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Tank hydraulic jacking system is mainly a closed or meshed hoistway enclosed by buildings or light steel structures and hydraulically driven cylinders to lift the platform. So what are the advantages and disadvantages of the use of tank hydraulic jacking system?
Here is the content list:
l What are the components of the tank hydraulic jacking system?
l What are the advantages and disadvantages of tank hydraulic jacking system?
l How to deal with the shortcomings of tank hydraulic jacking system?
What are the components of the tank hydraulic jacking system?
A complete tank hydraulic jacking system consists of five parts, namely power components, executive components, control components, auxiliary components (accessories) and hydraulic oil.
The function of the power element is to convert the mechanical energy of the prime mover into the pressure energy of the liquid, which refers to the oil pump in the hydraulic system, which provides power to the entire hydraulic system. The structure of hydraulic pumps generally includes gear pumps, vane pumps, plunger pumps and screw pumps.
The function of the executive components (such as hydraulic cylinders and hydraulic motors) is to convert the pressure energy of the liquid into mechanical energy, and drive the load for linear reciprocating motion or rotary motion.
What are the advantages and disadvantages of tank hydraulic jacking system?
The tank hydraulic jacking system consists of hydraulic pump station, oil cylinder, steel wire and stroke, which is easy to install and operate. The tank hydraulic jacking system uses PLC central control for lifting. Each power unit is equipped with an auxiliary balance device to ensure the accuracy of simultaneous lifting. In addition, the hydraulic lifting pump station has two operating modes: auxiliary manual control and control. The cylinder can be adjusted to lift individually, or it can be combined with other lifting units into a group, or it can be integrated with multiple lifts to achieve higher accuracy and better welding results!
On the other hand, all cylinders of the tank hydraulic jacking system are equipped with safety valves. It can be automatically locked, even in the event of a power failure, a rupture of the high-pressure hose, or a rupture, it can prevent the cylinder/fuel tank from falling. The number of tank hydraulic jacking system can be adjusted according to the tank size and weight high efficiency, it only takes 15 minutes for each rise or fall. It can be used in conjunction with our company's slot welding machine, which can greatly reduce labor costs and reduce construction time.
l Advantages of tank hydraulic jacking system:
1. Small size and light weight
2. Large rigidity, high precision and fast response
3. Large driving force, suitable for heavy load direct drive
4. Wide speed range and various speed control methods
5. Self-lubricating, self-cooling and long life
6. Easy to realize security protection
l Disadvantages of tank hydraulic jacking system:
1. Poor anti-contamination ability of working fluid
2. Sensitive to temperature changes
3. There is a hidden danger of leakage
4. Difficult to manufacture and high cost
5. It is not suitable for long-distance transmission and requires hydraulic energy
How to deal with the shortcomings of tank hydraulic jacking system?
The tank hydraulic jacking system is generally flushed before it is officially put into operation. The purpose of flushing is to remove contaminants, metal chips, fiber compounds, iron cores, etc. remaining in the system. During the first two hours of work, even if the tank hydraulic jacking system is not completely damaged, It will also cause a series of failures. Therefore, the oil circuit of the tank hydraulic jacking system should be cleaned according to the following steps:
l 1) Clean the oil tank with an easy-to-dry cleaning solvent, and then use filtered air to remove solvent residues.
l 2) Clean all pipelines of the tank hydraulic jacking system. In some cases, the pipelines and joints need to be immersed.
l 3) Install oil filter in the pipeline to protect the oil supply pipeline and pressure pipeline of the valve.
l 4) Install a flushing plate on the current collector to replace precision valves, such as electro-hydraulic servo valves.
l 5) Check whether all pipelines are of appropriate size and connected correctly.
If it is found that the oil filter is clogged, change the oil filter immediately. The flushing cycle is determined by the structure of the tank hydraulic jacking system and the degree of system pollution. If the sample of the filter medium has no or few foreign pollutants, install a new oil filter and unload it. Flush the plate and install the valve to work! Planned maintenance: Establish a regular system maintenance system, and suggestions for better maintenance of the tank hydraulic jacking system are as follows:
l 1) Check and replace the oil at most 500 hours or three months.
l 2) Flush the imported oil filter of the oil pump regularly.
l 3) Check whether the hydraulic oil is contaminated by acidification or other pollutants. The smell of the hydraulic oil can roughly identify whether it has deteriorated.
l 4) Repair leaks in the tank hydraulic jacking system.
l 5) Ensure that no foreign particles enter the fuel tank from the vent cap of the fuel tank, the plug seat of the oil filter, the sealing gasket of the oil return line and other openings of the fuel tank.
