CN111249798B - Negative pressure ultrafiltration membrane filtering device and use method thereof - Google Patents
Negative pressure ultrafiltration membrane filtering device and use method thereof Download PDFInfo
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- CN111249798B CN111249798B CN202010180390.0A CN202010180390A CN111249798B CN 111249798 B CN111249798 B CN 111249798B CN 202010180390 A CN202010180390 A CN 202010180390A CN 111249798 B CN111249798 B CN 111249798B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M175/00—Working-up used lubricants to recover useful products ; Cleaning
- C10M175/06—Working-up used lubricants to recover useful products ; Cleaning by ultrafiltration or osmosis
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Abstract
本发明公开一种负压式超滤膜过滤设备，包括设备安装架、进油主管、出油主管，初滤罐、第一输油泵、加热罐、储油罐、超滤膜过滤箱装置、真空罐组件、第二输油泵依次管路相连并都固定安装在设备安装架上，初滤罐与进油主管管路相连，第二输油泵输出端与出油主管管路相连，设备安装架上还固定安装有控制箱，本发明设备利用真空负压反向吸取并过滤油液，解决了油液中的杂质微粒容易堆积在滤材上造成滤芯报废的难题，可将高精度的超滤膜滤材应用于各类工业润滑油的过滤，克服了现有过滤技术对过滤精度无法再提高的局限，提升了油品过滤后的清洁度，确保了各类设备的润滑性能和使用寿命，同时还实现了对于滤材的降耗增效的目的。
The present invention discloses a negative pressure ultrafiltration membrane filtering device, comprising an equipment mounting frame, an oil inlet main pipe, an oil outlet main pipe, a primary filter tank, a first oil pump, a heating tank, an oil storage tank, an ultrafiltration membrane filtering box device, a vacuum tank assembly, and a second oil pump, which are connected in sequence by pipelines and are all fixedly mounted on the equipment mounting frame, the primary filter tank is connected to the oil inlet main pipe, the output end of the second oil pump is connected to the oil outlet main pipe, and a control box is also fixedly mounted on the equipment mounting frame. The equipment of the present invention utilizes vacuum negative pressure to reversely absorb and filter oil, thereby solving the problem that impurity particles in the oil are easily accumulated on the filter material, causing the filter element to be scrapped, and high-precision ultrafiltration membrane filter materials can be applied to the filtering of various industrial lubricating oils, thereby overcoming the limitation of the existing filtering technology that the filtering precision cannot be further improved, improving the cleanliness of the oil after filtration, ensuring the lubrication performance and service life of various equipment, and at the same time achieving the purpose of reducing the consumption and increasing the efficiency of the filter material.
Description
Technical Field
The invention relates to the technical field of oil filtering equipment manufacturing, in particular to negative pressure type ultrafiltration membrane filtering equipment and a using method thereof.
Background
At present, when various industrial lubricating oils such as gear oil, hydraulic oil, insulating oil, turbine oil and the like are treated by the known regeneration method, pipeline filtration, box type filter pressing, aggregation separation, centrifugal filtration and the like are often adopted, and the common characteristics are that the positive pressure filtration of an oil delivery pump is adopted, the accuracy of the selected filter material is generally not more than 3 microns, the higher the accuracy of the filter material is, the higher the flowing resistance of the oil is, the lower the filtration efficiency is, the particles impurities in the flowing oil, which are more than the accuracy of the filter material, can be rapidly aggregated and block the filter material due to the positive pressure output of the oil delivery pump, and the particles blocked in the filter material are extremely difficult to clean due to the high accuracy of the filter material, the filter material can only be scrapped, so that the higher the accuracy of the filter material is, the higher the consumption of the filter material is, and the higher the use cost is, so that the industry is general.
Meanwhile, because the accuracy of the filtering material is limited, the filtering material widely applied at present cannot filter colloid oxide and other impurities suspended in oil liquid and with the particle diameter of more than 3 microns, so that the cleanliness of the oil product after filtration cannot be further improved, and the lubricating performance and the service life of various equipment are further influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides negative pressure type ultrafiltration membrane filtering equipment and a using method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a negative pressure type milipore filter filtration equipment, includes equipment mounting bracket, just strain jar, first petroleum pump, heating jar, oil storage tank, milipore filter rose box device, vacuum tank subassembly, second petroleum pump, advances oil pipe and be responsible for, go out the oil pipe, just strain jar, first petroleum pump, heating jar, oil storage tank, milipore filter rose box device, vacuum tank subassembly, second petroleum pump link to each other and all fixed mounting on the equipment mounting bracket in proper order pipeline, just strain jar and advance oil pipe and link to each other, second petroleum pump output links to each other with the oil pipe that is responsible for, still fixed mounting has the control box on the equipment mounting bracket.
And a plurality of travelling wheels are arranged at the bottom of the equipment installation frame.
The filter bag is installed in the primary filter tank, the primary filter tank upper end is equipped with primary filter tank oil inlet pipe, primary filter tank oil inlet pipe links to each other with the oil feed main pipe pipeline, install primary filter tank oil inlet solenoid valve on primary filter tank oil inlet pipe and the oil feed main pipe pipeline, primary filter tank bottom is equipped with primary filter tank oil-out, primary filter tank top is installed primary filter tank breather valve, primary filter tank oil-out links to each other with first oil transfer pump input pipeline, install the heating rod in the heating tank, the heating tank bottom is equipped with the heating tank oil inlet pipe, the heating tank oil inlet pipe links to each other with first oil transfer pump output pipeline, the heating tank top is equipped with the heating tank oil outlet pipe, the oil storage tank upper end is equipped with the oil storage tank oil inlet pipe, the oil storage tank oil inlet pipe links to each other with the heating tank oil outlet pipe pipeline, the oil storage tank bottom is equipped with the oil storage tank oil outlet pipe, install the gassing valve on the oil storage tank lateral wall, install first oil storage tank oil storage window state in the first oil level control oil storage tank, the oil level control float ball is used for the oil storage tank is high level control oil storage tank is installed to the first oil level control pipe.
