CN112615323B - Dewar expansion adjustable device for high-temperature superconducting cable line - Google Patents
Dewar expansion adjustable device for high-temperature superconducting cable line Download PDFInfo
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- CN112615323B CN112615323B CN202011160964.4A CN202011160964A CN112615323B CN 112615323 B CN112615323 B CN 112615323B CN 202011160964 A CN202011160964 A CN 202011160964A CN 112615323 B CN112615323 B CN 112615323B
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- 230000000712 assembly Effects 0.000 claims description 12
- 238000000429 assembly Methods 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 12
- 238000012544 monitoring process Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 6
- 230000008602 contraction Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 10
- 239000007788 liquid Substances 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/30—Installations of cables or lines on walls, floors or ceilings
- H02G3/34—Installations of cables or lines on walls, floors or ceilings using separate protective tubing
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/03—Cooling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0406—Details thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
- H02G3/0437—Channels
- H02G3/045—Channels provided with perforations or slots permitting introduction or exit of wires
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention relates to a Dewar telescopic adjustable device of a high-temperature superconducting cable line, which comprises: a dewar connecting tube assembly; the two ends of the Dewar connecting pipe assembly are respectively provided with a telescopic Dewar section; and the driving assembly is connected with the telescopic Dewar section and is used for driving the telescopic Dewar section to extend or shorten. The above-mentioned scheme that this application provided, when the relative outer dewar pipe of cable core in the interior dewar pipe can appear vertically retracting, drive flexible dewar section extension or shorten through drive assembly to make the length of whole dewar pipe and the length of the high temperature superconducting cable after retracting corresponding, thereby just can avoid high temperature superconducting cable to take place the phenomenon of buckling in whole dewar pipe.
Description
Technical Field
The invention relates to the technical field of high-temperature superconducting tapes, in particular to a Dewar telescopic adjustable device of a high-temperature superconducting cable line.
Background
At present, a high-temperature superconducting cable is designed by adopting a Dewar structure, an inner Dewar pipe is filled with liquid nitrogen and a cable core is arranged in the high-temperature superconducting cable, when a high-temperature superconducting cable line is laid, the liquid nitrogen is not filled in the inner Dewar pipe, after a cable system is installed, the inner Dewar pipe is blown with hot nitrogen to remove moisture, then is blown with nitrogen to be gradually cooled, and finally is filled with liquid nitrogen, so that the temperature of the cable core is reduced to a liquid nitrogen temperature area.
Because the outer Dewar pipe is in a normal temperature state when contacting with the outside air, the inner Dewar pipe (containing the cable core) is in a liquid nitrogen temperature region, and the difference between the outer Dewar pipe and the inner Dewar pipe is about 200 degrees, the inner Dewar pipe and the cable core can have longitudinal relative retraction and bending phenomena relative to the outer Dewar pipe. When the high-temperature superconducting cable line reaches a certain length, the cable core in the inner Dewar pipe retracts by about three thousandths relative to the longitudinal length of the outer Dewar pipe, so that the operation of the whole cable can be influenced.
Disclosure of Invention
Therefore, it is necessary to provide a dewar expansion and contraction adjustable device for a high temperature superconducting cable line, aiming at the problem that when the existing high temperature superconducting cable line reaches a certain length, a cable core in an inner dewar tube is longitudinally retracted and bent relative to an outer dewar tube.
The invention provides a Dewar telescopic adjustable device of a high-temperature superconducting cable line, which comprises:
a dewar coupling tube assembly;
the two ends of the Dewar connecting pipe assembly are respectively provided with one telescopic Dewar section;
and the driving component is connected with the telescopic Dewar section and is used for driving the telescopic Dewar section to extend or shorten.
According to the Dewar telescopic adjustable device of the high-temperature superconducting cable line, when a cable core in the inner Dewar pipe can longitudinally retract relative to the outer Dewar pipe, the telescopic Dewar section is driven to extend or shorten through the driving assembly, so that the length of the whole Dewar pipe corresponds to the length of the high-temperature superconducting cable after retraction, and the high-temperature superconducting cable can be prevented from being bent in the whole Dewar pipe.
In one embodiment, the driving assembly comprises a driving motor, a transmission shaft seat, a screw rod and a Dewar telescopic push-pull beam assembly;
an output shaft on the driving motor is connected with the lead screw through the transmission shaft seat, the lead screw is connected with a lead screw nut on the Dewar telescopic push-pull beam assembly, and one end of the telescopic Dewar section is fixed on the Dewar telescopic push-pull beam assembly.
In one embodiment, the dewar telescopic push-pull beam assembly further comprises a push-pull beam and a push-pull plate, the push-pull plate is mounted on the push-pull beam, the screw nut is arranged on the push-pull plate, the screw rod penetrates through the push-pull plate and is connected with the screw nut, and one end of the telescopic dewar section is fixed on the push-pull beam.
