Universal straight pipe pressure balance compensator

Abstract

The utility model relates to the technical field of pipeline pressure balance devices, in particular to a universal straight pipe pressure balance compensator which comprises a middle connecting pipe, first corrugated pipes are arranged at the two ends of the middle connecting pipe, a second corrugated pipe is arranged at one end of each first corrugated pipe, and a first fixing frame is arranged at one end of each second corrugated pipe. When the end connecting pipe and the second corrugated pipe are installed, the first sealing rod and the second sealing rod on the sealing assembly abut against the groove and are fixed through the fixing bolts, the first sealing rod and the second sealing rod can be tightly attached to the groove to form a sealing structure, the sealing effect can be enhanced through a first sealing ring on the sealing assembly, and the sealing effect is improved. And the first fixing frame and the second fixing frame on the second corrugated pipe can move along the annular frame, axial displacement, transverse displacement and multi-angle displacement of the pipeline can be absorbed, then the compensation function of the pipeline is achieved, and therefore the practicability of the straight pipe pressure balance compensator is greatly improved.

Description

Technical Field

[0001] The utility model relates to a pressure balancing compensator, in particular to a universal straight pipe pressure balancing compensator, and belongs to the technical field of pipeline pressure balancing devices. Background Art

[0002] The purpose of the utility model is to provide a universal straight pipe pressure balancing compensator. When the end pipe and the second bellows are installed, the first sealing rod and the second sealing rod on the sealing assembly are against the groove and then fixed by fixing bolts, so that the first sealing rod and the second sealing rod can be tightly fitted on the groove to form a sealing structure, and the first sealing ring on the sealing assembly can enhance the sealing effect to prevent leakage of the medium in the pipeline. The first fixing frame and the second fixing frame on the second bellows can move along the annular frame, and can absorb the axial, lateral and multi-angle displacement of the pipeline, thereby realizing the compensation function of the pipeline, thereby greatly improving the practicality of the straight pipe pressure balancing compensator. Utility Model Content

[0003] In order to achieve the above-mentioned purpose, the main technical solutions adopted by this utility model include:

[0004] A universal straight pipe pressure balance compensator, comprising an intermediate pipe, a first bellows welded to both ends of the intermediate pipe, a second bellows provided at one end of the first bellows away from the intermediate pipe, two first fixing brackets fixedly mounted on one end of the second bellows close to the first bellows, two second fixing brackets fixedly mounted on the other end of the second bellows, an annular bracket provided on the two first fixing brackets and the two second fixing brackets, and both the two first fixing brackets and the two second fixing brackets are hingedly connected to the annular bracket via a rotating rod, an end pipe provided on one end of the second bellows away from the first bellows, a groove formed on one end of the end pipe and one end of the second bellows, and a sealing assembly provided on the groove;

[0005] The sealing assembly includes a first sealing rod and a second sealing rod, the first sealing rod and the second sealing rod correspond to the groove, and one end of the first sealing rod is hinged to one end of the second sealing rod through a rotating rod, the other end of the first sealing rod is connected to the other end of the second sealing rod through a fixing bolt, and a first sealing ring is provided on the first sealing rod and the second sealing rod.

[0006] Preferably, a connecting block is provided between the first bellows and the second bellows, and a plurality of evenly distributed stud bolts are provided on the connecting block.

[0007] Preferably, two ends of a plurality of the stud bolts are movable through the first bellows, the second bellows and the connecting block respectively.

[0008] Preferably, connecting pipes are fixedly installed on both sides of the intermediate connecting pipe, and a flange is welded to one end of the connecting pipe away from the intermediate connecting pipe.

[0009] Preferably, a second sealing ring is sleeved on the flange, and a plurality of evenly distributed mounting holes are opened on the flange.

[0010] Preferably, smooth arc-shaped transitions are adopted between the crests and troughs of the first corrugated pipe and the second corrugated pipe, and the number of layers of the first corrugated pipe and the second corrugated pipe are both five.

