WO2018201550A1 - 离心油液净化装置 - Google Patents

离心油液净化装置 Download PDF

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Publication number
WO2018201550A1
WO2018201550A1 PCT/CN2017/087576 CN2017087576W WO2018201550A1 WO 2018201550 A1 WO2018201550 A1 WO 2018201550A1 CN 2017087576 W CN2017087576 W CN 2017087576W WO 2018201550 A1 WO2018201550 A1 WO 2018201550A1
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WIPO (PCT)
Prior art keywords
oil
tank
liquid level
centrifugal
level gauge
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PCT/CN2017/087576
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English (en)
French (fr)
Inventor
索和
Original Assignee
索和
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Publication date
Application filed by 索和 filed Critical 索和
Publication of WO2018201550A1 publication Critical patent/WO2018201550A1/zh
Priority to US16/700,076 priority Critical patent/US11559756B2/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0042—Degasification of liquids modifying the liquid flow
    • B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
    • B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/0063—Regulation, control including valves and floats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0024—Inlets or outlets provided with regulating devices, e.g. valves, flaps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
    • B01D21/0042—Baffles or guide plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/2405—Feed mechanisms for settling tanks
    • B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
    • B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters

Definitions

  • the invention relates to the technical field of oil purification equipment, in particular to a centrifugal oil purification device.
  • the used oil is usually treated by an oil purification device, and solid particles and gas particles in the oil are separated and reused.
  • CN 101648166 B discloses a patent for the invention of a high-precision centrifugal oil purifier, including an intake hose, a gear pump, a centrifuge, a sewage tank, a motor and an oil outlet, an intake hose and a centrifuge input.
  • the interface is connected to form an oil inlet pipe, and the output interface of the centrifuge is connected with the oil outlet pipe to form an oil discharge pipe.
  • the high-precision centrifugal oil purifier has a PLC controller, a flow valve, a pressure sensor, a temperature sensor, and an adjustable check valve.
  • the PLC controller controls the gear pump, the check valve, and the motor based on the pressure and temperature information detected by the pressure sensor and the temperature sensor.
  • the working process of this structure is: the gear pump transports the customer's fuel tank oil through the inlet pipe to the inlet of the stationary centrifugal barrel, and discharges the air in the centrifugal barrel from the outlet of the centrifugal barrel, but the top cannot be completely eliminated, and is turned on by the timing setting.
  • the centrifugal barrel motor rotates at a high speed, and the oil is adsorbed on the circular filter net in the centrifugal cylinder by the centrifugal cylinder.
  • the clean oil converts the high-speed rotating dynamic pressure head from the top stationary impeller into a static pressure head, from the centrifugal
  • the barrel outlet is discharged, and the working temperature and pressure sensor are used as the detecting components.
  • the oil passage can be switched by the manual valve, and the oil discharge port of the centrifugal barrel is connected with the oil inlet of the centrifugal barrel, and the oil is repeatedly purified by the centrifugal barrel to achieve the purpose of fine filtration, and the substantial defects are:
  • the gear pump adopts a high power of at least 4 KW, and the disturbance to the oil is large, and the emulsification of the aqueous oil liquid is accelerated. It consumes a lot of energy and does not meet the requirements of energy conservation and environmental protection.
  • the secondary purification circuit causes the oil to frictionally heat up and the temperature rises. And the secondary purification circuit needs manual operation to open and close, and the operation is inconvenient.
  • the patent number disclosed by Suotong Company is 2011100475331, and the patent name is the invention patent of centrifugal oil purifier, which includes control system, central shaft, centrifugal cylinder, shaft seat body, rotating frame, disc guide plate, oil collecting impeller, Turn the wheel, a motor, an oil outlet pipe, an oil inlet pipe, a drain tank and a fuel tank.
  • the inner shaft of the centrifugal cylinder is provided with a central shaft, and the lower half of the central shaft is fixed with a shaft seat body through a guide sleeve, and an oil collecting impeller is fixed at an upper end of the central shaft.
  • the shaft is sleeved with a rotating skeleton, and the rotating skeleton is composed of a sleeve and a support rod.
  • the sleeve is sleeved on the central shaft, and the two ends of the sleeve are sealed.
  • the outer side wall of the sleeve is fixed with a plurality of support rods parallel to the central axis on both sides.
  • the lower end of the support rod is fixed to the concave inner cavity surface of the front end cover, and the rotating bobbin is sleeved with a plurality of concave disc-shaped guide plates from bottom to top, and the adjacent guide plates are spaced apart from each other, and the outer side surface of the front end cover is centrifuged.
  • the lower half of the cylinder is fixed, the lower end of the centrifugal cylinder is fixed with a rotating wheel, and the upper end is provided with an oil outlet pipe communicating with the inner cavity of the central shaft, the rotating wheel is connected with the motor, and the two blades adjacent to the inner cavity of the front end cover are
  • the bottom is connected with the sewage pipe and the oil inlet pipe, and the oil inlet pipe is connected with the oil tank.
  • the main oil circuit of the invention does not need the gear pump to supply oil, and the radial blade at the bottom of the centrifugal cylinder generates a vacuuming effect at high speed rotation, so that the oil is at atmospheric pressure. Smooth under the action It flows into the bowl, no impact, no additional energy without accelerating the emulsified oil.
  • the titanium alloy disc can cut the link between the oil and the water molecular chain, break the oil-in-oil film, release the emulsified water, and effectively emulsification.
  • the fuel tank is the flow buffer of the oil purifier, the oil and gas are separated in the fuel tank.
  • the purified oil first enters the fuel tank and then enters the purification cylinder through the bottom of the oil tank.
