The application of Siemens motor in a gas company
The main business of a gas service company is on-site gas supply service and retail gas distribution, specializing in the production of industrial gas and some special gases such as oxygen, nitrogen and argon; it also provides feasibility studies, engineering design, equipment procurement, investment, operation, Maintain services such as gas supply equipment. Its main users are steel, chemical, glass, non-ferrous metals, electronics and energy industries.
The company has invested in the construction of nearly 50 sets of air separation in China. The maximum capacity of a single set of air separation is 65,000 Nm3/h, and the total capacity of air separation (oxygen) is 120 standard square meters per hour. The total liquid oxygen, liquid nitrogen and liquid argon reserves are available. The amount exceeds tens of thousands of cubic meters.
Air separation equipment background
The air separation plant is a set of industrial equipment used to separate the components of the air to produce oxygen, nitrogen and argon. The main air separation process includes: conventional air pressurization, molecular sieve adsorption purification, turbo expander refrigeration, external compression, full distillation, hydrogen-free argon-free process
The main components of the air separation include: raw air compressor, air pre-cooling system, molecular sieve purification system, turbo expansion unit, distillation tower system, and five parts.
The synchronous motor has high utilization rate and high power factor, and is mainly used in air compressors and oxygen compressors, which require constant speed and high power. Generally, motors of 10 MW or more are synchronous motors.
Siemens motor background
Siemens motors cover almost all applications in the industrial sector, including low voltage AC motors, motors for motion control applications, DC motors and high voltage motors. With its 125 years of experience in the field of motor manufacturing, its motors have become synonymous with reliability, energy efficiency, responsiveness and precision. The motor has high efficiency, compact structure, small installation space and easy installation. A one-stop, more integrated drive solution is available to help users save money.
Although the gas service company purchases about 200 million yuan per year, the order quantity for purchasing motors from Siemens before 2009 is zero. In order to achieve breakthroughs, Siemens (China) Co., Ltd. Siemens Drive Technology Group's large transmission department (LD) has done a lot of work, achieving three breakthroughs in three years.
Seize the opportunity, zero breakthrough
Prior to 2009, Siemens motors were only used in the form of original equipment manufacturers (OEMs) for sale, and a small number of them were used in the gas service company; however, the high reliability of Siemens motors, reflecting the speed and accuracy, has been recognized by the company. In 2009, due to the motor design change of the motor supplier, the motor product used by the gas service company, the overall motor solution must be modified accordingly, creating an opportunity for Siemens motor entry.
LD made full use of this motor transformation opportunity. It is recommended that the company decide to replace the product and replace the solution. You can use this program to update and select products, solutions and suppliers that are more suitable for Yingde Gas. The Siemens motor has high efficiency, compact design, small footprint and the world's leading position; it is the most suitable motor for air separation equipment. LD signed five 3730 kW H-CompactPlus and 15 H-Compact series motors with the gas service company. LD pays full attention to the first cooperation. When the contract is not signed, the reservation order is used to ensure that the factory prepares raw materials and design materials in advance to ensure the delivery period of the product package. After the contract is signed, special channels are provided to quickly respond to user needs. In terms of delivery time, the price maintains a competitive advantage and meets the needs of users to the utmost extent.
Since 2010, the gas service company has used Siemens' motors of 10 MW or less on a large scale.
Quality service, breakthrough in high-power motors
10 MW of power is an important indicator in motor selection. Above this power is a synchronous motor. After selecting a manufacturer's synchronous motor, it is difficult for the user to change the supplier.
When selecting a motor, the factors that the user considers include: price, delivery time, after-sales service, and user familiarity with the motor, awareness, and so on. The gas service company now uses a maximum generator power of 28 megawatts, and the 28 megawatt motor marks a complete breakthrough for Siemens Motors in the company. Siemens 10 MW motor not only wins the trust of users in terms of product performance and reliability, but also firmly grasps the user's heart in service. In terms of product price, delivery time, after-sales service and user familiarity with Siemens motors, recognition, Siemens has an advantage. LD is negotiating with the gas service company for the sale of 28 MW motor. I believe that it will be comprehensive in the future. breakthrough.
