Safety Automatic Tank Jacking System for LNG Tank

Overview of hydraulic jack

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 overall structure and working principle of hydraulic jack

★The overall structure

1, The 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 

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.

Outline drawing of jack

Layout of equipment

Hydraulic station scheme drawing

★Main features of hydraulic jack

1, The system consists of hydraulic pump station, cylinders and steel wire. 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.

Model and parameter of hydraulic jack

Construction site photos of hydraulic jack

Company introduction

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.

Our Services & Strength

We have ability of providing workable solutions to support clients to be awarded with shorter project execution time, fewer man-hour cost and higher efficiency construction/fabrication method and better quality during phase of project bidding.
Based client’s facility/site space availability, we are able to study/design and present matched configurations on project schedule, quality, cost and productivity to guarantee production pace is accordance with project requirement.
To support project execution, we are always ready to work as fireman to give prompt supply on project materials from different consumables, tools, equipments/machines to special merchandise. With flexibility, we are also glad to perform as procurement agent in China to seek required supply resources.

What we can do for you?

1. Support you to win the project during bidding phase. We can provide your more suitable configurations to help you shorten the constrcution time.
2. We can provide all technical documents and advices to support you for construction procedure clearifications
3. We can calculate the most suitable number of hydraulic jack according to the weight of the tank
4. We can provide your suitable hydraulic jack accessories with much more competetive price from our long time business partner if you need.
5. We can provide site people training service, and operation service or manpower service or as a subcontractor.