Since entering Chinese market for more than 10 years, products of Wincoo Engineering Co.,ltd has been sold in nearly thirty provinces, cities and autonomous regions in China, and some overseas markets. The company has production line of advanced technology; meanwhile, Wincoo Engineering Co.,ltd designs, develops and processes products for famous domestic installation companies. With professional team, strict management and excellent equipment, the company strives to create the brand of "WINCOO", hydraulic hoist and series supporting products. As an expert of hydraulic hoist, WINCOO with charm of high technology is keen, innovative and forging ahead to establish design language of the company. In an all-inclusive and absorbing and open-minded manner, the hydraulic hoist and hydraulic pump station are perfectly combined to form hydraulic lifting equipment (hydraulic jack). As the founder and disseminator of hydraulic hoist, WINCOO has been building the inverted hydraulic jack and production technology of installation engineering for a long time.We are going to explain how to use the hydraulic jack safely.
●Safe operation code of hydraulic jack
●Precautions for the use of hydraulic jack
●How to repair and maintain hydraulic roof in daily use
1. Hydraulic lifting equipment must be operated by specialized operators;
2. Ground wire must be installed for hydraulic pump station;
3. Check whether motor is rotating in pump indicated direction after startup; motor for this equipment is step-down startup with six second interval. Supply oil for jack after full start of the motor; exhaust air in system via exhaust valve before lifting;
4. Rated pressure for hydraulic system is 25Mpa and pressure indication of pump station pressure gauge cannot exceed 26Mpa;
5. Check clamp block of upper and lower clamps for slip during jack lifting. If block teeth are filled with foreign matters, clean on time and clean the taper sleeve outside block. Grease the taper surface to reduce sliding friction between taper surface and block arc; if teeth shaped surface is severely worn more than 0.4mm, replace block on time. Remove upper and lower clamps and clean after each project. Check wear condition and replace when necessary;
6. Check whether exhaust valve is closed before lifting;
7. Increase pressure slowly during adjustment;
8. System pressure can be at 28Mpa for a short time. Avoid long-term operation for damaging the system;
9. Do not crash high pressure oil pipe with hard objects. Avoid welding slag scorching. Replace high pressure rubber pipe for loss on time;
10. Release the pressure in system via exhaust valve when replacing hydraulic components;
11. Lift jack for a few millimeters when loosening clamp. Unload lower clamp and loosen it;
12. Loosen all lower clamps for butt joint and check; if looseness is inadequate, do not descend jack for opposite joint to avoid lower clamp damage;
13. Adjust pressure precisely when jack is ascending or descending in place. Do not put solenoid valve at neutral position to avoid instantaneous overvoltage;
14. Long-term overload operation is prohibited;
Hydraulic oil level in oil tank should be regularly maintained to normal level. Due to large capacity chamber of piping and hydraulic cylinder, it is mostly required to fill adequate hydraulic oil. After startup, hydraulic oil enters pipeline and cylinder, oil level decreases and filter even shows above oil level. Replenish hydraulic oil once again. It’s inevitable that hydraulic oil has loss during use, therefore, observe oil level regularly and replenish on time to maintain it at the middle position of level meter;
Hydraulic oil shall be kept clean always. Use oil filter vehicle when filling hydraulic oil with filtration precision below 30υm;
Replacing cycle for hydraulic coil is one year for normal operation;
Discharge all residual oil in tank when replacing hydraulic oil and refill after cleaning the tank. Filtration precision of new oil shall not be lower than precision of the system. Oil amount in tank shall be maintained within fixed level range;
Oil temperature shall be appropriate, not more than 60℃. Check for abnormal oil temperature rise. Start hydraulic pump and operate as required after oil temperature reaches 15 ℃ during winter;
Pay attention to the following for initial startup of hydraulic pump:
1) Hydraulic oil level in the tank shall be at the full position of vernier;
2) Check rotation direction of motor and it shall be clockwise seen from motor tail (arrow direction). If the direction id reversed, stop immediately and regain operation after handling;
3) Step up after 10 minutes’ idle operation of pump station;
Pay attention to check return oil filter. Replace cartridge for damage on time;
Before starting and stopping hydraulic pump, unload the overflow valve;
Spares for wear parts (seal ring, clamp block, etc.) shall be available at all times for timely replacement;