The ultrafiltration membrane filtration tank device comprises a filtration tank body, a filter element assembly, a filter element gland and a filter element locking cover assembly, wherein a tank top air outlet pipe is arranged at the top of the filtration tank body, a tank bottom air outlet pipe is arranged at the lower end of the side wall of the filtration tank body, two air inlet bent pipes are connected with the tank top air outlet pipe and the tank bottom air outlet pipe pipeline respectively, the highest height of the filtration tank body is lower than the lowest oil level control height of a first floating ball liquid level controller, a plurality of filter element mounting platforms which are uniformly distributed are arranged on the upper end face of the filtration tank body, the filter element assembly is arranged on the filter element mounting platform in a penetrating way, the filter element gland is tightly pressed on the filter element assembly and is in locking connection with the filter element mounting platform through the filter element locking cover assembly, the upper end of the filtration tank body is connected with an oil receiving ring groove along the outer side wall, a waste oil output pipe is connected to the oil receiving ring groove, a waste oil output valve is arranged on the waste oil output pipe, a filtration tank oil inlet pipe is connected with an oil storage tank oil outlet pipe pipeline, the filtration tank inlet pipe is arranged at the bottom of the filtration tank body, a filter tank inlet pipe is provided with a filter element inlet pipe, and an oil return pipe is connected with an oil tank inlet pipe, and an oil return pipe opening is connected with the primary filter tank inlet pipe.
The filter element assembly comprises a filter material fixing flange plate and a filter element filter material, the filter element filter material is fixedly arranged on the filter material fixing flange plate, filter element oil outlet holes are formed in the filter material fixing flange plate in a penetrating mode, sealing rings are respectively arranged on the upper end face and the lower end face of the filter material fixing flange plate, the top of a filter element gland is connected with a three-way pipe, the lower end of the three-way pipe is connected with the filter element gland, the left end and the right end of the three-way pipe are respectively provided with a filter tank oil outlet pipe orifice and a filter element backflushing air inlet pipe orifice, a filter element oil outlet electromagnetic valve is arranged on the filter tank oil outlet pipe orifice, a backflushing air inlet electric valve is arranged on the filter element backflushing air inlet pipe orifice, the filter element locking cover assembly comprises an upper locking seat, a lower locking seat and a locking screw rod, the upper locking seat is fixedly connected to the side edge of the filter element gland, the lower locking seat is fixedly connected to the side wall of a filter element mounting platform, the upper locking seat and the lower locking seat are arranged in a one-to-one mode, a screw motion groove is formed in the upper locking seat, a rotary pin is inserted on the lower locking seat in a rotating mode, and the locking seat is perpendicularly welded on the rotary pin shaft, and a threaded nut is arranged on the locking pin.
The vacuum tank assembly comprises a vacuum tank, a vacuum oil inlet tank and a vacuum pump, wherein the vacuum oil inlet tank is connected with a vacuum tank pipeline, an oil outlet pipe orifice pipeline of a filtering tank oil outlet pipe of a three-way pipe at the top of a filter element gland is connected to the vacuum oil inlet tank, a vacuum pressure gauge is installed on the vacuum oil inlet tank, a vacuum tank extraction opening is formed in the top of the vacuum tank, the vacuum tank extraction opening is connected with the vacuum pump pipeline, the vacuum pump is connected with a cooling water tank for circularly cooling the vacuum pump, an air filter is installed on the vacuum tank extraction opening and the vacuum pump connecting pipeline, a second floating ball liquid level controller is installed on the vacuum tank for controlling the height of an oil level in the vacuum tank, a vacuum tank air inlet pipe is further connected to the top of the vacuum tank, a vacuum tank air inlet electromagnetic valve is installed on the vacuum tank air inlet pipe, a vacuum tank oil outlet is arranged at the bottom of the vacuum tank, the vacuum tank oil outlet is connected with a second oil delivery pump input end pipeline, a second window is installed on the side wall of the vacuum tank for observing the state of the oil in the vacuum tank, and a second liquid level controller is installed on the side wall of the vacuum tank for observing the height of the vacuum tank.
The oil-saving device comprises a first oil transfer pump, a second oil transfer pump, a primary filter tank oil inlet electromagnetic valve, a first floating ball liquid level controller, a second floating ball liquid level controller, a vacuum tank air inlet electromagnetic valve, a recoil air inlet electric valve and a filter element oil outlet electromagnetic valve which are all connected to a control box in a line manner, wherein the control box is provided with an oil temperature control area, and the control box is provided with a plurality of control buttons.
The application method of the negative pressure type ultrafiltration membrane filtering equipment comprises the following steps:
1) The starting equipment is used for starting the primary filter tank oil inlet electromagnetic valve, starting the first oil delivery pump, and enabling oil to firstly enter the primary filter tank after being sucked from the oil inlet main pipe and filtering large-particle impurities through primary filtering of the filter bag;
2) Setting the oil temperature of an oil temperature control area of the control box to be 40 ℃, conveying the oil subjected to primary filtration into a heating tank through a first oil conveying pump, and heating the oil through a heating rod in the heating tank;
3) The heated oil flows into an oil storage tank, the oil level of the oil storage tank and the oil level of the filtering tank are synchronously raised due to the communication between the oil storage tank and the filtering tank of the ultrafiltration membrane filtering tank device, an oil return pipeline is arranged at the bottom of the filtering tank, the oil flows back into the primary filtering tank through the oil return pipeline at the same time, and the oil flows through the steps 1) and 2) again, so that the circulation is carried out until the temperature of the flowing oil rises to 40 ℃;
4) Starting a vacuum pump, vacuumizing the vacuum tank, filtering oil in the filter box body through the filter element component, outputting the filtered oil from the filter element oil outlet electromagnetic valve end of the three-way pipe at the top of the filter element gland into a vacuum oil inlet box, and finally flowing the filtered oil into the vacuum tank, wherein impurities filtered by the filter element component remain in the filter box body and on the surface of the filter element component;
5) The oil level in the vacuum tank rises, after the oil level rises to the oil level control position of the second floating ball liquid level controller, the second oil transfer pump is started, and filtered oil is output from the oil outlet main pipe;
6) The filter element backflushing air inlet pipe orifice of the three-way pipe at the top of the filter element gland is connected with an external air source, after a period of filtering operation, the filter element oil outlet electromagnetic valve of the three-way pipe at the top of the filter element gland is closed, the backflushing air inlet electric valve is opened, backflushing air enters from the filter element backflushing air inlet pipe orifice and reversely impacts the filter element assembly to blow off solid particle impurities adsorbed on the surface of the filter element filter material, the filtering effect of the filter element filter material is ensured, after the backflushing operation, the backflushing air inlet electric valve is closed, the filter element oil outlet electromagnetic valve is opened, and filtering liquid outlet operation is performed again;
7) And (3) repeating the steps 1) to 6), and continuously circularly filtering the oil.
