Pump of constrictive machine, chemical industry is comprised by subsidiary engine of a lot of form a complete set, the important composition that subsidiary engine regards lead plane as is local should give height pay attention to, if subsidiary engine gives achievement lead plane,also cannot hold the post of normally Wu, consequently subsidiary engine also should control quality hard, do the routine inspection test of equipment.
Use device the quality of normal movement and subsidiary engine of form a complete set is inseparable, the quality that the quality that serves as total package to just do not want to control lead plane only consequently also wants subsidiary engine of pair of form a complete set gives enough pay attention toing, such ability assure the restful consumption of installation.
Device is used in chemical installation (pump of constrictive machine, chemical industry) the central facility that is chemical installation, its quality matters to the restful consumption that whole chemical industry installs. Pump of constrictive machine, chemical industry is a consumption that becomes independent alone fragmentary, they are comprised by subsidiary engine of a lot of form a complete set and touch many respects, if constrictive aircraft subsidiary engine has oily station, water station, filter, chemical pump subsidiary engine has oily station to wait, touch limits has: Pump of craft, machine, static equipment, electric equipment, appearance, this shows their complexity. The stand or fall of subsidiary engine quality matters to pump of constrictive machine, chemical industry to run normally directly, also concern the restful consumption of whole installation. Since in former years, industry of countrywide chemical industry already sent be valid to have restful accident, more make us sober ground view arrives the value that controls equipment quality. Run in whole consumption fragmentary in an among them link presents result, if deal with undeserved can cause ” of “ dominoes effect to make whole consumption installs collapse dish, form the case can be counted on one's fingers of disastrous result. People often says: &The bank of Ldquo; a thousand li, break through ” of Yu Yi acupuncture point, it is very reasonable. The lead plane quality that so the project wants pump of will constrictive machine, chemical industry not merely has been controlled, also want what to take them subsidiary engine to had been controlled, everything consumes clean up in safety hidden trouble, fulfil the quality management of equipment real point!
Engineering company is average very severe to pilot of constrictive aircraft main engine, chemical pump lead plane, also pay attention to very much, from promote, inspect of design, clique builds an engineer to be stationed in factory inspect to build, the whole consumption course such as the functional experiment to the front of equipment leaves factory, mechanical movement experiment is basic go up the quality that controlled lead plane of pump of constrictive aircraft main engine, chemical industry. But drive in the spot test run, in debugging a process, constrictive aircraft subsidiary engine, chemical pump subsidiary engine often presents all sorts of achievement to affect the normal movement of installation thereby, a few result that present with respect to the spot above try to analyse.
The company of project of a certain PC that engineering company contracts is installed 4 times in all, among them fit of residuum hydrogenation installation is the following achievement.
In residuum K102 new hydrogen constrictive machine tries when machine, one stage set transforms on oily station 5 times send implement have 3 fit trouble at the same time, because be 3 take 2 interlocking conditions, bring about oily station cannot run, constrictive machine cannot try machine, in urgent change change for ROSEMOUNT3051 send implement hind constrictive machine just runs normally.
Analyse cause: Plant of constrictive aircraft main engine disregards move back and forth the quality control of subsidiary engine of form a complete set, without bisect the quality that include business stops to control, the inspect that be stationed in a factory built an engineer to suspend quality control to constrictive aircraft main engine only, did not stop routine inspection test to factory of subsidiary engine of form a complete set, form quality of subsidiary engine of spot form a complete set to present result. Those who have brand of a lot of ROSEMO UNT3051 is put to change in the spare parts library of luckily project group send implement, change in time just did not debug normally to constrictive machine bring adverse effect. Design branch and leader plant sign brand of the instrument in technical agreement: The brand such as ROSEMOUNT, EJX, firm of two brands function is fluctuant, but the manufacturer was not telling total package for the interest square state issues privately instead international of a certain brand change send implement, the spot presents quality achievement to cause constrictive machine to debug cannot stop normally, if change not in time,can be opposite the movement of aircrew will bring restful consumption hidden trouble henceforth.
Rectify and reform plan: In the light of manufacturer of lead plane of resolution of group of project of this kind of state technology of indispensible according to asks to change afresh change send implement, change via promoting plant of the leader after the branch is harmonious to be made finally.
Experience summary: In current project project ministry sends division of inspection man Cheng and leader plant institute to send an engineer to do equipment routine inspection test to subsidiary engine factory together.
In the discovery in equipment unit progress, machine of move back and forth of installation of cracking of some candle oily hydrogenation east what side takes 6 buoy to be international on canister of fluid of cent of constrictive machine entrance some manufacturer, in the technical agreement that signs with plant of constrictive aircraft main engine, requirement fluid plan use Shanghai to believe east, the product of these brands such as Dandongtongbo, K-TEK, MAGNETROL.
Analyse cause: The inspect that be stationed in a factory built an engineer to suspend quality control to constrictive aircraft main engine only, disregard the quality control to subsidiary engine, cause supply business to exchange high quality to bring a loss to project group with inferior quality.
Deal with plan: Project group enjoins according to this kind of state agreement of technology of according to of plant of constrictive aircraft main engine asks to change the brand that 6 buoy manufacturer is the regulation in technical agreement. Strengthen the quality control of subsidiary engine of constrictive machine form a complete set in the task henceforth, if be necessary, project group sends quality engineer and factory of constrictive aircraft subsidiary engine to examine to subsidiary engine factory together.
Constrictive machine takes move back and forth oneself filter reachs building site spot, (K-102A/B/C) takes filter to have the following and serious result oneself, filter is highest try press pressure to be 25.8MPa, in all 32, 8 solder quality gives result (if pursue 1, 2, 3) .
Analyse cause: Constrictive machine takes move back and forth oneself filter 25.8Mpa, before leave factory each filter should do experiment of nondestructive flaw detection and hydraulic test, as a result of the task error of leader plant, cause filter of minute of the high pressure that offer trade to leave factory directly without examining, if the spot examines engineer task is not meticulous can form mysterious serious result.
Deal with plan: Project group resolution returns unqualified high-pressured filter money entirely. The firm is new weld buy does nondestructive flaw detection to examine before leave factory, send plant of division of inspection man Cheng, leader to send an engineer to go to minute of place that offer trade to do hydraulic test by project group.
Rectify and reform measure: Collective testimony lays the engineer that 8 filter of subsidiary engine manufacturer go to in the clique of leader plant and project group, filter of 8 high pressure classics nondestructive flaw detection, try after pressing, contented technology asks, after equipment reachs the spot successful unit, debug, movement.
In international the building site spot of a certain project: Nonlocal environment: The summer is very frozen, highest temperature - ℃ of 35 ℃ —-40, of equipment drive test run is facing an acid test.
Heating is fragmentary fit of the electric machinery when test run is the following achievement:
Pump date: BL-3705, bearing of electric machinery of the fit when pump test run holds an axis in the arms to form burn down of electric machinery coil finally, whole platform electric machinery discards as useless.
Analyse cause: Pump offers money by world-famous pump factory, electric machinery of form a complete set offers money by factory of electric machinery of world-famous explosion proof. But the bearing of exit brand SKF/NSK that electric machinery bearing is not the regulation in technical agreement, however international the product of some factory, and the smooth synovia that electric machinery factory takes oneself (high temperature lithium base fat) in high temperature - 40 ℃ become effective, cooling, smooth action is less than since, form bearing and electric crankshaft to hold in the arms in together, cause burn down of electric machinery coil and form quality accident.
Rectify and reform measure: The state that spot of engineering company basis presents, factory giving pump calls in the bearing in telling a requirement pump to the factory presses technical agreement regulation to ask to will show electric machinery changes entirely to export a brand (SKF/NSK) , smooth oil uses oil of 7014 high temperature. In promote cooperation of ministry, construction ministry and spot owner concerted effort, stop to rectify and reform to spot electric machinery.
Rectify and reform after finishing, it is normal that when test run electric machinery runs, recommend pump movement is normal.
The control management that offers trade about cent is a very complex issue actually, bearing of the card of use articles for use that regular electric machinery once understood in technical agreement, electric machinery uses a brand, but because pump factory manages cause to cause out of control of quality of electric machinery of form a complete set, be in so when necessary group of engineering company project also should send an engineer to stop equipment monitoring to factory of form a complete set, and severity examines electric machinery keep a file character.
Successful case: In continuance reforming installation pump uses the quality control that water stands
Pump stands with water is the subsidiary engine that makes form a complete set to boiler feed pump, because its importance engineering company promotes his alone, promote course contract to sign, urge hand in, those who design a file refer wait for a series of tasks, routine inspection test stops to its after manufacturer consumption is finished, the secondary that water stands is comprised by all sorts of pump, cistern, appearance, water pump makes movement of 24 hours of continuance.
Less important parameter: Water pump: Discharge: 85m3/h, pressure: 0.5MPa, (2)
The function examines: 24 hours of continuance that stop water pump first run, conclusion: Eligible
To water equipment of station form a complete set examines:
Cistern: Stainless steel bulk: 17m3 agrees with technical agreement requirement
Brand of water station pump examines agree with technical agreement regulation, world-famous brand
Water station pump examines with electric machinery agree with technical agreement regulation, world-famous brand
Of water station instrument, appearance examine agree with technical agreement regulation, world-famous brand
The file that keeps character: Of the mechanical function of lid of the pump housing to water pump, pump, impeller, axis and chemical composition examine the report stops to examine, classics after examining, contented technology agreement asks. To pump housing, pump the lid, impeller, axis, nondestructive that sheds annulus of mouth of welding line, impeller, pump to use buccal annulus too examines the report stops to examine, classics after examining, contented technology agreement asks. Right of water pump leave factory functional test report, mechanical movement report stops to examine, classics the qualification after examining.
Electric machinery examines: World-famous brand satisfies electric machinery technical agreement requirement. Leave factory to electric machinery functional report stops to examine, classics the qualification after examining.
Other satisfies technical agreement requirement like the brand such as instrument, appearance.
Whole examine the process is very one-sided very successful also, the movement after pump stands to the spot with sclerotic water is favorable (if pursue 4, 5, 6) .
The quality of subsidiary engine of form a complete set of pump of constrictive machine, chemical industry the success about engineering company project is very important, want to strengthen management for business about the cent of form a complete set of leader plant consequently, project group can send division of inspection man Cheng and Cheng Shiyi of leader plant inspection man to go to minute of place that offer trade to do the routine inspection test of equipment together, protect a file to stop to examine character to its, be controlled on the oldest standard and assure to divide the quality of the subsidiary engine that offer trade.