CN108126371A - A kind of pipe type oil water separating system for motor vehicle waste oil collecting - Google Patents

Abstract

The invention belongs to the technical field of waste oil recovery, and relates to a pipeline-type oil-water separation system for collecting waste oil from motor vehicles, which includes a first swirl tube, a second swirl tube and a second swirl tube arranged in steps from left to right Three swirl tubes, the upper part of the first swirl tube is provided with an oil inlet, the top of the first swirl tube is equipped with an exhaust pipe with a control valve, and the bottom of the first swirl tube is equipped with a three-way valve and a control valve. The sand discharge pipe of the valve, the first drainage pipe with a control valve is connected between the three-way valve of the first swirl pipe and the second swirl pipe, and the first oil outlet pipe with a control valve is installed on the top of the second swirl pipe A second drainage pipe with a three-way valve is connected between the bottom end of the second swirl pipe and the third swirl pipe, and a third oil outlet pipe with a control valve is installed on the top of the third swirl pipe. A water outlet pipe with a control valve is installed at the bottom of the flow pipe, which solves the problems of complex structure, high cost and low oil-water separation efficiency of the oil-water separation device in the prior art.

Description

A pipeline type oil-water separation system for motor vehicle waste oil collection

technical field

The invention belongs to the technical field of waste oil recovery, and relates to a pipeline type oil-water separation system for collecting waste oil from motor vehicles.

Background technique

With my country's reform and opening up and the rapid development of the economy, the number of automobiles is increasing day by day. With the rapid increase of my country's automobile consumption demand, the amount of scrapped cars will also continue to expand. Will exceed 5 million vehicles/year. At present, my country has entered the peak period of automobile scrapping, and the domestic disposal of scrapped cars develops slowly, resulting in a large number of scrapped cars that are in a state of waiting for disposal and cannot be disposed of in a timely and effective manner.

Scrapped motor vehicles contain waste engine oil. If the used waste engine oil is not handled properly, it will cause serious harm to the environment. Therefore, it is necessary to recycle the waste engine oil. Waste engine oil not only contains mechanical impurities due to equipment wear, but also is mixed with wastewater. Therefore, before recycling waste engine oil, it is necessary to perform preliminary separation of mechanical impurities and wastewater on waste engine oil. Oil-water separation is mainly based on the density difference or chemical properties of water and oil, using the principle of gravity sedimentation or other physical and chemical reactions to remove impurities or complete the separation of oil and water. Commonly used oil-water separation methods include heating oil-water separation method, ultrafiltration membrane separation method, and adsorption purification method. The existing oil-water separation device has complex structure, high cost, low oil-water separation efficiency, and troublesome operation. Therefore, an efficient oil-water separation system is proposed to solve the above problems.

Contents of the invention

In view of this, the present invention provides a pipeline-type oil-water separation system for motor vehicle waste oil collection in order to solve the problems of complex structure, high cost and low oil-water separation efficiency in the prior art.

In order to achieve the above object, the present invention provides a pipeline type oil-water separation system for motor vehicle waste oil collection, which includes a first swirl tube, a second swirl tube and a third swirl tube arranged in a stepped form from left to right. The upper part of the first swirl pipe is provided with an oil inlet, the top of the first swirl pipe is equipped with an exhaust pipe with a control valve, and the bottom of the first swirl pipe is equipped with a three-way valve and a control valve. Sand discharge pipe, the first drainage pipe with control valve is connected between the three-way valve of the first swirl pipe and the second swirl pipe, and the first oil outlet pipe with control valve is installed on the top of the second swirl pipe. A second drainage pipe with several three-way valves is connected between the bottom end of the second swirl pipe and the third swirl pipe, and a second oil outlet pipe with a three-way valve is installed above the second drainage pipe. The second drainage pipe and The three-way valves on the second oil outlet pipe correspond one-to-one and are connected by pipelines. The third oil outlet pipe with control valve is installed on the top of the third swirl pipe, and the outlet pipe with control valve is installed at the bottom of the third swirl pipe. water pipe.

Further, it also includes an air intake pipe installed under the second draft pipe, the air intake pipe is connected to the second draft pipe, and a blower is installed at the air intake end of the air intake pipe.

