Pipe column telescopic compensator

Abstract

The utility model belongs to the technical field of compensators, and particularly relates to a pipe column telescopic compensator which comprises a corrugated pipe, a first flange plate and a second flange plate are fixedly connected to the left end and the right end of the corrugated pipe respectively, first connecting plates are fixedly connected to the upper end and the lower end of the first flange plate respectively, and second connecting plates are fixedly connected to the upper end and the lower end of the second flange plate respectively. The first connecting plate and the second connecting plate located on the upper portion are connected through a screw rod, the first connecting plate and the second connecting plate located on the lower portion are connected through a screw rod, a protective cover is fixedly connected to the outer side of the corrugated pipe and comprises an outer cover body fixedly connected to the left portion of the outer side of the corrugated pipe, and an inner cover body is slidably connected into the outer cover body. The inner cover body is fixedly connected to the right portion of the outer side of the corrugated pipe. According to the compensator disclosed by the utility model, the corrugated pipe is covered by the protective cover, and the protective cover formed by a multi-layer structure has wear resistance and corrosion resistance, can buffer external impact force, forms multi-stage protection for the corrugated pipe, improves the protective performance, can ensure the use effect of the compensator, prolongs the service life of the compensator, and is high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of compensator, concretely relates to a pipe column telescopic compensator. BACKGROUND

[0002] The pipe column telescopic compensator is a device for compensating axial, lateral or angular displacement of pipeline system caused by temperature change, pressure fluctuation or external load, and is widely used in the fields of petroleum, chemical industry, electric power and ship.The corrugated pipe compensator is a commonly used one among the pipe column telescopic compensators, but the corrugated pipe outside of the existing corrugated pipe compensator is not provided with a protective structure, so when it is installed in an outdoor place vulnerable to external force impact, the exposed corrugated pipe is prone to mechanical damage due to friction or impact, which not only cannot guarantee the use effect of the compensator, but also reduces the service life of the compensator, and the practicality is not strong. SUMMARY

[0003] The utility model aims at overcoming the defects of the prior art, and provides a pipe column telescopic compensator.

[0004] The utility model discloses a pipe column telescopic compensator, including the corrugated pipe, the corrugated pipe left and right two ends are fixedly connected with first flange disc and second flange disc respectively, the first flange disc upper and lower both ends are fixedly connected with first connecting plate, second connecting plate is fixedly connected on the upper and lower both ends of second flange disc, the first connecting plate and second connecting plate between the upper are connected through screw rod, the first connecting plate and second connecting plate between the lower are connected through screw rod, the corrugated pipe outside is fixedly connected with the protective cover, the protective cover includes the outer cover body fixedly connected on the left part of corrugated pipe outside, the inner cover body is slidably connected in the outer cover body, and the inner cover body is fixedly connected on the right part of corrugated pipe outside.

[0005] Further, the first connecting plate and the second connecting plate are provided with a through hole for the screw rod to pass through, and four nuts are screwed on the same screw rod, and the four nuts are respectively located on the left and right sides of the first connecting plate and the left and right sides of the second connecting plate.

[0006] Further, the inner side wall of the outer cover body is provided with a sliding groove on the upper part and the lower part, the outer side of the inner cover body is fixedly connected with a sliding strip on the upper part and the lower part, and the sliding strip is slidably connected in the sliding groove.

[0007] Further, the outer cover body comprises a first base layer, a first reinforcing layer, a first buffer layer and a first wear-resistant anticorrosive layer arranged in sequence from inside to outside.

[0008] Further, the first reinforcing layer is provided with a first reinforcing rib, the first reinforcing rib is arranged in a ring array in the first reinforcing layer, the first reinforcing rib is a triangular structure, the vertex of the first reinforcing rib is fixedly connected with the first buffer layer, and one side of the first reinforcing rib is fixedly connected with the first base layer.

[0009] Further, the inner cover body comprises a second base layer, a second reinforcing layer, a second buffer layer and a second wear-resistant anticorrosive layer arranged in sequence from inside to outside.

[0010] Further, the second reinforcing layer is provided with a second reinforcing rib, the second reinforcing rib is arranged in a ring array in the second reinforcing layer, the second reinforcing rib is a triangular structure, the vertex of the second reinforcing rib is fixedly connected with the second buffer layer, and one side of the second reinforcing rib is fixedly connected with the second base layer.

