Ukraine ASME PED Composite Autoclave finished Production in advance and will Delivery soon

 2021.11.15 is a good day for us . Taian Strength Equipments Co.,Ltd manufactured middle size experiment ASME PED composite autoclave finished production one month in advance. We choose a good day to deliver it to Odessa Ukraine soon.

In recent years, with the continuous advancement of science and technology. New materials and new technologies continue to emerge. With the gradual improvement of people’s requirements for a better quality of life. Corresponding new materials continue to emerge. Composite materials continue to be favored by people for their high-strength, low-weight, and high-lightness characteristics. At present, composite products have been widely used in industries. Such as automobiles, aerospace, high-speed rail, aircraft manufacturing, and aircraft engines. Necessarily, in all these composite products, the composite autoclave plays a key role in its manufacturing.

The aircraft engine is known as the jewel of industry. In addition the level of engine manufacturing represents the height of a country’s comprehensive industrial strength. One aircraft engine company in Ukraine is a traditional aircraft engine development manufacturing unit in Ukraine. Furthermore it has a place in Ukraine and the world in aircraft engine manufacturing. In recent years, the world’s demand for aircraft engine has increased. Moreover the performance requirements have also been continuously strengthened. New materials represented by composite materials are increasingly favored by aircraft engine manufacturers due to their high strength, light weight, and low-cost manufacturing characteristics. More and more engine parts use this composite material.

Taian Strength Equipments co.,Ltd is a domestic star enterprise in the manufacture of new ASME PED composite autoclave. It specializing in the production of ASME PED composite autoclave required for the production of such composite materials. Thanks to our company’s good reputation in the industry. Ukraine aircraft companies on September 10, 2021 found our company exclusively through government relations. They want us supply them one middle size experiment ASME PED standard composite autoclave for them. Because they specially used in the production of a core component of the engine. Both of us reached the final ASME PED composite autoclave technology requirements as follows after by fully communicate:

Work diameter: 1200mm

Work Length: 3000mm

Work pressure: 0.8Mpa

Work temperature: 200℃

Vacuum lines: 12

Thermocouples: 12

Manufacture standard: ASME+PED

After the relevant plan is determined, our engineers immediately involved in the design. And review of the industrial horizontal composite autoclave . In order to strictly follow the production standards, our internationally renowned third-party inspection agency Lloyd’s contacted and participated in the inspection and production process. When it comes to export products, our company will purchase all the materials involved in the ASME PED composite autoclave from Wuyang. The steel plant with the best quality pressure vessels in China.

On November 15, 2021, after two months of intensive and orderly production, our company completed all the manufacturing and inspection of the ASME PED industrial horizontal composite autoclave one month in advance. Related indicators such as RT, MT test , hydraulic test, safety, airtightness and other parameters have satisfactorily exceeded the customer’s index requirements. The commissioning and operation of all systems and equipment also fully met customer requirements, and the ASME PED industrial horizontal composite autoclave was successfully concluded.

Taking the opportunity of Ukraine to manufacture ASME PED composite autoclave, our company will continue to increase investment and will continue to develop various types of composite autoclaves to meet the individual needs of different customers in different industries.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines. Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries, please fill and submit the following form, we will reply as soon as possible.

PED Air Pressure Tank Exported to Germany

   PED Air Pressure Tank (is also called compressed air storage tanks, buffer tank, air receiver, surge tank, etc.) is used to store gas and stabilize the system pressure. According to the different requirements of customer, STRENGTH can produce high pressure, normal pressure or low pressure buffer tank of ASME, CE (PED), GB150 (China standard).

  In mid-September, we received the inquiry of air pressure tank from Germany. Furthermore, the customer produces nitrogen generator and wants to purchase air pressure tank for nitrogen generator. In addition, the customer provided detailed parameters, volume 1.5m3, diameter 1000mm, working pressure 0.8MPa, 2 sets; volume 1m3, diameter 800mm, working pressure 3MPa, 1 set. Since the customer needs PED certification, and we quoted according to customer’s requirements. 

  For actually, PED (Pressure Equipment Directive PED 2014/68/EU) is a directive, a mandatory regulation issued by EU member states on the safety of pressure equipment. Regardless of its pressure and volume, all equipment whose design pressure exceeds 0.5bar (0.05MPa) must comply with the PED regulations.

