Solar irradiation crosslinking equipment for irradiation crosslinking cable production line

Abstract

The utility model discloses solar irradiation crosslinking equipment for an irradiation crosslinking cable production line, which comprises an irradiation crosslinking box arranged in a workshop room, an ultraviolet intensity detection probe, a plurality of ultraviolet lamps and reflectors arranged in the irradiation crosslinking box, and a sunlight collection device and an ultraviolet separation device arranged outdoors, the light guide device is used for conveying sunlight collected by the sunlight collecting device to the ultraviolet ray separating device, and an ultraviolet ray inlet for enabling ultraviolet rays separated from the ultraviolet ray separating device to enter the irradiation crosslinking box is formed in a box plate of the irradiation crosslinking box; and an irradiation power regulator capable of regulating the turn-on number or irradiation intensity of the ultraviolet lamps is also arranged outside the irradiation cross-linking box. The solar irradiation crosslinking equipment utilizes ultraviolet rays in natural sunlight to perform irradiation crosslinking on cable insulation, can effectively reduce the electric energy consumption of an artificial ultraviolet light source in the crosslinking process, has a remarkable energy-saving effect, can reduce the risk of environmental pollution, and conforms to the development concept of low carbon and environmental protection.

Description

Technical Field

[0001] The utility model relates to a cable cross-linking device, in particular to a radiation cross-linking device which utilizes ultraviolet rays to cross-link polyethylene insulation of cables. Background Art

[0002] Cross-linking can cross-link the original linear two-dimensional structure of polyethylene into a three-dimensional network structure. The cross-linked polyethylene has the advantages of low density, good electrical insulation, high heat resistance and good physical-mechanical properties. It is an excellent cable insulation material. Polyethylene can be cross-linked by a variety of methods, such as silane, high-energy radiation, peroxide, ultraviolet light, etc. When ultraviolet light is used for cross-linking, medium-pressure mercury lamps, microwave mercury lamps or LED ultraviolet lamps are usually used. These artificial ultraviolet light sources need to work continuously during the cable production process, which consumes a lot of electricity, so the energy-saving and emission reduction effect is not good. In addition, there is an environmental risk of mercury vapor leakage during the production and use of mercury lamps, which is not in line with the development concept of low-carbon and environmental protection. Natural sunlight contains ultraviolet rays in the 250-400nm band that can cross-link polyethylene. At noon on a sunny day, the irradiation power of ultraviolet rays in this band to the direct area of ​​the surface can reach 4W / m 2 However, the ultraviolet rays reaching the earth's surface in sunlight are greatly affected by seasonal and diurnal changes, as well as the thickness of clouds, the amount of water vapor, and the content of ozone. In the production line of UV cross-linked cables, the polyethylene insulation extruded outside the conductor needs to be continuously and stably exposed to ultraviolet rays. Therefore, this natural ultraviolet light with poor stability is difficult to apply to the production of UV cross-linked cables. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a solar irradiation cross-linking equipment for a irradiation cross-linking cable production line. The solar irradiation cross-linking equipment uses ultraviolet rays in natural sunlight to irradiate and cross-link the cable insulation, which can effectively reduce the power consumption of artificial ultraviolet light sources during the cross-linking process, has a significant energy-saving effect, and can reduce the risk of environmental pollution, which is in line with the development concept of low-carbon and environmental protection.

[0004] The technical solution adopted to solve the technical problem: a solar radiation cross-linking equipment for a radiation cross-linking cable production line, including a radiation cross-linking box arranged in a workshop, cable entry and exit holes are arranged at both ends of the radiation cross-linking box, an ultraviolet intensity detection probe and multiple ultraviolet lamps and reflectors are arranged in the radiation cross-linking box, the solar radiation cross-linking equipment also includes a sunlight collection device arranged outdoors, an ultraviolet separation device arranged outside the radiation cross-linking box, a light guide device for transporting sunlight collected by the sunlight collection device to the ultraviolet separation device, an ultraviolet inlet is opened on the box plate of the radiation cross-linking box for allowing ultraviolet rays separated from the ultraviolet separation device to enter the radiation cross-linking box, and an radiation power regulator that can adjust the number of ultraviolet lamps turned on or the irradiation intensity is also provided outside the radiation cross-linking box.

[0005] As a further improvement of the present invention: the sunlight collection device comprises a parabolic reflective umbrella and a lighting head arranged at the focus of the parabolic reflective umbrella.

[0006] As a further improvement of the present invention: the ultraviolet separation device is a prism.