  • the drain box is usually used. After the leaked oil or exhaust is completed, the oil automatically drained from the attached tank is collected. When the oil in the drain box is full, the oil in the drain box is returned to the closed tank for repurification.
  • the liquid level detection of the existing centrifuge drum drain box uses a mechanical float to detect the liquid level, the float ball controls the opening and closing of the check valve through the lever, the float ball reaches the upper position, the check valve is opened, and the liquid is discharged from the single Recycling to the pollution box to the valve has the disadvantage of not automatically determining the negative pressure value in the dirt trap box.
  • the liquid level in the drain box is kept at the critical liquid level during normal operation, the recovery work is frequently turned on and off, and the gas is easily mixed into the tank.
  • the dirt trap box causes the pressure to drop, resulting in the inefficiency of the float ball and the unreliable problem of the check valve, the failure rate is high, and the work efficiency is low.
  • the level gauge uploads the information to the control system, and the control system commands the drain motor to operate, and the drain box is inside.
  • the oil is pumped into the fuel tank through the oil discharge pump, and then re-purified.
  • the oil in the drain box is cleaned and the drain motor stops working.
  • the disadvantage is the drain pump. The energy consumption is large and cannot achieve the purpose of energy saving and environmental protection.
  • the lower end of the centrifugal cylinder is sealed and connected with the shaft seat body through a sealing device, which comprises a shaft seat body, a graphite ring seat, a graphite ring, a sealing frame and a rotating frame, and an oil receiving groove is arranged at an upper end of the shaft seat body, and the oil receiving groove side is
  • the oil discharge pipe is connected to the oil discharge box, wherein the oil groove is a horizontal groove, the graphite ring seat is screwed to the central shaft of the shaft seat body, and the graphite ring is provided with a graphite ring at the upper end.
  • the outer part of the graphite ring seat is sleeved with a rotating skeleton, and the rotating skeleton is matched with the graphite ring through the sealing skeleton, and the rotating skeleton drives the sealing frame to rotate at a high speed, which is an oil film formed between the sealing skeleton and the graphite ring, thereby forming an oil seal, and the substantial deficiency thereof is :
  • a high speed which is an oil film formed between the sealing skeleton and the graphite ring, thereby forming an oil seal
  • the substantial deficiency thereof is :
  • the third is that during the high-speed centrifugal rotation of the centrifugal cylinder, the stress caused by the circlip block on the tensioning groove of the circlip of the centrifugal cylinder causes the circlip block to cause damage to the side wall of the tensioning groove of the circlip, thereby forming a gap, resulting in a gap.
  • the centrifuge tube and the butterfly skeleton seal failed to be fixed.
  • the centrifugal oil purifier purifies the oil
  • the oil to be purified is usually pumped into the oil tank, and the liquid level in the oil tank is observed through a transparent tube connected to the fuel tank at the bottom of the tank.
  • the centrifuge tube is started again, and the air bubbles in the oil will be pumped into the centrifuge tube with the circulation pump, which not only greatly shortens the life of the cylinder, but also requires the operator to observe the oil filling condition in the transparent tube, thereby increasing the labor. cost.
  • the object of the present invention is to solve the above-mentioned deficiencies of the prior art, and to provide a centrifugal oil purification device with novel structure, stable performance, high production efficiency, energy saving and environmental protection, and high degree of automation.
  • Centrifugal oil purification device comprising central shaft, centrifugal cylinder, shaft seat, rotating skeleton, disc guide, oil collecting impeller, rotating wheel, vacuum pump, oil outlet pipe, oil inlet pipe, drain box, storage box, fuel tank And a PLC controller, characterized in that an alarm oil tank is arranged at the top of the fuel tank body, a liquid level gauge is arranged in the alarm oil tank, and an oil inlet port is arranged on an upper side of the alarm oil tank above the liquid level gauge, and the lower part is provided The lower part of the alarm oil tank is provided with an oil outlet, and the oil inlet is connected with the centrifugal cylinder through the oil inlet pipe.
  • the vacuum pump When the equipment is turned on, the vacuum pump is opened, and the customer oil enters the fuel tank body under the action of the oil suction vacuum pump, and the oil tank body is filled with oil. Later, the valve is switched to the alarm tank.
  • the level gauge in the alarm tank senses that the oil is full, it means that the gas between the cylinder and the disc is discharged.
  • the level gauge uploads the sensed information to the control system and controls it.
  • the system automatically commands the centrifugal cylinder motor to drive the centrifugal cylinder to start rotating under the centrifugal force, which solves the substantial shortage of the operator to observe the oil level.
  • the present invention can be provided with an oil discharge recovery solenoid valve on the connecting oil passage between the oil drain box and the dirt collection box, and the oil discharge recovery electromagnetic valve is connected with the PLC controller to make the whole
  • the oil recovery system is in a sealed state, ensuring that the dirt trap box is always in a negative pressure state, achieving the functions of precise control, low failure rate, high work efficiency, energy saving and environmental protection.
  • the liquid level meter of the present invention is composed of a liquid level gauge base, a liquid level gauge rod, a float and a circlip.
  • the liquid level gauge rod between the liquid level gauge base and the float is sequentially 8 mm in diameter from top to bottom.
  • the straight rod segment and the straight rod segment 5 having a diameter of 6 mm are formed.
  • the liquid level gauge base is disposed on a straight rod segment having a diameter of 8 mm
  • the float is disposed on a straight rod segment having a diameter of 6 mm, and passes through the liquid level.
  • the shape of the rod is improved, the frictional resistance during the up and down floating in the oil in the invention is greatly reduced, and the sensitivity of the invention to the liquid level detection in the oil is improved, and the liquid in the drain box is in operation.