[0011] The utility model has at least the following beneficial effects:

[0012] 1. When the end pipe and the second bellows of the utility model are installed, the first sealing rod and the second sealing rod on the sealing assembly are against the groove and then fixed by fixing bolts, so that the first sealing rod and the second sealing rod can be tightly fitted on the groove to form a sealing structure, and the first sealing ring on the sealing assembly can enhance the sealing effect and prevent the medium in the pipeline from leaking. The first fixing frame and the second fixing frame on the second bellows can move along the annular frame, and can absorb the axial, lateral and multi-angle displacement of the pipeline, thereby realizing the compensation function of the pipeline, thereby greatly improving the practicality of the straight pipe pressure balance compensator. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0014] Figure 1 A schematic diagram of the overall structure provided by the utility model;

[0015] Figure 2 A schematic diagram of part of the structure provided by the utility model;

[0016] Figure 3 An exploded view of part of the structure provided by the utility model;

[0017] Figure 4 This is a partial structural front view provided by the utility model.

[0018] In the figure, 1. intermediate connecting pipe; 2. first bellows; 3. second bellows; 4. first fixing frame; 5. second fixing frame; 6. annular frame; 7. end connecting pipe; 8. groove; 9. sealing assembly; 901. first sealing rod; 902. second sealing rod; 903. fixing bolt; 904. first sealing ring; 10. connecting block; 11. stud bolt; 12. connecting pipe; 13. flange; 14. second sealing ring; 15. mounting hole. DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] like Figures 1-4 As shown, the universal straight tube pressure balance compensator provided in this embodiment includes an intermediate pipe 1, a first bellows 2 is welded to both ends of the intermediate pipe 1, a second bellows 3 is provided at the end of the first bellows 2 away from the intermediate pipe 1, two first fixing frames 4 are fixedly installed on the end of the second bellows 3 close to the first bellows 2, and two second fixing frames 5 are fixedly installed on the other end of the second bellows 3, an annular frame 6 is provided on the two first fixing frames 4 and the two second fixing frames 5, and the two first fixing frames 4 and the two second fixing frames 5 are hinged to the annular frame 6 through a rotating rod, an end of the second bellows 3 away from the first bellows 2 is provided with an end pipe 7, one end of the end pipe 7 and one end of the second bellows 3 are both provided with a groove 8, and a sealing assembly 9 is provided on the groove 8;

[0021] The sealing assembly 9 includes a first sealing rod 901 and a second sealing rod 902. The first sealing rod 901 and the second sealing rod 902 correspond to the groove 8, and one end of the first sealing rod 901 is hinged to one end of the second sealing rod 902 through a rotating rod, and the other end of the first sealing rod 901 is connected to the other end of the second sealing rod 902 through a fixing bolt 903. The first sealing rod 901 and the second sealing rod 902 are provided with a first sealing ring 904. When the end pipe 7 and the second bellows 3 are installed, the first sealing rod 901 and the second sealing ring 904 on the sealing assembly 9 are hinged to each other. The sealing rod 902 is against the groove 8 and then fixed by the fixing bolt 903, so that the first sealing rod 901 and the second sealing rod 902 can fit tightly on the groove 8 to form a sealing structure, and the first sealing ring 904 on the sealing assembly 9 can enhance the sealing effect and prevent the medium in the pipeline from leaking. The first fixing frame 4 and the second fixing frame 5 on the second bellows 3 can move along the annular frame 6, which can absorb the axial, lateral and multi-angle displacement of the pipeline, thereby realizing the compensation function of the pipeline, thereby greatly improving the practicality of the straight pipe pressure balance compensator.

[0022] Further, such as Figures 1-4As shown, a connecting block 10 is provided between the first bellows 2 and the second bellows 3, and a plurality of evenly distributed stud bolts 11 are provided on the connecting block 10. The two ends of the plurality of stud bolts 11 are movable through the first bellows 2, the second bellows 3 and the connecting block 10 respectively. The first bellows 2 and the second bellows 3 are connected by the connecting block 10 and the plurality of stud bolts 11, which can make the connection between the first bellows 2 and the second bellows 3 firm and reliable, and prevent the two from being separated or misaligned during the operation of the pipeline.

