Low-abrasion air bag type pulse damper structure

Abstract

The utility model discloses a low-abrasion air bag type pulse damper structure which comprises a bearing shell, a sealing access cover is arranged at the upper end of the bearing shell in advance, a spring air bag is fixedly installed in the bearing shell, and a butt joint valve port is arranged in the middle of the bottom of the bearing shell in advance. A sealing threaded sleeve is arranged outside the butt joint valve port in advance, a protective valve sleeve is fixedly installed in the middle of the upper end of the sealing access cover, a pressure gauge is fixedly installed at the upper end of the protective valve sleeve, and an inflation associated port is arranged on the side of the protective valve sleeve in advance. And the inflation associated port and the pressure gauge are communicated with the interior of the bearing shell through the protective valve sleeve. According to the utility model, the spring type air bag is adopted inside, so that the contact between the spring type air bag and the inner wall of the shell is reduced in the normal use process, the abrasion generated by the spring type air bag in the long-term use process is further reduced, and the overall service life is favorably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of pulse dampers, in particular to a structure of an airbag type pulse damper with low wear. Background Art

[0002] A pulse damper is a device used to eliminate pressure pulsations in high-pressure oil or gas pipelines and stabilize the pipeline pressure within a certain range. An airbag type pulse damper is a pulse damper that can withstand high pressure.

[0003] However, most of the existing airbag type pulse dampers have the problem that during normal use, due to the high-frequency contraction and expansion of the airbag, if the medium contains small particles, powdery components or paste-like medium, friction will occur between the airbag and the medium, seriously affecting the overall service life. Moreover, most of them are integral structures, and it is difficult to regularly repair the internal airbag during long-term use. The overall comprehensive performance is relatively general, restricting its application prospects, and thus resulting in a narrow overall application range.

[0004] Based on this, the utility model proposes a structure of an airbag type pulse damper with low wear to solve the above problems. Content of the Utility Model

[0005] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part, as well as in the abstract and title of the utility model, to avoid obscuring the purpose of this part, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0006] In view of the above and / or problems existing in the design of the existing pulse dampers, the present utility model is proposed.

[0007] Therefore, one of the purposes of the present utility model is to provide a structure of an airbag type pulse damper with low wear. By adopting a spring type airbag inside, during normal use, the spring type airbag can utilize its own structural characteristics to reduce the contact between itself and the inner wall of the shell while contracting and expanding, thereby reducing the wear of the spring type airbag itself during long-term use, which is beneficial to extending the overall service life. At the same time, the split structure of the damper is provided with a sealed plug-in structure that is mutually adapted and tightly connected at the interface, thus effectively ensuring the assembly tightness of the split structure of the damper.

[0008] To achieve the above effects, the present utility model provides the following technical solutions: A low-wear airbag type pulse damper structure, including a bearing housing, a sealing maintenance cover is preset at the upper end of the bearing housing, a spring airbag is fixedly installed inside the bearing housing, a docking valve port is preset at the middle position of the bottom of the bearing housing, a plugging screw sleeve is preset outside the docking valve port, a protection valve sleeve is fixedly installed at the middle position of the upper end of the sealing maintenance cover, a pressure gauge is fixedly installed at the upper end of the protection valve sleeve, an inflation connection port is preset at the side position of the protection valve sleeve, and both the inflation connection port and the pressure gauge are interconnected with the inside of the bearing housing through the protection valve sleeve.

[0009] As a preferred scheme of the low-wear airbag type pulse damper structure of the present utility model, wherein: The bearing housing is an overall hollow housing structure, and both the bottom of the bearing housing and the top of the sealing maintenance cover adopt arc-shaped structures. At the upper end position of the outside of the bearing housing, positioning fastening blocks are symmetrically fixedly installed at equal intervals in a ring shape. At the lower end position of the outside of the sealing maintenance cover, alignment fastening blocks are symmetrically fixedly installed at equal intervals in a ring shape. The fixed installation positions of the positioning fastening blocks on the outside of the bearing housing correspond and match with the fixed installation positions of the alignment fastening blocks on the outside of the sealing maintenance cover;

[0010] By adopting a split housing with a double-end arc-shaped structure, the overall damper structure is more compact and convenient for disassembly and maintenance, effectively enriching the overall use functionality.

