Ceramic sintered pressure containment collar

Abstract

The utility model belongs to the technical field of pipe clamp, and disclose ceramic sintering pressure pipe clamp, including pipe clamp main part, the position fixedly connected with reinforcing clamping assembly has near both ends of the outer wall of pipe clamp main part, reinforcing clamping assembly includes the fixed ring of fixedly connected pipe clamp main part, the side fixedly connected with a plurality of arc clamping pieces that are circumferentially even distribution of fixed ring away from pipe clamp main part, the arc clamping piece thickness gradually increases from the one end near fixed ring to the one end away from fixed ring, the arc clamping piece outside thread connection has the thread fastening ring, and reinforcing clamping assembly is even from the outside and holds tightly pipeline, and the anti -skid grain of cooperation inner wall anti -skid layer constructs " the three -fold stable mechanism of fit - hold tightly - antiskid removes ", in high -pressure, high -frequency vibration scene, can effectively offset the vibration impact, avoid connecting loose, and the connection reliability under the complex working condition is greatly promoted.

Description

Technical Field

[0001] This utility model belongs to the field of pipe clamp technology, specifically ceramic sintered pressure-bearing pipe clamps. Background Technology

[0002] In industrial pipeline systems, pipe clamps are widely used as key components for connecting pipelines and ensuring system sealing and pressure resistance. Ceramic sintered pressure-bearing pipe clamps, due to the wear-resistant, corrosion-resistant, and high-temperature-resistant properties of the ceramic layer, are suitable for pipeline connection needs in complex working conditions such as chemical, metallurgical, and mining industries.

[0003] However, existing ceramic sintered pressure-bearing pipe clamps have many shortcomings: In terms of connection stability, conventional pipe clamps are easily affected by vibration and pressure fluctuations, resulting in loosening and sealing failure, especially in high-pressure and high-frequency vibration scenarios (such as pump outlet pipes), where connection reliability is poor; in terms of sealing performance, traditional sealing structures are difficult to adapt to complex working conditions. Under high temperature, high pressure, or strong corrosive media, leakage is easily caused by thermal expansion and contraction and media erosion, threatening system safety; in terms of thermal stress and structural compatibility, the large difference in thermal expansion coefficients between the ceramic layer and the metal layer, without an effective transition buffer structure, can easily lead to cracking and peeling of the ceramic layer, reducing the service life of the pipe clamp.

[0004] Therefore, ceramic sintered pressure-bearing pipe clamps are proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a ceramic sintered pressure-bearing pipe clamp, which has the advantages of reinforced clamping to ensure stable connection, composite sealing to improve leak prevention performance, and multi-layer structure to adapt to thermal stress.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ceramic sintered pressure-bearing pipe clamp, including a pipe clamp body, wherein a reinforcing clamping component is fixedly connected to the outer wall of the pipe clamp body near both ends;

[0007] The reinforcement clamping assembly includes a fixing ring that is fixedly connected to the main body of the pipe clamp. A plurality of circumferentially evenly distributed arc-shaped clamping pieces are fixedly connected to the side of the fixing ring away from the main body of the pipe clamp. The thickness of the arc-shaped clamping pieces gradually increases from the end near the fixing ring to the end away from the fixing ring. A threaded fastening ring is threadedly connected to the outer side of the arc-shaped clamping pieces.

[0008] Preferably, the main body of the pipe clamp is composed of a ceramic layer, a transition layer, and a metal layer arranged sequentially from the inside to the outside.

[0009] Preferably, stepped sealing grooves are provided at both ends of the inner wall of the pipe clamp body, and composite sealing rings are provided in the stepped sealing grooves.

[0010] Preferably, the composite sealing ring is composed of a sealing outer ring and an embedded inner ring, and an embedding groove is formed on the inner wall of the stepped sealing groove at a position corresponding to the embedded inner ring.

[0011] Preferably, both the inner ring and the groove have trapezoidal cross-sections.

[0012] Preferably, the stepped sealing groove has internal threads engraved on its axial surface.

[0013] Preferably, the inner wall of the arc-shaped clamping piece is provided with an anti-slip layer, and the outer surface of the anti-slip layer is engraved with anti-slip texture.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] 1. The fixing ring of the reinforced clamping assembly of this utility model serves as a basic support and is firmly connected to the pipe clamp body, providing a reliable force point for the arc-shaped clamping piece. The arc-shaped clamping piece is evenly distributed circumferentially, and the thickness gradient design allows it to maintain a certain degree of flexibility near the fixing ring end, which is convenient for initial adaptation to the pipe. The thickened end further away strengthens the rigid clamping force. The threaded fastening ring integrates the force of the dispersed arc-shaped clamping piece through threaded transmission, and evenly clamps the pipe from the outside. Combined with the anti-slip texture of the inner wall anti-slip layer, a triple stabilization mechanism of "fitting-clamping-anti-slip" is constructed. In high-pressure and high-frequency vibration scenarios (such as pump outlet pipes), it can effectively offset vibration impact, avoid connection loosening, and greatly improve the connection reliability under complex working conditions.

