About Us

Company Name: Jiangsu Xinjinlei Steel Industry Co., Ltd.

Business Type: Manufacturer

Main Products: Steel Pole , Steel Tubular Tower , Steel Tubular Pole , Substation Structure , Telecommunication Tower , Lighting Pole

Export Percentage: 21% - 30%

Year Established: 2001

NEWS
Technical Requirements for Assembly of Steel Pipe Components Steel tube assembly should be made of special molds, assembled parts as much as possible with the versatility and interchangeability. On the volume of small or complex structure does not have Interchange conditions of the components, the production of good marks left to record for transportation, installation and other damage to the process of re-processing used. The inclination of the flange facing the main axis, the allowable deviation of the displacement of the connecting plate and the allowable deviation of the displacement of the connecting plate shall meet the requirements. Technical requirements for welding of steel rods Steel pipe welding in addition to meet the design drawings and DL / T 646 transmission line steel pipe manufacturing technology requirements, should also meet the following requirements: A) Where automatic submerged arc welding, such as steel pipe longitudinal welds, butt welds, should use automatic submerged arc welding, other welds preferred carbon dioxide gas shielded welding; B) the welding process used in the welding of the chemical composition and mechanical properties must comply with the relevant standards. Welding rod varieties, grades must be welded with the chemical composition of steel and mechanical properties equivalent, and has a good welding process performance; C) Hand-welded weld slag must be knocked clean; D) The welds connected with the steel pipe and the flange shall be welded according to the design requirements, the second grade weld standard shall be required for appearance, and the vertical welds of the ribs and steel pipes shall be welded according to the design requirements; E) The inspection of butt welds shall be carried out in accordance with DL / T 646 Technical Requirements for Steel Pipe Pole of Transmission Lines; F) The longitudinal welds of two adjacent steel pipes should be staggered by 180 degrees; G) The outer dimension of the weld, the internal defect of the welded joint, the local inspection, the quality classification of the steel pipe welding seam, and the effective thickness of the weld of the steel pipe shall meet the technical requirements of DL / T 646 transmission line steel pipe. Test assembly A) steel rod test assembly should be used vertical or horizontal assembly, the preferred vertical assembly. Such as the use of sub-assembly, assembly must ensure that the continuity of the tower test; B) The number of bolts to be connected to each node shall not be less than 75% of the total number of bolts. , And not less than 3; C) vertical assembly process should be measured in the center of the vertical line deviation, the deviation should not be greater than 0.08% H (H: test assembly height); D) test assembly should check the various parts of the connection and to meet the construction plans and DL / T646 transmission line steel pipe manufacturing technology requirements. Galvanized technical requirements A) galvanized technical requirements in the coherent connection points need to open galvanized hole, you can open the main pipe in the galvanized hole, But the location of openings and the size of openings must be agreed with the design unit; B) the amount of hot dip galvanized components and zinc layer uniformity, adhesion, should be consistent with GB2694-2003 Provisions on Technical Conditions for the Manufacture of Transmission Line Towers; C) The thickness, coating appearance and bonding properties of the components shall be in accordance with GB / T 9793, Metallic and other inorganic coatings, thermal spraying of zinc, aluminum and their alloys.

