CN113507086B - Passive lossless three-phase anti-icing and de-icing control equipment for strain tower - Google Patents

Passive lossless three-phase anti-icing and de-icing control equipment for strain tower Download PDF

Info

Publication number
CN113507086B
CN113507086B CN202110797479.6A CN202110797479A CN113507086B CN 113507086 B CN113507086 B CN 113507086B CN 202110797479 A CN202110797479 A CN 202110797479A CN 113507086 B CN113507086 B CN 113507086B
Authority
CN
China
Prior art keywords
interface
steel core
phase
temperature sensing
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110797479.6A
Other languages
Chinese (zh)
Other versions
CN113507086A (en
Inventor
莫思特
刘首文
李碧雄
刘天琪
苗虹
曾成碧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan University
State Grid Hubei Electric Power Co Ltd
Original Assignee
Sichuan University
State Grid Hubei Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sichuan University, State Grid Hubei Electric Power Co Ltd filed Critical Sichuan University
Priority to CN202110797479.6A priority Critical patent/CN113507086B/en
Publication of CN113507086A publication Critical patent/CN113507086A/en
Application granted granted Critical
Publication of CN113507086B publication Critical patent/CN113507086B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/16—Devices for removing snow or ice from lines or cables

Abstract

The utility model relates to the technical field of power transmission lines, in particular to a passive lossless three-phase anti-icing and de-icing control device for a tension tower, which comprises a temperature sensing module, an inductive switch module, a protective resistor, a protective capacitor and a change-over switch; controlling by three phases, wherein each phase is externally provided with three interfaces which are respectively input steel core interfaces; inputting an aluminum wire interface; an output interface; the control equipment is connected with the power transmission line through an external interface: the temperature sensing module is used for sensing temperature change and controlling the slide bar to drive components inside the sensing switch assembly to slide. Therefore, the on-off of the self-made hot wire aluminum wire loop is adjusted. For the stock power transmission line, the strain tower can be directly used without being reinforced; the transmission line can be automatically regulated in temperature without additional control; sensing and controlling in the temperature adjusting process are both in a passive mode; the manufacturing cost is low; simple structure, no extra power loss and high reliability. Meanwhile, three phases act simultaneously, and unbalance of three-phase anti-icing and de-icing power is avoided.

