CN113709926B - Series heating cable and production device thereof - Google Patents
Series heating cable and production device thereof Download PDFInfo
- Publication number
- CN113709926B CN113709926B CN202110981299.3A CN202110981299A CN113709926B CN 113709926 B CN113709926 B CN 113709926B CN 202110981299 A CN202110981299 A CN 202110981299A CN 113709926 B CN113709926 B CN 113709926B
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- Prior art keywords
- cooling
- pipe
- conveying
- heating cable
- cooling box
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a series heating cable, wherein an insulating layer is sleeved on the outer surface of a core wire, an outer sheath is sleeved on the outer surface of the insulating layer, which is far away from the core wire, a shielding layer is sleeved on one end of the outer sheath, which is far away from the outer surface of the insulating layer, a production device of the series heating cable is provided, a blowing device for mixing cooling liquid is arranged at the top of a supporting frame, the bottom of the blowing device penetrates through the bottom of a cooling box and extends to the inside of the cooling box, and a wind cooling device for cooling and conveying the cable is fixedly arranged at the top of a baffle plate. The invention uses the core wire as a heating product, can pass current on the core wire with a certain resistance, and the core wire emits joule heat, and the resistance of unit length and the passing current are equal in the whole length, and the heating values of all parts are equal, so that the invention is suitable for heat tracing and heat preservation of long-distance pipelines and utilizes a power supply point to supply power.
Description
Technical Field
The invention relates to the technical field of cable processing, in particular to a serial heating cable and a production device thereof.
Background
The heating cable is mainly an electric wire and cable for life heating, plant cultivation, pipeline heat preservation and the like. The heating cable is manufactured by adopting a single or a plurality of alloy heating wires as a heating source, adopting high-purity high-temperature electrofusion crystalline magnesium oxide as a heat-conducting insulator and adopting seamless continuous stainless steel or copper tubes as a sheath and adopting a special production process.
The heating cable needs to be cooled in the process of manufacturing the heating cable, a certain auxiliary agent is usually added into the cooling water in the cooling process to prevent the cooling water from being damaged in the cooling process, the cooling water is usually stirred in the prior cooling device, and the outer protective sleeve is possibly damaged due to uncooled protective sleeves in the process of conveying the heating cable, so that the serial heating cable and the production device thereof are obtained.
Disclosure of Invention
The invention aims to provide a serial heating cable and a production device thereof, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a series connection formula heating cable, includes the heart yearn, the insulating layer has been cup jointed to the surface of heart yearn, the outer surface that the heart yearn was kept away from to the insulating layer has cup jointed the oversheath, the shielding layer has been cup jointed to the one end that the insulating layer outward surface was kept away from to the oversheath.
Preferably, the insulating layer is made of fluoroplastic.
Preferably, the production device of the serial heating cable comprises a cooling box, a supporting frame is fixedly arranged at the bottom of the cooling box, a blowing device for mixing cooling liquid is arranged at the top of the supporting frame, the bottom of the blowing device penetrates through the bottom of the cooling box and extends to the inside of the cooling box, baffles for conveying cables are fixedly arranged at two sides of the inner wall of the cooling box, a wind cooling device for cooling and conveying the cables is fixedly arranged at the top of the baffles, a first mounting plate is fixedly arranged at the top of the inner wall of the cooling box, and a first guide wheel is rotatably arranged at the top of the first mounting plate.
Preferably, the blowing device comprises an air pump, a first limiting pipe, a first air outlet pipe, a three-way valve, a second air outlet pipe, a shunt pipe and a check valve, wherein the air pump is fixedly arranged at the top of the supporting frame, the first limiting pipe is fixedly arranged at the bottom of the cooling box, the output end of the air pump is fixedly communicated with the first air outlet pipe, one end of the first air outlet pipe, which is far away from the air pump, penetrates through the inside of the first limiting pipe and extends to the inside of the cooling box, the outer surface of the first air outlet pipe is fixedly communicated with the second air outlet pipe through the three-way valve, the shunt pipe is fixedly communicated with the outer surface of the second air outlet pipe through a plurality of groups of three-way valves, and the check valve for preventing liquid from flowing backwards is arranged on the outer surface of the first air outlet pipe.
