Bypass pressure balance type ripple compensator

By using a cross-shaped fixing bolt and mounting assembly design between the corrugated compensator and the external pipe, the wear and leakage problems caused by the offset of the connector are solved, achieving a more stable connection and a longer pipe service life.

CN223411716UActive Publication Date: 2025-10-03CANGZHOU XINTAI MECHANICAL EQUIP CO LTD
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Patent Information

Application Number
CN202423132004.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-10-03
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

During the bending deformation process of the existing pressure-balanced bellows compensator, the connector and the external pipe are easily offset, resulting in wear and leakage.

Method used

Four sets of fixing bolts and mounting components arranged in a cross shape are used, including connecting clamps, fixing clamps, threaded rings, fastening rings, anti-slip rings and nuts. These components are used to firmly connect the corrugated compensator body to the external pipe, enhance the connection stability and improve the sealing.

Benefits of technology

It effectively prevents wear on the connector, reduces leakage, extends the service life of the pipeline, and improves the stability and sealing of the connection.

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Abstract

The utility model relates to the technical field of corrugated compensators, and provides a bypass pressure balance type corrugated compensator which comprises a communicating pipeline, corrugated compensator bodies are symmetrically and fixedly connected to the two ends of the communicating pipeline, and installation assemblies are arranged at the outer ends of the corrugated compensator bodies. According to the utility model, firstly, the connecting snap ring is clamped at the outer end of the corrugated compensator body, the fixing snap ring is clamped at the outer ring part of the external pipeline, and the corrugated compensator body and the external pipeline are respectively fixed through the fastening ring and the threaded rings at the outer ends of the connecting snap ring and the fixing snap ring, so that the mounting and the dismounting are simple and convenient; meanwhile, the mounting positions of the connecting clamping ring and the fixing clamping ring are fixed through four sets of fixing bolts and nuts connected between the connecting clamping ring and the fixing clamping ring, the connecting part of the pipeline is prevented from tilting in the bending and stretching process of the corrugated compensator body, and therefore the abrasion degree of the connecting part of the pipeline is reduced; and meanwhile, the phenomenon of liquid leakage at the joint of the pipeline is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of corrugated compensators, and in particular to a bypass pressure balanced corrugated compensator. Background Art

[0002] A pressure-balancing bellows compensator is a device used to reduce pressure fluctuations in liquids or gases in pipelines. It achieves this by installing a series of curved bellows on the pipeline. Compared to traditional spiral or U-shaped elbows, this novel design can more effectively reduce pressure pulsation and noise in the pipeline, improving system stability and operational efficiency. When the displacement of the liquid in the pipeline causes the bellows to bend, the liquid exerts an opposing force on the bellows, maintaining pressure balance across the pipeline. Because the pressure difference on both sides of the bellows is small, the fluid flows naturally and smoothly, thereby reducing pressure fluctuations in the pipeline.

[0003] Existing pressure-balanced bellows compensators connect their ends to two sets of external pipes using bolts and nuts. As liquid passes through, the bellows bend and expand, causing the pipe joints to bend and tilt under stress. This can lead to large gaps at the pipe joints, increasing wear and tear and potentially causing leakage. To address this issue, a bypass pressure-balanced bellows compensator has been proposed. Four sets of fixing bolts arranged in a cross shape connect the bellows compensator body to the external pipes to address this issue. Utility Model Content

[0004] The utility model provides a bypass pressure-balanced bellows compensator, which solves the problems in the related art of the displacement of the connector and the external pipe, wear of the connector and leakage of liquid during the bending deformation of the bellows compensator body.

[0005] The technical solution of the utility model is as follows:

[0006] A bypass pressure balanced bellows compensator includes a connecting pipe, wherein the two ends of the connecting pipe are symmetrically fixedly connected with a bellows compensator body, the outer end of the bellows compensator body is provided with an installation assembly, and the installation assembly includes a connecting clamp provided at the outer end of the bellows compensator body, the outer end of the connecting clamp is provided with a fixing clamp, the outer ends of the connecting clamp and the fixing clamp are both fixedly connected with a threaded ring, the outer end of the threaded ring is threadedly connected with a fastening ring, a fixing bolt is slidably connected between the connecting clamp and the fixing clamp, and both ends of the fixing bolt are threadedly connected with nuts.

[0007] Optionally, the fixing bolts are provided in four groups and are arranged in a cross shape, and the mounting assembly further includes an anti-slip ring sleeved on the inner wall of the connecting clamp ring and the fixing clamp ring.

[0008] Optionally, the interior of the anti-slip ring is provided with an internal thread and is made of rubber material, and a clamping groove is provided on one side of the connecting clamp ring.

[0009] Optionally, the height of the outer circular ring of the clamping groove is greater than the height of the inner circular ring thereof, and a sealing ring is clamped inside the clamping groove.