Description

Passive lossless three-phase anti-icing and de-icing control equipment for strain tower
Technical Field
The utility model relates to the technical field of power transmission lines, in particular to a passive lossless three-phase anti-icing and de-icing control device for a strain tower.
Background
In power transmission, the tension tower bears the weight of the power transmission line and also bears the tension of the power transmission line. In cold weather, the power transmission line is easy to freeze, so that the gravity and the tension of the power transmission line are increased, and the conditions such as damage of the strain tower and the like can be caused.
Patent No. ZL201811489790.9 discloses a lossless single-phase shunt between lines and its design and control method. The shunt consists of an on-load tap-changer, a shunt transformer, a voltage-dividing transformer, a control motor, a microprocessor, two change-over switches and a temperature sensing unit and is arranged between two wires. The input end of the shunt is connected with the inner conductor close to one end of the electric load and the first selector switch; the output end is connected with the inner conductor, the outer conductor and the second change-over switch of the next section close to the sending end power supply. The shunt transformer and the bleeder transformer adopt step-up transformers, and the shunt transformer is divided into a double-winding shunt transformer and an auto-coupling shunt transformer according to different structures; the voltage dividing transformer is divided into a double-winding voltage dividing transformer and an auto voltage dividing transformer. By calculating the turn ratio of the transformer coil, the conductor current just meets the requirement of anti-icing and de-icing under the control of the microprocessor on the change-over switch, the current is accurately controlled, and the anti-icing and de-icing are accurately controlled. The shunt can work under the dual modes of normal power transmission and ice prevention and melting, and is simple and reliable to operate. However, it has the following problems:
(1) the on-load tap-changer has a complex structure, high price and inconvenient control, and is inconvenient for the use of the strain tower;
(2) the voltage borne by the voltage-dividing transformer is too high, so that the manufacturing cost is high;
(3) the whole weight is heavier, the requirement on the mechanical property of the installed tension tower is high, and some tension towers are required to be reinforced for the stock power transmission line.
Patent No. 201921929880.5 provides a passive intelligent ice-melting control device, which is composed of a passive temperature sensor, a passive temperature control resistor and an ice-melting control switch. The control equipment is arranged on the self-made heat conducting wire, and two ends of the self-made heat conducting wire are respectively connected with the traditional power transmission line. The passive temperature sensors are two in the same structure and are tightly wrapped outside the self-made heat conducting wire. The sensing main body is sector cylindrical, and forms a sector cylindrical closed space with the mounting plate A, B, a stranded wire contact surface and an atmosphere contact surface, and temperature control liquid is filled in the sealed cavity. The passive temperature control resistor comprises a resistance wire, a contact electric brush, a conductive rod and an insulating rod. The resistance shell is cylindrical and is communicated with the temperature control liquid closed space through a connecting pipe interface. The intelligent power transmission line deicing system solves the problem that power is difficult to get by intelligent deicing equipment in the using process, changes the change of resistance through sensing the temperature change of the main body, automatically starts deicing of the power transmission line, automatically stops deicing after sensing the end of deicing, and keeps the temperature of the power transmission line in a proper range. It has the following problems:
(1) the passive temperature sensor and the passive temperature control resistor are designed separately, so that the reliability of the equipment is influenced;
(2) the resistor emits larger heat, and better heat dissipation is needed in the using process; and this heat is attributed to the losses,
disclosure of Invention
The utility model aims to provide a passive lossless three-phase anti-icing and de-icing control device for a tension tower, which can avoid three-phase de-icing imbalance caused by non-synchronization of three-phase switches.
The embodiment of the utility model is realized by the following technical scheme:
a passive lossless three-phase anti-icing and de-icing control device for a tension tower is composed of a temperature sensing module, a sensing switch module, a protection resistor, a protection capacitor and a change-over switch; three induction switch modules are arranged corresponding to three phases; each induction switch module is provided with a protection resistor, a protection capacitor and a change-over switch in a matching way; the three induction switch modules are all connected to the temperature induction module;
the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is provided with three interfaces outside each phase, wherein the three interfaces are respectively input steel core interfaces; inputting an aluminum wire interface; an output interface; the input steel core interface consists of an A-phase input steel core interface, a B-phase input steel core interface and a C-phase input steel core interface; the input aluminum wire interface consists of an A-phase input aluminum wire interface, a B-phase input aluminum wire interface and a C-phase input aluminum wire interface; the output interface consists of an A-phase output interface, a B-phase output interface and a C-phase output interface; the control equipment is connected with the power transmission line through an external interface:
the temperature sensing module has three external connection interfaces: each group of external connection interfaces comprises a steel core side interface and a steel core output interface; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface, a B-phase steel core side interface and a C-phase steel core side interface; the steel core output interface consists of an A-phase steel core output interface, a B-phase steel core output interface and a C-phase steel core output interface;
the A-phase steel core side interface is in short circuit connection with the A-phase input steel core interface;
the B-phase steel core side interface is in short circuit connection with the B-phase input steel core interface;
the C-phase steel core side interface is in short circuit connection with the C-phase input steel core interface;
the A-phase steel core output interface is in short circuit connection with the A-phase output interface;
the B-phase steel core output interface is in short-circuit connection with the B-phase output interface;
the C-phase steel core output interface is in short circuit connection with the C-phase output interface;
the inductive switch module has two external interfaces: the induction switch comprises an aluminum wire side interface, an induction switch interface, a three-phase alternating current circuit, three induction switch modules and a control module, wherein each induction switch module corresponds to one induction switch module, and each induction switch module is provided with the aluminum wire side interface and the induction switch interface, so that the induction switch module is provided with an A-phase aluminum wire side interface, a B-phase aluminum wire side interface, a C-phase aluminum wire side interface, an A-phase induction switch interface, a B-phase induction switch interface and a C-phase induction switch interface;
the A phase aluminum wire side interface is in short circuit connection with the A phase input aluminum wire interface;
the B-phase aluminum wire side interface is in short circuit connection with the B-phase input aluminum wire interface;
the C-phase aluminum wire side interface is in short circuit connection with the C-phase input aluminum wire interface;
the A-phase inductive switch interface is in short circuit connection with the A-phase output interface;
the B-phase inductive switch interface is in short-circuit connection with the B-phase output interface;
the C-phase inductive switch interface is in short-circuit connection with the C-phase output interface;
after the protection resistor and the protection capacitor are connected with the change-over switch in parallel, one end of the protection resistor and the protection capacitor is in short-circuit connection with the output interface; the other end is in short circuit connection with the input aluminum wire interface;
the temperature sensing module consists of a temperature sensing shell, a right bottom cover, a left bottom cover, a temperature sensing steel core, a temperature sensing slide rod seat and a slide rod guide pipe; a steel core side interface and a steel core output interface are arranged on the temperature sensing module;
the temperature sensing shell and the right bottom cover form a sensing shell component;
the temperature sensing steel core, the inner fixing point, the steel core output interface and the steel core side interface form a temperature sensing steel core assembly;
the temperature sensing slide bar seat and the slide bar guide pipe form a temperature sensing slide bar seat component;
the slide bar and the temperature sensing tray form a slide bar assembly;
the inductive switch component consists of a controller shell, a shell base, a controller inner container and a control step plate.
Furthermore, in the temperature sensing module, the temperature sensing shell is of a tubular structure and is made of a material with good insulating property, and mounting screw holes are formed in two end faces of the tubular structure;
the temperature sensing shell is provided with an insulator hook along the length direction; the insulator hook is cylindrical, and one half of the insulator hook is embedded into the pipe wall of the tubular shell and forms a whole with the pipe wall of the tubular shell; the other half of the insulator hook is exposed out of the outer side of the tubular shell, and a circular insulator mounting hole is formed in the exposed part and used for mounting and fastening with an insulator;
the left bottom cover is matched with an installation screw hole on the left side of the temperature sensing shell through a screw to be fixed on the left side of the temperature sensing shell; the right bottom cover is matched with the mounting screw hole on the right side of the temperature sensing shell through a screw to be fixed on the right side of the temperature sensing shell; a sealing gasket is arranged between the left bottom cover and the temperature sensing shell, so that the left bottom cover and the temperature sensing shell are sealed; a sealing gasket is arranged between the right bottom cover (170) and the temperature sensing shell (110) so that the right bottom cover (170) is sealed with the temperature sensing shell (110); liquid with positive volume expansion coefficient and good insulating property is filled in a space formed by the temperature sensing shell and the left bottom cover and the right bottom cover;
the left bottom cover is disc-shaped and is provided with three temperature sensing component mounting openings and a plurality of screw fixing holes; the screw fixing hole corresponds to the mounting screw hole;
a mounting screw of the left bottom cover penetrates through the screw fixing hole and is fastened and meshed with the mounting screw hole;
the temperature sensing assembly mounting opening is a circular opening, and a temperature sensing assembly mounting internal thread is arranged on the side wall.
Furthermore, the temperature sensing shell is provided with three steel core output mounting holes and three steel core side mounting holes; the diameters of the steel core output mounting hole and the steel core side mounting hole are slightly larger than the diameter of the temperature sensing steel core, so that the temperature sensing steel core can penetrate through the steel core; the temperature sensing steel core is arranged on the pipe wall of the tubular shell through the steel core output mounting hole and the steel core side mounting hole, and the inside and the outside of the temperature sensing steel core are kept sealed by adopting sealing gaskets; the diameter of the temperature sensing steel core is the same as that of the steel core of the self-made heat conducting wire, the middle section is a straight line, the two ends are external connecting sections, and the external connecting sections form a degree with the middle section; the ends of the external connecting sections at the two ends are provided with steel core interface threads; the steel core interface thread is an external thread and is used for being stranded with connecting threads in the steel core output interface and the steel core side interface; the temperature induction steel core and the self-made heat conducting wire are made of the same material and have the same diameter; the external connecting sections at two ends of the temperature sensing steel core penetrate through the steel core outlet, and the steel core interface threads at the two ends are respectively meshed with the steel core output interface and the mounting internal threads of the steel core side interface; the inner fixing point is a disc welded at one side of the outer connecting section close to the middle section; the radius of the disc of the inner fixed point is larger than that of the steel core, and the inner fixed point is tightly attached to the inner wall of the temperature sensing shell during installation;
the steel core output interface and the steel core side interface have the same structure; the steel core output interface and the steel core side interface are formed by welding a short circuit connecting interface and a hexagon nut, and the short circuit connecting interface and the hexagon nut are made of metal materials; the short circuit connection interface is annular; the hexagon nut is in a regular hexagon column shape, and the middle of the hexagon nut is provided with an internal thread; the mounting internal thread is matched with the steel core interface thread and is tightly meshed.
The steel core side interface and the steel core output interface are divided into three groups; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface, a B-phase steel core side interface and a C-phase steel core side interface; the steel core output interface consists of an A-phase steel core output interface, a B-phase steel core output interface and a C-phase steel core output interface.
Furthermore, the temperature sensing slide bar seat comprises three parts, namely a sensing switch assembly connecting thread, a slide bar seat body and a sensing shell connecting thread; the induction resistance connecting threads, the sliding rod seat body and the induction shell connecting threads are coaxially connected into a whole, the axis is a columnar hollow body, and the diameter of the columnar hollow body is the same as the inner diameter of the sliding rod guide pipe; the connecting thread of the induction resistor and the connecting thread of the induction shell have the same major diameter; the diameter of the slide bar seat body is larger than the major diameter of the connecting thread of the induction shell; the connecting thread of the inductive switch component and the connecting thread of the inductive shell are external threads; the major diameter of the connecting thread of the induction shell is the same as that of the internal thread of the temperature sensing assembly, the connecting thread of the induction shell is precisely occluded with the internal thread of the temperature sensing assembly, and a sealing ring is added in the middle of occlusion to seal the two threads; the major diameter of the connecting thread of the inductive switch component is the same as that of the right thread of the inductive switch component, and the connecting thread of the inductive switch component is tightly meshed with the right thread of the inductive switch component;
the slide bar conduit is of a tubular structure, and the inner diameter of the slide bar conduit is slightly larger than the outer diameter of the slide bar; the hollow cavity in the middle of the slide bar conduit is the same as the axis of the columnar hollow body of the temperature sensing slide bar seat, and the inner diameter of the hollow cavity is the same, so that the hollow cavity and the columnar hollow body form a whole, and the whole is called a telescopic chute; the sliding rod is arranged in the telescopic sliding chute and can slide in the telescopic sliding chute; a guide pipe sealing groove is formed in the left side of the slide rod guide pipe; a sealing ring is added in the middle of the sealing groove of the guide pipe, so that when the slide rod moves left and right in the slide rod guide pipe, the navigation sliding grooves at the two ends of the sealing ring are kept sealed;
furthermore, in the sliding rod assembly, the sliding rod is cylindrical, the outer diameter of the sliding rod is slightly smaller than the inner diameter of the sliding rod guide pipe, the sliding rod can slide left and right in the sliding rod guide pipe and penetrate through the sealing ring in the middle of the sealing groove of the guide pipe, and therefore the spaces on the left side and the right side of the sealing ring in the sliding rod guide pipe are kept sealed during sliding;
