Anti-freezing pipeline

Abstract

The utility model discloses an anti-freezing pipeline which is characterized in that the anti-freezing pipeline comprises a shell layer, an anti-seepage layer and an anti-cracking layer, the anti-seepage layer is arranged between the shell layer and the anti-cracking layer, the anti-cracking layer comprises a polyvinyl chloride layer and a rubber layer, the rubber layer is attached to the polyvinyl chloride layer, the thickness of the polyvinyl chloride layer is 0.8-1.2 cm, and the thickness of the rubber layer is 1 cm; according to the anti-freezing and cold-resistant pipeline, the shell layer, the anti-seepage layer and the anti-cracking layer are arranged, the anti-cracking layer is of a double-layer structure of the polyvinyl chloride layer and the rubber layer, meanwhile, the thickness of the polyvinyl chloride layer and the thickness of the rubber layer are both 1 cm, the anti-freezing and cold-resistant performance is high, the anti-freezing effect is good, and the pipeline can be prevented from being frozen and cracked.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe network systems, and in particular relates to an antifreeze pipe. Background Art

[0002] The temperature in northern China is cold in winter, and underground pipelines in northern China usually need to be protected by thermal insulation cotton and then buried deep underground to prevent freezing and cracking. However, in some special weather conditions, the temperature is extremely low, and the pipelines may shrink excessively under low temperatures, causing the side walls of the pipelines to be squeezed and cracked. As they are buried deep underground, it is difficult to carry out maintenance work. Existing pipelines usually use ordinary thermal insulation cotton or rubber materials to prevent freezing, which has poor antifreeze effect, poor cold resistance, and is easily cracked and damaged by freezing. Utility Model Content

[0003] The utility model aims to provide an antifreeze pipeline to solve the problems of poor cold resistance and easy freezing cracking of existing pipelines.

[0004] The utility model is realized by the following technical solutions:

[0005] An antifreeze pipe comprises an outer shell layer, an anti-seepage layer and an anti-cracking layer, wherein the anti-seepage layer is arranged between the outer shell layer and the anti-cracking layer, the anti-cracking layer comprises a polyvinyl chloride layer and a rubber layer, the rubber layer is arranged in contact with the polyvinyl chloride layer, the thickness of the polyvinyl chloride layer is 0.8-1.2CM, and the thickness of the rubber layer is 1CM.

[0006] Furthermore, a plurality of V-shaped grooves are continuously arranged in the polyvinyl chloride layer, and the V-shaped grooves are arranged toward the rubber layer.

[0007] Furthermore, a protrusion matched with the V-shaped groove is arranged on one side of the rubber layer, and the other side of the rubber layer is arranged in contact with the anti-seepage layer.

[0008] Furthermore, the anti-seepage layer includes a first antifreeze layer, a second antifreeze layer and a PVC layer, the PVC layer is arranged between the first antifreeze layer and the second antifreeze layer, and the first antifreeze layer is arranged in contact with the anti-cracking layer.

[0009] Furthermore, the outer shell layer includes a stainless steel fiber layer and a third antifreeze layer, the third antifreeze layer is arranged on the outside of the stainless steel fiber layer, and the stainless steel fiber layer is arranged in contact with the anti-seepage layer.

[0010] Furthermore, an anti-corrosion coating is provided on the inner side of the polyvinyl chloride layer.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] 1) In the utility model, an outer shell layer, an anti-seepage layer and an anti-cracking layer are provided. The anti-cracking layer adopts a double-layer structure of a polyvinyl chloride layer and a rubber layer. At the same time, the thickness of the polyvinyl chloride layer and the rubber layer are both 1CM, which have high antifreeze and cold resistance, good antifreeze effect, and can prevent the pipeline from being frozen and cracked.

