High pressure corrugated compensator with sealing ring

Abstract

The utility model provides a kind of high pressure corrugated compensator with sealing ring belongs to pipeline system technical field, to solve the problem that existing existing guide support is mostly rigid constraint structure, easy to form excessive constraint to compensator, including guide support base, corrugated compensator main body, pull rod connecting piece, adjust limiting pull rod, adjust limiting bolt, multiple sealing mechanism and guide adjusting mechanism;The corrugated compensator main body is arranged above guide support base;The pull rod connecting piece is respectively welded in the flange plate outer periphery of corrugated compensator main body;The adjust limiting pull rod is respectively inserted in the inside of pull rod connecting piece;The adjust limiting bolt is respectively threadedly connected in the outer periphery of adjust limiting pull rod;The multiple sealing mechanism is arranged in the outside of corrugated compensator main body;The guide adjusting mechanism is arranged above guide support base, improves the reliability and security of high pressure pipeline system operation.

Description

Technical Field

[0001] This utility model belongs to the field of pipeline system technology, and more specifically, it relates to a high-pressure bellows compensator with a sealing ring. Background Technology

[0002] High-pressure corrugated compensators are core flexible connection elements in pipeline systems that cope with high-temperature and high-pressure conditions. They are mainly composed of multi-layer stainless steel or high-temperature alloy corrugated pipes and components such as flanges, tie rods, and flow guides. They can absorb displacement caused by thermal expansion and contraction, mechanical vibration, or foundation settlement through elastic deformation, thereby reducing pipeline stress. They come in a variety of structural types, including straight pipe pressure balance type, high-temperature resistant type, and direct-buried type, to meet the needs of different scenarios.

[0003] The existing application number is CN202021776300.6. This utility model discloses a novel high-temperature and high-pressure bellows compensator, including a bellows compensator body and flanges. Connecting seats are fixedly installed at the four corners of opposite sides of the two flanges. The connecting seats are located outside the bellows compensator body. A tension spring is fixedly installed outside the connecting seat. A cap is fixedly installed at the end of the tension spring away from the connecting seat, and a pull rod is fixedly installed in the middle of the cap near the connecting seat. By adding connecting seats to opposite sides of the flanges, the installation efficiency of the compensator is improved, saving time and effort, reducing labor intensity, and further improving the economic benefits of installation. By adding a high-strength transparent protective sleeve to the outside of the flanges, the surface of the flanges is effectively protected, preventing damage caused by bumps during handling and movement, thus affecting the installation and use of the flanges, further ensuring the installation and use of the bellows compensator body.

[0004] Based on the above, in practical applications, existing high-pressure bellows compensators usually require the installation of guide supports. Radial guidance and positioning are achieved through the sliding fit between the compensator and the support to limit the radial displacement of the pipeline during the transportation of high-pressure media. However, when the high-pressure bellows compensator is in operation, the displacement it generates exhibits multi-angle composite characteristics, including axial expansion and contraction, as well as angular deflection and slight lateral displacement. Existing guide supports are mostly rigid constraint structures, which can easily lead to excessive constraint on the compensator. This can easily cause stress concentration in local areas of the bellows, disrupting the coordination of its elastic deformation and leading to bellows instability. After long-term operation, this can easily cause damage problems such as bellows cracking and sealing structure failure. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a high-pressure bellows compensator with a sealing ring. This solves the problem that existing high-pressure bellows compensators typically require guide supports in practical applications. Radial guidance and positioning are achieved through the sliding fit between the compensator and the support to limit radial displacement of the pipeline during the transport of high-pressure media. However, during operation, the displacement generated by the high-pressure bellows compensator exhibits multi-angle composite characteristics, including axial expansion and contraction, angular deflection, and slight lateral displacement. Existing guide supports are mostly rigid constraint structures, which can easily over-constrain the compensator, leading to localized stress concentration in the bellows, disrupting the coordination of its elastic deformation, and ultimately causing bellows instability. Long-term operation can result in bellows cracking, sealing structure failure, and other damage problems.