  In fact, the air inlet and outlet flange standard of the pressure tank is in accordance with B16.5-2013, the flange size is 2’’, and the nozzle is connected to the nitrogen generator by bolts. Moreover, the color of the buffer tank is white, with 2 logos on the front and back.

Specifications of PED Air Pressure Tank PED

No. Item Parameter

1 Volume: 1.5m3

2 Diameter: 1000mm

3 Height of Shell: 1500mm

4 Working Pressure: 0.8MPa

5 Material: SA516GR70

6 Shape: Vertical

7 Qty.: 2

8 Manufacture Standard: ASME+PED

Specifications of PED Air Pressure Tank PED

No. Item Parameter

1 Volume: 1m3

2 Diameter: 800mm

3 Height of Shell: 1700mm

4 Working Pressure: 3MPa

5 Material: SA516GR70

6 Shape: Vertical

7 Qty.: 1

8 Manufacture Standard: ASME+PED

  After fully communicating with the customer, we issued the construction drawings to the customer. Next, air pressure tank began production in early October. During this period, Lloyd’s Third Party AI came to our factory to review relevant data and verify the hydraulic test. In mid-November, the PED air pressure tank shipped from Qingdao Port, China to Hamburg Port, Germany.

About STRENGTH Equipments

  Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines. Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

  STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries, please fill and submit the following form, we will reply as soon as possible.

Introduction of Pressure Vessel Welding Type

   Pressure vessel welding is a process in which two separate pressure vessel iron and steel objects are combined to form a whole by combining atoms (molecules) with the help of energy. Most of the materials used to make pressure vessels are steel. And most of them are ordinary carbon steel and low-alloy structural steel. At present, the main methods of pressure vessels welding include manual arc welding, gas shielded welding. Such as self-shielded arc welding, submerged arc welding, spot welding and so on.

(1) Manual arc welding

The welding method that relies on the heat of the arc is called arc welding. Manual arc welding is a kind of arc welding that uses a manual electrode to weld. And it is the most commonly used method in pressure vessel welding.

The principle of manual arc welding, the electrode and the weldment are two electrodes that generate an arc. Moreover, the arc generates a lot of heat to melt the electrode and the weldment. The end of the electrode melts to form a droplet, which transitions to the base metal of the molten weldment to fuse. Then forming a molten pool and undergoing a series of complex physical-metallurgical reactions. As the arc moves, the liquid molten pool gradually cools and crystallizes, forming a weld.

(2) Gas shielded arc welding

The gas shielded electric welding used in the pressure vessel welding is also called molten electrode gas arc welding. Pressure vessel welding uses the welding wire and the weldment as two poles. The arc heat is generated between the two poles to melt the welding wire and the base metal of the weldment. At the same time, the shielding gas is sent to the welding area. Separate the arc, the molten welding wire, the molten pool and the nearby base metal from the surrounding air. Afterwards, the welding wire is automatically fed in, continuously melted under the action of the arc. Then merged with the molten base metal to form a weld metal.

Furthermore, this pressure vessel welding method is referred to as GMAW (Gas Metal Arc Welding) due to the difference of shielding gas. It can be divided into CO2 gas shielded arc welding. In fact, it is the most widely used welding method at present. It is characterized by the use of large current and thin welding wire, which has fast welding speed, large penetration depth and high operating efficiency.

(3) Self-shielded arc welding

Pressure vessel welding self-shielded arc welding was once called pressure vessel non-gas-shielded arc welding. Compared with gas shielded arc welding, the wind resistance is better. When the wind speed reaches 10m/s, the weld with no porosity and superior mechanical properties can still be obtained. Due to automatic welding, the welding efficiency is extremely high. The welding torch is light and does not use gas cylinders, so the operation is very convenient, but the price of welding wire is higher than that of CO2 shielded welding.

