CA3126980C - Passive intelligent ice melting control device and ice melting control method thereof - Google Patents
Passive intelligent ice melting control device and ice melting control method thereof Download PDFInfo
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- CA3126980C CA3126980C CA3126980A CA3126980A CA3126980C CA 3126980 C CA3126980 C CA 3126980C CA 3126980 A CA3126980 A CA 3126980A CA 3126980 A CA3126980 A CA 3126980A CA 3126980 C CA3126980 C CA 3126980C
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/16—Devices for removing snow or ice from lines or cables
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Abstract
A passive intelligent ice melting control device is provided. The control device comprises passive temperature sensors, a passive temperature control resistor and an ice melting control switch. The control device is arranged on a self-heating wire, and two ends of the self-heating wire are connected with power transmission lines respectively. There are two passive temperature sensors with the same structure. The self-heating wire is wrapped in the passive temperature sensors. A
sensing body is cylindrical in sector, and together with mounting plates A and B, a stranded wire contact surface and an atmosphere contact surface, forms a cylindrical sector closed space. Temperature control liquid is contained in the sealed cavity. The passive temperature control resistor comprises a resistance wire, a contact brush, a conductive rod, and an insulating rod. A resistor housing is cylindrical and communicates with the sealed cavity containing the temperature control liquid through a connecting tube interface.
sensing body is cylindrical in sector, and together with mounting plates A and B, a stranded wire contact surface and an atmosphere contact surface, forms a cylindrical sector closed space. Temperature control liquid is contained in the sealed cavity. The passive temperature control resistor comprises a resistance wire, a contact brush, a conductive rod, and an insulating rod. A resistor housing is cylindrical and communicates with the sealed cavity containing the temperature control liquid through a connecting tube interface.
Description
PASS WE INTELLIGENT ICE MELTING CONTROL DEVICE AND ICE MELTING
CONTROL METHOD THEREOF
BACKGROUND OF THE INVENTION
[0001] 1. Technical Field
CONTROL METHOD THEREOF
BACKGROUND OF THE INVENTION
[0001] 1. Technical Field
[0002] The invention relates to an anti-icing and ice melting technology for power transmission lines, in particular to a passive intelligent ice melting control device and an ice melting control method thereof.
[0003] 2. Description of Related Art
[0004] The anti-icing and ice melting technology for power transmission lines is essential in power transmission, especially in cold winter, when lines in many areas are often covered with ice, causing damage to the lines. When the icing condition is beyond the tolerance of the lines, accidents such as line breaking will occur. Therefore, deicing of the power transmission lines in winter is very important. In the prior art, the ice melting technology is constantly improving. The application CN201810370549.8 -Self-Made Heat Conductor and Heating Device Embedded with Insulating and Heat-Conducting Material and Implementation Method thereof' proposes a self-heating wire which is of a coaxial cable structure, containing an outer conductor, an insulating and heat-conducting material and an inner conductor. By using the insulating and heat-conducting material instead of a heating material, the heat generated by its own steel-cored resistor is effectively utilized, so as to achieve the anti-icing and ice melting purposes. The application CN201810952697.0 -Online Monitoring Device Having Self-Made Heat Conductor Embedded with Insulating Material and Detection Method" provides an online monitoring device based on a self-made heat conductor embedded with an insulating material. The online monitoring device accurately measures the operating parameters of the transmission lines through simulation, and predicts and Date Recue/Date Received 2022-02-03 analyzes the anti-icing and ice melting control of the transmission lines.
[0005] The two self-heating wire ice melting technologies have good anti-icing and ice melting effects, and can ensure the safety of electrical devices.
However, a power supply is needed for control and detection. In the actual operation of the transmission lines, how to get low-voltage power is a challenge.
BRIEF SUMMARY OF THE INVENTION
However, a power supply is needed for control and detection. In the actual operation of the transmission lines, how to get low-voltage power is a challenge.
BRIEF SUMMARY OF THE INVENTION
[0006] The purpose of the invention is to solve the problem that a power supply is needed for control and detection when a self-heating wire of a coaxial cable structure is used to make a heating device to effectively prevent and melt ice. A passive intelligent ice melting control device and an ice melting control method thereof are proposed, which can solve the problem that power is hard to get, effectively ensure the use of an anti-icing and ice melting device, and have good anti-icing and ice melting effects.
[0007] The purpose of the invention is achieved as follows:
[0008] The passive intelligent ice melting control device is arranged on a self-heating wire, two ends of the self-heating wire are connected with traditional power transmission lines respectively, and the passive intelligent ice melting control device consists of passive temperature sensors, a passive temperature control resistor and an ice melting control switch. The passive temperature sensors are connected with the passive temperature control resistor through temperature control connecting tubes.
[0009] The passive temperature control resistor has two connection ports, one temperature control resistor connecting end A is in short-circuit connection with a traditional transmission wire A, and the other temperature control resistor connecting end B is in short-circuit connection with an outer conductor of the self-heating wire.
[0010] The ice melting control switch has two connection ports, a control switch Date Recue/Date Received 2022-02-03 wire connecting end is in short-circuit connection with the traditional transmission wire A, and a control switch outer conductor connecting end is in short-circuit connection with the outer conductor of the self-heating wire.
[0011] The passive temperature sensors include a passive temperature sensor A
and a passive temperature sensor B with the same structure, each of which is composed of a mounting plate A, a mounting plate B, a sensing body, an open side panel, a closed side panel and a temperature sensing control end. The self-heating wire is tightly wrapped in the passive temperature sensors. One end of the temperature control connecting tube is connected to the temperature sensing control end of the passive temperature sensor, and the other end is connected to a temperature control resistor control end of the passive temperature control resistor.
and a passive temperature sensor B with the same structure, each of which is composed of a mounting plate A, a mounting plate B, a sensing body, an open side panel, a closed side panel and a temperature sensing control end. The self-heating wire is tightly wrapped in the passive temperature sensors. One end of the temperature control connecting tube is connected to the temperature sensing control end of the passive temperature sensor, and the other end is connected to a temperature control resistor control end of the passive temperature control resistor.
[0012] The sensing body is cylindrical in sector, including a stranded wire contact surface and an atmosphere contact surface, both of which are semi-circular.
The mounting plates A and B, together with the stranded wire contact surface and the atmosphere contact surface, form a cylindrical sector closed space with a length of Lw. The open side panel and the closed side panel are installed on the two sides of the sensing body respectively.
Except for a temperature control installation hole of the open side panel, the rest part is closed to form a sealed cavity, which is called a temperature sensing cavity and contains temperature control liquid with a large coefficient of cubical expansion.