[0006] The purpose and effect of this utility model of a high-voltage bellows compensator with a sealing ring are achieved by the following specific technical means: A high-pressure bellows compensator with a sealing ring includes a guide support base, a bellows compensator body, tie rod connectors, adjusting and limiting tie rods, adjusting and limiting bolts, a multiple sealing mechanism, and a guide adjustment mechanism. The bellows compensator body is positioned above the guide support base. Multiple sets of tie rod connectors are welded to the outer periphery of the flange of the bellows compensator body. Multiple sets of adjusting and limiting tie rods are threaded and inserted into the inner side of the tie rod connectors. Multiple sets of adjusting and limiting bolts are threaded onto the outer periphery of the adjusting and limiting tie rods and are positioned on the front and rear sides of the tie rod connectors. The multiple sealing mechanism is located on the outer side of the bellows compensator body. The guide adjustment mechanism is positioned above the guide support base.

[0007] Furthermore, the multiple sealing mechanism includes: a first inner sealing ring and a second inner sealing ring; two sets of the first inner sealing ring are provided, both sets of the first inner sealing ring are metal ring gasket structures, and the two sets of the first inner sealing ring are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body; two sets of the second inner sealing ring are provided, both sets of the second inner sealing ring are elastic graphite sealing ring structures, and the two sets of the second inner sealing ring are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body.

[0008] Furthermore, the multiple sealing mechanism also includes an outer sealing ring; two sets of outer sealing rings are provided, both sets of outer sealing rings are self-tightening lip sealing structures, and the two sets of outer sealing rings are respectively snapped onto the outside of the flange of the bellows compensator body.

[0009] Furthermore, the guiding adjustment mechanism includes: an adjusting guide rail and an adjusting guide slider; the adjusting guide rail is fixedly connected above the guiding support base; two sets of adjusting guide sliders are provided, the two sets of adjusting guide sliders are slidably connected above the adjusting guide rail, and the upper ends of the two sets of adjusting guide sliders are fixedly connected to the pull rod connector.

[0010] Furthermore, the guide adjustment mechanism also includes: an adjustment connector; the adjustment connector is provided in two sets, and the two sets of adjustment connectors are respectively ball-head connected to the upper end of the adjustment guide slider.

[0011] Furthermore, the guiding adjustment mechanism also includes: a guide limiting component and a guide limiting bolt; multiple sets of guide limiting components are provided, and the multiple sets of guide limiting components are respectively fixedly connected to the upper part of the adjusting guide slider, and the multiple sets of guide limiting components are respectively arranged on the outer periphery of the adjusting connector; multiple sets of guide limiting bolts are provided, and the multiple sets of guide limiting bolts are respectively threadedly connected to the inner side of the guide limiting component.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention employs a multi-layered sealing mechanism. By applying pre-tightening force through the fastening flange bolts, the first and second inner sealing rings undergo compression deformation, allowing them to fit snugly against the flange. After the pipeline and the bellows compensator body are assembled, the outer sealing ring is installed on the outside of the bellows compensator body and locked with clamps. Through three independent sealing surfaces, multiple protective barriers are formed. Even if a single seal experiences minor leakage due to wear or corrosion, the remaining sealing structure can still maintain the sealing effect, preventing direct leakage of high-pressure media and avoiding safety accidents. This meets the stringent requirements for sealing systems in the petrochemical, nuclear power, and other fields.

[0013] This invention, through the setting of a guide adjustment mechanism and the cooperation of the guide slider and the guide rail, achieves the axial guiding effect of the bellows compensator body. By rotating the guide limit bolt, the rotation angle of the adjustment connector is limited. This not only limits the rotation angle of the adjustment connector but also accommodates the slight angular displacement of the bellows compensator body, ensuring smooth guidance during displacement and avoiding damage to the elastic deformation coordination of the bellows compensator body due to excessive constraint. The overall structure not only meets the motion guidance requirements of the bellows compensator body under working conditions but also prevents instability of the bellows compensator body by limiting excessive displacement, extending the service life of the bellows compensator body and improving the reliability and safety of high-pressure pipeline system operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the second inner sealing ring structure of this utility model.

[0016] Figure 3 This is a schematic diagram of the outer sealing ring structure of this utility model.

[0017] Figure 4 This is a schematic diagram of the adjusting connector structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the guide and limit bolt structure of this utility model.