Preferably, the wind cooling device is formed by collecting apron, third mounting panel, first conveyer pipe, bracing piece, fourth mounting panel, delivery block, conveyer trough and second conveyer pipe, the bottom fixedly connected with third mounting panel of collecting apron both sides, third mounting panel and collection apron are installed in the top of baffle through the fixed screw nail, the fixed intercommunication of one side of collecting the apron has first conveyer pipe, the bracing piece sets up to "L" shape, and the equal fixedly connected with fourth mounting panel in both ends of bracing piece one side, fourth mounting panel and bracing piece pass through fixed screw nail fixed mounting in one side of cooler bin inner wall, the delivery block that the top fixedly connected with rubber material of bracing piece was made, one side of delivery block runs through and has seted up curved conveyer trough, one side of cooler bin inner wall and the inside of bracing piece all run through and have been seted up the second conveyer pipe that is used for gas to carry, the bottom of delivery block is run through at the top of second conveyer pipe and extend to the bottom of conveyer trough, the one end that the conveyer trough was kept away from to the second conveyer pipe and the one end that the first conveyer pipe kept away from the collecting the apron pass through fixed flange fixed intercommunication.
Preferably, the surface of baffle and the position that corresponds conveyer trough one side and first leading wheel one side respectively all run through and have seted up the wire hole, the bottom of baffle and the position that corresponds the wire hole all fixedly connected with second mounting panel, the second leading wheel is installed in the bottom rotation of second mounting panel, the top of baffle and the position that corresponds the collection apron run through and are provided with the filter screen, cooling tank's inside is filled with cooling water and auxiliary agent, and the height of filling cooling water is higher than the bottom of second leading wheel, heating cable's one end passes the inside of conveyer trough to extend to the bottom of baffle through the wire hole, heating cable passes the bottom of two sets of second leading wheels afterwards, and overlap joint in the surface of first leading wheel through another set of wire hole.
Preferably, a water outlet pipe is arranged at the bottom of one side of the cooling box, one end of the water outlet pipe penetrates through one side of the cooling box and extends to the inside of the cooling box, and a water drain valve is arranged on the outer surface of the cooling box.
Preferably, the outer surface of second outlet duct has cup jointed the second spacing pipe of symmetric distribution, the surface fixedly connected with reinforcing rod of second spacing pipe, the one end fixed mounting in the bottom of cooling tank inner wall is kept away from to the reinforcing rod.
Compared with the prior art, the invention has the following beneficial effects:
the invention uses the core wire as a heating product, can pass current on the core wire with a certain resistance, and the core wire emits joule heat, and the resistance of unit length and the passing current are equal in the whole length, and the heating values of all parts are equal, so that the invention is suitable for heat tracing and heat preservation of long-distance pipelines and utilizes a power supply point to supply power;
the air blowing device can blow air into the cooling box, the air blown out in the air blowing process can play a certain boiling state in the cooling liquid, so that the cooling liquid and the auxiliary agent are fully mixed, the air generated by the air pump can be collected in a concentrated mode through the air blowing device, and is conveyed to the top of the conveying groove through the first conveying pipe and the second conveying pipe, the heating cable after production can be primarily cooled by using cold cutting air, the heating cable can be jacked up in the conveying groove, the contact area between the heating cable and the conveying block after production is reduced, and uncooled outer jackets are prevented from being adhered to the inside of the conveying block.
Drawings
FIG. 1 is a schematic perspective view of a heating cable according to the present invention;
FIG. 2 is a schematic diagram of a front cross-sectional structure of a production apparatus of the present invention;
FIG. 3 is an enlarged schematic view of the structure A of the present invention;
FIG. 4 is an enlarged schematic view of the structure B of the present invention;
fig. 5 is a schematic diagram of a connection structure of a side cross-sectional view of a support bar and a transport block according to the present invention.