[0007] As a further improvement of the utility model: the light guide device is a fiber optic bundle composed of multiple optical fiber filaments bundled together, one end of the fiber optic bundle is bundled into a cylindrical shape and connected to the light head, and the other end of the light bundle is bundled into a prism shape that can output strip light to the prism along the length direction of the prism.

[0008] As a further improvement of the utility model: a solar water heater is provided outside the irradiation box for heating water by using the non-ultraviolet light separated from the ultraviolet separation device.

[0009] As a further improvement of the utility model: a sun tracking base capable of adjusting the pitch angle and azimuth angle of the parabolic reflective umbrella is installed below the parabolic reflective umbrella.

[0010] As a further improvement of the present invention: the ultraviolet lamp is an LED ultraviolet lamp.

[0011] Beneficial effects: The solar radiation cross-linking equipment for the radiation cross-linking cable production line of the utility model adopts the solar radiation cross-linking equipment, which also includes a sunlight collection device arranged outdoors and an ultraviolet separation device arranged outside the radiation cross-linking box, a light-conducting device that transmits the sunlight collected by the sunlight collection device to the ultraviolet separation device, and an ultraviolet inlet is opened on the box plate of the radiation cross-linking box to allow the ultraviolet rays separated from the ultraviolet separation device to enter the radiation cross-linking box, and a radiation power regulator for adjusting the number of ultraviolet lamps turned on or the irradiation intensity is also provided outside the radiation cross-linking box. The technical feature is that the number of ultraviolet lamps turned on or the power can be adjusted according to the ultraviolet intensity in the radiation cross-linking box during operation. When there is sufficient sunlight, the ultraviolet rays in the sunlight can be fully utilized for cross-linking, and some ultraviolet lamps can be appropriately turned off to reduce the power consumption of artificial light sources. When the ultraviolet intensity in nature is insufficient at night or in rainy weather, artificial light sources can be used for irradiation. While ensuring the uninterrupted operation of the cable production line, the power consumption can be effectively reduced, the carbon emissions can be reduced, and the environmental risks brought by the use of mercury lamps can be reduced, with significant environmental protection effects. Due to the technical features that the sunlight collection device includes a parabolic reflective umbrella and a daylighting head arranged at the focus of the parabolic reflective umbrella, the collected light is stronger, and the ultraviolet radiation intensity entering the irradiation cross-linking box is higher. Due to the technical features that the ultraviolet separation device is a prism, the cost of the equipment is lower, and it does not affect the reuse of light in other bands. Due to the technical features that the light guide device is a fiber bundle composed of multiple optical fiber filaments bundled together, one end of the fiber bundle is bundled into a cylindrical shape and connected to the daylighting head, and the other end of the light bundle is bundled into a prism shape that can output strip light to the prism along the length direction of the prism, at the connection end of the fiber bundle and the daylighting head, the light can evenly enter each optical fiber, and at the output end of the fiber bundle, the light can evenly irradiate the prism along the length direction of the prism, forming a strip light source in the irradiation cross-linking box, which has a better irradiation effect than a point light source. Due to the technical feature that a solar water heater is installed outside the irradiation box to heat water using non-ultraviolet light separated from the ultraviolet separation device, the collected sunlight can be further utilized. The hot water output by the solar water heater can be used as domestic water, steam cross-linking water, and heat preservation and heating water for the irradiation cross-linking box, which has better energy-saving and emission-reduction effects. Due to the technical feature that a sun tracking base is installed under the parabolic reflective umbrella, which can automatically adjust the pitch angle and azimuth angle of the reflective umbrella according to the current sun position, the parabolic reflective umbrella can always face the sun, better collect sunlight, and further increase the intensity of ultraviolet rays entering the irradiation cross-linking box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The solar radiation cross-linking equipment for the radiation cross-linking cable production line of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0013] Figure 1 This is a working principle diagram of the solar radiation cross-linking equipment used in the radiation cross-linking cable production line of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional enlarged structure of the output end of the optical fiber bundle. DETAILED DESCRIPTION

