CN216457196U

CN216457196U - Oil-water separator with self-cleaning function for oil field metering station

Info

Publication number: CN216457196U
Application number: CN202122813513.2U
Authority: CN
Inventors: 王杰; 陈娟; 隋国勇; 孟祥波; 邹德超
Original assignee: China Petroleum and Chemical Corp; Technology Inspection Center of Sinopec Shengli Oilfield Co; Shengli Oilfield Testing and Evaluation Research Co Ltd
Current assignee: China Petroleum and Chemical Corp; Technology Inspection Center of Sinopec Shengli Oilfield Co; Shengli Oilfield Testing and Evaluation Research Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-05-10
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses an oil-water separator with a self-cleaning function for an oil field metering station, which relates to the technical field of oil-water separation treatment of oil fields and comprises a shell, wherein a vertical partition plate is arranged in the shell, and the partition plate divides an inner cavity of the shell into a separation cavity and an oil collection cavity; an inlet is arranged on the shell above the separation cavity, a water outlet is arranged on the shell at the bottom of the separation cavity, and an oil outlet is arranged on the shell at the bottom of the oil collection cavity; a tee joint is arranged on the water outlet, and a first valve and a second valve are respectively arranged on two outlets of the tee joint; the top of the clapboard is provided with a filtering component; the self-cleaning component comprises a bottom cabin, a connecting pipe and a water return pipe, wherein the bottom cabin is arranged at the bottom of the shell and is communicated with the first valve through the connecting pipe; a pressure pump is arranged on the connecting pipe, one end of the water return pipe is communicated with the bottom cabin, and the other end of the water return pipe penetrates through the bottom of the shell and extends into the separation cavity; the upper end of the water return pipe is fixedly connected with a vertical pipe, and the outer side of the vertical pipe is provided with a spray head; the device has the advantages of simple structure, strong practicability and self-cleaning function.

Description

Oil-water separator with self-cleaning function for oil field metering station

Technical Field

The utility model relates to the technical field of oil-water separation treatment of oil fields, in particular to an oil-water separator with a self-cleaning function for an oil field metering station.

Background

Because most oil fields in China and even all over the world are developed by water injection for a long time at present, the water content in the output liquid of the oil field is high and even reaches more than 95%, and the crude oil can enter the next procedure after the oil and water in the output liquid are separated.

Current profit shunt is accomplishing the work back, and a large amount of impurity can be remained to inside, can't clear up, piles up a large amount of impurity and can cause serious influence to the crude oil quality of later stage output, and current oil water separator can't filter the impurity in the liquid when carrying out the water oil separating in addition, can cause the inside impurity that can remain of crude oil of deriving.

Chinese patent CN110159248B discloses an oil field oil-water automatic separation system, which comprises a particle removing device and a plurality of groups of oil-water separation units, wherein the oil-water separation units comprise an oil-water separator and a feeding pipeline, the feeding pipeline is provided with an oil-water proportional sensor and a multi-phase flow valve, the oil-water proportional sensor is provided with an analog-digital signal converter, the feeding pipeline is further connected with a drainage branch line and an oil drainage branch line, the drainage branch line is provided with a drain valve, the oil drainage branch line is provided with an oil drainage valve, and the multi-phase flow valve, the drain valve and the oil drainage valve are provided with corresponding valve controllers. The oil-water separation unit and the oil discharge branch line form an automatic oil removal system for oilfield reinjection water, and are used for automatically removing oil from oilfield sewage; the oil-water separation unit and the drainage branch line form an automatic oil field produced liquid separation unit for automatically removing water from produced liquid; the oil-water separator in the system does not have a self-cleaning function, and a large amount of impurities are attached to the inner wall of the shell after the oil-water separator is used for a long time.