In the figure: 1 core wire, 2 insulating layers, 3 oversheath, 4 shielding layers, 5 cooling boxes, 6 supporting frames, 7 blowing devices, 8 baffles, 9 wind cooling devices, 10 first mounting plates, 11 first guide wheels, 12 water outlet pipes, 13 water discharge valves, 14 air pumps, 15 first limiting pipes, 16 first air outlet pipes, 17 three-way valves, 18 second air outlet pipes, 19 shunt pipes, 20 check valves, 21 wire passing holes, 22 second mounting plates, 23 second guide wheels, 24 filter screens, 25 collecting cover plates, 26 third mounting plates, 27 first conveying pipes, 28 supporting rods, 29 fourth mounting plates, 30 conveying blocks, 31 conveying grooves, 32 second conveying pipes, 33 fixed flange plates, 34 reinforcing rods and 35 second limiting pipes.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-5, the present invention provides a technical solution: the utility model provides a series connection formula heating cable, includes heart yearn 1, insulating layer 2 has been cup jointed to the surface of heart yearn 1, insulating layer 2 has cup jointed oversheath 3 away from the surface of heart yearn 1, shielding layer 4 has been cup jointed to the one end that insulating layer 2 surface was kept away from to oversheath 3.
Preferably, the insulating layer 2 is made of fluoroplastic, the core wire 1 is used as a heat-generating product, current can be passed through the core wire 1 with a certain resistance, joule heat can be emitted from the core wire 1, and the resistance per unit length and the passing current are equal in the whole length, so that the heat productivity is equal everywhere, because the insulating layer can be suitable for heat tracing and heat insulation of long-distance pipelines, and power is supplied by one power supply point.
Preferably, a serial heating cable's apparatus for producing, including cooling tank 5, cooling tank 5's bottom fixed mounting has support frame 6, the top of support frame 6 is provided with the blowing device 7 that is used for cooling liquid to mix, the bottom of blowing device 7 runs through cooling tank 5's bottom and extends to cooling tank 5's inside, cooling tank 5 inner wall's both sides fixed mounting has baffle 8 that are used for cable to carry, the top fixed mounting of baffle 8 has wind-force cooling device 9 that are used for cable cooling to carry, the top fixed mounting of cooling tank 5 inner wall has first mounting panel 10, first leading wheel 11 is installed in the top rotation of first mounting panel 10.
Preferably, the blowing device 7 is composed of an air pump 14, a first limiting pipe 15, a first air outlet pipe 16, a three-way valve 17, a second air outlet pipe 18, a shunt pipe 19 and a check valve 20, the air pump 14 is fixedly installed at the top of the supporting frame 6, the first limiting pipe 15 is fixedly installed at the bottom of the cooling box 5, the output end of the air pump 14 is fixedly communicated with the first air outlet pipe 16, one end of the first air outlet pipe 16 far away from the air pump 14 penetrates through the inside of the first limiting pipe 15 and extends to the inside of the cooling box 5, the outer surface of the first air outlet pipe 16 is fixedly communicated with the second air outlet pipe 18 through the three-way valve 17, the shunt pipe 19 is fixedly communicated with the outer surface of the second air outlet pipe 18 through a plurality of groups of three-way valves 17, the check valve 20 for preventing liquid backflow is arranged on the outer surface of the first air outlet pipe 16, the blowing device 7 can blow air into the inside of the cooling box 5, and the blown air in the process of blowing air can play a certain boiling state in the cooling liquid, so that the cooling liquid and the auxiliary agent are fully mixed.
