Metal corrugated pipe with large length-diameter ratio

Abstract

The utility model relates to the technical field of metal corrugated pipes, in particular to a metal corrugated pipe with a large length-diameter ratio, which is connected through a flange and a nut, supported through a supporting pipe section, anti-corrosion through an anti-corrosion layer, reinforced through a braid layer and soundproof through a soundproof layer. Damping is conducted through the damping layer, monitoring is conducted through the sealing sensor, and heat preservation is conducted through the heat preservation layer. Comprising a metal corrugated pipe body. The metal corrugated pipe comprises a metal corrugated pipe body and further comprises a flange, a nut, a supporting pipe section, a corrosion-resistant layer, a braid layer, a sound insulation layer, a damping layer, a sealing sensor and a heat preservation layer, the flange is installed on the metal corrugated pipe body, the nut is installed on the flange, the supporting pipe section is installed on the metal corrugated pipe body, the corrosion-resistant layer is installed on the supporting pipe section, and the braid layer is installed on the corrosion-resistant layer. The sound insulation layer is installed on the weaving layer, the damping layer is installed on the sound insulation layer, the sealing sensor is installed on the damping layer, and the heat preservation layer is installed on the sealing sensor.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal bellows, in particular to a large slenderness ratio metal bellows. BACKGROUND

[0002] In the steam pipeline of a thermal power plant, high-temperature and high-pressure steam can cause the pipeline to expand thermally. Large slenderness ratio metal bellows compensators are widely used in main steam pipelines, reheated steam pipelines, etc. to absorb the thermal displacement of the pipeline and ensure the safe and stable operation of the steam pipeline.

[0003] For example, the existing technology represented by application number CN202420543636.X mainly includes a metal bellows body, a first heat insulation layer is provided on the outer surface of the metal bellows body, the first heat insulation layer is fixedly connected to the outer surface of the metal bellows body at multiple positions, and a corrugated portion is formed between the two connection points of the first heat insulation layer. The metal bellows body includes a corrugated bellows section, integral straight pipe sections are fixedly arranged at both ends of the corrugated bellows section, and the outer arc surface of the straight pipe section is fixedly connected to the first heat insulation layer. The utility model sets the first heat insulation layer, the corrugated portion, and the second heat insulation layer. When medium flows through the metal bellows body, the first heat insulation layer and the second heat insulation layer play a heat insulation role. When the corrugated bellows section expands and contracts, the corrugated portion allows the first heat insulation layer to expand and contract accordingly, thereby achieving good heat insulation effect.

[0004] In use, it is found that the existing metal bellows has poor corrosion resistance, resulting in a short service life. Therefore, there is an urgent need for a large slenderness ratio metal bellows. SUMMARY

[0005] To solve the above technical problems, the utility model provides a large slenderness ratio metal bellows connected by a flange and a nut, supported by a support pipe section, corrosion resistant by a corrosion resistant layer, strengthened by a woven layer, soundproofed by a soundproof layer, damped by a damping layer, monitored by a sealing sensor, and heat preserved by a heat preservation layer.

[0006] The utility model discloses a big long diameter ratio metal bellows, including metal bellows body, still including flange, nut, support pipe section, corrosion -resistant layer, braided layer, sound insulation layer, shock attenuation layer, sealed sensor and heat preservation layer, the flange is installed on metal bellows body, the nut is installed on the flange, and the support pipe section is installed on metal bellows body, and the corrosion -resistant layer is installed on the support pipe section, and the braided layer is installed on the corrosion -resistant layer, and the sound insulation layer is installed on the braided layer, and the shock attenuation layer is installed on the sound insulation layer, and the sealed sensor is installed on the shock attenuation layer, and the heat preservation layer is installed on the sealed sensor, the flange and the nut are connected, and the support pipe section supports, and the corrosion -resistant layer is anticorrosive, and the braided layer is strengthened, and the sound insulation layer is sound -insulated, and the shock attenuation layer is damped, and the sealed sensor is monitored, and the heat preservation layer is heat -preserved, the flange and the nut are connected, and the support pipe section supports, and the corrosion -resistant layer is anticorrosive, and the braided layer is strengthened, and the sound insulation layer is sound -insulated, and the shock attenuation layer is damped, and the sealed sensor is monitored, and the heat preservation layer is heat -preserved.

[0007] Preferably, it further includes two groups of flanges, both of which are installed on both side ends of the metal bellows body, and the side end of the flange is provided with a plurality of nuts.

