CN108975260B - LNG fills pipe fitting - Google Patents

LNG fills pipe fitting Download PDF

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Publication number
CN108975260B
CN108975260B CN201810586679.5A CN201810586679A CN108975260B CN 108975260 B CN108975260 B CN 108975260B CN 201810586679 A CN201810586679 A CN 201810586679A CN 108975260 B CN108975260 B CN 108975260B
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China
Prior art keywords
outer tube
annulus
superconducting coil
pipe fitting
lng
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CN201810586679.5A
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CN108975260A (en
Inventor
龚希武
冉行耀
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Zhejiang Ocean University ZJOU
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Zhejiang Ocean University ZJOU
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B67OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67DDISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D9/00Apparatus or devices for transferring liquids when loading or unloading ships

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

The present invention provides a kind of LNG to fill pipe fitting, belongs to ship machinery technical field.The problem of it will cause pipeline outer wall condensation frost when solving existing LNG filling, influence service life and the filling operation of equipment.This LNG fills pipe fitting, including integrally formed inner and outer tubes, gap between inner and outer tubes forms the cavity of annular, it is connected with the liquid nitrogen connecting tube being connected to cavity on outer tube, is equipped with several superconducting coils one on outer tube in the axial direction, superconducting coil one is connect by conducting wire with current controller, annulus is also arranged on outer tube, annulus is equipped with magnet, and circumferentially arranged with several hairbrush, hairbrush can contact the inner ring of annulus with the outer tube wall of outer tube.This LNG fills pipe fitting by setting superconducting coil one and annulus, controls the successively power on/off of the superconducting coil one in each column by current controller, attracts annulus to move back and forth along outer tube, strike off frost on pipeline by hairbrush, prevent from condensing, filling is facilitated to operate.

