High-strength low-temperature-resistant PPR pipe

Abstract

The utility model belongs to the field of pipe production, particularly relates to a high-strength low-temperature-resistant PPR pipe, and aims to solve the problems that when an existing PPR pipe is used, the low-temperature-resistant performance is poor, the low-temperature-resistant performance of the PPR pipe is difficult to improve, the use effect of the PPR pipe is reduced, and the experience effect of the PPR pipe is reduced. In order to solve the problems that the existing PPR pipe has a single function and is low in pressure resistance and structural strength, the service life of the PPR pipe is short, and the use requirements of people are difficult to meet, the following scheme is provided that the PPR pipe comprises a PPR pipe body, an inner heat preservation layer, an outer heat preservation layer and a pressure resistance layer; the inner heat preservation layer is arranged on the inner side of the pipe body. According to the low-temperature-resistant PPR pipe, the first low-temperature-resistant layer, the first supporting layer, the antibacterial layer, the second low-temperature-resistant layer, the fiber layer, the second supporting layer, the reinforcing layer and the outer wrapping layer are sequentially arranged, so that the low-temperature resistance of the PPR pipe is greatly enhanced, the rigidity and the impact strength of the PPR pipe are improved, and the service life of the PPR pipe is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe production, in particular to a high-strength and low-temperature-resistant PPR pipe. Background Art

[0002] PPR is the abbreviation of random copolymer polypropylene (Polypropylene-Random). Commonly known as type III polypropylene, PPR pipe is an updated product of UPVC water supply pipe, aluminum-plastic pipe, PE pipe, PE-X pipe, and PE-RT pipe. Because it uses random copolymerization technology, the strength and high temperature resistance of polypropylene are well guaranteed, thus becoming the main force of water pipe materials;

[0003] In the prior art, PPR pipes are simply packed during transportation and then directly stacked for transportation. In this mode of transportation, if the PPR pipes cannot fill the entire carriage during actual transportation, relative collisions will occur, affecting the quality of the PPR pipes. In response to the above problem, the application number is: 202021077433.4. A high-strength, low-temperature-resistant PPR pipe is disclosed, which includes a connecting plate and a PPR pipe body. A clamping ring is provided at the bottom of the connecting plate, and the PPR pipe body is clamped inside the clamping ring. A left clamping block is provided on the left side of the connecting plate, and a left clamping strip is connected to the left side of the left clamping block. A left caliper is connected to the bottom of the left clamping strip, and a right clamping block is provided on the right side of the connecting plate. A right clamping groove is provided on the surface of the right clamping block, and a right clamping platform is provided inside the right clamping groove. Compared with the prior art, the utility model has the following beneficial effects: by providing a connecting plate, the PPR pipe body is clamped in the clamping ring, so as to achieve the purpose of stabilizing the PPR pipe body during transportation;

[0004] However, after reading the above patent documents, the following problems are found: during use, the low-temperature resistance is poor, it is difficult to improve the low-temperature resistance of the PPR pipe, which reduces the use effect of the PPR pipe and reduces the experience effect of the PPR pipe; and the PPR pipe has a single function, low pressure resistance and structural strength, resulting in a short service life of the PPR pipe, which is difficult to meet people's usage needs. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a high-strength and low-temperature-resistant PPR pipe.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-strength low-temperature resistant PPR pipe, comprising a PPR pipe body, an inner insulation layer, an outer insulation layer and a pressure-resistant layer;

[0008] The inner insulation layer is arranged inside the PPR pipe body, the outer insulation layer is arranged outside the PPR pipe body, and the pressure-resistant layer is sleeved between the outer insulation layers;

[0009] The inner insulation layer includes a low-temperature resistant layer 1, a support layer 1 and an antibacterial layer. The inner side of the PPR pipe body is provided with a low-temperature resistant layer 1, the inner side of the low-temperature resistant layer 1 is provided with a support layer 1, and the inner side of the support layer 1 is provided with an antibacterial layer;

[0010] The outer insulation layer includes a second low-temperature resistant layer and an outer covering layer; the pressure-resistant layer includes a fiber layer, a second support layer and a reinforcement layer. By sequentially arranging the first low-temperature resistant layer, the first support layer, the antibacterial layer, the second low-temperature resistant layer, the fiber layer, the second support layer, the reinforcement layer and the outer covering layer, not only the low-temperature resistance of the PPR pipe is greatly enhanced, but also the stiffness and impact resistance of the PPR pipe are improved, thereby extending its service life.

