SU964229A1

SU964229A1 - Positive displacement pump

Info

Publication number: SU964229A1
Application number: SU813251020A
Authority: SU
Inventors: Анатолий Игоревич Смелягин; Юрий Степанович Поляков; Юрий Петрович Мисюк; Николай Павлович Ряшенцев
Original assignee: Новосибирский электротехнический институт
Priority date: 1981-02-19
Filing date: 1981-02-19
Publication date: 1982-10-07

Description

Изобретение относится к насосостроению, в частности к диафрагменным насосам, и может найти применение в различных отраслях народного хозяйства при перекачке взвесесодержащих текучих сред, выпадающих в осадок.The invention relates to a pump engineering industry, in particular to diaphragm pumps, and may find application in various sectors of the national economy when pumping suspended sedimentary fluids.

Известен объемный насос, содержащий корпус, подвижный вытеснитель, установленный в корпусе с образованием насосной камеры, снабженной всасывающим клапаном, расположенным в подвижном вытеснителе со стороны входного тракта, и дополнительную камеру, расположенную во входном тракте и сообщенную через всасывающий клапан с насосной камерой [13··Known volume pump containing a housing, a movable displacer installed in the housing with the formation of the pump chamber, equipped with a suction valve located in the movable displacer from the inlet side, and an additional chamber located in the inlet path and communicated through the suction valve with the pump chamber [13 · ·

Недостатком известного насоса является невысокая надежность.при перекачке текучих сред,' выпадающих в осадок, из-за засорения всасывающего тракта.A disadvantage of the known pump is its low reliability. When pumping fluids that precipitate, due to clogging of the suction tract.

Цель изобретения - повышение надежности работы при перекачке текучих сред, выпадающих в осадок.The purpose of the invention is to increase the reliability of the pumping fluid, precipitated.

Для достижения указанной цели дополнительная камера снабжена подвиж5 ной стенкой, связанной с вытеснителем, причем эффективная площадь подвижной стенки дополнительной камеры больше эффективной площади вытеснителя .To achieve this goal, the additional chamber is equipped with a movable wall associated with the displacer, and the effective area of the movable wall of the additional chamber is greater than the effective area of the displacer.

¹⁰ На чертеже представлен предлагаемый насос. ¹⁰ The drawing shows the proposed pump.

В корпусе 1 установлен с образованием насосной камеры 2 подвижный вытеснитель 3, связанный с корпусом 1 ¹⁵ диафрагмой 4. Насосная камера 2 снабжена нагнетательным клапаном 5, установленным в нагнетательном канале 6 корпуса 1, и всасывающим клапаном 7, ₂₀ расположенным в подвижном вытеснителе 3 со стороны входного тракта, образованного дополнительной камерой 8 и всасывающим каналом 9, выполненным в корпусе 1. Дополнительная'камера 8 снабжена подвижной стенкой-диафрагмой 10, связанной с вытеснителем 3, причем эффективная площадь подвижной стенки-диафрагмы 10 дополнительной камеры 8 больше эффективной площади вытеснителя 3. Последний связан тягами 1.1 с подпружиненным якорем 12 электромагнитного привода 13.The body 1 is set to form the pump chamber 2 movable displacer 3 associated with the housing ^{15 January} diaphragm 4. The pump chamber 2 is provided with a discharge valve 5 arranged in the discharge channel 6 of the body 1, and the suction valve 7, ₂₀ disposed in the movable side displacer 3 the input path formed by an additional chamber 8 and a suction channel 9 made in the housing 1. The additional chamber 8 is equipped with a movable diaphragm wall 10 connected to the displacer 3, and the effective area of the movable diaphragm wall ragma 10 additional chamber 8 is larger than the effective area of the displacer 3. The latter is connected by rods 1.1 with a spring-loaded armature 12 of the electromagnetic drive 13.

Насос работает следующим образом.The pump operates as follows.

При включении электромагнитного ι привода 13 якорь 12 с подвижным вытеснителем 3 начинают совершать возвратно-поступательные колебания, в процессе которых происходит периодическое изменение объема насосной камеры 2. При расширении последней в нее через всасывающий клапан 7 поступает перекачиваемая среда, при уменьшении объема камеры 2 перекачиваемая среда вытесняется из нее к потребителю через нагнетательный клапан 5 и канал 6.When the electromagnetic ι drive 13 is turned on, the armature 12 with the movable displacer 3 begin to oscillate, during which the volume of the pump chamber 2 is periodically changed. When the latter expands, the pumped medium enters through the suction valve 7, and the pumped medium decreases when the chamber 2 decreases. is displaced from it to the consumer through the discharge valve 5 and channel 6.

