Vertical processing equipment for high-temperature-resistant cable

Abstract

The utility model discloses vertical processing equipment for a high-temperature-resistant cable, and belongs to the field of cable processing. The cable conveying device comprises a cable conveying pipeline which is vertically installed, and a cable vertically penetrates through the cable conveying pipeline; the upper end of the cable conveying pipeline is connected with an oxygen conveying device through an oxygen pipeline, the upper end of the cable conveying pipeline is connected with a silane precursor conveying device through a silane precursor pipeline, and the gas blowing direction of the oxygen pipeline and the silane precursor pipeline to the cable conveying pipeline is vertically downward; the lower end of the cable conveying pipeline is connected with a water vapor conveying device through water vapor pipelines, the gas blowing direction of the water vapor pipelines to the cable conveying pipeline is vertically upward, the number of the water vapor pipelines is two, and the positions of gas outlets of the water vapor pipelines correspond to the positions of gas outlets of the oxygen pipeline and the silane precursor pipeline. According to the utility model, the processing of the insulating layer of the cable can be realized under the vertical installation condition, and the tensile strength, flame retardant property and high temperature resistance of the cable are improved.

Description

Technical Field

[0001] The utility model belongs to the field of cable processing, and more specifically, relates to vertical processing equipment for high-temperature resistant cables. Background Art

[0002] Cables are wire products used to transmit electrical energy, information, and achieve electromagnetic energy conversion. They are widely used in industrial production and daily life. The structure of a cable is generally that multiple cores are directly wrapped in insulating material, including an inner core and an outer sheath layer. The inner core includes a conductor and an insulating layer. The outer surface of the outer sheath layer is provided with a number of annular grooves at intervals. Two long strips of wrapping sheets are provided in the annular grooves. One end of the wrapping sheet is integrated with the outer sheath layer, and the other end is provided with chain teeth. Although the wires to be bundled are placed between the wrapping sheet and the outer sheath layer, and then the sliding parts on the wrapping sheet are pulled up, the bundling function of the wires is realized. However, during installation and use, the cables are often pulled and collided, and the cables have poor compressive and tensile strength, which can easily cause damage in the service environment. At the same time, the high temperature resistance of wires and cables is poor. When a fire occurs, the cable core inside the wires and cables is easily damaged by heat, causing the wires and cables to fail to work normally, posing a major safety hazard.

[0003] Existing cable insulation processing equipment is typically placed horizontally on the ground to facilitate material addition. However, due to the length of the cables, horizontal cable processing equipment often occupies a large area of ​​the factory floor, resulting in equipment being placed too close together within the factory, affecting production.

[0004] For example, the patent document with Chinese patent application number: CN201010567431.8 and publication date: August 17, 2011, discloses a high-temperature, low-pressure steam continuous vulcanization device for rubber wires and cables, which inputs low-pressure steam of 0.4 MPa or less into the vulcanization pipeline, and at the same time, short-circuit heats each vulcanization pipe in the vulcanization section of the vulcanization pipeline; the high-temperature, low-pressure steam continuous vulcanization device for rubber wires and cables includes a vulcanization section, which is composed of a plurality of vulcanization pipes connected together, and the vulcanization pipe is composed of a high-temperature resistant stainless steel seamless pipe 7, an asbestos insulation layer 8 wrapped around the outer periphery of the steel pipe 7, and an insulation fixing layer 9 fixed to the outer periphery of the asbestos insulation layer 8, a temperature reflecting layer 10 is provided between the steel pipe 7 and the asbestos insulation layer 8, a cavity is provided between the steel pipe 7 and the temperature reflecting layer 10, an electric heating pipe 11 is provided in the cavity, and the material of the insulation fixing layer 9 is aluminum alloy.

[0005] For example, the patent document with Chinese patent application number: CN202010890310.0 and publication date: November 6, 2020, discloses a steam vulcanization process for power cables. The cable conductor is released and enters the steam vulcanization device through a first wire pulling device. After the cable conductor completes steam vulcanization cross-linking, it is guided by a second wire pulling device and wound on the take-up roller.