the temperature sensing tray is disc-shaped and is vertical to the sliding rod, and the center of the sliding rod passes through the center of the temperature sensing tray; the temperature sensing tray is provided with a plurality of step mounting holes; the temperature sensing tray and the sliding rod are made of engineering plastics and are molded into a whole by a die pressing process.
Further, in the inductive switch assembly, the controller housing is tubular with a certain thickness; the side wall of the aluminum wire side interface is provided with an aluminum wire side interface mounting hole for mounting an aluminum wire side interface; the aluminum wire side interface is made of metal material; the left side wall of the controller shell is provided with two normal latch mounting holes which are cylindrical, and the axes of the two normal latch mounting holes are on the same plane and vertical to the tubular axis of the controller shell; each normal latch mounting hole is provided with a normal latch and a normal spring; the normal latch is arranged on the inner side, the normal spring is arranged on the outer side, the normal spring is sealed on the outer side of the controller shell, and the normal latch is exposed out of the inner side of the controller shell under the action of the normal spring; two ice melting latch mounting holes are arranged on the right sides of the two normal latch mounting holes, the two ice melting latch mounting holes are cylindrical, the axes of the two ice melting latch mounting holes and the axes of the two normal latch mounting holes are on the same plane with the tubular axis of the controller shell, and the axes of the two ice melting latch mounting holes are vertical to the tubular axis of the controller shell; the ice melting lock bolt and the ice melting spring are arranged in each ice melting lock bolt mounting hole, the ice melting lock bolt is arranged on the inner side, the ice melting spring is arranged on the outer side, the ice melting spring is sealed on the outer side of the controller shell, and the ice melting lock bolt is exposed out of the inner side of the controller shell under the action of the ice melting spring;
the left side surface of the controller shell is provided with a plurality of shell base mounting holes; the right side of the controller shell is provided with a right side thread of the inductive switch module on the tubular inner wall; the right side thread of the induction switch module is an internal thread, the major diameter of the right side thread is the same as that of the connecting thread of the induction switch module, and the right side thread is tightly meshed with the connecting thread of the induction switch module;
two step control plate guide grooves are arranged on the inner side of the controller shell and are positioned on a plane formed by the axes of the two normal state lock latch mounting holes and the axes of the two ice melting lock latch mounting holes;
the shell base is made into a disc shape by metal materials, and four controller shell mounting holes are respectively arranged on the upper edge of the shell base; the controller shell mounting holes correspond to the shell base mounting holes one by one;
the inductive switch interface is formed by welding a switch side insulator connecting interface, an inductive switch short circuit interface and a hexagon nut, and the switch side insulator connecting interface, the inductive switch short circuit interface and the hexagon nut are all made of metal materials; the switch side insulator connecting interface and the inductive switch short circuit interface are annular; the hexagonal nut is in a regular hexagon column shape, and an internal thread is arranged in the middle of the hexagonal nut; the mounting internal thread is matched with the mounting screw thread, the mounting screw thread penetrates through the mounting hole of the inductive switch interface, the inductive switch interface is mounted on the base of the shell, and the inductive switch interface is arranged on the outer side; the switch side insulator connecting interface is used for connecting with the insulator, and the induction switch short circuit interface is used for short circuit connection with a lead which is in short circuit connection with the induction switch interface;
one side of the short circuit spring is welded in the middle of the shell base, and the other side of the short circuit spring is connected with the left end short circuit plate; the left end short circuit plate is a metal disc, the diameter of the metal disc is smaller than the inner diameter of the shell of the controller, and the left end short circuit plate is in short circuit connection with the inductive switch interface through a short circuit connecting line A;
the controller liner comprises a liner left end cover plate, a liner main body and a liner right end cover plate which are all made of metal materials; and the short-circuit connecting wire B is connected with the controller inner container and the aluminum wire side interface.
The inner container main body is tubular with a certain thickness; the right side of the pipe wall is provided with an inner container right end mounting hole for mounting an inner container right end cover plate, and the left side is provided with an inner container left end mounting hole for mounting an inner container left end cover plate; the two sides of the pipe wall are transversely provided with inner container guide grooves, and the width of each inner container guide groove is smaller than the diameter of the normal lock bolt and the ice melting lock bolt; a liner lock hole is arranged at a certain part of the liner guide groove; the inner container lock hole is cylindrical, and the diameter of the inner container lock hole is larger than that of the normal lock latch and the ice melting lock latch; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane with the ice melting lock latch mounting hole and the normal lock latch mounting hole of the controller shell;
the left end cover plate is disc-shaped and is provided with a liner left cover plate mounting screw hole, the left cover plate mounting screw hole is in one-to-one correspondence with the liner left end mounting hole, and a mounting screw penetrates through the liner left cover plate mounting screw hole and is meshed with the liner left end mounting hole in a threaded manner to fasten the left end cover plate to the liner main body;
the right end cover plate is disc-shaped and is provided with a liner right cover plate mounting screw hole, the right cover plate mounting screw hole is in one-to-one correspondence with the liner right end mounting hole, and a mounting screw passes through the liner right cover plate mounting screw hole and is meshed with the liner right end mounting hole in a threaded manner to fasten the right end cover plate to the liner main body;
a through hole of a slide rod of the right end cover plate of the inner container is formed in the middle of the right end cover plate, and the through hole of the slide rod of the right end cover plate of the inner container is circular, and the diameter of the through hole is slightly larger than that of the slide rod; the slide bar can pass through a slide bar through hole of a cover plate at the right end of the inner container;
the control step plate consists of a left side step plate, a right side step plate, a lower end step control plate and an upper end step control plate;
the left side step plate and the right side step plate are circular, two step lower end fastening holes and two step upper end fastening holes are formed in the two sides of the left side step plate and the right side step plate respectively, the step lower end fastening holes and the step upper end fastening holes are arranged on the same straight line, and the straight line passes through the circle center of the left side step plate;
the left side step plate is fastened on the left side of the lower end step control plate and the upper end step control plate by control plate mounting screws, and the right side step plate is fastened on the right side of the lower end step control plate and the upper end step control plate by control plate mounting screws; the lower end step control plate and the upper end step control plate are arranged on the same plane symmetrically; the left side step plate and the right side step plate are provided with four tray mounting holes which correspond to the four step mounting holes of the temperature sensing tray one by one;
the upper end step control board is a plate-shaped cuboid with a notch at the upper end, the upper end is called as an outer right convex edge from right to left, an outer concave edge and an outer left convex edge. The outer concave edge is concave inwards; the left side of the control plate is provided with two left control plate mounting holes, the left control plate mounting holes correspond to the step upper end fastening holes of the left side step plate and are used for fastening the upper end step control plate and the left side step control plate; two control plate right mounting holes are formed in the right side, correspond to the step upper end fastening holes of the right step plate and are used for fastening the right step control plate and the upper end step control plate; the right inclined side face is a transition side face between the outer side right convex edge and the outer side concave edge and gradually inclines from top to bottom from right to left, and the left inclined side face is a transition side face between the outer side concave edge and the outer side left convex edge and gradually inclines from top to bottom from left to right;
the lower end step control plate and the upper end step control plate are symmetrically distributed on the axis of the controller shell; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane; after the control step plate is installed, the top end of the upper end step control plate and the bottom end of the lower end step control plate penetrate through the inner container guide groove and are embedded into the middle of the step control plate guide groove; the guide groove of the step control plate is used for limiting and controlling the sliding track of the step control plate;
the temperature sensing tray is arranged on the right side of the right step plate and is fastened with the right step plate into a whole; the sliding rod is arranged on the right side of the temperature sensing tray, penetrates through a through hole of the sliding rod of the cover plate at the right end of the inner container and is arranged in the middle of the telescopic chute;
short circuit side springs are arranged on the right side of the left end cover plate and the left side of the left step plate; two ends of the short circuit side spring are respectively fastened with the left end cover plate and the left side step plate;
the right side of the temperature sensing tray and the left side of the right end cover plate are provided with sensing side springs; two ends of the induction side spring are respectively fastened with the temperature induction tray and the right end cover plate.
Further, when the tension tower is used and installed, insulators in the vertical direction of the horizontal insulator are respectively installed on two sides of a cross arm of the tension tower of the power transmission line; installing tension-resistant clamps on the other side of the insulator in the horizontal direction, fixing the steel cores of the wires on the left side and the right side by using the tension-resistant clamps, and fixing the tension-resistant clamps on the cross arms by using the insulator;
assuming that power is delivered from the right side to the left side; the right self-made heat conductor inner conductor steel core and the left self-made heat conductor inner conductor steel core are respectively and fixedly connected to the right tension-resistant clamp and the left tension-resistant clamp; the right self-made heat conducting wire inner conductor steel core is respectively connected with the A phase input steel core interface, the B phase input steel core interface and the C phase input steel core interface in a short circuit way; the aluminum stranded wires of the outer conductor of the self-made heat conductor on the right side are respectively in short circuit connection with the phase A input aluminum wire interface, the phase B input aluminum wire interface and the phase C input aluminum wire interface; after the steel core of the inner conductor of the self-made heat conducting wire on the left side is in short circuit connection with the aluminum stranded wire of the outer conductor of the self-made heat conducting wire, the steel core and the output interface are respectively in short circuit connection by an A-phase output interface, a B-phase output interface and a C-phase output interface according to phases; the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is fixed on a cross arm of the tension tower of the power transmission line through a vertical insulator.
Furthermore, the length of a self-made heat conducting wire between two strain towers provided with the device is represented by L; the inner conductor outer channel, denoted Dn; inner conductor resistivity, denoted by An;
all units are metric units: length unit: rice (m); time unit: seconds (sec), mass unit: kilograms (kg), temperature units: kelvin (K);
Figure GDA0003638285920000061
the technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
(1) the whole weight is light, and the strain tower can be directly used without being reinforced for the stock power transmission line;
(2) the automatic temperature adjustment of the power transmission line can be realized without additional control; the sensing and the control of the temperature adjusting process are both in a passive mode;
(3) the manufacturing cost is low;
(4) the structure is simple, and the reliability in the use process is high;
(5) and the three-phase switches are synchronously operated, so that three-phase imbalance caused by non-synchronization of the three-phase switches is avoided.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the control device provided by the present invention.
Fig. 2 is a schematic diagram of a temperature sensing module.
Fig. 3 is a schematic structural diagram of a temperature sensing housing.
Fig. 4 is a schematic view of the temperature-sensing case in an unfolded configuration.
Fig. 5 is a schematic view of the installation of the insulator hanger and the temperature sensing housing.
Fig. 6 is a schematic view of the installation of the temperature sensing steel core and the temperature sensing outer shell.
Fig. 7 is a schematic view of the left bottom cover.
FIG. 8 is a schematic view of a temperature sensing component mounting port.
Fig. 9 is a schematic view of a temperature sensitive steel core.
Fig. 10 is a schematic sectional structure view of the steel core output interface 104 and the steel core side interface 100.
Fig. 11 is a frame diagram of an inductive switch module.
Figure 12 is a cross-sectional view of the slide rod shoe assembly.
FIG. 13 is a schematic view of a temperature sensing tray and slide bar connection.
Fig. 14 is a schematic view of a temperature sensing tray.
Fig. 15 is a schematic structural view of an inductive switch assembly.
Fig. 16 is a schematic diagram of a controller housing.
FIG. 17 is a schematic view of a stepped control plate guide channel.
Fig. 18 is a schematic view of a housing base.
Fig. 19 is a schematic diagram of an inductive switch interface.
Fig. 20 is a schematic diagram of the left-end short-circuit board and the inductive switch interface.
Fig. 21 is a front view of the controller bladder.
Fig. 22 is a schematic structural view of the controller inner container.
Figure 23 is a schematic view of the liner left end cover plate.
Fig. 24 is a schematic view of the right end cover plate of the inner container.
Fig. 25 is a front view of the control step plate.
Fig. 26 is a left side view of the control step plate.
Fig. 27 is a schematic view of the left and right step plates.
Fig. 28 is a schematic view of the upper end step control plate.
Fig. 29 is a schematic view of the control device installation and use.
