CN208327470U - A kind of grease decker - Google Patents

Abstract

The utility model relates to the field of chemical equipment, and provides an oil-water stratification device, comprising: an oil-water inlet pipe, a communication pipe, an oil-water mixture storage tank and a П-shaped pipe unit; the oil-water inlet pipe is arranged on the top of the oil-water mixture storage tank, and the The side wall of the oil-water mixture storage tank is provided with a plurality of oil discharge ports of different heights; the water outlet at the bottom of the oil-water mixture storage tank is connected with the П-shaped pipe unit; the drainage pipe of the П-shaped pipe unit is connected with the external sewage outlet or water collection equipment connection; the П-shaped pipe unit includes a main П-shaped pipe and a plurality of branch П-shaped pipes in parallel in the vertical direction, the main П-shaped pipe is above the branched П-shaped pipe, and the heights of the multiple branched П-shaped pipes are different; The main П-shaped pipe is connected with the top of the oil-water mixture storage tank through a communication pipe, and the communication pipe is provided with a first valve; the horizontal pipeline of the branch П-shaped pipe is provided with a second valve. The utility model has the advantages of simple structure, reliable principle, low energy consumption and good oil-water separation effect.

Description

An oil-water layering device

technical field

The utility model relates to the field of chemical equipment, in particular to an oil-water layering device.

Background technique

In petroleum, chemical, pharmaceutical, environmental protection, machinery and catering industries, it is often necessary to separate oil-water mixtures. Especially in recent years, with the rapid development of food processing and catering enterprises, most of the oily sewage without any treatment is directly discharged to the The municipal pipe network causes environmental pollution, and at the same time, it is very easy to foul and block the municipal drainage pipe network, which has a serious impact on people's production and life.

The existing oil-water layering equipment has complex structure, high energy consumption and low oil-water separation efficiency.

Utility model content

The utility model mainly solves the technical problems of complex structure, high energy consumption and low separation efficiency of the prior art oil-water stratification equipment, and proposes an oil-water stratification device. A П-shaped pipe unit with a certain height is set beside the oil-water mixture storage tank of the vertical cylinder, and the oil-water layer interface can be obtained by adjusting the switch of the valve in the П-shaped pipe unit. The utility model has the advantages of simple structure, reliable principle, low energy consumption and good oil-water separation effect.

The utility model provides an oil-water stratification device, comprising: an oil-water inlet pipe (1), a communication pipe (2), an oil-water mixture storage tank (4) and a П-shaped pipe unit;

The oil-water inlet pipe (1) is arranged on the top of the oil-water mixture storage tank (4), and the side wall of the oil-water mixture storage tank (4) is provided with a plurality of oil discharge ports (9) of different heights; the oil-water mixture storage tank (4) 4) The drainage port at the bottom is connected with the П-shaped pipe unit; the drainage pipe of the П-shaped pipe unit is connected with the external sewage outlet or water collection equipment;

The П-shaped pipe unit comprises a main П-shaped pipe (3) and a plurality of branch П-shaped pipes (5) in parallel in the vertical direction, and the main П-shaped pipe (3) is above the branched П-shaped pipe (5). , a plurality of branch П-shaped pipes (5) have different heights; the main П-shaped pipe (3) is connected with the top of the oil-water mixture storage tank (4) through the communication pipe (2), and the communication pipe (2) is provided with a first valve (6); a second valve (7) is arranged on the horizontal pipeline of the branch П-shaped pipe (5).

Preferably, a third valve (8) is arranged between the drain pipe of the П-shaped pipe unit and the external sewage outlet or water collection device.

The utility model utilizes the principle of fluid mechanics to provide an oil-water layering device, which can determine the position of the oil-water layer interface according to the set П-shaped pipeline height, and then determine the position of the oil discharge outlet pipe; The position of the port, and then determine the height of the П-shaped pipeline to meet the needs of the project. The utility model has the advantages of simple structure, reliable principle, low energy consumption and good oil-water separation effect, and can be used for separating oil-water mixtures in industries such as petroleum, chemical industry, pharmacy, environmental protection, machinery and catering.

Description of drawings

FIG. 1 is a schematic structural diagram of an oil-water stratification device provided by the present invention.

Reference numerals: 1. Oil-water inlet pipe; 2. Connecting pipe; 3. Main П-shaped pipe; 4. Oil-water mixture storage tank; 5. Branch П-shaped pipe; 6. First valve; 7. Second valve; 8. The third valve; 9. Oil outlet.

Detailed ways

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clearly, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the accompanying drawings only show the part but not the whole content related to the present invention.

FIG. 1 is a schematic structural diagram of an oil-water stratification device provided by the present invention. As shown in FIG. 1 , the oil-water layering device provided by the embodiment of the present invention includes: an oil-water inlet pipe 1 , a communication pipe 2 , an oil-water mixture storage tank 4 and a П-shaped pipe unit.

The oil-water inlet pipe 1 is arranged on the top of the oil-water mixture storage tank 4, and the side walls of the oil-water mixture storage tank 4 are provided with a plurality of oil discharge ports 9 of different heights; Unit connection; the drain pipe of the П-shaped pipe unit is connected to the external sewage outlet or water collection equipment, and a third valve 8 is provided between the drain pipe of the П-shaped pipe unit and the external sewage outlet or water collection equipment.

The П-shaped pipe unit comprises a main П-shaped pipe 3 and a plurality of branch П-shaped pipes 5 in parallel in the vertical direction, the main П-shaped pipe 3 is above the branched П-shaped pipe 5, and the plurality of branched П-shaped pipes 5 The heights are different; the main П-shaped pipe 3 is connected with the top of the oil-water mixture storage tank 4 through the communication pipe 2, and the first valve 6 is provided on the communication pipe 2; the second valve is provided on the horizontal pipeline of the branch П-shaped pipe 5 7.

In addition, a liquid level gauge is also provided in the oil-water mixture storage tank 4 to measure the liquid level of the oil-water mixture in the oil-water mixture storage tank 4 .

Under the condition that the oil-water mixture treatment flow is constant, the utility model provides a plurality of oil discharge ports 9 with different heights on the side wall of the oil-water mixture storage tank 4, and the oil discharge port 9 can be selected according to the determined height of the oil-water layer interface.

The working principle of the oil-water stratification device of the present invention: the oil-water mixture enters the oil-water mixture storage tank 4 from the oil-water inlet pipe 1, and due to the steady flow, the liquid level in the oil-water mixture storage tank 4 remains unchanged during the flow process, and its flow law Obey the basic equations of fluid dynamics. In addition, due to process requirements, the flow rate and flow rate of the oil-water mixture are small (usually the flow rate u<0.5m/s), and the flow resistance loss of water in the pipeline can be ignored. A П-shaped pipe unit is arranged beside the oil-water mixture storage tank 4, and this embodiment is described by taking a main П-shaped pipe 3 and a branch П-shaped pipe 5 as an example. The height of the main П-shaped pipe 3 is h ₂ , and the height of the branch П-shaped pipe 5 is When closing the second valve 7 and opening the first valve 6 and the third valve 8, water flows through the main П-shaped pipe 3, and at this time, the oil-water layer interface in the oil-water mixture storage tank 4 is the section one, and the communication pipe 2 and the The intersection of the main П-shaped pipe 3 is the second section, and the Bernoulli equation is listed:

Wherein, u ₁ ≈0, u ₂ =u, p ₁ =p _a + _ρoilg (Hh ₁ ), p ₂ =p _a

Since u is small, so can be ignored; in general, the ratio of the density of oil to water is approximately 0.75, and the above formula can be obtained as h ₁ =4h ₂ -3H, where H represents the height of the oil interface in the oil-water mixture storage tank 4, which can be measured by a liquid level gauge , a fixed value under steady flow; h1 represents the height of the oil-water layer interface in the oil-water mixture storage tank 4 , and h2 represents the height of the main П-shaped pipe 3 . It can be seen that the height of the oil interface in the H oil-water mixture storage tank 4 can be obtained by measuring, if the height h of the main П-shaped pipe ₃ is determined, the height h of the water interface (oil-water layer interface) in the oil-water mixture storage tank ₄ can be determined, The height distribution of the oil in the oil-water mixture storage tank 4 can be determined, and then the position of the oil discharge nozzle can also be determined, and vice versa.

