空压机主机大修，空压机维修保养，空压机机头大修，活塞式空压机维修，螺杆空压机维修保养，主机大修，机头维修保养；

维修保养以下品牌空压机： 瑞典Atlas.Copco（阿特拉斯·科普柯），美国SULLAIR（寿力）、Ingersoll-Rand（英格索兰）、登福GD(嘉顿丹佛) GardnerDenver、英国CompAir（康普艾）、台湾FS（复盛）、日本HITACHI（日立）、KOBELCO（神钢）、德国BOGE（伯格）、KAESER（凯撒）、霸尔向阳、柳州LiUTEHCH（富达）、昆西、福斯爱尔、博莱特、施耐德日盛、优耐特斯、正力精工、斯可络、凌格风、锡压、飞和、维肯、艾能、浪潮、开山、捷豹、佳力士、聚才、德斯兰、申行健、汉钟、红五环。。。

螺杆空压机主机的构造：

喷油双螺杆空压机主机（又称机头）的结构通常是由一对相互啮合的螺杆、主机壳体、高压端及端盖和低压端及端盖组成。螺杆式空压机主机正常运行时，螺杆与螺杆之间、螺杆与主机壳体及高低压端面之间都是不接触的，主要由以下三个方面的条件来保证：

1、螺杆、主机壳体和高低压端的加工都是高精度的。该精度保证了主机装配后，螺杆与螺杆之间、螺杆与主机壳体之间有适当间隙，该间隙大小已经充分考虑到了主机高温运行时螺杆及壳体会发生形变的问题；

2、螺杆与高低压端面的间隙大小是根据技术要求在进行螺杆装配时保证的。主机运行时螺杆没有轴向窜动，而螺杆的径向允许位移则是由高精度的轴承来保证的；

3、主机正常运行时润滑油形成的油膜使螺杆与螺杆之间不直接接触。螺杆空压机主机需要进行大修的原因：随着空压机运行时间的推移，主机各个轴承必然会发生磨损，从而导致螺杆产生轴向窜动及径向位移增大，该变化会让螺杆与螺杆之间、螺杆与主机壳体及前后端面之间的间隙发生变化。这些间隙变化在轴承寿命期限内是正常的、允许的，而由此产生的空压机产气量衰减及主电机负荷增加也是正常的、允许的。随着机组运行时间接近主机大修期，主机轴承的寿命逐渐趋进于最大允许时限。此时螺杆轴向和径向窜动量逐渐趋进于最大设计允许值，该变化会让螺杆与螺杆之间、螺杆与主机壳体及前后端面之间的间隙发生较大的变化。此时主机运行虽然仍然是安全的，但是已经到了必须考虑计划安排对主机进行大修的时候了。因为一旦机组运行时间越过大修期后，轴承磨损及主机配合间隙就到达了主机技术条件允许的极限值，此时的主机就处于不安全的运行状态，就随时有可能发生如下严重后果：

1、主机运行负荷增大，对主电机及电器系统造成危害主机螺杆之间、螺杆与前后端面之间、螺杆与主机壳体之间可能出现的的强烈磨擦会使得主机运行负荷急剧增加，另外严重磨损的轴承的运转负荷也是很大的。如此一来，电机就会处

于超负荷的工作状态，会严重地危及电机的安全运行。情况严重的话，如果空压机组的电器保护装置反应不灵敏或失效，则还可能导致电机烧毁。

2、空压机排气量会发生较大幅度的衰减。主机配合间隙增大会导致主机效率严重降低，即空压机排气量产生较大幅度的衰减，对用气单位的正常生产造成一定的影响。特别是对那些空压机排气量配置富裕量较小的用户，由于空压机排气量衰减，在用气系统用气量相对稳定的情况下，管网压缩空气压力就会降低很多，就可能出现用气系统设备等不能正常工作或根本无法工作，从而出现影响单位正常生产或导致暂时性的停产，给企业带来损失。

3、最严重的后果就是出现主机的突然“抱死”。一旦出现这样的情况，如果电器保护系统反应不及时或保护失效，同样可能给主电机和电器系统带来严重的损害。

对于主机“抱死”的处理，一方面大修的维修费用会比正常大修要昂贵许多，另一方面由于主机元件会有损伤，因此修复后主机的综合性能也会较正常大修的主机要差一些。而如果是主机损伤严重程度已经到了不具修复价值或根本无法修复的，则只能是报废掉更换新主机，直接损失则是最大的。因为新购主机的费用通常是购买整台空压机组费用的三分之一左右，远远高于正常情况下的主机大修费用，而正常情况下大修合格的主机的综合技术性能和新主机却是非常相近的！

Air compressor main engine overhaul, air compressor maintenance, air compressor head overhaul, piston air compressor repair, screw air compressor repair, the main engine overhaul, head repair and maintenance;

Repair and maintenance of the brand air compressor: Sweden Atlas.Copco (Atlas Copco), America SULLAIR (Shou Li), Ingersoll-Rand (Ingersoll Rand), f GD (GardnerDenver, Denver garden) British CompAir (Kang Puai), Taiwan FS (Fu Sheng), Japan HITACHI (Hitachi), KOBELCO (Kobelco), Germany BOGE (Berg), KAESER (Kaiser, PA, Xiangyang, Liuzhou) LiUTEHCH (fidelity), Quincy, Pollet, Schneider, Fuchs Ireland, Yuu Knight J, Risheng Ganey, scrow, Ling Gefeng, tin, and fly, Ai Neng, wave, pioneer, vicken, Jaguar, gairs, Jucai, Hanbell, hongwuhuan, Shen Hangjian, lan... Welcome to come from all walks of life to inquire, negotiate! Details to the company to obtain. We will be first-class products, reasonable prices, quality service and you work closely, and seek common development! Enterprise official website: www.senpull.cn domestic hotline: 400-6969-728 technical advice: 021-51602627 51602681

[imported compressorinternational asiadistribution center] [Chinese air compressor spare parts marketing center]

Construction of screw air compressor host:

The structure of the main engine (also known as the die) of the injection twin screw air compressor is usually composed of a pair of mutually engaging screws, a host shell, a high pressure end and a low pressure end and a cover.. The normal operation of the screw air compressor host, the screw and screw, screw with the host shell and the high and low pressure end face are not contact, the main condition of the following three aspects to ensure:

1, the screw, the host shell and the high and low pressure side of the processing are high-precision. The precision to ensure the host after assembly, between the screw and screw and screw and the casing of the host computer is clearance fit, the gap size has been fully taken into account the host temperature operation when the screw and shell experience of deformation;

2. The clearance between the screw and the high and low pressure end face is guaranteed by the technology when the screw is assembled.. The screw did not move axially while the main engine was running, while the radial displacement of the screw was ensured by the high precision of the bearing.;

3. The oil film formed when the main engine is running, the oil film of the lubricating oil makes the contact between the screw and the screw.. Screw air compressor mainframe needs a major overhaul of the reason: with the passage of the air compressor running time, each bearing host will wear, leading screw to produce axial displacement and radial displacement increases, the changes will make the gap between the screw and the screw, screw and the casing of the host computer and the front and the rear end surface changes. These gap changes are normal and permissible in the bearing life time, and the air compressor gas output attenuation and the main motor load increase are normal and allowed.. With the running time of the unit close to the main engine overhaul, the life of the main engine bearing gradually tends to maximum allowable time limit.. This screw axial and radial runout gradually hasten is in to the design maximum allowable value, the change will make clearance between the screw and the screw, screw and the casing of the host computer and the front and the rear end surface between the larger changes in the. Although the host is still safe to run, but it has arrived must consider the plan to host the overhaul of the host. Because once the unit running time over the overhaul period, the abrasion of the bearing and the host with the gap on the arrival of the host technology allows the limit value, at this time, the host in unsafe operation state, at any time may occur following the serious consequences:

1, the main operation load increases, of the main motor and electrical system caused harm host between the screw, screw and the front and the rear end surface, between the screw and the casing of the host computer can occur between the strong friction will make host running load increased dramatically and also serious wear of bearing turn load is great. As a result, the motor will be located

The working condition of Yu Chao load, can seriously endanger the safe operation of motor.. If the air compressor is not sensitive or ineffective, it may cause the motor burned down..

2, air compressor exhaust will occur a substantial attenuation. The increase of the host with the gap can cause the main engine efficiency to be reduced seriously, that is, the air compressor"s exhaust gas generated a substantial amount of attenuation, which has certain effect on the normal production of gas unit.. Especially for those air compressor exhaust configuration rich volume smaller users, decay due to the displacement compressor, in the gas system with gas is relatively stable network compression air pressure will reduce a lot of, may occur with gas system equipment does not work or simply can not work, thus appears to affect the normal production of units or lead to temporary shutdowns, cause losses to the enterprise.

3, the most serious consequence is the emergence of the host suddenly "locking". Once such a situation occurs, if the electrical protection system response is not timely or protection failure, the same may cause serious damage to the main motor and electrical system.

To host the "locking" and an overhaul of the maintenance costs will than normal overhaul are much more expensive, on the other hand due to host components will be damaged, so repair after the comprehensive performance of host will than normal overhaul of the host to some poor. And if the host damage severity has been to the extent that the repair value or simply can not be repaired, it can only be scrapped to replace the new host, the direct loss is the biggest. Because the cost of purchase of new host is usually buy the whole air pressure unit costs of the three points about one, much higher than the normal host overhaul costs, and technical performance of normal overhaul qualified host and host is very similar.