Icon: an 1A A-phase input steel core interface, a 1B B-phase input steel core interface, a 1C C-phase input steel core interface, a 2A A-phase input aluminum wire interface, a 2B B-phase input aluminum wire interface, a 2C C-phase input aluminum wire interface, a 3A A-phase output interface, a 3B B-phase output interface, a 3C C-phase output interface, a 100A A-phase steel core side interface, a 100B B-phase steel core side interface, a 100C C-phase steel core side interface, a 104A A-phase steel core output interface, a 104B B-phase output interface, a 104C C-phase steel core output interface, a 20A A-phase inductive switch module, a 20B B-phase inductive switch module, a 20C C-phase inductive switch module, a 40 protection resistor, a 50 protection capacitor, a 60 switch, a 10-temperature inductive module, a 170 right-side bottom cover, a 161A, 161B, 161C-temperature inductive component mounting ports, 103 temperature sensing steel core, 160 left side bottom cover, 110 temperature sensing outer shell, 200 aluminum wire side interface, 201 temperature sensing slide bar seat, 202 slide bar guide tube, 203 slide bar, 450 temperature sensing tray, 300 sensing switch interface, 302 outer shell base, 154w, 154x, 154y, 154z mounting screw hole, 153w, 153x, 153y, 153z insulator hook, 155w, 155x, 155y, 155z insulator mounting hole, 162w, 162x, 162y, 162z screw fixing hole, 154w, 154x, 154y, 154z mounting screw hole, 165w, 165x temperature sensing component mounting internal thread, 310-1, 310-2 sensing switch component right side thread, 215 sensing outer shell connecting thread, 131w, 131x internal fixing point, 157w, 157x, 157y, 157z, 133w, 133x steel core interface thread, 204 steel core side interface; 144w, 144x external connection section, 145 mounting internal thread, 146 hex nut, 147 short circuit connection interface, 211a1, 211a2, 211b1, 211b2, 211c1, 211c2 conduit seal groove, 214a, 214b induction switch assembly connection thread, 215a, 215b induction housing connection thread, 221a, 221b slide bar seat body; 222 telescopic sliding chute, 601 cross arm, 603a1, 603a2, 603B1, 603B2, 603c1, 603c2 horizontal insulator, 603w, 603x, 603y, 603z vertical insulator, 604a1, 604B1, 604c1, 604a2, 604B2, 604c tension-resistant clamp, 605a1, 605B1, 605c1 right side steel core, 605a2, 605B2, 605c2 left side steel core, 606a1, 606B1, 606c1 right side insulated heat-conducting material, 606a2, 606B2, 606c2 left side insulated heat-conducting material, 607a1, 607B1, 607c1 right side aluminum stranded wire, 607a2, 607B2, 607c2 left side aluminum stranded wire, 560 controller shell, 302 base 563 controller, 569 control connecting wire board, inner container, connecting wire 300B, 660 a short circuit board, 451, short circuit induction switch mounting hole, 451-451, short circuit induction switch mounting hole 451-451, 451-3 short circuit induction hole 451-451, short circuit induction switch mounting hole 451, short circuit induction switch 451, 665-1, 665-2 normal state bolt mounting holes, 564-1, 564-2 normal state bolts, 565-1, 565-2 normal state springs, 664-1, 664-2 ice melting bolt mounting holes, 666-1, 666-2, 666-3, 666-4 casing base mounting holes, 312 switch side insulator connection interfaces, 313 induction switch short circuit interfaces, 311 and hexagon nut, 670 induction switch interface mounting holes, 721 liner left end cover plate, 722 liner body, 723 liner right end cover plate, 673-1, 673-2, 673-3, 673-4 liner right end mounting holes, 674-1, 674-2, 674-3, 674-4 liner left end mounting holes, 676-1, 676-2 liner guide grooves, 675-1, 675-2 liner lock holes, 569 control step plate, 677-1, 677-2, 677-3, 677-4 liner left cover plate mounting screw hole, 678-1, 678-2, 678-3, 678-4 liner right cover plate mounting screw hole, 679 liner right end cover plate slide rod through hole, 730 left side step plate, 731 right side step plate, 732 lower end step control plate, 733 upper end step control plate, 734-1, 734-2, 734-3, 734-4 tray mounting hole, 735-1, 735-2, 735-3, 735-4 control plate mounting screw, 736-1, 736-2 step lower end, 737-1, 737-2 upper end fastening hole, 741-1, 741-2 control plate right mounting hole, 742 outer right convex edge, 743 outer concave edge, 744 outer left convex edge, 745-1, 745-2 control panel left mounting hole, 746 control panel inside, 747 right oblique side, 748 left oblique side, 568 short circuit spring, 573-1, 573-2 ice melting latch, 572-1, 572-2 ice melting spring, 200A A phase aluminum wire side interface, 200B B phase aluminum wire side interface, 200C C phase aluminum wire side interface, 300A A phase inductive switch interface, 300B B phase inductive switch interface, 300C C phase inductive switch interface.
Detailed Description
Example (b):
referring to FIG. 1 in conjunction with the accompanying drawings
A passive lossless three-phase anti-icing and de-icing control device for a tension tower is composed of a temperature sensing module 10 and an inductive switch module; three induction switch modules are arranged corresponding to three phases, and are respectively corresponding to an A-phase induction switch module 20A, B phase induction switch module 20B, C phase induction switch module 20C; each induction switch module is provided with an induction switch assembly 70, a protection resistor 40, a protection capacitor 50 and a change-over switch 60 in a matching way; the three inductive switch modules are all connected to the temperature sensing module 10.
The passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is provided with three interfaces outside each phase, wherein the three interfaces are respectively input steel core interfaces; inputting an aluminum wire interface; and (6) an output interface. For an ac transmission line having three phases, each phase has one of three types of interfaces. Therefore, the number of the external interfaces of the utility model is nine, namely, a phase a input steel core interface 1A, B phase input steel core interface 1B, C phase input steel core interface 1C, A phase input aluminum wire interface 2A, B phase input aluminum wire interface 2B, C phase input aluminum wire interface 2C, A phase output interface 3A, B phase output interface 3B, C phase output interface 3C.
One for each phase of the induction switch module, referred to as phase a induction switch module 20A, B phase induction switch module 20B, C phase induction switch module 20C, respectively.
The temperature sensing module 10 has three external connection interfaces: each group of external connection interfaces comprises a steel core output interface 104 and a steel core side interface 100; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface 100A, B phase steel core side interface 100B, C phase steel core side interface 100C; the steel core output interface consists of an a-phase steel core output interface 104A, B phase steel core output interface 104B, C phase steel core output interface 104C.
See FIG. 11
After the protection resistor 40 and the protection capacitor 50 are connected in parallel with the change-over switch 60, one end of the protection resistor and one end of the protection capacitor are in short-circuit connection with the output interface of one phase; the other end is connected with the input aluminum wire interface of the phase in a short circuit way.
The inductive switch module has two external interfaces: an aluminum line side interface 200 and an inductive switch interface 300, three-phase AC lines, each corresponding to an inductive switch module, three inductive switch modules,
each induction switch module is provided with an aluminum wire side interface and an induction switch interface; the A-phase induction switch module is provided with an A-phase aluminum wire side interface 200A and an A-phase induction switch interface 300A; the B-phase induction switch module is provided with a B-phase aluminum wire side interface 200B and a B-phase induction switch interface 300B; the C-phase induction switch module is provided with a C-phase aluminum wire side interface 200C and a C-phase induction switch interface 300C;
the A-phase steel core side interface 100A is in short-circuit connection with the A-phase input steel core interface 1A; the B-phase steel core side interface 100B is in short circuit connection with the B-phase input steel core interface 1B; the C-phase steel core side interface 100C is in short-circuit connection with the C-phase input steel core interface 1C.
The phase A steel core output interface 104A, A phase induction switch interface 300A is in short-circuit connection with the phase A output interface 3A;
the B-phase steel core output interface 104B, B phase induction switch interface 300B is in short circuit connection with the B-phase output interface 3B;
the phase C steel core output interface 104C, C phase inductive switch interface 300C is short-circuited with the phase C output interface 3C.
The phase a aluminum line side interface 200A is short-circuited with the phase a input aluminum line interface 2A; the B-phase aluminum wire side interface 200B is in short circuit connection with the B-phase input aluminum wire interface 2B; the C-phase aluminum line side interface 200C is short-circuited with the C-phase input aluminum line interface 2C.
The temperature sensing module 10 is composed of a temperature sensing outer shell 110, a right bottom cover 170, a left bottom cover 160, a temperature sensing steel core 103), a temperature sensing slide rod seat 201 and a slide rod guide tube 202. On the temperature sensing module 10, a steel core side interface 100 and a steel core output interface 104 are installed.
See fig. 2 to 9
The temperature sensing housing 110 and the right bottom cover 170 constitute a sensing housing assembly. The temperature sensing steel core assembly is composed of the temperature sensing steel core 103, the inner fixing points 131w and 131x, the steel core output interface 104 and the steel core side interface 100.
The temperature sensing slide rod seat 201 and the slide rod guide pipe 202 form a temperature sensing slide rod seat assembly;
the sliding rod 203 and the temperature sensing tray 450 form a sliding rod assembly;
the inductive switch assembly is composed of a controller shell 560, a shell base 302, a controller inner container 563 and a control step plate 569.
In the temperature sensing module 10, the temperature sensing housing 110 is a tubular structure made of a material with good insulating property, and mounting screw holes 154w, 154x, 154y, and 154z are formed on both end surfaces of the tubular structure.
The temperature sensing housing 110 is provided with insulator hooks 153w, 153x, 153y and 153z along the length direction thereof; the insulator hook is cylindrical, and one half of the insulator hook is embedded into the pipe wall of the tubular shell and forms a whole with the pipe wall of the tubular shell; the other half of the insulator hook is exposed out of the outer side of the tubular shell, and circular insulator mounting holes 155w, 155x, 155y and 155z are formed in the exposed part and used for being mounted and fastened with the insulator; the number of the insulator hooks can be more than three, and four insulator hooks are adopted in the embodiment.
The left bottom cover 160 is fixed to the left side of the temperature sensing housing 110 by screws engaged with mounting screw holes on the left side of the temperature sensing housing 110; the right bottom cover 170 is fixed to the right side of the temperature sensing housing 110 by screws engaged with mounting screw holes on the right side of the temperature sensing housing; installing a sealing gasket between the left bottom cover 160 and the temperature sensing housing 110, so that the left bottom cover 160 and the temperature sensing housing 110 are sealed; a sealing gasket is arranged between the right bottom cover 170 and the temperature sensing housing 110, so that the right bottom cover 170 and the temperature sensing housing 110 are sealed; in the space formed by the temperature sensing shell, the left bottom cover and the right bottom cover, liquid with positive volume expansion coefficient and good insulating property is filled, and the transformer oil is adopted in the embodiment.
The left bottom cover is disc-shaped and is provided with three temperature sensing assembly mounting holes 161A, 161B and 161C and a plurality of screw fixing holes 162w, 162x, 162y and 162 z; the screw fixing holes 162w, 162x, 162y, 162z correspond to the positions of the mounting screw holes 154w, 154x, 154y, 154 z;
the left bottom cover mounting screws pass through the screw fixing holes 162w, 162x, 162y and 162z and are tightly engaged with the mounting screw holes.
The temperature sensing element mounting openings 161A, 161B, 161C are circular openings with internal temperature sensing element mounting threads 165w, 165x on the sidewalls.
The temperature sensing shell 110 is provided with three steel core output mounting holes 151A, 151B and 151C and three steel core side mounting holes 152A, 152B and 152C; the diameters of the steel core output mounting hole and the steel core side mounting hole are slightly larger than the diameter of the temperature sensing steel core, so that the temperature sensing steel core can penetrate through the steel core; the temperature sensing steel core is arranged on the pipe wall of the tubular shell through a steel core output mounting hole and a steel core side mounting hole, and the inside and the outside of the temperature sensing steel core are respectively sealed by sealing washers 157w, 157x, 157y and 157 z; the diameter of the temperature sensing steel core 103 is the same as that of the steel core of the self-made heat conducting wire, the middle section is a straight line, the two ends are external connecting sections, and the external connecting sections and the middle section form an angle of 90 degrees; the ends of the external connecting sections at the two ends are provided with steel core interface threads 133a and 133 b; the steel core interface thread is an external thread and is used for being twisted with the connecting threads in the steel core output interface and the steel core side interface; the temperature induction steel core and the self-made heat conducting wire are made of the same material and have the same diameter; the external connecting sections at two ends of the temperature sensing steel core penetrate through the steel core output mounting hole and the steel core side mounting hole, and the steel core interface threads at two ends are respectively meshed with the steel core output interface and the mounting internal threads of the steel core side interface; the inner fixing points 131w, 131x are discs welded on one side of the outer connecting section close to the middle section; the radius of the disc of the inner fixed point is larger than that of the steel core, and the inner fixed point is tightly attached to the inner wall of the temperature sensing shell 110 during installation;
see FIG. 10
The steel core output interface 104 and the steel core side interface 100 have the same structure; the steel core output interface and the steel core side interface are formed by welding a short circuit connection interface 147 and a hexagon nut 146, and the short circuit connection interface 147 and the hexagon nut 146 are both made of metal materials; the short circuit connection interface is annular; the hexagon nut is in a regular hexagon column shape, and the middle part of the hexagon nut is provided with an internal thread 145; the mounting internal threads 145 mate with and tightly engage the steel core interface threads 133a, 133 b.
The steel core side interface and the steel core output interface are divided into three groups; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface (100A), a B-phase steel core side interface (100B) and a C-phase steel core side interface (100C); the steel core output interface consists of an A-phase steel core output interface (104A), a B-phase steel core output interface (104B) and a C-phase steel core output interface (104C).
See fig. 12 to 14
The temperature sensing slide rod seat 201 comprises three parts, namely sensing switch assembly connecting threads 214a and 214b, slide rod seat bodies 221a and 221b and sensing shell connecting threads 215a and 215 b; the induction resistance connecting threads, the sliding rod seat body and the induction shell connecting threads are coaxially connected into a whole, the axis is a columnar hollow body, and the diameter of the columnar hollow body is the same as the inner diameter of the sliding rod guide pipe 202; the connecting thread of the inductive switch component has the same major diameter as the connecting thread of the inductive shell; the diameter of the slide bar seat body is larger than the major diameter of the connecting thread of the induction shell; the inductive switch assembly connecting threads 214a, 214b and the inductive housing connecting threads 215a, 215b are external threads; the large diameter of the connecting thread of the induction shell is the same as that of the internal threads 165w and 165x for mounting the temperature sensing assembly, the connecting thread of the induction shell is precisely occluded with the internal threads for mounting the temperature sensing assembly, and a sealing ring is added in the middle of occlusion to seal the connection thread and the internal threads; each temperature sensing component mounting opening is correspondingly provided with a temperature sensing slide rod seat 201, and then a group of sensing switch components are mounted. The major diameter of the connecting thread of the inductive switch component is the same as the major diameter of the right threads 310-1 and 310-2 of the inductive switch component, and the connecting thread of the inductive switch component is tightly meshed with the right threads of the inductive switch component.
The slide bar conduit 202 is a tubular structure, and the inner diameter of the slide bar conduit is slightly larger than the outer diameter of the slide bar 203; the hollow cavity in the middle of the slide rod conduit is the same as the axis of the columnar hollow body of the temperature sensing slide rod seat, and the inner diameter of the hollow cavity is the same, so that the hollow cavity and the columnar hollow body form a whole, and the whole is called a telescopic chute 222; the sliding rod 203 is arranged in the telescopic sliding chute and can slide in the telescopic sliding chute; the left side of the slide bar conduit is provided with conduit sealing grooves 211a1, 211a2, 211b1, 211b2, 211c1 and 211c 2; and a sealing ring is added in the middle of the sealing groove of the guide pipe, so that when the slide rod 203 moves left and right in the slide rod guide pipe, the navigation sliding grooves at the two ends of the sealing ring are kept sealed.
In the sliding rod assembly, the sliding rod 203 is cylindrical, the outer diameter of the sliding rod is slightly smaller than the inner diameter of the sliding rod guide pipe, the sliding rod can slide left and right in the sliding rod guide pipe and penetrates through the sealing rings in the middle of the guide pipe sealing grooves 211a1, 211a2, 211b1, 211b2, 211c1 and 211c2, so that the spaces on the left side and the right side of the sealing rings in the sliding rod guide pipe are kept sealed during sliding;