[0016] 2. This utility model's stepped sealing groove, through its unique geometric shape, provides multiple sealing interfaces for the composite sealing ring. Compared to traditional single sealing surfaces, it extends the media leakage path and constructs a "maze-like" sealing barrier. The outer sealing ring and the embedded inner ring of the composite sealing ring work together, with the trapezoidal structure of the embedded inner ring precisely matching the embedded groove within the groove, achieving a dual effect of "physical fitting + elastic sealing." In high-temperature, high-pressure, and highly corrosive media environments, regardless of interface micro-changes caused by thermal expansion and contraction or media erosion, the complementary effect of the multi-layer structure can continuously maintain sealing performance, reducing leakage risks at the source and building a solid "protective shield" for the safe operation of the pipeline system.

[0017] 3. The main body of the pipe clamp of this utility model adopts a composite structure of ceramic layer, transition layer and metal layer. The transition layer effectively buffers the thermal expansion difference between ceramic and metal, avoids cracking and peeling of ceramic layer due to stress concentration, and extends the service life of pipe clamp from the material interface level. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the main body of the pipe clamp of this utility model;

[0020] Figure 3 This is a radial cross-sectional view of the main body of the pipe clamp of this utility model;

[0021] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0022] Figure 5 This is a schematic diagram of the circumferential cross-sectional structure of the main body of the pipe clamp of this utility model;

[0023] Figure 6 This is a cross-sectional view of the reinforcing clamping assembly of this utility model.

[0024] In the diagram: 1. Pipe clamp body; 101. Ceramic layer; 102. Transition layer; 103. Metal layer;

[0025] 2. Reinforced clamping assembly; 201. Fixing ring; 202. Arc-shaped clamping piece; 203. Threaded fastening ring;

[0026] 3. Stepped sealing groove;

[0027] 4. Composite sealing ring; 401. Sealing outer ring; 402. Embedded inner ring;

[0028] 5. Embedded groove; 6. Anti-slip layer. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1 to 5 As shown, this utility model provides a ceramic sintered pressure bearing pipe clamp, including a pipe clamp body 1. A reinforcing clamping component 2 is fixedly connected to the outer wall of the pipe clamp body 1 near both ends. The reinforcing clamping component 2 is used to enhance the stability of the connection between the pipe clamp and the pipeline and prevent loosening under high pressure, vibration and other working conditions.

[0031] The reinforced clamping assembly 2 includes a fixing ring 201 that is fixedly connected to the pipe clamp body 1. The fixing ring 201 serves as a basic connection and support, providing a stable force point for the arc-shaped clamping pieces 202. Multiple circumferentially evenly distributed arc-shaped clamping pieces 202 are fixedly connected to the side of the fixing ring 201 away from the pipe clamp body 1. Threaded fastening rings 203 are threadedly connected to the outer side of the arc-shaped clamping pieces 202. The force of the dispersed arc-shaped clamping pieces 202 is integrated through threaded transmission, and the pipe is evenly clamped from the outside, improving the overall clamping effect.

[0032] Specifically, the main body 1 of the pipe clamp is composed of a ceramic layer 101, a transition layer 102, and a metal layer 103 arranged sequentially from the inside to the outside. The ceramic layer 101 is usually made of high-purity alumina, silicon carbide, or other ceramic materials, and forms a dense structure through a high-temperature sintering process. It has the characteristics of high hardness, wear resistance, corrosion resistance, and high temperature resistance, and can effectively resist the scouring, wear, and corrosion of the medium inside the pipe. The transition layer 102 is generally made of nickel-based alloys or other materials and is located between the ceramic layer 101 and the metal layer 103. Its function is to alleviate the stress problem caused by the difference in thermal expansion coefficients between ceramic and metal, enhance the bonding strength between the ceramic layer 101 and the metal layer 103, and ensure the stability of the pipe clamp structure under different temperature environments. The metal layer 103 is mostly made of seamless steel pipe, such as 20# steel or stainless steel, which has good toughness and strength and can withstand the pressure inside the pipe and external mechanical forces, providing overall support and pressure resistance for the pipe clamp, while also facilitating the connection between the pipe clamp and the pipe or other pipe fittings.

[0033] Furthermore, stepped sealing grooves 3 are provided at both ends of the inner wall of the pipe clamp body 1. Through the unique geometric shape, multiple sealing interfaces are provided for the sealing structure, extending the medium leakage path and forming a "maze-like" sealing barrier. A composite sealing ring 4 is provided in the stepped sealing groove 3 to enhance the sealing performance of the pipe clamp and the pipeline connection and prevent medium leakage.