[0013] 2) In the utility model, a plurality of V-shaped grooves are continuously arranged on the polyvinyl chloride layer, and a rubber layer matching the polyvinyl chloride layer is arranged on the outside of the polyvinyl chloride layer, so that the polyvinyl chloride layer can generate shrinkage or expansion elasticity on its surface when it expands or contracts under low or high temperature conditions, thereby avoiding the tension of contraction or expansion from squeezing and rupturing the polyvinyl chloride layer, which can further improve the cold and frost resistance of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a schematic diagram of the cross-sectional structure of the antifreeze pipe of the utility model.

[0016] Among them: 1-polyvinyl chloride layer, 11-V-shaped groove, 2-rubber layer, 3-first antifreeze layer, 4-PVC layer, 5-second antifreeze layer, 6-stainless steel fiber layer, 7-third antifreeze layer. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0018] Embodiment 1:

[0019] The main structure of this embodiment is an antifreeze pipeline, such as Figure 1 As shown, it includes an outer shell layer, an anti-seepage layer and an anti-cracking layer. The anti-seepage layer is arranged between the outer shell layer and the anti-cracking layer. The anti-cracking layer includes a polyvinyl chloride layer 1 and a rubber layer 2. The rubber layer 2 is arranged in contact with the polyvinyl chloride layer 1. The thickness of the polyvinyl chloride layer 1 is 0.8-1.2CM, and the thickness of the rubber layer 2 is 1CM.

[0020] The anti-seepage layer of the antifreeze pipe is arranged between the outer shell layer and the anti-cracking layer. The anti-cracking layer includes a polyvinyl chloride layer 1 made of polyvinyl chloride material. A rubber layer 2 is arranged on the outer surface of the polyvinyl chloride layer 1. In order to avoid being frozen and cracked, the polyvinyl chloride layer 1 is set to a thickness of 1CM, and the thickness of the rubber layer 2 is also set to 1CM. At the same time, the anti-seepage layer and the outer shell layer are both multi-layer structures, which have a multi-layer antifreeze effect.

[0021] Embodiment 2:

[0022] On the basis of the above embodiment, the present embodiment further defines the polyvinyl chloride layer 1, wherein a plurality of V-shaped grooves 11 are continuously arranged in the polyvinyl chloride layer 1, and the V-shaped grooves 11 are arranged toward the rubber layer 2. Preferably, in order to prevent the polyvinyl chloride layer 1 from being frozen and cracked, a plurality of V-shaped grooves 11 are continuously arranged on the polyvinyl chloride layer 1, and the V-shaped grooves 11 are arranged on the overall side of the polyvinyl chloride layer 1. When the temperature is too low and causes the pipe to shrink, a certain deformation elasticity can be formed on the polyvinyl chloride layer 1 with a plurality of V-shaped grooves 11, so as to prevent the polyvinyl chloride layer 1 from being squeezed and cracked when the pipe shrinks; at the same time, when the temperature rises, the polyvinyl chloride layer 1 will expand, and the polyvinyl chloride layer 1 with a plurality of V-shaped grooves 11 can also have a certain expansion deformation elasticity, so as to prevent the crack-proof layer from being broken when the pipe expands and contracts due to heat. The other parts of the present embodiment are the same as the above embodiment, and will not be repeated here.

[0023] Embodiment 3:

[0024] On the basis of the above embodiment, this embodiment further defines the rubber layer 2, one side of the rubber layer 2 is provided with a protrusion matched with the V-shaped groove 11, and the other side of the rubber layer 2 is provided in contact with the anti-seepage layer. Preferably, the rubber layer 2 is provided in contact with the polyvinyl chloride layer 1, and the surface of the rubber layer 2 on one side of the polyvinyl chloride layer 1 is provided with a plurality of protrusions of V-shaped structure, which match the cavity formed between the V-shaped grooves 11 on the polyvinyl chloride layer 1, and at the same time, can play the role of elastic support for the polyvinyl chloride layer 1; the other side surface of the rubber layer 2 is a smooth structure, and is provided in contact with the anti-seepage layer. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0025] Embodiment 4:

[0026] On the basis of the above embodiment, the present embodiment further defines an anti-seepage layer, the anti-seepage layer comprises a first anti-freeze layer 3, a second anti-freeze layer 5 and a PVC layer 4, the PVC layer 4 is arranged between the first anti-freeze layer 3 and the second anti-freeze layer 5, and the first anti-freeze layer 3 is arranged in contact with the anti-cracking layer. Preferably, the anti-seepage layer comprises a PVC layer 4, the first anti-freeze layer 3 is arranged on the inner side of the PVC layer 4, the second anti-freeze layer 5 is arranged on the outer side of the PVC layer 4, and the first anti-freeze layer 3 and the second anti-freeze layer 5 are both made of polyurethane foam material. The other parts of the present embodiment are the same as the above embodiment, and will not be repeated here.

[0027] Embodiment 5:

[0028] On the basis of the above embodiment, this embodiment further defines the outer shell layer, the outer shell layer includes a stainless steel fiber layer 6 and a third antifreeze layer 7, the third antifreeze layer 7 is arranged on the outside of the stainless steel fiber layer 6, and the stainless steel fiber layer 6 is arranged in affixed with the anti-seepage layer. The outer shell layer includes a third antifreeze layer 7 and a stainless steel limiting layer, the third antifreeze layer 7 is made of rubber material, the third antifreeze layer 7 is arranged in affixed with the stainless steel limiting layer, and the inner side of the stainless steel limiting layer is connected to the second antifreeze layer 5. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0029] Embodiment 6:

[0030] On the basis of the above embodiment, this embodiment further adds an anti-corrosion coating, and the anti-corrosion coating is provided on the inner side of the polyvinyl chloride layer 1. In order to prevent the pipeline from being corroded, preferably, an anti-corrosion coating is provided on the inner side of the polyvinyl chloride layer 1. The anti-corrosion coating is usually made by spraying a vinyl resin material. The thickness of the anti-corrosion coating is 8 μm, and it has a high strength corrosion resistance effect. The other parts of this embodiment are the same as the above embodiment, and will not be repeated here.

[0031] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when used. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model.

[0032] In addition, if the terms "horizontal" or "vertical" appear in the description of the present invention, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A freeze-proof pipe, characterized in that: It includes an outer shell layer, an anti-seepage layer and an anti-cracking layer. The anti-seepage layer is arranged between the outer shell layer and the anti-cracking layer. The anti-cracking layer includes a polyvinyl chloride layer and a rubber layer. The rubber layer is laminated to the polyvinyl chloride layer. The thickness of the polyvinyl chloride layer is 0.8-1.2CM, and the thickness of the rubber layer is 1CM.

2. The antifreeze pipe according to claim 1, characterized in that: A plurality of V-shaped grooves are continuously arranged in the polyvinyl chloride layer, and the V-shaped grooves are arranged toward the rubber layer.

3. The antifreeze pipe according to claim 2, characterized in that: One side of the rubber layer is provided with a protrusion matched with the V-shaped groove, and the other side of the rubber layer is arranged in contact with the anti-seepage layer.

4. The antifreeze pipe according to claim 1, characterized in that: The anti-seepage layer comprises a first antifreeze layer, a second antifreeze layer and a PVC layer, the PVC layer is arranged between the first antifreeze layer and the second antifreeze layer, and the first antifreeze layer is arranged in contact with the anti-cracking layer.

5. The antifreeze pipe according to claim 1, characterized in that: The outer shell layer includes a stainless steel fiber layer and a third antifreeze layer. The third antifreeze layer is arranged on the outside of the stainless steel fiber layer. The stainless steel fiber layer is arranged in contact with the anti-seepage layer.

6. The antifreeze pipe according to claim 1, characterized in that: An anti-corrosion coating is arranged on the inner side of the polyvinyl chloride layer.

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