  • the liquid level meter sends the liquid level upper limit signal to the PLC controller.
  • the PLC controller determines the running state of the centrifuge tube. If the centrifuge tube is in the stop state, the upper limit signal remains until the upper limit signal remains.
  • the centrifuge cylinder reaches the set number of revolutions and the outlet pressure More than 0.01, at this time, the negative pressure value in the pollution box reaches the ability to recover the oil in the drain box, the oil drain recovery solenoid valve is opened, and the oil in the drain box is under the pressure of atmospheric pressure, and is discharged through the drain box.
  • the oil recovery solenoid valve is recycled by the pollution box.
  • the drain tank level gauge outputs a lower limit signal to the PLC controller, and the PLC controller commands the drain recovery solenoid valve to shut down. The oil recovery work is terminated.
  • the invention can be provided with a bubble removing device in the box body, which comprises a curved plate and a baffle plate, the deflector plate is slanted in the box body, and the box body is divided into a main oil tank and a fuel tank, so that the oil tank is provided Forming a wide and narrow cavity, which is favorable for the solid impurities to flow down the baffle, the top of the oil tank is connected with the oil inlet pipe, the bottom is provided with an impurity discharge port, and the upper part of the main oil tank is provided with a curved plate at a horizontal level.
  • the bottom is provided with a grease vent, and the bottom of one side is provided with an oil outlet pipe.
  • the curved plate has a wavy curved surface, and one end of the curved plate is fixedly connected with the deflector, and the oil in the attached oil tank is higher than the flow guiding plate to the curve.
  • the gas impurities in the oil are precipitated by the bumps of the wavy curved surface on the curved plate, and the purified oil flows into the main oil tank 4 through the other end of the curved plate 2, and the oil mixed with the air enters.
  • the customer oil enters the oil tank of the main tank body under the action of the suction vacuum pump, the oil gradually rises along the deflector.
  • the oil is higher than the deflector, the oil flows along the curved plate to the main tank.
  • the curved plate has a wavy curved surface
  • the curved plate The bumps of the wavy curved surface cause most of the gas impurities in the oil to be precipitated, and the purified oil flows into the main oil tank through the other end of the curved plate, further purifying the oil and reducing the gas in the oil entering the centrifuge cylinder.
  • the content greatly improves the service life of the centrifuge cylinder and the working efficiency of the equipment degassing.
  • the upper end surface of the shaft shaft connecting the outer end of the threaded pipe of the present invention is provided with an oil receiving groove, and the bottom surface of the oil receiving groove is gradually spiraled from the shallow groove to the deep groove in the axial direction, so that the liquid is quickly discharged, thereby avoiding
  • the overflowing portion is provided with an oil retaining ring at the intersection of the shallow groove and the deep groove, and a bottom surface of the deep groove on one side of the oil retaining ring is provided with an oil return hole, and the lower end of the oil return hole is connected with the connecting pipe for convenient and rapid collection.
  • the role of oil to avoid oil leakage, to ensure the performance of the equipment.
  • the invention can be provided with a top plate on the outer side of the circlip tensioning groove of the cylinder body, the lower end of the top plate is perpendicularly fixedly connected with the bottom surface of the circlip spring tensioning groove of the cylinder body, and the two ends respectively are respectively connected with the circlip block tensioning groove side
  • the wall is fixedly connected, and the outer side of the circlip block is in contact with the top plate to achieve the function of tightening and positioning the circlip, thereby solving the stress concentration caused by the circlip block on the side wall of the circlip of the centrifugal tube and forming a gap.
  • the substantial technical problem is that, when installing, the centrifugal cylinder is sleeved on the butterfly skeleton, and the circlip tensioning groove of the centrifugal cylinder is aligned with the positioning slot of the butterfly skeleton, and then the circlip pliers is used.
  • the outer end of the circlip is caught in the groove of the circlip, and the upper end is in contact with the butterfly frame.
  • the circlips at the two ends of the circlip are caught in the yoke block tensioning groove of the cylinder and the positioning card slot of the butterfly frame.
  • the outer side of the circlip block is in contact with the top plate, so that the centrifugal cylinder solves the substantial technical problem of the stress concentration caused by the circlip block on the side wall of the circlip tensioning groove of the centrifugal tube during the high-speed rotation.
  • the invention can be provided with an inspection port at the bottom of the main oil tank, and the inspection port is sealed and connected with the main oil tank through the inspection port flange, so as to facilitate the maintenance of the equipment.
  • the invention adopts the above structure, has novel structure, energy saving and environmental protection, precise control, low failure rate and work efficiency. High rate and other advantages.
  • Figure 1 is a schematic view of the structure of the present invention.
  • FIG. 2 is a schematic illustration of the external receiving of the fuel tank of the present invention.
  • Figure 3 is a cross-sectional view of Figure 2 .
  • Figure 4 is a schematic view showing the structure of a shaft base in the present invention.
  • Figure 5 is a schematic view showing the structure of a centrifugal cylinder in the present invention.
  • Figure 6 is a partial view of Figure 5.
  • Fig. 7 is a schematic structural view of a butterfly skeleton in the present invention.
  • Figure 8 is a schematic view showing the structure of a liquid level gauge in the present invention.
  • a centrifugal oil purification device comprises a central shaft, a centrifugal cylinder, a shaft seat 12, a rotating frame, a disc guide, a collecting impeller, a rotating wheel, a vacuum pump 36, and an oil outlet pipe.
  • oil inlet pipe, drain box, container box, fuel tank 1 and PLC controller 29 central shaft, centrifugal cylinder, shaft seat 12, rotating frame, disc guide, oil collecting impeller, rotating wheel, vacuum pump 36, oil outlet pipe
  • the connection relationship between the oil inlet pipe, the oil draining box, the storage box, the fuel tank 1 and the PLC controller 29 can be the same as that of the prior art. It is not described here, and the fuel tank case 1 is provided with an alarm oil tank 11 at the top.
