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l Product performance characteristics of tank welding machines.
l Specific structural characteristics of tank welding machines.
l Welding technical characteristics of tank welding machines.
Product performance characteristics of tank welding machines.
EGW vertical gas-electric tank welding machines are highly efficient automatic welding equipment, which can control the improvement of the welding frame according to the current feedback closed loop. In a water-cooled forced welding seam, the main feature of a forming is the thickness from 10mm to 50mm.
Automatic control of the molten pool level of tank welding machines and automatic adjustment of wire drawing length. Small size, light weight welding frame and easy to update flexible modularization, easy to use. Widely used in petroleum, chemical, blast furnace thick plate welding and shipbuilding industries.
Tractor tank welding machines are mobile units that can be easily transported to any workstation and are suitable for fillet and flat seams. The modular design makes it easier to expand the units with additional equipment, namely the flux supply unit and the flux recovery unit. For each tank welding machines welding process, suitable components can be combined in the best way.
Specific structural characteristics of tank welding machines.
The basic structure of the exhaust pipe ring welding machine.The assembly of the automatic welding machine is mainly composed of a pulley guard, a transmission mechanism, an observation window, a platform, a guard, and a rotating clamping mechanism.
ACL-200's small automatic welding machine specifications.Aiming at the diameter of the duct in the aero-engine is usually within φ30mm, a small automatic ring welder with the model ACL-200 produced by the American MK company is selected. Tank welding machines are mainly used for butt welding of stainless steel, carbon steel, aluminum alloy and other pipes, and welding of pipelines and pipe joints. The welding range is the outer diameter of the catheter φ6~φ50mm.
Welding technical characteristics of tank welding machines.
Cleaning and tack welding before tank welding machines. Grind the inner and outer burrs of the tube end to make the tube end flush without burrs, and wipe it clean with alcohol. Manual tungsten argon arc welding is used for positioning.If tank welding machines use inappropriate positions, the position of the welding point will deviate from the neutral line of the welding butt surface.
Because the shape of the girth welding seam is relatively regular, the tack welding point that deviates from the weld cannot be covered by the normal weld, resulting in tack welding The points are on the edge and outside of the weld, making the weld surface poorly formed. If the positioning method is adopted, this kind of situation can be effectively avoided!
We also have many products about Tank welding machine and Pipe spool fabrication solution, welcome to consult us!
In order to give full play to the advantages of pipeline prefabrication equipment and overcome the limitations of fixed pipe spool fabrication line, we have developed a movable pipe spool fabrication line, which has been used in PetroChina, Sinopec, and China National Chemical Corporation. So, what are the precautions for the quality inspection of the pipe spool fabrication line?
Here is the content list:
l About the quality inspection content of the pipe spool fabrication line.
l The product parameter mark on the pipe spool fabrication line.
l How to inspect the pipe spool fabrication line?
The pipe spool fabrication line consists of a work station for pipe beveling, a work station for pipe mechanical assembly, a work station for automatic pipe welding, a steel structure work station frame that can be quickly disassembled, a trolley railing system and a light rail to form a transportation system.
The testing items of the pipe spool fabrication line include: density, melt mass flow rate, hydrostatic pressure, ring stiffness, flatness, ring flexibility, thermal stability, volatile content, moisture content, carbon black content, carbon black dispersion, Pigment dispersion, gas component resistance, rapid crack propagation resistance component analysis, component content detection, etc.
The comprehensive performance of pipe spool fabrication line will reach a high level in China:
1. In the detailed design, China's most advanced "Pipe Manufacturing Design System" software is used to realize the rapid drawing of the pipe spool fabrication line. After the IDF interface module is configured, the design data of the PDS and PDMS design institutes can be directly shared, so a "seamless combination" is realized between design and construction.
2. In the manufacturing management, the domestic first-class "pipe manufacturing and installation management system" software is used to realize all-round information management of the entire pipe spool fabrication line manufacturing process.
3. Pipe spool fabrication line groove adopts a reliable pipeline groove mobile workbench, two of which are used for pipe groove.
4. Roller bed type pipe plasma cutting and beveling machines have been used to cut pipes and form bevels in one step through thermal cutting and processing.
5. An efficient pipe cutting band saw machine and a fixed radial pipe end beveling machine are used to cut the pipe and machine the bevel according to the working procedure.
6. The unique mobile workstation for pipe mechanical assembly in China has been used for weld assembly to mechanically assemble pipe shaft welds.
7. Cover pipe welding adopts advanced automatic pipe welding movable workstation, pipe spool fabrication line automatic welding machine is used to realize efficient automatic cover pipe welding of pipe shaft.
8. The logistics transportation adopts the light rail transportation system, the station frame and the trolley railing system. The light rail transportation system is used for long-distance mechanical logistics transportation, and the station frame is used for transportation. The overhead railing system is used for container internal and external logistics transportation.
9. The pipe spool fabrication line project has a production capacity of 3000 inches/year and a day's production capacity of 1000 inches/day, which meets the huge engineering demand for prefabricated pipelines.
