A pressure pipe heat preservation structure

Abstract

The utility model discloses a kind of pressure pipeline heat preservation structures, belong to pipeline accessory technical field, to solve the problem of existing heat preservation structure under vibration condition easy to loosen, poor stability. The structure includes heat preservation assembly, compression assembly and buffer assembly;Compression assembly includes the first fixed ring and the second fixed ring by the rotation connection of pivot, further include the screw and knob for locking;Buffer assembly includes the connecting plate fixed in the end of first fixed ring and the damper installed on connecting plate. Screw is connected to the end of second fixed ring, and in turn through damper and connecting plate, the end of screw is connected with knob screw, and knob is abutted on the outer surface of damper. The utility model is by buffer assembly setting in the force transmission path of locking mechanism, realizes the double function of overload buffering and shock absorption, solves the problem that traditional structure is easy to loosen under vibration, with the advantages of convenient installation, clamping reliable, high stability.

Description

Technical Field

[0001] This utility model relates to the field of pipe fittings technology, and in particular to a pressure pipe insulation structure. Background Technology

[0002] In industries such as petroleum, chemical, and heating, pipelines are crucial carriers of materials or energy. To reduce heat loss, maintain medium temperature, or prevent condensation and scalding on pipeline surfaces, insulation is typically required. A common practice is to wrap the outer surface of the pipeline with a layer of insulation material, such as rock wool or glass wool.

[0003] To securely fasten these loose insulation materials to the pipe surface, external fastening structures are required. Currently, the most widely used method is to use sheet metal strapping or wire for binding. Installers wrap the strapping or wire around the outside of the insulation material and then use specialized tools to tighten and lock it in place.

[0004] However, the inherent drawbacks of this traditional fastening method have become increasingly apparent when applied to pressure pipelines. Pressure pipelines are typically connected to power equipment such as pumps and compressors, and may experience continuous or intermittent mechanical vibrations due to high-speed fluid flow, valve opening and closing, and other operating conditions.

[0005] Traditional strapping or wire is a rigid connection and lacks the ability to absorb and buffer vibration energy. Under long-term vibration, the rigid binding structure and the insulation layer will experience slight displacement and friction, causing the connection points to gradually loosen and the clamping force to decrease. Once the clamping force weakens, gaps will appear between the insulation material and the pipe surface, forming a "thermal bridge," which seriously affects the insulation effect and may even allow moisture to penetrate, causing corrosion of the pipe's outer wall. Therefore, existing rigid binding insulation structures are difficult to maintain stable and reliable insulation performance under long-term vibration conditions.

[0006] Therefore, this utility model proposes a pressure pipeline insulation structure to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a pressure pipeline insulation structure, which aims to improve the problems of cumbersome installation process, uneven clamping force that easily damages the insulation material, and poor stability under pipeline vibration environment of existing pressure pipeline insulation structures.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a pressure pipeline insulation structure, comprising: a pipe body, an insulation component covering the outer surface of the pipe body, and a pressing component surrounding and clamping the insulation component; the pressing component includes a first fixing ring and a second fixing ring rotatably connected by a rotating shaft, and the pressing component also includes a screw and a knob; the pressure pipeline insulation structure also includes a buffer component.

[0009] The buffer assembly includes a connecting plate and a damper mounted on the connecting plate. The connecting plate has a positioning hole and is fixed to the end of the first fixing ring away from the rotating shaft.

[0010] Furthermore, the screw is movably connected to the end of the second fixed ring away from the rotating shaft, and the free end of the screw passes through the damper and the connecting plate in sequence; the knob is threadedly connected to the end of the screw after it passes through the connecting plate, and the knob abuts against the outer surface of the damper.

[0011] Preferably, the insulation component includes, from the inside out, insulation cotton that is tightly attached to the tube body, an elastic pad that covers the outside of the insulation cotton, and a protective layer that covers the outside of the elastic pad.

[0012] Preferably, the pressing assembly further includes a connector, through which the screw is connected to the end of the second retaining ring.

[0013] Preferably, the connector and the end of the second fixing ring are rotatably connected.

[0014] Preferably, the connecting plate is fixed to the end of the first fixing ring by a fastener passing through the positioning hole.

[0015] Preferably, both the first fixing ring and the second fixing ring are arc-shaped plates with a constant curvature along their length.

[0016] Preferably, the elastic pad is a flexible material made of foamed rubber or silicone.

[0017] Preferably, the protective layer is a thin metal sheet or a composite waterproof membrane.

[0018] This utility model has the following beneficial effects: 1. This utility model solves the problems of cumbersome installation and difficult disassembly and maintenance of existing pipe insulation structures by setting a pressing assembly composed of two fixed rings that can open and close around a rotating shaft, and achieves the technical effect of rapid installation, convenient disassembly, and improved construction and maintenance efficiency.