[0015] like Figure 1 As shown, the utility model discloses a solar radiation cross-linking device for a radiation cross-linking cable production line, comprising a radiation cross-linking box 11 arranged in a workshop, cable inlet and outlet holes are arranged at both ends of the radiation cross-linking box, and a cable 8 passes through the radiation cross-linking box, and an ultraviolet intensity detection probe 9 and a plurality of ultraviolet lamps 10 and a reflector 7 are arranged in the radiation cross-linking box. The solar radiation cross-linking device also comprises a sunlight collection device arranged outdoors, an ultraviolet separation device arranged outside the radiation cross-linking box, a light guide device for transmitting the sunlight collected by the sunlight collection device to the ultraviolet separation device, an ultraviolet inlet 12 is opened on the box plate of the radiation cross-linking box, and an radiation power regulator is also arranged outside the radiation cross-linking box, which can adjust the number of ultraviolet lamps turned on or the irradiation intensity according to the ultraviolet intensity in the radiation cross-linking box. The irradiation power regulator can be manually controlled or automatically controlled by a computer. When automatically controlled, the minimum irradiation power value required for ultraviolet cross-linking is input into the computer, and the current irradiation power value output by the ultraviolet intensity detection probe is compared with the preset minimum irradiation power value. The number of ultraviolet lamps that need to be turned on or off is determined based on the difference.

[0016] The ultraviolet lamps in the irradiation cross-linking box are preferably LED ultraviolet lamps, so that the irradiation power can be adjusted by the number of ultraviolet lamps turned on, making the irradiation power adjustment and control more convenient.

[0017] Preferably, the sunlight collection device comprises a parabolic reflective umbrella 2 and a lighting head 4 arranged at the focus of the parabolic reflective umbrella. A sun tracking base 1 is installed below the parabolic reflective umbrella, which can manually or automatically adjust the pitch angle and azimuth angle of the reflective umbrella according to the current sun position.

[0018] The ultraviolet separation device is a prism 5, and a solar water heater 6 is provided outside the irradiation box for heating water using non-ultraviolet light separated from the ultraviolet separation device. In actual use, a filter that only allows ultraviolet light in the 250-400nm band to pass can also be selected as the ultraviolet separation device.

[0019] Preferably, the light guide device is an optical fiber bundle 3 composed of a plurality of optical fiber filaments 31 bundled together, and one end of the optical fiber bundle is bundled into a cylindrical shape and connected to the light collecting head. Figure 2As shown, the other end of the light beam is bundled into a prism shape that can output strip light to the prism along the length direction of the prism.

[0020] The improvement of the utility model over the prior art lies in the use of ultraviolet rays in sunlight, so the conventional electrical and optical parts of the radiation cross-linking box belonging to the prior art are not described in detail.

Claims

1. A solar radiation cross-linking device for a radiation cross-linking cable production line, comprising a radiation cross-linking box arranged in a workshop, cable inlet and outlet holes are arranged at both ends of the radiation cross-linking box, an ultraviolet intensity detection probe and a plurality of ultraviolet lamps and reflectors are arranged in the radiation cross-linking box, and the characteristics are: The solar radiation cross-linking equipment also includes a sunlight collection device arranged outdoors, an ultraviolet separation device arranged outside the radiation cross-linking box, a light-guiding device for transmitting the sunlight collected by the sunlight collection device to the ultraviolet separation device, an ultraviolet inlet is opened on the box plate of the radiation cross-linking box to allow the ultraviolet rays separated from the ultraviolet separation device to enter the radiation cross-linking box, and an radiation power regulator is also provided outside the radiation cross-linking box to adjust the number of ultraviolet lamps turned on or the irradiation intensity.

2. The solar radiation cross-linking equipment for a radiation cross-linked cable production line according to claim 1 is characterized in that: The sunlight collection device comprises a parabolic reflective umbrella and a lighting head arranged at the focus of the parabolic reflective umbrella.

3. The solar radiation cross-linking equipment for the radiation cross-linking cable production line according to claim 2 is characterized in that: The ultraviolet separation device is a prism.

4. The solar radiation cross-linking equipment for the radiation cross-linking cable production line according to claim 3 is characterized by: The light guide device is a fiber bundle composed of multiple optical fiber filaments bundled together. One end of the fiber bundle is bundled into a cylindrical shape and connected to the light-collecting head, and the other end of the light bundle is bundled into a prism shape that can output strip light to the prism along the length direction of the prism.

5. The solar radiation cross-linking equipment for a radiation cross-linked cable production line according to claim 4 is characterized in that: A solar water heater is also arranged outside the irradiation box for heating water by utilizing the non-ultraviolet light separated from the ultraviolet separation device.

6. The solar radiation cross-linking equipment for a radiation cross-linked cable production line according to claim 5 is characterized in that: A sun tracking base for adjusting the pitch angle and azimuth angle of the parabolic reflective umbrella is arranged below the parabolic reflective umbrella.

7. The solar radiation cross-linking equipment for a radiation cross-linking cable production line according to any one of claims 1 to 6, characterized in that: The ultraviolet lamp is an LED ultraviolet lamp.

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