[0011] Further, the first buffer layer and the second buffer layer are both made of rubber material, and when the outer cover body or the inner cover body is impacted by the outside, the impact force is buffered through the first buffer layer or the second buffer layer.

[0012] Further, the first wear-resistant anticorrosive layer and the second wear-resistant anticorrosive layer are both made of polytetrafluoroethylene material, the first wear-resistant anticorrosive layer and the second wear-resistant anticorrosive layer can improve the wear-resistant anticorrosive performance of the outer cover body and the inner cover body, prevent the outer cover body and the inner cover body from being damaged, and further improve the protection performance of the outer cover body and the inner cover body on the corrugated pipe.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The pipe column telescopic compensator of the utility model is provided with a protective cover fixedly connected outside the corrugated pipe, the protective cover comprises an outer cover body and an inner cover body slidably connected in the outer cover body, the corrugated pipe is covered by the protective cover, the protective cover can not only protect the outer surface of the corrugated pipe and avoid mechanical damage to the outer surface of the corrugated pipe, but also can adjust the length of the inner cover body extending into the outer cover body during the telescopic compensation of the compensator, so that the protective cover plays a guiding role and has high practicability.

[0015] 2. The pipe column telescopic compensator, the outer cover body comprises first base layer, first reinforcing layer, first buffer layer and first wear-resistant anticorrosive layer arranged in sequence from inside to outside, the inner cover body comprises second base layer, second reinforcing layer, second buffer layer and second wear-resistant anticorrosive layer arranged in sequence from inside to outside, the first wear-resistant anticorrosive layer and the second wear-resistant anticorrosive layer can improve the wear-resistant anticorrosive performance of the outer cover body and the inner cover body, prevent them from being damaged, when the outer cover body or the inner cover body is impacted by the outside, the impact force is buffered through the first buffer layer or the second buffer layer, the first reinforcing rib and the second reinforcing rib can improve the stability of the outer cover body and the inner cover body, that is, the corrugated pipe can be formed with multiple levels of protection, the protection performance is improved, not only the use effect of the compensator can be ensured, but also the service life of the corrugated pipe can be prolonged.

[0016] 3. The pipe column telescopic compensator of the utility model, in the compensator transportation and installation process, the length of the corrugated pipe can be locked through the screw rod and the nut, the corrugated pipe is prevented from being excessively stretched or compressed due to bumping or misoperation, deformation damage is avoided, after installation is completed, the nut is adjusted according to design, the displacement of the corrugated pipe is constrained through mechanical limiting, the compensator is prevented from exceeding the design compensation due to pipeline thermal expansion or pressure fluctuation, the corrugated pipe is protected from plastic deformation, and the compensator is limited to reasonable range telescopic compensation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure diagram of the pipe column telescopic compensator of the utility model.

[0018] Figure 2 It is the structure diagram of the pipe column telescopic compensator of the utility model. Figure 1 It is the enlarged view of A in the structure diagram.

[0019] Figure 3 It is the side sectional view of the outer cover body.

[0020] Figure 4 It is the side sectional view of the outer cover body. Figure 3 It is the enlarged view of B in the structure diagram.

[0021] Figure 5 It is the side sectional view of the inner cover body.

[0022] Figure 6 It is the side sectional view of the inner cover body. Figure 5 It is the enlarged view of C in the structure diagram.

[0023] In the figure: 1 - bellow, 2 - second flange plate, 3 - second connecting plate, 4 - screw rod, 5 - protective cover, 501 - outer cover body, 5011 - sliding groove, 5012 - first base layer, 5013 - first reinforcing layer, 5014 - first buffer layer, 5015 - first wear-resistant anticorrosive layer, 5016 - first reinforcing rib, 502 - inner cover body, 5021 - sliding strip, 5022 - second wear-resistant anticorrosive layer, 5023 - second buffer layer, 5024 - second reinforcing layer, 5025 - second base layer, 5026 - second reinforcing rib, 6 - first connecting plate, 7 - first flange plate. DETAILED DESCRIPTION

[0024] The pipe column telescopic compensator of the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] Referring to Figure 1 A pipe column telescopic compensator, comprising a bellow 1, the bellow 1 is fixedly connected with a first flange plate 7 and a second flange plate 2 at left and right ends respectively, the first flange plate 7 is fixedly connected with a first connecting plate 6 at upper and lower ends, the second flange plate 2 is fixedly connected with a second connecting plate 3 at upper and lower ends, the first connecting plate 6 and the second connecting plate 3 located at the upper are connected through a screw rod 4, the first connecting plate 6 and the second connecting plate 3 located at the lower are connected through a screw rod 4, the bellow 1 is fixedly connected with a protective cover 5 at the outer side, the protective cover 5 comprises an outer cover body 501 fixedly connected at the left part of the outer side of the bellow 1, an inner cover body 502 is slidably connected in the outer cover body 501, and the inner cover body 502 is fixedly connected at the right part of the outer side of the bellow 1.

