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Application Of New Energy Saving Technology To Reduce Power Consumption In Textile Industry

2011/12/22 16:22:00 20

Energy Saving Technology In Textile Industry

Chinese cotton

Spin

The industry is now in the period of industrial restructuring. Most of the enterprises are upgrading the technology and equipment, speeding up the process of information and automation, improving product quality and improving the working environment of workers.

labour intensity

。

To this end, more and more auxiliary equipment has also been widely applied. These measures have increased the power consumption of enterprises and improved the difficulty of energy saving and emission reduction.

In response to the call for energy conservation and emission reduction, enterprises are adopting various kinds of

Conserve energy,reduce emissions

Measures and achieved certain results.

Analysis of the situation of national power supply and demand and economic operation released by China Electric Power Enterprise Federation in July

Forecast

The report shows that the national demand for electricity is generally strong, and the total consumption of the whole society is increasing rapidly. The growth rate of electricity consumption in the western, Eastern, central and northeast regions is 15.8%, 11.1%, 11.8% and 8.9% respectively, and the largest power gap in the country is around 30 million kilowatts.

Corresponding to the increase in electricity consumption is the shortage of power supply in some parts of the country and the larger electricity gap.

At the same time, the national policy of energy conservation and emission reduction is also gradually strengthening.

All of these will have a certain impact on the textile industry.

Large power consumption in spinning process

Through the investigation of enterprises, the Chinese cotton textile industry association found that the electricity consumption of enterprises in the industry is quite different.

The survey found that at present, the average electricity consumption per ton of yarn in spinning enterprises is 21 kW. The average electricity consumption is 1671 kwh. From the chart below, we can see that more than 60% of the enterprises are in the 1300~1800 kilowatt hour.

Fig. 90 percent off distribution of electricity in 21 British cotton mills

In the survey of production electricity consumption, it can be clearly found that the proportion of two auxiliary production electricity consumption of air conditioning and dust filtration has increased obviously, which is related to upgrading and upgrading of air-conditioning by most enterprises. It is expected that this proportion will be further improved in the future.

The proportion of electricity consumption in spinning process has dropped from about 60% to about 49% now.

Although the popularization and application of new technologies such as compact spinning and Takesetsu Sa power consumption increased the power consumption of spinning process, but because of the rapid increase of electricity consumption in other parts, such as the wide application of automatic winding machine in post spinning process, the power consumption increased, and the proportion of electricity consumption in spinning process decreased.

Fig. 2 proportion of electricity consumption in cotton spinning enterprises

Technological pformation is an important means.

Technological pformation can not only improve the quality of products, enrich product categories, but also become an important means of energy conservation and consumption reduction.

A reasonable motor is chosen to match the capacity of the motor with the load of the equipment or to install the electrostatic capacitance.

The frequency conversion of the motor is improved. At the same time, a new type of high efficiency motor can be selected, such as rare-earth permanent magnet motor, brushless converter motor and digital servo AC motor, so as to reduce losses and improve efficiency.

The cooling way of motor can adopt multi machine water cooling or oil cooling technology, on the basis of reducing power consumption, in order to reduce the influence of motor heat dissipation on workshop temperature.

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Air conditioning system pformation.

Replace the old fan with the energy-saving fan of the new blade, add inverter to the motor in the air-conditioning system, improve the air supply system, etc., combine the air conditioning system with information technology, adjust the working state of the automatic air conditioner according to the workshop condition, and achieve the goal of energy saving according to the need.

Lighting system pformation.

According to the demand of production, we should choose the lighting form and illuminance value reasonably, choose the new energy-saving light source or new electronic ballast, pform the unreasonable lighting circuit, and consider the full application of natural light, and improve the efficiency of lighting system.

The air pressure system is retrofit to reduce energy consumption and make rational use of the heat generated by the air compressor.

High and low pressure can be supplied separately to reduce energy waste caused by high pressure gas supply.

The new energy saving equipment, such as new energy saving spindles and new roving flyers, is adopted.

In addition, there are effective measures such as pformer modification, distribution system filtering and power factor improvement, which can further reduce energy consumption.

Optimize process and reduce workload

The spinning process is optimized, the workload of each device is lighten. Under the premise of ensuring the quality of products, the speed of the motor is increased, the drafting ratio of spinning is increased, and the amount of spinning spindle is increased.

The operation mechanism of some auxiliary equipment is changed, and the outage time is reasonably set according to actual needs, and the work has been changed to intermittent work, such as spinning, blowing, suction and dust filter.

Reasonable arrangement of equipment to stop the plan, the maintenance time in the high price stage, and according to the situation of the product reasonable use of electricity.

Through a questionnaire survey of some enterprises, the China Cotton Textile Industry Association found that the main energy saving measures adopted by enterprises in China are frequency conversion, air conditioning system pformation, motor pformation, lighting system pformation, equipment replacement, peak load shifting and so on.

Equipment upgrade control electricity cost

At present, the textile industry is in the critical stage of industrial upgrading and industrial pfer. With the increase of new capacity, a large number of new devices have been adopted. These devices have improved the production efficiency of enterprises and reduced the power consumption per unit output, such as the use of multiple spindles and long vehicles.

At the same time, the acceleration of integration of information technology and industrialization will enable enterprises to grasp the state of power consumption and control the cost of electricity more conveniently.

In addition, we should strengthen our understanding of the work of saving electricity, raise the overall awareness of saving electricity, and attach importance to energy conservation as well as quality.

As a part of the daily management of enterprises, energy conservation work is set up as a specialized organization to co-ordinate the management of enterprises' electricity saving work. According to the actual situation of the enterprise, the energy conservation system is perfected, and the system can be fully implemented.

To fully understand the power consumption structure of the enterprise, we can accurately grasp the data, rationally analyze the power consumption structure of the enterprise, refine the index, reasonably set up the electricity saving target, and make precise assessment.

Increase energy input, according to the situation of enterprises according to the principle of "first easy, difficult, slow first and slow ahead", make overall arrangements and take corresponding energy-saving measures.

Textile industry as one of the ten high energy consuming industries in the country, how to effectively reduce energy consumption and reduce production energy consumption of 10000 yuan added value will be a problem that the whole industry will face for a long time.

The majority of enterprises should pay more attention to energy saving and emission reduction, and take effective measures to reduce the impact of energy saving and emission reduction policies on the normal production of enterprises.