[0008] Preferably, the support pipe section is sleeved on the metal bellows body, and plays a supporting role on the metal bellows body.

[0009] Preferably, the corrosion -resistant layer is sleeved on the support pipe section, and the material of the corrosion -resistant layer is a polytetrafluoroethylene layer.

[0010] Preferably, the braided layer is sleeved on the corrosion -resistant layer.

[0011] Preferably, the sound insulation layer is sleeved on the braided layer, and the material of the sound insulation layer is sound -insulating fiber material.

[0012] Preferably, the shock attenuation layer is sleeved on the sound insulation layer, and the material of the shock attenuation layer is rubber material.

[0013] Preferably, the sealed sensor is sleeved on the shock attenuation layer.

[0014] Preferably, the heat preservation layer is sleeved on the sealed sensor.

[0015] The utility model discloses a big long -short ratio metal bellows, including metal bellows body 01, its characterized in being including flange 02, nut 03, support pipe section 04, corrosion -resistant layer 05, braided layer 06, sound insulation layer 07, shock attenuation layer 08, sealing sensor 09 and heat preservation layer 10, flange 02 installs on metal bellows body 01, nut 03 installs on flange 02, support pipe section 04 installs on metal bellows body 01, corrosion -resistant layer 05 installs on support pipe section 04, braided layer 06 installs on corrosion -resistant layer 05, sound insulation layer 07 installs on braided layer 06, shock attenuation layer 08 installs on sound insulation layer 07, sealing sensor 09 installs on shock attenuation layer 08, heat preservation layer 10 installs on sealing sensor 09. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure axonometric drawing of the utility model;

[0017] Figure 2 It is Figure 1 It is the structure axonometric drawing of the utility model in metal bellows body and flange etc. structure;

[0018] Figure 3 It is Figure 1 It is the enlarged structure axonometric drawing of the utility model in flange and support pipe section etc. structure;

[0019] Figure 4 It is the structure sectional view of the utility model.

[0020] Mark in the drawing: 01, metal bellows body;02, flange;03, nut;04, support pipe section;05, corrosion -resistant layer;06, braided layer;07, sound insulation layer;08, shock attenuation layer;09, sealing sensor;10, heat preservation layer. DETAILED DESCRIPTION

[0021] In order to facilitate understanding the utility model, below will refer to relevant drawings and carry out more comprehensive description to the utility model. The utility model can be realized in many different forms, and is not limited to the embodiment described in this paper. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. EMBODIMENT

[0022] A big long -short ratio metal bellows, including metal bellows body 01;Its characterized in being including flange 02, nut 03, support pipe section 04, corrosion -resistant layer 05, braided layer 06, sound insulation layer 07, shock attenuation layer 08, sealing sensor 09 and heat preservation layer 10, flange 02 installs on metal bellows body 01, nut 03 installs on flange 02, support pipe section 04 installs on metal bellows body 01, corrosion -resistant layer 05 installs on support pipe section 04, braided layer 06 installs on corrosion -resistant layer 05, sound insulation layer 07 installs on braided layer 06, shock attenuation layer 08 installs on sound insulation layer 07, sealing sensor 09 installs on shock attenuation layer 08, heat preservation layer 10 installs on sealing sensor 09;

[0023] The flange 02 and the nut 03 are connected, the support pipe section 04 is supported, the corrosion-resistant layer 05 is corrosion-resistant, the woven layer 06 is reinforced, the sound insulation layer 07 is sound-insulated, the shock absorption layer 08 is shock-absorbed, the sealing sensor 09 is monitored, and the heat preservation layer 10 is heat-preserved;

[0024] It also includes two sets of flanges 02, both of which are installed on both sides of the metal bellows body 01, and the side end of the flange 02 is provided with a plurality of nuts 03;

[0025] The support pipe section 04 is sleeved on the metal bellows body 01;

[0026] The woven layer 06 is sleeved on the corrosion-resistant layer 05;

[0027] The sound insulation layer 07 is sleeved on the woven layer 06, and the material of the sound insulation layer 07 is sound insulation fiber material;

[0028] The shock absorption layer 08 is sleeved on the sound insulation layer 07, and the material of the shock absorption layer 08 is rubber material;

[0029] The sealing sensor 09 is sleeved on the shock absorption layer 08;

[0030] The heat preservation layer 10 is sleeved on the sealing sensor 09;

[0031] The flange 02 and the nut 03 are connected, the support pipe section 04 is supported, the woven layer 06 is reinforced, the sound insulation layer 07 is sound-insulated, the shock absorption layer 08 is shock-absorbed, the sealing sensor 09 is monitored, and the heat preservation layer 10 is heat-preserved;