In one embodiment, the device further comprises two Dewar flange fixing structure assemblies, each Dewar flange fixing structure assembly comprises a second bottom plate, a first flange fixing clamp and a second flange fixing clamp, the second bottom plate is fixedly arranged on the push-pull cross beam, and the first flange fixing clamp and the second flange fixing clamp are relatively fixed on the second bottom plate to form a fixing groove;
a first arc-shaped Dewar connecting pipe on the Dewar connecting pipe assembly is connected with one end of one section of the telescopic Dewar section through the fixing groove on one of the Dewar flange fixing structure assemblies;
and a second arc-shaped Dewar connecting pipe on the Dewar connecting pipe assembly is correspondingly connected with one end of the other section of the telescopic Dewar section through the fixing groove on the other one of the Dewar flange fixing structure assemblies.
In one embodiment, the device further comprises two slide rail support assemblies, wherein each slide rail support assembly comprises a third base plate, a slide rail, a slide plate and a second support platform;
each second supporting platform is provided with one third bottom plate, the sliding rails are arranged on the third bottom plates, sliding grooves in the sliding plates are in sliding fit with the sliding rails, and bottom surfaces of two ends of the push-pull cross beam are correspondingly located on the two sliding plates.
In one embodiment, the device further comprises a conduit supporting frame and a first supporting platform, each telescopic dewar section is fixed on the first supporting platform through the conduit supporting frame, and one end, far away from the push-pull beam, of each telescopic dewar section is fixed on the first supporting platform through the dewar flange fixing structure assembly.
In one embodiment, the dewar connecting pipe assembly comprises a monitoring assembly, a first arc-shaped dewar connecting pipe and a second arc-shaped dewar connecting pipe, wherein the monitoring assembly comprises an outer dewar pipe, an inner dewar pipe, a laser source assembly, a photoelectric sensing assembly, a first transparent assembly and a second transparent assembly;
the first arc-shaped Dewar connecting pipe, the Dewar outer pipe and the second arc-shaped Dewar connecting pipe are sequentially connected, one end, far away from the Dewar outer pipe, of the first arc-shaped Dewar connecting pipe is connected with the telescopic Dewar section, and one end, far away from the Dewar outer pipe, of the second arc-shaped Dewar connecting pipe is connected with the telescopic Dewar section;
both sides of the outer Dewar tube are of an open structure, a first observation port and a second observation port are oppositely arranged on the side wall of the outer Dewar tube, the open sides of the first observation port and the second observation port are respectively provided with the first transparent assembly, the laser source assembly is arranged on the first transparent assembly on the first observation port, and the photoelectric sensing assembly is arranged on the first transparent assembly on the second observation port;
the Dewar inner tube sets up in the inner chamber of Dewar outer tube, just the Dewar inner tube with the cavity that forms between the Dewar outer tube is enclosed construction, be provided with third viewing aperture and fourth viewing aperture on the lateral wall of Dewar inner tube relatively, the position of third viewing aperture with the position of first viewing aperture is corresponding, the position of fourth viewing aperture with the position of second viewing aperture is corresponding, just the third viewing aperture with all be provided with on the opening side of fourth viewing aperture the transparent subassembly of second.
In one embodiment, the first transparent component comprises a second flange, a first glass and a third flange, the second flange is arranged on the opening side of each of the first viewing port and the second viewing port, the first glass is arranged between the second flange and the third flange, and the third flange is connected with the second flange through bolts;
the laser source assembly comprises a laser generator and a first fixing sheet, and the laser generator is fixed on the third flange on the first observation port through the first fixing sheet;
the photoelectric sensing assembly comprises a laser receiver and a second fixing sheet, and the laser receiver is fixed on the third flange on the second observation port through the second fixing sheet.
In one embodiment, the outer dewar pipe comprises a first pipe body and a first flange, both sides of the first pipe body are of an open structure, and one first flange is respectively arranged on both sides of the first pipe body, the first arc-shaped dewar connecting pipe is connected with the first pipe body through the first flange on one side of the first pipe body, the second arc-shaped dewar connecting pipe is connected with the first pipe body through the first flange on the other side of the first pipe body, and the first observation port and the second observation port are oppositely arranged on the side wall of the first pipe body;
the Dewar inner tube is arranged in the first tube body, and two sides of the Dewar inner tube correspond to the first flange connections on two sides of the first tube body.
In one embodiment, the dewar inner pipe comprises a second pipe body, a third pipe body and a fourth pipe body, wherein the third pipe body and the fourth pipe body are respectively arranged at two sides of the second pipe body, and the diameters of the third pipe body and the fourth pipe body are both larger than that of the second pipe body;
the third observation port and the fourth observation port are oppositely arranged on the side wall of the second pipe body;
the third pipe body is connected with one of the first flanges, and the fourth pipe body is connected with the other first flange;
the second transparent component comprises a fourth flange, second glass and a fifth flange, the third observation port and the opening side of the fourth observation port are provided with the fourth flange, the second glass is arranged between the fourth flange and the fifth flange, and the fifth flange is connected with the fourth flange through bolts.
