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Hydraulic jacking system is an important machine for tank construction. The equipment is mainly used for inverted construction of vertical cylindrical steel tank (hydraulic lifting method) in petrochemical industry, inverted construction of steel liner in power plant chimney and inverted construction of vertical cylindrical low temperature tank. I will give you a detailed introduction of the hydraulic jacking system.

• What are the characteristics and applications of hydraulic jacking system?

• What are the types of hydraulic jacking system?

• What is the working principle of hydraulic jacking system?

• What are the construction steps of hydraulic jacking system?

What are the characteristics and applications of hydraulic jacking system?

●Application

1.The hydraulic jacking system are mainly used for vertical tank top to bottom construction.

2.Also it can be used for mega work piece jacking or lifting.

●Features

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 jacking system 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 1475mm, which can satisfy each annular shell with 2500 plate one-step lift. Greatly reduce the time waste.

7.Hydraulic cylinder basic height is 2050mm, which can match automatic girth welding machine to proceed internal girth seam welding.

8.Module configuration, the hydraulic jack 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; Usually one Horizontal seam welding machine can match 6-10 skilled welder. Vertical seam welding machine can match around 20-30 people skilled welder and butt/fillet welding tractor can match 6-15 skilled welder.

What are the types of hydraulic jacking system?

At present, we have three types of hydraulic jacking system in WINCOO Engineering Co., LTD. They are the following three: Advanced hydraulic jacking system, Simple unfixing Holding -latch hydraulic Jacking system and Simple chain type hydraulic jacking system.

What is the working principle of hydraulic jacking system?

Hydraulic jacking system (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 jacking system and hydraulic hoist composing of lifting frame and lifting rod are adopted. When oil enters hydraulic jacking system, 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 construction steps of hydraulic jacking system?

The following short description gives the working procedure in outline. It can in certain details be modified when required.

1.The tank bottom – plates are placed on the prepared foundation and welded together.

2.The beams or lattice work of the roof are assembled and finally joined to the upper rim of the shell ring.

3.The hydraulic jacking system is installed in the tank. The plates of the second shell ring (next to the top ring) are positioned outside the first one.

4.The completed part of the tank (roof and top shell ring) is lifted hydraulically to a height at which the plates of the second ring can be moved into place and the roof sheeting can be completed.

5.The plates of the second shell ring are located exactly and welded together to the lower edge of the first ring.

6.The plates of the third shell ring are placed outside the second shell ring.

7.The completed part of the tank (roof the two uppermost shell rings) is lifted.

8.The above cycle of operations is repeated until the last (bottom) shell ring is finished.

9.The entire tank is lowered down to the bottom plate and welded to this.

10.The lifting equipment is dismantled.

Hydraulic jacking system is mainly used in large tank construction. WINCOO ENGINEERING CO.,LTD is supplying tank hydraulic jacking system to tank contractors worldwide.

The plate rolling machine is designed to roll the flat plate into a circular arc and cylindrical shape, which is widely used in the container manufacturing industry. It is indispensable equipment for these companies.

Why does the rolling machine need to be sealed?

What is forbidden to workers when operating a rolling machine?

What is a hydraulic rolling machine?

Why does the rolling machine need to be sealed?

The reliability and service life of the seals in the hydraulic system of sheet metal bending machine are important indicators to measure the quality of the hydraulic system.

In addition to gap seals, seals are used to keep the gap between two adjacent coupling surfaces below the minimum gap through which the liquid to be sealed can pass. The seals in the hydraulic system of sheet metal bending machine are usually contact seals. There are two types of self-sealing compression seals and self-sealing self-clamping seals, also known as lip seals. However, the factors influencing the performance of different seals in the hydraulic system of the sheet metal rolling machine are different, just as with the three-roller roller. In fact, the seal of the hood is still influenced by temperature, pressure and the existing medium.

What is forbidden to workers when operating a rolling machine?

During the measurement of the roundness of dimensions, the operator of the rolling machine is forbidden to stand on the rolled cylinder, and it is forbidden to stand on the workpiece to be machined. For some difficult-to-process workpieces, such as thicker or larger diameters, high hardness or strength of raw materials, etc., this should be done by a small number of operations simultaneously to achieve the desired effect. For some workpieces with smaller diameters, they should be rolled in the middle of the rollers for operation.

What is a hydraulic rolling machine?

The main features of hydraulic plate rolling machine: the upper roller of the machine can be lifted vertically, and the hydraulic transmission of vertical lifting is achieved by the action of the hydraulic oil in the hydraulic cylinder on the piston rod; The torque is provided, and there are tensioners under the lower roller that can be adjusted. The upper roller has the shape of a drum, which improves the straightness of the product and is suitable for tanks with various cross-sectional shapes with ultra-long specifications.

Hydraulic rolling machines can roll metal plates into circles, arcs and conical workpieces within a certain range. The two lower rollers of this model are active rollers and the upper rollers driven rollers. It is widely used in shipbuilding, boiler, aerospace, hydropower, chemical, metal structure and mechanical engineering industries.

The hydraulic rolling machine is suitable for bending metal plates. It can roll circular, arc and conical workpieces within a certain range and has the function of pre-bending the end of the plate. The two lower roles of this model are active roles. Horizontal movement, the upper roller is a driven roller and can move up and down. There are mechanical and hydraulic movements. The driveshafts are connected by cardan couplings.