the temperature sensing tray 450 is disc-shaped and is vertical to the sliding rod, and the center of the sliding rod passes through the center of the temperature sensing tray; the temperature sensing tray is provided with a plurality of step mounting holes 451-1, 451-2, 451-3 and 451-4; the temperature sensing tray and the slide bar are made of engineering plastics and are molded into a whole by a die pressing process.
See figures 15 to 28
In the inductive switch assembly, a controller shell is in a tubular shape with a certain thickness and is made of insulating materials; the side wall of the connector is provided with an aluminum wire side interface mounting hole 663 for mounting the aluminum wire side interface 200; the aluminum wire side interface 200 is made of a metal material; the left side wall of the controller shell is provided with two normal latch mounting holes 665-1 and 665-2, the two normal latch mounting holes are cylindrical, and the axes of the two normal latch mounting holes and the tubular axis of the controller shell are on the same plane and are vertical; one of the deadbolt latches 564-1, 564-2 and the deadbolt springs 565-1, 565-2 are positioned per deadbolt mounting hole; the normal latch is arranged on the inner side, the normal spring is arranged on the outer side, the normal spring is sealed on the outer side of the controller shell, and the normal latch is exposed out of the inner side of the controller shell under the action of the normal spring; two ice melting latch mounting holes 664-1 and 664-2 are arranged on the right sides of the two normal latch mounting holes, the two ice melting latch mounting holes are cylindrical, the axes of the two ice melting latch mounting holes, the axes of the two normal latch mounting holes and the tubular axis of the controller shell are on the same plane, and the axes of the two ice melting latch mounting holes are perpendicular to the tubular axis of the controller shell; the ice melting lock latches 573-1 and 573-2 and the ice melting springs 572-1 and 572-2 are placed in each ice melting lock latch mounting hole, the ice melting lock latches on the inner sides, the ice melting springs are on the outer sides, the ice melting springs are sealed on the outer sides of the controller shells, and the ice melting lock latches are exposed out of the inner sides of the controller shells under the action of the ice melting springs;
the left side of the controller shell is provided with a plurality of shell base mounting holes 666-1, 666-2, 666-3 and 666-4; the right side of the controller shell is provided with an inductive switch assembly right side thread 310 on the tubular inner wall; the right side threads 310 of the inductive switch assembly are internal threads having a major diameter that is the same as the major diameter of the inductive switch assembly connecting threads 214a, 214b and are in tight engagement with the inductive switch assembly connecting threads.
Two step control plate guide grooves 672-1 and 672-2 are arranged on the inner side of the controller shell, and the two step control plate guide grooves are positioned on a plane formed by the axes of the two ice melting latch mounting holes of the axes of the two normal latch mounting holes;
the shell base 302 is made of metal material into a disc shape, and the upper side of the shell base is respectively provided with an inductive switch interface mounting hole 670 and four controller shell mounting holes 668-1, 668-2, 668-3 and 668-4; the controller shell mounting holes correspond to the shell base mounting holes 666-1, 666-2, 666-3 and 666-4 one by one;
the inductive switch interface 300 is formed by welding a switch-side insulator connection interface 312, an inductive switch short-circuit interface 313 and a hexagon nut 311, wherein the switch-side insulator connection interface 312, the inductive switch short-circuit interface 313 and the hexagon nut 311 are made of metal materials; the switch side insulator connection interface 312 and the inductive switch short circuit interface 313 are annular; the hexagonal nut is in a regular hexagon column shape, and an internal thread is arranged in the middle of the hexagonal nut; the mounting internal threads are matched with the mounting screw threads, the mounting screw threads penetrate through the inductive switch interface mounting hole 670, the inductive switch interface 300 is mounted on the housing base 302, and the inductive switch interface 300 is arranged on the outer side; the switch-side insulator connection interface 312 is used for connecting with an insulator, and the inductive switch short-circuit interface 313 is used for short-circuit connection of a power transmission conductor which is in short-circuit connection with the inductive switch interface 300;
see fig. 15 and 20
One side of the short-circuit spring 568 is welded in the middle of the housing base 302, and the other side is connected with the left end short-circuit plate 566; the left end short circuit plate is a metal disc, the diameter of the metal disc is smaller than the inner diameter of the shell of the controller, and the left end short circuit plate is in short circuit connection with the inductive switch interface 300 through a short circuit connecting line A661;
the controller liner comprises a liner left end cover plate 721, a liner main body 722 and a liner right end cover plate 723 which are all made of metal materials; the short circuit connecting wire B (660) is connected with the controller inner container and the aluminum wire side interface (200).
See FIG. 16
The inner container main body is tubular with a certain thickness; the right side of the pipe wall is provided with liner right end mounting holes 673-1, 673-2, 673-3 and 673-4 for mounting a liner right end cover plate 723, and the left side is provided with liner left end mounting holes 674-1, 674-2, 674-3 and 674-4 for mounting a liner left end cover plate 721; inner container guide grooves 676-1 and 676-2 are transversely arranged on two sides of the pipe wall, and the width of the inner container guide grooves is smaller than the diameter of the normal lock bolt and the ice melting lock bolt; a liner lock hole 675-1, 675-2 is arranged at a certain part of the liner guide groove; the inner container lock hole is cylindrical, and the diameter of the inner container lock hole is larger than that of the normal lock latch and the ice melting lock latch; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane with the ice melting lock latch mounting hole and the normal lock latch mounting hole of the controller shell;
the left end cover plate 721 is disc-shaped and is provided with liner left cover plate mounting screw holes 677-1, 677-2, 677-3 and 677-4, the left cover plate mounting screw holes 677-1, 677-2, 677-3 and 677-4 are in one-to-one correspondence with liner left end mounting holes 674-1, 674-2, 674-3 and 674-4, mounting screws penetrate through the liner left cover plate mounting screw holes and are meshed with the liner left end mounting holes in a threaded manner, and the left end cover plate 721 is fastened on the liner main body 722;
the right end cover plate 723 is disc-shaped and is provided with liner right cover plate mounting screw holes 678-1, 678-2, 678-3 and 678-4, the right cover plate mounting screw holes 678-1, 678-2, 678-3 and 678-4 correspond to liner right end mounting holes 673-1, 673-2, 673-3 and 673-4 one by one, mounting screws penetrate through the liner right cover plate mounting screw holes and are meshed with the liner right end mounting holes in a threaded manner, and the right end cover plate 723 is fastened on the liner main body 722;
a through hole 679 of a slide rod of the right end cover plate of the inner container is arranged in the middle of the right end cover plate 723, and the through hole 679 of the slide rod of the right end cover plate of the inner container is circular, and the diameter of the through hole is slightly larger than that of the slide rod 203; the slide rod 203 can penetrate through a slide rod through hole 679 of a cover plate at the right end of the inner container;
see fig. 25 to 28
The control step plate is composed of a left step plate 730, a right step plate 731, a lower end step control plate 732 and an upper end step control plate 733;
the left side step plate and the right side step plate are circular, two step lower end fastening holes 736-1 and 736-2 and two step upper end fastening holes 737-1 and 737-2 are respectively arranged on two sides of the left side step plate and the right side step plate, and the step lower end fastening holes and the step upper end fastening holes are arranged on the same straight line which passes through the circle center of the left side step plate;
the left side step plate is fastened on the left side of the lower end step control plate and the upper end step control plate by control plate mounting screws, and the right side step plate is fastened on the right side of the lower end step control plate and the upper end step control plate by control plate mounting screws; the lower end step change control plate and the upper end step change control plate are arranged on the same plane symmetrically; the left step plate and the right step plate are provided with four tray mounting holes 734-1, 734-2, 734-3, 734-4 which are in one-to-one correspondence with the positions of the four step mounting holes 451-1, 451-2, 451-2, 451-4 of the temperature sensing tray 450;
the upper end step control plate is a plate-shaped cuboid with a notch at the upper end, the upper end is called as an outer right convex edge 742, an outer concave edge 743 and an outer left convex edge 744 from right to left. The outer concave edge is concave inwards; the left side of the left side is provided with two control plate left mounting holes 745-1 and 745-2 which correspond to the fastening holes at the stepped upper end of the left side stepped plate and are used for fastening the upper end stepped control plate and the left side stepped control plate; two control panel right mounting holes 741-1 and 741-2 are formed in the right side, correspond to the fastening holes in the stepped upper end of the right stepped plate and are used for fastening the right stepped control panel and the upper stepped control panel; the right inclined side surface 747 is a transition side surface between the outer right convex edge and the outer concave edge, and gradually inclines from top to bottom from right to left, and the left inclined side surface 748 is a transition side surface between the outer concave edge and the outer left convex edge, and gradually inclines from top to bottom from left to right;
the lower end step-by-step control plate 732 and the upper end step-by-step control plate 733 are symmetrically distributed on the axis of the controller housing; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane; after the control step change plate is installed, the top end of the upper end step change control plate and the bottom end of the lower end step change control plate penetrate through the liner guide grooves 676-1 and 676-2 and are embedded into the middle of the step change control plate guide grooves 672-1 and 672-2; the step control plate guide grooves 672-1 and 672-2 are used for limiting and controlling the sliding track of the step control plate;
the temperature sensing tray (450) is arranged on the right side of the right step plate 731 and is fastened with the right step plate 731 into a whole; the sliding rod 203 is arranged on the right side of the temperature sensing tray 450, penetrates through a sliding rod through hole 679 of a cover plate at the right end of the liner and is arranged in the middle of the telescopic chute 222;
a short-circuit side spring 571 is arranged on the right side of the left end cover plate 721 and the left side of the left step plate 730; two ends of the short-circuit side spring 571 are respectively fastened with the left end cover plate 721 and the left step plate 730;
the right side of the temperature sensing tray 450 and the left side of the right end cover plate 723 are provided with sensing side springs 570; both ends of the sensing side spring 570 are fastened to the temperature sensing tray 450 and the right end cover 723, respectively.
See FIG. 29
The power transmission lead adopts a self-made heat conductor which is a self-made heat conductor and is indicated by CN201810370549.8, the outer conductor is an aluminum stranded wire, and the inner conductor is a steel core;
when the tension tower is used and installed, horizontal insulators 603a1, 603a2, 603b1, 603b2, 603c1 and 603c2 and vertical insulators 603w, 603x, 603y and 603z are respectively installed on two sides of a cross arm 601 of the tension tower of the power transmission line; installing tension-resistant clamps on the other side of the insulator in the horizontal direction, fixing the steel cores of the wires on the left side and the right side by using the tension-resistant clamps, and fixing the tension-resistant clamps on the cross arms by using the insulator;
assuming that power is delivered from the right side to the left side; the right self-made heat conducting wire inner conductor steel cores 605a1, 605b1 and 605c1 and the left self-made heat conducting wire inner conductor steel cores 605a2, 605b2 and 605c2 are respectively and fixedly connected to the right tension-resisting clips 604a1, 604b1 and 604c1 and the left tension-resisting clips 604a2, 604b2 and 604c 2; the steel cores 605a1, 605b1 and 605C1 of the self-made heat conducting wire on the right side are respectively in short circuit connection with an input steel core interface 1A, B phase A and an input steel core interface 1B, C phase A; the self-made heat conducting wire outer conductor aluminum stranded wires 607a1, 607b1 and 607C1 on the right side are respectively in short circuit connection with the input phase A input aluminum wire interface 2A, B phase input aluminum wire interface 2B, C phase input aluminum wire interface 2C; the steel cores 605ba2, 605b2 and 605C2 of the self-made heat conducting wire inner conductors on the left side are in short circuit connection with the self-made heat conducting wire outer conductor aluminum stranded wires 607a2, 607b2 and 607C2 according to phases, and then are in short circuit connection with an output interface through an A-phase output interface 3A, B-phase output interface 3B, C-phase output interface 3C respectively; the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is fixed on a cross arm of the tension tower of the power transmission line through a vertical insulator.
The length of a self-made heat conducting wire between two strain towers provided with the device is represented by L; the inner conductor outer channel, denoted Dn; inner conductor resistivity, denoted by An;
all units are metric units: length unit: rice m; time unit: sec, mass unit: kg, temperature unit: k, Kelvin;
Figure GDA0003638285920000141
when the utility model is implemented, the insulating material and the engineering plastic can adopt polyphenyl ether, and the conductive metal material can adopt copper.
When the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is assembled, the left step plate 730, the right step plate 731, the lower end step control plate 732 and the upper end step control plate 733 are combined to form a step control plate (569); after combination, the lower end step control plate (732), the outer right convex edge 742 and the outer left convex edge 744 of the upper end step control plate 733 are clamped between the liner guide grooves 676-1 and 676-2 on the two sides of the liner main body, and can flexibly move between the liner guide grooves. The outer upper convex edge and the outer lower convex edge are exposed out of the liner main body and clamped between the step control plate guide grooves 672-1 and 672-2 on the two sides of the controller shell, so that the liner main body can flexibly move along the step control plate guide grooves on the two sides of the controller shell.
The controller inner container 563 is composed of an inner container left end cover plate 721, an inner container main body 722 and an inner container right end cover plate 723. The control step plate 569 is sealed in the controller liner 563, and the moving tracks of the lower end step control plate 732 and the upper end step control plate 733 are limited by the liner guide groove, so that the control step plate 569 can flexibly move in the controller liner. The short-side spring 571 is installed between the left step plate 730 and the left end cover plate (721). The sensing side spring 570 is sleeved outside the sliding rod 203 and is connected between the temperature sensing tray (450) and the right end cover 723 of the liner.
The sliding rod 203 and the temperature sensing tray 450 form a sliding rod assembly, and the sliding rod is installed on the telescopic sliding chute 222 after passing through; the four tray mounting holes 734-1, 734-2, 734-3, 734-4 on the right step plate correspond to the four step mounting holes 451-1, 451-2, 451-2, 451-4 of the temperature sensing tray 450 in position one by one; four screws penetrate through the tray mounting holes and the step mounting holes, and the other side of the tray mounting holes is fastened by nuts, so that the right step plate and the temperature sensing tray 450 are fastened;
the outer sides of the lower stepped control plate 732 and the upper stepped control plate 733 are embedded in the middle of stepped control plate guide grooves 672-1 and 672-2 of the controller shell 560, and the controller shell 560 is screwed with the induction switch assembly connecting threads 214a and 214b through the induction switch assembly right side thread 310.