The mounting plates A and B, together with the stranded wire contact surface and the atmosphere contact surface, form a cylindrical sector closed space with a length of Lw. The open side panel and the closed side panel are installed on the two sides of the sensing body respectively.
Except for a temperature control installation hole of the open side panel, the rest part is closed to form a sealed cavity, which is called a temperature sensing cavity and contains temperature control liquid with a large coefficient of cubical expansion.
[0013] The passive intelligent ice melting control device is installed at one end of the self-heating wire, and an inner conductor of the self-heating wire at an installation end is in short-circuit connection with the traditional transmission wire A at the installation end. At an end, without the passive intelligent ice melting control device, of the self-heating wire, the inner conductor of the self-heating wire is in short-circuit connection with a traditional transmission wire B at this end after the inner conductor and the outer conductor are short-circuited.
Date Recue/Date Received 2022-02-03
Date Recue/Date Received 2022-02-03
[0014] In the sensing body, the front view of the stranded wire contact surface is semicircular, there are several side panel mounting holes B on both sides, with an outer diameter of Dn and a thickness of hn, and the value of Dn-2hn is equal to the outer diameter of the self-heating wire. The front view of the atmosphere contact surface is semicircular, and there are several side panel mounting holes A on both sides outside the stranded wire contact surface, with an inner diameter of Dw and a thickness of hw.
The mounting plates A and B are rectangles with a length of Lab which is equal to Lw and a width larger than Dw-Dn+2hw. The mounting plates A and B are connected to the bottoms of the stranded wire contact surface and the atmosphere contact surface. The mounting plates A and B are on the same plane as the axes of the stranded wire contact surface and the atmosphere contact surface, and are provided with fastening holes.
Temperature sensing fasteners are mounting screws. The passive temperature sensors A
and B are fastened on the self-heating wire through the fastening holes of the mounting plates A and B, and surround the self-heating wire.
The mounting plates A and B are rectangles with a length of Lab which is equal to Lw and a width larger than Dw-Dn+2hw. The mounting plates A and B are connected to the bottoms of the stranded wire contact surface and the atmosphere contact surface. The mounting plates A and B are on the same plane as the axes of the stranded wire contact surface and the atmosphere contact surface, and are provided with fastening holes.
Temperature sensing fasteners are mounting screws. The passive temperature sensors A
and B are fastened on the self-heating wire through the fastening holes of the mounting plates A and B, and surround the self-heating wire.
[0015] The open side panel is made of the same material as the sensing body, is installed on one side of the sensing body, and has a semicircular sector. The inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw. Open side panel mounting holes A are in one-to-one correspondence to side panel mounting holes A of the atmosphere contact surface in the sensing body in position. Open side panel mounting holes B are in one-to-one correspondence to side panel mounting holes B of the stranded wire contact surface in the sensing body in position. The open side panel is fastened to the sensing body with screws through the open side panel mounting holes A and B, and a sealing gasket is added between the open side panel and the sensing body, so that when the open side panel is mounted to the sensing body, the connection is airtight without gaps. The open side panel is provided with a temperature control installation port for connecting the temperature Date Recue/Date Received 2022-02-03 control connecting tube.
[0016] The closed side panel is made of the same material as the sensing body, is installed on one side of the sensing body, and has a semicircular sector. The inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw. Closed side panel mounting holes A are in one-to-one correspondence to side panel mounting holes A of the atmosphere contact surface in the sensing body in position. Closed side panel mounting holes B are in one-to-one correspondence to side panel mounting holes B of the stranded wire contact surface in the sensing body in position. The closed side panel is fastened to the sensing body with screws through the closed side panel mounting holes A and B, and a sealing gasket is added between the closed side panel and the sensing body, so that when the closed side panel is mounted to the sensing body, the connection is airtight without gaps.
[0017] The passive temperature control resistor comprises a resistance wire, a contact brush, a conductive rod, an insulating rod, a resistor connecting terminal A and a resistor connecting terminal B. A resistor housing is made of an insulating material and is cylindrical, the resistance wire is arranged on an inner wall, the resistance wire is linear and tightly clings to an inner side of the resistor housing in a spiral way, and the resistor connecting terminal B is in short-circuit connection with the temperature control resistor connecting end B. The contact brush is made of a thin cylindrical metal material, and is in close contact with the resistance wire and slides in the resistance wire. The conductive rod is made of a metal material, one end of which is connected with the resistance brush, and the other end is in short-circuit connection with the resistor connecting terminal B. The insulating rod is made of an insulating material and connected with the conductive rod.
The insulating rod is hermetically installed in a temperature control chamber and can move freely in the temperature control chamber. The temperature control chamber is provided with a connecting tube interface which communicates with a liquid expansion Date Recue/Date Received 2022-02-03 space. A temperature control resistor control end is connected to the connecting tube interface, and the resistor connecting terminal A is in short-circuit connection with the temperature control resistor connecting end A.
The insulating rod is hermetically installed in a temperature control chamber and can move freely in the temperature control chamber. The temperature control chamber is provided with a connecting tube interface which communicates with a liquid expansion Date Recue/Date Received 2022-02-03 space. A temperature control resistor control end is connected to the connecting tube interface, and the resistor connecting terminal A is in short-circuit connection with the temperature control resistor connecting end A.
[0018] The temperature control connecting tube is made of a material with a small coefficient of cubical expansion and is a flexible tube. There are totally three temperature control connecting tubes, one end of which is hermetically connected to one end of a T-joint, and the other end is connected to the connecting tube interface of the passive temperature control resistor. A temperature sensing control end is the end, connected to the temperature control connecting tube, of the T-joint, the other end of the temperature control connecting tube is connected to a temperature control installation port of the open side panel of the passive temperature sensor A, and the other end of the temperature control connecting tube is connected to the temperature control installation port of the open side panel of the passive temperature sensor B.
[0019] The ice melting control switch is a circuit breaker, the model of which is ZWG32-12/630A-1250A. Transformer oil serves as the temperature control liquid with a large coefficient of cubical expansion in a passive sensor cavity.
[0020] According to an ice melting control method of the passive intelligent ice melting control device, the self-heating wire is sandwiched between the passive temperature sensor A and the passive temperature sensor B, and except for the temperature control installation hole of the open side panel, the rest part of the passive temperature sensor is sealed to form a temperature sensing cavity; the cavity contains temperature control liquid with a large coefficient of cubical expansion; when the temperature of the sensing body increases, the temperature control liquid expands, the expanded liquid flows into the temperature control chamber of the passive temperature control resistor through the temperature control connecting tube, as more and more temperature control liquid flows into the temperature control chamber, the insulating rod moves to the left, pushing Date Recue/Date Received 2022-02-03 the contact brush to move to the left, the resistance wire between the resistance connecting terminal A and the contact brush becomes shorter, and the resistance between the resistance connecting terminal A and the resistance connecting terminal B
becomes smaller; similarly, when the temperature of the sensing body decreases, the resistance between the resistor connecting terminal A and the resistor connecting terminal B
increases; and the resistance is changed along with the temperature change of the sensing body, the temperature of the self-heating wire is automatically sensed, and then the detected temperature of the traditional power transmission lines is sensed to complete the automatic ice melting process.
becomes smaller; similarly, when the temperature of the sensing body decreases, the resistance between the resistor connecting terminal A and the resistor connecting terminal B
increases; and the resistance is changed along with the temperature change of the sensing body, the temperature of the self-heating wire is automatically sensed, and then the detected temperature of the traditional power transmission lines is sensed to complete the automatic ice melting process.