[0019] In the diagram, the correspondence between component names and drawing numbers is as follows: 1. Guide support base; 101. First inner sealing ring; 102. Second inner sealing ring; 103. Outer sealing ring; 2. Corrugated compensator body; 3. Tie rod connector; 301. Adjusting guide rail; 302. Adjusting guide slider; 303. Adjusting connector; 304. Guide limiting component; 305. Guide limiting bolt; 4. Adjusting limiting tie rod; 5. Adjusting limiting bolt. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0021] Example 1: As attached Figures 1 to 3 As shown: This utility model provides a high-pressure bellows compensator with a sealing ring, including a guide support base 1, a bellows compensator body 2, a tie rod connector 3, an adjusting and limiting tie rod 4, adjusting and limiting bolts 5, and a multiple sealing mechanism; the bellows compensator body 2 is disposed above the guide support base 1; multiple sets of tie rod connectors 3 are provided, and the multiple sets of tie rod connectors 3 are respectively welded to the outer periphery of the flange of the bellows compensator body 2; multiple sets of adjusting and limiting tie rods 4 are provided, and the multiple sets of adjusting and limiting tie rods 4 are all threaded tie rod structures, and the multiple sets of adjusting and limiting tie rods 4 are respectively inserted into the inner side of the tie rod connector 3; multiple sets of adjusting and limiting bolts 5 are provided, and the multiple sets of adjusting and limiting bolts 5 are respectively threaded to the outer periphery of the adjusting and limiting tie rod 4, and the multiple sets of adjusting and limiting bolts 5 are respectively disposed on the front and rear sides of the tie rod connector 3; the multiple sealing mechanism is disposed on the outer side of the bellows compensator body 2.

[0022] The multi-sealing mechanism includes: a first inner sealing ring 101 and a second inner sealing ring 102; two sets of the first inner sealing ring 101 are provided, both sets of the first inner sealing ring 101 are metal ring gasket structures, and the two sets of the first inner sealing ring 101 are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body 2; two sets of the second inner sealing ring 102 are provided, both sets of the second inner sealing ring 102 are elastic graphite sealing ring structures, and the two sets of the second inner sealing ring 102 are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body 2.

[0023] The multiple sealing mechanism also includes an outer sealing ring 103; there are two sets of outer sealing rings 103, both sets of outer sealing rings 103 are self-tightening lip sealing structures, and the two sets of outer sealing rings 103 are respectively snapped onto the outside of the flange of the bellows compensator body 2.

[0024] The specific usage and function of this embodiment are as follows: During installation, a pre-tightening force is applied by tightening the flange bolts, causing the first inner sealing ring 101 and the second inner sealing ring 102 to compress and deform, so that the first inner sealing ring 101 and the second inner sealing ring 102 fit against the flange. After the pipeline and the bellows compensator body 2 are assembled, the outer sealing ring 103 is installed on the outside of the bellows compensator body 2 and locked with a clamp. Multiple protective barriers are formed by three independent sealing surfaces. Even if a single seal leaks a small amount due to wear or corrosion, the remaining sealing structure can still maintain the sealing effect, avoiding direct leakage of high-pressure media and causing safety accidents, thus meeting the stringent requirements of sealing systems in the petrochemical, nuclear power and other fields.

[0025] Example 2: This utility model provides a high-voltage bellows compensator with a sealing ring, based on Embodiment 1, such as... Figures 1 to 5 As shown, it also includes a guide adjustment mechanism, which is located above the guide support base 1.

[0026] The guiding adjustment mechanism includes: an adjusting guide rail 301 and an adjusting guide slider 302; the adjusting guide rail 301 is fixedly connected above the guiding support base 1; two sets of adjusting guide sliders 302 are provided, and the two sets of adjusting guide sliders 302 are slidably connected above the adjusting guide rail 301, and the upper ends of the two sets of adjusting guide sliders 302 are fixedly connected to the pull rod connector 3.

[0027] The guide adjustment mechanism also includes an adjustment connector 303; two sets of adjustment connectors 303 are provided, and the two sets of adjustment connectors 303 are respectively ball-head connected to the upper end of the adjustment guide slider 302.

[0028] The guide adjustment mechanism also includes: guide limiting member 304 and guide limiting bolt 305; multiple sets of guide limiting members 304 are provided, and multiple sets of guide limiting members 304 are fixedly connected to the upper part of the adjusting guide slider 302, and multiple sets of guide limiting members 304 are respectively provided on the outer periphery of the adjusting connector 303; multiple sets of guide limiting bolt 305 are provided, and multiple sets of guide limiting bolt 305 are threadedly connected to the inner side of the guide limiting member 304.

