Eight-line symmetrical balancing type large reciprocating compressor
A technology of symmetrical balance and compressor, which is applied in the direction of liquid variable-capacity machinery, mechanical equipment, variable-capacity pump components, etc., can solve the problems of difficult to guarantee the processing quality of large-sized workpieces, expensive materials, and inconvenient maintenance, etc., to achieve Improve the processing quality and the convenience of maintenance, make full use of the strength, and facilitate the effect of cooling and maintenance
Active Publication Date: 2011-09-07
宝鸡市博磊化工机械有限公司
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Problems solved by technology
In addition, the crankshaft of a large reciprocating compressor is too long, the forging blank weighs more than 8 tons, the material cost is very expensive, and the processing quality of large-sized workpieces is difficult to guarantee, and maintenance is inconvenient
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[0016] Such as figure 1 As shown, the present invention is a reciprocating compressor with eight rows of cylinders. The four rows of cylinders I, II, III, IV and their corresponding crankshafts 2 of the compressor are placed on one side of the drive motor 3; the other four rows of cylinders V , VI, VII, VIII and their corresponding crankshaft 4 are placed on the other side of the drive motor 3 . On one side of the drive motor 3, the crank throws corresponding to the cylinders of the I and II rows are in a plane, and this plane is perpendicular to the crank throws corresponding to the cylinders of the III and IV rows. On the other side of the drive motor 3, the crank throws corresponding to the cylinders of the V and VI rows are in the same plane, and this plane is at an angle of 45° with the crank throws corresponding to the cylinders of the I and II rows. The crank throw planes corresponding to the VII and VIII row cylinders are perpendicular to the crank throw planes corres...
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The invention discloses an eight-line symmetrical balancing type large reciprocating compressor which comprises a driving motor, crankshafts and eight lines of air cylinders. The reciprocating compressor is characterized in that four lines of air cylinders are connected with one crankshaft and arranged on one side of the driving motor; the other four lines of air cylinders are connected with the other crankshaft and arranged on the other side of the driving motor; and the two crankshafts have the same structure. Cranks corresponding to the first and second lines of air cylinders are arranged in one plane and are vertical to the planes of cranks corresponding to the third and fourth lines of air cylinders. Cranks corresponding to the fifth and sixth lines of air cylinders are arranged in one plane and form an angle of 45 degrees with the planes of the cranks corresponding to the first and second lines of air cylinders. The planes of cranks corresponding to the seventh and eighth lines of air cylinders are vertical to the planes of the cranks corresponding to the fifth and sixth lines of air cylinders. The air cylinders corresponding to the cranks in the same plane form a moving line, and the moving line is provided with a cross head for connecting a connecting rod with a piston rod, wherein the side force of one connecting rod acting on the cross head always faces downwards, and the side force of the other connecting rod acting on the cross head always faces upwards.
Description
technical field [0001] The invention relates to a fluid machine, in particular to a multi-row symmetrical balanced large reciprocating compressor used in petrochemical and power engineering. Background technique [0002] Modern petrochemical and chemical industries are developing toward large-scale and modularization, which requires large multi-column reciprocating compressors to supply compressed raw gas; modern machinery manufacturing technology can also make the manufacture of large multi-column reciprocating compressors a reality. The eight-row large-scale reciprocating compressor jointly developed by Shanghai Compressor Factory and Dresser-Rand in the 1990s is the first eight-row compressor in China. It is used in the fertilizer plant of Nanjing Chemical Industry Company. Its structure is Eight rows of cylinders are symmetrically and balancedly arranged, sharing a 10-meter-long crankshaft, and the drive motor is placed at the end of the crankshaft. This arrangement of t...
Claims
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IPC IPC(8): F04B53/02F04B27/02F04B53/16F04B53/14
Inventor 吴四建余小玲王勇冯全科
Owner 宝鸡市博磊化工机械有限公司