  • the alarm tank 11 is provided with a liquid level meter.
  • the upper part of the alarm oil tank 11 above the liquid level gauge is provided with an oil inlet port, and the lower part of the alarm oil tank 11 is provided with an oil outlet, the oil inlet port.
  • the present invention can be provided with oil discharge on the connecting oil passage 27 between the drain box 25 and the dirt box 26.
  • the electromagnetic valve 28 is recovered, and the oil recovery and recovery solenoid valve 28 is connected with the PLC controller 29 to ensure that the entire oil recovery system is in a sealed state, and the negative pressure state is always maintained in the dirt collection box, and the control is accurate and the failure rate is low.
  • the utility model has the advantages of high work efficiency, energy saving and environmental protection.
  • the liquid level meter of the present invention is composed of a liquid level gauge base 30, a liquid level gauge rod 31, a float 32 and a snap spring 33, and the liquid level gauge base 30 and the float 32
  • the liquid level gauge rod 31 is composed of a straight rod section 34 having a diameter of 8 mm and a straight rod section 35 having a diameter of 6 mm from top to bottom, and the liquid level gauge base is disposed on a straight rod section having a diameter of 8 mm.
  • the float is arranged on a straight rod section with a diameter of 6 mm.
  • the liquid level gauge sends a liquid level upper limit signal to the PLC controller.
  • the PLC controller determines the operating state of the centrifuge tube, if the centrifuge tube When it is in a stopped state, the upper limit signal is retained until the centrifuge reaches the set number of revolutions and the outlet pressure is greater than 0.01.
  • the negative pressure value in the dirt collection box reaches the ability to recover the oil in the drain box, and the drain recovery solenoid valve opens.
  • the oil in the drain box is under the pressure of atmospheric pressure, and is passed through the drain valve through the drain box to be recycled by the pollution box.
  • the drain tank level The output lower limit signal is output to the PLC controller, and the PLC controller commands the drain recovery solenoid valve to be turned off, and the drain recovery work is terminated.
  • the present invention can be provided with a bubble removing device in the casing 1, which comprises a curved plate 2 and a baffle 3, which is slanted in the casing 1 and will be
  • the casing 1 is divided into a main oil tank 4 and an auxiliary oil tank 5, so that an upper wide and a narrow cavity is formed in the auxiliary oil tank 5, which is favorable for the solid impurities to flow down the baffle 3, and the top of the oil tank 5 is connected with the oil inlet pipe 6.
  • the bottom portion is provided with an impurity discharge port 7.
  • the upper portion of the main oil tank 4 is provided with a curved plate 2 at the horizontal level, the bottom portion is provided with a draining nozzle 8, and the bottom portion of one side is provided with an oil discharge pipe 9, and the curved plate 2 has a wavy curved surface.
  • One end of the curved plate 2 is fixedly connected with the deflector 3, and when the oil in the oil tank 5 is higher than the flow of the deflector 3 to the curved plate 2, the oil is turned by the wavy curved surface on the curved plate 2. The gas impurities are precipitated, and the purified oil flows into the main oil tank 4 through the other end of the curved plate 2.
  • the customer oil enters the fuel tank of the main oil tank body under the action of the oil suction vacuum pump.
  • the oil gradually rises along the deflector.
  • the oil flows into the main tank along the curved plate.
  • the curved plate has a wavy curved surface, and most of the gas impurities in the oil are precipitated by the wavy curved surface on the curved plate, and the purified oil flows into the main oil tank through the other end of the curved plate, thereby further purifying the oil.
  • the gas content in the oil entering the centrifuge cylinder is reduced, which greatly improves the service life of the centrifugal cylinder and the working efficiency of the equipment degassing.
  • the upper end surface of the outer shaft connecting the threaded pipe 15 of the shaft base 12 of the present invention is provided with an oil receiving groove 14, and the bottom surface of the oil receiving groove 14 is spirally formed in the axial direction from a shallow groove to a deep groove.
  • the oil sump 16 is provided at the intersection of the shallow groove and the deep groove
  • the oil sump 13 is provided on the bottom surface of the deep groove on the side of the slinger 16
  • the lower end of the oil hole 13 is connected with the connecting pipe to achieve the function of conveniently collecting the oil quickly, avoiding oil leakage and ensuring the performance of the device.
  • the present invention can be provided with a top plate 24 outside the circlip block tensioning groove 22 of the cylindrical body 17, and the lower end of the top plate 24 and the circlip block tensioning groove of the cylindrical body 17 22
  • the bottom surface is vertically fixedly connected, and the two ends are respectively fixedly connected with the side wall of the circlip block tensioning groove 22, and the outer side of the circlip block 20 is in contact with the top plate 24 to achieve the function of tightening and positioning the circlip, thereby solving the circlip.
  • the spring block tensioning groove 22 is aligned with the positioning slot of the butterfly frame 18, and then the outer end of the card spring is clamped in the spring groove 21 by the circlip pliers, and the upper end is in contact with the butterfly frame 18, the circlip
  • the circlip block 20 at the two ends is caught in the circlip tensioning groove 22 of the cylindrical body 17 and the positioning slot 23 of the butterfly frame 18, and the outer side of the circlip block 20 is in contact with the top plate 24, so that the centrifugal cylinder rotates at a high speed.
  • the substantial technical problem that the circlip block forms a gap by stress concentration caused by the side wall of the circlip tensioning groove of the centrifugal cylinder is solved.
