Spiral multi-channel assembly, oil-water separator and implementation method thereof

Abstract

The present invention proposes a spiral multi-channel component and an oil-water separator with a spiral multi-channel and an implementation method thereof. A spiral multi-channel component is installed around the vertical pipe of the oil-water separator, an oil separator is installed above the spiral multi-channel component, a water collecting tank and an oil collecting box are installed above the oil separator in sequence, the bottom of the water collecting tank is connected to a drain pipe, the bottom of the oil collecting box is connected to an oil drain pipe and an oil drain valve, and a plurality of spiral walls are longitudinally surrounded around the vertical pipe, and a spiral channel is formed between adjacent spiral walls. The problem that the flow velocity of the oil-water mixture in different flow sections in the oil-water separator is different, which affects the oil-water separation effect, is solved. In the present invention, after the oil-water mixture enters the oil-water separator and flows through the spiral multi-channel component, the water flow velocity in each channel tends to be uniform, and centrifugal force is generated under the action of the spiral wall. The ramp plates between the channels can shorten the floating distance of the oil droplets to the boundary, which is conducive to the aggregation of the oil droplets to accelerate the oil-water separation.

Description

Technical Field

[0001] The invention relates to a spiral multi-channel component and an oil-water separator with the spiral multi-channel component and an implementation method thereof, belonging to the technical field of oil-water separation equipment. Background Art

[0002] The oil-water separators currently on the market mainly use physical methods, namely the specific gravity method, for their oil-water separation methods. After the oil-water mixed liquid wastewater enters the oil-water separation device, the flow velocities are different at different positions of the same flow section in the oil-water separation device, resulting in low oil-water separation effects in areas with high flow rates, while good oil-water separation effects in areas with low flow rates. Summary of the invention

[0003] In order to solve the problem mentioned in the above background technology that the flow velocities of the oil-water mixed liquid wastewater in different flow sections in the oil-water separator are different, which affects the oil-water separation effect, the present invention proposes an oil-water separator with a spiral multi-channel component and an implementation method thereof. The flow velocity of the oil-water mixed liquid in the spiral flow channel is made uniform through multiple spiral flow channels, thereby reducing the local flow rate that is too fast and causes the oil in the oil-water mixed liquid to not fully float up. The spiral structure of the flow channel wall not only generates a certain centrifugal force that is beneficial to the aggregation of oil droplets, but also shortens the distance from the oil droplets to float to the boundary due to the effect of the slope plate between the flow channels, which is beneficial to the separation of oil and water.

[0004] The present invention provides a spiral multi-channel component, comprising a spiral channel and a plurality of spiral walls. A plurality of spiral walls are longitudinally surrounded by a vertical pipe below a water inlet, and a spiral channel is formed between adjacent spiral walls.

[0005] Preferably, the spiral multi-channel assembly also includes a ramp plate, which is located in the spiral channel, arranged at an angle, and fixedly connected to the adjacent spiral wall to shorten the distance for the oil droplets to float to the boundary, which is beneficial to the aggregation of the oil droplets and accelerates the separation of oil and water, while ensuring that the shape of the spiral channel is stable and does not produce flow differences in each channel.

[0006] Preferably, no less than 4 spiral flow channels are evenly arranged between the outer wall of the spiral multi-flow channel component and the two concentric circles of the vertical pipe.

[0007] Preferably, the plurality of spiral flow channels have equal width, and the width is not less than 10 mm.

[0008] An oil-water separator equipped with a spiral multi-flow channel component comprises an oil-water separator cover, a water inlet, a liquid level regulating valve, an oil-water separator housing, an overflow port, an oil collecting box, a water collecting trough, an oil separator, a drain pipe, a vertical pipe, an oil drain pipe and an oil drain valve. The top of the oil-water separator housing is covered with an oil-water separator cover, the top of the oil-water separator housing is provided with an overflow port, a liquid level regulating valve is provided at the overflow port, the vertical pipe corresponds to the water inlet, a spiral multi-flow channel component is installed around the vertical pipe, the spiral multi-flow channel component is located inside the oil-water separator housing, an oil separator is installed around the spiral multi-flow channel component, a water collecting trough is installed on the outside of the oil separator, an oil collecting box is installed above the water collecting trough, a drain pipe is connected to the bottom of the water collecting trough, the top of the drain pipe is opposite to the overflow port of the liquid level regulating valve, the overflow port is connected to the liquid level regulating valve, the drain pipe is L-shaped, and its bottom extends out of the oil-water separator housing, and the bottom of the oil collecting box is connected to the oil drain pipe and the oil drain valve.

[0009] Preferably, the water inlet is located in the center of the oil-water separator cover, above the vertical pipe.

[0010] Preferably, the water inlet is located at the bottom of the oil-water separator housing, below the vertical pipe.