[0021] A resistance calculation method for the resistance wire of the passive temperature control resistor is as follows:
[0022] the length of the self-heating wire between the traditional transmission wire A and the traditional transmission wire B is represented by L; the outer diameter of the outer conductor (1) of the self-heating wire is represented by Dw; the outer diameter of the inner conductor is represented by Dn; the thickness of an insulating layer of the self-heating wire is represented by dz; the resistivity of the inner conductor is represented by An; the maximum current flowing through the traditional transmission wire A is represented by IA;
[0023] all units are basic metric units: length unit: meter (m); time unit: second (sec); mass unit: kilogram (kg); temperature unit: Kelvin (k)
[0024] (1) calculate the resistance of the inner conductor which is represented by Rn:
A,= L
Rn= _______________________ (Ohm)
A,= L
Rn= _______________________ (Ohm)
[0025] 0.785=D,
[0026] (2) calculate the maximum power of the inner conductor which is represented by Winax, Date Recue/Date Received 2022-02-03
[0027] W = D = L =3500(Watt)
[0028] (3) calculate the maximum current of the inner conductor which is represented by Inmax I = Wmax nmax R,
[0029]
[0030] (4) calculate the minimum current of the outer conductor which is represented by Iwmin
[0031] Iwmin= IA-Inmax
[0032] (5) calculate the resistance of the resistance wire which is represented by Rdzs Rn = In max Rdzs =
[0033] Iw min
[0034] The invention has the beneficial effects that:
[0035] 1. By means of the technology of the invention, the temperature condition of the power transmission lines can be sensed without a power supply, and the problem that it is hard for an intelligent ice melting device to get power in use is solved;
[0036] 2. Passive sensing and passive intelligent control are realized in the ice melting process;
[0037] 3. Ice melting can be automatically stopped after it is sensed that ice melting has ended; and
[0038] 4. The temperature of the transmission wire is automatically controlled to stay within a proper range.
BRIEF DESCRIPTION OF THE DRAWINGS
BRIEF DESCRIPTION OF THE DRAWINGS
[0039] Fig. 1 is a schematic view of the appearance of a self-heating wire Date Recue/Date Received 2022-02-03 used in the invention.
[0040] Fig. 2 is a structural diagram of a self-heating wire used in the invention.
[0041] Fig. 3 is a structural diagram of a passive intelligent ice melting control device of the invention.
[0042] Fig. 4 is a structural diagram of a passive temperature sensor.
[0043] Fig. 5 is a schematic view of the external structure of a sensing body of a passive temperature sensor of the invention.
[0044] Fig. 6 is a front view of the sensing body of the passive temperature sensor of the invention.
[0045] Fig. 7 is a top view of the sensing body of the passive temperature sensor of the invention.
[0046] Fig. 8 is a structural diagram of an open side panel of the sensing body of the passive temperature sensor of the invention.
[0047] Fig. 9 is a structural diagram of a closed side panel of the sensing body of the passive temperature sensor of the invention.
[0048] Fig. 10 is a structural diagram of a passive temperature control resistor of the passive intelligent ice melting control device of the invention.
[0049] Fig. 11 is a front view of the assembly of a passive temperature control resistor, a sensing body and a self-heating wire in the passive intelligent ice melting control device of the invention.
[0050] Fig. 12 is a side view of the assembly of the passive temperature control resistor, the sensing body and the self-heating wire in the passive intelligent ice melting control device of the invention.
[0051] Fig. 13 is a geometric structure diagram of a self-heating wire in an embodiment of the invention.
Date Recue/Date Received 2022-02-03
Date Recue/Date Received 2022-02-03
[0052] In the figure, 1 outer conductor, 2 insulating and heat-conducting material, 3 inner conductor, 4 traditional transmission wire A, 5 passive temperature control resistor, 6 temperature control resistor connecting end A, 7 temperature control resistor connecting end B, 8 ice melting control switch, 9 control switch wire connecting end, 10 control switch outer conductor connecting end, 12 passive temperature sensor, 13 temperature sensing control end, 14-1-14-3 temperature control connecting tube, 15 temperature control resistor control end, 16 traditional transmission wire B, 17 mounting plate A, 18 open side panel, 19 sensing body, 20 closed side panel, 21 mounting plate B, 24 stranded wire contact surface, 25 atmosphere contact surface, 26-1, 26-2, ... 26-5 side panel mounting hole A, 27-1, 27-2, ... 27-5 side panel mounting hole B, 28-1, 28-2, ... 28-10 fastening hole, 29-1, 29-2, ... 29-5 open side panel mounting hole A, 30-1, 30-2, ... 30-5 open side panel mounting hole B, 31 temperature control mounting hole, 32-1, 32-2 ...
32-5 closed side panel mounting hole A, 33-1, 33-2, ... 33-5 closed side panel mounting hole B, 35 resistor connecting terminal A, 36 resistor connecting terminal B, 37 resistor housing, 38 resistance wire, 39 contact brush, 40 conductive rod, 41 insulating rod, 42 temperature control chamber, 43 liquid expansion space, 44 connecting tube interface, 50 self-heating wire, 51 passive temperature sensor A, 52 passive temperature sensor B, 53 temperature sensing fastener, 56 T-joint.
DETAILED DESCRIPTION OF THE INVENTION
32-5 closed side panel mounting hole A, 33-1, 33-2, ... 33-5 closed side panel mounting hole B, 35 resistor connecting terminal A, 36 resistor connecting terminal B, 37 resistor housing, 38 resistance wire, 39 contact brush, 40 conductive rod, 41 insulating rod, 42 temperature control chamber, 43 liquid expansion space, 44 connecting tube interface, 50 self-heating wire, 51 passive temperature sensor A, 52 passive temperature sensor B, 53 temperature sensing fastener, 56 T-joint.
DETAILED DESCRIPTION OF THE INVENTION
[0053] See Figs. 1, 2 and 3.