[0027] Further, the first connecting plate 6 and the second connecting plate 3 are provided with through holes for the screw rod 4 to pass through, four nuts are screwed on the same screw rod 4, and the four nuts are located at the left and right sides of the first connecting plate 6 and the left and right sides of the second connecting plate 3 respectively, so that the compensator can be stretched and contracted within a reasonable range.

[0028] Referring to Figure 1 and Figure 2The outer cover 501 is provided with a sliding groove 5011 on the upper and lower inner side walls, and the outer cover 501 is provided with a sliding strip 5021 on the upper and lower outer side walls, the sliding strip 5021 is slidably connected in the sliding groove 5011, and the sliding strip 5021 is slid in the sliding groove 5011 to adjust the length of the inner cover 502 inserted into the outer cover 501 during the expansion and contraction of the compensator, the outer cover 501 and the inner cover 502 can not only protect the outer surface of the corrugated pipe 1, but also play a guiding role during the expansion and contraction of the compensator, and the utility is strong.

[0029] Referring to Figure 3 and Figure 4 The outer cover 501 comprises a first base layer 5012, a first reinforcing layer 5013, a first buffer layer 5014 and a first wear-resistant anticorrosive layer 5015 arranged in sequence from inside to outside.

[0030] Referring to Figure 4 The first reinforcing layer 5013 is provided with a first reinforcing rib 5016, the first reinforcing rib 5016 is arranged in a ring array in the first reinforcing layer 5013, the first reinforcing rib 5016 is a triangular structure, the vertex of the first reinforcing rib 5016 is fixedly connected with the first buffer layer 5014, and one side of the first reinforcing rib 5016 is fixedly connected with the first base layer 5012, so that the stability of the outer cover 501 can be improved, the corrugated pipe 1 can be better protected, and mechanical damage to the outer surface of the corrugated pipe 1 can be avoided.

[0031] Referring to Figure 5 and Figure 6 The inner cover 502 comprises a second base layer 5025, a second reinforcing layer 5024, a second buffer layer 5023 and a second wear-resistant anticorrosive layer 5022 arranged in sequence from inside to outside.

[0032] Referring to Figure 6 The second reinforcing layer 5024 is provided with a second reinforcing rib 5026, the second reinforcing rib 5026 is arranged in a ring array in the second reinforcing layer 5024, the second reinforcing rib 5026 is a triangular structure, the vertex of the second reinforcing rib 5026 is fixedly connected with the second buffer layer 5023, and one side of the second reinforcing rib 5026 is fixedly connected with the second base layer 5025, so that the stability of the inner cover 502 can be improved, the corrugated pipe 1 can be better protected, and mechanical damage to the outer surface of the corrugated pipe 1 can be avoided.

[0033] Further, the first buffer layer 5014 and the second buffer layer 5023 are made of rubber material, and when the outer cover 501 or the inner cover 502 is impacted by the outside, the impact force is buffered by the first buffer layer 5014 or the second buffer layer 5023.

[0034] Further, the first wear-resistant anticorrosive layer 5015 and the second anticorrosive wear-resistant layer are both made of polytetrafluoroethylene material, and the first wear-resistant anticorrosive layer 5015 and the second anticorrosive wear-resistant layer are arranged to improve the wear-resistant anticorrosive performance of the outer cover body 501 and the inner cover body 502, prevent the outer cover body 501 and the inner cover body 502 from being damaged, and further improve the protection performance on the corrugated pipe 1.