Preferably, the wind cooling device 9 is composed of a collecting cover plate 25, a third mounting plate 26, a first conveying pipe 27, a supporting rod 28, a fourth mounting plate 29, a conveying block 30, a conveying groove 31 and a second conveying pipe 32, wherein the bottom of two sides of the collecting cover plate 25 is fixedly connected with the third mounting plate 26, the third mounting plate 26 and the collecting cover plate 25 are mounted on the top of the baffle plate 8 through fixing screw nails, one side of the collecting cover plate 25 is fixedly communicated with the first conveying pipe 27, the supporting rod 28 is L-shaped, two ends of one side of the supporting rod 28 are fixedly connected with the fourth mounting plate 29, the fourth mounting plate 29 and the supporting rod 28 are fixedly mounted on one side of the inner wall of the cooling box 5 through fixing screw nails, the top of the supporting rod 28 is fixedly connected with the conveying block 30 made of rubber materials, one side of the conveying block 30 is penetrated and provided with an arc-shaped conveying groove 31, the second conveying pipe 32 for conveying gas is arranged on one side of the inner wall of the cooling box 5 and the inside of the supporting rod 28 in a penetrating way, the top of the second conveying pipe 32 penetrates through the bottom of the conveying block 30 and extends to the bottom of the conveying groove 31, one end of the second conveying pipe 32 far away from the conveying groove 31 and one end of the first conveying pipe 27 far away from the collecting cover plate 25 are fixedly communicated through the fixed flange plate 33, the air generated by the air pump 14 can be collected intensively by the arrangement of the air cooling device 9 and conveyed to the top of the conveying groove 31 through the first conveying pipe 27 and the second conveying pipe 32, the arrangement can not only utilize cold cutting wind to perform primary cooling on the produced heating cable, but also enable the heating cable to jack up in the conveying groove 31, so that the contact area between the heating cable and the conveying block 30 after production is completed is reduced, the uncooled outer jacket is prevented from sticking to the interior of the transport block 30.
Preferably, the surface of baffle 8 and the position that corresponds conveyer trough 31 one side and first leading wheel 11 one side respectively all runs through and has seted up wire hole 21, the bottom of baffle 8 and the position that corresponds wire hole 21 all fixedly connected with second mounting panel 22, second leading wheel 23 is installed in the rotation of the bottom of second mounting panel 22, the top of baffle 8 and the position that corresponds collection apron 25 run through and are provided with filter screen 24, cooling water and auxiliary agent are filled to the inside of cooling tank 5, and the height of filling is higher than the bottom of second leading wheel 23, the one end of heating cable passes the inside of conveyer trough 31 to extend to the bottom of baffle 8 through wire hole 21, and the heating cable passes the bottom of two sets of second leading wheels 23 afterwards, and overlap joint in the surface of first leading wheel 11 through another set of wire hole 21.
Preferably, the bottom of cooling tank 5 one side is provided with outlet pipe 12, one end of outlet pipe 12 runs through one side of cooling tank 5 and extends to the inside of cooling tank 5, the surface of cooling tank 5 is provided with water drain valve 13, and the setting of outlet pipe 12 and water drain valve 13 can conveniently put into and discharge cooling water and cooling auxiliary agent in the inside of cooling tank 5.
Preferably, the second spacing pipe 35 of symmetric distribution has been cup jointed to the surface of second outlet duct 18, the surface fixedly connected with stiffening rod 34 of second spacing pipe 35, the one end fixed mounting that second spacing pipe 35 was kept away from to stiffening rod 34 is in the bottom of cooling tank 5 inner wall, and the setting of stiffening rod 34 and second spacing pipe 35 can play certain supporting role to second outlet duct 18 to can prevent that the hookup location between second outlet duct 18, shunt tubes 19 and the three-way valve 17 from taking place to leak.