[0054] In this embodiment, a passive intelligent ice melting control device is arranged on a self-heating wire 50, and the self-heating wire 50 is a self-made heat conductor embedded with an insulating and heat-conducting material in the application CN201810370549.8. The two ends of the self-heating wire are connected with a traditional transmission wire A 4 and a traditional transmission wire B
Date Recue/Date Received 2022-02-03 16 respectively, and the length of the self-heating wire between the traditional transmission wire A and the traditional transmission wire B is represented by L.
Date Recue/Date Received 2022-02-03 16 respectively, and the length of the self-heating wire between the traditional transmission wire A and the traditional transmission wire B is represented by L.
[0055] The self-heating wire 50 is of a coaxial cable structure, which consists of an outer conductor 1, an insulating and heat-conducting material 2 and an inner conductor 3 from outside to inside in sequence. The inner conductor is cylindrical metal.
The insulating and heat-conducting material completely surrounds the outer periphery of the inner conductor, so that the inner and outer conductors are completely isolated to prevent short circuiting of the inner and outer conductors. The insulating and heat-conducting material is surrounded by the outer conductor which is made of a material with low resistivity.
The insulating and heat-conducting material completely surrounds the outer periphery of the inner conductor, so that the inner and outer conductors are completely isolated to prevent short circuiting of the inner and outer conductors. The insulating and heat-conducting material is surrounded by the outer conductor which is made of a material with low resistivity.
[0056] The passive intelligent ice melting control device consists of passive temperature sensors 12, a passive temperature control resistor 5 and an ice melting control switch 8. The passive temperature sensors 12 are connected with the passive temperature control resistor 5 through temperature control connecting tubes 14.
[0057] See Figs. 3, 10, 11 and 12.
[0058] The passive temperature control resistor 5 has two connection ports, one temperature control resistor connecting end A 6 is in short-circuit connection with the traditional transmission wire A 4, and the other temperature control resistor connecting end B 7 is in short-circuit connection with the outer conductor 1 of the self-heating wire.
The temperature control resistor connecting end A 6 of the passive temperature control resistor is in short-circuit connection with the traditional transmission wire A 4, and the temperature control resistor connecting end B 7 of the passive temperature control resistor 5 is in short-circuit connection with the outer conductor 1 of the self-heating wire.
A control switch wire connecting end 9 of the ice melting control switch 8 is in short-circuit connection with the traditional transmission wire A 4, and a control switch outer conductor connecting end 10 of the ice melting control switch is in short-circuit Date Recue/Date Received 2022-02-03 connection with the outer conductor 1 of the self-heating wire.
The temperature control resistor connecting end A 6 of the passive temperature control resistor is in short-circuit connection with the traditional transmission wire A 4, and the temperature control resistor connecting end B 7 of the passive temperature control resistor 5 is in short-circuit connection with the outer conductor 1 of the self-heating wire.
A control switch wire connecting end 9 of the ice melting control switch 8 is in short-circuit connection with the traditional transmission wire A 4, and a control switch outer conductor connecting end 10 of the ice melting control switch is in short-circuit Date Recue/Date Received 2022-02-03 connection with the outer conductor 1 of the self-heating wire.
[0059] The passive temperature control resistor comprises a resistance wire 38, a contact brush 39, a conductive rod 40, an insulating rod 41, a resistor connecting terminal A 35 and a resistor connecting terminal B 36. A resistor housing 37 is made of an insulating material and is cylindrical, the resistance wire 38 is arranged on an inner wall, the resistance wire is linear and tightly clings to an inner side of the resistor housing in a spiral way, and an end, close to the self-heating wire, of the resistance wire is in short-circuit connection with the inner conductor 3 of the self-heating wire. The contact brush 39 is made of a thin cylindrical metal material, and is in close contact with the resistance wire and slides in the resistance wire. The conductive rod 40 is made of a metal material, one end of which is connected with the resistance brush 39, and the other end is in short-circuit connection with the resistor connecting terminal B 36.
The insulating rod 41 is made of an insulating material and connected with the conductive rod 40. The insulating rod is hermetically installed in a temperature control chamber 42 and can move freely in the temperature control chamber. The temperature control chamber 42 is provided with a connecting tube interface 44 which communicates with a liquid expansion space 43. The temperature control connecting tube 14 is connected to the connecting tube interface 44. In this embodiment, the contact brush is made of thin cylindrical copper and the conductive rod is made of metallic copper.
The insulating rod 41 is made of an insulating material and connected with the conductive rod 40. The insulating rod is hermetically installed in a temperature control chamber 42 and can move freely in the temperature control chamber. The temperature control chamber 42 is provided with a connecting tube interface 44 which communicates with a liquid expansion space 43. The temperature control connecting tube 14 is connected to the connecting tube interface 44. In this embodiment, the contact brush is made of thin cylindrical copper and the conductive rod is made of metallic copper.
[0060] See Figs. 3, 9, 11 and 12.
[0061] The passive temperature sensors 12 include a passive temperature sensor A
51 and a passive temperature sensor B 52 with the same structure, each of which is composed of a mounting plate A 17, a mounting plate B 21, a sensing body 19, an open side panel 18, a closed side panel 20 and a temperature sensing control end 13.
The self-heating wire is tightly wrapped in the passive temperature sensors.
One end of the temperature control connecting tube 14 is connected to the temperature sensing control Date Recue/Date Received 2022-02-03 end 13 of the passive temperature sensor 12, and the other end is connected to a temperature control resistor control end 15 of the passive temperature control resistor 5.
51 and a passive temperature sensor B 52 with the same structure, each of which is composed of a mounting plate A 17, a mounting plate B 21, a sensing body 19, an open side panel 18, a closed side panel 20 and a temperature sensing control end 13.
The self-heating wire is tightly wrapped in the passive temperature sensors.
One end of the temperature control connecting tube 14 is connected to the temperature sensing control Date Recue/Date Received 2022-02-03 end 13 of the passive temperature sensor 12, and the other end is connected to a temperature control resistor control end 15 of the passive temperature control resistor 5.
[0062] The mounting plate A, the mounting plate B, the stranded wire contact surface and the atmosphere contact surface are all made of materials with good thermal conductivity and a small coefficient of cubical expansion, such as metal materials, aluminum in this embodiment. The mounting plate A 17, the mounting plate B 21, the stranded wire contact surface 24, and the atmosphere contact surface 25 are welded or metal-reversed.
[0063] In the sensing body, the stranded wire contact surface 24 is semicircular, there are several side panel mounting holes B on both sides, with an outer diameter of Dn and a thickness of hn, and the value of Dn-2hn is equal to the outer diameter of the self-heating wire. The atmosphere contact surface 25 is semicircular, and there are several side panel mounting holes A on both sides outside the stranded wire contact surface, with an inner diameter of Dw and a thickness of hw. The mounting plates A and B are rectangles with a length of Lw and a width larger than Dw+2hw, and connected to the bottoms of the stranded wire contact surface and the atmosphere contact surface.