Pipe spool fabrication line has now been widely used in all aspects of people's lives, and unqualified pipes directly affect people's quality of life and health. At the beginning of 2014, some media exposed the problem of individual companies using recycled waste to produce drinking water distribution pipes and fittings, which had a bad social impact. So how to enter the site to inspect the pipe spool fabrication line?
The material, specification, model and quality of the pipe spool fabrication line and pipe fittings should meet the current national product standards and design requirements.The appearance quality of the pipe spool fabrication line should not only meet the requirements of its product standards, but also the following requirements:
l There are no defects on the surface such as cracks, shrinkage holes, slag inclusions, folding, heavy leather, and rust or dents that do not exceed the negative deviation of the wall thickness;
l The thread surface is intact without damage, and the flange sealing surface is flat, smooth, without burrs and radial grooves;
l The gasket has no aging deterioration or delamination phenomenon, and no defects such as wrinkles on the surface.
l Inspection quantity: all inspections. Check the factory inspection report and certificate.
l Inspection method: observe and inspect.
l The size, wall thickness and allowable deviation of the pipe spool fabrication line should meet its product standards and design requirements.
l Inspection Quantity: 20% of the products of each specification and model are randomly checked by the number of pieces, and no less than 1 piece
l Inspection method: measure with steel ruler and vernier caliper.
For the pipe spool fabrication line belonging to one of the following conditions, sampling shall be conducted by the supervision engineer, and the inspection and re-inspection shall be carried out by a qualified inspection unit. The re-inspection results shall meet the current national product standards and design requirements.
What is more? WINCOO provide not only pipeline construction solutions, but also pipe spool fabrication solutions for customers from everywhere!
This paper will mainly introduce the unfixing holding-latch hydraulic jack, Hydraulic jack is one of the key products of WINCOO ENGINEERING CO.,LTD.
Here is the content list:
What is the working principle of unfixing holding-latch hydraulic jack?
What are the characteristics of unfixing holding-latch hydraulic jack?
What are the possible faults and solutions in use?
What is the working principle of unfixing holding-latch hydraulic jack?
Hydraulic lifting device (package unit) is evenly distributed around tank inner wall. Tank top and upper (the first layer) wall plates are lifted first and then install and weld wall plates of tank body. Self locking hydraulic jack and hydraulic hoist composing of lifting frame and lifting rod are adopted. When oil enters hydraulic jack, upper clamp fastens and lifts lifting rod and expansion ring and mobilize tank (including tank top) to ascend upward. When oil returns to jack, upper clamp returns with piston and lower clamp automatically fastens lifting rod without gliding. The jack repeats the movement and make lifting rod ascend with tank to designated height (spare height for next layer of plate). After butt weld of next layer of wall plates, open upper and lower loosening device and loosen upper and lower clamp to make lifting rod and expansion ring descend to lower expanded and welded rib plate of the next layer of wall plates and then lift. Repeat the process and ascend welded tan till the last layer of wall plates are installed and welded. The installation of the whole storage tank is completed.
What are the characteristics of unfixing holding-latch hydraulic jack?
1.Hydraulic lifting is stable, safe and reliable. The system adopts uniform control and single or partial (several) adjustment can be realized, so the lifting process is relatively stable. Characteristics of unfixing jack determine its good self-locking performance, without tank or heavy object gliding or falling due to power outage, which ensures safe and reliable hydraulic lifting.
2.Construction quality is guaranteed. Lifting height can be precisely controlled because of adjustable function (slightly descending). Welding quality if rank is guaranteed for the reasons given above.
3. Equipment is easy for operation with good working environment and efficiency.
4. The equipment has good adaptability. This set of equipment is applicable to hydraulic lifting of large-scale storage tanks with various volumes ranging from tens of thousands of cubic meters only by regulating hydraulic hoist (unfixing jack, hoisting frame, lifting rod, etc.)
5. Hydraulic pump station can be arranged at proper position as per actual working conditions. For large scale storage tanks, hydraulic pump station can be placed inside the tank, outside the tank or space between two tanks (when one pump station controls two tanks installation) for construction control.
6. Hydraulic pump station has manual and automatic controls with apparent features as strong adaptability and good technical performance price ratio.
7.Short construction period, low cost and good economic returns. Due to high modernization of package unit and fast lifting speed, the unit has low construction cost and good economic returns. The techniques has such advantages as easier for centralized control, convenient operation, safety and reliability (no falling), precise control of weld clearance and lifting height, which guarantees project quality, saves labor and reduces cost with remarkable economical benefit.