Drawings
Fig. 1 is a schematic structural diagram of a dewar telescopic adjustable device of a high temperature superconducting cable line according to an embodiment of the present invention;
FIG. 2 is a schematic view of the monitoring assembly of FIG. 1;
FIG. 3 is a schematic view of the internal structure of the outer and inner Dewar tubes of FIG. 2;
FIG. 4 is an exploded view of FIG. 1;
FIG. 5 is a schematic view of the laser source assembly of FIG. 4;
FIG. 6 is an assembled view of FIG. 5;
FIG. 7 is a schematic view of the photo-sensor assembly of FIG. 4;
FIG. 8 is an assembled view of FIG. 7;
FIG. 9 is a schematic view of the internal structure of the curved Dewar connecting tube of FIG. 1;
FIG. 10 is a schematic view of FIG. 9 with the cable inserted;
FIG. 11 is a schematic illustration of FIG. 2 in use;
FIG. 12 is a schematic view of the sliding fixed platform of FIG. 1;
FIG. 13 is a schematic view of the support table of FIG. 1;
FIG. 14 is a schematic view of the Dewar flange mounting structure assembly of FIG. 1;
FIG. 15 is a schematic view of the Dewar telescoping push-pull beam assembly of FIG. 1;
FIG. 16 is a schematic view of the push-pull plate of FIG. 15;
FIG. 17 is a schematic view of the first traction ring of FIG. 15;
FIG. 18 is a schematic view of the slide rail support assembly of FIG. 1;
FIG. 19 is a schematic view of the drive assembly of FIG. 1;
FIG. 20 is a schematic view of the telescoping Dewar section of FIG. 1;
FIG. 21 is a schematic view of the internal structure of FIG. 20;
FIG. 22 is a schematic view of the catheter support stand of FIG. 1;
FIG. 23 is a schematic view of the first support platform of FIG. 1;
FIG. 24 is a schematic view of the drive assembly of FIG. 1 coupled to a Dewar telescoping push-pull beam assembly;
FIG. 25 is a schematic view of FIG. 1 with the cable inserted;
fig. 26 is a schematic view showing connection of fig. 25 with a superconducting cable body;
FIG. 27 is a schematic view of the connector of FIG. 26 after connection;
fig. 28 is a schematic view of the superconducting cable termination body of fig. 27 mounted on an adjustable device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
As shown in fig. 1, in an embodiment of the present invention, there is provided a dewar telescopic adjustable device for a high temperature superconducting cable line, including: dewar connecting tube subassembly, flexible Dewar section 601 and drive assembly 500, wherein, Dewar connecting tube subassembly's both ends are provided with a flexible Dewar section 601 respectively, and drive assembly 500 is connected with flexible Dewar section 601 for drive flexible Dewar section 601 extension or shorten.
By adopting the technical scheme, when the cable core in the inner Dewar pipe can retract longitudinally relative to the outer Dewar pipe, the driving assembly drives the telescopic Dewar section to extend or shorten, so that the length of the whole Dewar pipe corresponds to that of the retracted high-temperature superconducting cable, and the high-temperature superconducting cable can be prevented from being bent in the whole Dewar pipe.
In some embodiments, as shown in fig. 19 in combination with fig. 1, the driving assembly 500 of the present application includes a driving motor 5003, a transmission shaft seat 5005, a lead screw 5006 and a dewar telescopic push-pull beam assembly 300, wherein an output shaft of the driving motor 5003 is connected to the lead screw 5006 through the transmission shaft seat 5005, the lead screw 5006 is connected to a lead screw nut 304 of the dewar telescopic push-pull beam assembly 300, and one end of the telescopic dewar segment 601 is fixed to the dewar telescopic push-pull beam assembly 300.
Specifically, as shown in fig. 19 and fig. 24, the driving assembly 500 further includes a support base 5001 and a speed reducer 5004, wherein the driving motor 5003 is fixed on the support base 5001, the driving motor 5003 is connected to the speed reducer 5004, an output shaft of the speed reducer 5004 is connected to a lead screw 5006 through a transmission shaft seat 5005, and the lead screw 5006 is connected to a lead screw nut 304 of the dewar telescopic push-pull beam assembly 300.
In some embodiments, as shown in fig. 15, 16 and 24, the dewar telescopic push-pull beam assembly 300 of the present application further includes a push-pull beam 301 and a push-pull plate 302, wherein the push-pull plate 302 is mounted on the push-pull beam 301 by bolts, the lead screw nut 304 is disposed on the push-pull plate 302, the lead screw 5006 passes through the push-pull plate 302 and is connected with the lead screw nut 304, and one end of the telescopic dewar segment 601 is fixed on the push-pull beam 301.
When the length of whole dewar pipe needs to be adjusted, only need start driving motor 5003 to rotate, driving motor 5003 passes through reduction gear 5004 and drives lead screw 5006, lead screw 5006 is along screw-nut 304 axial motion, thereby lead screw 5006 will drive push-and-pull crossbeam 301 motion, because the one end of flexible dewar section 601 is fixed on push-and-pull crossbeam 301, and flexible dewar section 601 can extend or shorten, consequently, when lead screw 5006 drove push-and-pull crossbeam 301 overall motion, will drive the whole extension or the shortening of flexible dewar section 601.