The left end short circuit plate 566, short circuit spring 568 are mounted on the housing base 302. Screws are screwed through the controller housing mounting holes 668-1, 668-2, 668-3, 668-4 to the housing base mounting holes 666-1, 666-2, 666-3, 666-4 to fix the housing base 302 to the controller housing 560; the controller shell 560 forms a closed space inside to enclose the controller inner liner 563 in the middle, and the controller inner liner 563 and the control step change plate 569 can freely move left and right under the limitation of the step change control plate guide grooves 672-1 and 672-2 at the two sides of the controller shell, the lower end step change control plate 732 and the upper end step change control plate 733.
The deadbolt 564-1, 564-2 and the deadbolt springs 565-1, 565-1 are mounted in the deadbolt mounting holes 665-1, 665-2 with the deadbolt on the outside and the deadbolt on the inside.
Ice melting springs 572-1, 572-2, ice melting latches 573-1, 573-2 are mounted in the ice melting latch mounting holes 664-1, 664-2, the ice melting springs being on the outside and the ice melting latches being on the inside.
The working principle of the utility model is as follows:
in the non-anti-icing and de-icing state, the change-over switch 60 is closed, so that the aluminum wire side interface 200 and the inductive switch interface 300 are in short circuit; ice melting latches 573-1, 573-2 are pushed into the inner container lock holes (675-1, 675-2) by ice melting springs 572-1, 572-2, thereby locking the inner container 563.
In the working state of ice-proof and ice-melting, the switch 60 is turned off, so that an open circuit is formed between the aluminum wire side interface 200 and the inductive switch interface 300.
When the temperature needs to be raised, after an open circuit is formed between the aluminum wire side interface 200 and the inductive switch interface 300, the transmission current flows through the temperature sensing steel core 103, and the current flowing through the temperature sensing steel core is increased, so that the oil temperature in the temperature sensing shell 110 is raised, the volume is expanded, the sliding rod 203 and the temperature sensing tray 450 are pushed to move leftwards, and the step control plate 569 is driven to move leftwards; under the action of the right inclined side surface 747 of the control stepped plate 569, the ice-melting latches 573-1 and 573-2 gradually move outwards, finally the ice-melting latches 573-1 and 573-2 are pushed out of the inner container locking holes 675-1 and 675-2, the locking state of the inner container 563 is released, under the action of the induction side spring 570 and the short-circuit side spring 571, the inner container 563 moves leftwards, and after the inner container 563 moves to a certain position, the inner container is in short-circuit connection with the left end short-circuit plate 566; so that the aluminum wire side interface 200 and the inductive switch interface 300 are short-circuited, the normal state latches 564-1 and 564-2 are pushed into the inner container lock holes 675-1 and 675-2 by the normal state springs 565-1 and 565-2, and the inner container 563 is locked.
When the temperature needs to be reduced, after the aluminum wire side interface 200 and the inductive switch interface 300 are short-circuited, the current flowing through the temperature sensing steel core 103 is greatly reduced, so that the oil temperature in the temperature sensing shell 110 is reduced, the volume is reduced, the sliding rod 203 and the temperature sensing tray 450 move rightwards, and the step control plate 569 is driven to move rightwards. Under the action of the left oblique side 748 of the control step plate 569, the normal latches 564-1 and 564-2 gradually move outwards, finally the normal latches 564-1 and 564-2 are pushed out of the liner locking holes 675-1 and 675-2 to release the locking state of the liner 563, under the action of the induction side spring 570 and the short-circuit side spring 571, the liner 563 moves rightwards, and after the liner moves to a certain position, the liner and the left end short-circuit plate 566 are opened; so that an open circuit is formed between the aluminum wire side interface 200 and the inductive switch interface 300, the ice melting latches 573-1 and 573-2 are pushed into the liner lock holes 675-1 and 675-2 by the ice melting springs 572-1 and 572-2, and the liner 563 is locked.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides a passive harmless three-phase anti-icing ice-melt controlgear for strain insulator tower which characterized in that: the control equipment consists of a temperature sensing module (10) and an inductive switch module; three induction switch modules are arranged corresponding to three phases, and are respectively corresponding to an A-phase induction switch module (20A), a B-phase induction switch module (20B) and a C-phase induction switch module (20C); each induction switch module is provided with an induction switch component (70), a protection resistor (40), a protection capacitor (50) and a change-over switch (60) in a matching way; the three induction switch modules are all connected to the temperature induction module (10);
the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is provided with three interfaces outside each phase, wherein the three interfaces are respectively input steel core interfaces; inputting an aluminum wire interface; an output interface; the input steel core interface consists of an A-phase input steel core interface (1A), a B-phase input steel core interface (1B) and a C-phase input steel core interface (1C); the input aluminum wire interface consists of an A-phase input aluminum wire interface (2A), a B-phase input aluminum wire interface (2B) and a C-phase input aluminum wire interface (2C); the output interface consists of an A-phase output interface (3A), a B-phase output interface (3B) and a C-phase output interface (3C); the control equipment is connected with the power transmission line through an external interface:
the temperature sensing module (10) has three external connection interfaces: each group of external connection interfaces comprises a steel core side interface 104 and a steel core output interface 100; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface (100A), a B-phase steel core side interface (100B) and a C-phase steel core side interface (100C); the steel core output interface consists of an A-phase steel core output interface (104A), a B-phase steel core output interface (104B) and a C-phase steel core output interface (104C);
the A-phase steel core side interface (100A) is in short circuit connection with the A-phase input steel core interface (1A);
the B-phase steel core side interface (100B) is in short circuit connection with the B-phase input steel core interface (1B);
the C-phase steel core side interface (100C) is in short-circuit connection with the C-phase input steel core interface (1C);
the A-phase steel core output interface (104A) is in short circuit connection with the A-phase output interface (3A);
the B-phase steel core output interface (104B) is in short circuit connection with the B-phase output interface (3B);
the C-phase steel core output interface (104C) is in short circuit connection with the C-phase output interface (3C);
after the protection resistor (40) and the protection capacitor (50) are connected with the switch (60) in parallel, one end of the protection resistor is in short-circuit connection with the output interface; the other end is in short circuit connection with the input aluminum wire interface;
the inductive switch module has two external interfaces: the three-phase alternating-current circuit comprises an aluminum wire side interface (200) and induction switch interfaces (300), wherein each three-phase alternating-current circuit corresponds to one induction switch module and comprises three induction switch modules, and each induction switch module is provided with the aluminum wire side interface (200) and the induction switch interface (300), so that an A-phase aluminum wire side interface (200A), a B-phase aluminum wire side interface (200B), a C-phase aluminum wire side interface (200C), an A-phase induction switch interface (300A), a B-phase induction switch interface (300B) and a C-phase induction switch interface (300C) are provided;
the A-phase aluminum wire side interface (200A) is in short-circuit connection with the A-phase input aluminum wire interface (2A);
the B-phase aluminum wire side interface (200B) is in short-circuit connection with the B-phase input aluminum wire interface (2B);
the C-phase aluminum wire side interface (200C) is in short-circuit connection with the C-phase input aluminum wire interface (2C);
the A-phase inductive switch interface (300A) is in short-circuit connection with the A-phase output interface (3A);
the B-phase inductive switch interface (300B) is in short-circuit connection with the B-phase output interface (3B);
the C-phase inductive switch interface (300C) is in short-circuit connection with the C-phase output interface (3C);
the temperature sensing module (10) is composed of a temperature sensing shell (110), a right side bottom cover (170), a left side bottom cover (160), a temperature sensing steel core (103), a temperature sensing slide rod seat (201) and a slide rod guide pipe (202); a steel core side interface and a steel core output interface are arranged on the temperature sensing module (10);
the temperature sensing shell (110), the right bottom cover (170) and the left bottom cover (160) form a sensing shell assembly;
the temperature sensing steel core (103), the inner fixing points (131w, 131x), the steel core output interface and the steel core side interface form a temperature sensing steel core assembly;
the temperature sensing slide bar seat (201) and the slide bar guide pipe (202) form a temperature sensing slide bar seat component;
the sliding rod (203) and the temperature sensing tray (450) form a sliding rod assembly;
the inductive switch assembly is composed of a controller shell (560), a shell base (302), a controller inner container (563) and a control step plate (569).
2. The passive lossless three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: in the temperature sensing module (10), a temperature sensing shell (110) is of a tubular structure and is made of a material with good insulating property, and mounting screw holes (154w, 154x, 154y and 154z) are formed in two end faces of the tubular structure;
the temperature sensing shell (110) is provided with insulator hooks (153w, 153x, 153y and 153z) along the length direction; the insulator hook is cylindrical, and one half of the insulator hook is embedded into the pipe wall of the tubular shell and forms a whole with the pipe wall of the tubular shell; the other half part of the insulator hook is exposed out of the outer side of the tubular shell, and the exposed part is provided with circular insulator mounting holes (155w, 155x, 155y and 155z) for mounting and fastening with the insulator;
the left bottom cover (160) is fixed on the left side of the temperature sensing shell (110) through the matching of screws and mounting screw holes on the left side of the temperature sensing shell (110); the right bottom cover (170) is fixed on the right side of the temperature sensing shell (110) through the matching of a screw and a mounting screw hole on the right side of the temperature sensing shell; installing a sealing gasket between the left bottom cover (160) and the temperature sensing shell (110) so that the left bottom cover (160) and the temperature sensing shell (110) are sealed; a sealing gasket is arranged between the right bottom cover (170) and the temperature sensing shell (110) so that the right bottom cover (170) is sealed with the temperature sensing shell (110); liquid with positive volume expansion coefficient and good insulating property is filled in a space formed by the temperature sensing shell, the left bottom cover (160) and the right bottom cover (170);
the left bottom cover is disc-shaped and is provided with three temperature sensing assembly mounting holes (161A, 161B and 161C) and a plurality of screw fixing holes (162w, 162x, 162y and 162 z); the screw fixing holes (162w, 162x, 162y, 162z) correspond to the positions of the mounting screw holes (154w, 154x, 154y, 154 z);
mounting screws of the left bottom cover penetrate through the screw fixing holes (162w, 162x, 162y and 162z) and are tightly meshed with the mounting screw holes;
the temperature sensing component mounting openings (161A, 161B, 161C) are circular openings, and temperature sensing component mounting internal threads (165w, 165x) are formed in the side walls.
3. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: the temperature sensing shell (110) is provided with three steel core output mounting holes (151A, 151B and 151C) and three steel core side mounting holes (152A, 152B and 152C); the diameters of the steel core output mounting hole and the steel core side mounting hole are slightly larger than the diameter of the temperature sensing steel core, so that the temperature sensing steel core can penetrate through the temperature sensing steel core;
the temperature sensing steel core is arranged on the pipe wall of the tubular shell through a steel core output mounting hole and a steel core side mounting hole, and the inside and the outside of the temperature sensing steel core are respectively kept sealed by sealing washers (157w, 157x, 157y and 157 z); the diameter of the temperature sensing steel core (103) is the same as that of the steel core of the self-made heat conductor inner conductor steel core, the middle section is a straight line, the two ends are external connecting sections, and the external connecting sections and the middle section form an angle of 90 degrees; steel core interface threads (133w, 133x) are arranged at the ends of the external connecting sections at the two ends; the steel core interface thread is an external thread and is used for being twisted with the connecting threads in the steel core output interface and the steel core side interface; the material and the diameter of the temperature sensing steel core and the steel core of the conductor in the self-made heat conducting wire are completely the same; the external connecting sections at two ends of the temperature sensing steel core penetrate through the steel core output mounting hole and the steel core side mounting hole, and the steel core interface threads at the two ends are respectively meshed with the mounting internal threads of the steel core output interface (104) and the steel core side interface (100); the inner fixing points (131w, 131x) are disks welded on one side of the outer connecting section close to the middle section; the radius of the disc of the inner fixed point is larger than that of the steel core, and the inner fixed point is tightly attached to the inner wall of the temperature sensing shell (110) during installation;
the steel core output interface 104 and the steel core side interface 100 have the same structure; the steel core output interface and the steel core side interface are formed by welding a short circuit connection interface (147) and a hexagonal nut (146), and the short circuit connection interface (147) and the hexagonal nut (146) are both made of metal materials; the short circuit connection interface is annular; the hexagonal nut is in a regular hexagon column shape, and the middle of the hexagonal nut is provided with an installation internal thread (145); the mounting internal thread (145) is matched with the steel core interface threads (133a, 133b) and is tightly meshed with the steel core interface threads;
the steel core side interface and the steel core output interface are divided into three groups; each group of external connection interfaces is arranged corresponding to one phase; the steel core side interface consists of an A-phase steel core side interface (100A), a B-phase steel core side interface (100B) and a C-phase steel core side interface (100C); the steel core output interface consists of an A-phase steel core output interface (104A), a B-phase steel core output interface (104B) and a C-phase steel core output interface (104C).
4. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: the temperature sensing sliding rod seat (201) comprises three parts, namely sensing switch assembly connecting threads (214a, 214b), sliding rod seat bodies (221a, 221b) and sensing shell connecting threads (215a, 215 b); the induction switch assembly is columnar, the induction switch assembly is connected with threads (214a, 214b), the sliding rod seat bodies (221a, 221b), the induction shell connecting threads (215a, 215b) are coaxially connected into a whole, the axis of the induction shell connecting threads is columnar hollow, and the diameter of the columnar hollow is the same as the inner diameter of the sliding rod guide pipe (202); the connecting screw threads (214a, 214b) of the inductive switch assembly and the connecting screw threads (215a, 215b) of the inductive shell have the same major diameter; the diameter of the slide bar seat body is larger than the major diameter of the connecting thread of the induction shell; the connecting screw threads (214a, 214b) of the inductive switch assembly and the connecting screw threads (215a, 215b) of the inductive shell are external screw threads; the major diameter of the connecting thread of the induction shell is the same as that of the mounting internal threads (165w, 165x) of the temperature sensing assembly, the connecting thread (215a, 215b) of the induction shell is precisely meshed with the mounting internal threads (165w, 165x) of the temperature sensing assembly, and a sealing ring is added in the middle of the meshing process to seal the two threads; the major diameters of the connecting threads (214a and 214b) of the inductive switch assembly are the same as the major diameters of the right threads (310-1 and 310-2) of the inductive switch assembly, and the connecting threads are tightly meshed with the right threads of the inductive switch assembly;