[0019] 2. This utility model solves the problems of uneven clamping force, easy damage to insulation material, and inability to ensure tight fit in traditional binding methods by setting an adjustable locking mechanism with a knob-driven screw and cooperating with the elastic pad in the insulation component. It achieves the technical effect of precise adjustable clamping force, uniform force distribution, and ensuring insulation effect. Attached Figure Description

[0020] Figure 1 This is a perspective view of a pressure pipeline insulation structure proposed in this utility model; Figure 2 This is a schematic diagram of a knob for a pressure pipeline insulation structure proposed in this utility model; Figure 3 This is a schematic diagram of the first fixing ring of a pressure pipeline insulation structure proposed in this utility model; Figure 4 This is a schematic diagram of the protective layer of a pressure pipeline insulation structure proposed in this utility model.

[0021] Legend: 1. Tube body; 2. Pressing assembly; 201. First fixing ring; 202. Second fixing ring; 203. Rotating shaft; 204. Knob; 205. Screw; 206. Connector; 3. Buffer assembly; 301. Connecting plate; 302. Positioning hole; 303. Damper; 4. Thermal insulation assembly; 401. Thermal insulation cotton; 402. Elastic pad; 403. Protective layer. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-4 The present invention provides an embodiment of a pressure pipeline insulation structure, comprising a pipe body 1 as the insulation body and an insulation component 4 covering the outer surface of the pipe body 1, wherein a clamping component 2 and a buffer component 3 for clamping and fixing are provided on the outside of the insulation component 4.

[0024] The insulation component 4 includes, from the inside out, insulation cotton 401 that is tightly attached to the pipe body 1, an elastic pad 402 that covers the outside of the insulation cotton 401, and a protective layer 403 that covers the outside of the elastic pad 402.

[0025] The pressing assembly 2 surrounds and clamps the heat preservation assembly 4. The pressing assembly 2 includes a first fixed ring 201 and a second fixed ring 202 rotatably connected by a rotating shaft 203. The first fixed ring 201 and the second fixed ring 202 are both arc-shaped plates with a constant curvature along their length direction. The two arc-shaped plates are connected by the rotating shaft 203 to form an openable and closable ring clamp.

[0026] As a component of the core locking and buffering mechanism, the buffer assembly 3 includes a connecting plate 301 and a damper 303 mounted on the connecting plate 301. The connecting plate 301 has a positioning hole 302 and is fixed to the end of the first fixed ring 201 away from the rotating shaft 203. The pressing assembly 2 also includes a screw 205 and a knob 204. The screw 205 is movably connected to the end of the second fixed ring 202 away from the rotating shaft 203. The free end of the screw 205 extends out from the end of the second fixed ring 202 and passes through the damper 303 and the connecting plate 301 in sequence. The knob 204 is threaded to the end of the screw 205 after it passes through the connecting plate 301, and the knob 204 abuts against the outer surface of the damper 303. By rotating the knob 204, the screw 205 is driven to move axially, and the tension is transmitted to the connecting plate 301 through the damper 303, thereby tightening the first fixed ring 201 and the second fixed ring 202. Specifically, the connecting plate 301 in the buffer assembly 3 is fixed to the end of the first fixing ring 201 away from the rotating shaft 203 by fasteners passing through the positioning hole 302, and the damper 303 is installed on the side of the connecting plate 301 facing the second fixing ring 202.

[0027] Meanwhile, the screw 205 in the pressing assembly 2 is connected to the end of the second fixing ring 202 away from the rotating shaft 203 via the connector 206, wherein the connector 206 is rotatably connected to the end of the second fixing ring 202 to adapt to the angle change during the clamping process; in the assembled state, after the free end of the screw 205 extends out from the end of the second fixing ring 202, it passes through the central through hole of the damper 303 and the preset through hole of the connecting plate 301 in sequence; finally, the knob 204 is threaded to the end of the screw 205 that extends out of the connecting plate 301, and the inner end face of the knob 204 abuts against the outer surface of the damper 303.

[0028] This structural combination forms a clear force transmission path. When the knob 204 is rotated, the knob 204 pushes the damper 303, which in turn pushes the fixed connecting plate 301. At the same time, the knob 204 pulls the screw 205 through the threaded engagement, and the screw 205 pulls the second fixed ring 202, thereby achieving synchronous tightening of the first fixed ring 201 and the second fixed ring 202. Moreover, the entire locking force is always buffered by the damper 303, ensuring the uniform application of the clamping force and effectively absorbing external vibrations. In a preferred embodiment, the detailed structure of the thermal insulation component 4, from the inside out, includes thermal insulation cotton 401 tightly attached to the pipe body 1, an elastic pad 402 covering the outside of the thermal insulation cotton 401, and a protective layer 403 covering the outermost part of the elastic pad 402. The elastic pad 402 is a flexible body made of foamed rubber or silicone, used to provide flexible cushioning, while the protective layer 403 is a thin metal plate or composite waterproof membrane, used to isolate the influence of the external environment.