In some embodiments, in order to facilitate fixing one end of the telescopic dewar section 601 on the push-pull beam 301, as shown in fig. 14 in combination with fig. 1, the dewar telescopic adjustable apparatus for a high temperature superconducting cable line in the present application further includes two dewar flange fixing structure assemblies 201, each dewar flange fixing structure assembly 201 includes a second bottom plate 2011, a first flange fixing clip 2012, and a second flange fixing clip 2013, wherein the second bottom plate 2011 is fixedly disposed on the push-pull beam 301, and the first flange fixing clip 2012 and the second flange fixing clip 2013 are relatively fixed on the second bottom plate 2011 to form a fixing groove 2014; the first arc-shaped Dewar connecting pipe 102 on the Dewar connecting pipe component is connected with one end of one section of telescopic Dewar section 601 through a fixing groove 2014 on one of the Dewar flange fixing structure components 201; the second arc-shaped dewar connecting pipe 103 on the dewar connecting pipe assembly is correspondingly connected with one end of the other section of telescopic dewar section 601 through the fixing groove 2014 on the other section of the dewar flange fixing structure assembly 201.
It should be noted that the structure of the dewar flange fixing structure assembly in the embodiment of the present application is only an example, and in other alternative schemes, other structures, for example, a circular clamp, may be adopted. The present application does not impose any particular limitations on the specific structure of the Dewar flange fixing structural component, as long as the above-described structure can achieve the objectives of the present application.
In some embodiments, to further facilitate the movement of the push-pull beam 301, as shown in fig. 18 in combination with fig. 23 and fig. 1, the dewar telescopic adjustable device of the hts cable line of the present application further includes two rail support assemblies 401, where the rail support assemblies 401 include a third base plate 4011, a rail 4012, a sliding plate 4013, and a second support platform 4014; all be provided with a third bottom plate 4011 on every second supporting platform 4014, slide rail 4012 sets up on third bottom plate 4011, spout and slide rail 4012 sliding fit on the slide 4013, and the bottom surface at push-and-pull crossbeam 301 both ends corresponds to be located two slides 4013.
Specifically, when the driving motor 5003 drives the push-pull beam 301 to move through the screw rod 5006, the bottom surface of the push-pull beam 301 slides on the slide rail 4012 along with the slide plate 4013.
In some embodiments, in order to ensure that telescopic dewar sections 601 are telescopic in a straight direction, as shown in fig. 22 and 23 in combination with fig. 1, the dewar telescopic adjustable device of the present application further includes a conduit support bracket 701 and a first support platform 801, each telescopic dewar section 601 is fixed to the first support platform 801 through the conduit support bracket 701, and an end of each telescopic dewar section 601 far from the push-pull beam 301 is fixed to the first support platform 801 through a dewar flange fixing structure assembly 201.
Specifically, as shown in fig. 20 and fig. 21 in combination with fig. 1, the telescopic dewar section 601 in this application includes a telescopic outer dewar tube 6011, a telescopic inner dewar tube 6012, a connecting flange 6013, and a vacuum valve 6014, where the telescopic inner dewar tube 6012 is located in the telescopic outer dewar tube 6011, the connecting flange 6013 is disposed at the same end of the telescopic outer dewar tube 6011 and the telescopic inner dewar tube 6012, and the vacuum valve 6014 is disposed outside the connecting flange 6013 and is configured to evacuate a space between the telescopic outer dewar tube 6011 and the telescopic inner dewar tube 6012; a plurality of conduit support frames 701 are sleeved on the telescopic outer dewar pipe 6011 on each telescopic dewar section 601, and each conduit support frame 701 is fixed on the first support platform 801.
In some embodiments, to facilitate whether a cable inside a dewar connecting tube assembly is bent, as shown in fig. 1 in combination with fig. 2, 3 and 4, a dewar connecting tube assembly herein includes a monitoring assembly 101, a first arc-shaped dewar connecting tube 102 and a second arc-shaped dewar connecting tube 103, wherein the monitoring assembly 101 includes an outer dewar tube 1011, an inner dewar tube 1012, a laser source assembly 1018, an optoelectronic sensing assembly 1019, a first transparent assembly and a second transparent assembly;
the first arc-shaped Dewar connecting pipe 102, the Dewar outer pipe 1011 and the second arc-shaped Dewar connecting pipe 103 are sequentially connected, one end of the first arc-shaped Dewar connecting pipe 102, which is far away from the Dewar outer pipe 1011, is connected with a telescopic Dewar section 601, and one end of the second arc-shaped Dewar connecting pipe 103, which is far away from the Dewar outer pipe 1011, is connected with the telescopic Dewar section 601;
the two sides of the outer dewar tube 1011 are both of an open structure, the side wall of the outer dewar tube 1011 is provided with a first observation port 10111 and a second observation port 10112, the open sides of the first observation port 10111 and the second observation port 10112 are both provided with a first transparent component, the laser source component 1018 is arranged on the first transparent component on the first observation port 10111, and the photoelectric sensing component 1019 is arranged on the first transparent component on the second observation port 10112;
dewar inner tube 1012 is arranged in the inner chamber of Dewar outer tube 1011, and the cavity that forms between Dewar inner tube 1012 and the Dewar outer tube 1011 is enclosed construction, is provided with third viewing port 101211 and fourth viewing port 101212 on the lateral wall of Dewar inner tube 1012 relatively, and the position of third viewing port 101211 corresponds with the position of first viewing port 10111, and the position of fourth viewing port 101212 corresponds with the position of second viewing port 10112, and all is provided with the transparent subassembly of second on the opening side of third viewing port 101211 and fourth viewing port 101212.
