Before using the fuel tank hydraulic jacking system, you should fully check whether the metal structural components and appearance are intact, whether the sound is normal when running at no load, whether the brake is reliable for heavy load testing, whether the safety limits and protection devices are intact, and the most indispensable Is the safety device reliable?
Here is the content list:
l What are the operational safety requirements for tank hydraulic jacking system?
l What is the safety device of the tank hydraulic jacking system?
l Specific operating rules for tank hydraulic jacking system.
1. Tank hydraulic jacking system drivers and signal personnel must be specially trained
2. Pay attention to whether the tower type learned by the tank hydraulic jacking system driver is consistent with the actual tower type
3. Implement a dedicated person and plane to manage tank hydraulic jacking system, captain responsibility system, and strict handover system
4. The newly installed tank hydraulic jacking system or the tank hydraulic jacking system after overhaul must be commissioned according to the instructions.
5. Keep a safe distance between tank hydraulic jacking system and overhead transmission lines
6. Applicable fire extinguishing equipment should be equipped in the driver's cabin of tank hydraulic jacking system
The installation of tank hydraulic jacking system shall not use aluminum conductor and screw steel as grounding body or underground grounding wire. The wires connected by bolts must have one end. There are three main ways to ground:
① The grounding body adopts regular grounding piles, or 33*4.5 long 1.5m steel pipe, or 70*70 long 1.5m angle steel.
② The grounding plate is made of steel plate or other ductile metal plate, with an area of 1 square meter and a depth of 1.5m from the ground.
③ Copper conductors with a cross-section of not less than 28 mm or steel conductors with a cross-section of not less than 50 mm are buried in the wire slot, and the buried length is determined by the grounding resistance.
In the above three methods, the cross-sectional area of the copper wire drawn from the grounding body should not be less than 25. If the soil is poorly conductive, sodium chloride (table salt) can be buried in the soil. Then fill it with water. For the tank hydraulic jacking system, each rail must be grounded, the two rails should be connected by a wire, and the two rails should also be electrically connected.
l About tank hydraulic jacking system safety device:
1. A safety device that prevents the sling on the hook from slipping off automatically.
2. Install a compression spring sheet at the opening of the hook head to close the opening. This spring sheet can only be pressed down and cannot be turned up after the sling is put in. It can prevent the sling of the tank hydraulic jacking system from falling off automatically.
3. Drum safety device: An effective measure to prevent accidents caused by improper winding of the steel wire rope beyond the drum.
4. A steel bar is welded outside the drum to restrict the wire rope to only move within the drum.
5. Fixed foundation: The digging trench is 600mm deep, concrete is poured on the lime soil, the surface is smooth, and there are waterproof and grounding protection measures.
Before use, check that the metal structural parts and appearance are in good condition, the sound is normal when running under no load, the brake is reliable in the heavy load test, the safety limit and protection devices are complete, and the action is sensitive and reliable before operation.
When operating each controller, it should be operated step by step, and it is strictly forbidden to operate over gear. When changing the direction of rotation, the operating handle should be reset to zero, and the motor should stop rotating before reversing the operation. Strive for stability, and it is strictly forbidden to start and stop.
During the operation of the tank hydraulic jacking system, if any abnormality of the machinery is found, it should be shut down immediately for inspection, and operation can only be carried out after the fault is eliminated.
It is strictly forbidden to work with a certificate, and it is strictly forbidden to work after drinking. It is strictly forbidden to use the travel switch to replace the parking operation. It is strictly forbidden to work in violation of regulations, leave the work post or give the machine to others to drive.
When loading heavy objects, you should leave the ground at a certain distance and check that the brake is reliable before proceeding.Insist on "ten" not hanging. After the operation is completed, the box should be powered off and the machine should be "crossed"!
Anyone with a little mechanical knowledge knows that energy can be transformed into each other. It is best to apply this knowledge to the tank hydraulic jacking system to explain the power loss of the hydraulic system. Next, we will introduce in detail how to maintain the tank hydraulic jacking system.
Here is the content list:
l Maintain the tank hydraulic jacking system from the perspective of power source.
l Maintain the tank hydraulic jacking system from a pressure perspective.
l Maintain the tank hydraulic jacking system from the perspective of speed regulation.
Maintain the tank hydraulic jacking system from the perspective of power source.