В процессе перемещения вытеснителя 3 совершает колебания и связанная с ним подвижная стенка-диафрагма 10. Ее колебания вызывают периодическое изменение объема дополнительной камеры 8, причем это изменение происходит в противофазе по отношению к насосной камере 2. Поэтому в момент расширения камеры 2 за счет разности эффективных плбщадей подвижной стенки-диафрагмы 10 и вытеснителя 3 перекачиваемая среда поступает в камеру 2 с некоторым подпором. Этот подпор создается за счет большой мгновенной объемной подачи дополнительной камеры 8, вследствие чего часть перекачиваемой среды вытесняется обратно во всасывающий канал 9, дросселируясь в нем и создавая избыточное давление в камере 8. Под действием подпора со стороны дополнительной камеры 8 обеспечивается лучшее заполнение на4 сосной камеры 2. Кроме того, возникновение обратного тока жидкости на такте всасывания в канале 9 и камере 8 способствует турбулизации потока во всасывающем тракте, взмучиванию выпадающих в осадок твердых частиц и предотвращает- тем самым засорение тракта. >During the displacement of the displacer 3 oscillates and the associated movable wall-diaphragm 10. Its oscillations cause a periodic change in the volume of the additional chamber 8, and this change occurs in antiphase with respect to the pump chamber 2. Therefore, at the time of expansion of the chamber 2 due to the difference in effective With the area of the movable wall-diaphragm 10 and displacer 3, the pumped medium enters the chamber 2 with some backwater. This backwater is created due to the large instantaneous volumetric supply of the additional chamber 8, as a result of which part of the pumped medium is forced back into the suction channel 9, throttling in it and creating excess pressure in the chamber 8. Under the action of the back pressure from the side of the additional chamber 8, better filling of the pine chamber 4 is ensured. 2. In addition, the occurrence of a reverse fluid flow at the suction stroke in the channel 9 and the chamber 8 contributes to the turbulence of the flow in the suction tract, to the agitation of the precipitated solid parts c and prevents, thereby clogging the tract. >

• Таким образом, за счет того, что дополнительная камера 8 снабжена подвижной стенкой-диафрагмой 10, связанной с вытеснителем 3 и имеющей эффективную площадь, большую чем эффективная площадь последнего, дости15 гается.вынос осадка и повышение надежности работы насоса.• Thus, due to the fact that the additional chamber 8 is equipped with a movable diaphragm wall 10 connected to the displacer 3 and having an effective area larger than the effective area of the latter, 15 sediment removal and increased pump reliability are achieved.

Claims

The invention relates to pump engineering, in particular to diaphragm pumps, and can be used in various industries of the national economy when pumping suspension-containing fluids precipitating. A volumetric pump is known, comprising a housing, a movable propellant mounted in the housing to form a pumping chamber, equipped with an eica valve, located in the movable propellant from the inlet side, and an additional chamber located in the inlet duct and communicated through the suction valve to the pumping chamber l3 - A disadvantage of the known pump is the low reliability. When pumping fluids deposited due to clogged suction tract. The purpose of the invention is to improve the reliability of work when pumping fluids precipitated. To achieve this goal, an additional chamber is provided with a movable wall associated with the displacer, the effective area of the movable wall of the additional chamber being larger than the effective area of the displacer. The drawing shows the proposed pump. In case 1, movable displacer 3 is connected to housing 1, which is connected to diaphragm C by body 1. Pump chamber 2 is equipped with discharge valve 5i installed in discharge channel 6 of housing 1 and suction valve 7 located in movable expeller 3 from the inlet side formed by additional chamber 8 and suction channel 9 made in housing 1. Additional chamber 8 3Э (provided with a movable wall-diaphragm 10 connected to the displacer 3, and the effective area of the movable wall is The aphragms 10 of the additional chamber 8 are larger than the effective displacement area 3. The latter is connected with the spring-loaded cortex 12 of the electromagnetic actuator 13. The pump operates as follows: When the electromagnetic actuator 13 is switched on, the measles 12 with the mobile propeller 3 begin to make reciprocating oscillations the process of which there is a periodic change in the volume of the pumping chamber 2. When the latter expands, the pumped medium enters it through the suction valve 7, when the volume of the chamber 2 decreases, the pumped ma, the medium is forced out of it to the consumer through the discharge valve 5 and channel 6. In the process of moving, the propellant 3 oscillates and the movable wall-diaphragm 10 connected with it. Its oscillations cause a periodic change in the volume of the additional chamber 8, and this change occurs in antiphase with respect to the pump chamber 2. Therefore, at the moment of expansion of chamber 2 due to the potential of efficient industrial areas of the movable wall-diaphragm 10 and displacer 3, the pumped medium enters chamber 2 with some backwater. This pore is created due to the large instantaneous volume supply of the additional chamber 8, as a result of which part of the pumped medium is forced back into the suction channel 9, throttling therein and creating an overpressure in chamber B. Under the action of the overpressure from the additional chamber 8 provides better filling cameras

2. In addition, the occurrence of a reverse flow of fluid during the suction stroke in the channel 9 and the chamber 8 contributes to the turbulence of the flow in the suction tract, the stirring up of precipitated solid particles and thereby prevents clogging of the tract. . . Thus, due to the fact that the additional chamber 8 is provided with a movable wall-diaphragm 10, associated with the displacer 3 and having an effective area larger than the effective area of the latter, it is achieved - the removal of sediment and an increase in the reliability of the pump. The invention The volumetric pump comprising a housing, a movable propellant mounted in the housing to form a pump chamber equipped with a suction valve located in the movable propellant on the input path side, and an additional chamber located in the input path and communicated through the suction valve with the pump chamber different By the fact that, in order to increase the reliability of work when pumping fluids deposited in the sediment, the additional chamber is equipped with a movable wall associated with the displacer, When in use, effective area of the movable wall of the additional chamber greater than the effective area of the propellant. Sources of information taken into account during the examination 1. USSR author's certificate N 552k26, cl. F tS / OA, 1974.