Diaphragm compressor air cylinder structure
A technology for diaphragm compressors and cylinders, applied in the field of diaphragm compressors, can solve the problems of low utilization rate of materials, heavy cylinders, increased production costs, etc., and achieve the effects of simple maintenance and operation and easy assembly.
Pending Publication Date: 2021-12-31
佛山市天然气高压管网有限公司 +2
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Problems solved by technology
[0003] At present, new high-pressure or ultra-high-pressure large-flow diaphragm compressors require that the volume of the diaphragm cavity of the working cylinder be larger and larger (with the same diaphragm volume, increasing the working pressure will inevitably increase the pre-tightening force of the fastening bolts), and the required pre-tightening The force is getting bigger and bigger (the diameter of the fastening bolts is also getting thicker and thicker). In order to arrange these thick bolts, it is necessary to increase the outer diameter of the cylinder block and cylinder head, and the effective diameter of the membrane cavity is the same as the working diameter of the fastening bolts. The ratio is also getting larger, the cylinder of the diaphragm compressor is also more bulky, and the material utilization rate is relatively low, which increases the production cost
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Embodiment Construction
[0018] Below in conjunction with accompanying drawing, the present invention is described in detail:
[0019] Such as figure 1 , 2 , 3, a diaphragm compressor cylinder structure, including a cylinder body 1, a cylinder head 2, a diaphragm 3 arranged between the cylinder body 1 and the cylinder head 2, between the upper end of the cylinder body 1 and the lower end of the cylinder head 2 There is a prestressed pressure plate 4 between them, the prestressed pressure plate 4 wraps the diaphragm 3, the upper end of the cylinder head 2 is provided with a threaded pressure plate 6, and the side ends of the threaded pressure plate 6, the cylinder head 2, the cylinder body 1, and the prestressed pressure plate 4 are provided with The threaded jacket 7, several radial jacking screws 5 pass through the threaded jacket 7 and vertically lean against the prestressed pressure plate 4.
[0020] Threaded pressure plate 6 is provided with a jacking screw hole, and axial jacking screw 8 passes...
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The invention provides a diaphragm compressor air cylinder structure. The diaphragm compressor air cylinder structure comprises a cylinder body, a cylinder cover and a diaphragm arranged between the cylinder body and the cylinder cover, a prestress pressing plate is arranged between the upper end of the cylinder body and the lower end of the cylinder cover and wraps the diaphragm, a threaded pressing plate is arranged at the upper end of the cylinder cover, threaded outer sleeves are arranged at the side ends of the threaded pressing plate, the cylinder cover, the cylinder body and the prestress pressing plate, and a plurality of radial jackscrews penetrate through the threaded outer sleeves and vertically abut against the prestress pressing plate; and the prestress pressing plate is arranged, the radial jackscrews are arranged on the vertical face of the prestress pressing plate, and radial prestress force is increased on the basis of single axial pretightening force of an original air cylinder, so that the sealing effect and the overall fastening effect of the cylinder body, the diaphragm and the cylinder cover are improved, and the high cost caused by increasing the size of a fastening bolt in order to meet the working requirements of the ultrahigh-pressure large-flow diaphragm compressor is also avoided.
Description
technical field [0001] The invention relates to the technical field of diaphragm compressors, in particular to a diaphragm compressor cylinder structure. Background technique [0002] Diaphragm compressor is a positive displacement compressor. Due to its structural characteristics, it has two characteristics: large compression ratio and good sealing performance. This is where the vitality of diaphragm compressor lies. Its main working principle is: the driving mechanism drives the piston or plunger to reciprocate, and the piston or plunger pushes the oil in the cylinder (the oil is not compressible) to drive the diaphragm to compress the gas, and the volume of the gas in the membrane cavity It has been changed, and the purpose of gas compression is realized with the cooperation of the suction and exhaust valves. [0003] At present, new high-pressure or ultra-high-pressure large-flow diaphragm compressors require that the volume of the diaphragm cavity of the working cylind...
Claims
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IPC IPC(8): F04B39/12F04B39/14F04B39/00F04B45/053
CPCF04B39/122F04B39/125F04B39/14F04B39/00F04B45/0533
Inventor 黄津鹄尹祥郑权明
Owner 佛山市天然气高压管网有限公司