[0029] Furthermore, in order to achieve a flexible and reliable connection between the screw 205 and the second fixed ring 202, the pressing assembly 2 also includes a connector 206. The screw 205 is connected to the end of the second fixed ring 202 through the connector 206, and the connector 206 and the end of the second fixed ring 202 are rotatably connected.

[0030] In one specific fixing scheme, the connecting plate 301 in the buffer assembly 3 is fixed to the end of the first fixing ring 201 by a fastener passing through the positioning hole 302, which can be a bolt or a rivet.

[0031] To ensure that the pressing component 2 can apply force evenly when clamped, the first fixing ring 201 and the second fixing ring 202 are both designed as arc plates with a constant curvature along their length direction, ensuring that the two fixing rings can form a regular cylinder after closing, which fits tightly with the outer contour of the insulation component 4.

[0032] Working principle: During installation, the insulation component 4 is first completely wrapped around the outer surface of the pipe body 1, with the insulation cotton 401 tightly attached to the pipe body 1, the elastic pad 402 on the outside, and the protective layer 403 as the outermost layer; then, the pressing component 2 is placed on the outside of the insulation component 4 in the open state, so that the first fixing ring 201 and the second fixing ring 202 rotate around the rotating shaft 203 to close, completing the initial wrapping and fixing.

[0033] When performing the locking operation, rotate the knob 204. Since the knob 204 and the screw 205 are connected by a thread, the knob 204 will move along the axis of the screw 205 towards the connecting plate 301 while rotating. This axial movement produces two effects: first, the end face of the knob 204 directly squeezes the damper 303 and transmits the pressure to the connecting plate 301 fixed on the first fixing ring 201; second, the knob 204 pulls the screw 205 through the thread action, and the screw 205 pulls the second fixing ring 202 through the connector 206, thereby pulling the first fixing ring 201 and the second fixing ring 202 closer and generating a strong clamping force, so that the heat insulation component 4 fits tightly against the pipe body 1.

[0034] During the locking and subsequent operation, the buffer component 3 plays a key role. During the locking stage, the damper 303, as an elastic element, can absorb excessive compressive force and prevent damage to the internal insulation cotton 401 or elastic pad 402 due to improper force applied by the operator. During the equipment operation stage, when the pipe body 1 vibrates due to internal pressure fluctuations or external environment, the damper 303, as a flexible link in the locking force transmission path, can effectively absorb and attenuate vibration energy, avoiding loosening of the screw 205 or structural fatigue caused by long-term vibration under rigid connection, and significantly improving the stability and durability of the entire insulation structure.

Claims

1. A pressure pipeline insulation structure, comprising: tube body(1); Thermal insulation component (4), which covers the outer surface of the tube body (1); The pressing assembly (2) surrounds and clamps the heat insulation assembly (4). The pressing assembly (2) includes a first fixing ring (201) and a second fixing ring (202) rotatably connected by a rotating shaft (203). The pressing assembly (2) also includes a screw (205) and a knob (204). The characteristic feature is that the pressure pipeline insulation structure further includes a buffer component (3); The buffer assembly (3) includes a connecting plate (301) and a damper (303) mounted on the connecting plate (301). The connecting plate (301) has a positioning hole (302) and is fixed to the end of the first fixing ring (201) away from the rotating shaft (203). The screw (205) is movably connected to the end of the second fixed ring (202) away from the rotating shaft (203), and the free end of the screw (205) passes through the damper (303) and the connecting plate (301) in sequence. The knob (204) is threaded to the end of the screw (205) after it passes through the connecting plate (301), and the knob (204) abuts against the outer surface of the damper (303).

2. The pressure pipeline insulation structure according to claim 1, characterized in that, The insulation component (4) includes, from the inside out, insulation cotton (401) that is closely attached to the tube body (1), an elastic pad (402) that covers the outside of the insulation cotton (401), and a protective layer (403) that covers the outside of the elastic pad (402).

3. The pressure pipeline insulation structure according to claim 1, characterized in that, The pressing assembly (2) further includes a connector (206), through which the screw (205) is connected to the end of the second fixing ring (202).

4. The pressure pipeline insulation structure according to claim 3, characterized in that, The connector (206) is rotatably connected to the end of the second fixing ring (202).

5. The pressure pipeline insulation structure according to claim 1, characterized in that, The connecting plate (301) is fixed to the end of the first fixing ring (201) by fasteners passing through the positioning hole (302).

6. The pressure pipeline insulation structure according to claim 1, characterized in that, The first fixing ring (201) and the second fixing ring (202) are both arc-shaped plates with constant curvature along their length direction.

7. The pressure pipeline insulation structure according to claim 2, characterized in that, The elastic pad (402) is a flexible material made of foamed rubber or silicone.

8. The pressure pipeline insulation structure according to claim 2, characterized in that, The protective layer (403) is a thin metal sheet or a composite waterproof membrane.

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