(4) Submerged arc welding

Pressure vessel wedling submerged arc welding is a kind of arc welding in which the arc burns under the cover of meltable granular flux. The bare welding wire continuously fed into the molten pool is not only a metal electrode, but also a filler material. The arc burns under the flux layer to melt the wire and base metal to form a molten pool. The molten flux turns into slag, which covers the surface of the molten metal pool to separate the high-temperature molten pool metal from the air. In addition to the protective effect of the flux forming slag, it also participates in the metallurgical reaction with the molten metal. Thereby affecting the chemical composition of the weld metal.

In a word, the above are the more common pressure vessel welding methods for pressure vessels. With the help of different welding techniques, we can meet the technical requirements of different pressure vessels welding. In order to better guarantee the quality and improve the safety factor.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines. Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries, please fill and submit the following form, we will reply as soon as possible.

https://www.industrialautoclaves.com/.../composite.../

Main Manufacturing Process of Industrial Pressure Vessel

 About manufacturing process of industrial pressure vessel( also called pressure vessel) mainly includes the preparation of raw materials. Such as marking, blanking, forming, welding, non-destructive testing, hydraulic testing, etc.

1.Preparation of Raw Materials

  Steel must be pretreated before marking. Pretreatment of steel refers to the purification, orthopedic and protective primer of steel plates pipes and section steels.

  Purification treatment is mainly to steel plate, pipe and section steel in the marking, blanking, welding processing. The steel after cutting, groove processing, forming, welding to remove the rust on the surface, oxide skin, oil and welding slag.

2.Marking

  Marking is the first process of pressure vessel manufacturing process. It is directly determines the dimensional accuracy. Also geometric shape accuracy of parts after forming. In addition it has a great influence on the subsequent group and welding process.

  The Marking is in the raw material or the initial processing of the blank on the marking line, processing line. All kinds of position line and inspection line. And mark (or write) the necessary signs and symbols. Usually, Marking process includes the parts of the unfolding, lofting and marking and other links. So the blank size should be determined before marking. Necessarily, the blank size is composed of the unfolded size of the part and various machining allowances.

3.Blanking

  First, Blanking is also called cutting. It refers to the process of separating the required blanks from the marked raw materials. Generally, Cutting methods include gas cutting and plasma cutting.

  Gas cutting is also called flame cutting, gas cutting belongs to thermal cutting, cutting requires a preheating flame. But only the flame can not achieve cutting. The key is to have high-speed pure oxygen flow.

  Plasma cutting uses high-temperature, high-speed plasma flame flow to fuse materials to form incisions. It belongs to high temperature melting cut in thermal cutting. It is not restricted by physical properties. Plasma cutting can cut metals and non-metals. But it is mainly used to cut stainless steel, aluminum, copper, nickel and their alloys.

4.The Forming

The forming of shell

  Shell is composed of several shell welded by circumferential welds. As well, the shell is welded by plate rolling (rolling) and longitudinal welds. It is the basic manufacturing method of shell. Next, the principle of rolling bending is to use a rolling machine to impose continuous. And uniform plastic bending of the steel plate to obtain a cylindrical surface.

Forming of Dished Head

  There are three main forming methods of dished head: stamping, spinning and explosive forming. At present, the common methods are stamping and spinning.

5.Welding

  Welding is the process by which the atoms are joined together to form a permanent joint by heating, pressurizing, or both. Fusion welding is a processing method in which the workpiece to be welded is locally heated to melt. Furthermore condensed to form a weld to connect the components together. Including arc welding, gas welding, electroslag welding, electron beam welding, laser welding, etc. In fact, Fusion welding is a widely used welding method. Most low-carbon steels and alloy steels are welded by fusion welding.

6.Nondestructive Testing

  Nondestructive testing (NDT or NDE) is a technology that detects defects, chemical and physical parameters of materials. Parts and equipment using ray, ultrasonic, infrared, electromagnetic and other principles. Another technologies combined with instruments without damaging. Or affecting the performance of the object to be tested. For example, Radiographic examination (RT), ultrasonic examination (UT), magnetic particle examination (MT) and liquid penetration examination (PT) are commonly used.