On the one hand, the power of tank hydraulic jacking system will cause energy loss and reduce the overall efficiency of the system. On the other hand, this part of the energy lost will be converted into heat energy, which will increase the temperature of the hydraulic oil and the deterioration of the oil. The tank hydraulic jacking system is malfunctioning. Therefore, when designing a tank hydraulic jacking system, under the premise of meeting the requirements of use, full consideration should be given to reducing the power loss of the system.
First of all, considering the power source-pump, considering the diversified working conditions of tank hydraulic jacking system actuators, sometimes the system requires large flow and low pressure; sometimes it requires small flow and high pressure.
Therefore, it is appropriate to choose a pressure-limiting variable pump, because the flow rate of this type of pump changes with the change of the system pressure. When the tank hydraulic jacking system pressure decreases, the flow rate is relatively large, which can satisfy the fast stroke of the actuator. When the tank hydraulic jacking system pressure increases, the flow rate decreases accordingly, which can meet the working stroke of the actuator. This can not only meet the working requirements of the actuator, but also make the power consumption more reasonable.
Maintain the tank hydraulic jacking system from a pressure perspective.
Second, when hydraulic oil flows through various types of hydraulic valves, there will inevitably be pressure loss and flow loss. This part of the energy loss occupies a large proportion of the total energy loss.
Therefore, reasonable selection of hydraulics and adjustment of pressure valve pressure are also an important aspect of reducing power loss. The flow valve is selected according to the flow adjustment range in the tank hydraulic jacking system and its minimum stable flow can meet the requirements of use. The pressure of the pressure valve should be as low as possible when the hydraulic equipment is working normally.
Maintain the tank hydraulic jacking system from the perspective of speed regulation.
Third, if the actuator has speed regulation requirements, when selecting a speed regulation loop, it is necessary to meet the speed regulation requirements while minimizing power loss. The speed control circuits of common tank hydraulic jacking system mainly include: throttle speed control circuit, volume speed control circuit, volume throttle speed control circuit.
The throttling speed control loop in the tank hydraulic jacking system has large power loss and good low-speed stability. The volumetric speed control circuit has neither overflow loss nor throttling loss, which has high efficiency but poor low-speed stability. If the tank hydraulic jacking system needs to meet both requirements at the same time, a volume throttling speed control circuit composed of a differential pressure variable pump and a throttle valve can be used, and the pressure difference between the two ends of the throttle valve should be as small as possible to reduce pressure loss.
In summary, a reasonable choice of hydraulic pressure is crucial. When the hydraulic oil flows in the pipeline, it will exhibit viscosity, and when the viscosity is too high, it will generate greater internal friction, causing the oil to heat up, and at the same time increase the resistance when the oil flows. When the viscosity is too low, it is easy to cause leakage, which will reduce the volumetric efficiency of the tank hydraulic jacking system.
Therefore, generally choose oil with suitable viscosity and good viscosity-temperature characteristics. In addition, when the oil flows in the pipeline, there are pressure loss and local pressure loss along the way. Therefore, when designing the tank hydraulic jacking system pipeline, the pipeline should be shortened as much as possible while reducing the number of bends.
The above are the recommended maintenance points to avoid the power loss of the oil tank hydraulic jacking system. However, there are many factors that affect the power loss of the tank hydraulic jacking system. Therefore, if specific maintenance is performed on the storage tank hydraulic jacking system, other requirements should be considered comprehensively!
What are the precautions for using the tank hydraulic jacking system?
The role of the tank hydraulic jacking system is to increase the force by changing the pressure. The main function of the tank hydraulic jacking system is to transmit power and movement. Next, the precautions of the tank hydraulic jacking system will be explained in detail.
Here is the content list:
l Common problems when using tank hydraulic jacking system.
l Combining the above problems, talk about the measures to control the leakage of tank hydraulic jacking system.
l Matters needing attention when using tank hydraulic jacking system.
Common problems when using tank hydraulic jacking system.
Reasons for leakage of tank hydraulic jacking system.
(1) Caused by defects in design and manufacturing
(2) Impact and vibration cause loose pipe joints
(3) Mutual wear of dynamic seals and matching parts (especially hydraulic cylinders)
(4) The oil temperature is too high and the rubber seal is incompatible with the hydraulic oil and deteriorated.