8.Unfixing jack is widely used in project installation due to its scientific structural design. The jack is composed of upper clamp, oil cylinder, lower clamp and support. Upper and lower clamps are equipped with self locking device. Upper clamp automatically locks lifting rod when oil cylinder ascends and lower clamp automatically loosens. During stroke return, upper clamp loosens and lower clamp locks lifting rod, thus, lifting rod cannot descend and lift heavy object to designated height step by step. The heavier the object is, the tighter the locking device locks. Heavy objects will not fall even during sudden power cut or oil pipe burst. This lifting mode is proven to be safe and efficient with low cost compared with pneumatic jack, big stroke jack and high altitude stranded wire lifting. These modes are not comparable to unfixing jack in terms of safety and practicability and it is the optimal product and installation for substitution. Unfixing jack is rapidly developed and applied in inversed lifting installation of storage tanks, power plant absorption tower and stack steel lining. This jack has slight descending function, which is convenient for plate to plate butt weld. As long as chaining fixing of support and lifting point are sufficient for bearing object load, the jack can lift object to designated place safely and efficiently.
What are the possible faults and solutions in use?
Faults | Possible causes | Solutions |
The jack cannot lift or lifting stroke is inadequate | 1. Lifting rod is partially deformed or inclined | A. Shake or vibrate lifting rod prior to lifting. B. Replace or adjust lifting rod straight |
2. Upper and lower oil path is mistakenly connected | Connect oil path as specified. | |
3. Upper and lower clamp block teeth are severely worn. Clamp block support is damaged or spring fatigued or lost | Replace clamp block, base or spring | |
4. Backspring fractures or severely deforms | Replace backspring | |
5. Insufficient oil supply pressure | Adjust working pressure of oil pump | |
6. Heavy load | Take measures to decrease load or add jack | |
7. Jack piston seal is damaged | Replace damaged seal ring | |
Oil penetration or oil leakage | 1. Seal element is damaged, severely worm or invalid for aging | Replace corresponding seal element. |
2. Cylinder galling | Repair or replace cylinder | |
3. Loose connection or damaged seal element | Fasten connection thread or replace corresponding seal element | |
Oil leakage at quick coupler | Coupler or O-ring damaged | Replace coupler or corresponding O-ring |
Stepping up failure | Reversed rotation of motor | Adjust motor rotation direction |
Solenoid valve fails | Check and replace new solenoid valve | |
Low oil level | Replenish hydraulic oil till surpassing red scale | |
Oil pump severely damaged or worn | Replace oil pump |
Above, we introduced the principle of hydraulic jack, characteristics and possible problems and solutions. I believe you have a more detailed understanding of the hydraulic jack. When hydraulic jack homework need the cooperation of all parts, any accessories problems may make hydraulic jack cannot normal use, therefore, to know hydraulic jack structures not only help us to understand the principle of it, will also help us in a timely manner when it fails to distinguish and confirm fault promptly eliminate, can let hydraulic jack to provides us with better services.
Hydraulic storage tank lifting equipment plays a very important role in handling heavy objects. The lifting effect is very good. It is more suitable for lifting heavy objects with a low height and can undertake a lot of lifting operations.
What are the precautions for hydraulic storage tank lifting equipment?
What should I do if the platform of the hydraulic storage tank lifting equipment lift cannot be lowered?
What is the working process of hydraulic storage tank lifting equipment?
1) If the emptying phenomenon occurs during use, you can first loosen the oil drain screw on the pump body, hit the vertical head of the pump body down a few times, and then tighten the oil drain screw, you can continue to use the hydraulic storage tank lifting equipment.
2) When using, do not add partial load or overload, so as to avoid the danger of hydraulic storage tank lifting equipment damage. When there is a load, do not remove the quick connector to avoid accidents and damage to the parts.
When using hydraulic storage tank lifting equipment lift, sometimes the lifting platform cannot be lowered. The solution to the hydraulic storage tank lifting equipment lift not being lowered depends on the situation:
1. The drop valve fails,
Troubleshooting method: In the case of pressing the down button, check whether the down valve has electricity. If there is no electricity, try to eliminate it; if there is electricity, then eliminate the failure of the down valve itself and replace the drop valve.
2. The deceleration control valve is out of balance
Remedy: Adjust the descending speed control valve, if the adjustment is invalid, you need to replace the new valve.
When the hydraulic storage tank lifting equipment is stretched, the front and rear oil nozzles are opened, and oil is supplied from the rear oil nozzle to the tensioning working oil chamber, and the cylinder body of the tensioning cylinder moves backward. Since the cylinder cable is anchored on the tool anchor at the top of the jack, the hydraulic storage tank lifting equipment stretches the steel cable through the tool. When the wire rope is stretched to the required length, close the rear oil nipple, and feed oil from the front oil nipple into the top pressure cylinder, so that the top pressure cylinder piston moves forward to support the anchor plug, and the anchor plug is pressed into the anchor ring. Thus, anchoring the cable. Open the rear oil nozzle and continue to feed oil from the front oil nozzle. At this time, the tension cylinder moves forward and the oil in the cylinder returns. Finally, open the front oil nozzle to make the oil in the top pressure cylinder return, and the top pressure piston returns to its original position due to the action of the return spring.
After reading the above information, are you interested in it? If you also want to order a fully hydraulic storage tank lifting equipment, please contact WINCOO ENGINEERING CO., LTD.
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