Sealing device with fire resistance and water resistance and production technology thereof

Abstract

The invention relates to a sealing device with fire resistance and water resistance and a production technology thereof. The sealing device comprises an air inlet device and a bag body, wherein a sealed cavity is formed in the bag body; the bag body comprises an alkali-free glass fiber layer, a high-temperature heat-seal layer, a first puncture-resistant enhancement layer, a first puncture-resistant layer, a soft metal layer, a second puncture-resistant layer, a second puncture-resistant enhancement layer and a low-temperature heat-seal layer in sequence; every two adjacent layers are bonded through a cementing layer; the alkali-free glass fiber layer is the outermost layer; and a water-resistant adhesive tape is stuck to the surface of the alkali-free glass fiber layer. The sealing device overcomes defects of a traditional product, and masterly and effectively integrates fire resistance and water resistance through a special technological process, thereby achieving a fire-resistant and water-resistant sealing function in the real sense, breaking through a technical bottleneck on the level of urban underground cable direct-burying sealing, radically solving potential safety hazards that are not solved for years in direct burying of cables, improving the humid operation environment of cables and effectively lowering the system maintenance cost.

Description

technical field [0001] The invention relates to a sealing device with both fireproof and waterproof performance and its production process, which is mainly applicable to the technical field of system pipeline sealing in municipal, electric power, communication and other related fields. Background technique [0002] With the rapid development of global municipal, electric power, and communication, the urban ground space can no longer meet the requirements of modern construction. Various cables are gradually popularized from aerial erection to underground direct burial. The underground water and humid environment seriously affect the Cable operation standards reduce the normal service life of cables, increase the probability of various accident hazards and various operation and maintenance costs. As a result, various plugging products and sealing materials have emerged as the times require. [0003] On the one hand: ordinary fireproof sealing materials, such as cement, pluggi...

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Problems solved by technology

[0003] On the one hand: ordinary fireproof sealing materials, such as cement, plugging king, foam agent, fireproof mud, and caulking agent, although they can solve the problem of fireproof sealing in the short term, their materials are all hard materials, which cannot adapt to the thermal expansion of cables. Due to the natural law of cold shrinkage, cracks gradually appear over time, resulting in poor sealing and potential safety hazards, especially in the face of flood disasters.

[0004] On the other hand, a kind of inflatable sealing material that has emerged in recent years can effectively solve the problem of waterproofing, but the problem of fire prevention has been unresolved. It only stays at the technical level of flame retardancy, or wraps it with simple fireproof materials , can not achieve the real fire prevention effect

[0005] Based on the above, the existing products on the market can no longer meet the urgent needs of urban modernization construction and development

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