2016-09-29

Traffic Signal Lighting classification and function Traffic lights traffic signals an important part, is the basic language of road traffic. Traffic lights from red (to indicate that traffic), green (represented allows passage), yellow (TableShown warning) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. Traffic lights from red (to indicate that traffic), green (represented allows passage), yellow (warning indicates) components. Divided into: motor vehicle lights, non-motor vehicle lights, crosswalk lights, lane lights, directional lights, flashing warning lights, road and railway level crossing lights. Widely used in highway intersections, corners, bridges, there are security risks of dangerous sections, directing the driver or pedestrian traffic, and promote the smooth flow of traffic and avoid traffic accidents and accidents. Color lights The first time only the red and green colors, and later improved after the increase of a yellow light, red light means stop, yellow indicates ready, a green light indicates traffic. The reason why the use of these three colors, one is the three primary colors, other colors are also out on the basis of increase, on the other hand, with these three colors as traffic signals and also people's visual structure and psychological reaction. Classification Green signal green signal is allowed to pass the signal. Press the "Traffic Safety Law Implementation Regulations" states: green light When light to allow vehicles and pedestrians, but the vehicles are not allowed to interfere with the turning was released straight road Vehicles and pedestrians. Red signal Red signal is absolutely closed to traffic signals. When the red light to vehicular traffic. Without prejudice to the right turn of the vehicle to be released in the case of vehicles and pedestrians can pass. Forbidding signal is a red signal with forced sense, the case of this signal, banned in moving vehicles shall be parked outside of the stop line, pedestrian proscribed lines in the sidewalk waiting to be released; when the vehicle waiting for release, are not allowed to turn off , allowed the car door, all kinds of vehicle driver allowed to leave the vehicle; bicycle carts are not allowed to turn left from the junction outside the bypass, turn right straight allowed to use bypass methods. Yellow signal Yellow light, the vehicle has crossed the stop line can continue to pass. Meaning of yellow signal between the green signal and the red signal, both not to pass side, there are allowed to pass side. Yellow light, warning drivers and pedestrians over time, will soon be converted to a red light, you should stop your car at the back of the line, do not enter the pedestrian crosswalk. But too close to the vehicle as a result of the inconvenience and parking across the stop line, you can remain in use. Pedestrians in the crosswalk has been depending on the case to the car, or as soon as possible by, or standing still, or returned to the original place. Flashing warning lights Persistent blinking yellow light, indicating the vehicle, pay attention to pedestrians when Outlook, confirm safe passage. This lamp does not control the traffic ahead and make the role of the line, some suspended above the intersection, and some traffic lights in the night after the cessation of the use of only one of the yellow plus flash to alert vehicles, pedestrians in front of the intersection, be careful driving, watching carefully, safe passage. Flashing warning lights flashing at intersections, vehicles, pedestrians when, that is, to comply with the principle of ensuring safety, but should not have to comply with traffic signals or traffic signs traffic intersection control provisions. Directional lights Direction command signal is a dedicated vehicle traveling direction indicating lights, through different arrows pointing to indicate the vehicle straight, turn left or right. It consists of red, yellow, green arrow pattern composition. Traffic signal baton Traffic police issued a stop signal rod holding, closed to vehicular traffic. Vehicle has crossed the stop line can pass; when the traffic police issued a straight signals, to allow the vehicle straight and turn right in the vehicle was released without prejudice to vehicle traffic can pass under; when the traffic police issued a left turn signal, left turn vehicle and permit straight passage of the vehicle, the vehicle turn right parties and T-junction to the right of straight bars indicate no vehicle was released without prejudice to the case of vehicle traffic can pass. Driveway lights Lane light by the green arrow lights and red lights fork and set in the variable lane, lane only for the work. When the green arrow lights, Pets direction indicated by the vehicle lane traffic; when the red arrow shaped light or lights, prohibit vehicular traffic lane. Crosswalk signal lights Crosswalk lights from red, green and white lights composition. Red mirror on a stand-up guy image, in the face of a green walking man image. Crosswalk lights located in the pedestrian flow of the intersection crosswalk important ends. Lamp for roadways, and vertical center of the road.