  • the invention can be provided with an inspection port at the bottom of the main oil tank 4, and the inspection port is sealed and connected with the main oil tank through the inspection port flange 10, so as to facilitate the maintenance of the equipment.
  • the invention adopts the above structure, and has the advantages of novel structure, energy saving and environmental protection, precise control, low failure rate and high work efficiency.

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  • Chemical Kinetics & Catalysis (AREA)
  • Centrifugal Separators (AREA)

Abstract

一种离心油液净化装置，包括中心轴、离心筒、轴座（12）、旋转骨架、圆盘式导板、集油叶轮、转动轮、真空泵（36）、出油管（9）、进油管（6）、泄油盒（25）、纳物盒（26）、油箱和PLC控制器（29），油箱箱体（1）内顶部设有报警油箱（11），报警油箱（11）内设有液位计，液位计上方的报警油箱（11）一侧上部设有进油口，下方的报警油箱（11）一侧下部设有出油口，进油口经进油管（6）与离心筒相连通。

Description

离心油液净化装置 技术领域
本发明涉及油液净化设备技术领域，具体地说是一种离心油液净化装置。
背景技术
众所周知，为了节约能源，通常将使用过的油液通过油液净化设备进行处理，将油液中的固体颗粒和气体颗粒分离出，进行再利用。
经检索，CN 101648166 B公开了一种高精细离心式油液净化机的发明专利，包括摄取软管、齿轮泵、离心机、纳污池、电机以及出油管，摄取软管与离心机的输入接口连接形成进油管路，离心机的输出接口与出油管连接形成出油管路，高精细离心式油液净化机具有PLC控制器、通流阀、压力传感器、温度传感器、可调单向阀，PLC控制器根据压力传感器与温度传感器检测的压力及温度的信息控制齿轮泵、单向阀以及电机。这种结构的工作过程为：齿轮泵将客户油箱油液经进口管路输送至静止的离心桶入口，从离心桶出口处排出离心桶内空气，但顶部不能完全排除，并经定时设定开启离心桶电机，离心桶高速旋转，油液在离心筒作用下吸附在离心筒内的环形滤网上，干净的油液从顶部静止叶轮处将高速旋转的动压头转换为静压头，从离心桶出油口排出，工作中温度、压力传感器作为检测元件，异常情况发生时立即停机，保护设备不受损坏。油液净化效果差时，可通过手动阀门切换油路通道，将离心桶出油口与离心桶进油口相连，油液多次通过离心桶净化达到精细过滤的目的，其实质性不足是：一是主油路中存在大流量齿轮泵，即所述齿轮泵采用至少4KW的大功率，对油液的扰动较大，加快含水油液乳化。耗能较大，不符合节能环保的要求。
二是离心桶内空气排出没有可靠的信号检测，通过经验值设定齿轮泵工作3-5分钟后开启离心桶驱动电机，此方法不可靠；现场试验得知，油液流动速度受温度、粘度及通流面积的影响较大。离心桶内空气排放不完全影响效率及效果。
三是不能消除油液内混有的空气。
四是不能破乳化。
五是离心桶内有滤芯，存在耗材，且滤芯在高速旋转时寿命影响很大。
六是二次净化回路使油液摩擦生热，温度升高。且二次净化回路需人工操作开启和关闭，操作不便。
而索通公司公开的专利号为2011100475331，专利名称为离心油液净化机的发明专利，其包括控制系统、中心轴、离心筒、轴座体、旋转骨架、圆盘式导板、集油叶轮、转动轮、 电机、出油管、进油管、泄油盒和油箱，离心筒内轴心设有中心轴，所述中心轴下半部经导套固定有轴座体，中心轴上端固定有集油叶轮，中心轴上套有旋转骨架，旋转骨架由套筒及支撑杆组成，套筒套装在中心轴上套筒两端为密封状态，套筒外侧壁经两岸固定有多根与中心轴平行的支撑杆，支撑杆下端与前端盖的凹形内腔面固定，旋转骨架上自下而上依次套有多个凹形的圆盘式导板，相邻的导板之间有一定间隔，前端盖外侧面与离心筒下半部相固定，离心筒的下端固定有转动轮，上端设有与中心轴内腔相连通的出油管，转动轮与电机相连接，前端盖内腔相邻的两个叶片之间从底部与排污管和进油管相连通，进油管与油箱相连通，该发明中的主油路无需齿轮泵供油，离心筒底部径向叶片在高速旋转时产生抽真空效应，使油液在大气压作用下平稳的涌流入离心筒，无冲击，无额外耗能，不会加速油液乳化。并且，采用钛合金碟片，能剪破油液和水分子链的链接，打破油包水的油膜，将乳化水释放出来，有效破乳化。虽然解决了上述问题，但还存在如下不足：
