CN214075176U

CN214075176U - Oil-water separation device

Info

Publication number: CN214075176U
Application number: CN202022786016.3U
Authority: CN
Inventors: 秦四海; 杨敬民; 吴煜男
Original assignee: Qingdao Shuanglianying Energy Saving And Environmental Protection Technology Co ltd
Current assignee: Qingdao Shuanglianying Energy Saving And Environmental Protection Technology Co ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-08-31
Anticipated expiration: 2030-11-27

Abstract

The utility model discloses an oil-water separation device, include: the oil tank comprises a tank body, wherein the top of the tank body is provided with a liquid inlet and an oil outlet, and the bottom of the tank body is provided with a water outlet; the liquid inlet is also provided with a water distributor which is transversely arranged above the separation bed; a separation bed disposed in the tank; an oil-absorbing filler for adsorbing oil contained in water; the hydraulic drive type back washing pressure plate module comprises an extrusion component and a hydraulic drive component. The service life of the oil absorption filler is prolonged, and the oil recovery rate is improved.

Description

Oil-water separation device

Technical Field

The utility model relates to the technical field of machinery, especially, relate to an oil-water separator.

Background

The oil-water mixture has wide sources, and a large amount of oil-water mixture is produced in the production process in the fields of oil fields, steel mills, oil refineries, chemical plants and the like. In order to sufficiently recover and utilize the oil in the oil-water mixture, an oil-water separator is generally used for separation. For example: chinese patent No. 201710372701.1 discloses an adsorption-extrusion oil-water separation device, which has a highly elastic oleophilic porous material as an oil absorption filler to adsorb oil in water. And in the using process, after the oil absorption filler is fully absorbed with oil, the oil absorption filler is extruded in an extruding mode so as to extrude and recover the oil contained in the oil absorption filler. However, after the extrusion, the oil absorption filler can not be effectively discharged because of the storage of more oil all the time, and along with the increase of the service time, the oil absorption filler is not thoroughly cleaned, so that the service life of the oil absorption filler is short. Therefore, how to design a technique that prolongs oil absorption filler life and improve the recycle ratio of oil is the utility model discloses the technical problem that will solve.

Disclosure of Invention

The utility model provides an oil-water separator realizes effectively extruding the requirement of oil in the oil absorption filler in order to satisfy big volume fluid separation under the hydraulic pressure effect to prolong oil absorption filler life and improve the recycle ratio of oil.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an oil-water separation device, include:

the oil tank comprises a tank body, wherein the top of the tank body is provided with a liquid inlet and an oil outlet, and the bottom of the tank body is provided with a water outlet;

a separation bed disposed in the tank;

an oil-absorbing filler for adsorbing oil contained in water;

the hydraulic drive type back washing pressure plate module comprises an extrusion component and a hydraulic drive component;

the extrusion assembly comprises an extrusion plate, a one-way valve and a back washing mechanism, wherein the extrusion plate is provided with a plurality of first mounting holes and second mounting holes; the one-way valve is arranged in each first mounting hole and used for enabling fluid to flow downwards from the upper part of the extrusion plate, the back washing mechanism is arranged in each second mounting hole and located at the upper part of each second mounting hole and used for spraying water to the upper part of the extrusion plate;

the hydraulic driving assembly comprises a cylinder and a piston, a pressure relief hole is formed in the upper portion of the cylinder, the piston is arranged in the cylinder in a sliding mode, a sealing ring is further arranged on the periphery of the piston, and the sealing ring is extruded between the cylinder and the piston; the cylinder body is arranged at the bottom of the tank body, a hydraulic cavity is formed among the cylinder body, the tank body and the piston, a water inlet pipe communicated with the hydraulic cavity is arranged on the tank body, and the part of the piston extending out of the upper port of the cylinder body is connected with the extrusion plate;

the squeezing plate is arranged in the tank body in a vertically sliding mode and located below the separation bed, and the oil absorption filler is arranged between the separation bed and the squeezing plate; the hydraulic driving assembly is arranged at the bottom of the tank body.