[0029] The specific usage and function of this embodiment are as follows: By adjusting the cooperation between the guide slider 302 and the adjusting guide rail 301, the axial guiding effect of the corrugated compensator body 2 is achieved. By rotating the guide limit bolt 305, the rotation of the guide limit bolt 305 restricts the rotation angle of the adjusting connector 303, allowing the corrugated compensator body 2 to still be smoothly guided when it deviates slightly in the angular direction, while limiting excessive displacement and preventing the corrugated compensator body 2 from becoming unstable.

[0030] The following points should be noted in this article: 1. The accompanying drawings of this embodiment only involve the structures involved in this embodiment; other structures can refer to the general design.

[0031] 2. Where there is no conflict, this embodiment and the features in the embodiment can be combined with each other to obtain new embodiments.

[0032] The above are merely specific implementations of this embodiment, but the protection scope of this embodiment is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this embodiment should be included within the protection scope of this embodiment. Therefore, the protection scope of this embodiment should be determined by the protection scope of the claims.

Claims

1. A high-voltage bellows compensator with a sealing ring, characterized in that: The system includes a guide support base (1), a corrugated compensator body (2), a tie rod connector (3), an adjustment limiting tie rod (4), an adjustment limiting bolt (5), a multiple sealing mechanism, and a guide adjustment mechanism. The corrugated compensator body (2) is located above the guide support base (1). Multiple sets of tie rod connectors (3) are provided, and each set of tie rod connectors (3) is welded to the outer periphery of the flange of the corrugated compensator body (2). Multiple sets of adjustment limiting tie rods (4) are provided, and each set of adjustment limiting tie rods (4) is a threaded tie rod structure. Each set of adjustment limiting tie rods (4) is inserted into the inner side of the tie rod connector (3). Multiple sets of adjustment limiting bolts (5) are provided, and each set of adjustment limiting bolts (5) is threaded to the outer periphery of the adjustment limiting tie rod (4). Each set of adjustment limiting bolts (5) is located on the front and rear sides of the tie rod connector (3). The multiple sealing mechanism is located on the outer side of the corrugated compensator body (2). The guide adjustment mechanism is located above the guide support base (1).

2. The high-voltage bellows compensator with a sealing ring as described in claim 1, characterized in that: The multiple sealing mechanism includes: a first inner sealing ring (101) and a second inner sealing ring (102); the first inner sealing ring (101) is provided in two sets, both sets of the first inner sealing ring (101) are metal ring gasket structures, and the two sets of the first inner sealing ring (101) are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body (2); the second inner sealing ring (102) is provided in two sets, both sets of the second inner sealing ring (102) are elastic graphite sealing ring structures, and the two sets of the second inner sealing ring (102) are respectively snapped into the inner side of the flange sealing groove of the bellows compensator body (2).

3. The high-voltage bellows compensator with a sealing ring as described in claim 2, characterized in that: The multiple sealing mechanism also includes an outer sealing ring (103); two sets of the outer sealing ring (103) are provided, and both sets of the outer sealing ring (103) are self-tightening lip sealing structures. The two sets of outer sealing rings (103) are respectively snapped onto the outside of the flange of the bellows compensator body (2).

4. The high-voltage bellows compensator with a sealing ring as described in claim 1, characterized in that: The guiding adjustment mechanism includes: an adjusting guide rail (301) and an adjusting guide slider (302); the adjusting guide rail (301) is fixedly connected above the guiding support base (1); there are two sets of adjusting guide sliders (302), and the two sets of adjusting guide sliders (302) are slidably connected above the adjusting guide rail (301), and the upper ends of the two sets of adjusting guide sliders (302) are fixedly connected to the pull rod connector (3).

5. The high-voltage bellows compensator with a sealing ring as described in claim 4, characterized in that: The guide adjustment mechanism also includes: an adjustment connector (303); two sets of adjustment connectors (303) are provided, and the two sets of adjustment connectors (303) are respectively ball-head connected to the upper end of the adjustment guide slider (302).

6. The high-voltage bellows compensator with a sealing ring as described in claim 5, characterized in that: The guiding adjustment mechanism further includes: a guide limiting member (304) and a guide limiting bolt (305); the guide limiting member (304) is provided in multiple sets, and the multiple sets of guide limiting members (304) are respectively fixedly connected above the adjusting guide slider (302), and the multiple sets of guide limiting members (304) are respectively provided on the outer periphery of the adjusting connector (303); the guide limiting bolt (305) is provided in multiple sets, and the multiple sets of guide limiting bolts (305) are respectively threadedly connected to the inner side of the guide limiting member (304).

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