Chinese patent CN105569629B discloses an oilfield produced liquid on-site water diversion and water treatment device, which comprises a support, a tank body, a hydrocyclone, an ejector and a sewage backflow pump, wherein the tank body is arranged on the support, the upper part of the tank body is provided with a mist catching net, the hydrocyclone is vertically inserted from the top of the tank body, the side wall of the top of the hydrocyclone is provided with a produced liquid inlet, the center of the top of the hydrocyclone is provided with an overflow port, the tank body is respectively provided with a gas outlet, an overflow inlet, a water outlet, a dissolved gas liquid inlet, a lower water-containing oil gas outlet and a sand discharge port, the inlet of the sewage backflow pump is connected with the water outlet through a pipeline, the outlet and the gas outlet of the sewage backflow pump are respectively connected with the inlet of the ejector through pipelines, and the outlet of the ejector is connected with the dissolved gas liquid inlet through a pipeline; the processing device does not have a self-cleaning function, and impurities attached to the tank body can influence the separation function after long-time use.

Chinese patent CN206715377U discloses a high water content produced liquid pre-water separation system and an elevation type separator. The system comprises an elevation angle type separator and a settling tank, wherein the elevation angle type separator is provided with a liquid inlet communicated with an oilfield produced liquid pipeline and a water outlet used for discharging separated sewage, the water outlet of the elevation angle type separator is communicated with the water inlet of the settling tank, the settling tank is also provided with a water outlet communicated with an oilfield water injection pipeline, the elevation angle type separator comprises a tank body, at least one corrugated plate aggregation group is arranged at the lower reaches of the liquid inlet and the upper reaches of the water outlet in the tank body, the corrugated plate aggregation group comprises laminated corrugated plates, a channel through which oil-water mixed liquid flows is arranged between every two adjacent corrugated plates, and the corrugated plates are obliquely arranged relative to the length direction of the tank body; the elevation separator in the technical scheme also does not have a self-cleaning function.

Therefore, it is urgently needed to develop an oil-water separator which can clean internal impurities and filter impurities in liquid.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an oil-water separator with a self-cleaning function for an oil field metering station, aiming at the defects in the prior art.

The technical scheme of the utility model is as follows: an oil-water separator with a self-cleaning function for an oil field metering station comprises a shell, wherein a vertical partition plate is arranged in the shell, and divides an inner cavity of the shell into a separation cavity and an oil collecting cavity; an inlet is formed in the top plate of the shell above the separation cavity, a water outlet is formed in the bottom plate of the shell at the bottom of the separation cavity, and an oil outlet is formed in the bottom plate of the shell at the bottom of the oil collection cavity; a tee joint is arranged on the water outlet, a first valve and a second valve are respectively arranged on two outlets of the tee joint, and a filtering component is arranged at the top of the partition plate;

the self-cleaning assembly comprises a bottom cabin, a connecting pipe and a water return pipe, wherein the bottom cabin is arranged at the bottom of the shell and is communicated with the first valve through the connecting pipe; a pressure pump is arranged on the connecting pipe, one end of the water return pipe is communicated with the bottom cabin, and the other end of the water return pipe penetrates through the bottom of the shell and extends into the separation cavity; the upper end fixedly connected with riser of wet return, the outside fixed mounting of riser has a plurality of shower nozzle.

Preferably, the filter assembly comprises a filter screen, two ends of the top of the partition board are respectively provided with a stand column, the filter screen is connected with the two stand columns in a sliding mode, and a maintenance opening convenient to detach the filter screen is formed in the top plate of the shell.

Preferably, the opposite sides of the two upright posts are both provided with side grooves, the two sides of the filter screen are both provided with sliding blocks matched with the side grooves, and the filter screen is slidably mounted in the side grooves through the sliding blocks; the sealing strip is installed to the bottom of filter screen, the upper surface of baffle is equipped with the kerve with the sealing strip adaptation, the sealing strip joint is in the inboard of kerve.

Preferably, the top of the bottom cabin is provided with a top port in butt joint with the water return pipe, and the side part of the bottom cabin is provided with a side port in butt joint with the connecting pipe; a filter plate is arranged in the bottom cabin and is close to the top opening; and a sewage outlet is arranged on the bottom cabin.

Preferably, the lateral part of under-deck is equipped with the socket with the filter adaptation, the filter activity cartridge is in the socket.

Preferably, a plurality of rows of spray heads are fixedly mounted on the outer side of the vertical pipe, and the plurality of rows of spray heads are uniformly distributed along the circumferential direction of the vertical pipe.