In the same way, when the first valve 6, the second valve 7 and the third valve 8 are all opened, the water flows through the branch П-shaped pipe 5 at a low position, and at this moment, the oil-water layer interface in the oil-water mixture storage tank 4 is Section 1, the intersection of connecting pipe 2 and second valve 7 is section 2, and the Bernoulli equation can be obtained:

in, represents the height of the oil-water layer interface in the oil-water mixture storage tank 4 at this time, Indicates the height of the П-shaped pipe 5. because Therefore In this way, the following conclusions can be drawn: if the setting height of the П-shaped pipe is larger, the position of the oil-water layer interface in the oil-water mixture storage tank 4 is higher, and vice versa.

In the present embodiment, two oil discharge ports 9, ie, a high oil discharge port and a low oil discharge port, can be provided at appropriate positions on the upper and lower parts of the oil-water mixture storage tank 4, respectively. The high oil discharge port corresponds to the main П-shaped pipe 3, and the low oil discharge port corresponds to the branch П-shaped pipe 5. In general, the position of the center of the oil discharge port 9 in the height direction of the oil-water mixture storage tank 4 is 50 mm away from the oil-water layer interface. In this way, the height of the pipeline in the П-shaped pipe unit can be adjusted by the switch of the valve, so as to control the position of the oil discharge port 9.

The use process of this utility model:

1. Determine the height of the main П-shaped pipe 3 according to the height direction position of the high oil discharge port of the storage tank. When working, close the second valve 7 and open the first valve 6 and the second valve 8, the water flows through the main П-shaped pipe 3, and the grease is discharged from the high oil discharge port.

2. Determine the height of the П-shaped pipe 5 according to the height direction position of the low oil discharge port of the storage tank. When working, when the first valve 6, the second valve 7 and the second valve 8 are opened, the water flows through the branch П-shaped pipe 5, and the grease is discharged from the low oil discharge port.

To sum up, the present utility model can set the position of the oil-water layer interface (that is, the position of the oil outlet) according to the oil-water mixture storage tank structure, and determine the П-shaped pipeline height through calculation; The height of the shaped pipeline is used to set the position of the oil-water layer interface (that is, the position of the oil discharge outlet pipe). In practice, branch pipes 5 with multiple heights can be set according to the actual situation, so as to obtain the positions of multiple oil discharge ports 9 (ie, oil-water layer interface), which provides convenient conditions for operation.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that : It modifies the technical solutions recorded in the foregoing embodiments, or performs equivalent replacements to some or all of the technical features thereof, and does not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the various embodiments of the present invention.

Claims (2)

1. an oil-water stratification device, is characterized in that, comprises: oil-water inlet pipe (1), communication pipe (2), oil-water mixture storage tank (4) and П-shaped pipe unit; The oil-water inlet pipe (1) is arranged on the top of the oil-water mixture storage tank (4), and the side wall of the oil-water mixture storage tank (4) is provided with a plurality of oil discharge ports (9) of different heights; the oil-water mixture storage tank (4) 4) The drainage port at the bottom is connected with the П-shaped pipe unit; the drainage pipe of the П-shaped pipe unit is connected with the external sewage outlet or water collection equipment; The П-shaped pipe unit comprises a main П-shaped pipe (3) and a plurality of branch П-shaped pipes (5) in parallel in the vertical direction, and the main П-shaped pipe (3) is above the branched П-shaped pipe (5). , a plurality of branch П-shaped pipes (5) have different heights; the main П-shaped pipe (3) is connected with the top of the oil-water mixture storage tank (4) through the communication pipe (2), and the communication pipe (2) is provided with a first valve (6); a second valve (7) is arranged on the horizontal pipeline of the branch П-shaped pipe (5). 2. The oil-water stratification device according to claim 1, characterized in that, a third valve (8) is provided between the drain pipe of the П-shaped pipe unit and the external sewage outlet or water collection equipment.