Specifically, as shown in fig. 10 and fig. 11 in combination with fig. 4, when monitoring whether the cable 001 is deflected, when the laser light emitted from the laser source assembly 1018 on the first view port 10111 is not blocked by the cable 001 located in the inner dewar tube, the photoelectric sensing assembly 1019 on the second view port 10112 can receive the laser light signal, the cable 001 located in the inner dewar tube is not deflected, and when the laser light emitted from the laser source assembly 1018 on the first view port 10111 is blocked by the cable 001 located in the inner dewar tube, the photoelectric sensing assembly 1019 on the second view port 10112 cannot receive the laser light signal, and the cable 001 located in the inner dewar tube is deflected.
In some embodiments, as shown in fig. 4, 5 and 7, the first transparent component in the present application includes a second flange 1015, a first glass 1016 and a third flange 1017, the second flange 1015 is disposed on the open sides of the first viewing port 10111 and the second viewing port 10112, the first glass 1016 is disposed between the second flange 1015 and the third flange 1017, and the third flange 1017 is connected to the second flange 1015 by bolts; the laser source assembly 1018 includes a laser generator 10181 and a first fixing plate 10182, the laser generator 10181 is fixed on the third flange 1017 on the first viewing port 10111 by a first fixing plate 10182; the photoelectric sensing assembly 1019 comprises a laser receiver 10191 and a second fixing plate 10192, and the laser receiver 10191 is fixed on a third flange 1017 on the second observation port 10112 through the second fixing plate 10192.
Specifically, as shown in fig. 6, the above laser source assembly 1018 includes two laser generators 10181 and two first fixing plates 10182, wherein each laser generator 10181 is fixed to the corresponding first fixing plate 10182 by bolts, and then the first fixing plate 10182 is fixed to the third flange 1017 on the first viewing port 10111 by bolts, and at this time, the two laser generators 10181 are oppositely disposed.
As shown in fig. 8, the photoelectric sensing assembly 1019 includes two laser receivers 10191 and two second fixing plates 10192, wherein each laser receiver 10191 is fixed on the corresponding second fixing plate 10192 by bolts, and then the second fixing plate 10192 is fixed on the third flange 1017 on the second viewing port 10112 by bolts, and at this time, the two laser receivers 10191 are oppositely disposed.
In some embodiments, as shown in fig. 4 in combination with fig. 9, the outer dewar pipe 1011 of the present application includes a first pipe body and a first flange 1014, both sides of the first pipe body are of an open structure, and one first flange 1014 is respectively disposed on both sides of the first pipe body, the first arc-shaped dewar connecting pipe 102 is connected to the first pipe body through the first flange 1014 on one side of the first pipe body, the second arc-shaped dewar connecting pipe 103 is connected to the first pipe body through the first flange 1014 on the other side of the first pipe body, and the first viewing port 10111 and the second viewing port 10112 are disposed on the side wall of the first pipe body oppositely; the dewar inner pipe 1012 is disposed inside the first pipe body, and both sides of the dewar inner pipe 1012 are connected to the first flanges 1014 on both sides of the first pipe body, respectively.
Further, the dewar inner pipe 1012 includes a second pipe 10121, a third pipe 10122 and a fourth pipe 10123, the third pipe 10122 and the fourth pipe 10123 are respectively disposed on two sides of the second pipe 10121, and the diameters of the third pipe 10122 and the fourth pipe 10123 are greater than the diameter of the second pipe 10121; the third viewing port 101211 and the fourth viewing port 101212 are oppositely disposed on a side wall of the second tube 10121; the third pipe 10122 is connected with one of the first flanges 1014, and the fourth pipe 10123 is connected with the other of the first flanges 1014; the second transparent assembly includes a fourth flange 1020, a second glass 1021, and a fifth flange 1022, the open sides of the third viewing port 101211 and the fourth viewing port 101212 are each provided with the fourth flange 1020, the second glass 1021 is disposed between the fourth flange 1020 and the fifth flange 1022, and the fifth flange 1022 is connected with the fourth flange 1020 through a bolt.
In some embodiments, in order to support the outer dewar tube, as shown in fig. 12 and 13 in combination with fig. 1, the present application further includes a sliding fixing platform 104 and a supporting platform 105, wherein the sliding fixing platform 104 is integrally disposed on the supporting platform 105, the sliding fixing platform 104 includes a first bottom plate 1041, a pulley 1042, a first fixing clip 1043, and a second fixing clip 1044, the pulley 1042 is disposed on a bottom surface of the first bottom plate 1041, the first fixing clip 1043 and the second fixing clip 1044 are relatively fixed on the first bottom plate 1041, and a locking slot 1045 for the outer dewar tube is formed between the first fixing clip 1043 and the second fixing clip 1044. When the outer dewar pipe 1011 is installed, the sliding fixing platform 104 is firstly integrally placed on the supporting platform 105, and then the two ends of the first pipe body on the outer dewar pipe 1011 are correspondingly fixed on the two outer dewar pipe clamping grooves 1045.