[0034] Furthermore, the composite sealing ring 4 is composed of a sealing outer ring 401 and an embedded inner ring 402. The two work together to improve the sealing reliability. An embedding groove 5 is provided on the inner wall of the stepped sealing groove 3 at the position corresponding to the embedded inner ring 402, which provides installation positioning for the embedded inner ring 402 and enhances the stability of the sealing structure.

[0035] It is worth noting that the cross-sections of the embedded inner ring 402 and the embedded groove 5 are both trapezoidal, which makes the two fit together more tightly and achieves a dual sealing effect of "physical fitting + elastic sealing" to improve sealing performance.

[0036] It is worth noting that the stepped sealing groove 3 has internal threads engraved on its axial surface for threaded connection of pipes.

[0037] It is worth mentioning that the inner wall of the arc-shaped clamping piece 202 is provided with an anti-slip layer 6, which increases the friction between the arc-shaped clamping piece 202 and the pipe. The outer surface of the anti-slip layer 6 is engraved with anti-slip texture, which further enhances the anti-slip effect, prevents relative sliding between the pipe and the pipe clamp, and improves the connection stability.

[0038] Working principle and process: When installing the ceramic sintered pressure-bearing pipe clamp, align the end of the pipe to be connected with the clamp body 1. Utilize the internal thread engraved on the axial surface of the stepped sealing groove 3 to connect with the external thread on the outer wall of the pipe, achieving initial fixation between the clamp and the pipe. Simultaneously, during pipe insertion, its outer wall gradually adheres to the anti-slip layer 6 on the inner wall of the arc-shaped clamping piece 202. Rotating the threaded fastening ring 203 forces the arc-shaped clamping piece 202 to contract inwards through threaded transmission. The rigid clamping force formed by the gradually varying thickness design further tightens the pipe, and the anti-slip texture increases friction. Friction prevents slippage, and the fixing ring 201 provides stable support for the reinforcing clamping assembly 2. At this time, the inner ring 402 of the composite sealing ring 4 is tightly fitted with the trapezoidal structure of the embedded groove 5, and the outer sealing ring 401 is fitted with the stepped sealing groove 3 to form a multi-layer seal. During operation, the ceramic layer 101 directly contacts the medium to resist wear and corrosion, the transition layer 102 relieves the thermal stress between the ceramic and the metal, the metal layer 103 bears the external pressure, and the reinforcing clamping assembly 2 continuously maintains the clamping force. The threaded connection and the multi-layer sealing structure work together to prevent medium leakage and ensure the stable operation of the pipeline system.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ceramic sintered pressure bearing pipe clamp, comprising a clamp body (1), characterized in that: The outer wall of the main body (1) is fixedly connected with a reinforcing clamping assembly (2) near both ends; The reinforced clamping assembly (2) includes a fixing ring (201) that is fixedly connected to the pipe clamp body (1). A plurality of circumferentially evenly distributed arc-shaped clamping pieces (202) are fixedly connected to the side of the fixing ring (201) away from the pipe clamp body (1). The thickness of the arc-shaped clamping pieces (202) gradually increases from the end near the fixing ring (201) to the end away from the fixing ring (201). A threaded fastening ring (203) is threadedly connected to the outer side of the arc-shaped clamping pieces (202).

2. The ceramic sintered pressure-bearing pipe clamp according to claim 1, characterized in that: The main body (1) of the pipe clamp is composed of a ceramic layer (101), a transition layer (102), and a metal layer (103) arranged sequentially from the inside to the outside.

3. The ceramic sintered pressure-bearing pipe clamp according to claim 1, characterized in that: The inner wall of the pipe clamp body (1) is provided with stepped sealing grooves (3) at both ends, and a composite sealing ring (4) is provided in the stepped sealing grooves (3).

4. The ceramic sintered pressure bearing pipe clamp according to claim 3, characterized in that: The composite sealing ring (4) is composed of a sealing outer ring (401) and an embedded inner ring (402). The inner wall of the stepped sealing groove (3) is provided with an embedded groove (5) at the position corresponding to the embedded inner ring (402).

5. The ceramic sintered pressure bearing pipe clamp according to claim 4, characterized in that: The cross-sections of the embedded inner ring (402) and the embedded groove (5) are both trapezoidal.

6. The ceramic sintered pressure bearing pipe clamp according to claim 3, characterized in that: The stepped sealing groove (3) has internal threads engraved on its axial surface.

7. The ceramic sintered pressure bearing pipe clamp according to claim 1, characterized in that: The inner wall of the arc-shaped clamping piece (202) is provided with an anti-slip layer (6), and the outer surface of the anti-slip layer (6) is engraved with anti-slip patterns.

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