the slide bar conduit (202) is of a tubular structure, and the inner diameter of the slide bar conduit is slightly larger than the outer diameter of the slide bar (203); the hollow cavity in the middle of the slide rod guide pipe is the same as the axis of the columnar hollow body of the temperature sensing slide rod seat, and the inner diameter of the hollow cavity is the same, so that the hollow cavity and the columnar hollow body form a whole, and the whole is called a telescopic chute (222); the sliding rod (203) is arranged in the telescopic sliding chute and can slide in the telescopic sliding chute; the left side of the slide bar conduit is provided with a conduit sealing groove (211a1, 211a2, 211b1, 211b2, 211c1 and 211c 2); a sealing ring is added in the middle of a sealing groove of the guide pipe, so that when the sliding rod (203) moves left and right in the sliding rod guide pipe, the navigation sliding grooves at the two ends of the sealing ring are kept sealed.
5. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: in the slide bar component, a slide bar (203) is cylindrical, the outer diameter of the slide bar is slightly smaller than the inner diameter of a slide bar guide tube (202), the slide bar can slide left and right in the slide bar guide tube and penetrates through sealing rings in the middle of guide tube sealing grooves (211a1, 211a2, 211b1, 211b2, 211c1 and 211c2), so that the spaces on the left side and the right side of the sealing rings in the slide bar guide tube are kept sealed during sliding;
the temperature sensing tray (450) is disc-shaped and is vertical to the slide bar, and the axis of the slide bar penetrates through the center of the temperature sensing tray; the temperature sensing tray is provided with a plurality of step mounting holes (451-1, 451-2, 451-3, 451-4); the temperature sensing tray and the slide bar are made of engineering plastics and are molded into a whole by a die pressing process.
6. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: in the inductive switch assembly, a controller shell is in a tubular shape with a certain thickness and is made of insulating materials; the side wall of the aluminum wire side interface is provided with an aluminum wire side interface mounting hole (663) for mounting an aluminum wire side interface (200); the aluminum wire side interface (200) is made of metal material; the left side wall of the controller shell is provided with two normal latch mounting holes (665-1 and 665-2), the two normal latch mounting holes are cylindrical, and the axes of the two normal latch mounting holes and the tubular axis of the controller shell are on the same plane and are vertical; each of the deadbolt latch mounting holes receives one deadbolt (564-1, 564-2) and one deadbolt spring (565-1, 565-2); the normal latch is arranged on the inner side, the normal spring is arranged on the outer side, the normal spring is sealed on the outer side of the controller shell, and the normal latch is exposed out of the inner side of the controller shell under the action of the normal spring; two ice melting latch mounting holes (664-1 and 664-2) are arranged on the right sides of the two normal latch mounting holes, the two ice melting latch mounting holes are cylindrical, the axes of the two ice melting latch mounting holes, the axes of the two normal latch mounting holes and the tubular axis of the controller shell are on the same plane, and the axes of the two ice melting latch mounting holes are vertical to the tubular axis of the controller shell; each ice melting lock pin mounting hole is provided with an ice melting lock pin (573-1, 573-2) and an ice melting spring (572-1, 572-2), the ice melting lock pin is arranged at the inner side, the ice melting spring is arranged at the outer side, the ice melting spring is sealed at the outer side of the controller shell, and the ice melting lock pin is exposed out of the inner side of the controller shell under the action of the ice melting spring;
the left side of the controller shell is provided with a plurality of shell base mounting holes (666-1, 666-2, 666-3 and 666-4); the right side of the controller shell is provided with an induction switch assembly right side thread (310) on the tubular inner wall; the right side thread (310) of the inductive switch assembly is an internal thread, the major diameter of the right side thread is the same as that of the inductive switch assembly connecting threads (214a, 214b), and the right side thread is tightly meshed with the inductive switch assembly connecting threads (214a, 214 b);
two step control plate guide grooves (672-1 and 672-2) are arranged on the inner side of the controller shell, and the two step control plate guide grooves are positioned on a plane formed by the axes of the two normal state lock bolt mounting holes and the axes of the two ice melting lock bolt mounting holes;
the shell base (302) is made into a disc shape by metal materials, and the upper side of the shell base is respectively provided with an inductive switch interface mounting hole (670) and four controller shell mounting holes (668-1, 668-2, 668-3 and 668-4); the controller shell mounting holes correspond to the shell base mounting holes (666-1, 666-2, 666-3 and 666-4) one by one;
the inductive switch interface (300) is formed by welding a switch side insulator connecting interface (312), an inductive switch short circuit interface (313) and a hexagon nut (311), and the switch side insulator connecting interface (312), the inductive switch short circuit interface (313) and the hexagon nut (311) are all made of metal materials; the switch side insulator connecting interface (312) and the inductive switch short circuit interface (313) are annular; the hexagonal nut is in a regular hexagon column shape, and an internal thread is arranged in the middle of the hexagonal nut; the mounting internal thread is matched with the mounting screw thread, the mounting screw thread penetrates through the inductive switch interface mounting hole (670), the inductive switch interface (300) is mounted on the shell base (302), and the inductive switch interface (300) is arranged on the outer side; the switch side insulator connection interface (312) is used for being connected with an insulator, and the induction switch short circuit interface (313) is used for being connected with a short circuit of a transmission conductor in short circuit connection with the induction switch interface (300);
one side of the short circuit spring (568) is welded in the middle of the shell base (302), and the other side of the short circuit spring is connected with a left end short circuit plate (566); the left end short circuit plate is a metal disc, the diameter of the metal disc is smaller than the inner diameter of the shell of the controller, and the left end short circuit plate is in short circuit connection with the inductive switch interface (300) through a short circuit connecting line A (661);
the controller inner container comprises an inner container left end cover plate (721), an inner container main body (722) and an inner container right end cover plate (723), which are all made of metal materials; the short circuit connecting wire B (660) is connected with the controller inner container and the aluminum wire side interface (200);
the inner container main body is tubular with a certain thickness; the right side of the pipe wall is provided with liner right end mounting holes (673-1, 673-2, 673-3 and 673-4) for mounting a liner right end cover plate (723), and the left side is provided with liner left end mounting holes (674-1, 674-2, 674-3 and 674-4) for mounting a liner left end cover plate (721); inner container guide grooves (676-1, 676-2) are transversely arranged at two sides of the pipe wall, and the width of the inner container guide grooves is smaller than the diameter of the normal lock bolt and the ice melting lock bolt; a liner lock hole (675-1, 675-2) is arranged at a certain part of the liner guide groove; the inner container lock hole is cylindrical, and the diameter of the inner container lock hole is larger than that of the normal lock latch and the ice melting lock latch; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane with the ice melting lock latch mounting hole and the normal lock latch mounting hole of the controller shell;
the left end cover plate (721) is disc-shaped, and is provided with liner left cover plate mounting screw holes (677-1, 677-2, 677-3 and 677-4), the left cover plate mounting screw holes (677-1, 677-2, 677-3 and 677-4) are in one-to-one correspondence with liner left end mounting holes (674-1, 674-2, 674-3 and 674-4), mounting screws penetrate through the liner left cover plate mounting screw holes and are meshed with the liner left end mounting holes in a threaded manner, and the left end cover plate (721) is fastened on the liner main body (722);
the right end cover plate (723) is disc-shaped and is provided with liner right cover plate mounting screw holes (678-1, 678-2, 678-3 and 678-4), the right cover plate mounting screw holes (678-1, 678-2, 678-3 and 678-4) correspond to liner right end mounting holes (673-1, 673-2, 673-3 and 673-4) one by one, mounting screws penetrate through the liner right cover plate mounting screw holes and are meshed with the liner right end mounting holes in a threaded manner, and the right end cover plate (723) is fastened to the liner main body (722);
a through hole (679) of a slide rod of the right end cover plate of the inner container is arranged in the middle of the right end cover plate (723), and the through hole (679) of the slide rod of the right end cover plate of the inner container is circular, and the diameter of the through hole is slightly larger than that of the slide rod (203); the sliding rod (203) can penetrate through a sliding rod through hole (679) of a cover plate at the right end of the inner container; the control step plate consists of a left step plate (730), a right step plate (731), a lower end step control plate (732) and an upper end step control plate (733);
the left side step plate and the right side step plate are circular, two step lower end fastening holes (736-1 and 736-2) and two step upper end fastening holes (737-1 and 737-2) are respectively arranged on two sides of the left side step plate and the right side step plate, and the step lower end fastening holes and the step upper end fastening holes are arranged on a straight line which passes through the circle centers of the left side step plate and the right side step plate;
the left side step plate is fastened on the left side of the lower end step control plate and the upper end step control plate by control plate mounting screws, and the right side step plate is fastened on the right side of the lower end step control plate and the upper end step control plate by control plate mounting screws; the lower end step control plate and the upper end step control plate are arranged on the same plane symmetrically; the left step plate and the right step plate are provided with four tray mounting holes (734-1, 734-2, 734-3, 734-4) which are in one-to-one correspondence with the positions of the four step mounting holes (451-1, 451-2, 451-2, 451-4) of the temperature sensing tray (450);
the upper end step control plate is a plate-shaped cuboid with a notch at the upper end, the upper end is called as an outer right convex edge (742), an outer concave edge (743) and an outer left convex edge (744), and the outer concave edge is recessed inwards; the left side of the left side; two control panel right mounting holes (741-1 and 741-2) are formed in the right side, correspond to the fastening holes in the stepped upper end of the right stepped plate and are used for fastening the right stepped control panel and the upper stepped control panel; the right inclined side face (747) is a transition side face between the outer right convex edge and the outer concave edge and gradually inclines from top to bottom from right to left, and the left inclined side face (748) is a transition side face between the outer concave edge and the outer left convex edge and gradually inclines from top to bottom from left to right;
the lower end step control plate (732) and the upper end step control plate (733) are symmetrically distributed on the axis of the controller shell; the inner container lock hole and the inner container guide groove of the controller inner container are positioned on the same plane; after the control step change plate is installed, the top end of the upper end step change control plate and the bottom end of the lower end step change control plate penetrate through the liner guide grooves (676-1 and 676-2) and are embedded into the middle of the step change control plate guide grooves (672-1 and 672-2); the step control plate guide grooves (672-1 and 672-2) are used for limiting and controlling the sliding track of the step control plate;
the temperature sensing tray (450) is arranged on the right side of the right step plate (731) and is fastened with the right step plate (731) into a whole; the sliding rod (203) is arranged on the right side of the temperature sensing tray (450), penetrates through a sliding rod through hole (679) of a cover plate at the right end of the inner container and is installed in the middle of the telescopic chute (222);
a short-circuit side spring (571) is arranged on the right side of the left end cover plate (721) and the left side of the left step plate (730); two ends of the short circuit side spring (571) are respectively fastened with the left end cover plate (721) and the left side step plate (730);
the right side of the temperature sensing tray (450) and the left side of the right end cover plate (723) are provided with sensing side springs (570); two ends of the induction side spring (570) are respectively fastened with the temperature induction tray (450) and the right end cover plate (723).
7. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: when the tension tower is used and installed, horizontal insulators (603a1, 603a2, 603b1, 603b2, 603c1 and 603c2) and vertical insulators (603w, 603x, 603y and 603z) are respectively installed on two sides of a cross arm (601) of the tension tower of the power transmission line; installing tension-resistant clamps on the other side of the insulator in the horizontal direction, fixing the steel cores of the wires on the left side and the right side by using the tension-resistant clamps, and fixing the tension-resistant clamps on the cross arms by using the insulator;
assuming that power is delivered from the right side to the left side; the right self-made thermal conductor inner conductor steel cores (605a1, 605b1, 605c1) and the left self-made thermal conductor inner conductor steel cores (605a2, 605b2, 605c2) are respectively and fixedly connected to the right tension-resisting clips (604a1, 604b1, 604c1) and the left tension-resisting clips (604a2, 604b2, 604c 2); the right self-made hot wire inner conductor steel cores (605a1, 605B1 and 605C1) are respectively in short circuit connection with an A-phase input steel core interface (1A), a B-phase input steel core interface (1B) and a C-phase input steel core interface (1C); the self-made heat conducting wire outer conductor aluminum stranded wires (607a1, 607B1 and 607C1) on the right side are respectively in short circuit connection with the phase A input aluminum wire interface (2A), the phase B input aluminum wire interface (2B) and the phase C input aluminum wire interface (2C); the steel cores (605ba2, 605B2 and 605C2) of the self-made heat conducting wires on the left side are in short circuit connection with the aluminum stranded wires (607a2, 607B2 and 607C2) of the outer conductors of the self-made heat conducting wires on the phase basis, and then are in short circuit connection with the phase-by-phase output interface (3A), the phase-B output interface (3B) and the phase-C output interface (3C) of the phase-A output interface; the passive lossless three-phase anti-icing and de-icing control equipment for the tension tower is fixed on a cross arm of the tension tower of the power transmission line through a vertical insulator.
8. The passive, lossless, three-phase anti-icing and de-icing control apparatus for a tension tower of claim 1, wherein: the length of a self-made heat conducting wire between two strain towers provided with the device is represented by L; the inner conductor outer channel, denoted Dn; inner conductor resistivity, denoted by An;
all units are metric units: length unit: rice (m); time unit: seconds (sec), mass unit: kilograms (kg), temperature units: kelvin (K);
Figure FDA0003638285910000061
CN202110797479.6A 2021-07-14 2021-07-14 Passive lossless three-phase anti-icing and de-icing control equipment for strain tower Active CN113507086B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110797479.6A CN113507086B (en) 2021-07-14 2021-07-14 Passive lossless three-phase anti-icing and de-icing control equipment for strain tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110797479.6A CN113507086B (en) 2021-07-14 2021-07-14 Passive lossless three-phase anti-icing and de-icing control equipment for strain tower

