CN210415782U

CN210415782U - Photovoltaic power plant prevents grass non-woven fabrics

Info

Publication number: CN210415782U
Application number: CN201920689095.0U
Authority: CN
Inventors: 朱东良
Original assignee: Jiaxing Huali Nonwovens Products Co ltd
Current assignee: Jiaxing Huali Nonwovens Products Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-04-28
Anticipated expiration: 2029-05-14

Abstract

The utility model discloses a photovoltaic power station grass-prevention non-woven fabric, which comprises a first fiber layer, a base cloth layer and a second fiber layer which are compounded by needling; the base cloth layer is positioned between the first fiber layer and the second fiber layer; the outer side of the first fiber layer is provided with a film feeling surface formed by singeing and hot pressing. The utility model relates to a photovoltaic power plant prevents grass non-woven fabrics uses the dacron that has good wrinkle resistance, elasticity and dimensional stability to form the gas permeability that the face reduced and prevented grass non-woven fabrics at the surface through singeing, hot pressing. The light shading performance of the product is improved by using the dark-colored fibers, the tensile property of the product is improved by adding the high-strength base cloth into the product, and the plants are prevented from being broken due to insufficient strength of the product in the growth process. So that the weed-proof non-woven fabric can effectively prevent the growth of the weeds in the photovoltaic power station.

Description

Photovoltaic power plant prevents grass non-woven fabrics

Technical Field

The utility model belongs to the technical field of the non-woven fabrics technique and specifically relates to a photovoltaic power plant prevents grass non-woven fabrics.

Background

With the development of modern industry, global energy crisis and air pollution problems are highlighted, traditional fuel energy is being reduced day by day, harm to the environment is highlighted, and about 20 hundred million people in the world cannot obtain normal energy supply. In this time, the attention of the world is directed to renewable energy sources, and the renewable energy sources are expected to change the energy structure of human beings and maintain long-term sustainable development, and among the renewable energy sources, solar energy is the focus of attention by the unique advantages of the renewable energy sources. Abundant solar radiation energy is an important energy source, and is inexhaustible, pollution-free, cheap and freely available for human beings. Generally, the photovoltaic panel is generally installed on a roof, but the using area of the roof is limited, so that a photovoltaic power station can be built on the ground for using solar energy more greatly, but the growth speed of weeds on the ground is high, sunlight is easily shielded, and the absorption of the light energy is reduced. The weed problem is generally solved by using artificial weeding or spraying agents, but the personnel cost is high, and the agents affect the ecological environment. In order to solve the problem, the production process and the technology are improved by referring to the existing products, and a special non-woven fabric is developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a photovoltaic power plant prevents grass non-woven fabrics uses the dacron that has good wrinkle resistance, elasticity and dimensional stability to form the gas permeability that the face reduced and prevented grass non-woven fabrics at the surface through singeing, hot pressing. The light shading performance of the product is improved by using the dark-colored fibers, the tensile property of the product is improved by adding the high-strength base cloth into the product, and the plants are prevented from being broken due to insufficient strength of the product in the growth process.

In order to solve the technical problem, the purpose of the utility model is to realize like this:

the utility model relates to a photovoltaic power station grass-prevention non-woven fabric, which comprises a first fiber layer, a base cloth layer and a second fiber layer which are compounded by needling; the base cloth layer is positioned between the first fiber layer and the second fiber layer; the outer side of the first fiber layer is provided with a film feeling surface formed by singeing and hot pressing.

As a further explanation of the above scheme, the first fiber layer and the second fiber layer are made of polyester fibers, and the base fabric layer is made of polyester filament woven fabric.

As a further explanation of the above solution, the first fiber layer is dark green.

As a further illustration of the above scheme, the areal density of the first fiber layer and the second fiber layer is 200-250 grams per square meter, and the areal density of the base fabric used for the base fabric layer is 60-70 grams per square meter.

As a further explanation of the scheme, the thickness of the grass-prevention non-woven fabric is 2.8-3.2 mm.

As a further explanation of the above scheme, the air permeability of the grass-prevention non-woven fabric is not more than 20cc/cm²/s。

The utility model has the advantages that: the utility model relates to a photovoltaic power plant prevents grass non-woven fabrics uses the dacron that has good wrinkle resistance, elasticity and dimensional stability to form the gas permeability that the face reduced and prevented grass non-woven fabrics at the surface through singeing, hot pressing. The light shading performance of the product is improved by using the dark-colored fibers, the tensile property of the product is improved by adding the high-strength base cloth into the product, and the plants are prevented from being broken due to insufficient strength of the product in the growth process. So that the weed-proof non-woven fabric can effectively prevent the growth of the weeds in the photovoltaic power station.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

The designations in the figures illustrate the following: 1-a first fibrous layer; 2-a base fabric layer; 3-a second fibrous layer; 11-Membrane feel side.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Examples

The present invention will be described in detail with reference to fig. 1. The utility model relates to a photovoltaic power plant prevents grass non-woven fabrics, include by compound first fibrous layer 1 of acupuncture, base cloth layer 2 and second fibrous layer 3. The base layer 2 is located between the first fiber layer 1 and the second fiber 3. The first fiber layer 1 has a film-like surface 11 formed by singeing and hot-pressing on the outer side. The first fiber layer 1 and the second fiber layer 3 are made of polyester fibers, and the base fabric layer 2 is made of polyester filament woven fabric. The production process of the grass-proof non-woven fabric for the photovoltaic power station comprises the following steps: the process comprises the steps of fiber mixing, carding, oriented lamination, fiber web stretching, needle punching to form cloth, needle punching compounding, singeing and hot press molding.