Combining the above problems, talk about the measures to control the leakage of tank hydraulic jacking system.
l Solution 1: Design and manufacturing defect solutions
The selection of external components of tank hydraulic jacking system often plays a decisive role in the leakage of hydraulic system. This determines that in the improvement of tank hydraulic jacking system, our technicians should carefully choose the cylinders, pumps, valves, seals, hydraulic accessories, etc. based on the principle of choosing the best among the best and choosing the cheap.
① Reasonably design the mounting surface and sealing surface of the tank hydraulic jacking system. When the valve block or pipeline is fixed on the mounting surface, in order to obtain a satisfactory initial seal and prevent the seal from being pushed out of the groove and being worn.
② The installation surface of the tank hydraulic jacking system should be straight and the sealing surface should be finished. The surface roughness should reach 0.8μm and the flatness should reach 0.01/100mm. The surface must not have radial scratches, and the pre-tightening force of the connecting screw must be large enough to prevent surface separation.
③ During the manufacturing and transportation of tank hydraulic jacking system, it is necessary to prevent the key surface from bumping and scratching. At the same time, the assembly and debugging process must be strictly monitored to ensure the quality of assembly.
④ Do not be taken lightly about the leakage of some tank hydraulic jacking system, and must be eliminated.
l Option 2: Reduce shock and vibration
In order to reduce the leakage of tank hydraulic jacking system caused by the loosening of pipe joints subjected to shock and vibration, the following measures can be taken:
① Use shock-absorbing brackets to fix all pipes to absorb shock and vibration;
② Use low-impact valve or accumulator to reduce the impact;
③ Properly arrange pressure control valves to protect all components of the tank hydraulic jacking system;
④ Minimize the number of pipe joints used, and try to use welding to connect pipe joints;
⑤ Use straight threaded joints, tee joints and elbows instead of tapered pipe threaded joints;
⑥ Try to replace each piping with oil return block;
⑦ For the highest pressure used by the tank hydraulic jacking system, specify the bolt torque and plug torque during installation to prevent the joint surface and seal from being eaten away;
⑧ Install the pipe joints of the tank hydraulic jacking system correctly.
l Option 3: Reduce the wear of dynamic seals
Most of the dynamic seals have been precisely designed. If the dynamic seals are qualified, installed correctly, and used reasonably, they can guarantee a long-term relatively leak-free work. From the perspective of tank hydraulic jacking system design, designers can take the following measures to extend the life of dynamic seals:
① Eliminate the side load on the piston rod and drive shaft seal;
② Use dust ring, protective cover and rubber sleeve to protect the piston rod to prevent abrasives, dust and other impurities from entering;
③ Design and select a suitable filter device and a fuel tank that is easy to clean to prevent dust from accumulating in the oil;
④ Keep the speed of the piston rod and shaft as low as possible.
Matters needing attention when using tank hydraulic jacking system.
First of all, the requirements for static seals,tank hydraulic jacking system static seals prevent oil leakage between rigid fixed surfaces. Reasonably design the size and tolerance of the seal groove, so that the installed seal will be deformed to a certain extrusion so as to fill the microscopic depression of the mating surface and increase the internal stress of the seal to be higher than the pressure to be sealed.
It should be noted that when the rigidity of the part or the pre-tightening force of the bolt is not large enough, the mating surface will separate under the action of the oil pressure, causing a gap or increasing the gap that may exist from the beginning because the sealing surface is not flat enough. As the mating surface moves, the static seal becomes a dynamic seal. Rough mating surfaces will wear the seal, and the fluctuating gap will eat away at the edge of the seal.
In addition, control the oil temperature to prevent deterioration of the seal. Premature deterioration of the seal may be caused by many factors. An important factor is the high oil temperature. Each time the temperature rises by 10°C, the seal life will be halved. Therefore, a reasonable design of an efficient tank hydraulic jacking system or a forced cooling device should be provided to keep the optimal oil temperature below 65°C.
Among them, engineering machinery of tank hydraulic jacking system must not exceed 80°C, and hydraulic oil and seal types and materials should be selected according to the operating instructions or relevant manuals to solve compatibility problems and extend the service life of seals.
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.
Here is the content list:
l What are the components of installing a tank hydraulic jacking system?
l What are the performance characteristics of installing tank hydraulic jacking system?
l How to install tank hydraulic jacking system?