Set pressure of overflow valve cannot exceed maximum pressure of hydraulic system;
Check and maintain the jack before operation to ensure there is no oil leakage, clamp and the whole machine is in good condition;
When inserting lifting rod, the jack shall be loosened (loosening nuts at upper and lower clamps are screwed upward in place). Note that lifting rod and jack shall be almost concentric. Reset upper and lower clamps for normal operation and make the jack in operating state;
Prevent mud and sand from entering hydraulic rubber pipes during connection to avoid damaging hydraulic system and the jack;
Overpressure (overload) is prohibited during operation;
Lifting height shall exceed 20-30mm of coaming height and make jack piston at middle position for butt weld;
Make the jack at lifting state when descending the rod and oil pressure cannot be higher than that during lifting, that is to adjust oil pressure below that during normal lifting and then loosen lower clamp. After the jack is back stroke and lifted steel plate falls on newly surrounded plates, the jack bears no load. Loosen upper clamp and lifting rod descends;
According to actual ambient temperature, it is decided to use N46 anti-wear hydraulic oil for the system and mix of other grades is prohibited;
Clean and maintain the jack on time after one project, especially attachment at clamp block teeth. Replace for severe teeth wear and repair the replaced jack.
Time for inspection
Monitor operating status during equipment operation
System pressure is stable and within specified scope.
Noise and vibration
Within 15-60℃, not more than 60℃
Within 105%-85% of rated voltage
For oil leakage of the system
Inspect before startup
Whether at red scale of level meter
Whether overflow valve is loosened
Whether ground wire is installed for pump station
Screw and pipe joints
Regular fastening: once a month
Oil filter and air filter
Regular inspection: once a month
Valve plate of oil tank pipeline
Regular inspection: dismantle, clean and replace sealing during overhaul
Specify as per working conditions and temperature, replace once every 3-4 years generally.
Specify as per working conditions and element quality. Replace for damage on time.
Hydraulic oil pollution test
Test after 1000 hours’ operation of the newly replaced hydraulic oil.
Sample with dedicated container to avoid pollution.
Sample the operating heated oil instead of static oil.
Sample 300-500ml each time.
Test oil plants test report and incorporate the result into equipment record.
Specify inspection cycle as per equipment usage.
High pressure rubber pipe
Specify replacement cycle as per working conditions.
Specify performance inspection of pump, valve, etc. as per working condition.
Hydraulic jacking system as a widely used tank lifting machine, its safety is widely supported and proven.What we said above is more to help you know how to use the hydraulic jack safely and correctly. I hope you found this helpful.
It is not easy to maintain pipe spool fabrication line. Whether it is used in the oil and gas industry, power plants, chemical plants or other infrastructure projects, the pipe spool fabrication line usually contains hundreds of components and thousands of processing steps. Therefore, it is very important to maintain the pipe spool fabrication line.
Here is the content list:
l Line maintenance
l Pipeline repair
l The advantages of choosing WINCOO to repair and maintain the tube shaft production line.
The maintenance of the pipe spool fabrication line includes inspection of pipeline corrosion and anti-corrosion; inspection of pipelines for oil leaks; inspection of valves along the line; inspection of the loss of hydraulic structures and coatings along the line; inspection of signs of damage, etc. Once the pipeline line and equipment are found to be faulty, the pipe spool fabrication line should be repaired or updated in time.
Due to the long line of the pipe spool fabrication line, it may be damaged by man-made and natural disasters at any time. Therefore, it is necessary to conduct line inspection and maintenance of the pipe spool fabrication line frequently. In addition, there is also a dedicated pipeline maintenance team equipped with necessary mobile equipment, earth moving equipment, welding and blocking equipment, and communication tools, so that they can be prepared for emergency repairs at any time.
l Pipe spool fabrication line anti-corrosion inspection
Routine pipe spool fabrication line anti-corrosion inspections include: regularly testing the protection potential along the pipeline; using an anti-corrosion layer detector to check the integrity of the pipe's anti-corrosion layer on the ground. The inspection of corrosion in the old pipeline is a complicated task, and it is usually carried out with a cup-type pipe cleaner with a testing instrument.
