CN107631105B - Liquefy shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method - Google Patents
Liquefy shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method Download PDFInfo
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Abstract
The invention discloses a kind of liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design methods, this method by meeting the maximum allowed pressure drop in compound energy transmission pipeline, maximum allowable temperature rise and maximum allowable vacuum degree change rate these three run-limiting conditions, avoid because vacuum, heat insulating construction design it is unreasonable due to caused by vacuum maintenance time is too short or pipeline leakage heat is excessive security risk.Simultaneously, directly liquid nitrogen transmission pipeline is arranged in liquefaction shale gas transmission pipeline by the present invention, the development cost for not only reducing entire compound energy pipeline also reduces the leakage thermal power of liquid nitrogen transmission pipeline, and then saves the operating cost for the Cryo Refrigerator being arranged in outside compound energy pipeline.
Description
Technical field
The present invention relates to oil-gas storage and technical field of transportation and power transmission technology field, in particular to a kind of low cost
Liquefy shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method.
Background technique
In recent years for the motivation for alleviating the energy crisis and environmental protection pressure that are on the rise, except charged shale gas and liquefaction page
Other than the long distance transportation mode of rock gas, shale gas is also used directly as power generation applications.In the local directly construction of shale gas exploitation
Large capacity shale gas power station, then remote distance power user is delivered to by traditional ultra-high-tension power transmission line.Since shale gas is opened
Fief area is often apart from each other with the big and medium-sized cities region of concentration electricity consumption, and traditional high voltage power transmission mode will inevitably be brought
The cost problem of construction and the maintenance of high pressure overhead power line.
Chinese patent CN2015106342153 discloses a kind of liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy
Transmission system, one side will liquefy the setting of shale gas transmission pipeline in liquid nitrogen transmission pipeline, using with lower operation temperature
The liquid nitrogen (65-75K) of degree makes liquefaction shale gas (110-120K) maintain normal operation warm area always, eliminates liquefaction shale gas
Temperature rise and gasification security risk；On the other hand direct supercurrent cable is arranged in liquid nitrogen transmission pipeline, it is lower using having
The liquid nitrogen refrigerating direct supercurrent cable of running temperature, makes it have higher electric energy transmission capacity.But there is no comprehensive for the patent
It closes and considers maximum allowed pressure drop, maximum allowable temperature rise and maximum allowable these three restrictive conditions of vacuum degree change rate, it is remote to realize
Liquefaction shale gas-liquid nitrogen-direct supercurrent cable the compound energy of distance, large capacity transmits.
Summary of the invention
The present invention in order to solve the above technical problems, provide one kind comprehensively consider maximum allowed pressure drop, maximum allowable temperature rise and
Maximum allowable these three restrictive conditions of vacuum degree change rate, and can be realized remote, large capacity liquefaction shale gas-liquid nitrogen-
The pipe design method of direct supercurrent cable compound energy transmission.