[0006] The above two solutions are both horizontally placed cable processing equipment, which has the problem of occupying a large area as mentioned above, and it cannot be adjusted to be placed vertically, otherwise it will be difficult to add materials normally. Summary of the Invention

[0007] 1. Problems to be solved

[0008] In response to the problem that existing cable processing equipment is not placed horizontally and occupies a large area, which affects the spatial layout of the factory, the utility model provides a vertical processing equipment for high-temperature resistant cables, which can realize the processing of the insulation layer of the cable under vertical installation conditions, and improve the tensile strength, flame retardant performance and high-temperature resistance of the cable.

[0009] 2. Technical solution

[0010] In order to solve the above problems, the present invention adopts the following technical solutions.

[0011] A vertical processing device for high-temperature resistant cables, comprising a vertically installed cable conveying conduit, through which the cable passes vertically; the upper end of the cable conveying conduit is connected to an oxygen conveying device via an oxygen conduit, and is connected to a silane precursor conveying device via a silane precursor conduit, and the gas blowing direction of the oxygen conduit and the silane precursor conduit into the cable conveying conduit is vertically downward; the lower end of the cable conveying conduit is connected to a water vapor conveying device via a water vapor conduit, and the gas blowing direction of the water vapor conduit into the cable conveying conduit is vertically upward, and there are two water vapor conduits, the positions of their air outlets correspond to the positions of the air outlets of the oxygen conduit and the silane precursor conduit.

[0012] As a further improvement of the technical solution, a heating device is installed in the cable conveying conduit.

[0013] As a further improvement of the technical solution, a preheating device is installed on the steam pipeline.

[0014] As a further improvement of the technical solution, a temperature detection device is installed on the cable transmission pipeline.

[0015] As a further improvement of the technical solution, an oxygen content detection device is installed on the cable transmission pipeline.

[0016] As a further improvement of the technical scheme, the cable conveying pipeline is provided with a humidity detection device.

[0017] As a further improvement of the technical scheme, the cable conveying pipeline is provided with an air pressure detection device.

[0018] As a further improvement of the technical scheme, the inner side wall of the cable conveying pipeline is coated with a corrosion-resistant layer.

[0019] As a further improvement of the technical scheme, the bottom of the cable conveying pipeline is provided with a fixing support.

[0020] As a further improvement of the technical scheme, the cable conveying pipeline is provided with a safety valve.

[0021] 3, beneficial effects

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] (1) the vertical processing equipment for high-temperature-resistant cable of the utility model, according to the characteristics of different gas densities, the oxygen and silane precursor with relatively large density compared with air are conveyed into the cable conveying pipeline from the upper part of the equipment, the water vapor with relatively small density compared with air is conveyed into the cable conveying pipeline from the lower part of the equipment, the three are mixed in the pipeline and react with the rubber on the cable under the high temperature of water vapor, and the rubber-silicon dioxide composite cable insulation layer is formed, which can effectively improve the tensile strength, flame retardant property and high-temperature-resistant property of the cable, in addition, the blowing directions of the upper and lower gas pipelines are oppositely arranged, so that the gas can be collided, thereby the gas mixing effect can be improved without external assistance, the processing quality of the cable is ensured, under this feature, the vertical processing of the equipment can also ensure the processing quality of the cable, and the occupied space of the equipment is saved.

[0024] (2) the vertical processing equipment for high-temperature-resistant cable of the utility model, the heating device and temperature detection device are arranged in the cable conveying pipeline, the temperature in the cable conveying pipeline can be accurately controlled to be in the set temperature range, and the processing quality of the cable is improved.