The invention has the beneficial effects that the equipment utilizes vacuum negative pressure to reversely absorb and filter oil, solves the problem that the filter element is scrapped due to the fact that impurity particles in the oil are easily accumulated on the filter material, can apply the high-precision ultrafiltration membrane filter material to the filtration of various industrial lubricating oils, overcomes the limitation that the filtration precision can not be improved any more in the prior art, improves the cleanliness of the oil after filtration, ensures the lubricating performance and the service life of various equipment, and simultaneously achieves the aims of reducing consumption and enhancing efficiency of the filter material.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic diagram of the connection of the components of the present invention;
FIG. 4 is a schematic diagram of the connection structure of the primary filter tank of the present invention;
FIG. 5 is a schematic diagram of the connection structure of the heating tank of the present invention;
FIG. 6 is a schematic diagram of a tank connection structure according to the present invention;
FIG. 7 is a schematic view of the connection structure of the vacuum tank assembly of the present invention;
FIG. 8 is a schematic diagram of the structure of the ultrafiltration membrane filtration tank apparatus of the present invention;
Fig. 9 is an enlarged view at a in fig. 8;
FIG. 10 is a block diagram of the installation of a filter cartridge assembly of the present invention;
FIG. 11 is a three-dimensional block diagram of a cartridge assembly of the present invention;
fig. 12 is a schematic view of a cartridge lock cap assembly of the present invention.
In the figure: the device comprises an equipment mounting frame 1, a travelling wheel 101, a primary filter tank 2, a filter bag 21, a primary filter tank oil inlet pipe 22, a primary filter tank oil inlet electromagnetic valve 23, a primary filter tank oil outlet 24, a primary filter tank ventilation valve 25, a primary filter tank oil return pipe orifice 26, a first oil delivery pump 3, a heating tank 4, a heating rod 41, a heating tank oil inlet pipe 42, a heating tank oil outlet pipe 43, an oil storage tank 5, an oil storage tank oil inlet pipe 51, an oil storage tank oil outlet pipe 52, a gas discharge elbow 53, an air inlet elbow 54, a first window 55, a first liquid level pipe 56, a first floating ball liquid level controller 57, an ultrafiltration membrane filter tank device 6, a filter tank body 61, a tank top air outlet pipe 611, a tank bottom air outlet pipe 612, a filter element mounting platform 62, a filter element assembly 63, a filter material fixing flange plate 631, a filter element oil outlet 6311, a filter element 632, a sealing ring, a filter element gland 633, a three-way pipe 641, a filter tank oil outlet pipe 642, a filter element backflushing inlet pipe orifice 643 the filter cartridge oil outlet solenoid valve 644, the recoil air intake electric valve 645, the filter cartridge lock cover assembly 65, the upper lock seat 651, the screw motion groove 6511, the lower lock seat 652, the rotating pin 653, the lock screw 654, the eye nut 655, the oil receiving ring groove 66, the waste oil output pipe 661, the waste oil output valve 662, the filter tank oil inlet pipe 67, the filter tank oil inlet valve 671, the filter tank oil return pipe 68, the filter tank oil return valve 681, the vacuum tank assembly 7, the vacuum tank 71, the vacuum tank extraction opening 711, the vacuum tank oil outlet 712, the second window 713, the second liquid level pipe 714, the vacuum oil inlet tank 72, the vacuum pressure gauge 721, the vacuum pump 73, the cooling water tank 74, the air filter 75, the second float liquid level controller 76, the vacuum tank air inlet pipe 77, the vacuum tank air inlet solenoid valve 771, the second oil pump 8, the oil inlet main pipe 9, the oil outlet main pipe 10, the control tank 11, the oil temperature control area 111, and the control button 112.
Detailed Description
The invention is further described with reference to the drawings and detailed description, wherein the description of the invention such as "left" and "right" is directed to fig. 3:
As shown in fig. 1-12, a negative pressure ultrafiltration membrane filtration device comprises a device mounting frame 1, a primary filtration tank 2, a first oil transfer pump 3, a heating tank 4, an oil storage tank 5, an ultrafiltration membrane filtration tank device 6, a vacuum tank assembly 7, a second oil transfer pump 8, an oil inlet main pipe 9 and an oil outlet main pipe 10, wherein the primary filtration tank 2, the first oil transfer pump 3, the heating tank 4, the oil storage tank 5, the ultrafiltration membrane filtration tank device 6, the vacuum tank assembly 7 and the second oil transfer pump 8 are sequentially connected in a pipeline and are fixedly mounted on the device mounting frame 1, the primary filtration tank 2 is connected with the oil inlet main pipe 9 in a pipeline, the output end of the second oil transfer pump 8 is connected with the oil outlet main pipe 10 in a pipeline, and a control box 11 is fixedly mounted on the device mounting frame 1.
The bottom of the equipment installation frame 1 is provided with a plurality of travelling wheels 101, so that the whole equipment is convenient to move, and the equipment can be moved to the vicinity of the position where the oil to be filtered is located to directly carry out filtering operation.