[0011] Specifically, a second low-temperature resistant layer is provided on the outer side of the PPR pipe body to further insulate the PPR pipe body, a fiber layer is provided on the second low-temperature resistant layer, a second support layer is provided on the fiber layer, a reinforcement layer is provided on the second support layer, and an outer covering layer is provided on the reinforcement layer to improve the pressure resistance of the PPR pipe body.

[0012] Specifically, a flame retardant layer is provided on the outer covering layer to achieve a flame retardant effect, an anti-oxidation layer is provided on the flame retardant layer to prevent surface oxidation of the PPR pipe body, and an identification layer is provided on the anti-oxidation layer to achieve an information identification effect.

[0013] Specifically, in order to achieve the flame retardant effect, the flame retardant layer is made of a flame retardant polymer material.

[0014] Specifically, in order to improve the compression resistance and structural strength, the outer layer is made of inorganic zinc silicate, and the reinforcement layer is made of synthetic fiber.

[0015] Specifically, the specific material of the support layer 2 and the support layer 1 is made of random copolymer polypropylene, the specific material of the low-temperature resistant layer 2 is rock wool, which serves the purpose of thermal insulation, and the specific material of the fiber layer is basalt fiber composite material, which further enhances the compression resistance and structural strength of the PPR pipe.

[0016] Specifically, the specific material of the low-temperature resistant layer 1 is a composite silicate product, which has the performance of low thermal conductivity, thereby further improving the low-temperature resistance of the PPR pipe.

[0017] Specifically, in order to improve the antibacterial property of the PPR pipe, the specific material of the antibacterial layer is nano-silver material.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] (1) The high-strength, low-temperature-resistant PPR pipe of the utility model achieves the purpose of having good thermal insulation performance through the coordinated design of the inner thermal insulation layer and the outer thermal insulation layer, thereby improving the low-temperature resistance of the PPR pipe body.

[0020] (2) The high-strength and low-temperature-resistant PPR pipe of the utility model improves the rigidity and impact resistance of the PPR pipe and increases its service life through the effect of the pressure-resistant layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following will briefly introduce the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and the structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in the utility model, so they have no technical substantive significance, and any structural modification, change in proportional relationship or adjustment of size.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a high-strength, low-temperature-resistant PPR pipe proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the main structural anatomy of a high-strength, low-temperature-resistant PPR pipe proposed in the utility model.

[0024] In the figure: 1. PPR pipe body; 2. Low temperature resistant layer one; 3. Support layer one; 4. Antibacterial layer; 5. Low temperature resistant layer two; 6. Fiber layer; 7. Support layer two; 8. Reinforcement layer; 9. Outer layer; 10. Flame retardant layer; 11. Anti-oxidation layer; 12. Identification layer. DETAILED DESCRIPTION

[0025] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Reference Figure 1-2 , a high-strength low-temperature resistant PPR pipe, comprising a PPR pipe body 1, an inner insulation layer, an outer insulation layer and a pressure-resistant layer;

[0027] The inner insulation layer is arranged on the inner side of the PPR pipe body 1, the outer insulation layer is arranged on the outer side of the PPR pipe body 1, and the pressure-resistant layer is sleeved between the outer insulation layers;

[0028] The inner insulation layer includes a low-temperature resistant layer 2, a support layer 3 and an antibacterial layer 4. The inner side of the PPR pipe body 1 is provided with a low-temperature resistant layer 2, the inner side of the low-temperature resistant layer 2 is provided with a support layer 3, and the inner side of the support layer 3 is provided with an antibacterial layer 4;

[0029] The outer insulation layer includes a low-temperature resistant layer 5 and an outer covering layer 9; the pressure-resistant layer includes a fiber layer 6, a support layer 7 and a reinforcement layer 8. By sequentially arranging the low-temperature resistant layer 2, the support layer 3, the antibacterial layer 4, the low-temperature resistant layer 5, the fiber layer 6, the support layer 7, the reinforcement layer 8 and the outer covering layer 9, not only the low-temperature resistance of the PPR pipe is greatly enhanced, but also the stiffness and impact resistance of the PPR pipe are improved, thereby extending its service life.

[0030] In this embodiment, a low-temperature resistant layer 5 is provided on the outer side of the PPR pipe body 1 to further insulate the PPR pipe body 1, a fiber layer 6 is provided on the low-temperature resistant layer 5, a support layer 7 is provided on the fiber layer 6, a reinforcement layer 8 is provided on the support layer 7, and an outer covering layer 9 is provided on the reinforcement layer 8 to improve the compression resistance of the PPR pipe body 1.