The mounting plates A 17 and B 21 are on the same plane as the axes of the stranded wire contact surface 24 and the atmosphere contact surface 25, and are provided with fastening holes 28-1, 28-2, ... 28-10. Temperature sensing fasteners 53-1-53-4 are provided.
The mounting plates A 17 and B 21 are on the same plane as the axes of the stranded wire contact surface 24 and the atmosphere contact surface 25, and are provided with fastening holes 28-1, 28-2, ... 28-10. Temperature sensing fasteners 53-1-53-4 are provided.
[0064] The open side panel 18 is made of the same material as the sensing body 19, is installed on one side of the sensing body, and has a semicircular sector.
The inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw. Open side panel mounting holes A 29-1-29-5 are in one-to-one correspondence to side panel mounting holes A 26-1-26-5 of the atmosphere contact surface 25 in the sensing body in position. Open side panel mounting holes B
30-1¨ 30-5 are in one-to-one correspondence to side panel mounting holes B 27-1-27-5 of Date Recue/Date Received 2022-02-03 the stranded wire contact surface 24 in the sensing body in position. The open side panel 18 is fastened to the sensing body with screws through the open side panel mounting holes A 29-1-29-5 and B 30-1¨ 30-5, and a sealing gasket is added between the open side panel 18 and the sensing body 19, so that when the open side panel is mounted to the sensing body, the connection is airtight without gaps.
The inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw. Open side panel mounting holes A 29-1-29-5 are in one-to-one correspondence to side panel mounting holes A 26-1-26-5 of the atmosphere contact surface 25 in the sensing body in position. Open side panel mounting holes B
30-1¨ 30-5 are in one-to-one correspondence to side panel mounting holes B 27-1-27-5 of Date Recue/Date Received 2022-02-03 the stranded wire contact surface 24 in the sensing body in position. The open side panel 18 is fastened to the sensing body with screws through the open side panel mounting holes A 29-1-29-5 and B 30-1¨ 30-5, and a sealing gasket is added between the open side panel 18 and the sensing body 19, so that when the open side panel is mounted to the sensing body, the connection is airtight without gaps.
[0065] A temperature control installation port on the open side panel is used for connecting the temperature control connecting tube.
[0066] The closed side panel 20 is made of the same material as the sensing body 19, is installed on one side of the sensing body, and has a semicircular sector. The inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw. Closed side panel mounting holes A 32-1-32-5 are in one-to-one correspondence to side panel mounting holes A 26-26-5 of the atmosphere contact surface 25 in the sensing body in position. Closed side panel mounting holes B
33-1-33-5 are in one-to-one correspondence to side panel mounting holes B 27-1-27-5 of the stranded wire contact surface 24 in the sensing body in position. The closed side panel is fastened to the sensing body with screws through the closed side panel mounting holes A 32-1-32-5 and B 33-1-33-5, and a sealing gasket is added between the closed side panel 20 and the sensing body 19, so that when the closed side panel is mounted to the sensing body, the connection is airtight without gaps.
33-1-33-5 are in one-to-one correspondence to side panel mounting holes B 27-1-27-5 of the stranded wire contact surface 24 in the sensing body in position. The closed side panel is fastened to the sensing body with screws through the closed side panel mounting holes A 32-1-32-5 and B 33-1-33-5, and a sealing gasket is added between the closed side panel 20 and the sensing body 19, so that when the closed side panel is mounted to the sensing body, the connection is airtight without gaps.
[0067] See Figs. 3, 11 and 12.
[0068] The passive temperature control resistor, the sensing body and the self-heating wire are installed in such a way that the passive temperature sensor 12 tightly wraps the self-heating wire, one end of the temperature control connecting tube 14 is connected to the temperature sensing control end 13 of the passive temperature sensor 12, and the other end is connected to the temperature control resistance control end 15 of the passive temperature control resistor 5. The temperature control connecting tube Date Recue/Date Received 2022-02-03 14 is made of a material with a small coefficient of cubical expansion and is a flexible tube. There are three temperature control connecting tubes 14-1-14-3, one end of which is hermetically connected to one end of a T-joint 56, the other end of the temperature control connecting tube 14-1 is connected to the connecting tube interface 44 of the passive temperature control resistor, the other end of the temperature control connecting tube 14-2 is connected to the temperature control installation port 31 of the open side panel of the passive temperature sensor A, and the other end of the temperature control connecting tube 14-3 is connected to the temperature control installation port 31 of the open side panel of the passive temperature sensor B. The self-heating wire is sandwiched between the passive temperature sensor A and the passive temperature sensor B, and the temperature sensing fasteners are screws and nuts. The screws pass through the fastening holes of the passive temperature sensor A and the passive temperature sensor B
to fasten the passive temperature sensor A and the passive temperature sensor B together and clamp the self-heating wire.
to fasten the passive temperature sensor A and the passive temperature sensor B together and clamp the self-heating wire.
[0069] The ice melting control switch 8 has two connection ports, the control switch wire connecting end 9 is in short-circuit connection with the traditional transmission wire A 4, and the control switch outer conductor connecting end 10 is in short-circuit connection with the outer conductor 1 of the self-heating wire.
The control switch is a circuit breaker, and this embodiment adopts ZWG32-12/630A-1250A of Sichuan Shuyue Electric Co., Ltd.
The control switch is a circuit breaker, and this embodiment adopts ZWG32-12/630A-1250A of Sichuan Shuyue Electric Co., Ltd.
[0070] The passive intelligent ice melting control device of the invention is used for ice melting control of transmission lines in such a way that the self-heating wire 50 is sandwiched between the passive temperature sensor A 51 and the passive temperature sensor B 52, and except for the temperature control installation hole of the open side panel, the rest part of the passive sensor is sealed to form a temperature sensing cavity; the cavity contains temperature control liquid with a large coefficient of cubical Date Recue/Date Received 2022-02-03 expansion, and transformer oil serves as the temperature control liquid with a large coefficient of cubical expansion in this embodiment; when the temperature of the sensing body increases, the temperature control liquid expands, the expanded liquid flows into the temperature control chamber 42 of the passive temperature sensor through the temperature control connecting tube 14, as more and more temperature control liquid flows into the temperature control chamber, the insulating rod 41 moves to the left, pushing the contact brush 39 to move to the left, the resistance wire between the resistance connecting terminal A and the contact brush becomes shorter, and the resistance between the resistance connecting terminal A and the resistance connecting terminal B
becomes smaller; similarly, when the temperature of the sensing body decreases, the resistance between the resistor connecting terminal A and the resistor connecting terminal B
increases; and the resistance is changed along with the temperature change of the sensing body, the temperature of the self-heating wire is automatically sensed, and then the detected temperature of the traditional power transmission lines is sensed to automatically complete the automatic ice melting process.
becomes smaller; similarly, when the temperature of the sensing body decreases, the resistance between the resistor connecting terminal A and the resistor connecting terminal B
increases; and the resistance is changed along with the temperature change of the sensing body, the temperature of the self-heating wire is automatically sensed, and then the detected temperature of the traditional power transmission lines is sensed to automatically complete the automatic ice melting process.