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. Its main components are:
1. Hoistway part: a closed or net-like frame enclosed by a building or light steel structure, with steel guide rails installed on both sides of the inside
2. Driving part: a small oil tank hydraulic jacking system with hydraulic components such as hydraulic driving motor, oil pump, safety valve, speed control valve and reversing valve
3. Oil cylinder part: it is composed of one or more tank hydraulic jacking system of the lifting oil cylinder straight-top platform or jacking scissor frame
4. Door system: It is a closed or net-shaped platform door or landing door system composed of steel structure. There are manual doors and automatic doors. Generally, open platforms do not have doors.
5. Electrical part: it is composed of power, control, signal, safety and lighting devices
6. Platform part: It is a steel structure platform that carries heavy objects. It has a closed type (ie car type) or an open type. Both sides are equipped with guide rollers or guide shoes. The bottom of the platform can be connected with a lifting cylinder or a lifting scissors steel frame
7. Auxiliary part: it is composed of hydraulic pipe fittings, pipelines, pressure gauges and steel structure base
8. Safety device: safety valve, limit limit, door electromechanical interlock, rupture valve, emergency switch and electrical short circuit protection, etc.
The tank hydraulic jacking system is generally equipped with safety protection devices such as anti-falling, overloading, power failure, etc., rail-type external power unit, using hanging chains or cross bars at the entrance and exit of the table, guardrails and lifting platform operating warning lights or warning bells, when the door is opened Many functions such as a safety switch to close the circuit of the elevator platform. It is extremely convenient and convenient for the operator to control multiple points in each working layer, and operate in jog or safe mode.
The large carrying capacity, stable lifting, simple and convenient installation and maintenance, and it is an economical and practical low-floor elevator to replace the ideal cargo conveying equipment. According to the installation environment and use requirements of the tank hydraulic jacking system, different fixed hydraulic jacks can be selected, and different optional configurations can be selected to complete the task of lifting objects and achieve better results.
If the tank hydraulic jacking system requires a large size, a fixed double-span hydraulic lift can be used. The double-span type has stable lifting, large carrying capacity and simple operation. It is widely used in vehicle maintenance, kilns, chemical plants, equipment supporting, etc. Industry use.
The tank hydraulic jacking system is suitable for installation and use under various environmental conditions indoors and outdoors. The tank hydraulic jacking system can be installed in a closed hoistway or between open floors, in a concave foundation pit or on a flat ground according to the requirements of use.
Due to the height of the building or work shelf, the size and weight of the objects carried, and other usage requirements, there are many uncertain factors in the tank hydraulic jacking system model. When the models shown in the list are not suitable for use requirements, the elevation, carrying capacity, platform area, etc. of the lifting platform can be combined according to the actual use environment and operating requirements to achieve the desired use effect.
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Wincoo Engineering Co., Ltd (WINCOO) is committed to providing customers, manufacturers, EPC/C companies with the most suitable pipe spool fabrication solutions/equipment, involving pipeline manufacturing, storage tank construction, pipeline construction, industrial production lines, clean energy projects and other industries field.
Here is the content list:
l About the service tenet of WINCOO's pipe spool fabrication line.
l What is the scope of after-sales service of WINCOO's pipe spool fabrication line?
l Quality assurance of WINCOO's pipe spool fabrication line.
We have the ability to provide feasible pipe spool fabrication line solutions to support customers to obtain shorter project execution time, less man-hour costs, more efficient construction methods and higher quality in the project bidding stage.
According to the customer's facility space availability, we can research and provide matching configurations on the project schedule to ensure that the pipe spool fabrication line production schedule meets the project requirements!
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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.
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The sand blasting machine uses compressed air to transport powder particles (diameter 1~4mm) from one place to another in the pipeline. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles scour the surface of the object to achieve the effect of improving the surface quality of objects.
What is the principle of sand blasting machine?
What is the workflow of sand blasting machine?
What are the advantages of sand blasting machine?
The sand blasting machine uses the grinding fluid as the feeding power of the grinding fluid, and sends the evenly stirred grinding fluid (a mixture of abrasive and water) to the spray gun through the grinding fluid pump. As the acceleration power of grinding fluid, compressed air enters the spray gun through the air pipe. In the spray gun, the compressed air accelerates the grinding fluid entering the spray gun, and is ejected through the nozzle and sprayed onto the surface to be processed to achieve the desired processing purpose. In the liquid sandblasting machine, the grinding liquid pump is the feeding power, and the compressed air is the acceleration power.