Researches show that the polyester fiber has excellent wrinkle resistance, elasticity and dimensional stability, good electrical insulation performance, sunlight resistance, friction resistance, mildew resistance, moth resistance, better chemical reagent resistance and weak acid and weak base resistance. The fine denier fiber is used to improve the density of the product to reduce the ventilation performance, the dark fiber is used to improve the light shading performance of the product, and the high-strength base cloth is added into the product to improve the tensile property of the product and prevent the plants from breaking due to insufficient strength of the product during growth.

The polyester fiber used in the first fiber layer 1 and the second fiber layer 3 is fine denier polyester, and the fineness is 0.9-1.4 dtex. The surface density of the first fiber layer 1 and the second fiber layer 3 is 200-250 g/m, and the surface density of the base cloth used in the base cloth layer 2 is 60-70 g/m. In the present embodiment, the areal density of the first fiber layer 1 and the second fiber layer 3 is specifically 216 grams per square meter. The areal density of the base fabric was 65 grams per square meter.

In the present embodiment, the first fiber layer 1 is blackish green, and the second fiber layer 3 may also be blackish green. The product uses 100 percent of polyester fiber, and green polyester fiber with a certain proportion is mixed in the raw materials for beautifying the environment, so that the finished product is dark green and corresponds to some grass and trees around.

During production, the first fiber layer 1 and the second fiber layer 3 are subjected to fiber opening, fiber mixing, carding by a carding machine to form a net, laminating by a lapping machine to form a fiber net, and reinforcing the fiber net with the original thickness of 60mm according to the density of 420 needles per square centimeter to form the first fiber layer 1 and the second fiber layer 3 with the thickness of 2.0-2.5mm by using a plurality of needling devices. And then the base cloth layer is arranged between the first fiber layer 1 and the second fiber layer 3, the first fiber layer 1, the second fiber layer 3 and the base cloth layer 2 are fully interwoven through high-frequency needling of 310 needles per square centimeter, and the longitudinal and transverse strength of the product is improved. And then, carrying out high-temperature singeing processing on the non-woven fabric subjected to composite processing at the speed of 16m per minute. The singeing surface is melted at the speed of 2m/min by the high temperature of 150-190 ℃ on the surface of the hot roller and then is calendered, so that the surface of the product is coated with a film feeling to form a film feeling surface, and the film feeling surface effectively prevents the penetration of air, thereby reducing the air permeability. The thickness of the singeing and hot-pressing grass-proof non-woven fabric is 2.8-3.2 mm.

Will the utility model relates to a prevent grass non-woven fabrics and comparative example and carry out the contrast test, the comparative example is the present conventional grass cloth of preventing, with the utility model discloses the same material has, gram weight and thickness. The specific test structure is as follows:

as can be seen from the above table, the examples have a greater improvement in tensile strength than the comparative examples.

The grass-prevention non-woven fabric related to the embodiment is subjected to a light-resistant test by adopting a national standard GB/T8427-2008 method 3, a detection mechanism is Shimadzu detection technology Limited company, and the light resistance of a product is tested to be greater than 4 grades of standard requirements and reach 6 grades. The longer the light resistance time is, the longer the service life of the product is, which can reach 20 years.

The examples and comparative examples were tested for air permeability and the results are shown in the following table:

the grass-preventing non-woven fabrics that this embodiment relates, the product surface forms the node through high temperature singeing, preheats through high temperature again and makes the node melt back reheat roll after the cooling make the surface form membrane feel face 11, has reduced the gas permeability of product, and the hole between the non-woven fabrics fibre reduces simultaneously, has improved the shading performance of product, and the shading nature is strong. The reduction of air permeability effectively isolates the photosynthesis of the ground and the outside, and plants are not easy to grow under the condition of no photosynthesis. As can be seen from the above table, the examples have lower air permeability, effectively isolate the photosynthesis of the ground weeds from the outside, and the plants are not easy to grow without photosynthesis.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.

Claims

1. A photovoltaic power station grass-prevention non-woven fabric is characterized by comprising a first fiber layer, a base fabric layer and a second fiber layer which are compounded by needling; the base cloth layer is positioned between the first fiber layer and the second fiber layer; the outer side of the first fiber layer is provided with a membrane-sensing surface formed by singeing and hot-pressing; the first fiber layer and the second fiber layer are made of polyester fibers, and the base cloth layer is made of polyester filament woven fabric.

2. The grass protection nonwoven fabric for photovoltaic power plants according to claim 1, characterized in that said first fibrous layer is dark green.

3. The grass-prevention non-woven fabric for the photovoltaic power station as claimed in claim 1, wherein the surface density of the first fiber layer and the second fiber layer is 200-250 g/m, and the surface density of the base fabric used for the base fabric layer is 60-70 g/m.

4. The photovoltaic power plant grass-prevention non-woven fabric of claim 1, wherein the thickness of the grass-prevention non-woven fabric is 2.8-3.2 mm.

5. The grass-prevention nonwoven fabric for photovoltaic power plants according to claim 1, characterized in that the air permeability of the grass-prevention nonwoven fabric is not more than 20cc/cm²/s。