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Yakubtsova NataliaInstitute of Mining and GeologySpeciality: Technics and technology of investigation of deposits ofmineralsTheme of master's work:Razrabotka of pumping fluidizer drainage of barrels of mines, proydenykh boring drillingScientific adviser: Pilipec Victor |
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Introduction:Relevance: Lack of reliable water-lifting equipment for drying of drilled shafts, which could pump out a liquid from large deep and which could bring the time for pumping process in line with the time for examination of the quality of holders. Relation of work to scientific programs, topics: The department "Technique and technology of geological exploration" has sufficient experience in designing of pumps for different purposes Purpose of work: Modernization of available water-lifting equipment. The main idea of work: Modernization of technical methods for pumping the liquid out of depth, which is equal up to 1000 m, and also modernization pumping technologies. Tasks of works:
Object and subject of design: Sucker-rod pump and equipment for reciprocating the stings of ascending pipes. Determined tusks are reached via generalization and analysis of patent and literary sources, performance of theoretical researches, research and development works. Novelty of work: The novelty of work is represented by development compact mechanism for drive of sucker-rod pump and obtaining of analytical dependences, which allow to use pumping plant for removal of liquid during examination of holders. Practical use: Usage of developed technology for pumping out of liquid, which allow to bring the time for pumping operations in line with the time for examination of holders. This allow to reduce expenses of material assets and will promote the process of taking of the shaft into operation. Description of designed mechanismAfter completion of works for strengthening of drilled shafts and plugging of annular space, drying of such shafts must be performed. Trying of the shafts my be performed via sludge pumps, underwater pumps, air-lift, hydraulic pump and via other types of water lifters, which maintain and delivery. The one of the requirements to mumping plants is the possibility for workers to descend into the space, free from liquid, in order to examine holders during pumping out of liquid. The analysis of water-lifting equipment was performed, including different devices for drive of sucker-rod pumps and modernized pumping plant, which consists from sucker-rod pumps and mechanism for reciprocating of pump piston, which is installed on the surface. Performed analysis demonstrates that hydraulic rocking bar is perspective for drive of sucker-rod pumps. In order to remove limitations, which are natural for rocking bars of known types a hydropiston rocking bar was designed. This rocking bar includes cylinder, installed on block-and-tackle system of drilling apparatus, piston with rod, distribution valve and cross-over pipeline hydro piston rocking bar is actuated by liquid, supplied by driving pump. FunctionRocking bar must be suspended via link to traveling block of drill tower and the stem with swivel must be suspended via bottom link of rocking bar. The mechanism is actuated by special oil or water pump, installed in drilled tower and equipped with emergency valve and drain valve. Single-action sucker-rod pumps are descended into shaft via lifting pipes. The Cylinder of the pump is equipped with loads, which hold it at proper depth. Pressure hose of driving pump is fixed at bottom fitting. Drain hose, which drain working substance into receiving box of the pump, is connected to the upper fitting. Drain hose may be connected to filter for cleaning of working substance. Oil, water or compressed air may be used as cleaning agent. Pressure hose of driving pump is fixed at bottom fitting. Drain hose, which drain working substance into receiving box of the pump, is connected to the upper fitting. Drain hose may be connected to filter for cleaning of working substance. Oil, water or compressed air may be used as cleaning agent. During feeding of working substance by driving pump via bottom fitting into the bottom cavity of the cylinder, the piston and rod together with drilling string is in raised position against the stop of the valve, which is in closed position due to pressure of working agent, supplied via tube to the valve box. If the piston continues its ascending, the spring will shrink and when the pressing force exceeds the pressure of working substance relating to valve, the latter will open and take the up position. After shift of valve the bottom cavity of the cylinder, via throttle and connecting pipe, will be connected with bottom cavity of the cylinder, which has a free way out for working substance via fitting and receiving box of driving pump. The pressure of working substance in the bottom cavity of the cylinder will be reduced and the piston together with drilling string will take bottom position. Together with that the speed of descending of drilling string may be adjusted from zero to the free-fall speed via throttle. The valve during descending of the piston will be in up position due to working pressure in the box. During bottom position of the piston the stop will set against bottom had of rod and cause pressing of the spring. When the pressing force of the spring exceeds the pressure of working substance relating to valve, the latter will descended open the hole in cover. Advantages of designed mechanism1. The peculiarity of construction of the pump is the ability to prevent the pump cylinder from motion during reciprocating shifting of the piston by loads from PTB-590 and device, designed for reduction of buffing load of pint movement in dead points. 2. It is also possible to use this construction with two pistons for increase of load-carrying capacity. 3. The construction allows to feed sucker-rod pump during descending of the column under dead load. It was determined that in case of use of one piston with diameter of 178 mm for reciprocation of the pump piston, its load-carrying capacity allows to pump out the liquid from depth of up to 400 m. The construction of the mechanism for reciprocation of the pump piston allows usage of several pistons and this fact significantly increases it load-carrying ability an allows to pump out the liquid from the depth of up to 900-1000 m. Delivery of the pump with piston, which has a diameter of 205 mm, equals from 30 up to 70 m3 / hour depending on intensity of reciprocation. Drilling pumps with delivering capacity of more than 100 m3/ hour can be used for driving of mechanism, designed for reciprocation of mump piston. Research and engineering materials are provided to integrated mining and chemical plant "Spetsshakhtoburenie" for disposal. Literature1. Пилипец В. И. Насосы для подъема жидкости. – Донецк: РИА, 2000. с. 241. 2. Пилипец В. И. Применение погружных насосов с гидроприводом для откачки жидкости из буровых скважин. – Свердловск: СПИ. В кн.: Совершенствование техники и технологии бурения скважин на твердые полезные ископаемые. 1981. 3. Пилипец В. И., Неудачин Г. И. Разработка погружного насоса с гидроприводом для откачки жидкости из вентиляционных стволов пройденных бурением. (Штанговый поршневой насос для откачки жидкости из стволов шахт). – Москва: ЦНИИЭИУголь, Серия 6, № 12, 1976. 4. Неудачин Г. И., Пилипец В. И. Фоменко В. С., Зыбинский П. В. Результаты разработки погружных гидроприводных поршневых насосов для откачки жидкости из стволов шахт и буровых скважин. – Белгород: В кн.:"Техника и технология бурения скважин эксплуатационной разведки на карьерах и шахтах КМА", 1976. 5. Филимоненко Н. Т., Пилипец В. И. Некоторые результаты производственных испытаний технологии бурения с применением погружного пневмонасоса. – Москва: УкрНИИНТИ, № 1734. 1984. 6. Неудачин Г. И., Пилипец В. И., Зыбинский П. В., Оверин А. А. Скважинный гидропоршневой насосный агрегат. А. с. № 1035284, Б. И. № 30, 15. 08. 83. 7. Неудачин Г. И., Пилипец В. И., Малахов В. С., Филимоненко Н. Т. Пульсационный насос агрегат. А. с. № 987173, Б. И. № 1, 07. 01. 83. 8. Геологоразведочное бурение: Учебное пособие. – Донецк: Норд Пресс, 2004. – 404 с. / Авт.: Юшков А. С., Пилипец В. И. 9. Волков А. С. Буровой геологоразведочный инструмент; Учебное пособие для вузов. – М.: Недра, 1979. 286 с. 10. Авицур Б. А. Конструирование и технология машиностроения. 1965, № 4, – 118 с. © Yakubtsova N. V., DonNTU, 2010 |
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