WO2006001725A1 - Pompe a piston hydraulique - Google Patents

Pompe a piston hydraulique Download PDF

Info

Publication number
WO2006001725A1
WO2006001725A1 PCT/RU2004/000231 RU2004000231W WO2006001725A1 WO 2006001725 A1 WO2006001725 A1 WO 2006001725A1 RU 2004000231 W RU2004000231 W RU 2004000231W WO 2006001725 A1 WO2006001725 A1 WO 2006001725A1
Authority
WO
WIPO (PCT)
Prior art keywords
pistons
cylinders
working
suction
piston
Prior art date
Application number
PCT/RU2004/000231
Other languages
English (en)
Russian (ru)
Inventor
Gennady Pavlovich Dmitriev
Original Assignee
Gennady Pavlovich Dmitriev
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gennady Pavlovich Dmitriev filed Critical Gennady Pavlovich Dmitriev
Priority to PCT/RU2004/000231 priority Critical patent/WO2006001725A1/fr
Publication of WO2006001725A1 publication Critical patent/WO2006001725A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
    • F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid

Definitions

  • the invention relates to the field of hydrotransport of solid bulk materials, in particular to volumetric pumps for pumping abrasive polydisperse hydraulic mixtures, and can be used in many areas of the economy for hydrotransport of materials with different fineness, density and concentration in working fluids of any density and viscosity.
  • Known hydraulic piston pump for hydrotransport of solid bulk materials including working cylinders with floating hydraulic working pistons, butt-joined control cylinders with floating hydraulic control pistons connected to working pistons by rods passed through cylinder ends with stuffing box seals, a drive pump with a pressure pipe supply of drive fluid to the piston rod cavities of the working cylinders through a spool or valve flow distributor o drain and pressure and drain pipelines, controlled by end sensors for turning on the injection pistons installed at the ends of the piston cavities of the control cylinders, suction and discharge pipelines with valves and connecting pipelines between, respectively, the rod and piston cavities of the control cylinders for alternating between the control fluid and return of the suction pistons (RU JNb 2138435.cl. B65G53 / 30, 10.27.99).
  • This pump is taken as a prototype.
  • the disadvantages of the pump are the uneven flow with flow pulsations when reversing the discharge and suction pistons moving at equal speeds, which reduces the reliability of its operation.
  • the pump includes two parallel working cylinders with pistons, movable rods connected to the pistons of the drive oil hydraulic cylinders, and a system for switching suction pipelines with self-actuating ball valves or drive rotary nozzles-trunks (prospectus of the German company Pytzmaister Pumps for Haichend2 -2 “Concrete” BP 1202-1).
  • the technical result of the invention is to ensure uniformity of supply, reducing wear and improving the reliability of the pump.
  • a hydraulic piston pump for hydrotransport of solid bulk materials including working cylinders with floating hydraulic actuated working pistons, control cylinders joined with their ends with floating hydraulic actuated control pistons, rods connected to working pistons, passed through cylinder ends with stuffing box seals, and a driving pump with a pressure pipe for supplying drive fluid to the piston rod cavities of the working cylinders through a spool or valve distribution numerator flow to the drain and pressure-drain pipes, controlled end
  • SUBSTITUTE SHEET (RULE 26) contact or non-contact discharge sensors for activating the delivery pistons installed at the ends of the piston cavities of the control cylinders, suction and discharge pipelines with valves and connecting pipelines with valves between the rod and piston cavities of the control cylinders, respectively, for alternating between the control fluid and the return of the suction pistons equipped with actuating servo-switches of the flow distributor controlling them with suction end sensors for I turn on the accelerated return of the suction pistons relative to the injection ones, installed at the ends of the rod cavities of the control cylinders and interacting with the end discharge sensors, control make-up chokes with make-up pipes connected at one end to the pressure pipe, and at the other end to the corresponding connecting pipes on which the control safety valves are installed - overflow valves with overflow pipelines connected to the drain piping.
  • the pump can be equipped with vertical chambers for the deposition of solid particles with bypass pipelines connected to the upper and lower parts of these chambers and forming nodes of their unloading with an upward flow of working fluid with regulators of the concentration of the hydraulic mixture in the form of movable nozzles for
  • SUBSTITUTE SHEET (RULE 26) changes in the gaps between the ends of the bypass and discharge pipelines.
  • the pump can also be equipped with a feed hopper - mixer, made with a bypass pipe, a self-unloading unit with an upward flow of the working fluid and a slurry concentration regulator similar to the aforementioned deposition chamber.
  • FIG. 1 diagram of a hydraulic piston pump - duplex
  • figure 2 cyclograms of the pump cylinders
  • Fig.Z the general sequence diagram of the pump.
  • the hydraulic piston pump contains working cylinders 1 and 2 with hydraulic actuating working pistons 3, 4, control cylinders 5 and 6 joined with their ends, control pistons 7, 8, connected with working pistons 3, 4, rods 9, 10, passed through cylinder ends with stuffing box seals, and end sensors 11, 12, and 13, 14 to turn on the discharge and suction pistons.