Further, the first swirl tube, the second swirl tube and the third swirl tube have an inverted tapered structure.

Further, a sand collection bucket is installed below the sand discharge pipe, a water collection bucket is installed below the water outlet pipe, the first oil outlet pipe, the second oil outlet pipe and the third oil outlet pipe are collected in one oil outlet pipe and an oil collection barrel is installed under the oil outlet pipe.

The beneficial effects of the present invention are:

The present invention is used for the pipeline type oil-water separation system of motor vehicle waste oil collection, and the collected waste oil is added in the first swirl tube, and the solid waste (such as sludge) in the waste oil is removed by the centrifugal action of the first swirl tube. sand) to the bottom of the first cyclone pipe, open the three-way valve and the control valve on the sand discharge pipe, so that the sand discharge pipe communicates with the first cyclone pipe, and collect solid waste in the sand collection bucket. When the sediment at the bottom of the first swirl pipe is basically discharged, close the control valve on the sand discharge pipe, adjust the three-way valve and the control valve on the first drainage pipe, so that the first swirl pipe communicates with the second swirl pipe , the oil and water in the waste oil all enter the low-temperature cyclone tube for centrifugation, and the oil with higher purity in the upper part of the second cyclone tube is discharged from the first oil outlet tube for collection. Open the three-way valve on the second drainage pipe and the three-way valve on the second oil outlet pipe, and at the same time continuously ventilate the second drainage pipe through the blower, so that the water and oil-water mixture flowing out from the bottom of the second swirl pipe will flow along the first The second drainage pipe is continuously separated during the flow to the third swirl pipe, and the control valve on the second oil outlet pipe is opened to collect the continuously overflowing oil. The oil and water continuously entering the third cyclone tube are centrifuged again, the oil in the upper part of the third cyclone tube is discharged from the third oil outlet pipe for collection, and the water in the lower part of the third cyclone tube is discharged from the water outlet pipe for collection. The pipeline-type oil-water separation system for the entire waste oil collection can effectively separate the oil and water in the waste oil through the use of multi-stage swirl tubes for grading treatment. At the same time, the oil-water separation system is small in size and occupies a small area. It has the advantages of economy, energy saving, simplicity and safety, and greatly improves the efficiency of waste oil pretreatment.

Description of drawings

In order to make the purpose, technical scheme and beneficial effect of the present invention clearer, the present invention provides the following drawings for illustration:

Fig. 1 is a schematic structural diagram of the pipeline type oil-water separation system for collecting motor vehicle waste oil according to the present invention.

Detailed ways

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The reference signs in the accompanying drawings of the specification include:

Oil inlet 1, first swirl pipe 2, second swirl pipe 3, three-way valve 4, control valve 5, blower 6, first drainage pipe 7, exhaust pipe 8, first oil outlet pipe 9, second Oil outlet pipe 10, air inlet pipe 11, second drainage pipe 12, third swirl pipe 13, third oil outlet pipe 14, water outlet pipe 15.

The pipeline type oil-water separation system for motor vehicle waste oil collection as shown in Figure 1 includes the first swirl tube 2, the second swirl tube 3 and the third swirl tube arranged in a stepped manner from left to right 13. The first swirl tube 2, the second swirl tube 3 and the third swirl tube 13 have an inverted tapered structure. The upper part of the first swirl pipe 2 is provided with an oil inlet 1, the top of the first swirl pipe 2 is equipped with an exhaust pipe 8 with a control valve 5, and the bottom end of the first swirl pipe 2 is installed with a three-way valve 4 and a control valve 5 sand discharge pipe, and a sand collection bucket is installed under the sand discharge pipe. The first cyclone pipe 2 can preliminarily separate the solid waste and liquid waste in the waste oil, and the solid waste is discharged from the sand discharge pipe at the lower part of the first cyclone pipe 2 for collection.

The first drainage pipe 7 with control valve 5 is connected between the three-way valve 4 of the first swirl pipe 2 and the second swirl pipe 3, and the first oil outlet pipe with control valve 5 is installed on the top of the second swirl pipe 3 9. A second drainage tube 12 with three three-way valves 4 is connected between the bottom end of the second swirl tube 3 and the third swirl tube 13, and a third drainage tube with a three-way valve 4 is installed above the second drainage tube 12. Two oil outlet pipes 10, the second drainage pipe 12 and the three-way valve 4 on the second oil outlet pipe 10 correspond one-to-one and are connected by pipelines. The air inlet pipe 11 is installed under the second drainage pipe 12. The two drainage pipes 12 are pipe-connected, and the blower 6 is installed at the air inlet end of the air inlet pipe 11. The second swirl tube 3 can centrifuge the waste oil after the primary separation again, the oil in the upper part of the second swirl tube 3 is collected from the first oil outlet pipe 9, and the water and the water-oil mixture in the lower part of the second swirl tube 3 In the process of flowing through the second draft pipe 12 to the third swirl pipe 13, the blower 6 continuously blows air into the second draft pipe 12, which helps the separation of water and oil in the waste oil, and the oil that is constantly blown out from the first Two oil outlet pipes 10 are collected. The oily sewage at the lower part of the second swirl pipe 3 enters the third swirl pipe 13 for further separation.

A third oil outlet pipe 14 with a control valve 5 is installed on the top of the third swirl pipe 13 , and a water outlet pipe 15 with a control valve 5 is installed at the bottom of the third swirl pipe 13 . Through the continuous centrifugation of the third swirl pipe 13, the oil separated at the top of the third swirl pipe 13 is collected from the third oil outlet pipe 14, and the moisture separated at the bottom of the third swirl pipe 13 is collected from the water outlet pipe 15, Collected in the water collecting bucket below the outlet pipe 15. The first oil outlet pipe 9, the second oil outlet pipe 10 and the third oil outlet pipe 14 are collected in one oil outlet pipe and an oil collecting barrel is installed below the oil outlet pipe. The oil that is continuously collected from the first oil outlet pipe 9, the second oil outlet pipe 10 and the third oil outlet pipe 14 is collected in the oil collecting barrel.

Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that it can be described in terms of form and Various changes may be made in the details without departing from the scope of the invention defined by the claims.

Claims (4)

1. A pipe-type oil-water separation system for motor vehicle waste oil collection, characterized in that it comprises a stepped first swirl tube, a second swirl tube and a third swirl tube that are arranged sequentially from left to right , the upper part of the first swirl pipe is provided with an oil inlet, the top of the first swirl pipe is equipped with an exhaust pipe with a control valve, and the bottom of the first swirl pipe is equipped with a sand discharge pipe with a three-way valve and a control valve. A first drainage pipe with a control valve is connected between the three-way valve of the first swirl pipe and the second swirl pipe, and the first oil outlet pipe with a control valve is installed on the top of the second swirl pipe. A second drainage pipe with several three-way valves is connected between the bottom end of the flow pipe and the third swirl pipe, and a second oil outlet pipe with a three-way valve is installed above the second drainage pipe. The second drainage pipe and the second The three-way valves on the oil outlet pipe correspond one-to-one and are connected by pipelines. A third oil outlet pipe with a control valve is installed on the top of the third swirl pipe, and a water outlet pipe with a control valve is installed at the bottom of the third swirl pipe. 2. The pipeline type oil-water separation system for motor vehicle waste oil collection as claimed in claim 1, further comprising an air inlet pipe installed below the second drainage pipe, and the air inlet pipe is connected with the second drainage pipe , a blower is installed at the air inlet end of the air inlet pipe. 3. The pipeline type oil-water separation system for motor vehicle waste oil collection as claimed in claim 2, characterized in that, the first swirl tube, the second swirl tube and the third swirl tube are in an inverted tapered structure . 4. The pipeline type oil-water separation system for motor vehicle waste oil collection as claimed in claim 3, characterized in that, a sand collection bucket is installed under the sand discharge pipe, a water collection bucket is installed under the water outlet pipe, and the The first oil outlet pipe, the second oil outlet pipe and the third oil outlet pipe are collected in one oil outlet pipe and an oil collecting barrel is installed below the oil outlet pipe.