[0011] As a preferred scheme of the low-wear airbag type pulse damper structure of the present utility model, wherein: Fastening threaded holes are opened at the middle positions of the positioning fastening blocks and the alignment fastening blocks. An external threaded fastening bolt is movably installed outside the fastening threaded holes. The fastening bolt passes through the alignment fastening block and is threadedly connected with the positioning fastening block, and the internal thread specification of the fastening threaded hole corresponds and matches with the external thread specification of the fastening bolt;

[0012] By adopting a split structure and being equipped with a threaded fastening connection structure in alignment, it can effectively ensure the docking and assembly use effect of the overall damper, thus facilitating the regular maintenance operation during the long-term use of the whole, being able to timely detect internal potential faults, and being beneficial to extending the overall service life.

[0013] As a preferred scheme of the low-wear airbag type pulse damper structure of the present utility model, wherein: A mushroom valve is movably installed at the bottom position inside the bearing housing. The mushroom valve is sleeved with a sealing ring through the outside of the docking valve port, and the external specification of the sealing ring matches the internal specification of the docking valve port.

[0014] As a preferred embodiment of the low-wear airbag type pulse damper structure of the present utility model, the following is provided: The inside of the spring airbag is interconnected between the top of the sealed maintenance cover and the inflation connection port, and the outer diameter of the spring airbag is smaller than the inner diameter of the bearing housing. An inflation valve is preset outside the inflation connection port;

[0015] By adopting the spring airbag, its own structural characteristics can reduce the contact generated between itself and the inner wall of the housing during contraction and expansion, thereby reducing the wear generated during long-term use operations.

[0016] As a preferred embodiment of the low-wear airbag type pulse damper structure of the present utility model, the following is provided: An annular sealing groove is preset at the upper end of the bearing housing, and a sealing rubber ring is fixedly installed at the bottom of the sealed maintenance cover. The fixed installation position of the sealing rubber ring at the bottom of the sealed maintenance cover corresponds to and coincides with the opening position of the annular sealing groove at the upper end of the bearing housing, and the groove specifications inside the annular sealing groove correspond to and match the outer specifications of the sealing rubber ring;

[0017] By adopting the mutually adapted and inserted structure between the annular sealing groove and the sealing rubber ring, the overall structural sealing performance can be maximally ensured on the basis of the split structure of the damper, ensuring the internal sealed environment and not affecting the overall use effect.

[0018] The beneficial effects of the present utility model: By adopting a split structure, compared with the integral structure of traditional pulse dampers, the present utility model can perform regular disassembly and maintenance operations without affecting the sealing performance of its internal environment, which helps to regularly check for faults in internal components, reduce the occurrence of failures during the working process, and the internal spring-type airbag can, during normal use, utilize its own structural characteristics to reduce the contact between itself and the inner wall of the housing while contracting and expanding, thereby reducing the wear generated by the spring-type airbag itself during long-term use, which is beneficial to extending the overall service life. At the same time, the split structure interface of the damper is provided with a mutually adapted and tightly connected sealing and inserting structure, thereby effectively ensuring the assembly tightness of the split structure of the damper. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0020] Figure 1This is a schematic structural diagram of the perspective view of the split state of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of the perspective view of the split state of the present utility model from the bottom;

[0022] Figure 3 This is a schematic structural diagram of the overall structure of the present utility model;

[0023] Figure 4 This is a schematic structural diagram of the internal structure of the present utility model.

[0024] Reference numerals in the figure: 1, bearing housing; 2, sealed maintenance cover; 3, positioning fastening block; 4, alignment fastening block; 5, docking valve port; 6, fastening threaded hole; 7, annular sealing groove; 8, sealing rubber ring; 9, protective valve sleeve; 10, pressure gauge; 11, inflation connection port; 12, inflation valve; 13, spring airbag; 14, fastening bolt; 15, plugging sleeve; 16, mushroom valve; 17, sealing ring. Detailed implementation manners

[0025] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific implementation manners of the present utility model will be given in conjunction with the schematic diagrams of the specification.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific implementation schemes disclosed below.

[0027] Secondly, the present utility model will be described in detail in combination with the schematic diagrams. When describing the implementation scheme of the present utility model in detail, for the convenience of description, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples, and they should not limit the scope of protection of the present utility model here. In addition, in actual production, the three-dimensional spatial dimensions of length, width and depth should be included.

