Glass fiber winding PE pipeline and preparation device

Abstract

The utility model relates to the technical field of PE pipelines, and provides a glass fiber wound PE pipeline and a preparation device. The glass fiber winding PE pipeline comprises an anti-leakage coating, a PE pipe body and a glass fiber winding layer, the anti-leakage coating is arranged on the inner side of the PE pipe body, and the glass fiber winding layer is arranged on the outer side of the PE pipe body. According to the glass fiber winding PE pipeline provided by the utility model, the firmness, the fatigue resistance and the leakage resistance of the PE pipeline are improved, and the high pressure resistance and the hydrogen molecule leakage resistance of the PE pipeline during hydrogen transportation are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PE pipes, in particular to a glass fiber wound PE pipe and a preparation device thereof. Background Art

[0002] Hydrogen mixing technology has been developed to maturity. After mixing hydrogen with natural gas, carbon emissions during combustion can be reduced and energy efficiency can be improved. At present, the pipelines for hydrogen mixing transportation on the market mainly include natural gas pipelines, hydrogen pipelines, liquefied natural gas pipelines and liquid hydrogen pipelines. However, these existing pipelines have poor performance in high pressure resistance and hydrogen molecule leakage prevention, which in turn affects the transportation effect of hydrogen mixing. Utility Model Content

[0003] The first purpose of the utility model is to provide a glass fiber wrapped PE pipeline, which can solve the problems of poor high pressure resistance and poor hydrogen molecule leakage resistance of existing pipelines when transporting hydrogen.

[0004] The second purpose of the utility model is to provide a device for preparing a glass fiber wound PE pipe.

[0005] The utility model provides a glass fiber wound PE pipe, comprising an anti-leakage coating, a PE pipe body and a glass fiber winding layer, wherein the anti-leakage coating is arranged on the inner side of the PE pipe body, and the glass fiber winding layer is arranged on the outer side of the PE pipe body.

[0006] According to a glass fiber wound PE pipe provided by the utility model, the anti-leakage coating is a polyurea coating layer.

[0007] According to a glass fiber wound PE pipe provided by the utility model, the glass fiber winding layer includes a first glass fiber winding layer spirally wound along the length direction of the PE pipe body and a second glass fiber winding layer annularly arranged in sequence along the length direction of the PE pipe body, and the first glass fiber winding layer and the second glass fiber winding layer are alternately wound on the outer surface of the PE pipe body.

[0008] The utility model provides a glass fiber wound PE pipe preparation device, comprising an inflatable swivel joint and a winding machine, wherein a threaded rod of the winding machine is connected to a first end of a PE pipe body, a second end of the PE pipe body is connected to the inflatable swivel joint, and an inflatable channel for inflating the inner cavity of the PE pipe body is provided in the inflatable swivel joint.

[0009] According to a glass fiber wrapped PE pipe preparation device provided by the utility model, an air outlet is provided at the first end of the inflation rotary joint, and the air outlet is communicated with the inner cavity of the PE pipe body; an air inlet is provided on the side wall of the inflation rotary joint, and the two ends of the inflation channel are respectively communicated with the air outlet and the air inlet.

[0010] According to a glass fiber wrapped PE pipe preparation device provided by the utility model, a first internal threaded interface is provided at the first end of the PE pipe body, and the first internal threaded interface is threadedly connected to the threaded rod of the winding machine; a second internal threaded interface is provided at the second end of the PE pipe body, and an external threaded interface compatible with the second internal threaded interface is provided at the first end of the inflation rotary joint, and the external threaded interface is threadedly connected to the second internal threaded interface.

[0011] According to a glass fiber wrapped PE pipe preparation device provided by the utility model, a swivel joint outer shell is provided on the outside of the inflatable swivel joint, and a first sealing structure is provided between the swivel joint outer shell and the inflatable swivel joint; the second end of the inflatable swivel joint is connected and fixed to the rotating rod of the winding machine, part of the rotating rod is arranged on the outside of the swivel joint outer shell, and a second sealing structure is provided between the swivel joint outer shell and the inflatable swivel joint; an inflation interface is provided on the side wall of the swivel joint outer shell, the inflation interface is located between the first sealing structure and the second sealing structure, and the air inlet is located between the first sealing structure and the second sealing structure.