[0071] See Fig. 13.
[0072] A resistance calculation method for the resistance wire of the passive temperature control resistor is as follows: the length of the self-heating wire 50 between the traditional transmission wire A 4 and the traditional transmission wire B 16 is represented by L;
[0073] the outer diameter of the outer conductor 1 of the self-heating wire 50 is represented by Dw; the outer diameter of the inner conductor is represented by Dn;
the thickness of an insulating layer of the self-heating wire is represented by dz; the resistivity of the inner conductor is represented by An; the maximum current flowing through the traditional transmission wire A is represented by IA;
the thickness of an insulating layer of the self-heating wire is represented by dz; the resistivity of the inner conductor is represented by An; the maximum current flowing through the traditional transmission wire A is represented by IA;
[0074] all units are basic metric units: length unit: meter (m); time unit: second Date Recue/Date Received 2022-02-03 (sec); mass unit: kilogram (kg); temperature unit: Kelvin (k)
[0075] (1) calculate the resistance of the inner conductor which is represented by A = L
R= n (Ohm)
R= n (Ohm)
[0076] n 0.7850 D,72
[0077] (2) calculate the maximum power of the inner conductor which is represented by Wm.,
[0078] '' max = Dw = L = 350(Watt)
[0079] (3) calculate the maximum current of the inner conductor which is represented by Inmax / = W
max nmax Rn
max nmax Rn
[0080]
[0081] (4) calculate the minimum current of the outer conductor which is represented by Iwmin
[0082] Twmin= IA-Inmax
[0083] (5) calculate the resistance of the resistance wire which is represented by Rdzs Rn = /nmax Rdzs =
[0084] iwmin Date Recue/Date Received 2022-02-03
Claims (6)
1. A passive intelligent ice melting control device, characterized in that the passive intelligent ice melting control device is arranged on a self-heating wire, two ends of the self-heating wire are connected with power transmission lines respectively, the passive intelligent ice melting control device consists of passive temperature sensors (12), a passive temperature control resistor (5) and an ice melting control switch (8), and the passive temperature sensors (12) are connected with the passive temperature control resistor (5) through temperature control connecting tubes (14);
the passive temperature control resistor (5) has two connection ports, one temperature control resistor connecting end A (6) is in short-circuit connection with a transmission wire A (4), and the other temperature control resistor connecting end B (7) is in short-circuit connection with an outer conductor (1) of the self-heating wire;
the ice melting control switch (8) has two connection ports, a control switch wire connecting end (9) is in short-circuit connection with the transmission wire A
(4), and a control switch outer conductor connecting end (10) is in short-circuit connection with the outer conductor (1) of the self-heating wire;
the passive temperature sensors (12) include a passive temperature sensor A
(51) and a passive temperature sensor B (52) with the same structure, each of which is composed of a mounting plate A (17), a mounting plate B (21), a sensing body (19), an open side panel (18), a closed side panel (20) and a temperature sensing control end (13), the self-heating wire is wrapped in the passive temperature sensors, one end of the temperature control connecting tube (14) is connected to the temperature sensing control end (13) of the passive temperature sensor (12), and the other end is connected to a temperature control resistor control end (15) of the passive temperature control resistor (5);
the sensing body is cylindrical in sector, including a stranded wire contact surface (24) Date Recue/Date Received 2022-04-19 and an atmosphere contact surface (25), the stranded wire contact surface (24) and the atmosphere contact surface (25) are both semi-circular, the mounting plates A
and B, together with the stranded wire contact surface and the atmosphere contact surface, form a cylindrical sector closed space with a length of Lw, the open side panel (18) and the closed side panel (20) are installed on the two sides of the sensing body respectively, and except for a temperature control installation hole of the open side panel, the rest part is closed to form a sealed cavity, which is called a temperature sensing cavity and contains temperature control liquid with a large coefficient of cubical expansion; and the passive intelligent ice melting control device is installed at one end of the self-heating wire, an inner conductor (3) of the self-heating wire at an installation end is in short-circuit connection with the transmission wire A (4) at the installation end, and at an end, without the passive intelligent ice melting control device, of the self-heating wire, the inner conductor of the self-heating wire is in short-circuit connection with a transmission wire B (16) at this end after the inner conductor (3) and the outer conductor (1) are short-circuited.
the passive temperature control resistor (5) has two connection ports, one temperature control resistor connecting end A (6) is in short-circuit connection with a transmission wire A (4), and the other temperature control resistor connecting end B (7) is in short-circuit connection with an outer conductor (1) of the self-heating wire;
the ice melting control switch (8) has two connection ports, a control switch wire connecting end (9) is in short-circuit connection with the transmission wire A
(4), and a control switch outer conductor connecting end (10) is in short-circuit connection with the outer conductor (1) of the self-heating wire;
the passive temperature sensors (12) include a passive temperature sensor A
(51) and a passive temperature sensor B (52) with the same structure, each of which is composed of a mounting plate A (17), a mounting plate B (21), a sensing body (19), an open side panel (18), a closed side panel (20) and a temperature sensing control end (13), the self-heating wire is wrapped in the passive temperature sensors, one end of the temperature control connecting tube (14) is connected to the temperature sensing control end (13) of the passive temperature sensor (12), and the other end is connected to a temperature control resistor control end (15) of the passive temperature control resistor (5);
the sensing body is cylindrical in sector, including a stranded wire contact surface (24) Date Recue/Date Received 2022-04-19 and an atmosphere contact surface (25), the stranded wire contact surface (24) and the atmosphere contact surface (25) are both semi-circular, the mounting plates A
and B, together with the stranded wire contact surface and the atmosphere contact surface, form a cylindrical sector closed space with a length of Lw, the open side panel (18) and the closed side panel (20) are installed on the two sides of the sensing body respectively, and except for a temperature control installation hole of the open side panel, the rest part is closed to form a sealed cavity, which is called a temperature sensing cavity and contains temperature control liquid with a large coefficient of cubical expansion; and the passive intelligent ice melting control device is installed at one end of the self-heating wire, an inner conductor (3) of the self-heating wire at an installation end is in short-circuit connection with the transmission wire A (4) at the installation end, and at an end, without the passive intelligent ice melting control device, of the self-heating wire, the inner conductor of the self-heating wire is in short-circuit connection with a transmission wire B (16) at this end after the inner conductor (3) and the outer conductor (1) are short-circuited.