  • the rod and piston cavities of the control cylinders 5 and 6 are connected, respectively, to each other by connecting pipelines 15 and 16 with the possibility of flowing between them the control fluid to return the suction pistons.
  • a drive pump 29 To supply the drive fluid alternately and the piston rod cavities of the working cylinders 1 and 2, there are a drive pump 29, a pressure head 30, a discharge head 31, 32 and a drain 33 pipelines, a spool flow distributor 34 with springs of the neutral position of the spools and its hydro-electromagnetic spool servo switches 35 and 36 with springs of the initial position of the spools controlled by end sensors 11, 12 and 13, 14.
  • a thyristor frequency converter with an induction flow meter can be used. If it is necessary to increase the supply more significantly, a hydraulic piston pump can be used as a modular pump with the same type of pumps of the same type running in a transport system, or its larger size can be used accordingly.
  • control 5 and 6 in the conditions of variable flow of control fluid on the connecting pipelines 15 and 16 are installed safety control - overflow valves 41 and 42 with overflow pipes 43 and 44 connected to the drain pipe 33.
  • the power supply of the hydraulic control system and the return of the pistons can be carried out not from a common drive pump 29, but from an independent control pump of lower power (not shown in FIG. 1).
  • Floating working pistons 3 and 4 in addition to performing power functions during movements in working cylinders 1 and 2, are also disconnectors of clean drive fluid in rod cavities and hydraulic mixtures in piston cavities with a positive pressure gradient between them. Therefore, a drive fluid with high pressure both during injection and during suction will tend to flush cylinder - piston gaps, like a hydraulic valve, preventing the abrasive solid fractions of the hydraulic mixture from penetrating through them into the rod cavities and protecting the hydraulic piston pump from wear.
  • a self-loading feed hopper is used - mixer 45, which is essentially similar in design to the deposition chambers 23 and 24.
  • - mixer 45 When working at transfer stations, it is possible to supply the pump with hydraulic mixture directly from the transport pipeline.
  • Hydraulic piston pump operates as follows.
  • the concentration regulators in the feed hopper - mixer 45 and the deposition chambers 23 and 24 are tuned to ensure equal concentrations of the suction and discharge hydraulic mixtures.
  • SUBSTITUTE SHEET previously activated by the suction end sensor 13, in the extreme right position with the compressed spring of the initial position, passes the drive fluid from the pressure pipe 30 into the right end of the flow distributor 34, the spools of which are held in the extreme left position with the left compressed spring in the neutral position. Due to this, the drive fluid from the drive pump 29 is fed through the discharge pipe 32 to the piston rod cavity of the working cylinder 2, acts on the floating working piston 4, which moves the liquid part of the pumped hydraulic mixture moving - the working fluid into the deposition chamber 24 and through the bypass pipe 26 to unloading unit 28. Here, this working fluid captures the settled solid fractions, mixes with it in the upward flow and with the concentration provided by the concentration regulator through the discharge the shutter 22 enters the discharge pipe 18.
  • the moving working piston 4 moving at a nominal speed using the rod 10 pulls the control piston 8, which displaces the control fluid in front of it in the control cylinder 6 into the piston rod cavity of the control cylinder 5, forcing its control piston 7 together with the rod 9 and with a working piston 3, return to the side of the end discharge sensor 11, previously turned on by the end suction sensor 13.
  • the pumped hydraulic mixture is sucked from the feed tank at the same time of the mixer 45 through the suction pipe 17 through the shutter 19 into the piston cavity of the working cylinder 1 and the deposition chamber 23, displacement by the working piston 3 from the rod cavity of the working cylinder 1 and the drive fluid through the discharge and discharge pipe 31, through the spool flow distributor 34 into the drain
  • the sensor 11 through the sensor 13 disables the electromagnet of the servo switch 35, the spool of which moves under the action of the expanding spring to its original leftmost position, the supply of the drive fluid from the pressure pipe 30 is blocked, the right end cavity of the flow distributor 34 is connected to the drain pipe 33, and its spools are installed with neutralizing springs in the middle position, connecting the pressure pipe 30 through the pressure - drain pipes 31 and 32 with the piston rod cavities of the working cylinders 1 and 2.
  • piston 3 starts pumping at an increasing speed, and piston 4 continues pumping at a decreasing speed.
  • the injection piston 4, slowing down, stops, and the drive fluid from the pressure pipe 30 through the flow distributor 34 and pressure and drain pipe 31 in full begins to flow into the piston rod cavity of the working cylinder 1 and the injection and suction processes in the working cylinders occur similarly to the previous ones 1 and 2 with subsequent periodicity of the hydraulic piston pump operation cycles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