In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is that:
A kind of liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method comprising following steps,
1) liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline construction is determined；Wherein, direct supercurrent electricity
Cable is co-axially located at the inside of liquid nitrogen transmission pipeline, and the liquid nitrogen transmission pipeline is co-axially located at liquefaction shale gas transmission pipeline
It is internal；Moreover, the liquefaction shale gas transmission pipeline includes vacuum interlayer and the institute between inner tube, outer tube, inner tube and outer tube
State the heat-insulating material in vacuum interlayer；The liquid nitrogen transmission pipeline includes the vacuum interlayer between inner tube, outer tube, inner tube and outer tube
And the heat-insulating material in the vacuum interlayer；The direct supercurrent cable includes metallic copper skeleton and is wound on metallic copper skeleton
On superconductivity wire；Wherein, the inner tube of the liquefaction shale gas transmission pipeline passes through several metal supporting frames and the liquid nitrogen
The outer tube of transmission pipeline is connected, and the inner tube of the liquid nitrogen transmission pipeline passes through several nonmetallic support frames and the superconduction
The metallic copper skeleton of direct current cables is connected；And the inner tube of the liquefaction shale gas transmission pipeline and the liquid nitrogen transmission pipeline and outer
Guan Jun is made of stainless steel；
2) it determines liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline default capabilities parameter and allows work
Make condition；The initial pressure for including: liquid nitrogen is P1, the maximum allowed pressure drop of liquid nitrogen is in unit transmission lengthAt the beginning of liquid nitrogen
Beginning temperature is T1, the Maximum Permissible Temperature Difference of liquid nitrogen is in unit transmission lengthLiquid nitrogen transmission pipeline in unit runing time
Maximum allowable vacuum degree change rate isThe flow mass of liquefaction shale gas is in the unit transmission timeLiquefy shale gas
Initial pressure be P2, the maximum allowed pressure drop of liquefaction shale gas is in unit transmission lengthThe initial temperature of liquefaction shale gas
Degree is T2, the Maximum Permissible Temperature Difference of liquefaction shale gas is in unit transmission lengthLiquefaction shale gas passes in unit runing time
The maximum allowable vacuum degree change rate of defeated pipeline isAtmospheric pressure outside compound energy pipeline is P3, outside compound energy pipeline
Atmospheric temperature be T3, the loss power of the direct supercurrent cable is q1, the liquid nitrogen transmission pipeline leaks into the liquefaction page
Leakage thermal power in rock gas transmission pipeline is q2；
3) liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline design parameter is determined；It include: the liquid
The internal diameter D of the inner tube of nitrogen transmission pipeline0, outer diameter D1With thickness S1, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2, outer diameter D3With
Thickness S2, the thickness δ of the vacuum interlayer of the liquid nitrogen transmission pipeline1, the thickness δ of the heat-insulating material of the liquid nitrogen transmission pipeline2,
The internal diameter D of the inner tube of the liquefaction shale gas transmission pipeline4, outer diameter D5With thickness S3, the liquefaction shale gas transmission pipeline it is outer
The internal diameter D of pipe6, outer diameter D7With thickness S4, the thickness δ of the vacuum interlayer of the liquefaction shale gas transmission pipeline3, the liquefaction page
The thickness δ of the heat-insulating material of rock gas transmission pipeline4, the flow mass of liquid nitrogen in the unit transmission timeThe liquefaction shale gas
Transmission pipeline leaks into the leakage thermal power q in ambient atmosphere3；
According to D0WithFunctional relation determines D0WithFirst numerical value relation equation:
Wherein, ρ1For the density of liquid nitrogen；f1For the coefficient of friction of liquid nitrogen；
According toWithq1、q2、D0Functional relation, determine D0WithSecond numerical value relation equation:
Wherein, C1For the specific heat capacity of liquid nitrogen；
Simultaneous D0WithTwo values relation equation, solve D0WithNumerical values recited；
According to S1With P1、D0Functional relation, determine S1Numerical value:
Wherein, σ is permitted stress for stainless steel material；For the weld joint efficiency of stainless steel material；The liquid nitrogen transmission pipeline
Inner tube outer diameter D1Equal to D0+2S1；
According to δ1With T1、T2、q2、D1Functional relation, determine δ1Numerical value:
Wherein, λ is the thermal conductivity of heat-insulating material；
According to δ2Withδ1、D1Functional relation, determine δ2Numerical value:
Wherein, g1For the deflation rate of heat-insulating material；g2For the deflation rate of stainless steel tube；Work as δ1≤δ2When, the reality of heat-insulating material
Border thickness is set as δ1, and the actual (real) thickness of vacuum interlayer is set as δ2, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2It is equal to
D1+2δ2；Work as δ1>δ2When, the actual (real) thickness of heat-insulating material is set as δ1, and the actual (real) thickness of vacuum interlayer is also configured as δ1, described
The internal diameter D of the outer tube of liquid nitrogen transmission pipeline2Equal to D1+2δ1；
According to S2With P2、D2Functional relation, determine S2Numerical value:
Wherein, m is the coefficient of stability of stainless steel material；E is the elasticity modulus of stainless steel material；L is the length of stainless steel tube
Degree；The outer diameter D of the outer tube of the liquid nitrogen transmission pipeline3Equal to D2+2S2；
According to D4WithD3Functional relation determines D4Numerical value:
Wherein, ρ2For the density for the shale gas that liquefies；f2For the coefficient of friction for the shale gas that liquefies；
According to q3Withq2、D3、D4Functional relation, determine q3Numerical value:
Wherein, C2For the specific heat capacity for the shale gas that liquefies；
According to S3With P2、D4Functional relation, determine S3Numerical value:
The outer diameter D of the inner tube of the liquefaction shale gas transmission pipeline5Equal to D4+2S3；
According to δ3With T2、T3、q3、D5Functional relation, determine δ3Numerical value:
According to δ4Withδ3、D5Functional relation, determine δ4Numerical value:
Work as δ3≤δ4When, the actual (real) thickness of heat-insulating material is set as δ3, and the actual (real) thickness of vacuum interlayer is set as δ4, this
The internal diameter D of the outer tube of Shi Suoshu liquefaction shale gas transmission pipeline6Equal to D5+2δ4；Work as δ3>δ4When, the actual (real) thickness of heat-insulating material is set
It is set to δ3, and the actual (real) thickness of vacuum interlayer is also configured as δ3, the internal diameter D of the outer tube of the shale gas transmission pipeline that liquefies described at this time6
Equal to D5+2δ3；
According to S4With P3、D6Functional relation, determine S4Numerical value:
The outer diameter D of the outer tube of the liquefaction shale gas transmission pipeline7Equal to D6+2S4。
Compared with prior art, the beneficial effects of the present invention are:
The present invention liquefies in shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method, multiple by meeting
Closing maximum allowed pressure drop, maximum allowable temperature rise and maximum allowable vacuum degree change rate in energy source pipeline, these three run limit
Condition processed, vacuum maintenance time is too short or pipeline leakage heat is excessive caused by avoiding due to vacuum, heat insulating construction design are unreasonable
Security risk.Meanwhile directly liquid nitrogen transmission pipeline is arranged in liquefaction shale gas transmission pipeline by the present invention, not only reduces
The development cost of entire compound energy pipeline also reduces the leakage thermal power of liquid nitrogen transmission pipeline, and then saves and be arranged compound
The operating cost of Cryo Refrigerator outside energy conduit.
Detailed description of the invention:
Fig. 1 is present invention liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy transmission pipeline structure chart.
Specific embodiment
The present invention is described in further detail With reference to embodiment.But this should not be interpreted as to the present invention
The range of above-mentioned theme is only limitted to embodiment below, all that model of the invention is belonged to based on the technology that the content of present invention is realized
It encloses.
Invention present invention liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy transmission pipeline knot as shown in connection with fig. 1
Composition；Wherein, present invention liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method, including following step
It is rapid:
1) liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline construction is determined；Wherein, direct supercurrent electricity
Cable is co-axially located at the inside of liquid nitrogen transmission pipeline, and the liquid nitrogen transmission pipeline is co-axially located at liquefaction shale gas transmission pipeline
It is internal；Moreover, the liquefaction shale gas transmission pipeline includes vacuum interlayer and the institute between inner tube, outer tube, inner tube and outer tube
State the heat-insulating material in vacuum interlayer；The liquid nitrogen transmission pipeline includes the vacuum interlayer between inner tube, outer tube, inner tube and outer tube
And the heat-insulating material in the vacuum interlayer；The direct supercurrent cable includes metallic copper skeleton and is wound on metallic copper skeleton
On superconductivity wire；Wherein, the inner tube of the liquefaction shale gas transmission pipeline passes through several metal supporting frames and the liquid nitrogen
The outer tube of transmission pipeline is connected, and the inner tube of the liquid nitrogen transmission pipeline passes through several nonmetallic support frames and the superconduction
The metallic copper skeleton of direct current cables is connected；And the inner tube of the liquefaction shale gas transmission pipeline and the liquid nitrogen transmission pipeline and outer
Guan Jun is made of stainless steel.