[0012] According to a glass fiber wound PE pipe preparation device provided by the utility model, the first sealing structure and the second sealing structure both include a braided spring and a soft material arranged in the braided spring.

[0013] The glass fiber wrapped PE pipe provided by the utility model can effectively improve the firmness and fatigue resistance of the PE pipe by arranging a glass fiber winding layer on the outer side of the PE pipe body, and can effectively improve the anti-leakage performance of the PE pipe by arranging an anti-leakage coating on the inner side of the PE pipe body 1; therefore, the glass fiber wrapped PE pipe of the embodiment of the utility model effectively improves the high pressure resistance and hydrogen molecule leakage resistance of the PE pipe during hydrogen transportation.

[0014] The utility model provides a glass fiber wound PE pipe preparation device, which provides an inflatable rotary joint and a winding machine, connects the threaded rod of the winding machine to the first end of the PE pipe body, connects the second end of the PE pipe body to the inflatable rotary joint, and provides an inflatable channel for inflating the inner cavity of the PE pipe body in the inflatable rotary joint, so that the PE pipe body can be inflated through the inflatable rotary joint during the winding process of the glass fiber and during the curing and molding, and the PE pipe body is kept in a high pressure state, thereby ensuring the stability of the preparation process, improving the success rate, and reducing the loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a structural schematic diagram of a glass fiber-wrapped PE pipe according to the utility model;

[0017] Figure 2 This is a cross-sectional view of a glass fiber-wrapped PE pipe according to the utility model;

[0018] Figure 3 This is a schematic diagram of the assembly of the glass fiber wrapped PE pipe preparation device of the utility model;

[0019] Figure 4 This is a schematic diagram of the cooperation between the rotating rod and the second sealing structure in the glass fiber wrapped PE pipe preparation device of the utility model;

[0020] Figure 5 It is a schematic diagram of the cooperation between the inflatable swivel joint and the swivel joint outer shell in the glass fiber wrapped PE pipe preparation device of the utility model.

[0021] Description of reference numerals:

[0022] 1. PE pipe body; 101. first internal thread interface; 102. second internal thread interface; 2. anti-leakage coating; 3. glass fiber winding layer; 5. inflatable rotary joint; 501. inflating channel; 502. external thread interface; 6. rotary joint outer shell; 601. inflating interface; 7. first sealing structure; 8. rotating rod; 9. second sealing structure; 10. braided spring; 11. soft material. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] like Figure 1 and Figure 2 As shown, the glass fiber wrapped PE pipe of the embodiment of the utility model includes a PE pipe body 1, an anti-leakage coating 2 and a glass fiber winding layer 3, wherein the anti-leakage coating 2 is arranged on the inner side of the PE pipe body 1, and the glass fiber winding layer 3 is arranged on the outer side of the PE pipe body 1.

[0027] That is, by arranging the glass fiber winding layer 3 on the outside of the PE pipe body 1, the firmness and fatigue resistance of the PE pipe can be effectively improved, and by arranging the anti-leakage coating 2 on the inside of the PE pipe body 1, the anti-leakage performance of the PE pipe can be effectively improved. Therefore, the glass fiber wound PE pipe of the embodiment of the utility model effectively improves the high pressure resistance and hydrogen molecule leakage resistance of the PE pipe during hydrogen transportation.

[0028] Specifically, the anti-leakage coating 2 may be a polyurea coating layer, and of course, other coating layers having the function of preventing hydrogen molecule leakage may also be used.

[0029] Specifically, the glass fiber winding layer 3 includes a first glass fiber winding layer spirally wound along the length direction of the PE pipe body 1 and a second glass fiber winding layer sequentially arranged in a ring shape along the length direction of the PE pipe body, and the first glass fiber winding layer and the second glass fiber winding layer can be alternately wound on the outer surface of the PE pipe body 1. This arrangement of the glass fiber winding layer 3 can effectively improve the firmness and fatigue resistance of the PE pipe.

[0030] Among them, a plurality of first glass fiber winding layers and a plurality of second glass fiber winding layers can be arranged on the outer side of the PE pipe body 1 according to actual use requirements.

[0031] Specifically, a first internal thread interface 101 and a second internal thread interface 102 are respectively provided at both ends of the PE pipe body 1 for connection and cooperation with the winding machine during the preparation process. After the glass fiber wound PE pipe is prepared and solidified, the first internal thread interface 101 and the second internal thread interface 102 at both ends can be cut off.

[0032] like Figures 3 to 5 As shown, an embodiment of the utility model further provides a glass fiber wrapped PE pipe preparation device, including an inflation rotary joint 5 and a winding machine (not shown in the figure), the threaded rod of the winding machine is connected to the first end of the PE pipe body 1, the second end of the PE pipe body 1 is connected to the inflation rotary joint 5, and the inflation rotary joint 5 is provided with an inflation channel 501 for inflating the inner cavity of the PE pipe body 1, so as to facilitate inflation into the PE pipe body 1 through the inflation rotary joint 5.

[0033] Therefore, the glass fiber wrapped PE pipe preparation device of the embodiment of the utility model is provided with a winding machine for driving the PE pipe body 1 to rotate and perform the glass fiber winding process, and an inflation rotary joint 5 is provided for inflating the PE pipe body 1 during the winding process and during the curing process, so as to keep the PE pipe body 1 in a high pressure state, thereby ensuring the stability of the preparation process, improving the success rate and reducing the loss.

[0034] Specifically, an air outlet is provided at the first end of the inflation swivel joint 5, and the air outlet is connected to the inner cavity of the PE pipe body 1. An air inlet is provided on the side wall of the inflation swivel joint 5, and the two ends of the inflation channel 501 are respectively connected to the air outlet and the air inlet. That is, when inflating, high-pressure air enters the inflation channel 501 through the air inlet, and then enters the inner cavity of the PE pipe body 1 through the air outlet of the inflation channel 501, so as to maintain the high-pressure state inside the PE pipe body 1.

[0035] Since a first internal threaded interface 101 is provided at the first end of the PE pipe body 1 and a second internal threaded interface 102 is provided at the second end of the PE pipe body 1, the first internal threaded interface 101 is threadedly connected to the threaded rod of the winding machine, and then an external threaded interface 502 matched with the second internal threaded interface 102 is provided at the first end of the inflation rotary joint 5, and the external threaded interface 502 is threadedly connected to the second internal threaded interface 102, thereby realizing a reliable connection between the PE pipe body 1, the inflation rotary joint 5 and the winding machine.

[0036] Specifically, a swivel joint outer shell 6 is provided on the outside of the inflatable swivel joint 5, and a first sealing structure 7 is provided between the swivel joint outer shell 6 and the inflatable swivel joint 5. The second end of the inflatable swivel joint 5 is connected and fixed to the rotating rod 8 of the wrapping machine, and part of the rotating rod 8 is provided on the outside of the swivel joint outer shell 6, and a second sealing structure 9 is provided between the swivel joint outer shell 6 and the inflatable swivel joint 5. An inflatable interface 601 is provided on the side wall of the swivel joint outer shell 6, and the inflatable interface 601 is located between the first sealing structure 7 and the second sealing structure 9, and the air inlet on the inflatable swivel joint 5 is located between the first sealing structure 7 and the second sealing structure 9. That is, the inflatable interface 601 is used to connect with an external inflatable device, so as to transport high-pressure gas into the PE pipe body 1 through the inflatable channel 501 on the inflatable swivel joint 5, so as to maintain the high-pressure state inside the PE pipe body 1. During the winding process, the inflatable swivel joint 5 will rotate under the driving action of the winding machine, and the outer shell 6 of the swivel joint will remain stationary because it is connected to the external inflatable device. By setting the first sealing structure 7 and the second sealing structure 9, a relatively sealed cavity can be formed between the outer shell 6 of the swivel joint and the inflatable swivel joint 5. During the rotation and inflation process, the external inflatable device inflates the cavity through the inflation interface 601, and the high-pressure air in the cavity enters the inflation channel 501 through the air inlet on the inflatable swivel joint 5, and then is transported to the PE pipe body 1 through the inflation channel 501.

[0037] The first sealing structure 7 and the second sealing structure 9 both include a braided spring 10 and a soft material 11 filled in the braided spring 10. Thus, under the elastic tension of the braided spring 10, an effective installation can be formed between the swivel joint outer shell 6 and the inflatable swivel joint 5, and between the swivel joint outer shell 6 and the rotating rod 8, and an effective seal can be formed by filling the soft material 11 in the braided spring 10 and between the gaps of the braided spring 10.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A glass fiber wrapped PE pipe, characterized in that: It comprises an anti-leakage coating, a PE pipe body and a glass fiber winding layer, wherein the anti-leakage coating is arranged on the inner side of the PE pipe body, and the glass fiber winding layer is arranged on the outer side of the PE pipe body.

2. The glass fiber wrapped PE pipe according to claim 1, characterized in that: The anti-leakage coating is a polyurea coating layer.

3. The glass fiber wrapped PE pipe according to claim 1, characterized in that: The glass fiber winding layer includes a first glass fiber winding layer spirally wound along the length direction of the PE pipe body and a second glass fiber winding layer annularly arranged in sequence along the length direction of the PE pipe body. The first glass fiber winding layer and the second glass fiber winding layer are alternately wound on the outer surface of the PE pipe body.

4. A glass fiber wrapped PE pipe preparation device, characterized in that: It includes an inflation swivel joint and a winding machine, wherein the threaded rod of the winding machine is connected to the first end of the PE pipe body, the second end of the PE pipe body is connected to the inflation swivel joint, and the inflation swivel joint is provided with an inflation channel for inflating the inner cavity of the PE pipe body.

5. The glass fiber wrapped PE pipe preparation device according to claim 4, characterized in that: An air outlet is provided at the first end of the inflation rotary joint, and the air outlet is communicated with the inner cavity of the PE pipe body; an air inlet is provided on the side wall of the inflation rotary joint, and the two ends of the inflation channel are respectively communicated with the air outlet and the air inlet.

6. The glass fiber wrapped PE pipe preparation device according to claim 5, characterized in that: A first internal threaded interface is provided at the first end of the PE pipe body, and the first internal threaded interface is threadedly connected to the threaded rod of the winding machine; a second internal threaded interface is provided at the second end of the PE pipe body, and an external threaded interface matched with the second internal threaded interface is provided at the first end of the inflation rotary joint, and the external threaded interface is threadedly connected to the second internal threaded interface.

7. The glass fiber wrapped PE pipe preparation device according to claim 6, characterized in that: A swivel joint outer shell is arranged outside the inflatable swivel joint, and a first sealing structure is arranged between the swivel joint outer shell and the inflatable swivel joint.

8. The glass fiber wrapped PE pipe preparation device according to claim 7, characterized in that: The second end of the inflatable swivel joint is connected and fixed to the rotating rod of the wrapping machine, part of the rotating rod is arranged outside the outer shell of the swivel joint, and a second sealing structure is arranged between the outer shell of the swivel joint and the inflatable swivel joint.

9. The glass fiber wrapped PE pipe preparation device according to claim 8, characterized in that: An air charging interface is provided on the side wall of the outer shell of the rotary joint, the air charging interface is located between the first sealing structure and the second sealing structure, and the air inlet is located between the first sealing structure and the second sealing structure.

10. The glass fiber wrapped PE pipe preparation device according to claim 8, characterized in that: The first sealing structure and the second sealing structure both include a braided spring and a soft material disposed in the braided spring.

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