7.Hydrostatic Test

  Hydrostatic test (overpressure pressure test) is one of the important means of industrial pressure vessel inspection. By filling and pressurizing the industrial pressure vessel. The shell, dished head, accessories of the pressure vessel are inspected during and after pressurization. Whether the material of the pressure component and the weld are infiltrated and cracked. And whether plastic deformation is visible to the naked eye under the test pressure. In brief, main purpose is to check the compressive strength of the pressure parts. Effectively, it can avoid accidents caused by the damage of the pressure parts. Defects that are not easy to be found in operation. Check the pressure parts and their welds, expansion joints. And sealing surface(manhole,check hole, hand hole) flanges (or bolt) and other joints are tight, and whether there is leakage.

About STRENGTH Equipments

  Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines. Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

https://www.industrialautoclaves.com/.../composite.../

How to Operate the Pressure Vessel Hydraulic Test?

 The pressure vessel hydraulic test shall be presided over by the person in charge of the maintenance. The operation person shall be responsible for the operation. And the maintenance person shall be responsible for the inspection. 

Hydraulic Test Process

  First of all, the pressure vessel hydraulic test plug the inlet and outlet of the main equipment with blind plates or flange covers. Then use the electric pump to fill the water. After the water is filled to the visible water level of the steam drum. Furthermore, the superheater will be used to the second stage. And desuperheating water pipe is reversed and filled with water. Next, the water supply speed is not less than 2 hours in summer and 4 hours in winter. When the water temperature is close to the temperature of the pressure vessel wall. So the water supply speed can be appropriately increased.

Hydraulic test of the pressure vessel of the reheating system

In addition, injecting water to the reheating system to increase the pressure through the accidental spray of water from the reheater. The pressure should be increased slowly.

When the pressure is below 1MPa, the pressure rise speed is less than or equal to 0.1MPa/min. When it reaches 1MPa, stop and check. And keep the pressure rising for 15 minutes after the pressure is stabilized. The pressure rise speed is less than or equal to 0.3MPa/min. After rising to the working pressure of 4.4MPa stop the pressure increase. And keep the pressure stable. And conduct an overall inspection of the reheater system. After there is no abnormality, increase the pressure to the hydraulic test pressure of 6.6MPa. And keep it under this pressure for 5 minutes. After the hydraulic test is qualified. Then the pressure will be reduced to work pressure, water discharge and pressure relief. The pressure reduction rate is 0.3MPa/min.

When water continuously overflows from each air door, close each air release door according to the direction of water flow. And then increase the pressure. During the water supply process, closely monitor the changes in the water level. And check whether the components are leaking. And whether the expansion of the heated surface is normal. At last, if an abnormality is found. The cause should be immediately identified and eliminated.

Main Steam The Pressure Vessel System Water Pressure Test

Using the superheater desuperheating water regulating door to increase the pressure. Because the pressure increase should be slow. The pressure increase speed below 9.8MPa is ≤0.3MPa/min. When the pressure rises to 2MPa, the pressure increase is suspended for inspection. If the pressure is abnormal. Continue to increase the pressure after 15 minutes of stabilization.

When the pressure is increased to 5.88MPa, pause the pressure increase and observe the pressure change. If there is no abnormality, continue to increase the pressure to 9.8MPa. And then increase the pressure to ≤0.2MPa/min. At 11.77MPa. Next the pressure increase is suspended, and check for abnormalities. After there is no abnormality. Continue to increase the pressure to the working pressure of the pressure vessel to 19.79MPa. Then close the water inlet valve after 5 minutes of stabilization. Record the pressure drop within 5 minutes after the water inlet valve is closed. And notify the maintenance for overall inspection.

Overpressure Test

If the overpressure test is performed, the steam drum water level gauge should be output. After the check is normal, continue to increase the pressure to the overpressure test pressure of 29.69MPa at the same speed. Then hold for 30 minutes. And release the pressure at a rate of 0.3MPa/min with a trap .When the working pressure of the pressure vessel  is reached. Close the trap, maintain the normal test pressure. And conduct an overall inspection.

After the water pressure test is over, use a continuous drain or trap to release the pressure at a rate of 0.3 MPa/min. When the pressure drops to 0.2MPa, open the air gates and traps to drain the water. If the pressure vessel is ready to be put into operation and the water quality is qualified. It can be put to the ignition water level. Otherwise all the water should be drained and refilled. The superheater, main steam pipe, and reheater should drain the water collection. Notify the maintenance to lift the safety full door pressing device. If the pressure vessel is not put into operation within a short period of time, close the pressure relief door. And perform maintenance in accordance with the shutdown maintenance regulations.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines.  Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service.  ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.

