Deutz FAW Dachai energy-saving effect

Deutz FAW (Dalian) Diesel Engine Co., Ltd. attaches great importance to energy-saving work. By adopting advanced equipment and technologies, it implements modern management methods and methods. From January to May 2009, energy saving equivalent to RMB 3.884 million was saved. Consumption is equivalent to 206.3 tons of standard coal.

Deutz FAW Dachai is divided into a new factory area and an old factory area. From the feasibility study report at the beginning of construction, the new plant will add energy-saving chapters, introduce energy-saving equipment and new energy-saving technologies, and then run the management in the later stages, highlight the concept of energy conservation everywhere, and always take energy conservation as an important task. For example, in the water system, the pump adopts variable frequency operation control, the staff bath adopts water-saving foot valve and automatic temperature control system, invests in the construction of a new large-scale comprehensive sewage treatment station, and concentrates the production and domestic sewage treatment to achieve the discharge of medium water. The standard is fully used for green irrigation. In the power system, the introduction of energy-saving dry-type transformers and the installation of reactive power compensation devices have not only improved the power transmission power factor, but also greatly reduced the power consumption. In the steam system, a condensate return pump is installed to recycle the condensed water produced in the production process and used for bathing by the staff baths; the valve adopts a plunger valve to fundamentally eliminate the steam leakage. For the installation of the main kinetic energy equipment-air compressor, fully consider the energy-saving operation under different load conditions, adopt dynamic management during use, rationally allocate the number of equipment to operate according to the changes of the site load, and meet the on-site requirements. Reduce power consumption.

In the old factory area, a large number of new energy-saving equipment, new materials and new technologies have also been introduced, which have also achieved remarkable results. For example, air-cooled screw air compressors, condensate recovery, rare earth insulation materials, plunger valves, reactive power compensation devices, high-efficiency industrial lamps instead of high-pressure sodium lamps, and Grundfos pumps have achieved very good economic and social benefits.

In 2009, Deutz FAW-Dachai's energy-saving work mainly focused on two aspects: First, curing effective energy-saving management methods. If the function of the reactive power compensation device is exerted, the power factor of the system will be improved by timely regulating and putting into operation. Condensed water produced by heat exchangers for production and heating is recycled for production (washing machines) and living (baths) to save heat and tap water. Using the price difference between the peaks and the valleys, arrange the three metalworking cylinder lines and the metalworking cylinder head finishing line to avoid the peak running-in, adjust the reasonable running-in time, and reduce the power consumption. During the heating period, temperature control is implemented for the heating operation in the old factory area, and the flow and number of running units for the operation of the heating and air-conditioning unit in the new plant area are controlled to reduce heat consumption and power consumption. Strengthen the air compressor and chiller operation control, according to the actual amount of load on the scene, reasonable control of the number of boot, reduce power consumption.

The second is to control the operation of the main energy-consuming equipment in the second factory (new plant) to save electricity. Such as the production of chilled water system equipment, in the rest or holiday time, according to the actual needs of regulation. For the operation of the camshaft tempering furnace, the company has formulated energy-saving operation and operation requirements, adopted a centralized organization of production methods, and provided that after the first inspection of the quenching machine is completed daily, the power of the furnace should be turned on again. This will save electricity for 60kwh every hour for one hour. At the same time, when the camshaft is straightened in the tempering furnace using the hot straightening method, the cooling fan at the outlet is closed. For the camshaft gear assembly station, only one 30KW furnace is turned on at work every day, and another furnace is turned on at 11 o'clock so that electricity can be saved for 30kwh per day. For the operation of the drying room in the test section, Pinggu Electric was used as far as possible to reduce the cost of electricity. For the operation of the cylinder head production line, according to the production task, the reasonable organization of the work section is to concentrate on full-load production. One shift system can be completed without arranging two shifts, and one work day can be completed without two. If the operation of the cylinder head section cleaning machine is heated by electricity without steam heating, it is necessary to report the section management personnel in advance, otherwise the relevant personnel shall be held accountable. Implementing centralized cleaning requires that the workpiece at the front of the cleaning machine accumulates more than 15 pieces to begin cleaning.

Deutz FAW Dachai has achieved better results in energy conservation by further strengthening management, implementing reasonable operational controls, adopting optimized operation methods, tapping potentials.

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