Publications (2)

Publication Number Publication Date
CN113507086A CN113507086A (en) 2021-10-15
CN113507086B true CN113507086B (en) 2022-06-21

Family

ID=78013314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110797479.6A Active CN113507086B (en) 2021-07-14 2021-07-14 Passive lossless three-phase anti-icing and de-icing control equipment for strain tower

Country Status (1)

Country Link
CN (1) CN113507086B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100407531C (en) * 2000-11-14 2008-07-30 魁北克水电公司 Switching apparatus and method for varying phase line impedance of electric power transport line section
CN108475937A (en) * 2015-09-11 2018-08-31 转新动力有限公司 A kind of controller of inductive load to contain one or more induction coils
CN109347041A (en) * 2018-12-06 2019-02-15 四川大学 Lossless three-phase current divider and design and control method between line
CN109361187A (en) * 2018-12-06 2019-02-19 四川大学 Lossless single-phase current divider and design and control method between line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102163828B (en) * 2011-03-14 2013-03-20 上海交通大学 Intelligent prevention and control system and method for continuously supplying power in power transmission network ice disaster

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100407531C (en) * 2000-11-14 2008-07-30 魁北克水电公司 Switching apparatus and method for varying phase line impedance of electric power transport line section
CN108475937A (en) * 2015-09-11 2018-08-31 转新动力有限公司 A kind of controller of inductive load to contain one or more induction coils
CN109347041A (en) * 2018-12-06 2019-02-15 四川大学 Lossless three-phase current divider and design and control method between line
CN109361187A (en) * 2018-12-06 2019-02-19 四川大学 Lossless single-phase current divider and design and control method between line

Also Published As

Publication number Publication date
CN113507086A (en) 2021-10-15

Similar Documents

Publication Publication Date Title
US7692338B2 (en) Direct current superconducting power transmission cable and system
CA3126982A1 (en) Intelligent ice melting device based on self-heating wire and ice melting method thereof
Xin et al. Introduction of China's first live grid installed HTS power cable system
CN113507086B (en) Passive lossless three-phase anti-icing and de-icing control equipment for strain tower
EP2127051A2 (en) A cryogenic cable termination unit
KR102001972B1 (en) Contact element intended for a superconducting cable unit
CA3126980A1 (en) Passive intelligent ice melting control device and ice melting control method thereof
CN212258318U (en) Glass fiber reinforced plastic cable support
CN113507081B (en) Passive lossless single-phase anti-icing and de-icing control equipment for strain tower
CN113507083B (en) Three-phase passive anti-icing and de-icing resistance type control equipment for strain tower
CN113507085B (en) Three-phase passive anti-icing de-icing resistor type control equipment
CN113507084B (en) Single-phase resistance type passive anti-icing and de-icing control equipment for strain tower
Shah et al. Temperature field distribution of optical fiber composite low-voltage cable
CN102868166A (en) Thyristor valve module for horizontal water-cooling static var compensator
Bejan Discrete cooling of low heat leak supports to 4.2 K
CN109347041B (en) Interline lossless three-phase current divider and design and control method
CN203150987U (en) Intelligent vacuum ring net switch device
CN209217562U (en) A kind of air insulation vacuum load switch
CN217305384U (en) Pressure-resistant test system for testing cable
CN202678817U (en) Warm-keeping device for circuit breaker tank body
CN1173723A (en) High-tension transformation equipment
CN220492543U (en) Double-layer armoured removable alternating current metal-enclosed switchgear
CN219266431U (en) Cable temperature rise monitoring device
CN113507082A (en) Single-phase passive anti-icing and de-icing resistance type control equipment for strain tower
CN220510967U (en) Multi-transmission rectifying complete machine

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant