WO2007056911A1 - Reservoir de carburant sous pression pour vehicule de pompage du beton - Google Patents

Reservoir de carburant sous pression pour vehicule de pompage du beton Download PDF

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Publication number
WO2007056911A1
WO2007056911A1 PCT/CN2006/001709 CN2006001709W WO2007056911A1 WO 2007056911 A1 WO2007056911 A1 WO 2007056911A1 CN 2006001709 W CN2006001709 W CN 2006001709W WO 2007056911 A1 WO2007056911 A1 WO 2007056911A1
Authority
WO
WIPO (PCT)
Prior art keywords
oil
fuel tank
valve
tank
concrete pump
Prior art date
Application number
PCT/CN2006/001709
Other languages
English (en)
Chinese (zh)
Inventor
Xiaogang Yi
Xiuming Yi
Youyi Wang
Xin Xu
Original Assignee
Sany Heavy Industry Co., Ltd.
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 Sany Heavy Industry Co., Ltd. filed Critical Sany Heavy Industry Co., Ltd.
Publication of WO2007056911A1 publication Critical patent/WO2007056911A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/14—Feeding by means of driven pumps the pumps being combined with other apparatus

Definitions

  • the invention mainly relates to the field of concrete pump trucks in construction machinery, and particularly relates to a pressurized fuel tank of a concrete pump truck.
  • the concrete pump trucks all use the normal pressure fuel tank. As the pumping capacity of the pumping truck increases, the required oil pump displacement also increases. In order to ensure the pressure of the oil suction port, the corresponding oil pump is equipped with oil absorption. The tube is getting bigger and bigger. Since the pump oil pump is generally arranged in a narrow area between the chassis girders, in order to reduce the loss of the oil absorption pipeline, the current domestic pump truck basically uses a fixed turret as a fuel tank to ensure the distance from the fuel tank to the oil pump is relatively close.
  • the fixed turret structure must allow sufficient space for the suction pipe, so that the force of the fixed turret is deteriorated, and the fatigue resistance is reduced, so that the pump is limited in space. How to arrange a large diameter suction pipe has become a problem.
  • the present invention is capable of effectively improving the oil absorption environment of the oil pump in the concrete pump truck, reducing the noise of the oil pump, prolonging the service life of the oil pump, and improving the hydraulic pressure.
  • the system cleanliness, at the same time, the oil pump can use the slender suction pipe to optimize the pressurized tank of the concrete pump truck of the overall structure of the pump truck.
  • a pressurized fuel tank of a concrete pump truck characterized in that: the oil tank is completely sealed, and an air inlet, an oil suction port and a oil return port are opened on the oil tank.
  • the oil suction port of the fuel tank is connected to the oil pump of the concrete pump truck through the oil passage, and the air inlet of the oil tank is connected to the gas storage tank through the air supply device.
  • the gas supply device in turn comprises a wide door, a pressure reducing valve and a pressure gauge, the valve is connected to the output end of the gas storage tank, and the pressure gauge is connected to the air inlet of the oil tank.
  • the air supply device further includes a check valve and an air filter, the check valve is disposed between the valve and the pressure reducing valve, and the air filter is disposed between the pressure gauge and the air inlet of the oil tank.
  • the pressure reducing valve adopts an overflow type pressure reducing valve
  • the fuel tank is connected to a low pressure compensation alarm valve through an oil passage, and the low pressure compensation alarm valve is connected to the controller through a signal line.
  • the fuel tank is further provided with an overhaul exhaust valve, and the repair exhaust valve is connected to a silencer.
  • a safety valve is arranged on the fuel tank.
  • the supercharged fuel tank of the concrete pump truck of the invention has a simple structure, and can be used not only on the concrete pump truck of the new structure. It can also be retrofitted on the existing concrete pump truck. It only needs to connect the gas storage tank and the fuel tank through the gas supply device, decompress the high pressure gas in the gas storage tank and introduce it into the fully sealed oil tank.
  • the air pressure in the oil tank is greater than the atmospheric pressure, so that the pressure of the oil pump suction port is improved, thereby improving the oil absorption environment of the oil pump connected to the fuel tank suction port, reducing the oil pump noise and prolonging the service life of the oil pump;
  • the pressurized tank of the concrete pump truck of the invention is fully sealed, which can effectively isolate the dust and moisture from the outside, and improve the cleanliness of the hydraulic system;
  • the pressurized fuel tank of the concrete pump truck of the invention can ensure that the oil pump suction port pressure reaches the required condition, so that the concrete pump truck can use a smaller and longer oil suction pipeline in the layout design process, which means that The position of the oil pump and the fuel tank is more flexibly arranged, and the structural components are more freely designed; at the same time, the use of the pressurized fuel tank technology of the invention makes the structure of the fixed turret more reasonable, and does not need to consider avoiding the suction pipe, thereby optimizing Structural design of the entire concrete pump truck;
  • the air supply system of the pressurized fuel tank of the concrete pump truck of the present invention passes through the air filter to ensure a good working environment of the pressure reducing valve and improve system reliability. At the same time, the maintenance-free design is adopted. After the system enters the working state, it does not need maintenance, and it can automatically stop running when the system or fuel tank leaks, and protect the oil pump.
  • Embodiment 1 is a schematic view showing the structure of Embodiment 1 of the present invention.
  • Embodiment 2 is a schematic view showing the structure of Embodiment 2 of the present invention.
  • Figure 3 is a schematic view showing the structure of the present invention applied to a concrete pump truck.
  • Embodiment 1 The supercharged oil tank 12 of the concrete pump truck of the present invention is disposed in a fixed turret on a concrete pump truck,
  • the fixed turret is mounted on the pump truck beam 15, the oil tank 12 is fully sealed, the oil tank 12 is provided with an air inlet, an oil suction port and a oil return port, and the oil suction port of the oil tank 12 is paid through the oil road and installed in the concrete pump truck.
  • the oil pump 13 between the beam 15 and the girders 17 is connected, and the safety valve 11 is mounted on the oil tank 12.
  • the safety valve 11 can be used for venting when the pressure reducing valve 4 malfunctions or the pipeline is blocked and the air pressure is too high.
  • the gas port of the oil tank 12 is connected to the gas storage tank 1 installed on the outer side of the concrete pump chassis frame 17 through a gas supply device.
  • the gas supply device comprises a valve 2, a pressure reducing valve 4 and a pressure gauge 5 in sequence, and the valve 2 is connected with the output end of the gas storage tank 1, and the valve 2 mainly functions to block the high pressure gas source and the pressure reducing system during the inspection;
  • the valve 4 adopts an overflow type pressure reducing valve, which can always stabilize the downstream pressure to a set value, and the pressure gauge 5 is connected in parallel to the downstream of the pressure reducing valve, which is convenient for setting the pressure of the fuel tank 12.
  • Embodiment 2 As shown in FIG. 2 and FIG. 3, the pressurized oil tank 12 of the concrete pump truck of the present invention is disposed in a fixed turret on a concrete pump truck, and the fixed turret is mounted on the pump truck beam 15, the fuel tank 12 is fully sealed, and the oil tank 12 is provided with an air inlet, an oil suction port and a oil return port.
  • the oil suction port of the oil tank 12 is connected to the oil pump 13 installed between the concrete pump truck beam 15 and the beam 17 through an oil passage, the safety valve 11 Installed on the oil tank 12, the safety valve 11 can be used for exhausting when the pressure reducing valve 4 malfunctions or the pipeline is blocked and the air pressure is too high.
  • the air inlet of the oil tank 12 is connected to the air tank 1 mounted on the outer side of the concrete pump chassis frame 17 through a gas supply device.
  • the gas supply device comprises a valve 2, a check valve 3, a pressure reducing valve 4, a pressure gauge 5 and an air filter 6 in sequence.
  • the valve 2 is connected to the output end of the gas storage tank 1, and the air filter 6 and the air inlet of the oil tank 12 The mouth is connected.
  • the main function of the valve 2 is to cut off the high-pressure gas source and the decompression system during maintenance; the one-way wide 3 can prevent the gas storage tank 1 from being gasless, and when the pressure reducing valve 4 fails, the gas in the fuel tank is poured into the gas storage tank 1;
  • the pressure reducing valve 4 adopts an overflow type pressure reducing valve, which can always stabilize the downstream pressure to a set value, the pressure gauge 5 is convenient to set the set pressure of the fuel tank 12, and the air filter 6 is an automatic drain (oil) type, when When the pressure valve 4 overflows, the oil mist and steam in the gas are filtered to prevent the oil mist and steam from entering the pressure reducing valve 4, causing malfunction.
  • the oil tank 12 is connected to a low pressure compensation alarm valve 9 through an oil passage, and the low pressure compensation alarm valve 9 is connected to the controller through the signal line 10, and the signal line 10 is used.
  • the low pressure signal is transmitted to the controller, when the pressure of the oil tank 12 is lower than the set value, the low pressure compensation alarm valve 9 sends a signal to the controller to stop the operation of the oil pump 13.
  • the atmosphere can be replenished to the fuel tank 12 to prevent further deterioration of the oil absorption conditions.
  • the low-pressure compensation valve can also replenish the air in time to prevent the oil pump 13 from sucking.
  • the fuel tank 12 is provided with an overhaul venting valve 7 which can be deflated when the tank 12 is cleaned or inspected.
  • the venting valve 7 is connected to a muffler 8 which can lower the venting The noise when the air is angry.
  • the valve 2 of the air supply device is opened, and the high pressure gas in the gas storage tank 1 sequentially enters the oil tank 12 through the valve 2, the check valve 3, the pressure reducing valve 4, and the air filter 6, since the oil tank 12 is completely sealed,
  • the air pressure in the oil tank 12 will be at atmospheric pressure, so that the pressure of the oil suction port connected to the suction port of the oil tank 12 is correspondingly increased, thereby improving the oil absorption environment of the oil pump 13, and the pressure reducing valve 4 will automatically stop inflating after reaching the set value.
  • a smaller and longer suction line can be used while ensuring that the suction pressure of the oil pump 13 is as high as possible, which means that the position of the oil pump 13 and the fuel tank 12 can be more flexibly arranged, and the structural components can be more freely designed.
  • the main cylinder and the swing cylinder of the pumping system belong to the series structure, the oil sucked by the oil pump 13 and the oil phase returned by the return pipe are almost no need for supplemental gas.
  • the gas can be replenished in time due to the small flow of the boom oil pump. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

L'invention concerne un réservoir de carburant sous pression pour véhicule de pompage du béton, ce réservoir étant totalement étanche. Le réservoir comporte un port d'admission d'air, un port d'aspiration du carburant et un port de retour du carburant. Le port d'aspiration du carburant est raccordé à la pompe à carburant du véhicule de pompage du béton par un conduit. Le port d'admission d'air est raccordé à un réceptacle d'air par un dispositif d'alimentation d'air.
PCT/CN2006/001709 2005-11-18 2006-07-17 Reservoir de carburant sous pression pour vehicule de pompage du beton WO2007056911A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNB2005100323992A CN100376808C (zh) 2005-11-18 2005-11-18 混凝土泵车的增压油箱
CN200510032399.2 2005-11-18

Publications (1)

Publication Number Publication Date
WO2007056911A1 true WO2007056911A1 (fr) 2007-05-24

Family

ID=36742414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/001709 WO2007056911A1 (fr) 2005-11-18 2006-07-17 Reservoir de carburant sous pression pour vehicule de pompage du beton

Country Status (2)

Country Link
CN (1) CN100376808C (fr)
WO (1) WO2007056911A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107642440A (zh) * 2016-07-20 2018-01-30 豆德旗 柴油车油路通自动补偿系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8241010B2 (en) * 2009-12-03 2012-08-14 Caterpillar Global Mining Llc Hydraulic reservoir for hydraulic regenerative circuit
CN104265526A (zh) * 2014-09-25 2015-01-07 重庆特飞航空动力科技有限公司 动力冲浪板发动机用正压供油系统
CN105020185A (zh) * 2015-07-30 2015-11-04 上海神舟汽车节能环保有限公司 一种空气动力起步系统（液压混合动力系统）用液压油箱
CN107013511A (zh) * 2017-05-19 2017-08-04 广东伊之密高速包装系统有限公司 注塑机用的增压油箱
CN107917107A (zh) * 2017-11-20 2018-04-17 杰瑞石油天然气工程有限公司 一种膨胀水箱或高位油箱的增压方式
CN107934784A (zh) * 2017-11-24 2018-04-20 徐州重型机械有限公司 一种油箱加压装置、控制方法及其起重机
CN113958282A (zh) * 2021-10-08 2022-01-21 徐州徐工基础工程机械有限公司 一种气动保压装置

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS5937258A (ja) * 1982-08-25 1984-02-29 Hitachi Zosen Corp 内燃機関の燃料供給装置
JPH02173351A (ja) * 1988-12-26 1990-07-04 Horie Kinzoku Kogyo Kk 燃料ポンプユニット
JP2002202012A (ja) * 2001-01-09 2002-07-19 Nippon Sharyo Seizo Kaisha Ltd エンジン作業機
CN1392338A (zh) * 2001-06-14 2003-01-22 张干 一种新型汽油发动机供油系统装置

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JPS57177401A (en) * 1981-04-22 1982-11-01 Hitachi Constr Mach Co Ltd Pressurizing device for hydraulic tank
JPS57184702A (en) * 1981-05-06 1982-11-13 Hitachi Constr Mach Co Ltd Pressurizing device for pressure oil tank
CN2124160U (zh) * 1992-04-15 1992-12-09 于伟 汽车增力装置
JPH0821403A (ja) * 1994-07-11 1996-01-23 Meiki Co Ltd 密閉式タンクを使用した射出成形機
JP2002303301A (ja) * 2001-04-04 2002-10-18 Nippon High Heat:Kk 液体タンク用気体収容装置
CN2576988Y (zh) * 2002-10-14 2003-10-01 郑顺利 柴油发动机的加压油箱
CN2861575Y (zh) * 2005-11-18 2007-01-24 三一重工股份有限公司 混凝土泵车的增压油箱

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5937258A (ja) * 1982-08-25 1984-02-29 Hitachi Zosen Corp 内燃機関の燃料供給装置
JPH02173351A (ja) * 1988-12-26 1990-07-04 Horie Kinzoku Kogyo Kk 燃料ポンプユニット
JP2002202012A (ja) * 2001-01-09 2002-07-19 Nippon Sharyo Seizo Kaisha Ltd エンジン作業機
CN1392338A (zh) * 2001-06-14 2003-01-22 张干 一种新型汽油发动机供油系统装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107642440A (zh) * 2016-07-20 2018-01-30 豆德旗 柴油车油路通自动补偿系统

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Publication number Publication date
CN1766349A (zh) 2006-05-03
CN100376808C (zh) 2008-03-26

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