Furthermore, the periphery of the piston is also provided with a plurality of support rings, the support rings are positioned above the sealing rings, and the piston is arranged in the cylinder body in a sliding mode through the support rings.

Furthermore, the back washing mechanism comprises a sleeve, a rotating part and an upper cover; a first cantilever is arranged in the sleeve, and a first shaft hole is formed in the first cantilever; the upper end part of the rotating part is provided with a first rotating shaft, the rotating part is provided with a through hole penetrating through the first rotating shaft, a second cantilever is arranged in the through hole, a second rotating shaft is arranged on the second cantilever, the first rotating shaft and the second rotating shaft are coaxially arranged, a plurality of spiral water grooves are arranged in the rotating part around the through hole, and a plurality of hemispheres are arranged on the upper surface of the rotating part around the through hole; the upper cover is provided with a second shaft hole, a hollow structure is arranged on the upper cover around the second shaft hole, a protruding structure matched with the hemispheroid is arranged on the lower surface of the upper cover, the upper cover is arranged on the sleeve, the rotating part is positioned in the sleeve and positioned below the upper cover, the first rotating shaft is inserted into the first shaft hole, and the second rotating shaft is inserted into the second shaft hole.

Furthermore, the sleeve is used for installing the end part of the rotating part is of a horn mouth structure, and the cross section of the rotating part is of an inverted trapezoidal structure.

Further, the spiral water tank is obliquely arranged from bottom to top.

Further, the second mounting hole is a stepped hole, and the size of an upper port of the second mounting hole is larger than that of a lower port; the sleeve is inserted into the second mounting hole, and the upper cover is attached to the step surface of the second mounting hole.

Further, the periphery of the extrusion plate is also provided with a sealing ring.

Further, still include aeration components, aeration components includes intake pipe and aeration pipe, the intake pipe with the aeration union coupling, the aeration pipe sets up in the jar body and be located extrusion components's below.

Further, the aeration pipe is of an annular structure and surrounds the periphery of the hydraulic driving assembly.

Furthermore, the bottom of the tank body is also provided with an annular collecting pipe, a plurality of water inlets are formed in the pipe wall of the annular collecting pipe, and the annular collecting pipe is connected with the water outlet and surrounds the periphery of the hydraulic driving assembly.

The technical scheme of the utility model prior art relatively has following technological effect: the oil absorption is packed and will constantly adhere the oil molecule in filtering process, after using a period, then can drive the extrusion subassembly through hydraulic drive subassembly and upwards move, the extrusion subassembly upwards moves and compresses the oil absorption and pack, the oil absorption is packed in the compression process, make its inside adsorbed oil molecule extrude and gather together the back come-up output, hydraulic drive subassembly can provide sufficient pressure drive extrusion subassembly and extrude large tracts of land oil absorption and pack, in order to satisfy the operating requirement of big volume jar of body, simultaneously, wash the oil absorption through back flush mechanism and pack, with the high efficiency oil of adhesion in the oil absorption is packed, so that the oil absorption packs the at utmost recovery activity, and then extension oil absorption packs life and improves the recycle ratio of oil.

Drawings

FIG. 1 is a schematic structural view of an oil-water separator according to the present invention;

FIG. 2 is a second schematic structural view of the oil-water separator of the present invention;

FIG. 3 is a schematic structural view of a hydraulically driven back-washing pressure plate module in the oil-water separation device of the present invention;

FIG. 4 is an enlarged view of a portion of area A of FIG. 3;

FIG. 5 is a schematic structural view of a back-washing mechanism in the oil-water separation device of the present invention;

FIG. 6 is a sectional view of a back-washing mechanism of the oil-water separator of the present invention;

fig. 7 is a schematic structural view of a rotating member in the oil-water separating device of the present invention.

Detailed Description

As shown in fig. 1-7, the utility model provides an oil-water separation device, include: the device comprises a tank body 1, a separation bed 2, a back-flushing pressure plate module and an oil-absorbing filler 4.