Description

LNG fills pipe fitting
Technical field
The invention belongs to ship machinery technical fields, are related to a kind of LNG filling pipe fitting.
Background technique
For Power Vessel still in development, prospect is very good.Wherein LNG cargo ship is internationally recognized " three high " product, LNG Ship is the specialized ships of the transport liquefied gases under subzero 163 degrees Celsius of low temperature, is high-tech, highly difficult, high added value " three It is high that " product is a kind of " marine super van cooler ".The storage tank of LNG ship is independently of the special tectonic of hull.
Existing LNG ship needs to realize the transfer of LNG by pipeline, line connection is due to protecting in filling and unloading Temp effect is poor, to prevent liquid from vaporizing, needs to be cooled down using liquid nitrogen, especially in return line, needs to utilize liquid nitrogen Gaseous methane is cooled to liquid, it is made to flow back to tube body.However using liquid nitrogen it is cooling will cause pipeline outer wall condense it is thick Frost, the service life for not only influencing equipment also seriously affect filling operation.
Summary of the invention
The purpose of the present invention is there is the above problem in view of the prior art, a kind of LNG filling pipe fitting, this hair are proposed It is bright the technical problem to be solved is that: how to prevent pipeline outer wall condense frost, facilitate the operation of filling.
Object of the invention can be realized by the following technical scheme: LNG fills pipe fitting, including integrally formed inner tube And outer tube, the gap between said inner tube and outer tube form the cavity of annular, which is characterized in that are connected on the outer tube and sky The liquid nitrogen connecting tube of chamber connection, several superconducting coils one are equipped on the outer tube in the axial direction, and the superconducting coil one is logical Cross conducting wire to connect with current controller, be also arranged with annulus on the outer tube, the annulus is equipped with magnet, the annulus it is interior Circumferentially arranged with several hairbrush, the bristle of the hairbrush is resisted against on the outer tube wall of outer tube circle.
This filling pipe fitting is used for the connection of pipeline when filling, by the way that superconducting coil one is arranged, when being passed through liquid nitrogen in cavity Afterwards, the low temperature of liquid nitrogen makes superconducting coil one be in superconducting state, to generate stronger magnetic field, constitutes superconducting coil electromagnetism Iron cooperates with the specific structure of annulus, if condensing frost on pipeline, is controlled by current controller and is axially set along outer tube The superconducting coil one set successively power on/off, to attract the magnet on annulus that annulus is driven to move back and forth along outer tube, so that annulus The hairbrush of inner wall strikes off frost on pipeline, prevents from condensing, and facilitates filling to operate, extends the service life of equipment.
In above-mentioned LNG filling pipe fitting, each superconducting coil one is divided into several columns along the circumferential direction of outer tube, and each Column superconducting coil one is arranged each along the axis direction of outer tube.The circular array in cavity of superconducting coil one arranges, and successively leads to When power-off, the effect for attracting magnet mobile is more preferable.
In above-mentioned LNG filling pipe fitting, the spacing of each adjacent superconducting coil one of same column is equal.To annulus position Control more it is accurate in place.
In above-mentioned LNG filling pipe fitting, the angle of each adjacent superconducting coil one in same circumferential direction is equal.To circle The control of ring position more it is accurate in place.
In above-mentioned LNG filling pipe fitting, the axial line of the superconducting coil one is located at outer tube radially.Attract magnetic The mobile effect of body is more preferable.
In above-mentioned LNG filling pipe fitting, the outer ring of the annulus is circumferentially arranged with several blades.Scrape defrosting Afterwards, it is controlled by current controller and changes size of current, thus also can control each column superconducting coil one successively power on/off, thus So that annulus is rotated around pipeline, so that the blade on annulus, which dries to pipeline, reinforces the flowing of air-flow, pipeline frosting is prevented.
In above-mentioned LNG filling pipe fitting, there is the annular gear edge outwardly protruded, institute on one end outer wall of the outer tube It states annular gear and is equipped with chamber in, be equipped with superconducting coil two in the chamber.When two filling pipe fitting docking, to disk at port Around superconducting coil two be powered, the magnetic force that attracts each other is generated at two-port and two-port is firmly attached together anti-stopping leak Dew.
In above-mentioned LNG filling pipe fitting, said inner tube one end stretches out annular gear edge and forms plug division.Plug division is set Meter, when connection, can play the role of a guide-localization, and make more secured after two pipeline joints, prevent from revealing, Simultaneously after plug division is extend into butt tube, moreover it is possible to play the effect for avoiding flowing backward.
In above-mentioned LNG filling pipe fitting, there is chamfering on the plug division.The design of chamfering is so that grafting is more square Just.
Compared with prior art, this LNG fills pipe fitting and has the advantage that
1, superconducting coil one is set, and the low temperature of liquid nitrogen makes superconducting coil one be in superconducting state, to generate stronger Magnetic field constitutes superconducting coil electromagnet, cooperates with the specific structure of annulus, if condensing frost on pipeline, passes through electric current control Device processed controls the successively power on/off of the superconducting coil one in each column, so that the magnet on annulus be attracted to drive annulus along outer tube to move back It is dynamic, so that the hairbrush of circle ring inner wall strikes off frost on pipeline, prevent from condensing, filling is facilitated to operate.
2, current controller is existing product, can be bought in market, and it is big to control change electric current by current controller It is small, it also can control each column superconducting coil one successively power on/off, so that annulus is rotated around pipeline, so that the leaf on annulus Piece, which dries to pipeline, reinforces the flowing of air-flow, prevents pipeline frosting.
3, it when two filling pipe fitting docking, is powered to the superconducting coil two coiled at port, phase is generated at two-port Two-port is firmly attached together and prevents from revealing by the magnetic force mutually attracted.
Detailed description of the invention
Fig. 1 is this LNG filling pipe joint structure schematic diagram.
Fig. 2 is the cross-sectional view in book LNG filling another direction of pipe fitting.
In figure, 1, inner tube;1a, plug division;2, outer tube;2a, annular gear edge;2a1, chamber;3, cavity;4, superconducting coil One;5, annulus;6, magnet;7, hairbrush;8, blade;9, superconducting coil two;10, liquid nitrogen connecting tube.
Specific embodiment
Following is a specific embodiment of the present invention in conjunction with the accompanying drawings, technical scheme of the present invention will be further described, However, the present invention is not limited to these examples.
As shown in Figs. 1-2, this LNG fills pipe fitting, including integrally formed inner tube 1 and outer tube 2, inner tube 1 and outer tube 2 it Between gap form the cavity 3 of annular, be also connected with the liquid nitrogen connecting tube 10 being connected to cavity 3 on outer tube 2.Along axis on outer tube 2 Line direction is equipped with several superconducting coils 1, and the axial line of superconducting coil 1 is located at outer tube 2 radially, each superconducting coil one 4 are uniformly divided into several columns along the circumferential direction of outer tube 2, and each column superconducting coil 1 is uniformly arranged each along the axis direction of outer tube.
Superconducting coil 1 is connect by conducting wire with current controller, and current controller is existing product, can be purchased in market It buys, the low temperature of liquid nitrogen makes superconducting coil 1 be in superconducting state, to generate stronger magnetic field, constitutes superconducting coil electricity Magnet.
Also be arranged with annulus 5 on outer tube 2, annulus 5 is equipped with magnet 6, the inner ring of annulus 5 circumferentially arranged with several hairbrush 7, Hairbrush 7 can be contacted with the outer tube wall of outer tube 2, and the outer ring of annulus 5 is circumferentially arranged with several blades 8.
If condensing frost on pipeline, the successively on-off of superconducting coil 1 in each column can be controlled by current controller Electricity, to attract the magnet 6 on annulus 5 that annulus 5 is driven to move back and forth along outer tube 2, so that the hairbrush 7 of 5 inner wall of annulus strikes off pipe Road frost prevents from condensing, and filling is facilitated to operate.
Each column superconducting coil 1 successively power on/off can also be controlled by current controller, so that annulus 5 is around pipe Road rotation prevents pipeline frosting so that the blade 8 on annulus 5 dries to pipeline and reinforces the flowing of air-flow.
As shown in Figure 1, having the annular gear outwardly protruded along 2a on one end outer wall of outer tube 2, annular is stretched out in 1 one end of inner tube Gear forms plug division 1a along 2a, has chamfering on the 1a of plug division.Annular gear is equipped with the chamber 2a1 being connected to cavity 3, chamber along 2a Superconducting coil 29 is equipped in the 2a1 of room, when two filling pipe fittings dock, plug division 1a can play the work of a guide-localization With, so that it is more secured after two pipeline joints, while being powered to the superconducting coil 29 coiled at port, it is produced at two-port Two-port is firmly attached together and prevents from revealing by the raw magnetic force to attract each other.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (4)