The testing equipment of the pipe spool fabrication line includes a magnetic flaw detector to detect internal corrosion and an ultrasonic thickness gauge to detect the thickness of the pipe spool fabrication line. The running distance is calculated by the number of revolutions of the support wheel, and all the tested parameters are converted into signals and recorded on the tape. After the inspection, the tape is interpreted by the computer, which can indicate the corrosion degree and location of the pipeline.
l Pipe spool fabrication line oil leakage inspection
Mainly rely on line inspectors to inspect the pipe spool fabrication line. In order to ensure the safety of residents and enterprises along the route, all countries have formulated oil and gas pipeline safety technical specifications, which are strictly supervised and implemented by government departments. If leakage occurs in the pipe spool fabrication line, report it to the competent authority immediately and check the cause of the accident on site.
Heavy rains and floods will cause soil erosion on the pipe spool fabrication line and damage to the embankment, resulting in exposed, suspended or even broken underwater pipelines. These situations are mainly discovered by line inspectors. Line patrol personnel usually walk on the ground or fly in the air to patrol the line. The maintenance work of the pipe spool fabrication line must be implemented in accordance with the detailed line engineering as-built drawing!
The most prominent part of the maintenance of the pipe spool fabrication line is the handling of large accidents such as leak repair and pipe replacement. If the leak is caused by corrosion and perforation, you can use a fixture to plug the leak on the pipe and then perform repair welding.
If the pipe spool fabrication line is severely damaged or deformed, the pipe must be removed and replaced with a new pipe section. The oil and gas leaked when the pipe is cut off can easily cause a fire. When cutting off the pipeline at low places, it is necessary to prevent a large amount of oil and gas from leaking. Mechanical plugging devices are often used to plug the pipelines, and emergency repair operations are carried out without stopping the transportation.
The mechanical plugging method is to open a hole on the upstream and downstream of the pipe section to be replaced, and insert a plug with a cup into each hole to isolate the oil or gas at both ends, and then drain the oil in the damaged pipe section. Or gas, cut off the pipe section with a mechanical cutter, then insert two pigging balls into the cuts at both ends, and fill the gap between the pigging balls and the plug with nitrogen to prevent explosion during welding.
Put the equipped new pipe spool fabrication line in place, align and weld. After welding, lift the occluder out of the pipe and close the opening to complete the plugging and pipe replacement work. After the pipe spool fabrication line is repaired and operated, two pig balls will be recovered in the pig receiver tube of the downstream station. When plugging and replacing a pipe section, the bypass pipe can be drawn out before plugging to ensure uninterrupted pipe spool fabrication line delivery during the entire pipe replacement process.
The advantages of choosing WINCOO to repair and maintain the tube shaft production line.
Since the pipe spool fabrication line contains thousands of steps, each step is an opportunity for error. Therefore, carefully plan before sending the request for quotation (RFQ) to the manufacturer and proceed during the manufacturing of the pipe spool fabrication line. Careful monitoring and acceleration of the process contribute to successful, timely and profitable results. Adequate planning, preparation and scheduling early in the process is beneficial to project owners, builders and tube and shaft manufacturers!
So choose WINCOO to regularly inspect, maintain and replace the vulnerable parts of the pipe spool fabrication line. We will provide manuals with the machine, such as high-performance pipeline construction equipment, automatic pipeline construction equipment, small pipeline construction equipment, high-precision pipeline construction equipment, Easy to maintain pipeline construction equipment, etc.
WINCOO has professional technical support, we can not only provide online technical support and on-site training support. We will provide appropriate accessories according to the machine, such as CNC vertical storage tank construction solutions, efficient vertical storage tank construction solutions, submerged arc vertical storage tank construction solutions, and electrical vertical storage tank construction solutions. If customers have other parts requirements, we can meet the 1-year quality guarantee. During this period, we will be responsible for any non-human damage, including manuals and accessories!