一是由于油箱为净油机的流量缓冲装置，在油箱里进行油气分离，被净化的油液首先进入油箱，再经油箱底部进入净化筒，在油液净化过程中，通常采用泄油盒对泄露的油液或者排气完成后从附油箱自动流下来的油液进行收集，当泄油盒内的油液充满时，泄油盒内的油液再返回到闭式油箱中进行重新净化，而现有的离心筒泄油盒的液位检测有的采用机械式浮球检测液位，浮球通过杠杆控制单向阀的开闭，浮球到达上位，单向阀被打开，液体从单向阀回收至纳污盒，其缺点是不能自动判断纳污盒内负压值，正常工作时泄油盒内液位被保持在临界液位，回收工作频繁开启和关闭，易混进气体进入纳污盒引起掉压，导致浮球使用中存在不灵敏和单向阀管断不可靠的问题，故障率高，工作效率低。有的是通过在泄油盒内设有液位计来控制，当泄油盒内的油液到达上位时，液位计将信息上传至控制系统，控制系统指令泄油电机动作，将泄油盒内的油液通过卸油泵抽到油箱内，然后再重新净化，当泄油盒内的油液到达下位时，说明泄油盒内的油液抽干净，泄油电机停止工作，其缺点是泄油泵能耗大，不能达到节能环保的目的。
二是离心筒下端经密封装置与轴座体密封连接，其包括轴座体、石墨环座、石墨环、密封骨架和旋转骨架，轴座体上端设有接油槽，所述接油槽一侧经出油管路与泄油盒相连通，所述接油槽为水平凹槽，所述石墨环座与轴座体的中心轴连接螺纹管螺纹连接，所述石墨环座上端设有石墨环，所述石墨环座外部套接有旋转骨架，旋转骨架经密封骨架与石墨环配合，通过旋转骨架带动密封骨架高速旋转，是密封骨架与石墨环之间产生油膜，进而形成油密封，其实质性不足是：在长期的高速旋转过程中，石墨环与密封骨架之间产生摩擦，间隙越来越大，油液的泄流量大于接油槽的出油量时，油液则顺着间隙泄露到离心筒外面，致使设备的 使用性能很差，经常修理，导致生产效率极低。
三是在离心筒高速离心旋转过程中，由于卡簧块对离心筒的卡簧块张紧槽造成的应力集中，致使卡簧块对卡簧块张紧槽侧壁造成破坏而形成缺口，导致离心筒与蝶形骨架密封固定失败。
四是离心式净油机在净化油液时，通常将待净化的油液先泵入到油箱中，通过在油箱一侧设有的底部与油箱相连通的透明管观察油箱内的液位达到一定高度时，再启动离心筒运转，油液中气泡会随着循环泵泵入到离心筒中，不但大大离心筒的寿命，而且还需要操作人员专门观察透明管内的注油情况，进而增大了用工成本。
发明内容
本发明的目的是解决上述现有技术的不足，提供一种结构新颖、性能稳定、生产效率高、节能环保、自动化程度高的离心油液净化装置。
本发明解决其技术问题所采用的技术方案是：
一种离心油液净化装置，包括中心轴、离心筒、轴座、旋转骨架、圆盘式导板、集油叶轮、转动轮、真空泵、出油管、进油管、泄油盒、纳物盒、油箱和PLC控制器，其特征在于所述油箱箱体内顶部设有报警油箱，所述报警油箱内设有液位计，所述液位计上方的报警油箱一侧上部设有进油口，下方的报警油箱一侧下部设有出油口，所述进油口经进油管与离心筒相连通，当设备开机后，真空泵打开，客户油在吸油真空泵作用下进入油箱箱体，油箱箱体充满油以后，阀门切换到报警油箱，当报警油箱内的液位计感应到油液充满时，即表明离心筒和碟片之间的气体被排出，液位计将感应的信息上传至控制系统，控制系统自动指令离心筒电机带动离心筒在离心力作用下开始旋转，解决了操作人员专门观察油位的实质性不足。
如附图1所示，本发明可在所述泄油盒和纳污盒间的连接油路上设有卸油回收电磁阀，所述泄油回收电磁阀与PLC控制器相连接，以使整个油液回收系统处于密封状态，保证纳污盒内始终处于负压状态，达到控制精确、故障率低、工作效率高、节能环保的作用。
本发明所述液位计是由液位计底座、液位计杆、一个浮子和卡簧组成，所述液位计底座和浮子之间的液位计杆由上至下依次由直径为8mm的直杆段和直径为6mm的直杆段5构成，所述液位计底座设在直径为8mm的直杆段上，所述浮子设在直径为6mm的直杆段上，通过对液位计杆的形状进行改进，大大降低了本发明中在油液中上下浮动过程中的摩擦阻力，提高了本发明在油液中对液位检测的灵敏度，在工作时，泄油盒内的液位到达液位计上限时，液位计发送液位上限信号至PLC控制器，PLC控制器在接收到上限信号后，判断离心筒运行状态，若离心筒处于停止状态，则上限信号保留，直至离心筒达到设定转数且出口压力 大于0.01，此时，纳污盒内负压值达到回收泄油盒内油液的能力，泄油回收电磁阀打开，泄油盒内油液在大气压的压力下，经泄油盒穿过泄油回收电磁阀被纳污盒回收利用，当泄油盒内油液液位下降至下限时，泄油盒液位计输出下限信号至PLC控制器，PLC控制器指令泄油回收电磁阀关断，泄油回收工作终止。
