CN210001675U - Oil-water separation system - Google Patents

Oil-water separation system Download PDF

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Publication number
CN210001675U
CN210001675U CN201920581521.9U CN201920581521U CN210001675U CN 210001675 U CN210001675 U CN 210001675U CN 201920581521 U CN201920581521 U CN 201920581521U CN 210001675 U CN210001675 U CN 210001675U
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oil
tank
separation
water
port
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CN201920581521.9U
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Chinese (zh)
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王康
陈坤
黄春霞
章思航
万栋
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Wuhan Nine State Environmental Technology Co Ltd
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Wuhan Nine State Environmental Technology Co Ltd
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Abstract

The utility model relates to an oil-water separation system, it includes the air supporting pond, the buffer pool, separation tank and floater, be equipped with aeration equipment in the air supporting pond, be used for making oily waste water form upper oil slick and lower floor's water, the buffer pool is close to the air supporting pond setting, and the upper portion of air supporting pond is equipped with the overflow mouth with the buffer pool intercommunication, the separation pool is close to the buffer pool setting, and the upper portion of buffer pool is equipped with the second overflow mouth with the separation pool intercommunication, the lower part of buffer pool is equipped with the advection mouth with the separation pool intercommunication, the separation pool is equipped with oil drain port and outlet respectively, drain port department still is equipped with the drain valve, the floater is located in the separation tank, the density of floater is adjustable, be used for monitoring the liquid level height at separation layer interface, this oil-water separation system not only can solve the waste water yield little or intake at the time unstable oil separation tank poor effect's defect at the time, can also monitor the liquid level height at separation layer interface automatically.

Description

Oil-water separation system
Technical Field
The utility model relates to a sewage treatment field especially relates to kinds of oil-water separation system.
Background
With the continuous acceleration of the industrialization process in China, various oils are inevitably used in the industrial production process, so that a large amount of oily wastewater is generated. Floating oil, dispersed oil, emulsified oil and the like are usually present in the oily wastewater, and the complex oil particle composition causes a plurality of troubles in the sewage purification process.
The traditional oil-water separation adopts a horizontal flow type oil-water separation device or an inclined plate to separate oil, the working principle is that oil and water are primarily separated under the action of gravity, and the water content of the floating oil collected by the method is about 50 percent and is higher.
SUMMERY OF THE UTILITY MODEL
Based on this, it is necessary to provide kinds of oil-water separation systems capable of reducing the water content of the floating oil.
The utility model provides an above-mentioned technical problem's technical scheme as follows:
oil-water separation systems, which comprise an air flotation tank, a buffer tank, a separation tank and a floating ball;
an aeration device connected with an air compressor is arranged in the air floatation tank and is used for enabling the oily wastewater to form upper-layer floating oil and lower-layer water;
the buffer tank is arranged close to the floatation tank, an th overflow port communicated with the buffer tank is arranged at the upper part of the floatation tank, and the buffer tank collects upper-layer floating oil flowing from the floatation tank through the th overflow port;
the separation tank is arranged close to the buffer tank, a second overflow port communicated with the separation tank is arranged at the upper part of the buffer tank, and an advection port communicated with the separation tank is arranged at the lower part of the buffer tank; the separation tank is respectively provided with an oil discharge port and a water discharge port, the oil discharge port is positioned at the middle upper part of the separation tank, the water discharge port is arranged at the lower part of the separation tank, and the water discharge port is also provided with a water discharge valve;
the floating ball is arranged in the separation tank, the density of the floating ball is adjustable, and the floating ball is used for monitoring the liquid level height of an oil-water separation layer interface.
In embodiments, the floating ball is connected with the drain valve to form a floating ball valve which automatically controls the drainage of the lower layer of wastewater, so that the automatic control of the water content of the floating oil and the automatic drainage of the wastewater can be realized.
In embodiments, the oil drain port and the water drain port are both arranged on the side wall away from the horizontal flow port, and the influence of water fluctuation on the accuracy of testing the liquid level height of the oil-water separation layer interface is reduced.
In embodiments, an upper limit liquid level line of an interface of the oil-water separation layer and a lower limit liquid level line of the interface of the oil-water separation layer are further arranged in the separation pool and are located between the oil discharge port and the water discharge port, the upper limit liquid level line of the interface of the oil-water separation layer is arranged close to the oil discharge port, and the lower limit liquid level line of the interface of the oil-water separation layer is arranged close to the water discharge port, so that the water level condition can.
In embodiments, a slag separation basket is further arranged at the overflow port, so that impurities with large volume can be removed conveniently.
In embodiments, the buffer pool and the separation pool are formed by dividing pool bodies provided with middle barriers, and the influence of water fluctuation on the position of the floating ball is reduced.
The utility model has the advantages that:
above-mentioned oil-water separation system sets up the floater of air supporting pond, buffer pool, separation tank and adjustable density through the cooperation, not only can solve the defect that the oil removal pond oil removal effect is poor when the waste water yield is little or intake unstability, can also monitor the liquid level height at oil-water separation layer interface automatically, effectively and reduce the oil slick moisture content high-efficiently, also can improve oil-water separation system's degree of automation.
Drawings
FIG. 1 is a schematic view of a configuration of an oil-water separation system according to an embodiment ;
FIG. 2 is a schematic diagram showing the distribution of the upper limit liquid level line and the lower limit liquid level line of the oil-water separation layer interface in the oil-water separation system of FIG. 1.
In the drawings, the components represented by the respective reference numerals are listed below:
1. the device comprises a water inlet pipe, 10, an air flotation tank, 101, an aeration device, 102, a slag separation basket, 11, a buffer tank, 111, an advection port, 12, a separation tank, 121, an oil discharge port, 122, a water discharge valve, 123, an oil-water separation layer interface upper limit liquid level line, 124, an oil-water separation layer interface lower limit liquid level line, 13 and a floating ball.
Detailed Description
It should be noted that when elements are considered to be "connected" to another elements, it can be directly connected to another elements or intervening elements may be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1, the oil-water separation system of includes an air flotation tank 10, a buffer tank 11, a separation tank 12, and a floating ball 13.
In the present embodiment, an aeration device 101 for connecting with an air compressor is provided in the air flotation tank 10, and is used for forming the oily wastewater discharged through the water inlet pipe 1 into upper-layer oil slick and lower-layer water. The flotation tank 10 can remove the floating oil and simultaneously stir the floating oil by air to demulsify the floating oil, thereby realizing the high-efficiency separation of a floating oil layer and a water layer in the oily wastewater.
, a slag separating basket 102 is arranged at the overflow port to remove impurities with large volume.
In the embodiment, the buffer tank 11 is arranged close to the floatation tank 10, the th overflow port communicated with the buffer tank 11 is arranged at the upper part of the floatation tank 10, and the buffer tank 11 collects the upper floating oil flowing from the floatation tank 10 through the th overflow port, and the buffer tank 11 communicated with the floatation tank 10 in an overflow mode is arranged between the floatation tank 10 and the separation tank 12, so that the influence of water fluctuation on the position of the floating ball 13 in the separation tank 12 can be effectively reduced, and the oil-water standing separation effect is ensured.
In the present embodiment, the separation tank 12 is provided in the vicinity of the buffer tank 11, a second overflow port communicating with the separation tank 12 is provided in the upper portion of the buffer tank 11, and an advection port 111 communicating with the separation tank 12 is provided in the lower portion of the buffer tank 11. The separation tank 12 is provided with an oil drain port 121 and a water drain port, respectively. The oil drain port 121 is located at the middle upper portion of the separation tank 12 for automatically draining oil when the oil layer exceeds the oil drain port 121. The water outlet is arranged at the lower part of the separation tank 12, and a water discharge valve 122 is also arranged at the water outlet.
The upper end oil layer of buffer pool 11 and separation tank 12 circulates through the overflow mode, and the lower extreme water layer communicates through the advection mode, can effectively reduce the water fluctuation, guarantees that profit separation of standing is simple, high-efficient.
Preferably, the oil drain port 121 and the water drain port are both disposed on the side wall away from the horizontal flow port 111, so as to reduce the influence of water fluctuation on the accuracy of testing the liquid level height of the oil-water separation layer interface.
, in this embodiment, the separation tank 12 is further provided with an upper boundary level line 123 and a lower boundary level line 124 between the drain port 121 and the drain port, the upper boundary level line 123 is disposed close to the drain port 121, and the lower boundary level line 124 is disposed close to the drain port, so as to facilitate direct observation of the water level.
Preferably, the buffer tank 11 and the separation tank 12 are formed by arranging the middle barriers 112 in the middle of the tank bodies, so that the fluctuation of water bodies is reduced, the construction is convenient, and the cost is saved.
In this embodiment, the floating ball 13 is disposed in the separation tank 12, and the density of the floating ball 13 can be adjusted to be between water and oil, so that the floating ball 13 is suspended between an oil layer and a water layer for monitoring the liquid level height of the oil-water separation layer interface. The density of the floating ball 13 can be adjusted according to the requirement of the water content of the produced oil.
For example, the upper skin level limit 123 is preferably twenty cm below the drain port, and the lower skin level limit 124 is preferably twenty cm above the drain port. When the floating ball 13 tests that the liquid level of the oil-water separation layer interface is higher than the upper limit liquid level line 123 of the oil-water separation layer interface, the drain valve 122 is controlled to be opened, and drainage is started; when the floating ball 13 tests that the liquid level of the oil-water separation layer interface is lower than the oil-water separation layer interface lower limit liquid level line 124, the control drain valve 122 is closed, water storage is started, the liquid outlet liquid in the separation tank 12 is in a standing state, and oil-water stable separation is realized.
Preferably, the floating ball 13 is connected with the drain valve 122 to form a floating ball valve for automatically controlling the drainage of the lower layer of wastewater, and the step can be further implemented to automatically control the water content of the floating oil and automatically drain the wastewater.
The oil-water separation system of the embodiment is provided with the air flotation tank 10, the buffer tank 11, the separation tank 12 and the floating ball 13 with adjustable density which are sequentially matched, so that the defect that the oil separation effect of the oil separation tank is poor when the amount of wastewater is small or water is unstable can be overcome, the liquid level height of an oil-water separation layer interface can be automatically monitored, the water content of floating oil is effectively and efficiently reduced, the automation degree of the oil-water separation system can be improved, and the real-time controllability of the water content of the discharged oil can be realized according to the process and flow requirements.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1, oil-water separation systems, which is characterized by comprising an air flotation tank, a buffer tank, a separation tank and a floating ball;
an aeration device connected with an air compressor is arranged in the air floatation tank and is used for enabling the oily wastewater to form upper-layer floating oil and lower-layer water;
the buffer tank is arranged close to the floatation tank, an th overflow port communicated with the buffer tank is arranged at the upper part of the floatation tank, and the buffer tank collects upper-layer floating oil flowing from the floatation tank through the th overflow port;
the separation tank is arranged close to the buffer tank, a second overflow port communicated with the separation tank is arranged at the upper part of the buffer tank, and an advection port communicated with the separation tank is arranged at the lower part of the buffer tank; the separation tank is respectively provided with an oil discharge port and a water discharge port, the oil discharge port is positioned at the middle upper part of the separation tank, the water discharge port is arranged at the lower part of the separation tank, and the water discharge port is also provided with a water discharge valve;
the floating ball is arranged in the separation tank, the density of the floating ball is adjustable, and the floating ball is used for monitoring the liquid level height of an oil-water separation layer interface.
2. The system of claim 1, wherein the float ball is coupled to the drain valve to form a float valve that automatically controls the draining of the lower layer of wastewater.
3. The oil and water separation system of claim 1, wherein the drain port and the drain port are both located on a side wall remote from the horizontal flow port.
4. The oil and water separation system of any one of claims 1 to 3 and , wherein the separation tank further comprises an upper boundary level and a lower boundary level between the oil drain port and the water drain port, the upper boundary level being located near the oil drain port and the lower boundary level being located near the water drain port.
5. The oil-water separation system of any one of claims 1-3 and wherein a slag trap basket is further disposed at the overflow port.
6. The oil and water separation system of any one of claims 1 to 3 and , wherein the buffer tank and the separation tank are divided by tank bodies provided with intermediate barriers.
CN201920581521.9U 2019-04-24 2019-04-24 Oil-water separation system Active CN210001675U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920581521.9U CN210001675U (en) 2019-04-24 2019-04-24 Oil-water separation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920581521.9U CN210001675U (en) 2019-04-24 2019-04-24 Oil-water separation system

Publications (1)

Publication Number Publication Date
CN210001675U true CN210001675U (en) 2020-01-31

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398626A (en) * 2021-06-25 2021-09-17 上海仅鑫制药设备工程有限公司 Continuous operation oil-liquid separator
CN113476897A (en) * 2021-07-21 2021-10-08 三马紧固件(浙江)股份有限公司 Oil-water separation device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113398626A (en) * 2021-06-25 2021-09-17 上海仅鑫制药设备工程有限公司 Continuous operation oil-liquid separator
CN113398626B (en) * 2021-06-25 2022-11-04 上海仅鑫制药设备工程有限公司 Continuous operation oil-liquid separator
CN113476897A (en) * 2021-07-21 2021-10-08 三马紧固件(浙江)股份有限公司 Oil-water separation device
CN113476897B (en) * 2021-07-21 2023-05-16 三马紧固件(浙江)股份有限公司 Oil-water separation device

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