The filter bag 21 is arranged in the primary filter tank 2, the filter bag 21 can filter large-particle solid impurities in oil, the upper end of the primary filter tank 2 is provided with a primary filter tank oil inlet pipe 22, the primary filter tank oil inlet pipe 22 is connected with an oil inlet main pipe 9 pipeline, the oil entering from the oil inlet main pipe 9 is filtered through the primary filter tank 2, a primary filter tank oil inlet electromagnetic valve 23 is arranged on the connecting pipeline of the primary filter tank oil inlet pipe 22 and the oil inlet main pipe 9, the primary filter tank oil inlet electromagnetic valve 23 can automatically control the opening and closing of the oil inlet pipeline, the bottom of the primary filter tank 2 is provided with a primary filter tank oil outlet 24, the top of the primary filter tank 2 is provided with a primary filter tank ventilation valve 25, the primary filter tank ventilation valve 25 is in a normally closed state, is opened when the filter bag 21 needs to be replaced, the primary filter tank oil outlet 24 is connected with the pipeline of the input end of the first oil pump 3, the filter tank 21 cannot be opened due to the suction of the top cover of the primary filter tank 2 caused by internal and external pressure difference, the heating tank 4 is internally provided with a heating rod 41, the bottom of the heating tank 4 is provided with a heating tank oil inlet pipe 42, the heating tank oil inlet pipe 42 is connected with an output end pipeline of the first oil delivery pump 3, the top of the heating tank 4 is provided with a heating tank oil outlet pipe 43, oil sucked from the first oil delivery pump 3 enters the heating tank 4, the heating tank 4 adopts a lower-inlet upper-outlet structural design, the heating rod 41 is immersed in the oil to prevent the heating tank 4 from being damaged by dry heating, the upper end of the oil storage tank 5 is provided with an oil storage tank oil inlet pipe 51, the oil storage tank oil inlet pipe 51 is connected with the heating tank oil outlet pipe 43, the heated oil flows into the oil storage tank 5, the bottom of the oil storage tank 5 is provided with an oil storage tank oil outlet pipe 52, the oil storage tank oil outlet pipe 52 is connected with an ultrafiltration membrane filter tank device 6, the top of the oil storage tank 5 is provided with a bleed elbow 53 for emptying air, a first window 55 is arranged on the side wall of the oil storage tank 5 for observing the state of the oil in the oil storage tank 5, the side wall of the oil storage tank 5 is provided with a first liquid level pipe 56 for observing the liquid level height of the oil storage tank 5, the oil storage tank 5 is provided with a first floating ball liquid level controller 57 for controlling the oil level height of the oil storage tank 5, the first floating ball liquid level controller 57 is in circuit interlocking control with the first oil transfer pump 3, when the liquid level of the oil storage tank 5 is lower than the oil level position controlled by the first floating ball liquid level controller 57, the first oil transfer pump 3 is continuously started to perform oil supplementing operation, and when the liquid level of the oil storage tank 5 rises to the oil level position controlled by the first floating ball liquid level controller 57, the first oil transfer pump 3 stops working to prevent the oil level of the oil storage tank 5 from overflowing excessively.
The ultrafiltration membrane filtration tank device 6 comprises a filtration tank body 61, a filter element assembly 63, a filter element gland 64 and a filter element locking cover assembly 65, a tank top air outlet pipe 611 is arranged at the top of the filtration tank body 61, a tank bottom air outlet pipe 612 is arranged at the lower end of the side wall of the filtration tank body 61, two air inlet bent pipes 54 are connected with the top air outlet pipe 611 and the tank bottom air outlet pipe 612 respectively through pipelines, the filtration tank body 61 and the oil tank 5 generate a communicating vessel effect, the highest height of the filtration tank body 61 is lower than the lowest oil level control height of the first floating ball liquid level controller 57, the filtration tank body 61 ensures the full oil state, the tank top air outlet pipe 611 and the tank bottom air outlet pipe 612 guide the air in the oil in the filtration tank body 61 into the oil tank 5 to be discharged through the air discharging bent pipe 53, no bubble phenomenon exists in the oil in the filtration tank body 61, thereby improving the filtration effect, the filter box body 61 is provided with a plurality of uniformly distributed filter element mounting platforms 62 on the upper end face, the filter element components 63 are inserted and mounted on the filter element mounting platforms 62 in a penetrating way, the filter element gland 64 is tightly pressed on the filter element components 63 and is in locking connection with the filter element mounting platforms 62 through the filter element locking cover components 65, the filter element components 63 are different from the traditional built-in mounting, an external tightly pressed sealing mounting structure design is adopted, the filter element components 63 are replaced and cleaned very conveniently, the upper end of the filter box body 61 is connected with an oil receiving ring groove 66 along the outer side wall in a circle, the oil receiving ring groove 66 is connected with a waste oil output pipe 661, a waste oil output valve 662 is mounted on the waste oil output pipe 661, in the process of disassembling the filter element components 63, residual oil on the filter element components 63 can drop on the filter box body 61, if the surface of the filter box body 61 is not greasy, the ground of an operation place can be polluted, personnel can slide down, the accident is caused, the oil receiving ring groove 66 can block and collect the dropped oil, the oil is discharged according to the need through the waste oil output pipe 661, the filter tank oil inlet pipe 67 is connected to the side wall of the filter tank 61, the filter tank oil inlet pipe 67 is connected with the oil tank oil outlet pipe 52 pipeline, the filter tank oil return pipe 68 is arranged at the bottom of the filter tank 61, the filter tank oil inlet valve 671 is arranged on the filter tank oil inlet pipe 67, the filter tank oil return valve 681 is arranged on the filter tank oil return pipe 68, the primary filter tank oil inlet pipe 22 is connected with the primary filter tank oil return pipe 26, the filter tank oil return pipe 68 is connected with the primary filter tank oil return pipe 26 pipeline, the primary filter tank oil return pipe 26 is arranged behind the primary filter tank oil inlet electromagnetic valve 23, the bottom of the filter tank 61 is provided with an oil return pipeline communicated with the primary filter tank 2, and redundant oil returns to circulate and heat while the oil is filtered, the design of the primary filter tank oil return pipe 26 is arranged behind the primary filter tank oil inlet electromagnetic valve 23, so that the oil return pipeline is not controlled by the primary filter tank oil inlet electromagnetic valve 23, and sustainable oil return is ensured.