本发明可在所述箱体内设有气泡去除装置，其包括曲线板和导流板，所述导流板倾斜树立在箱体内，将箱体分割成主油箱和附油箱，使附油箱内形成上宽下窄的空腔，有利于固体杂质顺着导流板下流，所述附油箱顶部与进油管相连通，底部设有杂质排出口，所述主油箱内上部的水平设有曲线板，底部设有放油嘴，一侧底部设有出油管，所述曲线板呈波浪形曲面，所述曲线板一端与导流板固定连接，当附油箱内的油高于导流板流到曲线板上时，经曲线板上的波浪形曲面的颠簸，将油中的气体杂质被析出，净化后的油液经曲线板2的另一端流入主油箱4内，当混有空气的油液进入时，客户油在吸油真空泵作用下进入主油箱箱体内的附油箱，油液沿着导流板逐渐升高，当油液高于导流板上，油液沿着曲线板往主油箱流入，因曲线板成波浪形曲面，经曲线板上的波浪形曲面的颠簸，将油中的气体杂质大部分被析出，净化后的油液经曲线板的另一端流入主油箱内，进一步净化了油液，减少进入离心筒的油液中的气体含量，大大提高了离心筒的使用寿命和设备除气的工作效率。
本发明所述轴座的中心轴连接螺纹管外部的上端面设有接油槽，所示接油槽的底面沿轴向呈螺旋状逐渐由浅槽到深槽逐渐过渡，以使积液快速流出，避免外溢，所述浅槽和深槽的交汇处设有挡油环，挡油环一侧的深槽底面设有回油孔，所述回油孔下端与连接管路连接，以达到方便快速收集油液的作用，避免漏油，保证了设备的使用性能。
本发明可在所述筒体的卡簧块张紧槽外侧设有顶板，所述顶板下端与筒体的卡簧块张紧槽底面垂直固定连接，两端分别与卡簧块张紧槽侧壁固定连接，所述卡簧块外侧与顶板相抵触，以达到顶紧和定位卡簧的作用，解决了卡簧块对离心筒的卡簧块张紧槽侧壁造成的应力集中而形成缺口的实质性技术问题，安装时，将离心筒筒体套在蝶形骨架上，经离心筒筒体的卡簧块张紧槽与蝶形骨架的定位卡槽对齐，然后再用卡簧钳将卡簧外端卡在卡簧凹槽内，上端与蝶形骨架相抵触，所述卡簧两端的卡簧块卡在筒体的卡簧块张紧槽和蝶形骨架的定位卡槽内，卡簧块外侧与顶板相抵触，使得离心筒在高速旋转过程中，解决了卡簧块对离心筒的卡簧块张紧槽侧壁造成的应力集中而形成缺口的实质性技术问题。
本发明可在所述主油箱底部设有检查口，所述检查口经检查口法兰与主油箱密封连接，以达到方便设备保养的作用。
本发明由于采用上述结构，具有结构新颖、节能环保、控制精确、故障率低、工作效 率高等优点。
附图说明
图1是本发明的结构示意图。
图2是本发明油箱的外部接收示意图。
图3是图2的剖视图。
图4是本发明中轴座的结构示意图。
图5是本发明中离心筒的结构示意图。
图6是图5的局部视图。
图7是本发明中蝶形骨架的结构示意图。
图8是本发明中液位计的结构示意图。
附图标记：箱体1、曲线板2、导流板3、主油箱4、附油箱5、进油管6、杂质排出口7、放油嘴8、出油管9、检查口法兰10、报警油箱11、轴座12回油孔13接油槽14、挡油环16螺纹管15筒体17蝶形骨架18卡簧19卡簧块20卡簧凹槽21卡簧块张紧槽22定位卡槽23顶板24泄油盒25和纳污盒26间的连接油路27上设有卸油回收电磁阀28，所述泄油回收电磁阀28与PLC控制器29液位计底座30、液位计杆31、一个浮子32和卡簧33组成，8mm的直杆段34和直径为6mm的直杆段35真空泵36。
具体实施方式
下面结合附图对本发明进一步说明：
如附图1、2、3所示，一种离心油液净化装置，包括中心轴、离心筒、轴座12、旋转骨架、圆盘式导板、集油叶轮、转动轮、真空泵36、出油管、进油管、泄油盒、纳物盒、油箱1和PLC控制器29，中心轴、离心筒、轴座12、旋转骨架、圆盘式导板、集油叶轮、转动轮、真空泵36、出油管、进油管、泄油盒、纳物盒、油箱1和PLC控制器29的连接关系可与现有技术相同，此不赘述，其特征在于所述油箱箱体1内顶部设有报警油箱11，所述报警油箱11内设有液位计，所述液位计上方的报警油箱11一侧上部设有进油口，下方的报警油箱11一侧下部设有出油口，所述进油口经进油管与离心筒相连通，当设备开机后，真空泵打开，客户油在吸油真空泵作用下进入油箱箱体，油箱箱体充满油以后，阀门切换到报警油箱，当报警油箱内的液位计感应到油液充满时，即表明离心筒和碟片之间的气体被排出，液位计将感应的信息上传至控制系统，控制系统自动指令离心筒电机带动离心筒在离心力作用下开始旋转，解决了操作人员专门观察油位的实质性不足。
如附图1所示，本发明可在所述泄油盒25和纳污盒26间的连接油路27上设有卸油 回收电磁阀28，所述泄油回收电磁阀28与PLC控制器29相连接，以使整个油液回收系统处于密封状态，保证纳污盒内始终处于负压状态，达到控制精确、故障率低、工作效率高、节能环保的作用，本发明所述液位计是由液位计底座30、液位计杆31、一个浮子32和卡簧33组成，所述液位计底座30和浮子32之间的液位计杆31由上至下依次由直径为8mm的直杆段34和直径为6mm的直杆段35构成，所述液位计底座设在直径为8mm的直杆段上，所述浮子设在直径为6mm的直杆段上，通过对液位计杆的形状进行改进，大大降低了本发明中在油液中上下浮动过程中的摩擦阻力，提高了本发明在油液中对液位检测的灵敏度。在工作时，泄油盒内的液位到达液位计上限时，液位计发送液位上限信号至PLC控制器，PLC控制器在接收到上限信号后，判断离心筒运行状态，若离心筒处于停止状态，则上限信号保留，直至离心筒达到设定转数且出口压力大于0.01，此时，纳污盒内负压值达到回收泄油盒内油液的能力，泄油回收电磁阀打开，泄油盒内油液在大气压的压力下，经泄油盒穿过泄油回收电磁阀被纳污盒回收利用，当泄油盒内油液液位下降至下限时，泄油盒液位计输出下限信号至PLC控制器，PLC控制器指令泄油回收电磁阀关断，泄油回收工作终止。
