaric chamber experimental rig according to claim 6, its feature
It is：The fringe region of described lower hollow cylindrical member passes through described bolt and described hyperbaric chamber nacelle top flange
Connection, between the lower end surface of described hyperbaric chamber joint for sealing connecting and the upper end end face of described hyperbaric chamber nacelle top flange
Metallic packing ring is provided with, described bolt is high-strength stud, and described bolt is provided at both ends with nut.
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| CN108152142A (en) * | 2017-12-18 | 2018-06-12 | 合肥海川石化设备有限公司 | A kind of deep submersible electric pump motor water pressure test tank |
| CN107895098B (en) * | 2017-12-29 | 2021-03-26 | 上海理工大学 | Optimization design method for parabolic-arc-shaped end socket structure |
| CN108324471A (en) * | 2018-01-23 | 2018-07-27 | 西南医科大学附属医院 | hyperbaric oxygen chamber |
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