[0011] Preferably, an oil level observation window is provided on the oil-water separator casing.

[0012] Preferably, the upper edge of the water-passing side wall of the water collecting trough is horizontal to the liquid level, and the upper edge of the oil-passing side wall of the oil collecting box is horizontal to the oil level and higher than the upper edge of the water-passing side wall of the water collecting trough.

[0013] A method for implementing an oil-water separator equipped with a spiral multi-channel component specifically comprises the following steps:

[0014] 1) The oil-water mixture is connected to the vertical pipe through the water inlet on the oil-water separator cover. The oil-water mixture flows into each spiral flow channel from the vertical pipe, and passes through multiple ramps in multiple flow channels, so that the oil in the oil-water mixture floats to the liquid surface under the action of buoyancy and centrifugal force. The floating oil is blocked by the oil separator and focused to form a floating oil layer, while the water flows into the water collection tank through the gap between the bottom of the oil separator and the oil-water separator box, and is discharged through the drain pipe;

[0015] 2) Through the oil level observation window, the thickness of the floating oil layer in the oil-water separator can be observed. When the thickness of the floating oil layer reaches the set oil discharge level, close the liquid level regulating valve and open the oil discharge valve. As the oil-water mixture continues to flow into the oil-water separator, the liquid level in the oil-water separator continues to rise, and the oil layer floating on the liquid surface also floats up. When the oil layer reaches the height of the oil collecting box, the floating oil flows into the oil collecting box and is discharged to the collection container through the oil discharge valve. While the floating oil is discharged, the floating oil layer on the liquid surface gradually becomes thinner, and the water level continues to rise. When it reaches the height of the overflow port on the liquid level regulating valve, the water is discharged through the overflow port, so that the water surface cannot reach the height of the oil collecting box and the water cannot be discharged through the oil discharge valve. When there is no floating oil discharged from the oil discharge valve, open the liquid level regulating valve and close the oil discharge valve at the same time, and the water above the drain pipe inlet is discharged, and the liquid level in the oil-water separator falls back to the normal working level.

[0016] The working principle of the present invention is that a component with a spiral baffle allows the oil-water mixture to flow into the spiral flow channels between the baffles through multiple flow channel baffles, so that the water flow velocity in each spiral flow channel tends to be uniform, reducing the local flow velocity that is too fast and causes the oil in the oil-water mixture to not fully float up. The spiral of the flow channel baffle not only generates a certain centrifugal force that is beneficial to the aggregation of oil droplets, but also facilitates the separation of oil and water.

[0017] The beneficial effects of the oil-water separator with a spiral multi-channel component and the implementation method thereof described in the present invention are as follows: after the oil-water mixed liquid wastewater enters the oil-water separator and flows through the spiral multi-channel component, the water flow velocity in each channel tends to be uniform, and centrifugal force is generated under the action of the spiral wall. The ramp plates between the flow channels can shorten the floating distance of the oil droplets to reach the boundary, which is beneficial to the aggregation of the oil droplets to accelerate the separation of oil and water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In the attached picture:

[0020] Figure 1 This is a structural schematic diagram of an oil-water separator with a spiral multi-channel component according to the present invention;

[0021] Figure 2 This is a top view of the oil-water separator after the cover plate is removed;

[0022] Figure 3 For attachment Figure 2 AA section view;

[0023] Figure 4 A top view of the spiral partition of the present invention;

[0024] Figure 5 For attachment Figure 4 BB cross-section diagram;

[0025] Figure 6 It is a cross-sectional view of a second specific embodiment of the present invention;

[0026] Figure 7 It is a cross-sectional view of a third specific embodiment of the present invention;

[0027] Figure 8 A top view of a third specific embodiment of the present invention;

[0028] Among them, 1-oil-water separator cover, 2-water inlet, 3-liquid level regulating valve, 5-oil-water separator box, 6-overflow port, 7-oil collecting box, 8-water collecting tank, 9-oil separator, 10-spiral multi-channel assembly, 11-drain pipe, 12-spiral wall, 13-vertical pipe, 14-oil drain pipe, 15-oil drain valve, 16-oil level observation window, 17-base, 1001-slope plate, 1002-spiral flow channel. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings:

[0030] Specific implementation method 1: See Figure 1-5 The spiral multi-channel assembly described in this embodiment includes a spiral channel 1002 and a plurality of spiral walls 12 . The vertical pipe 13 below the water inlet 2 is longitudinally surrounded by the plurality of spiral walls 12 . The spiral channel 1002 is formed between adjacent spiral walls 12 .

[0031] The spiral multi-channel component 10 also includes a ramp plate 1001, which is located in the spiral channel 1002, is tilted, and is fixedly connected to the adjacent spiral wall 12 to shorten the distance for oil droplets to float to the boundary, which is beneficial to the aggregation of oil droplets and accelerates the separation of oil and water. At the same time, it ensures that the shape of the spiral channel 1002 is stable and does not produce flow differences in each channel.