When in use, firstly, the core wire 1 is used as a heat-generating product, current can be passed through the core wire 1 with a certain resistance, the core wire 1 emits joule heat, the resistance and the passing current in unit length are equal in the whole length, the heat generation amount of each place is equal, the heat generation amount can be suitable for heat tracing and heat preservation of long-distance pipelines, one power supply point is used for supplying power, cooling water and auxiliary agents are placed into the cooling box 5 from the water outlet pipe 12 after the production is finished, then a heat-generating cable needing cooling passes through the inside of the conveying groove 31 and the top of the baffle plate 8 through the wire passing holes 21, then the heat-generating cable passes through the bottom of the second guide wheel 23, the other end of the heat-generating cable passes through the inside of the other group of wire passing holes 21 and is lapped on the top of the first guide wheel 11, then the heat-generating cable is fixedly connected with an external winding device, the air pump 14 is started to operate, the air pump 14 can convey air through the first air outlet pipe 16 and convey the air to the inside of the cooling box 5 through the three-way valve 17, the second air outlet pipe 18 and the shunt pipe 19, the air can be in a boiling state, so that the cooling liquid and the auxiliary agent are fully mixed, the cooling water and the auxiliary agent can be fully mixed through the arrangement, the reinforcing rod 34 and the second limiting pipe 35 can play a certain supporting role on the second air outlet pipe 18, the shunt pipe 19 and the connecting position among the three-way valve 17 can be prevented from leaking, the cooling water arranged inside the cooling box 5 can be prevented from returning to the inside of the air pump 14 through the arrangement of the check valve 20, the swelled air can be conveyed to the inside of the collecting cover plate 25 through the filter screen 24, then a large amount of gas can be conveyed through the first conveying pipe 27 with smaller diameter, so that the first conveying pipe 27 and the second conveying pipe 32 can convey gas, then the gas can be blown into the conveying groove 31, the arrangement can not only initially cool the produced heating cable by using cold cutting air, but also jack up the heating cable in the conveying groove 31, so that the contact area between the heating cable and the conveying block 30 after the production is completed is reduced, the uncooled outer sheath is prevented from being adhered to the inside of the conveying block 30, and then the outer winding device can cool the heating cable through cooling water for the second step, so that the cooling of the heating cable can be completed.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a serial heating cable apparatus for producing, includes cooling box (5), serial heating cable includes heart yearn (1), insulating layer (2) have been cup jointed to the surface of heart yearn (1), insulating layer (2) have been cup jointed outer sheath (3) far away from the surface of heart yearn (1), shielding layer (4) have been cup jointed to the one end that insulating layer (2) surface was kept away from to outer sheath (3);
the insulating layer (2) is made of fluoroplastic;
the cooling device comprises a cooling box (5), wherein a supporting frame (6) is fixedly arranged at the bottom of the cooling box (5), a blowing device (7) for mixing cooling liquid is arranged at the top of the supporting frame (6), the bottom of the blowing device (7) penetrates through the bottom of the cooling box (5) and extends into the cooling box (5), baffles (8) for conveying cables are fixedly arranged at two sides of the inner wall of the cooling box (5), a wind cooling device (9) for cooling and conveying the cables is fixedly arranged at the top of the baffles (8), a first mounting plate (10) is fixedly arranged at the top of the inner wall of the cooling box (5), and a first guide wheel (11) is rotatably arranged at the top of the first mounting plate (10);
the blowing device (7) consists of an air pump (14), a first limiting pipe (15), a first air outlet pipe (16), a three-way valve (17), a second air outlet pipe (18), a shunt pipe (19) and a check valve (20), wherein the air pump (14) is fixedly arranged at the top of the supporting frame (6), the first limiting pipe (15) is fixedly arranged at the bottom of the cooling box (5), the first air outlet pipe (16) is fixedly communicated with the output end of the air pump (14), one end, far away from the air pump (14), of the first air outlet pipe (16) penetrates through the inside of the first limiting pipe (15) and extends to the inside of the cooling box (5), the second air outlet pipe (18) is fixedly communicated with the outer surface of the first air outlet pipe (16) through the three-way valve (17), the shunt pipe (19) is fixedly communicated with the outer surface of the second air outlet pipe (18) through a plurality of groups of three-way valves (17), and the check valve (20) for preventing liquid from flowing backwards is arranged on the outer surface of the first air outlet pipe (16).