In summary, the invention, when in use:
as shown in fig. 1 and 23, firstly, the sliding fixing platform 104 is disposed on the supporting platform 105, the sliding rail supporting component 401 is placed on the second supporting platform 4014, the conduit supporting rack 701 is fixed on the first supporting platform 801, then the push-pull beam 301 is placed on the sliding rail supporting component 401, meanwhile, the screw 5006 on the driving component 500 is connected with the screw nut 304 on the push-pull beam 301 (as shown in fig. 24), the telescopic dewar section 601 is fixed on the conduit supporting rack 701, then the outer dewar pipe 1011 is fixed on the sliding fixing platform 104, one end of the outer dewar pipe 1011 is connected with the first arc dewar connecting pipe 102, the other end of the outer dewar pipe 1011 is connected with the second arc dewar connecting pipe 103, then one end of the first arc dewar connecting pipe 102 far away from the outer dewar pipe 1011 is connected with one of the telescopic dewar sections 601, one end of the second arc dewar connecting pipe 103 far away from the outer dewar pipe 1011 is connected with the other telescopic dewar section 601, meanwhile, one end of each telescopic dewar section 601 facing the outer dewar pipe 1011 is fixed on the push-pull beam 301 through the dewar flange fixing structure assembly 201, one end of each telescopic dewar section 601 far away from the outer dewar pipe 1011 is fixed on the first supporting platform 801 through the dewar flange fixing structure assembly 201, after the process is finished, a vacuum valve 1013 on the outer dewar pipe 1011 is used for vacuumizing between the outer dewar pipe 1011 and the inner dewar pipe 1012, a vacuum valve (not indicated in the figure) on the first arc-shaped dewar connecting pipe 102 is used for vacuumizing between the outer pipe and the inner pipe on the first arc-shaped dewar connecting pipe 102, a vacuum valve (not indicated in the figure) on the second arc-shaped dewar connecting pipe 103 is used for vacuumizing between the outer pipe and the inner pipe on the second arc-shaped dewar connecting pipe 103, and a vacuum valve 6014 on the telescopic dewar section 601 is used for vacuumizing between the telescopic outer dewar pipe 6011 and the telescopic inner dewar pipe 6012;
after the whole device is installed, the manual debugging is firstly carried out to check whether the structure part of the telescopic Dewar section is installed correctly, as shown in fig. 24 in conjunction with fig. 17, the feed screw nut 304 is first removed from the push-pull plate 302, meanwhile, a manual traction hoist is connected between a through hole 3031 on the first traction ring 303 on the push-pull beam 301 and the second traction ring 5002 on the support seat body 5001, the push-pull beam 301 is driven to be far away from or close to the support seat 5001 by tightening and replaying the manual traction block, so that whether the telescopic Dewar section 601 is freely telescopic or not can be detected, if the telescopic dewar section 601 does not slide smoothly relative to the conduit supporting frame 701, readjusting the position of the conduit supporting frame 701 on the first supporting platform 801 until the telescopic dewar section 601 can slide freely, finally installing the screw rod nut 304 on the push-pull plate 302, and simultaneously connecting the screw rod 5006 with the screw rod nut 304;
and (3) performing manual debugging and then performing electric debugging: the driving motor 5003 is controlled to slowly rotate forwards and reversely, so that the screw rod 5006 extends out of the screw rod nut 304, the push-pull cross beam 301 is driven to move, and the working stability of the driving motor 5003 and whether the telescopic Dewar section 601 is freely telescopic or not are checked;
and further carrying out automatic electric regulation and debugging: as shown in fig. 25, when the laser light emitted from the laser source component 1018 on the first view port 10111 is not blocked by the cable 001 located in the inner dewar tube, the photoelectric sensing component 1019 on the second view port 10112 may receive the laser signal, and the cable 001 located in the inner dewar tube is not shrunk and core-shifted, and when the laser light emitted from the laser source component 1018 on the first view port 10111 is blocked by the cable 001 located in the inner dewar tube, the photoelectric sensing component 1019 on the second view port 10112 may not receive the laser signal, and the cable 001 located in the inner dewar tube is shrunk and core-shifted. When core deviation and bending occur, the signal is fed back to the controller, the controller controls the driving motor 5003 to start so as to drive the push-pull beam 301 to move, further the stretching of the telescopic Dewar section 601 is adjusted, and the cable 001 is pulled out after the integral debugging is finished;
as shown in fig. 26 and 27, the cable 001 on the superconducting cable body 002 is passed through the high temperature superconducting cable dewar telescopic adjustable device, and at the same time, the superconducting cable body 002 is installed on the connecting flange 6013 on one end of one of the telescopic dewar sections 601 far from the push-pull beam 301, the cable 001 passed through the high temperature superconducting cable dewar telescopic adjustable device is connected with the superconducting cable terminal body 003, and at the same time, the superconducting cable terminal body 003 is installed on the connecting flange 6013 on one end of the other telescopic dewar section 601 far from the push-pull beam 301, and at this time, the connection of the terminal is completed, as shown in fig. 28.