The filter element assembly 63 comprises a filter material fixing flange plate 631 and a filter element filter material 632, the filter element filter material 632 is fixedly arranged on the filter material fixing flange plate 631, the filter element filter material 632 is made of ultrafiltration membrane material, the filter material fixing flange plate 631 is provided with a filter element oil outlet 6311 in a penetrating way, the upper end face and the lower end face of the filter material fixing flange plate 631 are respectively provided with a sealing ring 633, the filter element assembly 63 is clamped and sealed between the filter element gland 64 and the filter element mounting platform 62 by the filter material fixing flange plate 631, the sealing rings 633 on the two end faces play a role of sealing a contact surface between the filter element gland 64 and the filter element mounting platform 62, the top of the filter element gland 64 is connected with a three-way pipe 641, the lower end of the three-way pipe 641 is connected with the filter element gland 64, the left end and the right end of the three-way pipe 641 are respectively provided with a filter tank oil outlet 642 and a filter element recoil air inlet 643, the filter tank oil outlet 642 is provided with a filter element oil outlet electromagnetic valve 644, the filter element backflushing air inlet pipe orifice 643 is provided with a backflushing air inlet electric valve 645, the filter box oil outlet pipe orifice 642 is used for discharging oil to the vacuum oil inlet box 72, the filter element backflushing air inlet pipe orifice 643 is connected with an external air source and is used for backflushing and cleaning the filter element assembly 63, the filter element locking cover assembly 65 comprises an upper locking seat 651, a lower locking seat 652 and a locking screw rod 654, a plurality of upper locking seats 651 are fixedly connected to the side edge of the filter element gland 64, a plurality of lower locking seats 652 are fixedly connected to the side wall of the filter element mounting platform 62, a plurality of upper locking seats 651 and lower locking seats 652 are arranged in a one-to-one correspondence manner, the upper locking seat 651 is provided with a screw rod movement groove 6511, the lower locking seats 652 are rotatably inserted with a rotary pin 653, the locking screw rod 654 is vertically welded on the rotary pin 653, the locking screw rod 655 is provided with a nut 655 in a threaded manner, when the locking is required, the locking screw rod 654 is rotated onto the screw rod movement groove 6511, and the nut 655 is screwed, when the filter cartridge gland 64 needs to be opened, the eye nut 655 is unscrewed, the locking screw 654 is reversely rotated to be separated from the locking seat 651, and the filter cartridge assembly 63 can be rapidly disassembled for replacement or cleaning.
The vacuum tank assembly 7 comprises a vacuum tank 71, a vacuum oil tank 72 and a vacuum pump 73, wherein the vacuum oil tank 72 is connected with the vacuum tank 71 through a pipeline, a filter tank oil outlet pipe 642 of a three-way pipe 641 at the top of a filter core gland 64 is connected to the vacuum oil tank 72 through a pipeline, a vacuum pressure gauge 721 is arranged on the vacuum oil tank 72, the vacuum oil tank 72 is connected with the vacuum tank 71, the vacuum volume can be increased, the oil in the filter tank 61 enters the vacuum tank 71 after passing through the vacuum oil tank 72, a vacuum tank air suction opening 711 is arranged at the top of the vacuum tank 71, the vacuum tank air suction opening 711 is connected with the pipeline of the vacuum pump 73, the vacuum pump 73 is connected with a cooling water tank 74 for circularly cooling the vacuum pump 73 to prevent the vacuum pump 73 from overheating and damaging, an air filter 75 is arranged on the pipeline connecting the vacuum tank air suction opening 711 and the vacuum pump 73, the air filter 75 filters the water of the air, the second floating ball liquid level controller 76 is arranged on the vacuum tank 71 to control the oil level in the vacuum tank 71, the vacuum tank air inlet pipe 77 is also connected to the top of the vacuum tank 71, the vacuum tank air inlet solenoid valve 771 is arranged on the vacuum tank air inlet pipe 77, the vacuum tank air inlet solenoid valve 771, the second floating ball liquid level controller 76 and the second oil transfer pump 8 are controlled in a circuit interlocking manner, when the oil liquid level in the vacuum tank 71 rises to the liquid level control position of the second floating ball liquid level controller 76, the second oil transfer pump 8 is started, at the moment, the vacuum tank air inlet solenoid valve 771 is opened, air enters the vacuum tank 71, the vacuum state of the vacuum tank 71 is relieved, the second oil transfer pump 8 outputs filtered oil, the oil level in the vacuum tank 71 continuously drops in the process, and when the oil level drops to the liquid level control position which is separated from the second floating ball liquid level controller 76, the second oil transfer pump 8 stops working, the vacuum tank air inlet electromagnetic valve 771 is closed, the vacuum pump 73 is started again to vacuumize and suck oil again, the oil sucking and outputting are completed through the circulation operation, the bottom of the vacuum tank 71 is provided with a vacuum tank oil outlet 712, the vacuum tank oil outlet 712 is connected with an input end pipeline of the second oil conveying pump 8, a second window 713 is arranged on the side wall of the vacuum tank 71 and is used for observing the oil state in the vacuum tank 71, and a second liquid level pipe 714 is arranged on the side wall of the vacuum tank 71 and is used for observing the liquid level height of the vacuum tank 71.
The first oil transfer pump 3, the second oil transfer pump 8, the primary filter tank oil inlet electromagnetic valve 23, the first floating ball liquid level controller 57, the second floating ball liquid level controller 76, the vacuum tank air inlet electromagnetic valve 771, the recoil air inlet electromagnetic valve 645 and the filter element oil outlet electromagnetic valve 644 are all connected to the control box 11 through lines, the control box 11 is provided with an oil temperature control area 111, the temperature of oil flowing in control equipment can be set, the optimal oil temperature is 40 ℃, the oil fluidity is the best at the temperature, the filtering operation is most facilitated, and the control box 11 is provided with a plurality of control buttons 112 for controlling the starting and stopping of each electrical equipment.