1.LNG fills pipe fitting, including integrally formed inner tube (1) and outer tube (2), between said inner tube (1) and outer tube (2) Gap forms the cavity (3) of annular, which is characterized in that is connected with the liquid nitrogen connecting tube being connected to cavity (3) on the outer tube (2) (10), several superconducting coils one (4) are equipped on the outer tube (2) in the axial direction, the superconducting coil one (4) passes through conducting wire It connect with current controller, is also arranged with annulus (5) on the outer tube (2), the annulus (5) is equipped with magnet (6), the circle The inner ring of ring (5) is resisted against on the outer tube wall of outer tube (2) circumferentially arranged with several hairbrush (7), the bristle of the hairbrush (7), respectively The superconducting coil one (4) is divided into several columns along the circumferential direction of outer tube (2), and each column superconducting coil one (4) is each along outer tube Axis direction is arranged, and has the annular gear outwardly protruded along (2a), the annular gear edge on one end outer wall of the outer tube (2) It is equipped with chamber (2a1) in (2a), superconducting coil two (9) is equipped in the chamber (2a1);
The outer ring of the annulus (5) is circumferentially arranged with several blades (8);
The successively power on/off of the superconducting coil one (4) in each column is controlled by current controller, to attract the magnet on annulus (5) (6) annulus (5) are driven to move back and forth along outer tube (2) and rotate around outer tube (2).
2. LNG according to claim 1 fills pipe fitting, which is characterized in that annular gear is stretched out in said inner tube (1) one end Plug division (1a) is formed along (2a).
3. LNG according to claim 2 fills pipe fitting, which is characterized in that have chamfering on the plug division (1a).
4. LNG according to claim 3 fills pipe fitting, which is characterized in that the axial line position of the superconducting coil one (4) Radially in outer tube (2).
CN201810586679.5A 2016-11-15 2016-11-15 LNG fills pipe fitting Active CN108975260B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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CN201810586679.5A CN108975260B (en) 2016-11-15 2016-11-15 LNG fills pipe fitting
CN201611005631.8A CN106430073B (en) 2016-11-15 2016-11-15 A kind of LNG filling pipe fitting

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CN107282492B (en) * 2017-08-17 2019-10-15 北京航天发射技术研究所 Cryogenic loading system air bag self-adapting type auto-erasing device and method

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JPS61289608A (en) * 1985-06-17 1986-12-19 Fujikura Ltd Manufacture of compound base superconductive magnet coil
JPH11219814A (en) * 1998-01-29 1999-08-10 Toshiba Corp Superconducting magnet and method for precooling the same
CN1457130A (en) * 2002-05-09 2003-11-19 孙秀明 Electromagnetic activator
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CN106430073B (en) 2018-09-28
CN108975260A (en) 2018-12-11

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