2) it determines liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline default capabilities parameter and allows work
Make condition；The initial pressure for including: liquid nitrogen is P1, the maximum allowed pressure drop of liquid nitrogen is in unit transmission lengthAt the beginning of liquid nitrogen
Beginning temperature is T1, the Maximum Permissible Temperature Difference of liquid nitrogen is in unit transmission lengthLiquid nitrogen transmission pipeline in unit runing time
Maximum allowable vacuum degree change rate isThe flow mass of liquefaction shale gas is in the unit transmission timeLiquefy shale gas
Initial pressure be P2, the maximum allowed pressure drop of liquefaction shale gas is in unit transmission lengthThe initial temperature of liquefaction shale gas
Degree is T2, the Maximum Permissible Temperature Difference of liquefaction shale gas is in unit transmission lengthLiquefaction shale gas passes in unit runing time
The maximum allowable vacuum degree change rate of defeated pipeline isAtmospheric pressure outside compound energy pipeline is P3, outside compound energy pipeline
Atmospheric temperature be T3, the loss power of the direct supercurrent cable is q1, the liquid nitrogen transmission pipeline leaks into the liquefaction page
Leakage thermal power in rock gas transmission pipeline is q2。
3) large capacity liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline design parameter is determined；Include:
The internal diameter D of the inner tube of the liquid nitrogen transmission pipeline0, outer diameter D1With thickness S1, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2、
Outer diameter D3With thickness S2, the thickness δ of the vacuum interlayer of the liquid nitrogen transmission pipeline1, the heat-insulating material of the liquid nitrogen transmission pipeline
Thickness δ2, the internal diameter D of the inner tube of the liquefaction shale gas transmission pipeline4, outer diameter D5With thickness S3, the liquefaction shale gas transmission
The internal diameter D of the outer tube of pipeline6, outer diameter D7With thickness S4, the thickness δ of the vacuum interlayer of the liquefaction shale gas transmission pipeline3, institute
State the thickness δ of the heat-insulating material of liquefaction shale gas transmission pipeline4, the flow mass of liquid nitrogen in the unit transmission timeThe liquid
Change shale gas transmission pipeline and leaks into the leakage thermal power q in ambient atmosphere3。
Specifically, according to D0WithFunctional relation determines D0WithFirst numerical value relation equation:
Wherein, ρ1For the density of liquid nitrogen；f1For the coefficient of friction of liquid nitrogen；Moreover,
Wherein, μ1For the dynamic viscosity of liquid nitrogen；v1For the transmission speed of liquid nitrogen.
According toWithq1、q2、D0Functional relation, determine D0WithSecond numerical value relation equation:
Wherein, C1For the specific heat capacity of liquid nitrogen；Simultaneous D0WithTwo values relation equation, solve D0WithNumber
It is worth size.
According to S1With P1、D0Functional relation, determine S1Numerical value:
Wherein, σ is permitted stress for stainless steel material；For the weld joint efficiency of stainless steel material；The liquid nitrogen transfer tube
The outer diameter D of the inner tube in road1Equal to D0+2S1；
According to δ1With T1、T2、q2、D1Functional relation, determine δ1Numerical value:
Wherein, λ is the thermal conductivity of heat-insulating material.
According to δ 2 withThe functional relation of δ 1, D1 determine the numerical value of δ 2:
Wherein, g1For the deflation rate of heat-insulating material；g2For the deflation rate of stainless steel tube；Work as δ1≤δ2When, the reality of heat-insulating material
Border thickness is set as δ1, and the actual (real) thickness of vacuum interlayer is set as δ2, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2It is equal to
D1+2δ2；Work as δ1>δ2When, the actual (real) thickness of heat-insulating material is set as δ1, and the actual (real) thickness of vacuum interlayer is also configured as δ1, described
The internal diameter D of the outer tube of liquid nitrogen transmission pipeline2Equal to D1+2δ1。
According to S2With P2、D2Functional relation, determine S2Numerical value:
Wherein, m is the coefficient of stability of stainless steel material；E is the elasticity modulus of stainless steel material；L is the length of stainless steel tube
Degree；The outer diameter D of the outer tube of the liquid nitrogen transmission pipeline3Equal to D2+2S2。
According to D4WithD3Functional relation determines D4Numerical value:
Wherein, ρ2For the density for the shale gas that liquefies；f2For the coefficient of friction for the shale gas that liquefies；Moreover,
Wherein, μ2For the dynamic viscosity for the shale gas that liquefies；v2For the transmission speed for the shale gas that liquefies.
