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2022/05/09

The technical implementation of a mother-child canister.

The technical implementation of a mother-child canister.

The double-shell liquid nitrogen composite container includes a secondary tank, a piping system, an interlayer, a primary tank, a measurement and control system, safety accessories, and an external operating platform. The exterior of the liquid nitrogen composite container is painted and installed on a foundation platform. The double-shell tank is used for liquid nitrogen storage and supply, utilizing a pressure extrusion method for easy and reliable liquid discharge operations. Pressurized storage reduces emission losses during the storage period, and its manufacturing and installation are easier to achieve compared to spherical tanks, resulting in lower manufacturing and installation costs. Therefore, it offers higher safety, stability, and controllability. Now, let's explore the technical implementation of the double-shell tank!

The technical implementation of a mother-child canister.

2022/04/25

The method for making a mother-and-child jar.

The method for making a mother-and-child jar.

The pressure extrusion method for discharge liquid operation is simple and reliable. Storing under pressure reduces emission losses during the storage period, and manufacturing and installation are easier to achieve compared to spherical tanks, resulting in lower manufacturing and installation costs. Therefore, it has higher safety, stability, and controllability. Now, let's learn about the production method of the mother-child tank!

The method for making a mother-and-child jar.

2022/04/13

Introduction to the process of oxygen, nitrogen, and argon storage tanks.

Introduction to the process of oxygen, nitrogen, and argon storage tanks.

The total storage capacity of oxygen, nitrogen, and argon tanks is below 1000 meters, generally focusing on the storage management of multiple vacuum tanks. Currently, the largest single vacuum tank volume used by domestic enterprises in China is 150 cubic meters. The process for oxygen, nitrogen, and argon storage tanks can be relatively simple. Typically, a booster pump is used to pressurize the water tank, allowing the material to flow into the vaporizer under pressure. Without the use of advanced power technology equipment, energy consumption is low. Therefore, research shows that both domestic and international small LNG vaporization stations generally adopt the vacuum tank form.

Introduction to the process of oxygen, nitrogen, and argon storage tanks.

2022/03/31

Public Announcement of Clean Production Audit Acceptance Online

Public Announcement of Clean Production Audit Acceptance Online

We are now publicly announcing the results of our audit work and the compliance of pollutant emissions.

Public Announcement of Clean Production Audit Acceptance Online

2022/03/25

What anti-corrosion coating is used for oxygen, nitrogen, and argon storage tanks? How to maintain them?

What anti-corrosion coating is used for oxygen, nitrogen, and argon storage tanks? How to maintain them?

What kind of anti-corrosion coating is used for oxygen, nitrogen, and argon storage tanks? How should they be maintained? The reason oxygen, nitrogen, and argon storage tanks have anti-corrosion functions is that both the outer and inner sides of the tanks are coated with anti-corrosion paint. Different anti-corrosion coatings are selected for different parts. The inner and outer surfaces of the oxygen, nitrogen, and argon storage tanks usually use light-colored, non-carbon conductive anti-static anti-corrosion coatings, which solve the problem of pitting caused by the previously used carbon conductive coatings that did not last long.

What anti-corrosion coating is used for oxygen, nitrogen, and argon storage tanks? How to maintain them?

2022/03/10

What are the precautions for using oxygen, nitrogen, and argon storage tanks? What are the safety requirements?

What are the precautions for using oxygen, nitrogen, and argon storage tanks? What are the safety requirements?

What are the precautions for using oxygen, nitrogen, and argon storage tanks? What are the safety requirements? During the application of oxygen, nitrogen, and argon storage tanks, it is important to pay attention to the correct elements. This equipment should be equipped with necessary fire-fighting equipment for flammable gas and liquid storage tanks. During use, smoking, open flames, heating, and bringing ignition sources into the tank area are prohibited.

What are the precautions for using oxygen, nitrogen, and argon storage tanks? What are the safety requirements?

2022/02/23

What is the technology of LNG low-temperature storage tanks?

What is the technology of LNG low-temperature storage tanks?

LNG low-temperature storage tanks are divided into vacuum powder insulation type and atmospheric pressure powder insulation type. The use of powder insulation materials with low thermal conductivity, such as powders, fibers, or foam materials, reduces heat flow into the tank. One of the two forms is suitable for ordinary powder insulation at atmospheric pressure (accumulated insulation), with a thick insulation layer filled with dry nitrogen to maintain positive pressure, preventing moisture ingress and condensation, suitable for temperatures above the minimum liquid nitrogen temperature. The other type is vacuum powder insulation, which involves creating a vacuum in the space filled with powder to reduce gas heat transfer. The powder particles also weaken radiative heat transfer, enhancing the insulation effect.

What is the technology of LNG low-temperature storage tanks?

2022/02/15

What is the maintenance of LNG low-temperature storage tanks like?

What is the maintenance of LNG low-temperature storage tanks like?

The structure and types of LNG cryogenic storage tanks have seen significant development in recent years, as the market for cryogenic liquids has flourished. The sales of liquid oxygen, liquid argon, liquid nitrogen, liquid carbon dioxide, and LNG natural gas have increased dramatically, making the profitability of by-products from oxygen production very high. This has become an important component of imported products for steel enterprises. The production, storage, and transportation of cryogenic liquids rely heavily on insulated storage tanks, which are widely installed and utilized.

What is the maintenance of LNG low-temperature storage tanks like?

2022/02/08

Wishing a prosperous start to work - Nanyang Doer Gaseous Equipment Co., Ltd.

Wishing a prosperous start to work - Nanyang Doer Gaseous Equipment Co., Ltd.

Nanyang Duel Gas Equipment Co., Ltd. is mainly engaged in the research and development, design, manufacturing.