The method is characterized in that: the wind power cooling device (9) consists of a collecting cover plate (25), a third mounting plate (26), a first conveying pipe (27), a supporting rod (28), a fourth mounting plate (29), a conveying block (30), conveying grooves (31) and a second conveying pipe (32), wherein the third mounting plate (26) is fixedly connected to the bottoms of two sides of the collecting cover plate (25), the third mounting plate (26) and the collecting cover plate (25) are mounted on the top of the baffle plate (8) through fixed screw nails, one side of the collecting cover plate (25) is fixedly communicated with the first conveying pipe (27), the supporting rod (28) is L-shaped, two ends of one side of the supporting rod (28) are fixedly connected with the fourth mounting plate (29), the fourth mounting plate (29) and the supporting rod (28) are fixedly mounted on one side of the inner wall of the cooling box (5) through fixed screw nails, one side of the supporting rod (28) is fixedly connected with the conveying block (30) made of rubber materials, one side of the conveying block (30) is provided with an arc-shaped conveying groove (31) in a penetrating mode, one side of the inner wall of the cooling box (5) and the inner side of the supporting rod (28) are provided with the conveying block (32) penetrating through the bottom of the second conveying pipe (32), one end of the second conveying pipe (32) far away from the conveying groove (31) and one end of the first conveying pipe (27) far away from the collecting cover plate (25) are fixedly communicated through a fixed flange piece (33).
2. The tandem heating cable production apparatus of claim 1, wherein: the surface of baffle (8) and the position that corresponds conveyer trough (31) one side and first leading wheel (11) one side respectively all run through and have been offered line hole (21), the bottom of baffle (8) and the position that corresponds line hole (21) all fixedly connected with second mounting panel (22), second leading wheel (23) are installed in the bottom rotation of second mounting panel (22), the top of baffle (8) and the position that corresponds collection apron (25) run through and are provided with filter screen (24), the inside packing of cooling tank (5) has cooling water and auxiliary agent, and the height of packing cooling water is higher than the bottom of second leading wheel (23), the inside of conveyer trough (31) is passed to the one end of heating cable to extend to the bottom of baffle (8) through line hole (21), and the heating cable passes the bottom of two sets of second leading wheels (23) afterwards, and overlaps in the surface of first leading wheel (11) through another group of line hole (21).
3. A tandem heating cable production apparatus according to claim 2, wherein: the bottom of cooling tank (5) one side is provided with outlet pipe (12), one end of outlet pipe (12) runs through one side of cooling tank (5) and extends to the inside of cooling tank (5), the surface of cooling tank (5) is provided with outlet valve (13).
4. A tandem heating cable production apparatus according to claim 3, wherein: the outer surface of second outlet duct (18) has cup jointed second spacing pipe (35) of symmetric distribution, the surface fixedly connected with reinforcing rod (34) of second spacing pipe (35), the one end fixed mounting in the bottom of cooling tank (5) inner wall is kept away from to reinforcing rod (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981299.3A CN113709926B (en) | 2021-08-25 | 2021-08-25 | Series heating cable and production device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110981299.3A CN113709926B (en) | 2021-08-25 | 2021-08-25 | Series heating cable and production device thereof |
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| Publication Number | Publication Date |
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| CN113709926A CN113709926A (en) | 2021-11-26 |
| CN113709926B true CN113709926B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110981299.3A Active CN113709926B (en) | 2021-08-25 | 2021-08-25 | Series heating cable and production device thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107635298A (en) * | 2017-10-31 | 2018-01-26 | 山东华宁电伴热科技有限公司 | A kind of series electric heating band |
| CN210743678U (en) * | 2019-12-16 | 2020-06-12 | 苏州南洋电缆有限公司 | Photovoltaic cable apparatus for producing |
| CN112060541A (en) * | 2020-09-16 | 2020-12-11 | 合肥市丽红塑胶材料有限公司 | Cooling device after extrusion of modified plastic |
-
2021
- 2021-08-25 CN CN202110981299.3A patent/CN113709926B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107635298A (en) * | 2017-10-31 | 2018-01-26 | 山东华宁电伴热科技有限公司 | A kind of series electric heating band |
| CN210743678U (en) * | 2019-12-16 | 2020-06-12 | 苏州南洋电缆有限公司 | Photovoltaic cable apparatus for producing |
| CN112060541A (en) * | 2020-09-16 | 2020-12-11 | 合肥市丽红塑胶材料有限公司 | Cooling device after extrusion of modified plastic |
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| CN113709926A (en) | 2021-11-26 |
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