Impact-resistant corrugation-armoring integrated protection structure of nuclear-grade corrugated pipe expansion joint

Abstract

The utility model discloses an anti-impact corrugation-armoring integrated protection structure of a nuclear-grade corrugated pipe expansion joint, which relates to the field of corrugated pipes and comprises a corrugated pipe body. The number of the pipe sleeves is two, and the two pipe sleeves are communicated with the two ends of the corrugated pipe body respectively; the number of the armored rings is two, and the two armored rings are arranged on the outer sides of the corresponding pipe sleeves in a sleeving mode respectively; the elastic cleaning blocks are arranged on the opposite sides of the two armoring rings in a surrounding and sliding mode, one sides of the elastic cleaning blocks extend into the gap of the corrugated pipe body, when the corrugated pipe body is stressed to deform, after the length is increased, the telescopic pieces stretch between the two armoring rings, after the force action is finished, the corrugated pipe body retracts, and the elastic cleaning blocks are arranged in the gap of the corrugated pipe body. The telescopic piece can contract along with the action of the reset spring and is used for providing elastic buffering under the action of impact force, and meanwhile the elastic recovery capacity of the corrugated pipe body is improved.

Description

Technical Field

[0001] This utility model relates to the field of bellows, and in particular to an integrated protective structure of nuclear-grade bellows expansion joint with shock-resistant corrugated and armored features. Background Technology

[0002] In nuclear-grade piping systems, bellows expansion joints serve as crucial compensating elements, absorbing thermal expansion and contraction, mechanical deformation, and other factors to ensure the safe operation of the piping system. However, the nuclear environment places higher demands on the performance of bellows expansion joints, particularly in terms of impact resistance, high temperature and pressure resistance, and long-term stability.

[0003] Traditional bellows expansion joints are prone to problems such as bellows rupture and instability when exposed to shock waves, which affects the safety and reliability of the pipeline system.

[0004] Therefore, it is necessary to propose an integrated protective structure of nuclear-grade bellows expansion joint with shock-resistant corrugations and armor to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an integrated protective structure for nuclear-grade bellows expansion joints, which is anti-shock corrugated and armored, to solve the problem that traditional bellows expansion joints are prone to bellows rupture and instability when facing shock waves, thus affecting the safety and reliability of the pipeline system.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a nuclear-grade bellows expansion joint shock-resistant corrugated-armored integrated protective structure, comprising:

[0007] Bellows body;

[0008] The tube sleeve is provided in two parts, and the two tube sleeves are respectively connected to both ends of the corrugated pipe body;

[0009] Armored rings, two of which are provided, and the two armored rings are respectively sleeved on the outside of the corresponding tube sleeve;

[0010] Among them, a telescopic component is elastically connected between the two armor rings;

[0011] Two armored rings are slidably arranged around each other on one side, with one side of the elastic cleaning block extending into the gap of the bellows body.

[0012] Preferably, a fixing plate is fixed to the outer side of each of the two armor rings, and a telescopic rod is fixed to the opposite side of each of the two fixing plates;

[0013] A return spring is fitted on the outer side of the telescopic rod.

[0014] Preferably, annular sliding grooves are provided on opposite sides of both armor rings;

[0015] Both ends of the elastic cleaning block are fixed with sliding blocks, and the two sliding blocks are respectively slidably engaged in the corresponding annular sliding grooves.

[0016] Preferably, an elastic plate is fixedly connected to the side of the elastic cleaning block away from the corrugated pipe body.

[0017] Preferably, each of the two sleeves is provided with a flange at one end away from each other, and the flange has a connection hole.

[0018] Preferably, a fixing ring is fixed inside the sleeve, and the fixing ring has inclined grooves at both the top and bottom ends.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] When the bellows body deforms under stress, its length increases, and the telescopic component also stretches between the two armored rings. When the force ends, the bellows body retracts, and the telescopic component also contracts under the action of the return spring. The telescopic component is used to provide elastic buffering under impact force and increase the elastic recovery ability of the bellows body.

[0021] 2. In the actual operation of this utility model, when materials are conveyed inside the corrugated pipe body, the vibration experienced by the corrugated pipe body will be transmitted to the corrugated pipe body and the elastic cleaning block. The shaking action can cause the elastic cleaning block to rotate on the outside of the corrugated pipe body. While the elastic cleaning block rotates, it can clean the gaps in the corrugated pipe body, preventing impurities from accumulating in the gaps and affecting the elastic recovery ability of the corrugated pipe body. The elastic cleaning block extends into the gaps in the corrugated pipe body, and its own elasticity can further improve the elastic recovery ability of the corrugated pipe body.

[0022] 3. The combination of the armor ring and the bellows body, as well as the elastic connection of the expansion joint, significantly improves the impact resistance of the expansion joint and can effectively resist the damage of external impact forces. The integrated connection structure ensures the coordinated deformation of the bellows body and the armor ring under the action of shock waves, thereby improving the overall stability of the expansion joint. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the impact-resistant corrugated-armored integrated protective structure of the nuclear-grade corrugated pipe expansion joint of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of the elastic cleaning block of this utility model.

[0025] Figure 3 This is a schematic diagram of the inclined groove of this utility model.

[0026] In the diagram: 1. Pipe sleeve; 2. Corrugated pipe body; 3. Fixing plate; 4. Telescopic rod; 5. Return spring; 6. Elastic cleaning block; 7. Elastic plate; 8. Annular sliding groove; 9. Flange; 10. Fixing ring; 11. Inclined groove; 12. Connecting hole; 13. Armored ring. Detailed Implementation

[0027] This utility model provides, for example Figures 1-3 The nuclear-grade bellows expansion joint shock-resistant corrugated armored integrated protective structure shown includes:

[0028] The bellows body 2; two sleeves 1 are provided, each connected to one end of the bellows body 2. The bellows body 2 is the core component of the expansion joint, used to absorb the thermal expansion and contraction and mechanical deformation of the pipeline system. It has good elasticity and can adapt to various stress changes in the pipeline system.