2. The passive intelligent ice melting control device according to Claim 1, characterized in that in the sensing body, the front view of the stranded wire contact surface (24) is semicircular, there are several side panel mounting holes B
(27-1 to 27-5) on both sides, with an outer diameter of Dn and a thickness of hn, and the value of Dn-2hn is equal to the outer diameter of the self-heating wire; the front view of the atmosphere contact surface (25) is semicircular, and there are several side panel mounting holes A (26-1 to 26-5) on both sides outside the stranded wire contact surface, with an inner diameter of Dw and a thickness of hw; the mounting plates A
and B are rectangles with a length of Lab which is equal to Lw and a width larger than Dw-Dn+2hw; the mounting plates A and B are connected to the bottoms of the stranded wire contact surface and the atmosphere contact surface; the mounting plates A
(17) and B (21) are on the same plane Date Recue/Date Received 2022-04-19 as the axes of the stranded wire contact surface (24) and the atmosphere contact surface (25), and are provided with fastening holes (28-1 to 28-10); temperature sensing fasteners (53-1 to 53-4) are mounting screws; and the passive temperature sensors A (51) and B (52) are fastened on the self-heating wire (50) through the fastening holes of the mounting plates A (17) and B (21), and surround the self-heating wire.
(27-1 to 27-5) on both sides, with an outer diameter of Dn and a thickness of hn, and the value of Dn-2hn is equal to the outer diameter of the self-heating wire; the front view of the atmosphere contact surface (25) is semicircular, and there are several side panel mounting holes A (26-1 to 26-5) on both sides outside the stranded wire contact surface, with an inner diameter of Dw and a thickness of hw; the mounting plates A
and B are rectangles with a length of Lab which is equal to Lw and a width larger than Dw-Dn+2hw; the mounting plates A and B are connected to the bottoms of the stranded wire contact surface and the atmosphere contact surface; the mounting plates A
(17) and B (21) are on the same plane Date Recue/Date Received 2022-04-19 as the axes of the stranded wire contact surface (24) and the atmosphere contact surface (25), and are provided with fastening holes (28-1 to 28-10); temperature sensing fasteners (53-1 to 53-4) are mounting screws; and the passive temperature sensors A (51) and B (52) are fastened on the self-heating wire (50) through the fastening holes of the mounting plates A (17) and B (21), and surround the self-heating wire.
3. The passive intelligent ice melting control device according to Claim 2, characterized in that the open side panel (18) is made of the same material as the sensing body (19), is installed on one side of the sensing body, and has a semicircular sector; the inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw; open side panel mounting holes A (29-1 to 29-5) are in one-to-one correspondence to side panel mounting holes A (26-1 to 26-5) of the atmosphere contact surface (25) in the sensing body in position;
open side panel mounting holes B (30-1 to 30-5) are in one-to-one correspondence to side panel mounting holes B (27-1 to 27-5) of the stranded wire contact surface (24) in the sensing body in position; the open side panel (18) is fastened to the sensing body with screws through the open side panel mounting holes A (29-1 to 29-5) and B (30-1 to 30-5), and a sealing gasket is added between the open side panel (18) and the sensing body (19), so that when the open side panel is mounted to the sensing body, the connection is airtight without gaps; and the open side panel (18) is provided with a temperature control installation port (31) for connecting the temperature control connecting tube (14);
the closed side panel (20) is made of the same material as the sensing body (19), is installed on one side of the sensing body, and has a semicircular sector; the inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw; closed side panel mounting holes A (32-1 to 32-5) are in one-to-one correspondence to side panel mounting holes A (26-1 to 26-5) of the atmosphere contact surface (25) in the sensing body in position; closed Date Recue/Date Received 2022-04-19 said panel mounting holes B (33-1 to 33-5) are in one-to-one correspondence to side panel mounting holes B (27-1 to 27-5) of the stranded wire contact surface (24) in the sensing body in position; and the closed side panel is fastened to the sensing body with screws through the closed side panel mounting holes A (32-1 to 32-5) and B (33-1 to 33-5), and a sealing gasket is added between the closed side panel (20) and the sensing body (19), so that when the closed side panel is mounted to the sensing body, the connection is airtight without gaps.
open side panel mounting holes B (30-1 to 30-5) are in one-to-one correspondence to side panel mounting holes B (27-1 to 27-5) of the stranded wire contact surface (24) in the sensing body in position; the open side panel (18) is fastened to the sensing body with screws through the open side panel mounting holes A (29-1 to 29-5) and B (30-1 to 30-5), and a sealing gasket is added between the open side panel (18) and the sensing body (19), so that when the open side panel is mounted to the sensing body, the connection is airtight without gaps; and the open side panel (18) is provided with a temperature control installation port (31) for connecting the temperature control connecting tube (14);
the closed side panel (20) is made of the same material as the sensing body (19), is installed on one side of the sensing body, and has a semicircular sector; the inner diameter of an inner semicircle of the sector is Dn-2hn, and the outer diameter of an outer semicircle of the sector is Dw+2hw; closed side panel mounting holes A (32-1 to 32-5) are in one-to-one correspondence to side panel mounting holes A (26-1 to 26-5) of the atmosphere contact surface (25) in the sensing body in position; closed Date Recue/Date Received 2022-04-19 said panel mounting holes B (33-1 to 33-5) are in one-to-one correspondence to side panel mounting holes B (27-1 to 27-5) of the stranded wire contact surface (24) in the sensing body in position; and the closed side panel is fastened to the sensing body with screws through the closed side panel mounting holes A (32-1 to 32-5) and B (33-1 to 33-5), and a sealing gasket is added between the closed side panel (20) and the sensing body (19), so that when the closed side panel is mounted to the sensing body, the connection is airtight without gaps.