The application method of the negative pressure type ultrafiltration membrane filtering equipment comprises the following steps:
1) The starting equipment is characterized in that a primary filter tank oil inlet electromagnetic valve 23 is opened, a first oil transfer pump 3 is started, oil is firstly fed into the primary filter tank 2 after being sucked from an oil inlet main pipe 9, and large-particle impurities are filtered out through primary filtration of a filter bag 21;
2) The oil temperature of the oil temperature control area 111 of the control box 11 is set to be 40 ℃, the oil after primary filtration is conveyed into the heating tank 4 through the first oil conveying pump 3, the oil is heated through the heating rod 41 in the heating tank 4, the fluidity of the oil at 40 ℃ is the best, and the filtering effect is the best;
3) The heated oil flows into the oil storage tank 5, and as the oil storage tank 5 is communicated with the filter tank body 61 of the ultrafiltration membrane filter tank device 6, the oil level of the oil storage tank 5 and the oil level of the filter tank body 61 are synchronously raised, an oil return pipeline is arranged at the bottom of the filter tank body 61, the oil flows back into the primary filter tank 2 through the oil return pipeline at the same time, and the oil flows through the steps 1) and 2) again, so that the circulation is carried out until the temperature of the flowing oil rises to 40 ℃, and the oil is continuously circulated and heated in the primary filter tank 2, the heating tank 4, the oil storage tank 5 and the filter tank body 61 while the oil inlet main pipe 9 is continuously fed with oil, so that the oil temperature is ensured to rise to 40 ℃, and the oil level is continuously raised;
4) The oil temperature reaches 40 ℃, the vacuum pump 73 is started, the vacuum tank 71 is vacuumized, the oil in the filter box 61 is influenced by pressure difference, the oil is filtered by the filter element assembly 63 and then is output into the vacuum oil inlet box 72 from the filter element oil outlet electromagnetic valve 644 end of the three-way pipe 641 at the top of the filter element gland 64 and finally flows into the vacuum tank 71, impurities filtered by the filter element assembly 63 remain in the filter box 61 and the surface of the filter element assembly 63, and negative pressure reverse filtration liquid is realized through the actions;
5) The oil level in the vacuum tank 71 rises, after the oil level rises to the oil level control position of the second floating ball liquid level controller 76, the second oil transfer pump 8 is started, and filtered oil is output from the oil outlet main pipe 10;
6) The filter element backflushing air inlet pipe orifice 643 of the three-way pipe 641 at the top of the filter element gland 64 is connected with an external air source, adsorbed impurities on the surface of the filter element assembly 63 are increased after a period of filtering operation, the filtering effect is deteriorated, the filter element oil outlet electromagnetic valve 644 of the three-way pipe 641 at the top of the filter element gland 64 is closed, the backflushing air inlet electromagnetic valve 645 is opened, backflushing air enters from the filter element backflushing air inlet pipe orifice 643, the filter element assembly 63 is impacted reversely from inside to outside, solid particle impurities adsorbed on the surface of the filter element filter material 632 are blown off, the filtering effect of the filter element filter material 632 is ensured, after the backflushing operation, the backflushing air inlet electromagnetic valve 645 is closed, the filter element oil outlet electromagnetic valve 644 is opened, and filtering liquid outlet operation is performed again;
7) And (3) repeating the steps 1) to 6), and continuously circularly filtering the oil.
The invention adopts the prior forward filtering technology which is different in design, the prior forward filtering technology is adopted, the oil is pumped into a vacuum state, the pressure difference between the vacuum tank 71 and the filtering box body 61 is utilized to convey the oil, when the oil flows from the filtering box body 61 to the vacuum tank 71, the oil is reversely filtered by the filter element assembly 63, filtered impurities are adsorbed on the outer surface of the filter element filtering material 632, the filtered oil is output from the inside of the filter element filtering material 632, the prior forward filtering technology is adopted, the oil is output from the inside of the filter element filtering material 632 outwards, the filtered impurities are accumulated in the filter element filtering material 632, the filtering precision of the filter element filtering material 632 cannot be too high when the prior forward filtering technology is used, otherwise, the inside of the filter element assembly 63 is blocked due to flying accumulated impurities, and the filter element assembly 63 needs to be replaced immediately, so the consumable material of the filter element assembly 63 is very serious, because the impurity of filtering out adsorbs at filter element filter material 632 surface, when filter element assembly 63 is blockked up by the impurity appears, as long as start reverse gas and wash away, just can wash down the impurity of adsorbing at filter element filter material 632 surface, guaranteed the filter effect of filter element filter material 632, the impurity that washes down simultaneously flows at filtering box 61 and also does not influence the secondary filtering of fluid, filter element filter material 632 just does not need frequent dismantlement to change or wash like this, can furthest reduce filter material consumption, save filtering cost, can use the higher milipore filter material of precision as filter material under this kind of mode simultaneously, just so overcome the limitation that prior art can't improve any more to filtering precision, promoted the cleanliness after the oil filtration, ensured lubricating property and the life of fluid service apparatus.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (7)
