M-shaped sealing ring

Abstract

The utility model relates to the technical field of sealing element equipment, and provides an M-shaped sealing ring which comprises N arc sections and N-1 connecting sections, the arc sections and the connecting sections are sequentially connected end to end, the section of each arc section and the section of each connecting section form an M shape, and the head end and the tail end of each arc section and the corresponding connecting section are further connected with outer wall sections extending outwards after the arc sections and the connecting sections are connected. According to the utility model, the defects in the prior art are overcome, the design is reasonable, the structure is compact, the outer wall section and the M-shaped sealing ring are arranged, and the design of the outer wall section and the M-shaped sealing ring can have certain deformation quantity, so that the strain force is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing equipment, in particular to an M-shaped sealing ring. Background Art

[0002] The turbocharger seals on ships are usually made of stainless steel or other corrosion-resistant metals because they need to withstand high temperature and high pressure working environments in turbocharging. Traditional single-ring or C-shaped seals cannot withstand the overall deformation caused by high temperature and high pressure. In order to better adapt to high temperature and high pressure environments, "M"-shaped seals are generally used. However, during use, the outer side of the seal will be damaged by stress and strain, and improvements are needed on the seal. However, due to the limited space at the seal, how to transfer its stress within the limited space is a technical difficulty that needs to be solved urgently. To this end, we propose an M-shaped seal. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides an M-shaped sealing ring, which overcomes the deficiencies in the prior art, has a reasonable design, a compact structure, and solves the problems raised in the background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] An M-type sealing ring comprises N arc segments and N-1 connecting segments. The arc segments and the connecting segments are connected end to end in sequence and have an "M"-shaped cross section. The connected ends are also connected to an outer wall segment extending outward.

[0008] Preferably, the outer wall segment extends toward the center line of the sealing ring to form an arc surface, and one end of the arc surface is connected to the arc segment, and the other end extends toward the outer ring of the sealing ring.

[0009] Preferably, the length of the outer wall segment is greater than the length of the connection between the arc segment and the connecting segment.

[0010] Preferably, the outer wall section is also connected to a lip surface extending upward, and the outer wall section is circumscribed to the lip surface.

[0011] Preferably, the lip surface includes an extended section in which extended arc sections are connected to each other, the extended arc section extends toward the center line of the sealing ring, and the extended section extends toward the side wall of the connecting section.

[0012] Preferably, the length of the lip extending toward the center line of the sealing ring is not greater than the length of the outer wall section extending toward the center line of the sealing ring.

[0013] Preferably, a gap is left between the side walls of the extension section and the connection section.

[0014] (III) Beneficial effects

[0015] The embodiment of the utility model provides an M-shaped sealing ring. It has the following beneficial effects:

[0016] 1. By providing the outer wall section and the "M"-shaped sealing ring, the design of the outer wall section and the "M"-shaped sealing ring can have a certain amount of deformation, thereby reducing the strain force thereof. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of an embodiment of the utility model.

[0020] In the figure: 1, sealing ring; 2, arc segment; 3, connecting segment; 4, outer wall segment; 5, lip surface; 6, extended arc segment; 7, extended segment. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See attached Figure 1-3 An M-type sealing ring, characterized in that it includes N arc segments 2 and N-1 connecting segments 3, N is not less than three, adjacent N segments are arranged oppositely, the arc segments 2 and connecting segments 3 are connected end to end in sequence and the cross section is formed into an "M" shape, and this "M" shape is intended to improve compressibility. When the ship is started, the sealing ring 1 will have a high temperature and high pressure environment inside the turbocharger, and the sealing ring 1 needs to withstand the strain of extension and compression. The material of the sealing ring is made of high-temperature alloy, preferably high-temperature alloy, and the connected ends are also connected to the outer wall segment 4 extending outward.

[0023] Furthermore, the outer wall section 4 extends toward the center line of the sealing ring 1 to form an arc surface, and one end of the arc surface is connected to the arc segment 2, and the other end extends toward the outer ring of the sealing ring 1. The length of the outer wall section 4 is greater than the length of the connection between the arc segment 2 and the connecting section 3. The arc surface can fit with the inside of the turbocharger to improve the sealing effect of the sealing ring 1, and when the sealing ring is installed on the turbocharger pipe wall, the design of the arc surface can have a certain amount of deformation, which facilitates installation while also allowing it to be adjusted around the pipe wall.

[0024] In this embodiment, the outer wall section 4 is also connected to a lip surface 5 extending upward, the outer wall section 4 is circumscribed with the lip surface 5, and there is a curved surface at the top of the lip surface 5. The lip surface 5 can guide the sealing ring to be accurately installed on the turbocharger pipe wall to ensure that it is aligned in the correct axial direction. During the installation process, the lip surface 5 can reduce the wear between the sealing ring and the pipe wall at the point where the curved surface abuts against the turbocharger pipe wall.

[0025] Furthermore, the lip surface 5 includes an extension section 7 connected to each other by extended arc sections 6, the extended arc sections 6 extend toward the center line of the sealing ring 1, and the extension section 7 extends toward the side wall of the connecting section 3. The length of the lip surface 5 extending toward the center line of the sealing ring 1 is not greater than the length of the outer wall section 4 extending toward the center line of the sealing ring 1. A gap is left between the extension section 7 and the side wall of the connecting section 3. When the sealing ring 1 is subjected to strain force, the sealing ring 1 shrinks inward as a whole. At this time, the extension section 7 abuts against the connecting section 3. The extension section 7 can help guide the strain force from the lip surface 5 to the center of the sealing ring, and together with the pressure dispersion effect on the outer wall section 4, further improve the pressure resistance of the sealing ring. The extension section 7 at the low pressure part of the sealing ring 1 can effectively transfer the pressure at the high pressure part of the sealing ring 1, thereby improving durability.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An M-type sealing ring, characterized in that: It comprises N arc segments (2) and N-1 connecting segments (3), wherein the arc segments (2) and the connecting segments (3) are connected end to end in sequence and have a cross section formed into an "M" shape, and the connected end is also connected to an outer wall segment (4) extending outwards; The outer wall section (4) is also connected to a lip surface (5) extending upward, and the outer wall section (4) and the lip surface (5) are externally tangent; The lip surface (5) comprises an extended section (7) connected to the extended arc sections (6), the extended arc section (6) extending towards the center line of the sealing ring (1), and the extended section (7) extending towards the side wall of the connecting section (3).

2. An M-shaped sealing ring as claimed in claim 1, characterized in that: The outer wall section (4) extends towards the centre line of the sealing ring (1) to form an arc surface, one end of the arc surface is connected to the circular arc section (2), and the other end extends towards the outer ring of the sealing ring (1).

3. An M-shaped sealing ring as claimed in claim 2, characterized in that: The length of the outer wall section (4) is greater than the length of the connection between the circular arc section (2) and the connecting section (3).

4. An M-shaped sealing ring as claimed in claim 1, characterized in that: The length of the lip surface (5) extending towards the center line of the sealing ring (1) is no greater than the length of the outer wall section (4) extending towards the center line of the sealing ring (1).

5. An M-shaped sealing ring as claimed in claim 1, characterized in that: A gap is left between the extension section (7) and the side wall of the connecting section (3).

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