To meet these growing demands, WINCOO ENGINEERING CO., LTD has various rolling machines, all of which are more effective, reliable and consistent.

Hydraulic storage tank lifting equipment is a kind of jack that uses a plunger or a hydraulic cylinder as a rigid jacking member. Simple lifting equipment is generally only equipped with a lifting mechanism to lift heavy objects.

Why do we maintain hydraulic storage tank lifting equipment in the right ways?

Why can't the hydraulic storage tank lifting equipment lift go up?

What are the advantages of hydraulic storage tank lifting equipment?

Why can we maintain hydraulic storage tank lifting equipment in the right ways?

(1) The bottom of the hydraulic storage tank lifting equipment should be flat and tough when used. Oil-free planks to expand the bearing surface and ensure safety. Can not use iron plate instead of wood, to prevent sliding.

(2) When lifting, it is required to be stable. After the heavy object is lifted for a while, it is necessary to check whether there is any abnormality. If there is no abnormality, the roof can continue to be lifted. Do not lengthen the handle arbitrarily or operate it too hard.

Why can't the hydraulic storage tank lifting equipment lift go up?

Most of the hydraulic storage tank lifting equipment lift hydraulic power source is used for lifting and lowering operations. With the aging of the mechanical structure, some small faults will inevitably occur after long-term use, such as the lift does not lift, so what is the reason? The hydraulic lift cannot afford There are many reasons for the rise, the common ones are:

1. The load is too heavy, exceeding the rated load, and the load can be reduced.

2. The oil return valve is not closed, causing the hydraulic system to not work normally, and the oil return valve needs to be tightened.

3. The filter is blocked, replace or clean the filter.

4. If the hydraulic oil is insufficient, add enough hydraulic oil to the lift.

What are the advantages of hydraulic storage tank lifting equipment?

Main features of hydraulic storage tank lifting equipment:

1. The system consists of hydraulic pump station, oil cylinder, steel wire and stroke. Easy to install and operate;

2. The system adopts PLC central control to handle elevators. Each power pack is equipped with an auxiliary balance device to ensure the accuracy of simultaneous lifting;

3. The hydraulic lifting pump station has two operation modes: auxiliary manual control and central control. The cylinder can be adjusted to lift individually or in multiple groups, or in combination with multiple groups to achieve better precision and better welding effect;

4. All cylinders are equipped with safety valves. In the event of power failure, high-pressure hose rupture, burst, etc., it can be automatically locked to prevent the cylinder/fuel tank from falling.

With a large number of suppliers, we can choose the right suppliers according to customers' requirements and provide the most cost-effective products. WINCOO ENGINEERING CO., LTD provides big pressure vessel, heavy duty pressure vessel, industrial pressure vessel, automatic pipeline construction equipment, electric vertical tank construction solution, etc.

The tank welding machine can automatically and continuously weld the front and back of the cell according to the specified requirements. The welding band is fed and cut automatically during welding, and the battery string is received automatically after welding is completed. Welding processes include infrared lamp welding and electromagnetic high frequency induction welding.

What are the characteristics of tank welding machine?

What are the working characteristics of the tank welding machine?

What is the workflow of the tank welding machine?

What are the characteristics of tank welding machine?

In contrast to the current round welding machines on the market, the tank welding machine of the MSHW series offered by WINCOO Engineering is equipped with a dual drive system as standard. This self-propelled submerged welding system can reduce tank welding time on site by 40%. Welding errors are greatly reduced, saving tank installation costs. The circumferential welding machine is suitable for top-down or bottom-up constructions of single- or double-wall storage tanks for internal and external welding. There are four standard units, but our design allows us to offer custom mounting units for non-standard applications.

What are the working characteristics of the tank welding machine?

The tank welding machine belongs to fusion welding, in which a laser beam is used as energy to act on welds.

The laser beam of the tank welding machine can be guided through a flat optical element (such as a mirror), and then the beam is projected onto the weld by a reflective focusing element or mirror.

Tank welding machine is a non-contact welding process that does not need to be pressurized during operation, but an inert gas is required to prevent oxidation of the melting pool, and occasionally filler metal is used.

The tank welding machine can be combined with MIG welding to form laser MIG composite welding to achieve large-impact welding, and the heat supply is greatly reduced compared to MIG welding.

What is the workflow of the tank welding machine?

The circumferential welding equipment is a tank welding machine. The most important welding parameters in circular welding include welding current, welding torch speed, inert gas flow, etc. At the same time, the clearance fit of welded joints also plays a decisive role. Under the existing conditions, pipe ends are machined before welding lathes and repaired by fitters. In this case, the dimensional accuracy of the short ends is difficult to meet the requirements of the drawings, resulting in uneven fit gaps between the pipe ends and pipe connections; In addition, if the pipeline is displaced during staple welding, this will cause uneven spacing of the fitting surface, so that the surface of the weld is pressed in after circumferential welding. During the welding process of tank welding machine, the inside of the pipe is protected by argon gas. If there is no argon gas protection in the line, the back of the weld will be poorly formed and at the same time oxidation will occur.

Based on the availability of the customer's plant/site, WINCOO ENGINEERING CO., LTD is able to study/design and present coordinated configurations on project plan, quality, cost and productivity to ensure production pace meets project requirements.