Preferably, a vertical viewing mirror is arranged on the side wall of the shell.

Preferably, a dirt cleaning opening is formed in the bottom of the side wall of the shell of the separation cavity.

Compared with the prior art, the utility model has the following advantages:

be provided with tee bend and self-cleaning subassembly in this device, can control the flow direction of water through the tee bend, make water can directly discharge or enter into the inside of under-deck, enter into the inside water of under-deck and enter into the riser through the filtration of filter in, then spray out through the shower nozzle to the realization is to the effect that the impurity on the separation chamber shells inner wall washed, has avoided the problem because of the too much influence crude oil quality of the inside impurity of casing.

The device is internally provided with the filtering component, when oil-water separation is carried out, crude oil floating on the water surface flows to the other side of the partition plate through the filtering net, and when the crude oil passes through the filtering net, impurities with larger particles can be blocked by the filtering net; when the filter screen needs to be changed, the filter screen only needs to be taken out from between the two stand columns, and the filter screen can be cleaned or changed, so that the problem of impurity mixing in crude oil is effectively solved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the overall construction of the present invention;

FIG. 3 is an exploded view of the separator structure of the present invention;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is an enlarged view at B in fig. 2.

In the figure: 1. the device comprises a shell, 101, a viewing mirror, 102, a dirt cleaning port, 2, a partition board, 201, a bottom groove, 3, a separation cavity, 4, an oil collecting cavity, 5, an inlet, 6, a water outlet, 7, an oil outlet, 8, a tee joint, 9, a first valve, 10, a second valve, 11, a bottom cabin, 1101, a top port, 1102, a side port, 1103, a sewage outlet, 1104, a socket, 12, a connecting pipe, 13, a pressure pump, 14, a water return pipe, 15, a vertical pipe, 16, a spray head, 17, a filter screen, 1701, a sliding block, 1702, a sealing strip, 18, a stand column, 1801, a side groove, 19, an access hole, 20 and a filter board.

Detailed Description

The utility model is further illustrated below with reference to the figures and examples.

Example one

Referring to fig. 1-2, the oil-water separator with the self-cleaning function for the oil field metering station comprises a shell 1, wherein a vertical partition plate 2 is arranged in the shell 1, and the partition plate 2 divides an inner cavity of the shell 1 into a separation cavity 3 and an oil collection cavity 4; an inlet 5 is arranged on the top plate of the shell 1 above the separation cavity 3, a water outlet 6 is arranged on the bottom plate of the shell 1 at the bottom of the separation cavity 3, and an oil outlet 7 is arranged on the bottom plate of the shell 1 at the bottom of the oil collecting cavity 4; a tee joint 8 is arranged on the water outlet 6, a first valve 9 and a second valve 10 are respectively arranged on two outlets of the tee joint 8, and the effect of changing the water flow direction can be achieved by opening and closing the first valve 9 and the second valve 10; the top of the clapboard 2 is provided with a filtering component;

the oil-water separator also comprises a self-cleaning component, wherein the self-cleaning component comprises a bottom cabin 11, a connecting pipe 12 and a water return pipe 14, the bottom cabin 11 is arranged at the bottom of the shell 1, and the bottom cabin 11 is communicated with the first valve 9 through the connecting pipe 12; a pressure pump 13 is arranged on the connecting pipe, one end of a water return pipe 14 is communicated with the bottom cabin 11, and the other end of the water return pipe penetrates through the bottom of the shell 1 and extends into the separation cavity 3; the upper end of the water return pipe 14 is fixedly connected with a vertical pipe 15, and a plurality of nozzles 16 are fixedly arranged on the outer side of the vertical pipe 15.

In more detail, referring to fig. 5, the bottom compartment 11 is provided with a top port 1101 at the top for interfacing with the water return pipe 14, and a side port 1102 at the side for interfacing with the connection pipe 12; a filter plate 20 is arranged in the bottom cabin 11, and the filter plate 20 is close to the top opening 1101; a sewage outlet 1103 is arranged on the bottom cabin 11.