How to Avoid Composite Autoclave Machine Accidents?

Composite autoclave machine (also called carbon fiber autoclave) is a kind of pressure vessel equipment. Users should pay special attention to the safety of related pressure vessel operation during its use, except the safety of conventional equipment. The main manifestation is the explosion or explosion caused by the of hyperpressure inside the autoclave machine or leakage accidents, so it is necessary to formulate corresponding precautions in order to safely carry out the production work of autoclave machine curing. There are related autoclave machine explosions and leaks in the past. Today, we will briefly discuss how to avoid autoclave machine accidents.

1. The operator must strictly abide by the technological process and labor discipline, and operate in strictly accordance with the safety technical operating procedures. Not only the operators, but also the management personnel of the enterprise must understand the basic knowledge of autoclave machine, related laws and regulations. The operators of autoclave machine must be trained and certified. The safety interlock alarm device can not changed on the autoclave machine at will. It is necessary to purchase composite autoclave machine products with qualifications for designing and manufacturing autoclave machine .

2. Before production, the autoclave machine must be carefully inspected and the obstacles must be removed in the autoclave machine to make sure that the tank cover is fastened during each production, and the screws should be complete and intact. The auxiliary instruments, signals, pressure gauges, and safety valves of the equipment should be checked regularly. Lubricate mechanical bearings as required. It is strictly forbidden to continue working when the autoclave machine is leaking, the pressure gauges and the safety valve are malfunctioning, or other abnormal conditions. It will need strictly control the feeding amount, speed, sequence, temperature, pressure, etc., to prevent the temperature and pressure in the tank from rising sharply and over-temperature and differential pressure.

3. When the material enters into and exitsoutthe autoclave machine, the bridge rails should be laid flat and straight, the trolley should be pulled and steadily pushed over the rails. Rapid collisions are not allowed to prevent dumping and injury. After the working process of thermo-compression curing is completed, it is necessary to confirm that there is no residual pressure before opening the middle and inlet seals, otherwise it is strictly prohibited to open the tank. Tighten the nuts evenly when the tank seamed, and there should be no air leakage. The air intake should be slow and take attention to the reading of the pressure gauge, also pay attention to whether if the pressure gauge fails. During work, if there is a strong leak in pipelines, valves, instruments and tanks should close the valve immediately and open the exhaust valve, report for repair in time.

4. When people at work, you must concentrate and always pay attention to the operation of the equipment and the surrounding safety. When autoclave machine is working, the operator should patrol the side of the autoclave machine.It is forbidden to stand in front of the tank cover, behind the machine head and the joints of the tank cover. It will also need pay attention to the valve and pipe joints to prevent the high temperature and high pressure in the tank from rushing out and hurting people. It is not allowed to leave the post while working. When filling and unloading cans, you must cooperate closely with the operators and follow the safety operation regulations.

5. At the end of the work, you should turn off the power switch, check whether all buttons and handles are in the zero position. It must close all inlet valves of the autoclave machine and open the exhaust valve. Carefully make process records and handover records. Resting and drying clothes in the autoclave is prohibited. It is strictly forbidden to bake other items in an empty.

6. It should perform regular inspections to ensure the safe and effective use of autoclave machine, safety valves, pressure gauges, and quick-opening alarm devices. Prohibit flames, and ground them well to prevent static electricity.

About STRENGTH Equipments

Taian STRENGTH Equipments Co., Ltd is the professional pressure vessel designer, manufacturer and exporter dedicated in supplying finest quality industrial autoclave, storage tank and dish head products and solutions to worldwide customer over 20 years. We have over 80 talented research and development experts, 2 million square meters manufacturing factory and more than 50 sets large-scale manufacturing machines. Our annual industrial autoclave and storage tank output can reach over 300 sets, dished head output can reach over 3000 sets.

STRENGTH Equipments is not only manufacturing high quality industrial autoclaves, storage tanks and dished ends but also providing custom product design, fabrication and after-sale service. ODM, OEM are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.