2016-09-26

Lighting Pole Maintenance and Precautions Next to the road which stud the figure is very common, it can be said for the charm of the city adding much luster. but Well-known street, probably because of some reasons not to serve the people, including damage to the lamp, poles broken, how can we ensure that it can be longer for our services? First lighting maintenance personnel have qualification certificates for posts, lampposts maintenance personnel to deal with lampposts lamps light electrical appliances, cables and other equipment to conduct a comprehensive inspection seriously, the use of temporary power line is energized when the power plug repair Medallions connection, for safety reasons, if necessary dissecting loaded shock protector to prevent electric shock. At the same time maintenance staff to deal with the following issues for regular maintenance: 1, replace the damaged light electrical appliances, cables, etc., and check whether all the fixing bolts loose, secure safe and reliable, and automatic positioning pin hook is flexible and reliable, corrosion serious should be replaced. 2, retractable rope in the process, on the other hand wire rope inspection appearance condition, on the other hand pay attention to whether there is overlapping wire rope, strands, rust, broken strands, and severe stress and so on. Check the sliding member is flexible and reliable. 3, the control circuit pole AC contactors, thermal relays, the trip switch, controller and other electrical control command, before the operation should be fully careful examination, found that the problem of electrical components should be replaced as soon as possible, prohibited ill operation . 4, fixed to the bottom pole motor, gearbox and other transmission mechanism, should be closed to cover as much as possible, to prevent the coil from moisture damage the insulation, checking the adequacy of the gear box oil, oil whether black or impurities. Removable motor drive mechanism should be placed in a dry place, shaking table test applications before running the insulation resistance (not less than 1mω) can be used. 5, grounding protection device of high pole lighting, lightning protection devices must be routine inspection per year before the rainy season, for Ground resistance testing, reach grounding resistance (less than 10ω) should be promptly treated. 6, the procedure will have access to detailed records for future reference. After maintenance work is completed, the engineering staff to deal with the electrical part of street lighting facilities, a comprehensive inspection of the lift actuator again, confirm the correct order to be directly linked to rising Medallions unloading date, in order to leave the scene.

2016-09-18

Substation Structure is to contact the user of the intermediate links and transformation and Power plants distribution of electric energy plays a role. Classification of substation the following categories: 1. In accordance with the status and role of substations in the power system can be divided (1) the system hub substation. Hub substation is located in the hub points in the power system, its voltage is the system the highest transmission voltage, the current voltage level has 220kv, 330kV (Northwest power grid only) and 500kv, hub substation connected into the ring, after the station blackout, it will cause the system splitting and even paralysis of the entire system, so the hub substation high reliability requirements of. Hub substation main transformer capacity, wide supply range. (2) regional primary stations. Area substation is located in a hub point area network, is the main network and transmission areas receiving end substation connected, the task is directly affected by the power from the main grid, power supply to this area. Full stop after power failure, which can cause the collapse of the regional power grid, power supply affects the entire region. Voltage level commonly used 220kv or 330kv. A large area substation main transformer capacity, the number of outgoing circuit more, the reliability of the power supply requirements are relatively high. (3) regional secondary substation. Region by the regional primary substation secondary substation by power directly to the load power supply in the region, small power range, the main transformer capacity and the number of units according to the power load may be. After the station blackout, only interrupt the power supply in the region. (4) Terminal Substation. Terminal substation transmission line terminal, close to the load point, the power supply directly to the user via the buck, after station blackout, but the end-user power outages. 2. Divided according to the substation installation location (1) outdoor substation. In addition to the outdoor substation control and DC power supply and other equipment on the indoor and outdoor, transformers, circuit breakers, disconnectors and other major equipment are arranged in the outdoors. This substation construction area of small, low construction cost, high voltage substations generally use outdoor settings. (2) indoor substation. Indoor substation major equipment are on the interior, reducing the total area, but higher construction costs, suitable for densely populated urban areas, or on the coast, Salt Lake, chemical plants and other high air pollution class areas. (3) underground substation. In highly concentrated population and industrial cities, due to urban electricity capacity, built-up, will be provided at the substation underground cities large buildings, roads, parks, and can reduce the area, especially with the development of urban power grids, large hub substation and the substation is located in the city will take more underground substation. This substation majority of unmanned substation. (4) box-type substation. Box-type substation, also known as prefabricated substation is to transformers, high-voltage switchgear, low-voltage electrical equipment and connections and auxiliary equipment is compact combination with each other, according to the different main wiring and components, arranged in a certain way concentrated in one or several closed tank shell. Box-type substation is designed and manufactured by the factory, compact structure, small footprint, high reliability, easy installation, now widely used in residential areas and parks. Box-type substation capacity is not general, voltage level is generally 3kv ~ 35kv, with the improvement and development of the grid required voltage range continues to expand, now it has produced the box-type substation of 132kv. Box-type substation installed in accordance with the different positions can be divided into two types of indoors and outdoors.