According to q3Withq2、D3、D4Functional relation, determine q3Numerical value:
Wherein, C2For the specific heat capacity for the shale gas that liquefies；
According to S3With P2、D4Functional relation, determine S3Numerical value:
The outer diameter D of the inner tube of the liquefaction shale gas transmission pipeline5Equal to D4+2S3。
According to δ3With T2、T3、q3、D5Functional relation, determine δ3Numerical value:
According to δ4Withδ3、D5Functional relation, determine δ4Numerical value:
Work as δ3≤δ4When, the actual (real) thickness of heat-insulating material is set as δ3, and the actual (real) thickness of vacuum interlayer is set as δ4, this
The internal diameter D of the outer tube of Shi Suoshu liquefaction shale gas transmission pipeline6Equal to D5+2δ4；Work as δ3>δ4When, the actual (real) thickness of heat-insulating material is set
It is set to δ3, and the actual (real) thickness of vacuum interlayer is also configured as δ3, the internal diameter D of the outer tube of the shale gas transmission pipeline that liquefies described at this time6
Equal to D5+2δ3。
According to S4With P3、D6Functional relation, determine S4Numerical value:
The outer diameter D of the outer tube of the liquefaction shale gas transmission pipeline7Equal to D6+2S4。
Therefore, in present invention liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method, by full
Maximum allowed pressure drop, maximum allowable temperature rise and maximum allowable vacuum degree change rate in foot compound energy transmission pipeline these three
Run-limiting condition, vacuum maintenance time is too short or pipeline leakage caused by avoiding due to vacuum, heat insulating construction design are unreasonable
The excessive security risk of heat.Meanwhile directly liquid nitrogen transmission pipeline is arranged in liquefaction shale gas transmission pipeline by the present invention, not only
The development cost for reducing entire compound energy pipeline also reduces the leakage thermal power of liquid nitrogen transmission pipeline, and then saves setting
The operating cost of Cryo Refrigerator outside compound energy pipeline.
A specific embodiment of the invention is described in detail above in conjunction with attached drawing, but the present invention is not restricted to
Embodiment is stated, in the spirit and scope for not departing from claims hereof, those skilled in the art can be done
Various modifications or remodeling out.
Claims (1)
1. a kind of liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipe design method, which is characterized in that including with
Lower step,
1) liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline construction is determined；Wherein, direct supercurrent cable is same
The inside of liquid nitrogen transmission pipeline is arranged in axis, and the liquid nitrogen transmission pipeline is co-axially located at the interior of liquefaction shale gas transmission pipeline
Portion；Moreover, the liquefaction shale gas transmission pipeline includes vacuum interlayer between inner tube, outer tube, inner tube and outer tube and described
Heat-insulating material in vacuum interlayer；The liquid nitrogen transmission pipeline include the vacuum interlayer between inner tube, outer tube, inner tube and outer tube with
And the heat-insulating material in the vacuum interlayer；The direct supercurrent cable includes metallic copper skeleton and is wound on metallic copper skeleton
Superconductivity wire；Wherein, the inner tube of the liquefaction shale gas transmission pipeline is passed by several metal supporting frames and the liquid nitrogen
The outer tube of defeated pipeline is connected, and the inner tube of the liquid nitrogen transmission pipeline is straight by several nonmetallic support frames and the superconduction
The metallic copper skeleton of galvanic electricity cable is connected；And the inner tube and outer tube of liquefaction the shale gas transmission pipeline and the liquid nitrogen transmission pipeline
It is made of stainless steel；
2) it determines liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline default capabilities parameter and allows work item