The top of the tank body 1 is provided with a liquid inlet 11 and an oil outlet 12, the bottom of the tank body 1 is provided with a water outlet 13, and the separation bed 2 is arranged in the tank body 1. The backwashing pressure plate module comprises an extrusion component 3 and a hydraulic driving component 5, wherein the extrusion component 3 is arranged in the tank body 1 in a vertically sliding manner and is positioned below the separation bed 2, the oil absorption filler 4 is used for absorbing oil contained in water, and the oil absorption filler 4 is arranged between the separation bed 2 and the extrusion component 3.

Wherein the pressing assembly 3 comprises: the device comprises an extrusion plate 31, a one-way valve 32 and a back flushing mechanism 33, wherein the extrusion plate 31 in the extrusion assembly 3 is arranged in the tank body 1 in a vertically sliding manner and is positioned below the separation bed 2, and a plurality of first mounting holes 311 and second mounting holes 312 are formed in the extrusion plate 31; a one-way valve 32 is arranged in each first mounting hole 311, the one-way valve 32 is used for enabling fluid to flow downwards from the upper part of the extrusion plate 31, a back flushing mechanism 33 is arranged in each second mounting hole 312, and the back flushing mechanism 33 is positioned at the upper part of the second mounting holes 312 and used for spraying water above the extrusion plate 31 in a pulse mode;

in addition, the hydraulic driving assembly comprises a cylinder body 51 and a piston 52, wherein the upper part of the cylinder body 51 is provided with a pressure relief hole 511, the piston 52 is arranged in the cylinder body 51 in a sliding way, the periphery of the piston 52 is also provided with a sealing ring 53, and the sealing ring 53 is squeezed between the cylinder body 51 and the piston 52; the cylinder 51 is arranged at the bottom of the tank body, a hydraulic cavity is formed between the cylinder 51 and the tank body and between the piston 52, a water inlet pipe 15 communicated with the hydraulic cavity is arranged on the tank body, and the part of the piston 52 extending out of the upper port of the cylinder 51 is connected with the extrusion assembly. Specifically, in the actual use process, when the oil absorption filler needs to be extruded, high-pressure water enters the hydraulic cavity through the water inlet pipe 15. Under the action of hydraulic pressure, the piston 52 moves upwards to drive the extrusion assembly 3 to move upwards, and then the extrusion treatment on the oil absorption filler is realized.

Specifically, in the actual use process, the oil-water mixture enters the top of the tank body 1 through the liquid inlet 11, and the mixture entering the tank body 1 flows to the lower separation bed 2. The separating bed 2 is transversely arranged in the tank body 1, after the mixture passes through the separating bed 2, the water and the oil are separated from each other under the separating action of the separating bed 2, and meanwhile, the separated oil is combined with each other to form larger oil drops. The specific gravity of oil drops is lighter than that of water, so that the oil drops can rapidly rise and form an oil storage area at the top of the tank body 1, wherein the structure configuration of the conventional oil-water separator can be referred to in the oil-water separation mode of the separation bed 2, and is not limited or described herein.

The water separated by the separation bed 2 also contains a small amount of oil, the water continuously flows downwards to the oil absorption filler 4, the oil contained in the water is absorbed by the oil absorption filler 4 after the water is filtered by the oil absorption filler 4, and finally, the water flows to the bottom of the tank body 1 through the first mounting hole 311 on the squeezing assembly 3 and is discharged to the outside of the tank body 1 through the water outlet 13.

With the increase of the service time, the oil absorption capacity of the oil absorption filler 4 will gradually decrease as the amount of oil absorbed in the oil absorption filler 4 increases. At this time, the hydraulic drive unit 5 is required to drive the squeezing unit 3 to squeeze the oil-absorbing packing 4.

The hydraulic drive assembly 5 will drive the squeezing assembly 3 to move upwards by using hydraulic pressure, so that the oil absorbing filler 4 is clamped between the squeezing assembly 3 and the separation bed 2, and the oil in the oil absorbing filler 4 is squeezed out. Since there is still a large amount of oil-water mixture above the squeeze assembly 3, the squeezed oil will float to the top of the tank 1. And after the hydraulic drive assembly 5 resets, the extrusion assembly 3 will descend gradually along with it, and the oil absorption filler 4 will expand gradually after releasing pressure, and in the in-process of inflation, the oil absorption filler 4 will adsorb a large amount of water and a small amount of oil, and then makes the oil absorption filler 4 resume filtration ability again. Meanwhile, the back washing mechanism 33 sprays water in a pulse manner to the upward oil absorption filler 4 under the action of the bottom water pressure, so that the oil absorption filler 4 is efficiently cleaned to remove oil in the oil absorption filler 4, the oil absorption filler 4 recovers the efficient oil absorption capacity, and the service life of the oil absorption filler 4 is effectively prolonged.

Since the upper part of the cylinder body 51 is provided with the pressure relief hole 511, when the sealing ring 53 passes over the pressure relief hole 511 in the process of the up-and-down movement of the piston 52, the hydraulic cavity is communicated with the pressure relief hole 511; the pressure of the hydraulic cavity is relieved under the action of the pressure relief hole 511, and at this time, the piston 52 does not continue to move upwards to a certain extent, so that the compression amount of the oil absorption filler is controlled.

Wherein, in order to improve the effect of oil-water separation, the tank body 1 is provided with a plurality of layers of separation beds 2 from top to bottom, taking the three layers arranged in the attached figure 1 as an example. After the oil-water mixture is subjected to three-layer separation treatment, oil and water can be effectively separated, so that the treatment efficiency is improved. Meanwhile, a water distributor 111 may be further disposed on the liquid inlet 11, and the water distributor 111 is transversely disposed above the separation bed 2 to uniformly distribute the oil-water mixture to the separation bed 2 below through the water distributor 131, thereby improving the oil-water separation efficiency.

In order to facilitate the control of the discharge of the oil accumulated on the top of the tank 1, a mounting port 14 may be further provided on the top of the tank 1, and a level meter (not shown) may be provided in the mounting port, and specifically, the level meter may detect the amount of the oil accumulated on the top of the tank 1, and when the amount of the oil accumulated reaches a discharge standard, the oil discharge port 12 may be opened to discharge the oil to the outside. And the oil drain 12 is located above the liquid inlet 11 to facilitate the output of oil and reduce interference associated with the incoming mixture.

Preferably, in the actual use process, after the pressure in the hydraulic cavity is relieved through the relief hole 511, under the action of the gravity of the squeezing assembly 3 and the expansion force of the oil absorption filler 4, the squeezing assembly 3 drives the piston 52 to move downwards and the sealing ring 53 moves downwards to cut off the communication between the relief hole 511 and the hydraulic cavity, and at this time, the oil absorption filler 4 generates a certain amount of expansion. Meanwhile, the water inlet pipe 15 continues to supply water, so that the pressure in the hydraulic cavity gradually rises again and drives the piston 52 up and down again, and then the piston 52 is used for driving the extrusion assembly 3 to extrude the oil absorption filler 4. The above operations are repeated for several times, so that the hydraulic driving assembly 5 and the extrusion assembly 3 are matched to alternately extrude and release the oil absorption filler 4, and then the oil absorption filler 4 can be more fully and efficiently subjected to oil extrusion recovery operation.

In order to ensure smooth up-and-down sliding of the piston 52 in the cylinder 51, a plurality of support rings 54 may be further provided on the outer circumference of the piston 52, the support rings 54 may be located above the sealing rings 53, and the piston 52 may be slidably disposed in the cylinder 51 through the support rings 54. In particular, the support ring 54 can support the piston 52 to slide in the cylinder 51, so as to ensure that the piston 52 keeps stable in posture during sliding.

Further, in order to perform an effective backwashing process on the oil-absorbing packing 4 by the backwashing mechanism 33, the backwashing mechanism 33 includes a sleeve 331, a rotating member 332, and an upper cover 333;

a first cantilever is arranged in the sleeve 331, and a first shaft hole is formed in the first cantilever;

a first rotation shaft 3321 is provided at an upper end of the rotation member 332, a through hole 3320 through the first rotation shaft 3321 is provided in the rotation member 332, a second suspension arm (not shown) is provided in the through hole 3320, a second rotation shaft 3322 is provided in the second suspension arm, the first rotation shaft 3321 and the second rotation shaft 3322 are coaxially provided, a plurality of spiral water grooves 3323 are provided around the through hole 3320 in the rotation member 332, and a plurality of hemispheres 3324 are provided around the through hole in an upper surface of the rotation member 332;