[0025] (3) the vertical processing equipment for high-temperature-resistant cable of the utility model, the oxygen content, humidity and air pressure detection devices are arranged on the cable conveying pipeline, the real-time processing environment of the cable can be helped to be grasped, so that the processing quality is ensured by timely adjustment according to the production condition.

[0026] (4) the vertical processing equipment for high-temperature-resistant cable of the utility model, the corrosion-resistant layer is coated on the inner side wall of the cable conveying pipeline, the cable conveying pipeline can be prevented from being corroded, and the service life of the cable conveying pipeline is improved.

[0027] (5) The utility model provides a vertical processing device for high-temperature resistant cables. A safety valve is installed on the cable transmission pipeline, which can ensure the stability of the air pressure in the cable transmission pipeline and avoid the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of the utility model;

[0029] In the figure: 1. Cable conveying pipeline; 2. Oxygen conveying device; 3. Silane precursor conveying device; 4. Water vapor conveying device; 5. Temperature detection device; 6. Oxygen content detection device; 7. Humidity detection device; 8. Fixed bracket. DETAILED DESCRIPTION

[0030] The following describes in detail exemplary embodiments of the present invention. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to implement the present invention, it should be understood that other embodiments may be implemented and various changes may be made to the present invention without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the claimed invention, but is merely for illustration and does not limit the description of the features and characteristics of the present invention, in order to propose the best way to perform the present invention and to enable those skilled in the art to implement the present invention. Therefore, the scope of the present invention is limited only by the appended claims.

[0031] Example 1

[0032] A vertical processing equipment for high-temperature resistant cables is used for processing the external insulation layer of cables in a vertical state to improve cable performance. Its specific structure and technical effects are described in detail below.

[0033] like Figure 1 As shown, the device includes a vertically installed cable conveying conduit 1, with a fixing bracket 8 installed at the bottom of the cable conveying conduit 1. The cable passes vertically through the cable conveying conduit 1. The upper end of the cable conveying conduit 1 is connected to an oxygen conveying device 2 via an oxygen conduit, and is connected to a silane precursor conveying device 3 via a silane precursor conduit. The oxygen conduit and the silane precursor conduit blow gas vertically downward into the cable conveying conduit 1. The lower end of the cable conveying conduit 1 is connected to a water vapor conveying device 4 via a water vapor conduit. The water vapor conduit blows gas vertically upward into the cable conveying conduit 1. There are two water vapor conduits, and their outlets are located corresponding to the outlets of the oxygen conduit and the silane precursor conduit.

[0034] The equipment of this embodiment transports oxygen and silane precursors with a relatively high density relative to air from the top of the equipment to the cable conveying pipe 1, and water vapor with a relatively low density relative to air from the bottom of the equipment to the cable conveying pipe 1, based on the characteristics of different gas densities. The three are mixed in the cable conveying pipe 1 and react with the rubber on the cable under the high temperature brought by the water vapor to form a rubber-silicon dioxide composite cable insulation layer, which can effectively improve the tensile strength, flame retardancy and high temperature resistance of the cable. In addition, the blowing directions of the upper and lower gas pipes are set relative to each other, so that the gases can collide, thereby improving the gas mixing effect without external assistance, and ensuring the processing quality of the cable. With this feature, the processing quality of the cable can be guaranteed even if the equipment is processed vertically, saving the space occupied by the equipment.

[0035] In addition, a heating device is installed in the cable conveying pipe 1, a preheating device is installed on the steam pipe, and a temperature detection device 5 is installed on the cable conveying pipe 1, so that the temperature in the cable conveying pipe 1 can be accurately controlled within the set temperature range, thereby improving the processing quality of the cable.

[0036] At the same time, the cable conveying pipeline 1 is also equipped with an oxygen content detection device 6, a humidity detection device 7 and an air pressure detection device, which can help grasp the real-time processing environment of the cable, so as to make timely adjustments according to production conditions and ensure processing quality.