1. The negative pressure type ultrafiltration membrane filtering equipment comprises an equipment mounting frame (1), a primary filtration tank (2), a first oil delivery pump (3), a heating tank (4), an oil storage tank (5), an ultrafiltration membrane filtration tank device (6), a vacuum tank component (7), a second oil delivery pump (8), an oil inlet main pipe (9) and an oil outlet main pipe (10), and is characterized in that the primary filtration tank (2), the first oil delivery pump (3), the heating tank (4), the oil storage tank (5), the ultrafiltration membrane filtration tank device (6), the vacuum tank component (7) and the second oil delivery pump (8) are connected in sequence in a pipeline manner and are fixedly mounted on the equipment mounting frame (1), the primary filtration tank (2) is connected with the oil inlet main pipe (9) in a pipeline manner, the output end of the second oil delivery pump (8) is connected with the oil outlet main pipe (10) in a pipeline manner, a control box (11) is fixedly mounted on the equipment mounting frame (1), and the ultrafiltration membrane filtration tank device (6) comprises a filtration tank body (61), Filter element assembly (63), filter core gland (64), filter core locking closure subassembly (65), be equipped with filter core mounting platform (62) that a plurality of equipartitions set up on filter box (61) up end, filter element assembly (63) run through cartridge on filter core mounting platform (62), filter core gland (64) sticis on filter element assembly (63) and pass through filter core locking closure subassembly (65) and filter core mounting platform (62) locking connection, filter element assembly (63) include filter media mounting flange board (631), filter media (632) fixed mounting is on filter media mounting flange board (631), run through on filter media mounting flange board (631) and be equipped with filter core oil outlet (6311), sealing washer (633) are all installed respectively on filter media mounting flange board (631) upper and lower both ends face, filter media (64) top is connected with three-way pipe (641), two ends are set up to filter media (641) about three-way pipe lower extreme and filter core gland (64) are set up respectively to filter box oil outlet (642) a filter element backflushing air inlet pipe orifice (643), a filter element oil outlet electromagnetic valve (644) is arranged on the filter tank oil outlet pipe orifice (642), a backflushing air inlet electric valve (645) is arranged on the filter element backflushing air inlet pipe orifice (643), and the filter element lock cover assembly (65) comprises an upper lock seat (651), a lower lock seat (652), A plurality of locking screw rods (654), a plurality of upper locking seats (651) are fixedly connected to the side edges of the filter element gland (64), a plurality of lower locking seats (652) are fixedly connected to the side wall of the filter element mounting platform (62), a plurality of upper locking seats (651) and lower locking seats (652) are arranged in one-to-one correspondence, screw rod movement grooves (6511) are arranged on the upper locking seats (651), the lower lock seat (652) is rotatably inserted with a rotary pin shaft (653), the locking screw (654) is vertically welded on the rotary pin shaft (653), the locking screw (654) is provided with a flying nut (655) in a threaded manner, and the vacuum tank assembly (7) comprises a vacuum tank (71), The filter element gland comprises a vacuum oil inlet box (72) and a vacuum pump (73), wherein the vacuum oil inlet box (72) is connected with a vacuum tank (71) through a pipeline, and a filter box oil outlet pipe orifice (642) of a three-way pipe (641) at the top of the filter element gland (64) is connected to the vacuum oil inlet box (72) through a pipeline.
2. The negative pressure ultrafiltration membrane filtration equipment as claimed in claim 1, wherein a plurality of travelling wheels (101) are arranged at the bottom of the equipment mounting frame (1).
3. A negative pressure ultrafiltration membrane filtration device as claimed in claim 1, wherein a filter bag (21) is installed in the primary filtration tank (2), a primary filtration tank oil inlet pipe (22) is arranged at the upper end of the primary filtration tank (2), the primary filtration tank oil inlet pipe (22) is connected with an oil inlet main pipe (9) through a pipeline, a primary filtration tank oil inlet electromagnetic valve (23) is installed on a connecting pipeline of the primary filtration tank oil inlet pipe (22) and the oil inlet main pipe (9), a primary filtration tank oil outlet (24) is arranged at the bottom of the primary filtration tank (2), a primary filtration tank oil outlet valve (25) is installed at the top of the primary filtration tank (2), the primary filtration tank oil outlet (24) is connected with an input pipeline of a first oil delivery pump (3), a heating rod (41) is installed in the heating tank (4), a heating tank oil inlet pipe (42) is arranged at the bottom of the heating tank (4), a heating tank oil outlet pipe (43) is connected with an output pipeline of the first oil pump (3), an oil storage tank oil outlet (43) is arranged at the top of the heating tank (4), an oil outlet pipe (51) is connected with an oil storage tank oil storage pipe (51) through an oil storage tank oil inlet pipe (51) through an oil storage tank inlet pipe (51), the oil storage tank is characterized in that an air bleeding elbow (53) is arranged at the top of the oil storage tank (5), a first window (55) is arranged on the side wall of the oil storage tank (5) and used for observing the oil state in the oil storage tank (5), a first liquid level pipe (56) is arranged on the side wall of the oil storage tank (5) and used for observing the liquid level height of the oil storage tank (5), and a first floating ball liquid level controller (57) is arranged on the oil storage tank (5) and used for controlling the oil level height of the oil storage tank (5).
4. A negative pressure ultrafiltration membrane filtration apparatus according to claim 3, wherein a tank top air outlet pipe (611) is arranged at the top of the filtration tank body (61), a tank bottom air outlet pipe (612) is arranged at the lower end of the side wall of the filtration tank body (61), two air inlet bent pipes (54) are connected at the top of the oil storage tank (5), the two air inlet bent pipes (54) are respectively connected with the tank top air outlet pipe (611) and the tank bottom air outlet pipe (612) through pipelines, the highest height of the filtration tank body (61) is lower than the lowest oil level control height of the first floating ball liquid level controller (57), an oil receiving ring groove (66) is connected at the upper end of the filtration tank body (61) along the outer side wall, a waste oil output pipe (661) is connected on the oil receiving ring groove (66), a waste oil output valve (662) is arranged on the waste oil output pipe (661), a filtration tank oil inlet pipe (67) is connected on the side wall of the filtration tank body (61), the filtration tank oil inlet pipe (67) is connected with an oil storage tank oil outlet pipe (52) through a pipeline, the filtration tank bottom (61) is provided with an oil return pipe (68) through an oil return pipe (26) connected with an oil return pipe (26) through an initial filtration tank, the oil return pipe orifice (26) of the primary filter tank is arranged at the back of the oil inlet electromagnetic valve (23) of the primary filter tank.
