空壓機主機大修，空壓機維修保養(yǎng)，空壓機機頭大修，活塞式空壓機維修，螺桿空壓機維修保養(yǎng)，主機大修，機頭維修保養(yǎng)； 維修保養(yǎng)以下品牌空壓機： 瑞典Atlas.Copco（阿·科普柯），美國SULLAIR（壽力）、Ingersoll-Rand（英格索蘭）、登福GD(嘉頓丹佛) GardnerDenver、英國CompAir（康普艾）、中國臺灣FS（復盛）、日本HITACHI（日立）、KOBELCO（神鋼）、德國BOGE（伯格）、KAESER（凱撒）、霸爾向陽、柳州LiUTEHCH（富達）、昆西、福斯愛爾、博萊特、施耐德日盛、優(yōu)耐特斯、正力精工、斯可絡(luò)、凌格風、錫壓、飛和、維肯、艾能、浪潮、開山、捷豹、佳力士、聚才、德斯蘭、申行健、漢鐘、紅五環(huán) 螺桿空壓機主機的構(gòu)造： 噴油雙螺桿空壓機主機（又稱機頭）的結(jié)構(gòu)通常是由一對相互嚙合的螺桿、主機殼體、高壓端及端蓋和低壓端及端蓋組成。螺桿式空壓機主機正常運行時，螺桿與螺桿之間、螺桿與主機殼體及高低壓端面之間都是不接觸的，主要由以下三個方面的條件來保證： 1 、螺桿、主機殼體和高低壓端的加工都是高精度的。該精度保證了主機裝配后，螺桿與螺桿之間、螺桿與主機殼體之間有適當間隙，該間隙大小已經(jīng)充分考慮到了主機高溫運行時螺桿及殼體會發(fā)生形變的問題； 2 、螺桿與高低壓端面的間隙大小是根據(jù)技術(shù)要求在進行螺桿裝配時保證的。主機運行時螺桿沒有軸向竄動，而螺桿的徑向允許位移則是由高精度的軸承來保證的； 3 、主機正常運行時潤滑油形成的油膜使螺桿與螺桿之間不直接接觸。螺桿空壓機主機需要進行大修的原因：隨著空壓機運行時間的推移，主機各個軸承必然會發(fā)生磨損，從而導致螺桿產(chǎn)生軸向竄動及徑向位移增大，該變化會讓螺桿與螺桿之間、螺桿與主機殼體及前后端面之間的間隙發(fā)生變化。這些間隙變化在軸承壽命期限內(nèi)是正常的、允許的，而由此產(chǎn)生的空壓機產(chǎn)氣量衰減及主電機負荷增加也是正常的、允許的。隨著機組運行時間接近主機大修期，主機軸承的壽命逐漸趨進于允許時限。此時螺桿軸向和徑向竄動量逐漸趨進于設(shè)計允許值，該變化會讓螺桿與螺桿之間、螺桿與主機殼體及前后端面之間的間隙發(fā)生較大的變化。此時主機運行雖然仍然是安全的，但是已經(jīng)到了必須考慮計劃安排對主機進行大修的時候了。因為一旦機組運行時間越過大修期后，軸承磨損及主機配合間隙就到達了主機技術(shù)條件允許的極限值，此時的主機就處于不安全的運行狀態(tài)，就隨時有可能發(fā)生如下嚴重后果： 1 、主機運行負荷增大，對主電機及電器系統(tǒng)造成危害主機螺桿之間、螺桿與前后端面之間、螺桿與主機殼體之間可能出現(xiàn)的的強烈磨擦會使得主機運行負荷急劇增加，另外嚴重磨損的軸承的運轉(zhuǎn)負荷也是很大的。如此一來，電機就會處 于超負荷的工作狀態(tài)，會嚴重地危及電機的安全運行。情況嚴重的話，如果空壓機組的電器保護裝置反應(yīng)不靈敏或失效，則還可能導致電機燒毀。 2 、空壓機排氣量會發(fā)生較大幅度的衰減。主機配合間隙增大會導致主機效率嚴重降低，即空壓機排氣量產(chǎn)生較大幅度的衰減，對用氣單位的正常生產(chǎn)造成一定的影響。特別是對那些空壓機排氣量配置富裕量較小的用戶，由于空壓機排氣量衰減，在用氣系統(tǒng)用氣量相對穩(wěn)定的情況下，管網(wǎng)壓縮空氣壓力就會降低很多，就可能出現(xiàn)用氣系統(tǒng)設(shè)備等不能正常工作或根本無法工作，從而出現(xiàn)影響單位正常生產(chǎn)或?qū)е聲簳r性的停產(chǎn)，給企業(yè)帶來損失。 3 、最嚴重的后果就是出現(xiàn)主機的突然 “ 抱死 ” 。一旦出現(xiàn)這樣的情況，如果電器保護系統(tǒng)反應(yīng)不及時或保護失效，同樣可能給主電機和電器系統(tǒng)帶來嚴重的損害。 對于主機 “ 抱死 ” 的處理，一方面大修的維修費用會比正常大修要昂貴許多，另一方面由于主機元件會有損傷，因此修復后主機的綜合性能也會較正常大修的主機要差一些。而如果是主機損傷嚴重程度已經(jīng)到了不具修復價值或根本無法修復的，則只能是報廢掉更換新主機，直接損失則是的。因為新購主機的費用通常是購買整臺空壓機組費用的三分之一左右，遠遠高于正常情況下的主機大修費用，而正常情況下大修合格的主機的綜合技術(shù)性能和新主機卻是非常相近的！ 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: domestic hotline: technical advice: [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