Due to the impact and cutting effect of abrasives on the surface of the workpiece, the surface of the workpiece can obtain a certain degree of cleanliness and different roughness, so that the mechanical properties of the surface of the workpiece are improved, thus improving the fatigue resistance of the workpiece and increasing its adhesion between the coating and the coating prolongs the durability of the coating film. The sand blasting machine is also beneficial to the leveling and decoration of the paint, removing impurities, variegation and oxide layer on the surface, and at the same time roughening the surface of the medium, eliminating the residual stress of the workpiece and improving the surface hardness of the substrate.
1. The number and arrangement of shot blasting are calculated by computer shot blasting simulation. The 8 impellers are located up, down, left and right, respectively, to ensure that the shot blasting projectile covers most of the steel surface, including the ends. It ensures that the effect of shot blasting is comprehensive and effective.
2. The system of the sand blasting machine is a centrifugal hedging type shot blasting machine, which has the advantages of large blasting amount and fast ejection speed. The quantity and momentum of projectiles ejected to the surface of the workpiece in unit time are greatly improved. Therefore, the shot blasting time can be shortened, the efficiency can be improved, and a satisfactory cleaning quality can be achieved.
3. The dust removal system adopts filter type backwashing. The dust collector adopts a folded dust filter cartridge, which increases the dust removal area. The filter cartridge adopts nanofiber technology; the dust removal efficiency is over 99.99%, especially for dust particles with a diameter of 0.5μm. After high-efficiency filtration, the air is clean and can be recycled or discharged indoors. The pulse controller can adjust the frequency, speed and intensity of dust removal. Compared with the traditional domestic bag-type single-stage dust removal system, it has the advantages of high dust removal efficiency, small running resistance, small size, light weight and convenient replacement. Emissions comply with national emission standards.
This is the information about the sand blasting machine. If you would like to learn more about the sand blasting machine, please connect WINCOO ENGINEERING CO., LTD.
Containerized pipe spool fabrication solution is to carry out pipe design, prefabrication management, pipe cutting, pipe groove processing, welding, logistics and anti-corrosion paint, pipe flaw detection and other work in a fixed area.
What is the significance of the emergence of the solution of container pipe spool fabrication line?
What are the advantages of the solution of container pipe spool fabrication line?
What are the characteristics of the solution of container pipe spool fabrication line?
In order to give full play to the advantages of pipeline prefabrication equipment and overcome the limitations of fixed pipeline prefabrication lines, we developed a solution of container pipe spool fabrication line, which has been widely used in companies such as PetroChina, Sinopec, and China National Chemical Corporation.
Solution of container pipe spool fabrication line consists of pipe beveling station, pipe mechanical assembly station, automatic pipe welding station, quick release steel structure station frame, trolley railing system and light rail. Transportation System. Pipe manufacturing is carried out through the field of pipe manufacturing. At present, the comprehensive performance of the solution of container pipe spool fabrication line will reach a higher level in China.
1. The detailed design adopts the most advanced "Pipeline Manufacturing Design System" software in China to realize the rapid drawing of pipeline single-line diagram and pipe section diagram. After configuring the IDF interface module, the design data of the PDS and PDMS design institutes can be directly shared, realizing the "seamless connection" between design and construction.
2. The solution of container pipe spool fabrication line adopts the domestic first-class "pipe manufacturing and installation management system" software to realize the all-around information management of the whole manufacturing process.
3. The groove adopts a reliable mobile pipe groove station, and the pipe groove adopts two methods
4. The solution of container pipe spool fabrication line adopts the tumbler type pipe plasma cutting and beveling machine, and adopts the method of thermal cutting to cut the pipe and form the groove in one step.
The solution of container pipe spool fabrication line is a key link in the realization of project objectives in the field of energy and petrochemicals. The products in the solution of container pipe spool fabrication line will be used in various spool workshops. Materials and manufacturing standards can be ASME/ASTM, PED, JIS, GB, TS, etc. STE can undertake material procurement, cutting, assembling, welding, painting, spool lining and coating, supporting fabrication and spool field installation work scope. Wincoo has third-party qualified 5G and 6G ASME/PED welders, and has long been engaged in the manufacture of high-strength steel, alloy and various stainless-steel spools.
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