Edge milling machine is a kind of high speed milling cutter working principle, It is a welding auxiliary equipment for opening weld groove of steel plate before welding.Widely used in boiler, pressure vessel manufacturing industry, shipbuilding, electric power, petroleum, chemical machinery, engineering machinery manufacturing, can process all kinds of medium and low carbon steel plate, stainless steel plate and aluminum plate before welding bevel, straight edge, U bevel, etc.
●Application of edge milling machine
●Compared with the traditional edge milling machine
●The characteristics of the milling machine
Edge milling machine is widely used in boiler, pressure vessel manufacturing industry, shipbuilding, electric power, petroleum, chemical machinery, engineering machinery manufacturing, for all kinds of low carbon steel plate, stainless steel plate and aluminum plate before welding groove processing, bevel, straight edge, U-shaped groove can be a milling molding, compared with the edge planer,It has the advantages of low price, low energy consumption, high efficiency, high finish, easy operation and maintenance, etc.
In new edge milling machine can tear open outfit, and through heat treatment, the bed structure is reasonable, the milling head is more stable and reliable operation, the feed system and return completely independent, fast return, high efficiency, convenient adjustment of the Angle of the milling cutter and custom knife plate and standard knife dish interchangeable, it is the upgrading of the traditional edge milling machine.
As an alternative product of planer, edge milling machine has the advantages of high efficiency, high precision and low energy consumption.It is especially suitable for the groove processing of various shapes of carbon steel plate.Generally 6-80mm thickness, 0-60 degrees of arbitrary adjustment.
Performance of self-propelled edge milling machine:
1, Unique driving walking function
2, Special device stable processing accuracy
3, Special cutting all kinds of metal materials
4, Advanced cutting tools and long-term supply of different blades
The above is a brief introduction of our Wincoo edge milling machine, more models and parameters of the milling machine can be clicked into our website.
Rolling machine is used to roll metal sheet into cylindrical, arc, fan, cone and other workpieces. It is general equipment specially used for bending, forming and correcting metal sheet, pressure vessels and machinery manufacturing industries, has a wide range of applications.
How does a rolling machine work?
What are the classifications of rolling machines?
How to maintain the rolling machine?
The upper roller of the symmetrical rolling machine is at the symmetrical position of the center of the two lower rollers. The hydraulic oil in the hydraulic cylinder acts on the piston to make vertical lifting movement. The plastic metal sheet with flat specification passes between the three work rolls (two lower rolls and one upper roll) of the rolling machine. With the help of the lower pressure of the upper roll and the rotational movement of the lower roll, the metal plate is continuously processed through multiple passes. Bending (the inner layer is compressed and deformed, the middle layer is unchanged, and the outer layer is stretched and deformed), resulting in permanent plastic deformation, and rolled into the required cylinder, cone or part of them.
Rolling machines have different types depending on the field of use. According to the number of rolls, it is divided into three-roller and four-roller. The three-roller is divided into a symmetrical three-roller plate rolling machine, a horizontal-down three-roll plate-rolling machine, an arc-down-type plate-rolling machine, an upper-roll universal three-roll plate rolling machine, and a hydraulic CNC plate rolling machine. From the transmission, it is divided into mechanical type and hydraulic type. In terms of the development of the plate rolling machine, the upper roll universal type is the most backward, the horizontal downward type is slightly advanced, and the arc downward type is the most advanced.
1. According to the regulations in the machine lubrication diagram, add oil to each oil cup lubrication and manual lubrication points as required.
2. Roll the plate according to the parameters specified by the plate rolling machine, the thickness of the plate is 20mm, the maximum length is 2500mm, and the yield limit of the plate material is less than 250Mpa.
3. After the power is turned on, carry out the forward and reverse directions of the lower roller and the lifting and lowering of the upper roller, and check whether there is any abnormal stuck phenomenon in each movement.
4. Operate in strict accordance with the rolling process procedures and operation methods, and pay great attention to the safe operation of the equipment when the upper roller is lifted to the limit position.
5. When the main drive stops, the upper roller can be lifted and lowered, the overturned bearing can be tilted and reset, and the upper roller can be lifted.
Great products begin with the best engineering staff, and WINCOO ENGINEERING CO., LTD is ready to assist you with your technical requirements for rolling machine.