4. The passive intelligent ice melting control device according to Claim 1, characterized in that the passive temperature control resistor comprises a resistance wire (38), a contact brush (39), a conductive rod (40), an insulating rod (41), a resistor connecting terminal A (35) and a resistor connecting terminal B (36); a resistor housing (37) is made of an insulating material and is cylindrical, the resistance wire (38) is arranged on an inner wall, the resistance wire is linear and tightly clings to an inner side of the resistor housing in a spiral way, and the resistor connecting terminal B
(36) is in short-circuit connection with the temperature control resistor connecting end B (7); the contact brush (39) is made of a thin cylindrical metal material, and is in close contact with the resistance wire and slides in the resistance wire; the conductive rod (40) is made of a metal material, one end of which is connected with the resistance brush (39), and the other end is in short-circuit connection with the resistor connecting terminal B
(36); the insulating rod (41) is made of an insulating material and connected with the conductive rod (40); the insulating rod is hermetically installed in a temperature control chamber (42) and can move freely in the temperature control chamber; the temperature control chamber (42) is provided with a connecting tube interface (44), and the connecting tube interface (44) communicates with a liquid expansion space (43); a temperature control resistor control end (15) is connected to the connecting tube interface (44), and the resistor connecting terminal A (35) is in short-circuit connection with the temperature control resistor connecting end A (6). 21 Date Recue/Date Received 2022-04-19
(36) is in short-circuit connection with the temperature control resistor connecting end B (7); the contact brush (39) is made of a thin cylindrical metal material, and is in close contact with the resistance wire and slides in the resistance wire; the conductive rod (40) is made of a metal material, one end of which is connected with the resistance brush (39), and the other end is in short-circuit connection with the resistor connecting terminal B
(36); the insulating rod (41) is made of an insulating material and connected with the conductive rod (40); the insulating rod is hermetically installed in a temperature control chamber (42) and can move freely in the temperature control chamber; the temperature control chamber (42) is provided with a connecting tube interface (44), and the connecting tube interface (44) communicates with a liquid expansion space (43); a temperature control resistor control end (15) is connected to the connecting tube interface (44), and the resistor connecting terminal A (35) is in short-circuit connection with the temperature control resistor connecting end A (6). 21 Date Recue/Date Received 2022-04-19
5. The passive intelligent ice melting control device according to Claim 1, characterized in that the temperature control connecting tube (14) is made of a material with a small coefficient of cubical expansion and is a flexible tube;
there are totally three temperature control connecting tubes (14-1 to 14-3), one end of which is hermetically connected to one end of a T-joint (56), and the other end of the temperature control connecting tube (14-1) is connected to the connecting tube interface (44) of the passive temperature control resistor; and a temperature sensing control end (13) is the end, connected to the temperature control connecting tube (14-1), of the T-joint (56), the other end of the temperature control connecting tube (14-2) is connected to a temperature control installation port (31) of the open side panel of the passive temperature sensor A (51), and the other end of the temperature control connecting tube (14-3) is connected to the temperature control installation port (31) of the open side panel of the passive temperature sensor B (51).
there are totally three temperature control connecting tubes (14-1 to 14-3), one end of which is hermetically connected to one end of a T-joint (56), and the other end of the temperature control connecting tube (14-1) is connected to the connecting tube interface (44) of the passive temperature control resistor; and a temperature sensing control end (13) is the end, connected to the temperature control connecting tube (14-1), of the T-joint (56), the other end of the temperature control connecting tube (14-2) is connected to a temperature control installation port (31) of the open side panel of the passive temperature sensor A (51), and the other end of the temperature control connecting tube (14-3) is connected to the temperature control installation port (31) of the open side panel of the passive temperature sensor B (51).
6. The passive intelligent ice melting control device according to Claim 1, characterized in that the ice melting control switch (8) is a circuit breaker, and transformer oil serves as the temperature control liquid with a large coefficient of cubical expansion in a passive sensor cavity.
Date Recue/Date Received 2022-04-19
Date Recue/Date Received 2022-04-19
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| CN201911088567.8A CN110676790A (en) | 2019-11-08 | 2019-11-08 | Passive intelligent ice melting control equipment and ice melting control method thereof |
| CN201911088567.8 | 2019-11-08 | ||
| PCT/CN2020/114813 WO2021088512A1 (en) | 2019-11-08 | 2020-09-11 | Passive intelligent ice melting control device and ice melting control method thereof |
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| CN110676790A (en) * | 2019-11-08 | 2020-01-10 | 四川大学 | Passive intelligent ice melting control equipment and ice melting control method thereof |
| CN113507083B (en) * | 2021-07-14 | 2022-06-24 | 四川大学 | Three-phase passive anti-icing and de-icing resistance type control equipment for strain tower |
| CN113507084B (en) * | 2021-07-14 | 2022-05-17 | 四川大学 | Single-phase resistance type passive anti-icing and de-icing control equipment for strain tower |
| CN113517667B (en) * | 2021-07-14 | 2022-08-19 | 四川大学 | Nondestructive single-phase anti-icing and de-icing control equipment based on insulated gate bipolar transistor |
| CN113541081B (en) * | 2021-07-14 | 2022-08-19 | 四川大学 | Lossless single-phase anti-icing and de-icing control equipment based on thyristor |
| CN113507082B (en) * | 2021-07-14 | 2022-05-13 | 四川大学 | Single-phase passive anti-icing and de-icing resistance type control equipment for strain tower |
| CN113507081B (en) * | 2021-07-14 | 2022-06-21 | 四川大学 | Passive lossless single-phase anti-icing and de-icing control equipment for strain tower |
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| BE727114A (en) * | 1969-01-20 | 1969-07-01 | ||
| RU2220485C1 (en) * | 2002-06-03 | 2003-12-27 | Уфимский государственный авиационный технический университет | Ice mass and end-of-ice-melting indicator |
| US20100243633A1 (en) * | 2009-03-24 | 2010-09-30 | Tung Huynh | Power Line De-Icing Apparatus |
| GB2498006B (en) * | 2011-12-22 | 2014-07-09 | Rolls Royce Plc | Gas turbine engine systems |
| CN103521281B (en) * | 2013-10-23 | 2015-10-07 | 中国科学院声学研究所 | Temperature control liquid-transfering device |
| CN203839895U (en) * | 2014-05-23 | 2014-09-17 | 国家电网公司 | Automatic control anti-freezing power transmission line |
| GB2548364B (en) * | 2016-03-15 | 2019-03-06 | Aflex Hose Ltd | Fire resistant flexible hose |
| CN206433205U (en) * | 2016-09-30 | 2017-08-22 | 四川大学 | It is a kind of from ice-melt conductor and its ice-melting device |
| CN108366442B (en) * | 2018-04-23 | 2023-08-15 | 四川大学 | Self-made heat conductor heating equipment embedded with insulating heat conducting material and implementation method thereof |
| CN109060032B (en) * | 2018-08-20 | 2023-08-08 | 四川大学 | On-line monitoring equipment and detection method for self-heating wire embedded with insulating material |
| CN211239259U (en) * | 2019-11-08 | 2020-08-11 | 四川大学 | Passive intelligent ice melting control equipment |
| CN110676790A (en) * | 2019-11-08 | 2020-01-10 | 四川大学 | Passive intelligent ice melting control equipment and ice melting control method thereof |
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| EEER | Examination request |
Effective date: 20210716 |
|
| EEER | Examination request |
Effective date: 20210716 |