L'invention appartient au domaine du transport hydraulique de matières pulvérulentes solides. La pompe comprend des cylindres de travail (1, 2) avec des pistons de travail hydrauliques flottants (3, 4) auxquels sont raccordés par leurs extrémités des cylindres de commande (5, 6) munis de pistons flottants à entraînement hydraulique (7, 8), qui sont reliés aux pistons de commande par des tiges (9, 10), une pompe d'entraînement (29) avec une tuyauterie sous pression, destinée à amener le liquide d'entraînement (30) jusqu'aux cavités de tiges derrière les pistons des cylindres de travail via un distributeur de flux (34) avec des servo-commutateurs (35, 36), des capteurs d'extrémité commandés d'injection et d'aspiration, montés aux extrémités des cylindres de commande (5, 6). Les cavités pour tiges et les cavités pour pistons des cylindres de commande sont reliées entre elles par des tuyauteries de connexion (15, 16) qui assurent la possibilité d'écoulement entre elles d'un liquide de commande dans des régimes de fonctionnement différents et le retour accéléré de pistons d'aspiration par rapport aux pistons d'injections au moyen de papillons de réglage d'alimentation (37, 38) et de vannes de transfert et de protection (41, 42). On assure une alimentation régulière sans impulsions dans des régimes transitoires d'inversions de soupapes de travail, on réduit l'usure et on augmente la fiabilité de fonctionnement.
PCT/RU2004/000231 2004-06-18 2004-06-18 Pompe a piston hydraulique WO2006001725A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/RU2004/000231 WO2006001725A1 (fr) 2004-06-18 2004-06-18 Pompe a piston hydraulique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/RU2004/000231 WO2006001725A1 (fr) 2004-06-18 2004-06-18 Pompe a piston hydraulique

Publications (1)

Publication Number Publication Date
WO2006001725A1 true WO2006001725A1 (fr) 2006-01-05

Family

ID=35782065

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/RU2004/000231 WO2006001725A1 (fr) 2004-06-18 2004-06-18 Pompe a piston hydraulique

Country Status (1)

