CN106655068A - Flexible pipeline clogging device - Google Patents

Abstract

A flexible duct sealing device, which includes an inflatable pad that can be wrapped around the cable and inserted into the cable duct together with the cable. The inflatable pad is made of soft alloy and nano-polymer materials. A hollow interlayer-shaped flexible plane inflatable cushion, when the inflatable cushion is wrapped around the cable and inserted into the cable duct, the edge of the one side outside the nozzle is provided with an inflatable tube for insertion and inflation, and contains a self-filling colloidal material Inflatable port; when the inflation pressure reaches 0.035Mpa air pressure, there are waterproof rubber strips on the two sides of the inflatable cushion that can surround and closely fit the cable and the cable duct wall respectively; it has a reasonable structure, Simple, easy to use and reliable, good sealing performance, can well protect the safety of cables and pipelines, and is specially used for sealing the opening of cable pipelines.

Description

A flexible pipe sealing device

technical field

The invention relates to a flexible pipe sealing device, which belongs to the technical field of cable construction safety protection.

Background technique

With the urbanization of the population, the urban ground space can no longer meet the needs of rapid economic development, especially the direct burial of pipelines has become the development trend of power cable laying; it will definitely play a beneficial role in beautifying the urban environment and improving urban functions, and generate Brand-new realistic effect; the pipe network management level of underground pre-buried cable ducts is also a city label reflecting the comprehensive social and economic development level of a city and the development and application level of modern science and technology.

The sealing of cable ducts is very important, because the underground cables are often soaked in rainwater due to inconvenient management, or the cables are bitten off by mice, causing leakage and power outages, which have a great impact; Mud trouble and time, reduce work efficiency.

Due to the need for curing or the rigidity of the product itself, the conventional plugging will not be able to produce effective waterproof effects due to the low-frequency vibration and thermal expansion and contraction of the cable during the operation of the cable. Friction generated by low-frequency vibrations threatens the safety of cables.

The current market products have a single sealing function, and some of them belong to rigid sealing products. After solidification, the low-frequency oscillation generated by the cable operation and the thermal expansion and contraction caused by the cable itself and the external temperature cause gaps in the sealing, which cannot reach the true value. blocking purpose. At present, the plugging products in the market are all temporary plugging needs, and cannot really be used for cable management plugging. In the long run, the disadvantages will be revealed.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a reasonable and simple structure, convenient and reliable use, good sealing performance, which can well protect the safety of cables and pipelines, and is specially used for sealing the opening of cable conduits. Flexible pipe plugging device used.

The purpose of the present invention is achieved through the following technical solutions, a flexible duct sealing device, which includes an air-filled cushion that can be wrapped around the cable and inserted into the cable duct together with the cable, the air-filled cushion It is a hollow interlayer flexible plane inflatable cushion made of soft alloy and nano-polymer materials. When the cable is wrapped and stuffed into the cable duct, the inflatable cushion is provided on the side edge outside the nozzle for inflation. The tube is inserted into an inflation port that is inflated and contains a self-filling gel material.

As a preference: when the inflation pressure reaches 0.035Mpa, the two sides of the inflatable cushion are attached with waterproof adhesive strips that can surround and closely fit the cable and the cable duct wall respectively.

The invention has the characteristics of reasonable and simple structure, convenient and reliable use, good sealing performance, can well protect the safety of cables and pipelines, and is specially used for sealing the opening of cable pipelines.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a schematic diagram of the practical state of the present invention.

detailed description

The present invention will be described in detail below in conjunction with the accompanying drawings: As shown in Figures 1 and 2, a flexible pipe sealing device according to the present invention includes a device that can be wrapped around the outside of the cable 1 and inserted into the cable together with the cable. The air cushion 3 in the cable duct 2, the air cushion 3 is a hollow interlayer flexible plane air cushion made of soft alloy and nano-polymer material, and the air cushion 3 is wrapped around the cable 1 and inserted into the When the cable duct 2 is in the outer side of the nozzle, an inflation port 4 is provided for the insertion of the inflation tube to inflate and contains a self-filling colloidal material. Make a seal.

As shown in the figure, when the inflation pressure reaches 0.035Mpa air pressure, there are waterproof rubber strips 5 that can surround and closely fit the cable and the cable duct wall respectively on the two sides of the air cushion 3, so as to achieve complete water proof.

The invention has the functions of waterproofing, fireproofing, rodent and ant prevention, etc. It is a new type of sealing device designed and developed based on the in-depth analysis and research of traditional sealing products and combined with the current sealing requirements of cables and pipelines. It is used in any pipeline to effectively protect the strategic purpose of the safety of underground pipeline network resources.

The present invention has the following advantages:

1) Easy and fast loading and unloading; 2) The material of the product is stable and does not react with cables and pipes; 3) Oval, deformed and even square pipes can be installed, and the application range is wide; 4) It is suitable for PVC, steel (iron), glass fiber reinforced plastics 5) Can resist harsh environments (chemical corrosion substances such as salt, acid and alkali); 6) The service life is as long as 20 years.

The invention can avoid the adverse effects of accumulated water, silt, rats, etc. on the pipeline environment, and provide a relatively clean construction environment for manual underground operations. After the pipeline is blocked in sections, the problem of pipeline circulation is avoided, the time for pumping and dredging of artificial wells can be minimized, and work efficiency can be improved.

After adopting the new flexible pipeline sealing device, the pipeline can be blocked in all directions to prevent water and sediment from leaking into the manhole, the substation basement or the power receiving room at the user end to cause power supply accidents. It is expected to seal one It can save 20 minutes of time, and can be reused many times at the same time. Compared with the traditional sealing method in the past, it is more cost-effective and can achieve better economic benefits. Because the new sealing device is tightly sealed and durable, the cable protection effect is better and more obvious, and the failure of the protected cable is reduced, which has good social and economic benefits.

Claims (2)

1. A flexible pipe sealing device, which includes an air-filled pad that can be rolled up outside the cable and inserted into the cable duct together with the cable, characterized in that the air-filled pad is made of soft alloy and nano-polymer It is a hollow interlayer flexible plane inflatable cushion made of finely processed materials. When the cable is wrapped and stuffed into the cable duct, the inflatable cushion is provided with an inflatable tube on the side edge outside the nozzle for insertion and inflation, and contains self- Inflatable port filled with gum material. 2. The flexible pipeline sealing device according to claim 1, characterized in that the two sides of the inflatable cushion are attached with a wall that can surround the cable and the cable duct wall in a circumferential direction when the inflation pressure reaches 0.035Mpa. And tightly fitted waterproof strips.