2016-09-14

The production process of light pole can be divided into the following steps: (1) cutting → (2) Bending → (3) welding → (4) repair grinding → (5) Plastic → (6) Qi head → (7) mounted floor → (8) welding floor → (9) to open the door → (10) Electric welding gate strip bar (bottom lock → (11) bent fork → (12) galvanized → (13) spray → (14) of the total seizure → (15) delivery Second, each step to French: 1. Cutting 1.1 First cut before cutting adjust the inclination of the machine with the required vertical scissors ruler wanted character. 1.2 will be a good plate placement to ensure that the maximum size of more than expected, so I can use the material. 1.3 length dimension usually guaranteed by the open, wide bottom size requirements ≤ ± 2mm high pole material dimensional tolerance of each section take positive pole bulk of tolerance; general: 0-2m. Head negate tolerance, -2-0mm size adjusted after adjusting the cutting machine, automatic cutting machine to complete. 1.4 equipment: a material should check the rolling shear equipment operation, removing debris on the track, kept in good operating condition of the device. 2. Bend Pole bending is a production of the most critical step, bending will directly affect the quality of the poles and after bending forming beyond repair. Specific attention to the following Before bending 2.1: First remove the sheet metal cutting slag, crushed slag to ensure that no cut when bending mold. Length, width and straightness 2.2 Check sheet metal, non-straightness ≤1 / 1000, if not meet the requirements of straightness, correction, especially polygonal rod must ensure straightness. 2.3 transfer large bending machine bending depth to determine the placement of the sheet. 2.4 correctly a line on the sheet, the error: ≤ ± 1mm. 2.5 on the right line, the right bend, the tube joints to a minimum, while the bottom two high side of not more than 5mm. 3. Welding Welding seam on the tube after bending be straight seam welding. Due to welding is a semi-automatic welding, mainly due more accountability welder, welding should be ready to adjust the welding position, ensure that the weld straightness. 4. Patch polished Is the repair sanding tube automatic welding defect after repair. Repair personnel should check by the root, we found to be defective places up after the completion of welding, then grinding, grinding and automatic welding pick at substantially the same. 5. Shaping Shaping processes include straightening poles and two knockout punch of a full circle and polygon diagonal size, general tolerance: <± 2mm. Preform rod straightness error does not exceed: ≤ ± 1.5 / 1000. 6. Block process Block process is the first step of the tube ends bent Shuhei ensure nozzle perpendicular to the centerline, the angle and height of injustice does not exist, but after Shuhei, were polished end face. 7. Replace the bottom Spot welding the bottom flange and ribs, the key is to ensure that the bottom flange of the lamp straight vertical center line, and the bottom flange vertical ribs, while the bus and light flat straight line. 8. welded bottom flange and ribs Welding requires reference to national standards of welding technology, ensure welding quality welding seam to be beautiful, no pores, slag. 9. open This step in the course of their work must be bold but cautious (1) first to see the drawing to determine the direction of the door, according to the paper size and orientation. Dimensions include: up and down, left and right, and the door frame size, plasma cutting to be cautious and ensure slotted straight line, and cut off the door with the number of poles with welded burning words. 10. Welding door strips, electrical strips, lock seat When welding door door strip 20mm wide strips, extended 8-10mm position down, especially when spot-door bar should be close to the poles, welding to firmly. Electric welding bar and lock seat, mainly in accordance with the drawings set a good location, in the middle of the door lock seat welding, error ≤ ± 2mm, to maintain the level above, no more than the poles. 11. The curved fork Curved fork process and the door has the same nature, should be bold but cautious. First, note the direction of the door

