On August 27-28, the 22nd China Expressway Informatization Conference was held in Chongqing International Exhibition Center. Jingzhou Liangcheng Technology Co., Ltd. (hereinafter referred to as "Liangcheng Technology")'s latest research and development of "self-supporting porous bundle tube", "rectangular porous bundle tube" and "self-supporting silicon core tube" received much attention. The hot products "pre-set optical cable silicon core tube", "tracer silicon core tube", "high ring stiffness silicon core tube" Functional communication pipes such as "aluminum plastic bundle tube" and "flame-retardant silicon core tube" have won the unanimous praise of many domestic and foreign purchasers with superior product performance, affordable price and perfect after-sales service system.

Cooperate with the National New Infrastructure and bring many new products to the exhibition

In 2020, the COVID-19 and the new infrastructure jointly pushed the power storage button for optical communication, and the silicon core tube industry has shown signs of acceleration since then. In order to cooperate with the new infrastructure of the country, Liangcheng Technology has made continuous efforts in the field of optical communication protection pipelines, organized professional technical teams to collect engineering application technical information, conducted targeted research and development, and continuously developed new products such as "self-supporting porous bundle tube", "rectangular porous bundle tube" and "self-supporting silicon core tube", and applied for national utility model patents.

Liangcheng Technology's self-supporting multi-hole bundle tube is a new type of bundle tube suitable for aerial laying. The product specifications include 2 holes, 3 holes, 4 holes, etc., which can also be designed and produced according to customer requirements.

Liangcheng Technology's self-supporting multi-hole bundle tube can better protect the overhead communication optical cable, and can use the micro-optic cable to carry out multi-hole blowing in the overhead laid bundle tube; The optical cable in the bundle tube is not affected by the external environment and load, and has better insulation, anti-static and anti-ultraviolet radiation performance; Reduce the installation cost of optical cable and improve the construction efficiency; Reducing the transmission loss of optical fiber is helpful to improve the transmission quality.

In order to make better use of the laying space and reduce the construction and excavation costs, Liangcheng Technology has developed and designed a rectangular perforated bundle tube. The new product has changed the situation of all round structures of the original perforated bundle tube, forming rectangular, square, polygon and other rectangular structures of the perforated bundle tube; The outer wall is adjusted without changing the microtubule structure and affecting the effect of cable blowing; It can make full use of the limited space and save the construction investment cost.

Liangcheng Technology's functional communication pipeline is popular

Lei Yuande, chairman of Liangcheng Science and Technology, said that the new, practical and cost-effective functional communication pipelines, such as "preset optical cable silicon core tubes", "tracer silicon core tubes", "high ring stiffness silicon core tubes", "aluminum-plastic bundle tubes" and "flame-retardant silicon core tubes", also participated in the high-speed exhibition.

"Preset optical cable silicon core tube" refers to high-density polyethylene built-in optical cable silicon core tube. Also known as "PCD", the abbreviation of Pre-laid Cable Duct in English, refers to the safe and synchronous placement of optical cables into the pipeline through special equipment and devices through reliable technology while producing silicon core tube products, and delivery to customers together.

PCD saves transportation costs, including but not limited to: the cost of shipping optical cables exported from China to the port of destination; The inland transportation costs of optical cable and pipeline in the destination country respectively; At the construction site, the transportation costs of optical cables and pipelines are respectively generated due to the needs of project allocation.

Save the purchase, lease and cable blowing costs of air blowing cables, air compressors, air blowers and other equipment; The cost of personnel and equipment transferring frequently at different construction sites.

Improve the construction efficiency and eliminate the trouble of the effective distance of air blowing cable laying; The treatment of pipe trench is simple, the terrain restriction is resolved, the PCD is put into the pipe trench and directly backfilled, and the pipe laying and cable laying are completed in one step to shorten the construction period.

Almost unlimited route: save the setting and cost of manholes and handholes. According to the length of PCD single disk, it is sufficient to design manholes and handholes at 2KM or 3KM, without setting them every kilometer; The bending, fluctuation and other conditions of the route are no longer sensitive, so it is not necessary to consider the impact of the route direction on the subsequent air blowing.

The quality can be guaranteed, which reduces the optical fiber fusion to a certain extent, reduces the transmission loss caused by it, and helps improve the transmission quality.

Because HDPE silicon core pipe itself is not conductive and magnetic, it is impossible to track the silicon core pipe at the later stage of construction, which brings inconvenience to future maintenance and expansion.

For the convenience of detection, the direction and position of the polyethylene silicon core pipe shall be accurately described. Liangcheng Technology has invented a reliable and technologically mature positioning method for underground network silicon core tubes, which synchronously produces a sheathed copper wire with high conductivity on the outer wall of the entire silicon core tube and provides response marks.

Its principle is to detect and receive the current signal by the corresponding detection instrument through the current pulse induction to determine the direction and position of the metal tracer silicon core tube, and quickly find out the fault point or the track of the laid line.

This product is a tracer silicon core tube, which saves the time and cost of line maintenance and line expansion, facilitates accurate positioning during network operation and maintenance, and effectively avoids pipeline damage or damage to other facilities caused by construction dislocation. The tracer silicon core tube is required to be detected by conventional instruments, and its service life is not less than 50 years.

The flame-retardant silicon core tube is a new type of "environment-friendly flame-retardant silicon core tube" produced by Liangcheng Technology to meet the needs of the market by adding a self-made low-smoke halogen-free flame-retardant masterbatch in the production process of ordinary silicon core tube and adopting a unique production and processing process. It not only has excellent mechanical and physical properties of ordinary silicon core tube, but also has high flame retardancy; When encountering combustion, the halogen acid will not be released, and it will be extinguished immediately after the open fire, which can reduce the emission of a large number of toxic and harmful gases and corrosive gases and the generation of smoke. The insulation resistance changes little after immersion, which has high safety and reliability.

Generally speaking, organic flame retardants have a good affinity and take advantage of their use in plastics. However, there are many "criticisms" on environmental protection issues and it is difficult to replace them with other flame retardant systems. With the increasing awareness of environmental protection, safety and health, countries around the world have begun to focus on the research, development and application of environmentally-friendly flame retardants. Liangcheng Technology has fully considered this factor when choosing to add flame retardants. Therefore, in the development process of flame-retardant silicon core tubes, self-made environmentally-friendly composite flame retardants have been used and achieved good results. At the same time, the enterprise standard "Environmentally friendly composite flame retardant high-density polyethylene silicon core pipe" was formulated and released.

This product is widely used in the cable protection engineering of the national power department in the construction or reconstruction of the original facilities, as well as the cable protection sleeve in the municipal, road and communication engineering with fire and flame retardant requirements.