5. The negative pressure ultrafiltration membrane filtering equipment as set forth in claim 1, wherein a vacuum pressure gauge (721) is installed on the vacuum oil inlet box (72), a vacuum tank air suction opening (711) is formed in the top of the vacuum tank (71), the vacuum tank air suction opening (711) is connected with a vacuum pump (73) pipeline, the vacuum pump (73) is connected with a cooling water tank (74) for circularly cooling the vacuum pump (73), an air filter (75) is installed on a connecting pipeline of the vacuum tank air suction opening (711) and the vacuum pump (73), a second floating ball liquid level controller (76) is installed on the vacuum tank (71) for controlling the height of an oil level in the vacuum tank (71), a vacuum tank air inlet pipe (77) is further connected to the top of the vacuum tank (71), a vacuum tank air inlet electromagnetic valve (771) is installed on the vacuum tank air inlet pipe (77), a vacuum tank oil outlet (712) is arranged at the bottom of the vacuum tank (71), the vacuum tank oil outlet (712) is connected with an input pipeline of a second pump (8), and a second oil level observation window (71) is installed on the side wall of the vacuum tank (71) for observing the liquid level of the vacuum tank (71).
6. The negative pressure ultrafiltration membrane filtering equipment as set forth in claim 5, wherein the first oil transfer pump (3), the second oil transfer pump (8), the primary filter tank oil inlet electromagnetic valve (23), the first floating ball liquid level controller (57), the second floating ball liquid level controller (76), the vacuum tank air inlet electromagnetic valve (771), the recoil air inlet electromagnetic valve (645) and the filter element oil outlet electromagnetic valve (644) are all connected to the control box (11) in a line manner, the control box (11) is provided with an oil temperature control area (111), and the control box (11) is provided with a plurality of control buttons (112).
7. A method for using a negative pressure type ultrafiltration membrane filtration device, which is applied to the negative pressure type ultrafiltration membrane filtration device as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps:
1) The starting equipment is characterized in that an oil inlet electromagnetic valve (23) of a primary filter tank is opened, a first oil delivery pump (3) is started, oil is sucked from an oil inlet main pipe (9) and then enters the primary filter tank (2), and large-particle impurities are filtered through primary filtration of a filter bag (21);
2) The oil temperature of an oil temperature control area (111) of the control box (11) is set to be 40 ℃, the oil after primary filtration is conveyed into a heating tank (4) through a first oil conveying pump (3), and the oil is heated through a heating rod (41) in the heating tank (4);
3) The heated oil flows into an oil storage tank (5), and as the oil storage tank (5) is communicated with a filter box body (61) of an ultrafiltration membrane filter box device (6), the oil level of the oil storage tank (5) and the oil level of the filter box body (61) synchronously rise, an oil return pipeline is arranged at the bottom of the filter box body (61), the oil flows back into a primary filter tank (2) through the oil return pipeline at the same time, and the oil flows through the steps 1) and 2) again, so that the circulation is carried out until the flowing oil is heated to 40 ℃;
4) Starting a vacuum pump (73), vacuumizing the vacuum tank (71), filtering oil in the filter box body (61) through the filter element assembly (63) under the influence of pressure difference, outputting the filtered oil from the filter element oil outlet electromagnetic valve (644) end of a three-way pipe (641) at the top of the filter element gland (64) into a vacuum oil inlet box (72) and finally flowing into the vacuum tank (71), wherein impurities filtered by the filter element assembly (63) remain in the filter box body (61) and on the surface of the filter element assembly (63);
5) The oil level in the vacuum tank (71) rises, after the oil level rises to the oil level control position of the second floating ball liquid level controller (76), the second oil transfer pump (8) is started, and filtered oil is output from the oil outlet main pipe (10);
6) The filter element backflushing air inlet pipe orifice (643) of the top three-way pipe (641) of the filter element gland (64) is connected with an external air source, after a period of filtering operation, the filter element oil outlet electromagnetic valve (644) of the top three-way pipe (641) of the filter element gland (64) is closed, the backflushing air inlet electromagnetic valve (645) is opened, backflushing air enters from the filter element backflushing air inlet pipe orifice (643), reversely impacts the filter element assembly (63), solid particle impurities adsorbed on the surface of the filter element filter material (632) are blown off, the filtering effect of the filter element filter material (632) is ensured, after the backflushing operation, the backflushing air inlet electromagnetic valve (645) is closed, the filter element oil outlet electromagnetic valve (644) is opened, and filtering liquid outlet operation is performed again;
7) And (3) repeating the steps 1) to 6), and continuously circularly filtering the oil.
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| CN119464024B (en) * | 2025-01-13 | 2025-04-01 | 山东新航线生物科技有限公司 | A phage reagent production filtering device convenient for cleaning impurities |
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| CN203663559U (en) * | 2013-12-18 | 2014-06-25 | 杨继新 | Energy-saving oil purifier |
| CN105271471A (en) * | 2015-10-16 | 2016-01-27 | 王凤蕊 | Ultrafiltration device triggered by reverse filtration negative pressure |
| CN211963348U (en) * | 2020-03-16 | 2020-11-20 | 绍兴汇泰机电设备制造有限公司 | Negative pressure formula milipore filter filtration equipment |
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| CN104922970A (en) * | 2014-03-23 | 2015-09-23 | 胡森 | Vacuum oil filter for fire resistant oil and vacuum oil filter method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203663559U (en) * | 2013-12-18 | 2014-06-25 | 杨继新 | Energy-saving oil purifier |
| CN105271471A (en) * | 2015-10-16 | 2016-01-27 | 王凤蕊 | Ultrafiltration device triggered by reverse filtration negative pressure |
| CN211963348U (en) * | 2020-03-16 | 2020-11-20 | 绍兴汇泰机电设备制造有限公司 | Negative pressure formula milipore filter filtration equipment |
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Denomination of invention: A negative pressure ultrafiltration membrane filtration equipment and its usage method Granted publication date: 20241231 Pledgee: Zhejiang Shaoxing Ruifeng Rural Commercial Bank Co.,Ltd. Xincheng Sub branch Pledgor: SHAOXING HUITAI ELECTROMECHANICAL EQUIPMENT MANUFACTURING Co.,Ltd. Registration number: Y2026980004057 |
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