[0037] In terms of equipment protection, the inner wall of the cable conveying pipe 1 is coated with a corrosion-resistant layer to prevent the cable conveying pipe from corrosion and increase the service life of the cable conveying pipe. The cable conveying pipe 1 is equipped with a safety valve to ensure the stable air pressure in the cable conveying pipe and avoid the occurrence of safety accidents.

[0038] It is worth mentioning that during the processing of the cable, it can be rotated by external equipment such as a turntable with clamps driven by a motor, so that the cable can be fully in contact with the mixed gas during processing, thereby improving the processing quality.

[0039] Specifically, the actual processing of this embodiment can be divided into the following steps.

[0040] Step 1: oxygen and silane gas are introduced from the upper end of the cable conveying pipe 1, during which the cable is kept rotating.

[0041] Step 2: Water vapor is introduced from the lower end of the cable transmission pipe 1. Under the action of gas injection and gravity, oxygen, silane gas and water vapor will be mixed.

[0042] Step 3: Heat the interior of the cable conveying conduit 1 by a heating device.

[0043] Step 4: During the heating process, the mixture of the three gases will cause the unsoftened rubber on the cable surface to soften and combine with the nano-silica particles formed by the decomposition of the silane gas to form a tensile, flame-retardant, and high-temperature resistant insulation layer.

[0044] Step 5: During the heating process, the reaction time of every 10m of cable in the equipment is specified to be 15 minutes.

[0045] In summary, the vertical processing equipment for high-temperature resistant cables of this embodiment can process the insulation layer of the cable under vertical installation conditions, thereby improving the tensile strength, flame retardancy and high-temperature resistance of the cable.

Claims

1. A vertical processing equipment for high temperature resistant cables, characterized by: The invention comprises a vertically installed cable conveying conduit (1), wherein a cable passes through the cable conveying conduit (1) vertically; the upper end of the cable conveying conduit (1) is connected to an oxygen conveying device (2) via an oxygen conduit, and is connected to a silane precursor conveying device (3) via a silane precursor conduit, wherein the gas blowing direction of the oxygen conduit and the silane precursor conduit toward the cable conveying conduit (1) is vertically downward; the lower end of the cable conveying conduit (1) is connected to a water vapor conveying device (4) via a water vapor conduit, wherein the gas blowing direction of the water vapor conduit toward the cable conveying conduit (1) is vertically upward, and the water vapor conduit has two gas outlets, and the positions of the gas outlets of the water vapor conduit and the silane precursor conduit correspond to the positions of the gas outlets of the oxygen conduit and the silane precursor conduit.

2. The vertical processing equipment for high temperature resistant cables according to claim 1, characterized in that: The cable conveying pipe (1) is equipped with a heating device.

3. The vertical processing equipment for high temperature resistant cables according to claim 2, characterized in that: The water vapor pipeline is equipped with a preheating device.

4. The vertical processing equipment for high temperature resistant cables according to claim 3, characterized in that: The cable conveying conduit (1) is equipped with a temperature detection device (5).

5. The vertical processing equipment for high temperature resistant cables according to claim 1, characterized in that: The cable conveying pipe (1) is equipped with an oxygen content detection device (6).

6. The vertical processing equipment for high temperature resistant cables according to claim 1, characterized in that: The cable conveying conduit (1) is provided with a humidity detection device (7).

7. The vertical processing equipment for high temperature resistant cables according to claim 1, characterized in that: The cable conveying pipe (1) is equipped with an air pressure detection device.

8. A vertical processing device for high temperature resistant cables according to any one of claims 1 to 7, characterized in that: The inner wall of the cable conveying pipe (1) is coated with a corrosion-resistant layer.

9. A vertical processing device for high temperature resistant cables according to any one of claims 1 to 7, characterized in that: A fixing bracket (8) is installed at the bottom of the cable conveying pipe (1).

10. A vertical processing device for high temperature resistant cables according to any one of claims 1 to 7, characterized in that: The cable conveying pipeline (1) is equipped with a safety valve.

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