[0028] Please refer to Figures 1 - 4, the present utility model provides a technical solution: a low-wear airbag type pulse damper structure, including a bearing housing 1, a sealing maintenance cover 2, a positioning fastening block 3, a counterpoint fastening block 4, a docking valve port 5, a fastening threaded hole 6, an annular sealing groove 7, a sealing rubber ring 8, a protection valve sleeve 9, a pressure gauge 10, an inflation connection port 11, an inflation valve 12, a spring airbag 13, a fastening bolt 14, a plugging sleeve 15, a mushroom valve 16 and a sealing ring 17. A sealing maintenance cover 2 is preset at the upper end of the bearing housing 1. A spring airbag 13 is fixedly installed inside the bearing housing 1. A docking valve port 5 is preset at the middle position of the bottom of the bearing housing 1. A plugging sleeve 15 is preset outside the docking valve port 5. A protection valve sleeve 9 is fixedly installed at the middle position of the upper end of the sealing maintenance cover 2. A pressure gauge 10 is fixedly installed at the upper end of the protection valve sleeve 9. An inflation connection port 11 is preset at the side position of the protection valve sleeve 9. Both the inflation connection port 11 and the pressure gauge 10 are communicated with the inside of the bearing housing 1 through the protection valve sleeve 9. The bearing housing 1 is an overall hollow housing structure, and both the bottom of the bearing housing 1 and the top of the sealing maintenance cover 2 adopt an arc structure. Positioning fastening blocks 3 are symmetrically fixedly installed at equal intervals in a ring shape at the upper end position outside the bearing housing 1. Counterpoint fastening blocks 4 are symmetrically fixedly installed at equal intervals in a ring shape at the lower end position outside the sealing maintenance cover 2. The fixed installation positions of the positioning fastening blocks 3 outside the bearing housing 1 correspond and match with the fixed installation positions of the counterpoint fastening blocks 4 outside the sealing maintenance cover 2. Fastening threaded holes 6 are opened at the middle positions of the positioning fastening blocks 3 and the counterpoint fastening blocks 4. A fastening bolt 14 is movably installed outside the fastening threaded hole 6. The fastening bolt 14 passes through the counterpoint fastening block 4 and is threadedly connected with the positioning fastening block 3. And the internal thread specification of the fastening threaded hole 6 corresponds and matches with the external thread specification of the fastening bolt 14. A mushroom valve 16 is movably installed at the bottom position inside the bearing housing 1. A sealing ring 17 is sleeved outside the mushroom valve 16 passing through the docking valve port 5. The external specification of the sealing ring 17 is adapted to the internal specification of the docking valve port 5. The inside of the spring airbag 13 passes through the top of the sealing maintenance cover 2 and is communicated with the inflation connection port 11. And the outer diameter dimension of the spring airbag 13 is smaller than the inner diameter dimension of the bearing housing 1. And an inflation valve 12 is preset outside the inflation connection port 11. An annular sealing groove 7 is preset at the upper end of the bearing housing 1. A sealing rubber ring 8 is fixedly installed at the bottom of the sealing maintenance cover 2. The fixed installation position of the sealing rubber ring 8 at the bottom of the sealing maintenance cover 2 corresponds and matches with the opening position of the annular sealing groove 7 at the upper end of the bearing housing 1. And the groove internal specification of the annular sealing groove 7 corresponds and matches with the external specification of the sealing rubber ring 8;

[0029] By adopting a split shell with a double-ended arc structure, the overall structure of the damper is more compact and easy to disassemble and repair, which effectively enriches the overall functionality. By adopting a split structure and equipping it with a threaded fastening connection structure, the docking and assembly effect of the damper as a whole can be effectively guaranteed, which is convenient for regular maintenance of the whole during long-term use, and can timely check for internal fault hazards, which is beneficial to extending the overall service life. By adopting a spring airbag 13, its own structural characteristics can reduce the contact between itself and the inner wall of the shell during contraction and expansion, thereby reducing the wear caused by long-term use. By adopting the mutually adaptive matching plug-in structure between the annular sealing groove 7 and the sealing rubber ring 8, the overall structural sealing can be guaranteed to the greatest extent on the basis of the split structure of the damper, ensuring an internal sealed environment without affecting the overall use effect.