[0010] Optionally, a connecting plate is fixedly connected to one side of the connecting clamp, and the connecting plate is fixedly connected to the outer end of the corrugated compensator body.

[0011] Optionally, the side end of the connecting pipe and the outer end of the connecting plate are fixedly connected to a connecting seat, the connecting seat located at the outer end of the connecting plate is rotatably connected to a sliding rod inside, the connecting seat located at the side end of the connecting pipe is rotatably connected to a sleeve rod inside, and the sliding rod is slidably connected to the inside of the sleeve rod.

[0012] Optionally, a spring is fixedly connected between the sliding rod and the sleeve rod.

[0013] Optionally, the sliding rods and the sleeve rods are each provided with four groups, and the four groups of sliding rods and the sleeve rods are arranged in a cross shape.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] 1. In the utility model, the connecting clamp is first clamped to the outer end of the corrugated compensator body, and the fixed clamp is clamped to the outer ring of the external pipe, and the corrugated compensator body and the external pipe are fixed respectively by the fastening ring and the threaded ring between the connecting clamp and the outer end of the fixed open ring. The installation and disassembly are simple and convenient. At the same time, the installation positions of the connecting clamp and the fixed clamp are fixed by four groups of fixing bolts and nuts connected between the connecting clamp and the fixed clamp to prevent the connection part of the pipe from warping during the bending and expansion of the corrugated compensator body, thereby reducing the wear of the pipe connection head, extending the service life of the pipe, and preventing leakage at the connection of the pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the installation assembly of the utility model;

[0019] Figure 3 This is a structural diagram of the connecting clamp of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure between the connecting plate and the sliding rod of the utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the sliding rod and the sleeve rod of the utility model.

[0022] In the figure: 1. Connecting pipe; 2. Bellows compensator body; 3. Mounting assembly; 301. Connecting clamp; 302. Fixing clamp; 303. Threaded ring; 304. Fastening ring; 305. Fixing bolt; 306. Nut; 307. Anti-slip ring; 4. Snap-in groove; 5. Sealing ring; 6. Connecting plate; 7. Sliding rod; 8. Sleeve rod; 9. Spring. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0024] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically shown or labeled. In this document, "one" not only means "only one" but also "more than one," and "several" includes "two" and "more than two."

[0025] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0026] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] Example 1

[0028] Reference Figures 1 to 3, which is the first embodiment of the utility model, proposes a bypass pressure balanced bellows compensator, including a connecting pipe 1, with a bellows compensator body 2 symmetrically fixedly connected at both ends of the connecting pipe 1, and an installation component 3 provided at the outer end of the bellows compensator body 2, and the installation component 3 includes a connecting clamp 301 provided at the outer end of the bellows compensator body 2, and a fixing clamp 302 is provided at the outer end of the connecting clamp 301. The outer ends of the connecting clamp 301 and the fixing clamp 302 are both fixedly connected with a threaded ring 303, and the outer ends of the threaded ring 303 are threadedly connected with a fastening ring 304, and a fixing bolt 305 is slidably connected between the connecting clamp 301 and the fixing clamp 302, and nuts 306 are threadedly connected at both ends of the fixing bolt 305. The purpose of this setting is that before installing the bellows compensator body 2 and the external pipe, the fixing clamp 302 is first clamped to the outer end of the external pipe, and then the connecting clamp 301 at the outer end of the bellows compensator body 2 is clamped to one end of the external pipe, and two sets of fastening rings 304 are used to connect with the connecting clamp 301 and the threaded ring 303 at the outer end of the fixing clamp 302 respectively, so that the bellows compensator body 2 and the external pipe are easy to install and disassemble, and four sets of fixing bolts 305 and nuts 306 are used to connect the connecting clamp 301 and the fixing clamp 302. During the bending and expansion of the bellows compensator body 2, the fixing bolts 305 enhance the stability of the connection between the bellows compensator body 2 and the external pipe, prevent the connection head of the two sets of pipes from being offset and causing wear of the outer end thereof, extend the service life of the pipe, and prevent leakage at the connection of the two sets of pipes.

[0029] Optionally, four sets of fixing bolts 305 are provided and arranged in a cross shape. The mounting assembly 3 also includes an anti-slip ring 307 sleeved on the inner walls of the connecting clamp ring 301 and the fixing clamp ring 302. The anti-slip ring 307 has an internal thread and is made of rubber material. A clamping groove 4 is formed on one side of the connecting clamp ring 301. The purpose of this arrangement is to increase the friction between the connecting clamp ring 301 and the fixing clamp ring 302 and the corrugated compensator body 2 and the external pipe, respectively, to prevent the connecting clamp ring 301 and the fixing clamp ring 302 from sliding on the outside of the corrugated compensator body 2 and the external pipe, respectively, during the expansion and contraction of the corrugated compensator body 2, thereby affecting the stability of the pipe connection.