Application in superconducting cable systems: the superconducting and cable core is a hollow structure, and the liquid nitrogen circulation loop is that liquid nitrogen is injected from the refrigerating system to the superconducting cable core, and returns to the inner Dewar pipe flowing into the superconducting cable at the terminal of the superconducting cable and flows back to the refrigerating system for cooling circulation. When the cable system finishes the dry and hot nitrogen gas dehumidification, the cable system is shifted to start to introduce cold nitrogen gas for gradual cooling, and then the inner Dewar pipe and the cable core are gradually cooled in liquid nitrogen, and the lengths of the inner Dewar pipe and the cable core are gradually retracted at the same time, the laser source assembly 1018 on the first observation port 10111 is used for observation, when the retraction and the bending occur, the controller controls the driving motor 5003 to be started so as to drive the push-pull beam 301 to move, and further the extension and the contraction of the telescopic Dewar section 601 are adjusted, so that the length of the whole Dewar pipe corresponds to the length of the retracted high-temperature superconducting cable, thereby the bending phenomenon of the high-temperature superconducting cable in the whole Dewar pipe can be avoided, when the laser emitted by the laser source assembly 1018 on the first observation port 10111 is not blocked by the cable 001 in the Dewar pipe, the photoelectric sensing assembly 1019 on the second observation port 10112 can receive the laser signal, and the cable 001 in the Dewar pipe does not have the shrinkage and the core deflection, at this time, the drive motor 5003 stops rotating.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be understood as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A Dewar telescopic adjustable device of a high-temperature superconducting cable line is characterized by comprising:
the Dewar connecting pipe assembly comprises a monitoring assembly (101), a first arc Dewar connecting pipe (102) and a second arc Dewar connecting pipe (103), wherein the monitoring assembly (101) comprises an outer Dewar pipe (1011), an inner Dewar pipe (1012), a laser source assembly (1018) and a photoelectric sensing assembly (1019), the inner Dewar pipe (1012) is arranged on the outer Dewar pipe (1011) in a penetrating manner, the laser source assembly (1018) and the photoelectric sensing assembly (1019) are respectively arranged on opening structures on two sides of the outer Dewar pipe (1011), and the first arc Dewar connecting pipe (102), the outer Dewar pipe (1011) and the second arc Dewar connecting pipe (103) are sequentially connected;
the end, far away from the outer Dewar pipe (1011), of the first arc-shaped Dewar connecting pipe (102) is connected with the telescopic Dewar section (601), and the end, far away from the outer Dewar pipe (1011), of the second arc-shaped Dewar connecting pipe (103) is connected with the telescopic Dewar section (601);
the driving assembly (500) is connected with the telescopic Dewar sections (601), and the driving assembly (500) is used for driving the two telescopic Dewar sections (601) to extend or shorten along the same side direction;
when the laser light emitted by the laser source assembly (1018) is not blocked by the cable (001) positioned in the Dewar inner tube (1012), and the photoelectric sensing assembly (1019) can receive laser signals, the cable (001) positioned in the Dewar inner tube (1012) is not subjected to shrinkage core-shifting bending; when the laser emitted by the laser source assembly (1018) is blocked by the cable (001) in the Dewar inner tube (1012), and the photoelectric sensing assembly (1019) cannot receive laser signals, the cable (001) in the Dewar inner tube (1012) is contracted, deflected and bent; the expansion or contraction of the telescopic Dewar section (601) is used for adjusting the degree of contraction, core deviation and bending of the cable (001) in the Dewar inner pipe (1012) so that the length of the whole Dewar pipe corresponds to the length of the contracted cable (001).
2. The dewar telescopic adjustable device of the high temperature superconducting cable line according to claim 1, wherein the driving assembly (500) comprises a driving motor (5003), a transmission shaft seat (5005), a lead screw (5006) and a dewar telescopic push-pull beam assembly (300);
an output shaft on the driving motor (5003) is connected with the screw rod (5006) through the transmission shaft seat (5005), the screw rod (5006) is connected with a screw rod nut (304) on the Dewar telescopic push-pull beam assembly (300), and one end of the telescopic Dewar section (601) is fixed on the Dewar telescopic push-pull beam assembly (300).
3. The Dewar telescopic adjustable device for the HTC cable line according to claim 2, wherein the Dewar telescopic push-pull beam assembly (300) further comprises a push-pull beam (301) and a push-pull plate (302), the push-pull plate (302) is mounted on the push-pull beam (301), the lead screw nut (304) is disposed on the push-pull plate (302), the lead screw (5006) penetrates through the push-pull plate (302) to be connected with the lead screw nut (304), and one end of the telescopic Dewar section (601) is fixed on the push-pull beam (301).
4. The Dewar telescopic adjustable device of the high-temperature superconducting cable line according to claim 3, further comprising two Dewar flange fixing structure assemblies (201), wherein the Dewar flange fixing structure assemblies (201) comprise a second bottom plate (2011), a first flange fixing clamp (2012) and a second flange fixing clamp (2013), the second bottom plate (2011) is fixedly arranged on the push-pull beam (301), and the first flange fixing clamp (2012) and the second flange fixing clamp (2013) are relatively fixed on the second bottom plate (2011) to form a fixing groove (2014);
the first arc-shaped Dewar connecting pipe (102) is connected with one end of one section of the telescopic Dewar section (601) through the fixing groove (2014) on one of the Dewar flange fixing structure assemblies (201);
the second arc-shaped Dewar connecting pipe (103) is correspondingly connected with one end of the telescopic Dewar section (601) at the other section through the fixing groove (2014) on the other Dewar flange fixing structure assembly (201).
