CN215480344U

CN215480344U - Automatic oil extraction device of high COD salt water MVR vaporization system

Info

Publication number: CN215480344U
Application number: CN202121838992.7U
Authority: CN
Inventors: 万起展; 张小江; 周齐; 陈竹林
Original assignee: Jiangsu Sunevar Energy Technology Co ltd
Current assignee: Jiangsu Sunevar Energy Technology Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-11
Anticipated expiration: 2031-08-06

Abstract

The utility model provides an automatic oil discharge device of a high-COD saline water MVR evaporation system, which comprises a gas-liquid separator, an oil discharge pump, a thickener, an oil receiving groove and a mother liquid tank, wherein the oil discharge pump is connected between the gas-liquid separator and the thickener through a pipeline and is used for pumping materials at the upper part of a liquid level in the gas-liquid separator into the thickener, the thickener is provided with an oil discharge port and an overflow port, the oil discharge port is connected with the oil receiving groove through an oil discharge pipe, and the overflow port is connected with the mother liquid tank through an overflow pipe; the overflow port is arranged by inclining upwards with the fixed end of the thickener, the oil discharge port is arranged horizontally with the fixed end of the thickener, and the highest point of the upward inclination of the overflow port and the lowest point of the horizontal arrangement of the oil discharge port are positioned on the same horizontal plane.

Description

Automatic oil extraction device of high COD salt water MVR vaporization system

Technical Field

The utility model relates to an automatic oil discharge device, in particular to an automatic oil discharge device of a high-COD saline water MVR evaporation system.

Background

In the evaporation process of the wastewater containing high-concentration COD, organic matters can be continuously enriched in a steam-water separator of an evaporator, and the evaporation capacity of an evaporation system is reduced due to the extremely high boiling point of the organic matters. And when the temperature is reduced, the viscosity of the organic matters is increased, so that pipelines are blocked or the organic matters are adhered to the inner wall of the container, and the equipment is paralyzed.

Therefore, an automatic oil discharge device of the MVR evaporation system of the high COD saline water, which has a simple structure and can better discharge oil in the separator out of the equipment, is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic oil discharge device of a high-COD saline water MVR evaporation system, which has a simple structure and can better discharge oil in a separator out of equipment.

The utility model provides the following technical scheme:

an automatic oil discharge device of a high-COD saline water MVR evaporation system comprises a gas-liquid separator, an oil discharge pump, a thickener, an oil receiving groove and a mother liquid tank, wherein the oil discharge pump is connected between the gas-liquid separator and the thickener through a pipeline and is used for pumping materials at the upper part of a liquid level in the gas-liquid separator into the thickener, the thickener is provided with an oil discharge port and an overflow port, the oil discharge port is connected with the oil receiving groove through an oil discharge pipe, and the overflow port is connected with the mother liquid tank through an overflow pipe; the overflow port is arranged by inclining upwards with the fixed end of the thickener, the oil discharge port is arranged horizontally with the fixed end of the thickener, and the highest point of the upward inclination of the overflow port and the lowest point of the horizontal arrangement of the oil discharge port are positioned on the same horizontal plane.

Preferably, the top of the overflow port is provided with a rounded corner connected to the overflow pipe, so that oil flowing into the overflow pipe can be further reduced.

Preferably, the included angle between the overflow port and the side wall of the thickener is 30-85 degrees.

Preferably, the angle between the overflow port and the side wall of the thickener is 80 degrees.

Preferably, the bottom end of the thickener is connected with the centrifuge through a pipeline.

Preferably, a liquid outlet of the centrifuge after solid-liquid separation is communicated with a mother liquor tank, and mother liquor in the mother liquor tank is refluxed and pumped into the heater through a reflux pump.

The utility model has the beneficial effects that: because the density of organic matter is little, the quality is light, often can float in the upper strata of water, when organic matter (oil) enrichment in the vapour and liquid separator reaches the certain degree, through opening the oil extraction pump, the material that contains higher organic matter with liquid level upper portion in the vapour and liquid separator is beaten out through the oil extraction pump, discharge in the stiff ware, because the overflow mouth is by the stiff end tilt up setting with the stiff ware, the oil drain port is by the stiff end level setting with the stiff ware, and the highest point of overflow mouth tilt up and the minimum that the oil drain port level set up are located same horizontal plane, consequently float in the organic matter (oil) on upper strata, can automatically drain away through the oil drain port under the buoyancy of water, flow to the oil drain tank through the oil drain pipe, and also can accomplish as few inclusion overflow mouth as far as possible, thereby reach more effective oil extraction purpose.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

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

FIG. 2 is a schematic structural view of a thickener;

notation in the figure: 1 is a gas-liquid separator, 2 is an oil discharge pump, 3 is a thickener, 4 is an oil receiving groove, 5 is a mother liquor tank, 6 is an oil discharge port, 7 is an overflow port, 8 is an arc corner, 9 is a centrifugal machine, 10 is a reflux pump, 11 is a heater, 12 is an oil discharge pipe, and 13 is an overflow pipe.

Detailed Description

With reference to fig. 1 to 2, an automatic oil drainage device for a high COD brine MVR evaporation system is shown in this embodiment, and includes a gas-liquid separator 1, an oil drainage pump 2, a thickener 3, an oil receiving tank 4, and a mother liquor tank 5, where the oil drainage pump 2 is connected between the gas-liquid separator 1 and the thickener 3 through a pipeline, and is used for pumping materials at the upper part of a liquid level in the gas-liquid separator 1 into the thickener 3, the thickener 3 is provided with an oil drainage port 6 and an overflow port 7, the oil drainage port 6 is connected to the oil receiving tank through an oil drainage pipe 12, and the overflow port 7 is connected to the mother liquor tank 5 through an overflow pipe 13; the overflow port 7 is arranged by inclining upwards with the fixed end of the thickener 3, the oil discharge port 6 is arranged by being horizontal with the fixed end of the thickener 3, and the highest point M of the upward inclination of the overflow port 7 and the lowest point P of the horizontal arrangement of the oil discharge port 6 are positioned on the same horizontal plane. The top of the overflow port 7 is provided with a circular arc-shaped corner 8 connected to the overflow pipe, so that the oil flowing into the overflow pipe can be further reduced. The angle between the overflow port 7 and the side wall of the thickener 3 is 80 degrees. The bottom end of the thickener 3 is connected with a centrifuge 9 through a pipeline. A liquid outlet of the centrifuge 9 after solid-liquid separation is communicated with the mother liquor tank 5, and mother liquor in the mother liquor tank 5 flows back to be pumped into a heater 11 through a reflux pump 10.

The working principle of the utility model is as follows: because the density of organic matter is little, the quality is light, often can float in the upper strata of water, when organic matter (oil) enrichment in gas-liquid separator 1 reaches certain degree, through opening oil extraction pump 2, the material that contains higher organic matter on liquid level upper portion in gas-liquid separator 1 is beaten out through oil extraction pump 2, arrange in stiff ware 3, because overflow mouth 7 is by the stiff end tilt up setting with stiff ware 3, oil drain mouth 6 is by the stiff end level setting with stiff ware 3, and the most significant point of overflow mouth 7 tilt up and the minimum point that oil drain mouth 6 level set up are located same horizontal plane, consequently float in the organic matter (oil) on upper strata, can go away through oil drain mouth 6 automation under the buoyancy of water, flow to the oil drain tank through the oil drain pipe, and also can accomplish as few inclusion overflow mouth 7 of getting into as far as possible, thereby reach more effective oil extraction mesh.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The automatic oil discharge device of the MVR evaporation system for high-COD saline water is characterized by comprising a gas-liquid separator, an oil discharge pump, a thickener, an oil receiving groove and a mother liquid tank, wherein the oil discharge pump is connected between the gas-liquid separator and the thickener through a pipeline and used for pumping materials at the upper part of a liquid level in the gas-liquid separator into the thickener, the thickener is provided with an oil discharge port and an overflow port, the oil discharge port is connected with the oil receiving groove through an oil discharge pipe, and the overflow port is connected with the mother liquid tank through an overflow pipe;

the overflow port is arranged by inclining upwards with the fixed end of the thickener, the oil discharge port is horizontally arranged by the fixed end of the thickener, and the highest point of the upward inclination of the overflow port and the lowest point of the horizontal arrangement of the oil discharge port are positioned on the same horizontal plane.

2. The automatic oil drainage device of claim 1, wherein the top of the overflow port is arranged as a circular arc corner connected with the overflow pipe.

3. The automatic oil drainage device of claim 1, wherein the angle between the overflow port and the side wall of the thickener is 30-85 °.

4. The automatic oil drainage device of claim 3, wherein the angle between the overflow port and the side wall of the thickener is 80 °.

5. The automatic oil drainage device of the MVR evaporation system of saline water with high COD in claim 1, wherein the bottom end of the thickener is connected with a centrifuge through a pipeline.

6. The automatic oil drainage device of the MVR evaporation system for saline water with high COD according to claim 5, wherein a liquid outlet of the centrifuge after solid-liquid separation is communicated with the mother liquor tank, and the mother liquor in the mother liquor tank is refluxed and pumped into the heater through a reflux pump.