[0023] Further, such as Figures 1-4 As shown, connecting pipes 12 are fixedly installed on both sides of the intermediate connecting pipe 1, and a flange 13 is welded to the end of the connecting pipe 12 away from the intermediate connecting pipe 1. A second sealing ring 14 is sleeved on the flange 13, and a plurality of evenly distributed mounting holes 15 are opened on the flange 13. The flange 13 and the mounting holes 15 can facilitate the connection of the connecting pipe 12 with other components. The second sealing ring 14 can enhance the sealing performance of the flange connection, prevent the medium from leaking from the flange connection, and improve the sealing effect.

[0024] Further, such as Figures 1-4 As shown, a smooth arc-shaped transition is adopted between the crests and troughs of the first bellows 2 and the second bellows 3, and the number of layers of the first bellows 2 and the second bellows 3 are five. During the expansion and contraction deformation process of the first bellows 2 and the second bellows 3, the arc-shaped transition can make the stress distribution more uniform, reduce the stress concentration at the crests and troughs, and thus extend the fatigue life of the bellows.

[0025] like Figures 1-4 As shown, the principle of the universal straight tube pressure balance compensator provided in this embodiment is as follows:

[0026] When the end pipe 7 is installed with the second bellows 3, the first sealing rod 901 and the second sealing rod 902 on the sealing assembly 9 are against the groove 8, and then fixed by the fixing bolt 903, so that the first sealing rod 901 and the second sealing rod 902 can fit tightly on the groove 8 to form a sealing structure, and the first sealing ring 904 on the sealing assembly 9 can enhance the sealing effect and prevent the medium in the pipeline from leaking. The first fixing frame 4 and the second fixing frame 5 on the second bellows 3 can move along the annular frame 6, which can absorb the axial, lateral and multi-angle displacement of the pipeline, thereby realizing the compensation function of the pipeline, thereby greatly improving the practicality of the straight pipe pressure balance compensator.

[0027] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of the components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.

[0028] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0029] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A universal straight pipe pressure balance compensator, comprising an intermediate pipe (1), characterized in that: Both ends of the intermediate pipe (1) are welded with a first bellows (2), an end of the first bellows (2) away from the intermediate pipe (1) is provided with a second bellows (3), an end of the second bellows (3) close to the first bellows (2) is fixedly installed with two first fixing frames (4), and the other end of the second bellows (3) is fixedly installed with two second fixing frames (5), an annular frame (6) is provided on the two first fixing frames (4) and the two second fixing frames (5), and the two first fixing frames (4) and the two second fixing frames (5) are hinged to the annular frame (6) through a rotating rod, an end of the second bellows (3) away from the first bellows (2) is provided with an end pipe (7), one end of the end pipe (7) and one end of the second bellows (3) are both provided with a groove (8), and a sealing component (9) is provided on the groove (8); The sealing assembly (9) includes a first sealing rod (901) and a second sealing rod (902), wherein the first sealing rod (901) and the second sealing rod (902) correspond to the groove (8), and one end of the first sealing rod (901) and one end of the second sealing rod (902) are hingedly connected via a rotating rod, and the other end of the first sealing rod (901) and the other end of the second sealing rod (902) are connected via a fixing bolt (903), and a first sealing ring (904) is provided on the first sealing rod (901) and the second sealing rod (902).

2. The universal straight tube pressure balance compensator according to claim 1, characterized in that: A connecting block (10) is provided between the first bellows (2) and the second bellows (3), and a plurality of evenly distributed stud bolts (11) are provided on the connecting block (10).

3. The universal straight tube pressure balance compensator according to claim 2, characterized in that: Both ends of a plurality of stud bolts (11) are movably inserted through the first bellows (2), the second bellows (3) and the connecting block (10).

4. The universal straight tube pressure balance compensator according to claim 1, characterized in that: Connecting pipes (12) are fixedly mounted on both sides of the intermediate connecting pipe (1), and a flange (13) is welded to one end of the connecting pipe (12) away from the intermediate connecting pipe (1).

5. The universal straight tube pressure balance compensator according to claim 4, characterized in that: A second sealing ring (14) is sleeved on the flange (13), and a plurality of evenly distributed mounting holes (15) are opened on the flange (13).

6. The universal straight tube pressure balance compensator according to claim 1, characterized in that: Smooth arc-shaped transitions are adopted between the crests and troughs of the first bellows (2) and the second bellows (3), and the number of layers of the first bellows (2) and the second bellows (3) are both five.

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