5. The Dewar telescopic adjustable device of the HTC cable line as claimed in claim 3 or 4, further comprising two rail support assemblies (401), wherein said rail support assemblies (401) comprise a third base plate (4011), a rail (4012), a sliding plate (4013), and a second support platform (4014);
each second supporting platform (4014) is provided with one third base plate (4011), the sliding rail (4012) is arranged on the third base plate (4011), a sliding groove in the sliding plate (4013) is in sliding fit with the sliding rail (4012), and the bottom surfaces of the two ends of the push-pull beam (301) are correspondingly located on the two sliding plates (4013).
6. The Dewar telescopic adjustable device for the HTC cable line according to claim 4, further comprising a conduit support frame (701) and a first support platform (801), wherein each of said telescopic Dewar sections (601) is fixed to said first support platform (801) by said conduit support frame (701), and wherein an end of each of said telescopic Dewar sections (601) remote from said push-pull beam (301) is fixed to said first support platform (801) by said Dewar flange fixing structure assembly (201).
7. The dewar telescopic adjustable device for the hts cable line according to claim 1, wherein said monitoring assembly (101) further comprises a first transparent assembly and a second transparent assembly;
both sides of the Dewar outer tube (1011) are of an open structure, a first observation port (10111) and a second observation port (10112) are oppositely arranged on the side wall of the Dewar outer tube (1011), the open sides of the first observation port (10111) and the second observation port (10112) are respectively provided with the first transparent component, the laser source component (1018) is arranged on the first transparent component on the first observation port (10111), and the photoelectric sensing component (1019) is arranged on the first transparent component on the second observation port (10112);
dewar inner tube (1012) set up in the inner chamber of Dewar outer tube (1011), just Dewar inner tube (1012) with the cavity that forms between Dewar outer tube (1011) is the enclosed construction, be provided with third viewing aperture (101211) and fourth viewing aperture (101212) on the lateral wall of Dewar inner tube (1012) relatively, the position of third viewing aperture (101211) with the position of first viewing aperture (10111) is corresponding, the position of fourth viewing aperture (101212) with the position of second viewing aperture (10112) is corresponding, just third viewing aperture (101211) with all be provided with on the opening side of fourth viewing aperture (101212) the transparent subassembly of second.
8. The Dewar telescopic adjustable device of the HTC cable line as claimed in claim 7, wherein the first transparent member comprises a second flange (1015), a first glass (1016) and a third flange (1017), the second flange (1015) is disposed on the open sides of the first viewing port (10111) and the second viewing port (10112), the first glass (1016) is disposed between the second flange (1015) and the third flange (1017), and the third flange (1017) is connected with the second flange (1015) through bolts;
the laser source assembly (1018) comprises a laser generator (10181) and a first fixing plate (10182), the laser generator (10181) is fixed on the third flange (1017) on the first viewing port (10111) through the first fixing plate (10182);
the photoelectric sensing assembly (1019) comprises a laser receiver (10191) and a second fixing plate (10192), and the laser receiver (10191) is fixed on the third flange (1017) on the second observation port (10112) through the second fixing plate (10192).
9. The dewar telescopic and adjustable apparatus for the hts cable line according to claim 7, wherein the outer dewar pipe (1011) comprises a first pipe body and a first flange (1014), both sides of the first pipe body are of an open structure, and both sides of the first pipe body are respectively provided with one first flange (1014), the first arc-shaped dewar connecting pipe (102) is connected to the first pipe body through the first flange (1014) on one side of the first pipe body, the second arc-shaped dewar connecting pipe (103) is connected to the first pipe body through the first flange (1014) on the other side of the first pipe body, and the first viewing port (10111) and the second viewing port (10112) are oppositely disposed on a sidewall of the first pipe body;
the Dewar inner pipe (1012) is arranged in the first pipe body, and two sides of the Dewar inner pipe (1012) are correspondingly connected with the first flanges (1014) on two sides of the first pipe body.
10. The dewar telescopic adjustable device of the hts cable line according to claim 9, characterized in that the dewar inner tube (1012) comprises a second tube body (10121), a third tube body (10122) and a fourth tube body (10123), the third tube body (10122) and the fourth tube body (10123) are respectively disposed at both sides of the second tube body (10121), and the diameters of the third tube body (10122) and the fourth tube body (10123) are larger than the diameter of the second tube body (10121);
the third viewing port (101211) and the fourth viewing port (101212) are oppositely disposed on the side wall of the second tube body (10121);
the third pipe body (10122) is connected with one of the first flanges (1014), and the fourth pipe body (10123) is connected with the other of the first flanges (1014);
the second transparent assembly includes a fourth flange (1020), a second glass (1021), and a fifth flange (1022), the fourth flange (1020) is disposed on the open side of the third viewing port (101211) and the fourth viewing port (101212), the second glass (1021) is disposed between the fourth flange (1020) and the fifth flange (1022), and the fifth flange (1022) is connected to the fourth flange (1020) by bolts.
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| CN202011160964.4A CN112615323B (en) | 2020-10-27 | 2020-10-27 | Dewar expansion adjustable device for high-temperature superconducting cable line |
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| CN114094521B (en) * | 2021-10-27 | 2024-02-20 | 深圳供电局有限公司 | Superconducting cable Dewar connecting structure and superconducting cable connecting device |
| CN114843028B (en) * | 2022-04-11 | 2023-07-07 | 深圳供电局有限公司 | Dewar shrinking device for superconducting cable |
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