the upper cover 333 is provided with a second shaft hole 3331, the upper cover 333 is provided with a hollow structure around the second shaft hole 3331, the lower surface of the upper cover 333 is provided with a convex structure 3332 for matching with the hemisphere 3324, the upper cover 333 is arranged on the sleeve 331, the rotating part 332 is positioned in the sleeve and below the upper cover 333, the first rotating shaft 3321 is inserted into the first shaft hole, and the second rotating shaft 3322 is inserted into the second shaft hole 3331.

Specifically, when water is injected into the bottom of the tank 1 to squeeze the oil-absorbing packing 4 by the squeezing unit 3, the water in the bottom of the tank 1 enters the sleeve 331 through the second mounting hole 312 and flows through the plurality of spiral water grooves 3323. In the flowing process of the water in the spiral water groove 3323, on one hand, the water is sprayed upwards through the spiral water groove 3323 and through the hollow structure of the upper cover 333, and on the other hand, the spiral water groove 3323 applies a balanced torsional force to the rotating part 332, so that the rotating part 332 rotates stably.

And the rotating member 332 may rotate a portion in the sleeve and may move up and down with respect to the upper cover 333. During the rotation of the rotating member 332, the rotating member 332 will move towards the upper lid 333 due to the action of the bottom water pressure, and during the rotation of the rotating member 332, the hemisphere 3324 will be intermittently pressed by the convex structure 3332, so that the rotating member 332 is close to the first cantilever. In the process that the rotating member 332 approaches the first suspension arm, the lower port of the through hole 3320 is gradually blocked by the first suspension arm, so that the through hole 3320 cannot spray water outwards. After the hemisphere 3324 leaves the convex structure 3332, the rotating member 332 is separated from the first cantilever by the water pressure, the interval between the first cantilever and the through hole 3320 is gradually increased, and part of the water flowing through the sleeve 331 further flows into the through hole 3320 and is sprayed out from the upper port of the through hole 3320, so that the water is sprayed out along the axis of the second rotating shaft 3322.

During actual use, as the squeezing assembly moves upwards, each backwashing mechanism 33 continuously sprays water upwards through the spiral water groove 3323 to clean the oil in the oil absorbing filler 4. Simultaneously, the perforating hole 3320 then realizes the outside water spray of pulsed, utilizes the water spray of pulsed to handle, can produce the impact to oil absorption filler 4 to clear up stubborn oil on oil absorption filler 4 more effectively, pack 4 with the realization more effective clean oil absorption.

For convenience of installation, the second installation hole 312 is a stepped hole, and the size of the upper port of the second installation hole 312 is larger than that of the lower port; the sleeve 331 is inserted into the second mounting hole 312, and the upper cover 333 is abutted against a stepped surface of the second mounting hole 312.

Further, for convenience of mounting the rotating member 332, an end of the sleeve for mounting the rotating member 332 is in a bell mouth structure, and a cross section of the rotating member 332 is in an inverted trapezoid structure. Specifically, rotating member 332 adopts the cone and with the bell mouth structure cooperation on sleeve pipe upper portion is installed, is convenient for on the one hand to rotating member 332 fix a position, and on the other hand can play good direction to rotating member 332 through the bell mouth structure to ensure that rotating member 332 can smooth-going rotation.

Still further, in order for the spiral water groove 3323 to be able to rotate the rotating member 332 rapidly by the water flow, the spiral water groove 3323 is arranged obliquely from bottom to top. Specifically, after the water flows into the spiral water groove 3323, the rotating member 332 rotates by the inertia of the water, and the spiral water groove 3323 extends obliquely outward along the water flow method, so that the rotational driving force of the water flow on the rotating member 332 can be increased, and the rotating member 332 is driven to rotate rapidly, thereby being more beneficial to the through hole 3320 to generate high-frequency water spray.