[0031] In this embodiment, a flame retardant layer 10 is provided on the outer covering layer 9 to achieve a flame retardant effect. An anti-oxidation layer 11 is provided on the flame retardant layer 10 to prevent surface oxidation of the PPR pipe body 1. An identification layer 12 is provided on the anti-oxidation layer 11 to achieve an information identification effect.

[0032] In this embodiment, in order to achieve a flame retardant effect, the flame retardant layer 10 is made of a flame retardant polymer material.

[0033] In this embodiment, in order to improve the compression resistance and structural strength, the outer layer 9 is made of inorganic zinc silicate, and the reinforcement layer 8 is made of synthetic fiber.

[0034] In this embodiment, the specific material of the support layer 2 7 and the support layer 1 3 is made of random copolymer polypropylene, the specific material of the low-temperature resistant layer 2 5 is rock wool, which serves the purpose of thermal insulation, and the specific material of the fiber layer 6 is basalt fiber composite material, which further enhances the compressive resistance and structural strength of the PPR pipe.

[0035] In this embodiment, the specific material of the low-temperature resistant layer 2 is a composite silicate product, which has the performance of low thermal conductivity, thereby further improving the low-temperature resistance of the PPR pipe.

[0036] In this embodiment, in order to improve the antibacterial property of the PPR pipe, the specific material of the antibacterial layer 4 is nano-silver material.

[0037] The technical progress achieved by the utility model compared with the prior art is: by sequentially arranging a low-temperature resistant layer 2, a supporting layer 3, an antibacterial layer 4, a low-temperature resistant layer 5, a fiber layer 6, a supporting layer 7, a reinforcing layer 8 and an outer covering layer 9, not only the low-temperature resistance of the PPR pipe is greatly enhanced, but also the rigidity and impact resistance of the PPR pipe are improved, thereby extending its service life.

Claims

1. A high-strength, low-temperature-resistant PPR pipe, characterized in that: It comprises a PPR pipe body (1), an inner thermal insulation layer, an outer thermal insulation layer and a pressure-resistant layer; The inner thermal insulation layer is arranged on the inner side of the PPR pipe body (1), the outer thermal insulation layer is arranged on the outer side of the PPR pipe body (1), and the pressure-resistant layer is sleeved between the outer thermal insulation layers; The inner thermal insulation layer comprises a low-temperature resistant layer (2), a support layer (3) and an antibacterial layer (4); the inner side of the PPR pipe body (1) is provided with the low-temperature resistant layer (2); the inner side of the low-temperature resistant layer (2) is provided with the support layer (3); and the inner side of the support layer (3) is provided with the antibacterial layer (4); The outer thermal insulation layer comprises a second low-temperature resistant layer (5) and an outer cladding layer (9); the pressure-resistant layer comprises a fiber layer (6), a second supporting layer (7) and a reinforcement layer (8).

2. A high-strength, low-temperature-resistant PPR pipe according to claim 1, characterized in that: A second low-temperature resistant layer (5) is provided on the outer side of the PPR pipe body (1); a fiber layer (6) is provided on the second low-temperature resistant layer (5); a second supporting layer (7) is provided on the fiber layer (6); a reinforcing layer (8) is provided on the second supporting layer (7); and an outer covering layer (9) is provided on the reinforcing layer (8).

3. A high-strength, low-temperature-resistant PPR pipe according to claim 2, characterized in that: A flame retardant layer (10) is provided on the outer covering layer (9), an anti-oxidation layer (11) is provided on the flame retardant layer (10), and a marking layer (12) is provided on the anti-oxidation layer (11).

4. The high-strength low-temperature-resistant PPR pipe according to claim 3, characterized in that: The flame retardant layer (10) is specifically made of a flame resistant polymer material.

5. The high-strength low-temperature-resistant PPR pipe according to claim 2, characterized in that: The specific material of the outer covering layer (9) is made of inorganic zinc silicate, and the specific material of the reinforcement layer (8) is made of synthetic fiber material.

6. The high-strength low-temperature-resistant PPR pipe according to claim 2, characterized in that: The specific material of the supporting layer 2 (7) and the supporting layer 1 (3) is made of random copolymer polypropylene, the specific material of the low temperature resistant layer 2 (5) is rock wool, and the specific material of the fiber layer (6) is a basalt fiber composite material.

7. The high-strength low-temperature-resistant PPR pipe according to claim 1, characterized in that: The specific material of the low temperature resistant layer 1 (2) is a composite silicate product.

8. The high-strength low-temperature-resistant PPR pipe according to claim 1, characterized in that: The specific material of the antibacterial layer (4) is nano-silver material.

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