Hydraulic jack is mainly used in the inverted construction of vertical cylindrical steel storage tank (hydraulic lifting method) in petrochemical industry, inverted construction of steel liner in power plant chimney and inverted construction of vertical cylindrical low temperature storage tank, etc. Today I will introduce our YT series hydraulic jack, and take the YT30 for example. I will introduce this product in the following aspect.
●The features of equipment
●The structure of equipment
●The overall structure of the equipment and its working principle
The features of equipment
1.The set of equipment is mainly composed of hydraulic lifting pump station, hydraulic cylinder, wire rope and so on, easy to install.
2.The equipment adopts PLC program to control the lifting centrally. Each lifting pump station is equipped with displacement sensor device, which is easy to operate and has high lifting synchronization accuracy.The equidistant distance can be adjusted arbitrarily.
3.The hydraulic lifting pump station can be divided into two modes: dynamic and centralized control. The hydraulic cylinder can be adjusted (fine-tuning) rising and falling individually or locally (several), and can be controlled centrally by multiple groups. The lifting height can be more accurately controlled, which is convenient for the butt adjustment of the welding seam of the tank wall.
4.Each hydraulic cylinder is equipped with safety valve, good self-locking,equipment will not be due to power failure in the process of operation;
5.The blasting and breaking of a high-pressure rubber hose.The failure of a hydraulic cylinder causes the tank or heavy weight to slide or fall, and the hydraulic lifting process is safe and reliable.
6.The stroke of hydraulic cylinder is 3200mm, which can meet the one-time lifting completion of the existing panel width and reduce the lifting time.
7.The overall base length of the equipment is only 2200mm, which can fully meet the automatic welding process of large storage tank inner ring seam.
The structure of equipment
Electrical control system: power supply part, control part (operating platform) and pump station control box.
Pump station control box
The equipment consists of five parts;It is composed of power supply part, control part, hydraulic station part and pipeline part
● The power supply part provides power supply for the control part, and the hydraulic station provides power supply.
● The control part provides control for hydraulic station and hydraulic jack
● Hydraulic station: it is composed of oil pump electric unit, hydraulic valve set, high-pressure ball valve, high-pressure rubber hose and oil tank to provide hydraulic energy for hydraulic jack.
● Hydraulic jack part: hydraulic cylinder, wire rope, such as equaling rod device, hydraulic cylinder roof device, hydraulic cylinder support rod, etc
● The fixed plate, wire rope lifting lug and pin for the hydraulic cylinder are made by the user.
The overall structure of the equipment and its working principle
1.The overall structure of the equipment
1).The set of equipment is evenly placed around the lifting object, the overall force and lateral force of the equipment are strictly calculated and successfully applied.
2).Precise and compact structure, adjustable output force, lifting speed to meet lifting requirements, high synchronization accuracy.
2.Working principle of equipment
Force transfer process:
Output force of hydraulic cylinder → steel wire rope → rising ring (welded with lifting lug) → conduction plate → wall plate lifting
Hydraulic jacking system is mainly used in large tank construction. WINCOO ENGINEERING CO.,LTD is supplying tank hydraulic jacking system to tank contractors worldwide.
YT-C type hydraulic storage tank lifting equipment is a set of large hydraulic lifting equipment specially developed by our company for national crude oil reserve project in 1994.As long as the number of hydraulic cylinder and pump station system is increased or decreased, this type of equipment can be applied to the inverted construction of large storage tanks with different volumes ranging from thousands of cubic meters to hundreds of thousands of cubic meters.
The control part adopts Siemens PLC modular design concept, simple operation, reliable quality.The hydraulic cylinder can be used for single or multiple lifting height adjustment, and can also be used for centralized control of multiple groups.Through more than ten years of practice summary, we continue to optimize the equipment, improve the production process, so that the product quality and performance greatly improved, the majority of users praise.
★The overall structure of the equipment
★Working principle of the equipment
★Main features of Hydraulic jacks
The overall structure of the equipment
1, The hydraulic lifting equipment is evenly placed inside the jacked tank. The overall force and lateral force of the equipment are calculated strictly and successfully applied.
2, The structure is rigorous and compact, the output force is adjustable, the jacking speed meets the jacking requirements, and the synchronization accuracy is high.