Part；The initial pressure for including: liquid nitrogen is P1, the maximum allowed pressure drop of liquid nitrogen is in unit transmission lengthThe initial temperature of liquid nitrogen
Degree is T1, the Maximum Permissible Temperature Difference of liquid nitrogen is in unit transmission lengthThe maximum of liquid nitrogen transmission pipeline in unit runing time
Allow vacuum degree change rate beThe flow mass of liquefaction shale gas is in the unit transmission timeAt the beginning of liquefaction shale gas
Beginning pressure is P2, the maximum allowed pressure drop of liquefaction shale gas is in unit transmission lengthLiquefaction shale gas initial temperature be
T2, the Maximum Permissible Temperature Difference of liquefaction shale gas is in unit transmission lengthLiquefy shale gas transfer tube in unit runing time
The maximum allowable vacuum degree change rate in road isAtmospheric pressure outside compound energy pipeline is P3, big outside compound energy pipeline
Temperature degree is T3, the loss power of the direct supercurrent cable is q1, the liquid nitrogen transmission pipeline leaks into the liquefaction shale gas
Leakage thermal power in transmission pipeline is q2；
3) liquefaction shale gas-liquid nitrogen-direct supercurrent cable compound energy pipeline design parameter is determined；It include: that the liquid nitrogen passes
The internal diameter D of the inner tube of defeated pipeline0, outer diameter D1With thickness S1, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2, outer diameter D3And thickness
S2, the thickness δ of the vacuum interlayer of the liquid nitrogen transmission pipeline1, the thickness δ of the heat-insulating material of the liquid nitrogen transmission pipeline2, described
The internal diameter D of the inner tube of liquefaction shale gas transmission pipeline4, outer diameter D5With thickness S3, the outer tube of the liquefaction shale gas transmission pipeline
Internal diameter D6, outer diameter D7With thickness S4, the thickness δ of the vacuum interlayer of the liquefaction shale gas transmission pipeline3, the liquefaction shale gas
The thickness δ of the heat-insulating material of transmission pipeline4, the flow mass of liquid nitrogen in the unit transmission timeThe liquefaction shale gas transmission
Leakage thermal power q of the pipe leakage into ambient atmosphere3；
According to D0WithFunctional relation determines D0WithFirst numerical value relation equation:
Wherein, ρ1For the density of liquid nitrogen；f1For the coefficient of friction of liquid nitrogen, moreover,
Wherein, μ1For the dynamic viscosity of liquid nitrogen；v1For the transmission speed of liquid nitrogen；
According toWithq1、q2、D0Functional relation, determine D0WithSecond numerical value relation equation:
Wherein, C1For the specific heat capacity of liquid nitrogen；Simultaneous D0WithTwo values relation equation, solve D0WithNumerical value it is big
It is small；
According to S1With P1、D0Functional relation, determine S1Numerical value:
Wherein, σ is permitted stress for stainless steel material；For the weld joint efficiency of stainless steel material；The liquid nitrogen transmission pipeline it is interior
The outer diameter D of pipe1Equal to D0+2S1；
According to δ1With T1、T2、q2、D1Functional relation, determine δ1Numerical value:
Wherein, λ is the thermal conductivity of heat-insulating material；
According to δ2Withδ1、D1Functional relation, determine δ2Numerical value:
Wherein, g1For the deflation rate of heat-insulating material；g2For the deflation rate of stainless steel tube；Work as δ1≤δ2When, the practical thickness of heat-insulating material
Degree is set as δ1, and the actual (real) thickness of vacuum interlayer is set as δ2, the internal diameter D of the outer tube of the liquid nitrogen transmission pipeline2Equal to D1+2
δ2；Work as δ1>δ2When, the actual (real) thickness of heat-insulating material is set as δ1, and the actual (real) thickness of vacuum interlayer is also configured as δ1, the liquid nitrogen
The internal diameter D of the outer tube of transmission pipeline2Equal to D1+2δ1；
According to S2With P2、D2Functional relation, determine S2Numerical value:
Wherein, m is the coefficient of stability of stainless steel material；E is the elasticity modulus of stainless steel material；L is the length of stainless steel tube；Institute
State the outer diameter D of the outer tube of liquid nitrogen transmission pipeline3Equal to D2+2S2；
According to D4WithD3Functional relation determines D4Numerical value:
Wherein, ρ2For the density for the shale gas that liquefies；f2For liquefy shale gas coefficient of friction, moreover,
Wherein, μ2For the dynamic viscosity for the shale gas that liquefies；v2For the transmission speed for the shale gas that liquefies；
According to q3Withq2、D3、D4Functional relation, determine q3Numerical value:
Wherein, C2For the specific heat capacity for the shale gas that liquefies；
According to S3With P2、D4Functional relation, determine S3Numerical value:
The outer diameter D of the inner tube of the liquefaction shale gas transmission pipeline5Equal to D4+2S3；
According to δ3With T2、T3、q3、D5Functional relation, determine δ3Numerical value:
According to δ4Withδ3、D5Functional relation, determine δ4Numerical value:
Work as δ3≤δ4When, the actual (real) thickness of heat-insulating material is set as δ3, and the actual (real) thickness of vacuum interlayer is set as δ4, described at this time
The internal diameter D of the outer tube of liquefaction shale gas transmission pipeline6Equal to D5+2δ4；Work as δ3>δ4When, the actual (real) thickness of heat-insulating material is set as
δ3, and the actual (real) thickness of vacuum interlayer is also configured as δ3, the internal diameter D of the outer tube of the shale gas transmission pipeline that liquefies described at this time6It is equal to
D5+2δ3；
According to S4With P3、D6Functional relation, determine S4Numerical value:
The outer diameter D of the outer tube of the liquefaction shale gas transmission pipeline7Equal to D6+2S4。
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005119867A1 (en) * | 2004-06-03 | 2005-12-15 | Volvo Lastvagnar Ab | Cable protection and method for mounting a cable protection |
| KR20100003908U (en) * | 2008-10-06 | 2010-04-15 | 주식회사 삼영기술 | gap maintenance means of propulsion method |
| CN204512702U (en) * | 2015-01-12 | 2015-07-29 | 江苏金海新能源科技有限公司 | Gas delivery conduit and the hydraulic tensioning system under being applied to low temperature environment |
| EP2949980A1 (en) * | 2014-05-27 | 2015-12-02 | The Boeing Company | Methods of manufacturing a fluid distribution system assembly |
| CN105179823A (en) * | 2015-09-29 | 2015-12-23 | 四川师范大学 | Liquidation shale gas-liquid nitrogen-superconduction direct current cable composite energy resource transmission system |
| CN205578936U (en) * | 2016-03-09 | 2016-09-14 | 成都聚智工业设计有限公司 | Oil transmission pipeline |
| WO2017116322A1 (en) * | 2015-12-28 | 2017-07-06 | Mir Arastirma Ve Gelistirme A.S. | System and method for forming continuous profiled tubes |
| CN206398208U (en) * | 2017-01-16 | 2017-08-11 | 襄阳金达成精细化工有限公司 | A kind of double-layer heat insulation transmission pipeline |
-
2017
- 2017-09-15 CN CN201710833516.8A patent/CN107631105B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005119867A1 (en) * | 2004-06-03 | 2005-12-15 | Volvo Lastvagnar Ab | Cable protection and method for mounting a cable protection |
| KR20100003908U (en) * | 2008-10-06 | 2010-04-15 | 주식회사 삼영기술 | gap maintenance means of propulsion method |
| EP2949980A1 (en) * | 2014-05-27 | 2015-12-02 | The Boeing Company | Methods of manufacturing a fluid distribution system assembly |
| CN204512702U (en) * | 2015-01-12 | 2015-07-29 | 江苏金海新能源科技有限公司 | Gas delivery conduit and the hydraulic tensioning system under being applied to low temperature environment |
| CN105179823A (en) * | 2015-09-29 | 2015-12-23 | 四川师范大学 | Liquidation shale gas-liquid nitrogen-superconduction direct current cable composite energy resource transmission system |
| WO2017116322A1 (en) * | 2015-12-28 | 2017-07-06 | Mir Arastirma Ve Gelistirme A.S. | System and method for forming continuous profiled tubes |
| CN205578936U (en) * | 2016-03-09 | 2016-09-14 | 成都聚智工业设计有限公司 | Oil transmission pipeline |
| CN206398208U (en) * | 2017-01-16 | 2017-08-11 | 襄阳金达成精细化工有限公司 | A kind of double-layer heat insulation transmission pipeline |
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