Wishing a prosperous start to work - Nanyang Doer Gaseous Equipment Co., Ltd.

2022/01/24

Liquefied natural gas storage tank

Liquefied natural gas storage tank

Nanyang Duel Gas Equipment Co., Ltd. is a joint-stock high-tech enterprise located in the picturesque area north of the Han River and south of the Funiu Mountains; it is the source of the South-to-North Water Diversion Project—Nanyang, the place where the military strategist Zhuge Liang cultivated his skills, and the famous battles of "Danyang" between the Qin and Chu states, as well as the Three Kingdoms story of "Three Visits to the Thatched Cottage," took place here. The company is conveniently close to the Lan-Nan Expressway, Hu-Shan Expressway, Nanyang Airport, and Nanyang High-Speed Railway Station, boasting a unique geographical location and very convenient transportation.

Liquefied natural gas storage tank

2022/01/24

Introduction to Nested Containers

Introduction to Nested Containers

Abstract: A mother tank refers to an inner tank composed of multiple (more than three) sub-tanks arranged in parallel to meet the requirements for large capacity storage of low-temperature liquids. Multiple sub-tanks are assembled in a large outer tank (the mother tank). The sub-tanks are usually vertical cylindrical in shape, while the outer tank is a vertical cylindrical shape with a flat bottom and dome top. Due to the large size and shape of the outer tank, it cannot withstand external pressure and cannot be vacuumed; therefore, the outer tank is a normal pressure tank.

Introduction to Nested Containers

2022/01/21

The essential difference between LNG single containment tanks and full containment tanks.

The essential difference between LNG single containment tanks and full containment tanks.

As the LNG industry develops, LNG storage is becoming larger and operating at normal pressure.

The essential difference between LNG single containment tanks and full containment tanks.

2022/01/20

Low-temperature storage tank

Low-temperature storage tank

Low-temperature storage tank The low-temperature storage tank is a vertical or horizontal double-layer vacuum insulated storage tank used for storing liquid oxygen, nitrogen, argon, carbon dioxide, and other media. The inner container is made of austenitic stainless steel; the outer container material is selected according to the user's region, following national regulations, and can be Q235-B, Q245R, or 345R. The interlayer between the inner and outer containers is filled with insulating materials such as perlite or aluminum foil, and is vacuumed. Structure Liquefied natural gas must be stored in low-temperature storage tanks, which typically consist of an inner tank and an outer tank, with insulating material filling the space in between. Inner tank The inner tank, also known as the "membrane tank," is a liquid-tight and flexible container made of thin low-temperature steel plates. It must transmit the hydraulic head to the insulation layer. The material used for the membrane must have the property of not becoming brittle under low-temperature conditions, as well as sufficient toughness and good processing performance. Common materials include nickel steel, stainless steel, or aluminum alloy.

Low-temperature storage tank

2022/01/10

The process flow of an LNG vaporization station!

The process flow of an LNG vaporization station!

The LNG transported by the tanker is unloaded at the unloading platform of the vaporization station, where the tanker's built-in booster is activated to pressurize the tanker. A pressure difference is created between the LNG tanker and the station's storage tank. Under the influence of this pressure difference, LNG is transferred into the low-temperature storage tank of the vaporization station through the unloading hose. The low-temperature storage tank at the station uses a tank booster to increase the tank pressure to the required value, and the LNG inside the tank flows into the LNG vaporizer through the liquid outlet pipeline.

The process flow of an LNG vaporization station!

2021/12/27

LNG storage tank manufacturers: The structure of LNG storage tanks!

LNG storage tank manufacturers: The structure of LNG storage tanks!

Regarding the cold insulation design of the upper part of the water tank, since the insulation material is covered on the ceiling of the inner tank, it does not need to bear the pressure from equipment and evaporated gases (only the weight of the insulation material itself). The insulation material needs to have low thermal conductivity and low density characteristics. The upper part of the low-temperature natural gas tank is made of glass wool, with an insulation thickness of 500mm, installed in five layers. The outer side of the glass wool is coated with aluminum foil to prevent expanded perlite and other impurities from entering the inner tank through gaps.

LNG storage tank manufacturers: The structure of LNG storage tanks!

2021/12/22

Warmly welcome the Jiaozuo Boiler Inspection Institute and the Special Equipment Association to visit Doer Company for guidance!

Warmly welcome the Jiaozuo Boiler Inspection Institute and the Special Equipment Association to visit Doer Company for guidance!

On December 20, 2021, experts and leaders from the Special Equipment Association visited our company - Nanyang Doer Gas Equipment Co., Ltd. at the Jiaozuo Boiler Inspection Branch. The company's executive director Zhang Jing, deputy general manager Liu Guofeng, and deputy director of the comprehensive office Feng Daqing warmly received the relevant personnel!

Warmly welcome the Jiaozuo Boiler Inspection Institute and the Special Equipment Association to visit Doer Company for guidance!

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Nanyang Dür Gas Equipment Co., Ltd.

Nanyang Doer Gas Equipment Co., Ltd. is a joint-stock high-tech enterprise. The company is located in the picturesque Han River in the south of Funiu; the source of the South-to-North Water Diversion Project-Nanyang, the place where the militarist Zhuge Liang worked, the famous Qin Chu "The Battle of Danyang" and the Three Kingdoms story "Three-visit the thatched Cottage" took place here...

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Company Address:

Economic 1st Road, Industrial Agglomeration Zone, Sheqi County, Nanyang City, Henan Province

Contact Phone:

+86-138-1275-6606

Company E-mail:

Main Products

Large atmospheric flat bottom storage tank

Vacuum cryogenic storage tank
Vaporizer

Pressure regulating skid
Mother and child tank

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