[0035] The working principle of the utility model is: when the pipe column telescopic compensator is used, the pipe column telescopic compensator is installed at the pipe connection through the first flange plate 7 and the second flange plate 2, the inner cover body 502 is slidingly connected in the outer cover body 501, the corrugated pipe 1 is covered in the outer cover body 501 and the inner cover body 502, then the nut is loosened, the displacement of the corrugated pipe 1 is constrained through mechanical limiting in the process of telescopic compensation of the compensator, the compensator is prevented from exceeding the design compensation amount due to thermal expansion and contraction or pressure fluctuation of the pipe, the corrugated pipe 1 is prevented from plastic deformation, the compensator is limited to telescopic compensation in a reasonable range, at this time, the slide 5021 slides in the sliding groove 5011 to adjust the length of the inner cover body 502 inserted into the outer cover body 501, and the sliding groove 5011 plays a guiding role in the process of telescopic compensation of the compensator; the outer cover body 501 and the inner cover body 502 are both formed by a multi-layer structure, not only have wear-resistant anticorrosive performance and prevent the outer cover body 501 and the inner cover body 502 from being damaged, but also can buffer external impact force, have high stability, can form multi-stage protection on the corrugated pipe 1, improve the protection performance, not only can ensure the use effect of the compensator, but also can prolong the service life of the corrugated pipe 1, and have high practicability.

[0036] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meaning of a person skilled in the art to which the utility model belongs. The similar words such as "one" or "a" used in the specification and claims of the present application do not necessarily mean quantity limitation. The similar words such as "include" or "contain" mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and other elements or objects are not excluded. The similar words such as "connect" or "connected" are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect.

[0037] The exemplary embodiments of the utility model are described in detail above with reference to the preferred embodiments, however, those skilled in the art can understand that various modifications and improvements can be made to the above specific embodiments without departing from the concept of the utility model, and various combinations of the technical features and structures proposed by the utility model can be made without exceeding the protection scope of the utility model.

Claims

1. A pipe string expansion compensator comprising a bellows, characterised in that: The corrugated pipe is fixedly connected with a first flange plate and a second flange plate at left and right ends respectively, the first flange plate is fixedly connected with a first connecting plate at upper and lower ends, the second flange plate is fixedly connected with a second connecting plate at upper and lower ends, the first connecting plate and the second connecting plate at the upper part are connected through a screw rod, the first connecting plate and the second connecting plate at the lower part are connected through a screw rod, the corrugated pipe is fixedly connected with a protective cover outside, the protective cover comprises an outer cover body fixedly connected to the left part outside the corrugated pipe, and an inner cover body is slidably connected in the outer cover body, and the inner cover body is fixedly connected to the right part outside the corrugated pipe.

2. The pipe string expansion compensator of claim 1, wherein: The first connecting plate and the second connecting plate are provided with a through hole for the screw rod to pass through, four nuts are screwed on the same screw rod, and the four nuts are located on the left and right sides of the first connecting plate and the left and right sides of the second connecting plate respectively.

3. The pipe string expansion compensator of claim 1, wherein: The outer cover body is provided with a sliding groove on the inner side wall of the upper part and the lower part, and the inner cover body is fixedly connected with a sliding strip on the outer side of the upper part and the lower part.

4. The pipe string expansion compensator of claim 1, wherein: The outer cover body comprises a first base layer, a first reinforcing layer, a first buffer layer and a first wear-resistant anticorrosive layer arranged in sequence from inside to outside.

5. The pipe string expansion compensator of claim 4, wherein: The first reinforcing layer is provided with a first reinforcing rib, the first reinforcing rib is arranged in a ring array in the first reinforcing layer, the first reinforcing rib is a triangular structure, the top of the first reinforcing rib is fixedly connected with the first buffer layer, and one side of the first reinforcing rib is fixedly connected with the first base layer.

6. The pipe string expansion compensator of claim 5, wherein: The inner cover body comprises a second base layer, a second reinforcing layer, a second buffer layer and a second wear-resistant anticorrosive layer arranged in sequence from inside to outside.

7. The pipe string stretch compensator of claim 6, wherein: The second reinforcing layer is provided with a second reinforcing rib, the second reinforcing rib is arranged in a ring array in the second reinforcing layer, the second reinforcing rib is a triangular structure, the top of the second reinforcing rib is fixedly connected with the second buffer layer, and one side of the second reinforcing rib is fixedly connected with the second base layer.

8. The pipe string stretch compensator of claim 7, wherein: The first buffer layer and the second buffer layer are made of rubber material.

9. The pipe string stretch compensator of claim 7, wherein: The first wear-resistant anticorrosive layer and the second wear-resistant anticorrosive layer are made of polytetrafluoroethylene material.

Images