Working principle of the equipment
The transfer of force: output force of hydraulic cylinder → steel wire rope → rising ring (welded with lifting lug) → rib plate for transferring force → tank wall jacking
Jacking control process:
1, Pump station control box (rotating selection button) → Centralized control operation box (Figure 1-3) → hydraulic jacking pump station (solenoid of valve group) →PLC devices → centralized control operation box → hydraulic jacking pump station → integral or partial lifting or lowering of hydraulic cylinder.
2, Pump station control box (rotating selection button) → control handle → hydraulic cylinder (single or multiple) fine adjustment up and down.
Main features of Hydraulic jacks:
1, The system consists of hydraulic pump station, cylinders, steel wire, and strokes. Easy to installation and operation;
2, The system utilizes PLC central control to handle lift. Each power pack is equipped with auxiliary balance device to guarantee the precision of simultaneously lifting;
3, Hydraulic lift pump station has subsidiary manual control and central control two operation models. The cylinder can be adjusted to lift separately or to lift with several others as one group, and multi groups can also be integrated to lift reach better precision and better welding effect;
4, All the cylinders are with safety valve. It can be automatically locked to avoid cylinder/ tank dropping even under situation of power off, high-pressure hose broken, burst;
5, The cylinder is with one high pressure hose to avoid oil leaking that usually happen by the traditional multiple hoses. Cylinder will return to initial condition by itself weight;
6, Stroke of Hydraulic cylinder is various as per tank plate width, which can satisfy each annular shell plate one-step lift. Greatly reduce the time waste;
7, Hydraulic cylinder basic height is based on the tank shell width, which can match automatic girth welding machine to proceed internal girth seam welding;
8, Module configuration, the jacking system quantity can be adjusted as per different size of tank and weight;
9, High efficiency, each time lifting or falling down only needs around 15 minutes;
10, Can well cooperate with our tank welding machines, which can greatly reduce the manpower cost and reduce the construction time.
Wincoo Engineering Co., Ltd (WINCOO) is engaged in bringing the most suitable solutions/equipments for client, fabricators, EPC/C companies on pipe fabrication, tank construction, pipeline construction,industrial production lines, clean energy project and other industrial field.If you want to know more about hydraulic lifting equipment, please visit our website
The EGW welding used by the tank welding machine is gas-electric vertical welding, which is a gas-shielded arc welding method developed from ordinary gas-shielded gas welding and electroslag welding. The advantages are high productivity and low cost. The main difference with narrow gap welding is that the weld is formed in one pass, rather than multi-pass multi-layer welding.
What are the technical features of tank welding machine?
What is the development trend of tank welding machine?
What is the operation method of tank welding machine?
How to operate tank welding machine?
(1) Left welding method (right→left): small residual height, large width and small splash, which is easy to observe the welding seam, the welding process is stable, the gas shielding effect is good, but the depth of dissolution is shallow.
(2) Right welding method (left→right): The remaining height is large, the width is small, and the splash is large, which is convenient for observing the molten pool and the depth of the molten metal.
(3) Gun delivery method: zigzag swing.
(4) Flat fillet welding does not swing or swing slightly.
(5) The vertical angle is welded upward, and the triangular gun is used.
(6) Welding torch transition: stay on both sides of the molten pool and transition at the front 1/3 of the molten pool.
(7) Gun angle: perpendicular to the weld bead, at an angle of 80-90° along the direction of the gun.
(8) Test plate: the gap is 2.0-2.5mm, and the arc starting point is slightly smaller than the arc ending point. No blunt edge, anti-deformation 1°.
(9) To prevent defects: prevent the angle from melting - burn through the angle. No fusion between layers - pay attention to the gun angle.
What are the technical features of tank welding machine?
The direction of the arc axis of the tank welding machine is perpendicular to the direction of the penetration depth of the weld. During welding, a water-cooled copper slider is used on the front of the weld, and a water-cooled gear row (or pad) is used on the back of the weld. The flux-cored wire is fed into the weldment and in the groove formed by the stopper, the four sides of the molten pool are constrained to realize single-sided welding and double-sided forming at one time. Tank welding machine is a high-efficiency welding technology and equipment.
What is the development trend of tank welding machine?
In recent years, the promotion and application of tank welding machine in engineering has achieved good results, and in-depth research on the fusion welding mechanism of gas-electric vertical welding technology. Tank welding machine has good welding quality, high deposition speed and low comprehensive cost, which provides a broad prospect for the popularization and application of this efficient automatic welding technology and equipment.
With a large number of suppliers, we can choose the right suppliers according to customers' requirements and provide the most cost-effective tank welding machines. For more information, please connect WINCOO ENGINEERING CO., LTD.
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