[0030] Working principle:

[0031] The working principle of the airbag pulse damper is the same as that of the existing airbag pulse damper. Both are pressure vessels used to eliminate liquid pressure pulsation or flow pulsation in pipelines. They are mainly used to stabilize fluid pressure and flow, eliminate pipeline vibration, protect downstream instruments and equipment, and increase the volumetric efficiency of the pump. The load-bearing shell 1 is stably connected to the corresponding pipeline through the docking valve port 5 as a whole, and then the spring airbag 13 is inflated with inert gas through the inflation-related port 11. When the pressure or flow of the liquid in the connected pipeline pulsates, the spring airbag 13 will compress and expand accordingly. The spring-type airbag structure of the spring airbag 13 itself can effectively reduce the spring airbag 13 itself and the inner wall of the load-bearing shell 1 when performing the contraction and expansion operation. The contact effectively reduces the overall wear and tear and effectively extends the overall service life. During long-term use, the fastening bolts 14 can be regularly rotated and disassembled from the fastening threaded holes 6 to make the assembly structure between the sealing inspection cover 2 and the load-bearing shell 1 lose the fastening structure, so that the sealing inspection cover 2 can be disassembled from the outside of the load-bearing shell 1 to achieve the use effect of repairing the internal structure. After the repair work is completed, the sealing inspection cover 2 is stably docked and assembled on the upper end of the load-bearing shell 1. The alignment and adaptation structure between the sealing rubber ring 8 and the annular sealing groove 7 effectively ensures the assembly sealing between the sealing inspection cover 2 and the load-bearing shell 1, prevents the split structure from causing leakage for the damper as a whole, and the scope of application has been greatly expanded and improved.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A low-wear airbag pulse damper structure, comprising a bearing housing (1), characterized in that: A sealing inspection cover (2) is preset at the upper end of the bearing shell (1), a spring airbag (13) is fixedly installed inside the bearing shell (1), a docking valve port (5) is preset at the middle position of the bottom of the bearing shell (1), a sealing screw sleeve (15) is preset outside the docking valve port (5), a protective valve sleeve (9) is fixedly installed at the middle position of the upper end of the sealing inspection cover (2), a pressure gauge (10) is fixedly installed at the upper end of the protective valve sleeve (9), an inflation-related port (11) is preset at the side position of the protective valve sleeve (9), and the inflation-related port (11) and the pressure gauge (10) are both connected to the inside of the bearing shell (1) through the protective valve sleeve (9).

2. The low-wear airbag pulsation damper structure according to claim 1, characterized in that: The bearing shell (1) is a hollow shell structure as a whole, and the bottom of the bearing shell (1) and the top of the sealing inspection cover (2) are both arc-shaped structures. A positioning fastening block (3) is fixedly installed at an upper end position of the outside of the bearing shell (1) at an annular equidistant and symmetrical interval. An alignment fastening block (4) is fixedly installed at a lower end position of the outside of the sealing inspection cover (2) at an annular equidistant and symmetrical interval. The fixed installation position of the positioning fastening block (3) on the outside of the bearing shell (1) and the fixed installation position of the alignment fastening block (4) on the outside of the sealing inspection cover (2) correspond to each other.

3. The low-wear airbag type pulsation damper structure according to claim 2, characterized in that: A fastening threaded hole (6) is provided in the middle of the positioning fastening block (3) and the alignment fastening block (4); a fastening bolt (14) is movably installed outside the fastening threaded hole (6); the fastening bolt (14) passes through the alignment fastening block (4) and the positioning fastening block (3) and is threadedly connected to each other; and the internal thread specifications of the fastening threaded hole (6) correspond to the external thread specifications of the fastening bolt (14).

4. The low-wear airbag pulsation damper structure according to claim 3, characterized in that: A fungus-shaped valve (16) is movably mounted at the bottom of the bearing shell (1), and the fungus-shaped valve (16) is passed through the outer sleeve of the docking valve port (5) and is provided with a sealing ring (17), and the outer specifications of the sealing ring (17) are mutually adapted to the inner specifications of the docking valve port (5).

5. The low-wear airbag type pulsation damper structure according to claim 4, characterized in that: The interior of the spring airbag (13) is connected to the inflation-related port (11) through the top of the sealed inspection cover (2), the outer diameter of the spring airbag (13) is smaller than the inner diameter of the bearing shell (1), and an inflation valve (12) is preset outside the inflation-related port (11).

6. The low-wear airbag type pulsation damper structure according to claim 5, characterized in that: An annular sealing groove (7) is preset at the upper end of the bearing shell (1), and a sealing rubber ring (8) is fixedly installed at the bottom of the sealing inspection cover (2). The fixed installation position of the sealing rubber ring (8) at the bottom of the sealing inspection cover (2) and the opening position of the annular sealing groove (7) at the upper end of the bearing shell (1) correspond to each other, and the internal specifications of the annular sealing groove (7) and the external specifications of the sealing rubber ring (8) correspond to each other.

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