Country Link
WO (1) WO2006001725A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11730991B2 (en) 2018-12-17 2023-08-22 Marioff Corporation Oy Sprinkler self-diagnosis

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669572A (en) * 1970-06-08 1972-06-13 William R King Constant flow pumping system
FR2244923A1 (fr) * 1973-09-24 1975-04-18 Oilgear Co
SU1240952A1 (ru) * 1984-04-09 1986-06-30 Научно-Производственное Объединение Фундаментостроения "Союзспецфундаменттяжстрой" Гидропривод бетононасоса
SU1724924A1 (ru) * 1989-06-20 1992-04-07 Сургутское отделение Западно-Сибирского научно-исследовательского и проектно-конструкторского института технологии глубокого разведочного бурения Гидроприводной возвратно-поступательный насос
RU2138435C1 (ru) * 1998-03-26 1999-09-27 Дмитриев Геннадий Павлович Гидропоршневой насос

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3669572A (en) * 1970-06-08 1972-06-13 William R King Constant flow pumping system
FR2244923A1 (fr) * 1973-09-24 1975-04-18 Oilgear Co
SU1240952A1 (ru) * 1984-04-09 1986-06-30 Научно-Производственное Объединение Фундаментостроения "Союзспецфундаменттяжстрой" Гидропривод бетононасоса
SU1724924A1 (ru) * 1989-06-20 1992-04-07 Сургутское отделение Западно-Сибирского научно-исследовательского и проектно-конструкторского института технологии глубокого разведочного бурения Гидроприводной возвратно-поступательный насос
RU2138435C1 (ru) * 1998-03-26 1999-09-27 Дмитриев Геннадий Павлович Гидропоршневой насос

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11730991B2 (en) 2018-12-17 2023-08-22 Marioff Corporation Oy Sprinkler self-diagnosis

Similar Documents

Publication Publication Date Title
CN104508307A (zh) 液压系统
AU2015222279B2 (en) Hydraulically driven bellows pump
KR102020700B1 (ko) 두 개의 실린더를 가진 고밀도 재료용 펌프의 구동 제어를 위한 장치
CN105443468A (zh) 具有快速行程和负载行程的液压驱动装置
US7905713B2 (en) Method of operation of a reciprocating positive-displacement pump and reciprocating positive-displacement pump
CN106801691A (zh) 混凝土泵及其液压系统、控制方法
JPH02225768A (ja) コンクリート送出装置
CN105927495A (zh) 锚固剂生产用胶泥恒流灌装泵
RU2242638C1 (ru) Гидропоршневой насос
WO2006001725A1 (fr) Pompe a piston hydraulique
CN110118169A (zh) 一种混凝土液压双活塞泵换向稳流控制系统
CN202391129U (zh) 泵送系统及混凝土泵车
RU2045686C1 (ru) Двухцилиндровый шламовый насос
TW201517992A (zh) 用於噴灑系統之比例汽缸
CA2828614C (fr) Ensemble pompes modulaires
CN102937074A (zh) 连续供料系统及其控制方法、登高平台消防车
Korobko et al. Hydraulic single pump with combined higher volume compensator operation analysis
CN106545493A (zh) 一种分配阀及采用这种分配阀的输送泵
RU2342202C2 (ru) Установка напорного двухкомпонентного дозирования для безвоздушного нанесения полимерных композитных покрытий
KR102090481B1 (ko) 공압 펄스 발생장치 및 이를 이용한 정량공급장치
JPS61252876A (ja) 粘張物質から成る懸濁液を圧送するための装置及びこの装置を運転する方法
RU2138435C1 (ru) Гидропоршневой насос
CN106014903B (zh) 双缸稳流输送泵及采用这种双缸稳流输送泵的拖泵和泵车
RU2703856C1 (ru) Насос поршневой гидроприводной
EP3063407B1 (fr) Système d'acheminement et de pompage de substance moins apte à être pompée dans une conduite

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase