Continuous winding glass fiber reinforced plastic liner tube
By setting a wear-resistant ring, a stainless steel layer, a silicon nitride layer and an expanded vermiculite powder layer on the glass fiber tube reinforced plastic liner, the problem of wear and end damage when the liner is pushed into the pipe body is solved, and the effect of reducing friction resistance, increasing end surface hardness and improving flame retardancy is achieved.
Patent Information
- Application Number
- CN202421508384.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-06-28
AI Technical Summary
The fiberglass tube reinforced plastic liner is prone to friction wear when pushed into the tube body, and the ends are prone to breakage and leaks.
A continuous wound glass fiber reinforced plastic liner is designed, including a wear-resistant ring and a stainless steel layer on both sides of the liner tube body, and a silicon nitride layer is added to the end surface and an expansive vermiculite powder layer is coated on the outer surface.
The contact area and friction resistance between the liner and the tube body are reduced by the wear-resistant ring and the stainless steel layer to avoid wear of the liner; the end surface hardness is increased by the silicon nitride layer to prevent collision damage; the flame retardancy is improved by expanding the vermiculite powder layer.
Smart Images
Figure CN222616356U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a glass fiber tube liner, in particular to a continuously wound glass fiber reinforced plastic liner. Background Art
[0002] The fiberglass reinforced plastic liner is a fiberglass pipe body used for pipeline repair. When in use, the liner is pushed into the pipe body to be repaired. However, in the actual working process, when the liner is pushed into the pipe body to be repaired, the liner contacts the pipe body and violent friction occurs during the pushing process, causing the liner to be worn. In addition, when the end contacts the end of another pipe during the pushing process, the end is often damaged due to collision. Once the end is damaged, it is easy to cause leakage at the connection between the two pipes. For this reason, a continuously wound fiberglass reinforced plastic liner is proposed. Utility Model Content
[0003] The utility model aims to solve the above problems and proposes a continuously wound glass fiber reinforced plastic liner.
[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution for continuously winding a glass fiber reinforced plastic liner, including a liner body; its characteristic is that it also includes wear-resistant rings arranged on both sides of the liner body and protruding from the outer surface of the liner body, and a stainless steel layer installed on the outside of the wear-resistant rings, the cross-section of the stainless steel layer is U-shaped, the wear-resistant ring is provided with a boss adapted to the stainless steel layer, and the stainless steel layer is installed on the boss in a wrapped manner.
[0005] Further preferably, it also includes a silicon nitride layer arranged on the end faces of both sides of the liner body to increase the hardness of the end faces.
[0006] Further preferably, it also includes a layer of expanded vermiculite powder coated on the outer surface of the liner body to have a flame retardant effect.
[0007] The beneficial effects of the utility model are as follows: by arranging wear-resistant rings protruding from the outer surface of the liner body on both sides of the liner body, when the liner body is pushed into the pipe body to be repaired, only the wear-resistant rings are in contact with the pipe body, thereby reducing the contact area between the liner body and the pipe body to be repaired, reducing the friction resistance, and reducing the force required for pushing in. At the same time, by wrapping and installing a stainless steel layer on the outer side of the wear-resistant ring, the stainless steel layer is in contact with the pipe body to be repaired, thereby avoiding severe friction between the liner body and the pipe body to be repaired, thereby preventing the liner body from being worn out due to the wear;
[0008] Silicon nitride layers are provided on both side end faces of the liner tube body to increase the surface hardness of the end faces of the liner tube body, thereby preventing the liner tube body from colliding with another pipe end face and thus being easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] AttachedFigure 1 It is a structural schematic diagram of the utility model;
[0010] Attached Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0011] Attached Figure 3 It is a partial enlarged structural schematic diagram of point A of the utility model.
[0012] Legend: 1. Liner body; 2. Wear-resistant ring; 21. Boss; 3. Stainless steel layer; 4. Silicon nitride layer; 5. Expanded vermiculite powder layer. DETAILED DESCRIPTION
[0013] Next, we will further explain the continuously wound glass fiber reinforced plastic liner described in the utility model in conjunction with the accompanying drawings.
[0014] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the utility model are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.
[0015] In the present invention, unless otherwise clearly defined and limited, the terms "connection", "fixation", etc. should be understood in a broad sense; for example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0016] See also Figure 1-3 As shown in, a continuously wound glass fiber reinforced plastic liner comprises a liner body 1; it is characterized in that it also comprises wear-resistant rings 2 arranged on both sides of the liner body and protruding from the outer surface of the liner body, and a stainless steel layer 3 installed on the outer side of the wear-resistant ring 2, wherein the cross section of the stainless steel layer 3 is U-shaped, and a boss 21 adapted to the stainless steel layer 3 is provided on the wear-resistant ring 2, and the stainless steel layer 3 is installed on the boss 21 in a wrapped manner;
[0017] By arranging wear-resistant rings 2 protruding from the outer surface of the liner body 1 on both sides of the liner body 1, when the liner body 1 is pushed into the pipe body to be repaired, only the wear-resistant rings 2 are in contact with the pipe body, thereby reducing the contact area between the liner body 1 and the pipe body to be repaired, reducing the friction resistance, and reducing the force required for pushing in. At the same time, by wrapping and installing a stainless steel layer 3 on the outer side of the wear-resistant ring 2, the stainless steel layer 3 is in contact with the pipe body to be repaired, thereby avoiding severe friction between the liner body 1 and the pipe body to be repaired, thereby preventing the liner body 1 from being worn due to the wear;
[0018] The installation position of the stainless steel layer 3 is limited by the setting of the boss 21, which facilitates the installation of the stainless steel layer 3 and prevents the stainless steel layer 3 from protruding from the end surface of the liner body 1. The stainless steel layer 3 can be fixedly installed on the wear-resistant layer by screws or bonding.
[0019] By setting the cross section of the stainless steel layer 3 to be U-shaped, it can be installed on the wear-resistant ring 2 in a wrapped manner, and can protect the outer surface and the corners on both sides of the wear-resistant ring 2.
[0020] In one embodiment, it also includes a silicon nitride layer 4 disposed on both side end surfaces of the liner body 1 to increase the hardness of the end surfaces;
[0021] Silicon nitride layers 4 are provided on both side end faces of the liner body 1 to increase the surface hardness of the end faces of the liner body 1 and prevent the liner body 1 from colliding with another pipe end face and thus being easily damaged.
[0022] In one embodiment, it also includes an expanded vermiculite powder layer 5 coated on the outer surface of the liner body 1 to have a flame retardant effect; by coating the expanded vermiculite powder layer 5 on the outer surface of the liner body 1, the flame retardancy of the liner body 1 is increased.
[0023] The protection scope of the present utility model is not limited to the above embodiments and their variations. Conventional modifications and replacements made by those skilled in the art based on the contents of this embodiment all fall within the protection scope of the present utility model.
Claims
1. A continuously wound glass fiber reinforced plastic liner, comprising a liner body (1); wherein: It also includes wear-resistant rings (2) arranged on both sides of the liner body and protruding from the outer surface of the liner body, and a stainless steel layer (3) installed on the outside of the wear-resistant rings (2), wherein the cross-section of the stainless steel layer (3) is U-shaped, and the wear-resistant ring (2) is provided with a boss (21) adapted to the stainless steel layer (3), and the stainless steel layer (3) is installed on the boss (21) in a wrapped manner.
2. The continuously wound glass fiber reinforced plastic liner according to claim 1, characterized in that: It also includes a silicon nitride layer (4) arranged on both side end surfaces of the liner tube body (1) for increasing the hardness of the end surfaces.
3. The continuously wound glass fiber reinforced plastic liner according to claim 2, characterized in that: It also includes an expanded vermiculite powder layer (5) coated on the outer surface of the liner pipe body (1) to have a flame retardant effect.