2016-09-12

New Energy Structure include Wind Power and Solar Power. Wind Power principle is converting wind energy into mechanical energy of power machinery, also known as the windmill. Broadly speaking,It is a sun as a heat source to heat the atmosphere by the engine working medium. Wind power is the use of natural energy. Relative to diesel power generation is much better. However, if the emergency to use it, or not as good as diesel generators. Wind power can not be considered as backup power, but long-term use. Wind power is the use of wind driven windmill blades rotate, then the rotational speed increase through the growth machine, prompting generators. According to the current versions of the windmill, which is about three meters per second wind speed (micro-The extent of the wind), it can generate electricity. Wind power is forming a boom in the world, because wind power is no fuel problem, it does not produce radiation or air pollution. Wind power is very popular in Finland, Denmark and other countries; China is also a strong proponent of the western region. High efficiency of small wind power systems, Wind Powers by the head, swivel, tail, leaf composition. Each part is very important for the function of each part: Leaves for receiving through the nose into the wind and kinetic energy; tail blade always facing the direction of the wind for maximum wind; twist to rotate to enable flexible head achieve tail reorientation function; the nose is a permanent magnet rotor, stator windings cutting magnetic field lines generated electricity. Wind Powers due to unstable wind, so its output is AC 25V 13 to change, to go through the rectifier charger, and then the storage battery charged and the power generated by Wind Powers into chemical energy. Then protection circuit inverter power, the battery inside the chemical energy into AC 220V, in order to ensure stable use. Wind energy has a certain kinetic energy by Wind Powers convert wind energy into mechanical energy, dragging generators. wind Principle of power generation is the use of wind driven windmill blades rotate through the growth will increase the speed of rotation of prompting generators. According to the current windmill technology, about 3m / s of wind speed can start to generate electricity. Principle of wind power is the most simple Wind Power blades and the generator can be composed of two parts. Kinetic energy of air flow in the impeller, the kinetic energy is converted into mechanical energy to drive leaves the rotation if the shaft of the impeller shaft and the generator will be connected to electricity to drive the generator issue.