[0030] Example 2

[0031] Reference Figure 4~Figure 5 , which is the second embodiment of the present utility model, is different from the first embodiment in that:

[0032] Compared to Example 1, the outer ring height of the clamping groove 4 is further increased to a greater height than the inner ring height, and a sealing ring 5 is secured within the clamping groove 4. This configuration aims to enhance the sealing performance of the connection between the bellows compensator body 2 and the external pipe. The outer ring height of the clamping groove 4 is increased to a greater height than the inner ring height, thereby reducing wear on the bellows compensator body 2 by the connecting clamp 301 when the pipe connection is subjected to bending forces.

[0033] Optionally, a connecting plate 6 is fixedly connected to one side of the connecting clamp 301, and the connecting plate 6 is fixedly connected to the outer end of the corrugated compensator body 2. The side end of the connecting pipe 1 and the outer end of the connecting plate 6 are fixedly connected to a connecting seat. A sliding rod 7 is rotatably connected to the inside of the connecting seat located at the outer end of the connecting plate 6. A sleeve rod 8 is rotatably connected to the inside of the connecting seat located at the side end of the connecting pipe 1. The sliding rod 7 is slidably connected to the inside of the sleeve rod 8. A spring 9 is fixedly connected between the sliding rod 7 and the sleeve rod 8. There are four groups of sliding rods 7 and sleeve rods 8, and the four groups of sliding rods 7 and sleeve rods 8 are arranged in a cross shape. The purpose of this setting is that when the liquid passes through the interior of the bellows compensator body 2, the bellows compensator body 2 will not only bend but also stretch. At this time, the slide rod 7 slides inside the sleeve rod 8, and the slide rod 7 and the sleeve rod 8 rotate in the connecting plate 6 and the connecting seat outside the pipeline 1 respectively, and through the compression and release of the spring 9, the stress generated during the deformation of the bellows compensator body 2 is reduced, thereby avoiding the bellows compensator body 2 from being damaged due to the large bending amplitude.

[0034] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A bypass pressure balanced bellows compensator, characterized in that: The invention comprises a connecting pipe (1), wherein both ends of the connecting pipe (1) are symmetrically fixedly connected to a corrugated compensator body (2), an outer end of the corrugated compensator body (2) is provided with a mounting assembly (3), and the mounting assembly (3) comprises a connecting clamp (301) provided at the outer end of the corrugated compensator body (2), an outer end of the connecting clamp (301) is provided with a fixing clamp (302), the outer ends of the connecting clamp (301) and the fixing clamp (302) are both fixedly connected to a threaded ring (303), the outer end of the threaded ring (303) is threadedly connected to a fastening ring (304), a fixing bolt (305) is slidably connected between the connecting clamp (301) and the fixing clamp (302), and both ends of the fixing bolt (305) are threadedly connected to a nut (306).

2. A bypass pressure balanced bellows compensator according to claim 1, characterized in that: The fixing bolts (305) are provided in four groups and are arranged in a cross shape. The mounting assembly (3) further includes an anti-slip ring (307) sleeved on the inner walls of the connecting clamp ring (301) and the fixing clamp ring (302).

3. The bypass pressure balanced bellows compensator according to claim 2, characterized in that: The anti-slip ring (307) is provided with an internal thread inside and is made of rubber material, and a clamping groove (4) is provided on one side of the connecting clamp ring (301).

4. The bypass pressure balanced bellows compensator according to claim 3, characterized in that: The height of the outer circular ring of the clamping groove (4) is greater than the height of the inner circular ring thereof, and a sealing ring (5) is clamped inside the clamping groove (4).

5. The bypass pressure balanced bellows compensator according to claim 1, characterized in that: A connecting plate (6) is fixedly connected to one side of the connecting clamp (301), and the connecting plate (6) is fixedly connected to the outer end of the corrugated compensator body (2).

6. The bypass pressure balanced bellows compensator according to claim 5, characterized in that: The side end of the connecting pipe (1) and the outer end of the connecting plate (6) are both fixedly connected to a connecting seat, the connecting seat at the outer end of the connecting plate (6) is rotatably connected to a sliding rod (7), the connecting seat at the side end of the connecting pipe (1) is rotatably connected to a sleeve rod (8), and the sliding rod (7) is slidably connected to the inside of the sleeve rod (8).

7. The bypass pressure balanced bellows compensator according to claim 6, characterized in that: A spring (9) is fixedly connected between the sliding rod (7) and the sleeve rod (8).

8. The bypass pressure balanced bellows compensator according to claim 6, characterized in that: The sliding rods (7) and the sleeve rods (8) are each provided with four groups, and the four groups of sliding rods (7) and sleeve rods (8) are arranged in a cross shape.