When the oil well separator is used, oil well output liquid enters the separation cavity 3 in the shell 1 through the inlet 5, crude oil floating on the water surface flows into the oil collecting cavity 4 on the other side of the separator 2 through the filter assembly, impurities with large particles in the crude oil are blocked by the filter assembly when the crude oil passes through the filter assembly, and the separated crude oil is discharged out of the oil well separator through the oil outlet 7.

After oil-water separation is completed, a large amount of water can be retained in the separation chamber 3 of the shell 1, at the moment, the first valve 9 is opened to enable the water in the separation chamber 3 to be conveyed to the interior of the bottom cabin 11 through the connecting pipe 12, after the water is filtered by the filter plate 20 in the bottom cabin 11, the water pressurized by the pressure pump 13 enters the vertical pipe 15 through the top port 1101 and the water return pipe 14, and is finally sprayed into the separation chamber 3 through the spray head 16 to flush impurities on the inner wall of the shell 1 of the separation chamber 3; after a certain time of flushing, the first valve 9 is closed and the second valve 10 is opened at the same time, so that the sewage in the separation chamber 3 is discharged; and finally, opening a sewage outlet 1103 on the bottom cabin 11 to clean the filtered impurities.

Be provided with tee bend 8 and self-cleaning subassembly in this device, can control the flow direction of water through tee bend 8, make water can directly discharge or enter into the inside of under-deck 11, the filtration that enters into under-deck 11 inside water through filter 20 enters into riser 15 in, then sprays out through shower nozzle 16 to the effect that the impurity on the realization is washed to separation chamber 3 casing 1 inner wall has been avoided because of the too much problem that influences the crude oil quality of casing 1 inside impurity.

Example two

Referring to fig. 5, the top of the bottom compartment 11 is provided with a top port 1101 butted with the water return pipe 14, and the side is provided with a side port 1102 butted with the connecting pipe 12; a filter plate 20 is arranged in the bottom cabin 11, and the filter plate 20 is close to the top opening 1101; a sewage outlet 1103 is arranged on the bottom cabin 11.

The difference between the present embodiment and the first embodiment is: the structure of the bottom cabin 11 is optimized in this embodiment, specifically as follows:

referring to fig. 4, the side of the bottom compartment 11 of this embodiment is provided with a socket 1104 adapted to the filter plate 20, and the filter plate 20 is movably inserted into the socket 1104.

When the filter plate 20 needs to be replaced, the filter plate 20 can be cleaned and replaced by simply pulling the filter plate 20 out of the receptacle 1104.

EXAMPLE III

the oil-water separator also comprises a self-cleaning component, the self-cleaning component comprises a bottom cabin 11, a connecting pipe 12 and a water return pipe 14, the bottom cabin 11 is arranged at the bottom of the shell 1, and the bottom cabin 11 is communicated with the first valve 9 through the connecting pipe 12; a pressure pump 13 is arranged on the connecting pipe, one end of a water return pipe 14 is communicated with the bottom cabin 11, and the other end of the water return pipe penetrates through the bottom of the shell 1 and extends into the separation cavity 3; the upper end of the water return pipe 14 is fixedly connected with a vertical pipe 15, and a plurality of nozzles 16 are fixedly arranged on the outer side of the vertical pipe 15.

In more detail, the side of the bottom compartment 11 is provided with a socket 1104 adapted to the filter plate 20, and the filter plate 20 is movably inserted into the socket 1104.

The present embodiment is different from the second embodiment in that: this embodiment has refined filtering component's structure, specifically is:

referring to fig. 3, the filter assembly of this embodiment includes a filter screen 17, two ends of the top of the partition board 2 are respectively provided with a stand column 18, the filter screen 17 is slidably connected with the two stand columns 18, and a top plate of the casing 1 is provided with an access opening 19 for facilitating the removal of the filter screen 17.

In more detail, side grooves 1801 are formed in opposite sides of two upright posts 18, sliders 1701 matched with the side grooves 1801 are arranged on two sides of the filter screen 17, and the filter screen 17 is slidably mounted in the side grooves 1801 through the sliders 1701; sealing strip 1702 is installed to the bottom of filter screen 17, and the upper surface of baffle 2 is equipped with the kerve 201 with sealing strip 1702 adaptation, and sealing strip 1702 joint is in the inboard of kerve 201.

During oil-water separation, crude oil floating on the water surface flows to the other side of the partition board 2 through the filter screen 17, and when the crude oil passes through the filter screen 17, impurities with larger particles are blocked by the filter screen 17; when the filter screen 17 needs to be replaced, the filter screen 17 can be cleaned or replaced only by taking out the filter screen 17 from between the two upright posts 18, so that the problem of impurity mixing in crude oil is effectively solved.

Example four

The filter assembly comprises a filter screen 17, two ends of the top of the partition board 2 are respectively provided with a stand column 18, the filter screen 17 is connected with the two stand columns 18 in a sliding mode, and a top plate of the shell 1 is provided with an access hole 19 convenient for the filter screen 17 to be detached.

The present embodiment is different from the third embodiment in that: in this embodiment, a plurality of rows of nozzles 16 are fixedly installed on the outer side of the stand pipe 15, and the plurality of rows of nozzles 16 are uniformly distributed along the circumferential direction of the stand pipe 15; this setting can realize carrying out the omnidirectional to washing to the impurity on 3 casings of disengagement chamber 1 inner walls, further promotes the self-cleaning effect of this device.

EXAMPLE five

As a preferred embodiment of the present invention, the present embodiment optimizes the structure of the housing 1 on the basis of the fourth embodiment, specifically:

referring to fig. 1-2, in the present embodiment, a vertical viewing mirror 101 is disposed on a side wall of the housing 1, so that an operator can observe the internal environment and liquid level of the housing 1 conveniently; in addition, the bottom of the side wall of the shell 1 of the separation cavity 3 is provided with a dirt cleaning port 102; after long-term use, a large amount of stubborn impurities are deposited at the bottom of the separation cavity 3, and the cleaning port 102 is opened for cleaning.

The present invention is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention, and the contents of the changes still fall within the scope of the present invention.

Claims

1. The utility model provides an oil field oil water separator for metering station with self-cleaning function which characterized in that: the oil separator comprises a shell, wherein a vertical partition plate is arranged in the shell, and divides an inner cavity of the shell into a separation cavity and an oil collection cavity; an inlet is formed in the top plate of the shell above the separation cavity, a water outlet is formed in the bottom plate of the shell at the bottom of the separation cavity, and an oil outlet is formed in the bottom plate of the shell at the bottom of the oil collection cavity; a tee joint is arranged on the water outlet, a first valve and a second valve are respectively arranged on two outlets of the tee joint, and a filtering component is arranged at the top of the partition plate;

2. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 1, wherein: the filter assembly comprises a filter screen, two ends of the top of the partition board are respectively provided with a stand column, the filter screen is connected with the two stand columns in a sliding mode, and an access hole convenient to detach the filter screen is formed in the top plate of the shell.

3. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 2, wherein: the two sides of the filter screen are provided with sliding blocks matched with the side grooves, and the filter screen is slidably mounted in the side grooves through the sliding blocks; the sealing strip is installed to the bottom of filter screen, the upper surface of baffle is equipped with the kerve with the sealing strip adaptation, the sealing strip joint is in the inboard of kerve.

4. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 1, wherein: the top of the bottom cabin is provided with a top port butted with the water return pipe, and the side part of the bottom cabin is provided with a side port butted with the connecting pipe; a filter plate is arranged in the bottom cabin and is close to the top opening; and a sewage outlet is arranged on the bottom cabin.

5. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 4, wherein: the lateral part of under deck is equipped with the socket with the filter adaptation, the filter activity cartridge is in the socket.

6. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 1, wherein: and a plurality of rows of spray heads are fixedly arranged on the outer side of the vertical pipe and are uniformly distributed along the circumferential direction of the vertical pipe.

7. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 1, wherein: and a vertical sight glass is arranged on the side wall of the shell.

8. The oil-water separator with self-cleaning function for the oil field metering station as claimed in claim 1, wherein: and a dirt cleaning port is formed in the bottom of the side wall of the shell of the separation cavity.