2016-09-09

In recent years, due to the rapid development of urban construction, the rapid increase in electricity load, power supply network can not meet the needs of the development of the electricity load, the city is bound to create a new high-voltage lines, the original city network lines for Rehabilitation. Traditional tower, large area, and the modern urban environment modeling and uncoordinated. Using expensive high-voltage cables, the use of reinforced concrete poles, its longitudinal, circumferential crack problem has been not well resolved. Using circular or polygonal cross-section tapering steel rod type, simple structure, the force is clear, easy manufacturing, construction convenient, safe and reliable operation, less maintenance. Cheng Jiang change - Rotary big to 110 kV Transmission Line in Guangdong Meixian new town planning and urban areas, a total length of 5.96 km, construction difficult, tight schedule requirements. Meizhou Power Supply Bureau in the construction design of the project in order to meet the urban planning, beautify the urban environment, according to the actual situation, this project uses vertically aligned single-loop steel pole, cross arm against the side of the driveway, along with urban planning to spend erection. 1 Transmission Line design ideas Tower design is overhead transmission line project an important part of the design, which directly affects the safe operation of power transmission lines and cost. According to statistics, 37% of the tower cost accounting Get Line Project Cost body. In Transmission Line Project, the share of the total number of straight tower towers generally share reached 80%, the cost of the main project has a great impact, and the longer the line, the effect is more obvious. Accordingly, under the "overhead transmission line steel pole design technology" provides, in ensuring quality, safety applicable premise, should as far as possible the design of technologically advanced, economical and reasonable. The impact of economic indicators tower main elements of meteorological conditions, conditions of use, and tower height of nominal maximum type. Select 2 meteorological conditions Design of meteorological conditions of the project in Guangdong Province typical weather conditions, ie, the maximum wind speed of 25 m / s, the design maximum ice cover is 15 mm, the lowest temperature of -10 ℃, the highest temperature of 40 ℃. 3 steel rod to determine the conditions of use 3.1 wire, grounding wire model and determine the maximum use of stress according to the preliminary design review approval documents, leads this project selected for LGJX-240/30 ACSR (GB1179-83 technical standards), design safety factor k = 5, maximum stress 52.06 N / mm2, lightning-line selection of a 5% aluminum-zinc rare earth alloy coating strand GJX-50, the safety factor k = 8, using the maximum stress 147 N / mm2, the other choice of OPGW fiber composite lightning line. 3.2 determine the span This project is taking into account the urban lines, flat terrain, so that different bits of the column level span, span vertical dispersion is not, and therefore the use of steel rod design span is determined as follows: the horizontal span of 180 m, the vertical span to 200 m, on behalf of span of 200 m. 4 Maximum HEIGHT OK The route along the city planning to set up with flowers, green trees case communication lines and low voltage lines with flowers, and in order to beautiful cities, the largest of nominal high set too small, no doubt will restrict the use of steel rod. However, the maximum HEIGHT set too high, the material will make the index a corresponding increase in the whole tower. After the spreadsheet, the premise does not lead to a single tower base index increased significantly, and the call is called high steel pole as: Strain corner HEIGHT 18 m, straight sections HEIGHT 19 ~ 20 m. In addition, the actual span considered in urban areas, in the case where there are cross-cutting and flat terrain, the maximum call 20 m, said the high use span can reach 200 m, so choose the 20 m as a steel rod maximum HEIGHT It is suitable. 5 Type Selection and Design Optimization 5.1 Electric determine the size Wire vertically arranged, this form of simple structure, small windward side, is a mature structure. Size determination including tower head between the conductor and lightning line lines from lightning line high bracket, wire line distance between wires on the tower's net distance. Determining principle tower head size is to meet clearance requirements to meet the wire, lightning line horizontal displacement, on the lower level of the wire, the vertical distance, lightning protection angle And other requirements, the combination of weather conditions, conditions of use, minimizing application-foot steel pole tower head Transmission Line in the city.

2016-09-07

Power steel rod rust methods are there? Many power rust steel bar method, briefly as follows: where is the power with anti-rust paint steel bar most popular and most commonly used solutions. 1. If the power to change the composition of steel rod metal, increasing copper, chromium or nickel and other alloying elements; 2. The use of metal plating protection, such as electroplating or hot-dip galvanizing and other methods; 3. treatment with chemical oxidation power steel rod protection, such as phosphate treatment, the upcoming steel immersion solution containing hydrogen phosphate, iron phosphate and manganese hydrogen phosphate, the resulting iron phosphate and manganese phosphate insoluble protective film; 4. Non-metallic corrosion protection layer, such as coatings, plastics and other metal surface will power steel rod protected, so that from the media

2015-10-21

How far is the distance between the mountain and the sea? It took more than 30 years to build it The longest span energy transfer project in human history; It took more than 30 years to build it The largest transmission network in the world. West to East power transmission East and West Light up China Mountains and seas are far and wide, and there are stars and rivers on earth. Someone will come across the mountain and across the sea for you.

2022-01-24

How far is the distance between the mountain and the sea? It took more than 30 years to build it The longest span energy transfer project in human history; It took more than 30 years to build it The largest transmission network in the world. West to East power transmission East and West Light up China Mountains and seas are far and wide, and there are stars and rivers on earth. Someone will come across the mountain and across the sea for you.

2022-01-24

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