如附图2、3所示，本发明可在所述箱体1内设有气泡去除装置，其包括曲线板2和导流板3，所述导流板倾斜树立在箱体1内，将箱体1分割成主油箱4和附油箱5，使附油箱5内形成上宽下窄的空腔，有利于固体杂质顺着导流板3下流，所述附油箱5顶部与进油管6相连通，底部设有杂质排出口7，所述主油箱4内上部的水平设有曲线板2，底部设有放油嘴8，一侧底部设有出油管9，所述曲线板2呈波浪形曲面，所述曲线板2一端与导流板3固定连接，当附油箱5内的油高于导流板3流到曲线板2上时，经曲线板2上的波浪形曲面的颠簸，将油中的气体杂质被析出，净化后的油液经曲线板2的另一端流入主油箱4内，当混有空气的油液进入时，客户油在吸油真空泵作用下进入主油箱箱体内的附油箱，油液沿着导流板逐渐升高，当油液高于导流板上，油液沿着曲线板往主油箱流入，因曲线板成波浪形曲面，经曲线板上的波浪形曲面的颠簸，将油中的气体杂质大部分被析出，净化后的油液经曲线板的另一端流入主油箱内，进一步净化了油液，减少进入离心筒的油液中的气体含量，大大提高了离心筒的使用寿命和设备除气的工作效率。
如附图4所示，本发明所述轴座12的中心轴连接螺纹管15外部的上端面设有接油槽14，所示接油槽14的底面沿轴向呈螺旋状逐渐由浅槽到深槽逐渐过渡，以使积液快速流出，避免外溢，所述浅槽和深槽的交汇处设有挡油环16，挡油环16一侧的深槽底面设有回油孔13，所述回油孔13下端与连接管路连接，以达到方便快速收集油液的作用，避免漏油，保证了设备的使用性能。
如附图5、6、7所示，本发明可在所述筒体17的卡簧块张紧槽22外侧设有顶板24，所述顶板24下端与筒体17的卡簧块张紧槽22底面垂直固定连接，两端分别与卡簧块张紧槽22侧壁固定连接，所述卡簧块20外侧与顶板24相抵触，以达到顶紧和定位卡簧的作用，解决了卡簧块对离心筒的卡簧块张紧槽侧壁造成的应力集中而形成缺口的实质性技术问题，安装时，将离心筒筒体17套在蝶形骨架上，经离心筒筒体17的卡簧块张紧槽22与蝶形骨架18的定位卡槽对齐，然后再用卡簧钳将卡簧外端卡在卡簧凹槽21内，上端与蝶形骨架18相抵触，所述卡簧19两端的卡簧块20卡在筒体17的卡簧块张紧槽22和蝶形骨架18的定位卡槽23内，卡簧块20外侧与顶板24相抵触，使得离心筒在高速旋转过程中，解决了卡簧块对离心筒的卡簧块张紧槽侧壁造成的应力集中而形成缺口的实质性技术问题。
本发明可在所述主油箱4底部设有检查口，所述检查口经检查口法兰10与主油箱密封连接，以达到方便设备保养的作用。
本发明由于采用上述结构，具有结构新颖、节能环保、控制精确、故障率低、工作效率高等优点。

Claims (7)

  1. 一种离心油液净化装置，包括中心轴、离心筒、轴座、旋转骨架、圆盘式导板、集油叶轮、转动轮、真空泵、出油管、进油管、泄油盒、纳物盒、油箱和PLC控制器，其特征在于所述油箱箱体内顶部设有报警油箱，所述报警油箱内设有液位计，所述液位计上方的报警油箱一侧上部设有进油口，下方的报警油箱一侧下部设有出油口，所述进油口经进油管与离心筒相连通。
  2. 根据权利要求1所述的一种离心油液净化装置，其特征在于所述泄油盒和纳污盒间的连接油路上设有卸油回收电磁阀，所述泄油回收电磁阀与PLC控制器相连接。
  3. 根据权利要求1所述的一种离心油液净化装置，其特征在于所述液位计是由液位计底座、液位计杆、一个浮子和卡簧组成，所述液位计底座和浮子之间的液位计杆由上至下依次由直径为8mm的直杆段和直径为6mm的直杆段5构成，所述液位计底座设在直径为8mm的直杆段上，所述浮子设在直径为6mm的直杆段上。
  4. 根据权利要求1所述的一种离心油液净化装置，其特征在于所述箱体内设有气泡去除装置，其包括曲线板和导流板，所述导流板倾斜树立在箱体内，将箱体分割成主油箱和附油箱，使附油箱内形成上宽下窄的空腔，所述附油箱顶部与进油管相连通，底部设有杂质排出口，所述主油箱内上部的水平设有曲线板，底部设有放油嘴，一侧底部设有出油管，所述曲线板呈波浪形曲面，所述曲线板一端与导流板固定连接。
  5. 根据权利要求1所述的一种离心油液净化装置，其特征在于所述轴座的中心轴连接螺纹管外部的上端面设有接油槽，所示接油槽的底面沿轴向呈螺旋状逐渐由浅槽到深槽逐渐过渡，所述浅槽和深槽的交汇处设有挡油环，挡油环一侧的深槽底面设有回油孔，所述回油孔下端与连接管路连接。
  6. 根据权利要求1所述的一种离心油液净化装置，其特征在于所述筒体的卡簧块张紧槽外侧设有顶板，所述顶板下端与筒体的卡簧块张紧槽底面垂直固定连接，两端分别与卡簧块张紧槽侧壁固定连接，所述卡簧块外侧与顶板相抵触。
  7. 根据权利要求4所述的一种离心油液净化装置，其特征在于所述主油箱底部设有检查口，所述检查口经检查口法兰与主油箱密封连接。
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