Preferably, in order to meet the sealing requirement, the outer periphery of the pressing plate 31 is further provided with a sealing ring 34. In particular, the sealing ring 34 can seal the connection area between the squeeze plate 31 and the tank body to reduce or prevent water leakage at the connection area.

And under the state that the hydraulic driving assembly is pressed downwards, along with the reduction of the upper and lower pressure difference of the extrusion assembly 3, the extrusion assembly 3 is enabled to move downwards so as to cut off the pressure relief hole 511 and the hydraulic cavity through the sealing ring 53 again, and then the hydraulic driving assembly is enabled to be in a pressurization state again so as to drive the piston 52 to move upwards again.

Still further, the oil-water separation device further comprises an aeration assembly 5, the aeration assembly 5 comprises an air inlet pipe 51 and an aeration pipe 52, the air inlet pipe 51 is connected with the aeration pipe 52, and the aeration pipe 52 is arranged in the tank body 1 and is positioned below the extrusion assembly 3. Specifically, in the process of extrusion back washing of the oil absorption filler 4 through the extrusion assembly 3, the air inlet pipe 51 is filled with air, the air is uniformly released to the bottom of the tank body 1 through the aeration pipe 52, and the air enters the oil absorption filler 4 through the water permeable gap 35 so as to impact and scatter the oil adhered to the oil absorption filler 4 by the air, thereby realizing more thorough and effective cleaning of the oil absorption filler 4.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An oil-water separator, comprising:

a separation bed disposed in the tank;

an oil-absorbing filler for adsorbing oil contained in water;

2. The oil-water separator according to claim 1, wherein the piston is further provided with a plurality of support rings on the outer periphery thereof, the support rings being located above the seal rings, and the piston is slidably disposed in the cylinder through the support rings.

3. The oil-water separator according to claim 1, wherein the back-washing mechanism includes a sleeve, a rotating member, and an upper cover; a first cantilever is arranged in the sleeve, and a first shaft hole is formed in the first cantilever; the upper end part of the rotating part is provided with a first rotating shaft, the rotating part is provided with a through hole penetrating through the first rotating shaft, a second cantilever is arranged in the through hole, a second rotating shaft is arranged on the second cantilever, the first rotating shaft and the second rotating shaft are coaxially arranged, a plurality of spiral water grooves are arranged in the rotating part around the through hole, and a plurality of hemispheres are arranged on the upper surface of the rotating part around the through hole; the upper cover is provided with a second shaft hole, a hollow structure is arranged on the upper cover around the second shaft hole, a protruding structure matched with the hemispheroid is arranged on the lower surface of the upper cover, the upper cover is arranged on the sleeve, the rotating part is positioned in the sleeve and positioned below the upper cover, the first rotating shaft is inserted into the first shaft hole, and the second rotating shaft is inserted into the second shaft hole.

4. The oil-water separator according to claim 3, wherein the end of the sleeve for mounting the rotating member is flared, and the cross section of the rotating member is inverted trapezoidal.

5. The oil-water separator according to claim 4, wherein the spiral water tank is arranged obliquely from bottom to top.

6. The oil-water separator according to claim 3, wherein the second mounting hole is a stepped hole, and an upper port size of the second mounting hole is larger than a lower port size; the sleeve is inserted into the second mounting hole, and the upper cover is attached to the step surface of the second mounting hole.

7. The oil-water separator according to any one of claims 1 to 6, wherein a seal ring is further provided on the outer periphery of the pressing plate.

8. The oil-water separation device of claim 1, further comprising an aeration assembly, wherein the aeration assembly comprises an air inlet pipe and an aeration pipe, the air inlet pipe is connected with the aeration pipe, and the aeration pipe is arranged in the tank body and is positioned below the extrusion assembly.

9. The oil and water separator as claimed in claim 8, wherein the aerator pipe is formed in an annular structure and surrounds the hydraulic drive unit.

10. The oil-water separator according to claim 1, wherein the bottom of the tank body is further provided with an annular manifold, the wall of the annular manifold is provided with a plurality of water inlets, and the annular manifold is connected with the water outlet and surrounds the periphery of the hydraulic drive assembly.