[0032] The metal bellows is connected through the cooperation of the flange 02 and the nut 03, the support pipe section 04 plays a supporting role for the metal bellows body 01, the woven layer 06 strengthens the strength of the pipeline, the sound insulation layer 07 effectively insulates sound, the shock absorption layer 08 absorbs shock, the sealing sensor 09 monitors the sealing property, and the heat preservation layer 10 plays a heat preservation and insulation role for the pipeline. Embodiment

[0033] As Figures 1 to 4 shown, on the basis of embodiment 1, it also includes a corrosion-resistant layer 05;

[0034] The corrosion-resistant layer 05 is sleeved on the support pipe section 04, and the material of the corrosion-resistant layer 05 is a polytetrafluoroethylene layer;

[0035] The corrosion-resistant layer 05 is corrosion-resistant;

[0036] The corrosion-resistant layer 05 improves the corrosion resistance.

[0037] The utility model discloses a big long diameter ratio metal bellows, it is connected to metal bellows through flange 02 and nut 03 cooperation when working first, and the metal bellows body 01 is supported through the support pipe section 04, and the corrosion resistance is improved through the corrosion resistance layer 05, and the pipeline strength is strengthened through the braided layer 06, and the sound insulation is effectively carried out through the sound insulation layer 07, and the shock absorption is carried out through the shock absorption layer 08, and the sealing is monitored through the sealing sensor 09, and the pipeline is insulated through the heat preservation layer 10 and plays the role of heat preservation.

[0038] The sealing sensor 09 is purchased on the market, and the technical personnel in the industry only needs to install and operate according to the attached instruction manual, and the technical personnel in the field does not need to pay the creative labor.

[0039] The utility model realizes the main function of anticorrosion to metal bellows.

[0040] The above only is the preferred implementation mode of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, on the premise of not departing from the technical principle of the utility model, a plurality of improvements and variations can be made, and the improvements and variations also should be regarded as the protection range of the utility model.

Claims

1. A large aspect ratio metal bellows comprising a metal bellows body (01); characterized in that, The flange (02) is installed on the metal bellows body (01), the nut (03) is installed on the flange (02), the support pipe section (04) is installed on the metal bellows body (01), the corrosion-resistant layer (05) is installed on the support pipe section (04), the woven layer (06) is installed on the corrosion-resistant layer (05), the sound insulation layer (07) is installed on the woven layer (06), the shock absorption layer (08) is installed on the sound insulation layer (07), the sealing sensor (09) is installed on the shock absorption layer (08), and the heat preservation layer (10) is installed on the sealing sensor (09); The flange (02) and the nut (03) are connected, the support pipe section (04) is supported, the corrosion-resistant layer (05) is corrosion-resistant, the woven layer (06) is reinforced, the sound insulation layer (07) is sound-insulating, the shock absorption layer (08) is shock-absorbing, the sealing sensor (09) is monitored, and the heat preservation layer (10) is heat-preserving.

2. A large aspect ratio metal bellows as claimed in claim 1, wherein, The two groups of flanges (02) are installed on the two side ends of the metal bellows body (01), and the side end of the flange (02) is provided with a plurality of nuts (03).

3. A large aspect ratio metal bellows as claimed in claim 2, wherein, The support pipe section (04) is sleeved on the metal bellows body (01).

4. A large aspect ratio metal bellows as claimed in claim 3, wherein, The corrosion-resistant layer (05) is sleeved on the support pipe section (04), and the material of the corrosion-resistant layer (05) is a polytetrafluoroethylene layer.

5. A large aspect ratio metal bellows as claimed in claim 4, characterised in that, The woven layer (06) is sleeved on the corrosion-resistant layer (05).

6. A large aspect ratio metal bellows as claimed in claim 5, characterised in that, The sound insulation layer (07) is sleeved on the woven layer (06), and the material of the sound insulation layer (07) is a sound insulation fiber material.

7. A large aspect ratio metal bellows as claimed in claim 6, characterised in that, The shock absorption layer (08) is sleeved on the sound insulation layer (07), and the material of the shock absorption layer (08) is a rubber material.

8. A large aspect ratio metal bellows as claimed in claim 7, characterised in that, The sealing sensor (09) is sleeved on the shock absorption layer (08).

9. A large aspect ratio metal bellows as claimed in claim 8, characterised in that, The heat preservation layer (10) is sleeved on the sealing sensor (09).

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