[0029] The sleeve 1 is used to connect the piping system and ensure a sealed connection between the corrugated pipe body 2 and the pipe.

[0030] Armor ring 13, there are two armor rings 13, and the two armor rings 13 are respectively sleeved on the outside of the corresponding sleeve 1. The two armor rings 13 are elastically connected by a telescopic component.

[0031] Specifically, a fixing plate 3 is fixed to the outer side of each of the two armor rings 13, and the telescopic component includes a telescopic rod 4, which is fixed between the two fixing plates 3, and a return spring 5 is sleeved on the outer side of the telescopic rod 4.

[0032] When the bellows body 2 is deformed by force, its length increases and the telescopic component will also be stretched between the two armored rings 13. When the force ends, the bellows body 2 retracts, and the telescopic component will also retract under the action of the return spring 5. The telescopic component is used to provide elastic buffering under impact force and increase the elastic recovery ability of the bellows body 2.

[0033] Two armored rings 13 are slidably arranged around each other on one side, with one side of the elastic cleaning block 6 extending into the gap of the bellows body 2. Each of the two armored rings 13 has an annular sliding groove 8 on one side, and each end of the elastic cleaning block 6 is fixed with a sliding block, which slides into the corresponding annular sliding groove 8.

[0034] In the actual operation of this utility model, when materials are conveyed inside the corrugated pipe body 2, the vibration experienced by the corrugated pipe body 2 is transmitted to the corrugated pipe body 2 and the elastic cleaning block 6. The shaking action can cause the elastic cleaning block 6 to rotate on the outside of the corrugated pipe body 2. While the elastic cleaning block 6 is rotating, it can clean the gaps of the corrugated pipe body 2, preventing impurities from accumulating in the gaps and affecting the elastic recovery ability of the corrugated pipe body 2. The elastic cleaning block 6 extends into the gaps of the corrugated pipe body 2, and its own elasticity can further improve the elastic recovery ability of the corrugated pipe body 2.

[0035] An elastic plate 7 is fixedly connected to the side of the elastic cleaning block 6 away from the corrugated pipe body 2.

[0036] The combination of the armor ring 13 and the bellows body 2, as well as the elastic connection of the expansion joint, significantly improves the impact resistance of the expansion joint and can effectively resist the damage of external impact forces. The integrated connection structure ensures the coordinated deformation of the bellows body 2 and the armor ring 13 under the action of shock waves, thereby improving the overall stability of the expansion joint.

[0037] The corrugated pipe body 2 is made of nickel-based alloy, and the sleeve 1 can be made of carbon steel, meeting the stringent requirements of nuclear-grade piping systems for expansion joints, including high temperature and high pressure, corrosion resistance and other properties.

[0038] Both sleeves 1 are provided with flanges 9 at opposite ends, and the flanges 9 have connection holes 12.

[0039] A fixing ring 10 is fixed inside the sleeve 1. The top and bottom ends of the fixing ring 10 are provided with inclined grooves 11. The inclined grooves 11 are used to guide and disperse the impact force of the material conveying in the pipe, and reduce the direct effect of the impact force on the corrugated pipe body 2.

Claims

1. A nuclear-grade bellows expansion joint shockwave-resistant corrugation-armor integrated protection structure, characterized by: include: Bellows body (2); Two sleeves (1) are provided, and the two sleeves (1) are respectively connected to the two ends of the corrugated pipe body (2); Armor ring (13), two armor rings (13) are provided, and the two armor rings (13) are respectively sleeved on the outside of the corresponding sleeve (1); Among them, the two armor rings (13) are elastically connected by a telescopic component; Two armored rings (13) are slidably arranged around each other with elastic cleaning blocks (6) on one side, and one side of the elastic cleaning blocks (6) extends into the gap of the bellows body (2).

2. The nuclear-grade bellows expansion joint shock-resistant corrugated-armored integrated protective structure according to claim 1, characterized in that: Two armor rings (13) are fixed with fixing plates (3) on their outer sides. The telescopic component includes a telescopic rod (4), which is fixed between the two fixing plates (3). A return spring (5) is fitted on the outside of the telescopic rod (4).

3. A shock protection corrugation-armor integrated protection structure for a nuclear-grade bellows expansion joint according to claim 1, characterized in that: An annular sliding groove (8) is provided on one side of each of the two armor rings (13); Both ends of the elastic cleaning block (6) are fixed with sliding blocks, and the two sliding blocks are respectively slidably engaged in the corresponding annular sliding groove (8).

4. A shock protection corrugation-armor integrated protection structure for a nuclear-grade bellows expansion joint according to claim 1, characterized in that: An elastic plate (7) is fixedly connected to the side of the elastic cleaning block (6) away from the corrugated pipe body (2).

5. The nuclear-grade bellows expansion joint shock-resistant corrugated-armored integrated protective structure according to claim 1, characterized in that: Both sleeves (1) are provided with flanges (9) at opposite ends, and the flanges (9) are provided with connection holes (12).

6. A shock protection corrugation-armor integrated protection structure for a nuclear-grade bellows expansion joint according to claim 1, characterized in that: The sleeve (1) has a fixing ring (10) inside, and the top and bottom of the fixing ring (10) are provided with inclined grooves (11).

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