CN106477669A - An embedded oil-water separator - Google Patents

Abstract

The invention relates to an embedded oil-water separator, which comprises a barrel, wherein two ends of the barrel are respectively provided with a seal head, the two seal heads are respectively provided with a flushing pipe, an air inlet pipe, a backwashing pipe and a water inlet pipe, and the barrel is internally provided with an inner barrel, an annular baffle, an upper water distribution plate and a lower water distribution plate; the top of the cylinder body is provided with an oil collecting bag, and the top of the oil collecting bag is provided with two connectors; a mud collection bag is arranged at the lower part of the cylinder body, and a connector is arranged at the lower part of the mud collection bag; the inner cylinder body is positioned in the center of the cylinder body, and the left end of the inner cylinder body is fixedly connected with the annular baffle; the left end in the inner cylinder is provided with a first inner water distribution plate and a limiting ring; the right end of the inner cylinder body is provided with a second inner water distribution plate, and the right end of the second inner water distribution plate is connected with the movable plate through a support rod; the right side of the movable plate is provided with a one-way valve and a limiting block; an inner cylinder flange is also arranged at the right end of the inner cylinder body, and an inner cylinder end socket is arranged on the inner cylinder flange; the right end of the inner cylinder end socket is provided with a drain pipe; the invention has the advantages of small volume, high oil-water separation efficiency, wide application range, good treatment effect, low operation cost, low engineering quantity and wide application prospect.

Description

An embedded oil-water separator

technical field

The invention relates to an oil-water separator, in particular to an embedded oil-water separator.

Background technique

Oil is an indispensable resource in economic development and sustainability. The higher the degree of economic development, the greater the dependence and demand on oil. A large amount of oily sewage will be produced in the process of oil production and refining, and billions of tons of oily sewage will be produced every year in my country alone. There are many industries that produce oily sewage, such as: petroleum and related industries, storage and transportation of oil products, oil tanker or oil pipeline leakage accidents, vehicle and ship cleaning, machinery manufacturing, food processing and other processes will produce oily sewage. Oil pollution caused by oily sewage is extremely harmful to the environment and ecology.

There are many treatment technologies for oily sewage, commonly used are: gravity separation treatment technology, coarse-grained treatment technology, coalescence treatment technology, filtration treatment technology, air flotation treatment technology, adsorption treatment technology, membrane separation treatment technology, ultrasonic treatment technology , chemical (sedimentation, oxidation, etc.) treatment technology, biological treatment technology, etc. The treatment equipment or facilities used in the above treatment technologies include: settling tanks, coalescing degreasers, inclined plate degreasers, filter tanks, air flotation equipment, adsorption tanks (beds), membrane separation equipment, ultrasonic processors, Chemical sedimentation system, biological treatment system, etc. These treatment equipment or facilities have the following deficiencies:

The settling tank has low efficiency and large volume;

Coalescing degreaser and inclined plate degreaser are small and efficient equipment, but with the change of oily sewage, their treatment results have not met the requirements in many places;

The filter material used in the filter tank has a short service life, strict requirements on the water inlet index, and some backwashing is difficult;

The effect of air flotation equipment is better, but it will increase dissolved oxygen to the water body during operation, accelerate the corrosion rate of production equipment, and need to use a large amount of chemical agents, generate scum, secondary pollution, and high operating costs;

The adsorption material used in the adsorption tank (bed) is difficult to regenerate after adsorption and saturation, the consumption of the adsorption material is large, and there are problems of pollutant treatment and secondary pollution after the adsorption material is replaced;

Membrane separation equipment is essentially a kind of filtration equipment with good effluent index, but the filter membrane is expensive and easy to block, with large pressure difference, high energy consumption, and secondary treatment of concentrated return water;

The effect of the ultrasonic processor is better, but the equipment is expensive, and there is a problem of ultrasonic frequency matching, and the frequency mismatch will aggravate the emulsification;

The chemical sedimentation system has a mature process and simple operation, and the treatment results vary with the water quality and the type of chemical agent, but the oil and other pollutants in the water are deposited into the sludge, and there are problems of secondary treatment and waste of resources;

The biological treatment system depends on the selection and cultivation of suitable strains. If the strains are suitable, the treatment effect is good and the operating cost is low. However, the biological treatment system is very large, occupies a large area, takes a long time to process, and requires high operating conditions.

Contents of the invention

The purpose of the present invention is to provide a kind of embedded oil-water separator, it can overcome the above-mentioned shortcoming of existing device.

An embedded oil-water separator, comprising a cylinder body 1, the left end of which is provided with a left end cap 10, and the right end is provided with a right end cap 27;

At the left end of the inner cavity of the cylinder body 1, a grid plate 12 and an annular baffle plate 5 are sequentially arranged in the vertical direction from top to bottom;

The inner cylinder body 29 is inserted into the cylinder body 1 from the right end head 27, preferably centered and inserted into the cylinder body 1 from the right end head 27,

The left end of the inner cylinder 29 is connected and fixed with the annular baffle 5, and the diameter of the inner hole of the annular baffle 5 is adapted to the diameter of the inner cylinder 29,

The right end of the inner cylinder body 29 is exposed outside the right end head 27, and is provided with an inner cylinder flange 24,

The inner cylinder head 25 is connected with the inner cylinder flange 24;

The top of the inner cylinder 29 is provided with an upper water distribution plate 18,

The bottom of the inner cylinder 29 is provided with a lower water distribution plate 7,

The space enclosed by the upper water distribution plate 18, the lower water distribution plate 7 and the inner cylinder 29 is a primary separation bed 13;

The top of cylinder body 1 is convexly provided with oil collecting bag 15,

A mud collecting bag 3 is protruded from the bottom of the cylinder body 1 .

On the basis of the above-mentioned technical solution, in the inner cavity of the inner cylinder 29, an inner water distribution plate-9 is provided at one end adjacent to the annular baffle plate 5,

The inner water distribution plate-9 is limited in the inner cavity of the inner cylinder body 29 by the limit ring 8;

In the inner cavity of the inner cylinder body 29, an inner water distribution plate 2 19 is provided adjacent to the end of the inner cylinder flange 24, and the right side of the inner water distribution plate 2 19 is provided with a movable plate 21, and the movable plate 21 and the inner water distribution plate 2 19 is provided with support rod 20,

The movable plate 21 is provided with a one-way valve 23,

The movable plate 21 is limited in the inner cavity of the inner cylinder 29 by the limit block 22,

A secondary separation bed 14 is formed between the inner water distribution board one 9 and the inner water distribution board two 19 .

The primary separation bed 13 and the secondary separation bed 14 are collectively referred to as the separation zone.

On the basis of the above technical solution, a drain pipe 26 is provided on the inner cylinder head 25 .

On the basis of the above-mentioned technical solution, the oil collecting bag 15 is provided with an interface one 16 and an interface two 17, the interface one 16 is used for installing a liquid level controller, and the liquid level controller is used for controlling the liquid level of the oil layer.

On the basis of the above technical solution, the mud collecting bag 3 is provided with an interface 3 30 .

On the basis of the above technical solution, the space surrounded by the left end head 10, the grid plate 12 and the annular baffle 5 is the water collection chamber 32,

The space surrounded by the grid plate 12, the upper water distribution plate 18, the cylinder body 1 and the right end head 227 is the oil collection chamber 33, as shown in Figure 1, the upper water distribution plate 18 serves as the boundary between the oil collection chamber 33 and the separation area ,

The space surrounded by the annular baffle 5, the lower water distribution plate 7, the cylinder body 1 and the right end head 227 is the water inlet chamber 31, as shown in Figure 1, the lower water distribution plate 7 serves as the boundary between the water inlet chamber 31 and the separation area .

On the basis of the above technical solution, the left ends of the upper water distribution plate 18 and the lower water distribution plate 7 are respectively connected with the annular baffle 5,

The right ends of the upper water distribution plate 18 and the lower water distribution plate 7 are connected with the right end head 27 respectively.

On the basis of the above-mentioned technical scheme, the built-in separation filler in the primary separation bed 13,

Elastic adsorption packing is installed in the secondary separation bed 14 .

On the basis of the above technical solution, the lower end of the left end head 10 is provided with a flushing pipe 4 and an air intake pipe 6,

One end of the flushing pipe 4 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and extends to the mud collection bag 3,

The flushing pipe 4 is provided with a branch pipe extending into the mud collection bag 3;

One end of the air intake pipe 6 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and is connected with the aerator 2, and the aerator 2 extends to the right end head 27,

The aerator 2 is parallel to the lower water distribution plate 7 .

On the basis of the above technical solution, the air intake pipe 6 is located under the lower water distribution plate 7 , and the flushing pipe 4 is located under the air intake pipe 6 .

On the basis of the above-mentioned technical scheme, the upper end of the left end head 10 is provided with a backwash pipe 11,

One end of the backwash pipe 11 is exposed outside the left end head 10 , and the other end penetrates the grid plate 12 and extends to the oil collecting bag 15 .

On the basis of the above technical solution, the backwash pipe 11 is located above the upper water distribution plate 18 .

On the basis of the above-mentioned technical scheme, the lower end of the right end head 27 is provided with a water inlet pipe 28,

One end of the water inlet pipe 28 is exposed outside the right end head 27 , and the other end is located in the water inlet chamber 31 .

On the basis of the above technical solution, the water inlet pipe 28 is located below the lower water distribution plate 7 .

The invention has the advantages that the embedded oil-water separator has small volume, high oil-water separation efficiency, wide application range, excellent treatment effect, simple process flow, low operation cost and wide application prospect.

Description of drawings

The present invention has following accompanying drawing:

Fig. 1 is a structural schematic diagram of the present invention.

1- cylinder; 2- aerator; 3- mud bag; 4- flushing pipe; 5- ring baffle; 6- air intake pipe; 7- lower water distribution plate; 8- limit ring; Water plate 1; 10-left end head; 11-backwash pipe; 12-grid plate; 13-primary separation bed; 14-secondary separation bed; ;18-upper water distribution board; 19-inner water distribution board two; 20-support rod; 21-movable board; 22-limit block; 23-one-way valve; 26-drainage pipe; 27-right head; 28-inlet pipe; 29-inner cylinder; 30-interface three; 31-inlet chamber; 32-water collection chamber; 33-oil collection chamber

detailed description

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figure 1, the embedded oil-water separator of the present invention includes:

Cylinder 1, the left end is provided with the left end cap 10, and the right end is provided with the right end cap 27;

At the left end of the inner cavity of the cylinder body 1, a grid plate 12 and an annular baffle plate 5 are sequentially arranged in the vertical direction from top to bottom;

The inner cylinder body 29 is inserted into the cylinder body 1 from the right end head 27, preferably centered and inserted into the cylinder body 1 from the right end head 27,

The left end of the inner cylinder 29 is connected and fixed with the annular baffle 5, and the diameter of the inner hole of the annular baffle 5 is adapted to the diameter of the inner cylinder 29,

The right end of the inner cylinder body 29 is exposed outside the right end head 27, and is provided with an inner cylinder flange 24,

The inner cylinder head 25 is connected with the inner cylinder flange 24;

The top of the inner cylinder 29 is provided with an upper water distribution plate 18,

The bottom of the inner cylinder 29 is provided with a lower water distribution plate 7,

The space enclosed by the upper water distribution plate 18, the lower water distribution plate 7 and the inner cylinder 29 is a primary separation bed 13;

The top of cylinder body 1 is convexly provided with oil collecting bag 15,

A mud collecting bag 3 is protruded from the bottom of the cylinder body 1 .

On the basis of the above-mentioned technical solution, in the inner cavity of the inner cylinder 29, an inner water distribution plate-9 is provided at one end adjacent to the annular baffle plate 5,

The inner water distribution plate-9 is limited in the inner cavity of the inner cylinder body 29 by the limit ring 8;

In the inner cavity of the inner cylinder body 29, an inner water distribution plate 2 19 is provided adjacent to the end of the inner cylinder flange 24, and the right side of the inner water distribution plate 2 19 is provided with a movable plate 21, and the movable plate 21 and the inner water distribution plate 2 19 is provided with support rod 20,

The movable plate 21 is provided with a one-way valve 23,

The movable plate 21 is limited in the inner cavity of the inner cylinder 29 by the limit block 22,

A secondary separation bed 14 is formed between the inner water distribution board one 9 and the inner water distribution board two 19 .

The primary separation bed 13 and the secondary separation bed 14 are collectively referred to as the separation zone.

On the basis of the above technical solution, a drain pipe 26 is provided on the inner cylinder head 25 .

On the basis of the above technical solution, the oil collecting bag 15 is provided with an interface one 16 and an interface two 17 .

On the basis of the above technical solution, the mud collecting bag 3 is provided with an interface 3 30 .

On the basis of the above technical solution, the space surrounded by the left end head 10, the grid plate 12 and the annular baffle 5 is the water collection chamber 32,

The space surrounded by the grid plate 12, the upper water distribution plate 18, the cylinder body 1 and the right end head 227 is the oil collection chamber 33, as shown in Figure 1, the upper water distribution plate 18 serves as the boundary between the oil collection chamber 33 and the separation area ,

The space surrounded by the annular baffle 5, the lower water distribution plate 7, the cylinder body 1 and the right end head 227 is the water inlet chamber 31, as shown in Figure 1, the lower water distribution plate 7 serves as the boundary between the water inlet chamber 31 and the separation area .

On the basis of the above technical solution, the left ends of the upper water distribution plate 18 and the lower water distribution plate 7 are respectively connected with the annular baffle 5,

The right ends of the upper water distribution plate 18 and the lower water distribution plate 7 are connected with the right end head 27 respectively.

On the basis of the above-mentioned technical scheme, the built-in separation filler in the primary separation bed 13,

Elastic adsorption packing is installed in the secondary separation bed 14 .

On the basis of the above technical solution, the lower end of the left end head 10 is provided with a flushing pipe 4 and an air intake pipe 6,

One end of the flushing pipe 4 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and extends to the mud collection bag 3,

The flushing pipe 4 is provided with a branch pipe extending into the mud collection bag 3;

One end of the air intake pipe 6 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and is connected with the aerator 2, and the aerator 2 extends to the right end head 27,

The aerator 2 is parallel to the lower water distribution plate 7 .

On the basis of the above technical solution, the air intake pipe 6 is located under the lower water distribution plate 7 , and the flushing pipe 4 is located under the air intake pipe 6 .

On the basis of the above-mentioned technical scheme, the upper end of the left end head 10 is provided with a backwash pipe 11,

One end of the backwash pipe 11 is exposed outside the left end head 10 , and the other end penetrates the grid plate 12 and extends to the oil collecting bag 15 .

On the basis of the above technical solution, the backwash pipe 11 is located above the upper water distribution plate 18 .

On the basis of the above-mentioned technical scheme, the lower end of the right end head 27 is provided with a water inlet pipe 28,

One end of the water inlet pipe 28 is exposed outside the right end head 27 , and the other end is located in the water inlet chamber 31 .

On the basis of the above technical solution, the water inlet pipe 28 is located below the lower water distribution plate 7 .

When using the embedded oil-water separator of the present invention, the specific process is as follows:

The oily sewage enters the water inlet chamber 31 through the water inlet pipe 28,

The oily sewage enters the primary separation bed 13 through the lower water distribution plate 7 for preliminary separation: the oil in the oily sewage is separated from the water in the primary separation bed 13, gathers and floats up,

The oily sewage that has been preliminarily separated enters the oil collection chamber 33 through the upper water distribution plate 18, and the oil is collected by the oil collection bag 15 and then discharged through the interface 2 17;

The oily sewage that has been preliminarily separated enters the water collection chamber 32 through the grid plate 12, and then enters the secondary separation bed 14 through the inner water distribution plate 19, and the elastic adsorption filler in the secondary separation bed 14 absorbs the oil in the oily sewage to realize Secondary separation of oil and water;

The oily sewage through the secondary separation of oil and water passes through the check valve 23 on the inner water distribution plate 19 and the movable plate 21 successively, and then is discharged through the drain pipe 26, wherein the check valve can prevent oil from passing through.

After the embedded oil-water separator has been in operation for a period of time, the oil adsorbed by the elastic adsorption filler in the secondary separation bed 14 can be squeezed into the water collection chamber 32, enter the oil collection chamber 33 through the grid plate 12, and be absorbed by the oil collection bag 15. After collection, it is discharged through interface 2 17.

When extruding, the one-way valve 23 is closed, and the backwash water enters from the drain pipe 26, and the inner cloth water plate 2 19, the support rod 20, and the movable plate 21 move inward to extrude the elastic adsorption packing under the pressure of the backwash water. Squeeze out the absorbed oil etc.

At the same time, the suspended matter in the water will adhere to the filler, reducing the processing efficiency and processing capacity of the equipment, and backwashing operation is required; during backwashing, the backwashing water enters the equipment through the backwashing pipe 11, and ventilates through the air inlet pipe 6 at the same time. Complete the backwashing operation; after backwashing, the mud and sand in the water will be deposited in the mud collection bag 3, and water will be fed through the flushing pipe 4 when the mud is discharged to fully liquefy the mud and sand, and discharged through the interface three 30.

The design pressure of the oil-water separator is designed according to the actual demand, the minimum is not less than 0.2MPa, and the design medium temperature is ≤85°C. Using the embedded oil-water separator of the present invention, compared with the existing treatment equipment, the volume of the equipment is reduced, the occupied area is reduced, and the process flow is simple, which can not only improve the treatment efficiency and effluent water quality, but also reduce the engineering quantity and investment , when the oil content of influent water is ≤5000mg/L, the oil content of effluent water after treatment is ≤10mg/L.

The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

Claims (15)

1. An embedded oil-water separator, comprising a cylinder 1, the left end of which is provided with a left end cap 10, and the right end is provided with a right end cap 27; At the left end of the inner cavity of the cylinder body 1, a grid plate 12 and an annular baffle plate 5 are sequentially arranged in the vertical direction from top to bottom; The inner cylinder body 29 is inserted into the cylinder body 1 from the right end head 27, preferably centered and inserted into the cylinder body 1 from the right end head 27, The left end of the inner cylinder 29 is connected and fixed with the annular baffle 5, and the diameter of the inner hole of the annular baffle 5 is adapted to the diameter of the inner cylinder 29, The right end of the inner cylinder body 29 is exposed outside the right end head 27, and is provided with an inner cylinder flange 24, The inner cylinder head 25 is connected with the inner cylinder flange 24; The top of the inner cylinder 29 is provided with an upper water distribution plate 18, The bottom of the inner cylinder 29 is provided with a lower water distribution plate 7, The space enclosed by the upper water distribution plate 18, the lower water distribution plate 7 and the inner cylinder 29 is a primary separation bed 13; The top of cylinder body 1 is convexly provided with oil collecting bag 15, A mud collecting bag 3 is protruded from the bottom of the cylinder body 1 . 2. The embedded oil-water separator according to claim 1, characterized in that: In the inner cavity of the inner cylinder 29, one end adjacent to the annular baffle 5 is provided with an inner water distribution plate 9, The inner water distribution plate-9 is limited in the inner cavity of the inner cylinder body 29 by the limit ring 8; In the inner cavity of the inner cylinder body 29, an inner water distribution plate 2 19 is provided adjacent to the end of the inner cylinder flange 24, and the right side of the inner water distribution plate 2 19 is provided with a movable plate 21, and the movable plate 21 and the inner water distribution plate 2 19 is provided with support rod 20, The movable plate 21 is provided with a one-way valve 23, The movable plate 21 is limited in the inner cavity of the inner cylinder 29 by the limit block 22, A secondary separation bed 14 is formed between the inner water distribution board one 9 and the inner water distribution board two 19 . 3. The embedded oil-water separator according to claim 1, characterized in that: A drain pipe 26 is provided on the inner cylinder head 25 . 4. The embedded oil-water separator as claimed in claim 1, characterized in that: The oil collecting bag 15 is provided with an interface one 16 and an interface two 17. 5. The embedded oil-water separator as claimed in claim 1, characterized in that: The mud collecting bag 3 is provided with an interface three 30. 6. The embedded oil-water separator according to claim 1, characterized in that: The space surrounded by the left end head 10, the grid plate 12 and the annular baffle 5 is the water collection chamber 32, The space surrounded by the grid plate 12, the upper water distribution plate 18, the cylinder body 1 and the right end head 2 27 is the oil collection chamber 33, The space enclosed by the annular baffle 5 , the lower water distribution plate 7 , the cylinder body 1 and the right end head 2 27 is the water inlet chamber 31 . 7. The embedded oil-water separator according to claim 1, characterized in that: The left ends of the upper water distribution plate 18 and the lower water distribution plate 7 are respectively connected with the annular baffle 5, The right ends of the upper water distribution plate 18 and the lower water distribution plate 7 are connected with the right end head 27 respectively. 8. The embedded oil-water separator according to claim 2, characterized in that: Separation packing is installed in the primary separation bed 13, Elastic adsorption packing is installed in the secondary separation bed 14 . 9. The embedded oil-water separator according to claim 1, characterized in that: The lower end of the left end head 10 is provided with a flushing pipe 4 and an air intake pipe 6 . 10. The embedded oil-water separator according to claim 9, characterized in that: One end of the flushing pipe 4 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and extends to the mud collection bag 3, The flushing pipe 4 is provided with a branch pipe extending into the mud collecting bag 3 . 11. The embedded oil-water separator according to claim 9, characterized in that: One end of the air intake pipe 6 is exposed outside the left end head 10, and the other end penetrates the annular baffle 5 and is connected with the aerator 2, and the aerator 2 extends to the right end head 27, The aerator 2 is parallel to the lower water distribution plate 7 . 12. The embedded oil-water separator according to claim 11, characterized in that: The air intake pipe 6 is located under the lower water distribution plate 7 , and the flushing pipe 4 is located under the air intake pipe 6 . 13. The embedded oil-water separator according to claim 1, characterized in that: The upper end of the left end head 10 is provided with a backwash pipe 11 , one end of the backwash pipe 11 is exposed outside the left end head 10 , and the other end penetrates the grid plate 12 and extends to the oil collecting bag 15 . 14. The embedded oil-water separator according to claim 13, characterized in that: The backwash pipe 11 is located above the upper water distribution plate 18 . 15. The embedded oil-water separator according to claim 1, characterized in that: The lower end of the right end cap 27 is provided with a water inlet pipe 28 , one end of the water inlet pipe 28 is exposed outside the right end cap 27 , and the other end is located in the water inlet chamber 31 .