[0032] No less than four spiral flow channels 1002 are evenly arranged between the outer wall of the spiral multi-flow channel component and the two concentric circles of the vertical pipe 13.

[0033] The plurality of spiral flow channels 1002 have equal width, and the width is not less than 10 mm.

[0034] The oil-water separator equipped with a spiral multi-channel component comprises an oil-water separator cover 1, a water inlet 2, a liquid level regulating valve 3, an oil-water separator housing 5, an overflow port 6, an oil collecting box 7, a water collecting tank 8, an oil separator 9, a spiral multi-channel component 10, a drain pipe 11, a vertical pipe 13, an oil drain pipe 14 and an oil drain valve 15. The top of the oil-water separator housing 5 is provided with a liquid level regulating valve 3, the vertical pipe 13 corresponds to the water inlet 2, and the spiral multi-channel component 10 is installed around the vertical pipe 13. The spiral multi-channel component 10 is located inside the oil-water separator housing 5, and is surrounded by an oil separator 9. A water collecting tank 8 is installed on the outside of the oil separator 9, and an oil collecting box 7 is installed above the water collecting tank 8. The bottom of the water collecting tank 8 is connected to a drain pipe 11, and the top of the drain pipe 11 is opposite to the overflow port 6 of the liquid level regulating valve 3. The overflow port 6 is connected to the liquid level regulating valve 3. The drain pipe 11 is L-shaped and extends out of the oil-water separator housing 5 below. The bottom of the oil collecting box 7 is connected to an oil drain pipe 14 and an oil drain valve 15.

[0035] The water inlet 2 is located at the center of the oil-water separator cover 1 and above the vertical pipe 13 .

[0036] The oil-water separator housing 5 is provided with an oil level observation window 16 .

[0037] The upper edge of the water passing side wall of the water collecting tank 8 is horizontal to the liquid surface, and the upper edge of the oil passing side wall of the oil collecting box 7 is horizontal to the oil surface and higher than the upper edge of the water passing side wall of the water collecting tank 8 .

[0038] The oil-water mixture enters from the water inlet 2, and the water inlet 2 is inserted into the vertical pipe 13 through the oil-water separator cover 1. The upper edge of the water-passing side wall of the water collecting tank 8 is horizontal to the liquid level, the bottom of the water collecting tank 8 is connected to the drain pipe 11, and is equipped with a liquid level regulating valve 3. The upper edge of the oil-passing side wall of the oil collecting box 7 is horizontal to the oil level and higher than the upper edge of the water-passing side wall of the water collecting tank 8, and the bottom of the oil collecting box 7 is connected to the oil drain pipe 14 and the oil drain valve 15.

[0039] The liquid level regulating valve 3 is similar to the light switch on the wall. When it is turned on, water can be added and oil can be discharged. When it is closed, oil and water can be separated normally. The liquid level regulating valve 3 controls the up and down movement of the overflow port 6. When oil needs to be discharged, the liquid level regulating valve 3 is opened, and the overflow port 6 falls onto the drain pipe 11, raising the water outlet height in the oil separator 9. With the injection of waste water, the liquid level rises, causing the oil layer floating on the water to rise to the height of the oil collecting box 7.

[0040] The oil-water mixture flows from the vertical pipe 13 into the spiral multi-channel assembly 10, specifically into each spiral channel 1002, so that the oil in the oil-water mixture floats to the liquid surface through buoyancy and centrifugal force and is blocked by the oil separator 9, while the water flows into the sump 8 and is discharged from the drain pipe 11. The present invention makes the flow rate tend to be uniform through multiple channels, reduces the local flow rate that is too fast and causes the oil in the oil-water mixture to not fully float up, and the spiral of the channel not only generates a certain centrifugal force that is beneficial to the aggregation of oil droplets, but the slope plate 1001 between each channel 1002 can shorten the floating distance of the oil droplets to reach the boundary, which is beneficial to the separation of oil and water.

[0041] The present invention places a spiral multi-channel assembly 10 in the oil-water separator, which is composed of no less than 4 spiral channels 1002 evenly arranged between two concentric circles of an outer cylinder and an inflow vertical pipe 13, and the channels are of equal width, not less than 10 mm. A ramp plate 1001 is added inside each spiral channel 1002 to ensure the overall strength of the spiral multi-channel assembly 10, and the flow cross-sections of the vertical pipe 13 connected to each spiral channel 1002 are uniformly equal, and the total area is not less than the cross-sectional area of ​​the vertical pipe 13.

[0042] The present invention provides an implementation method of an oil-water separator with a spiral multi-channel component. Through the core technology of a spiral multi-channel component 10, the oil-water mixture is connected to the vertical pipe 13 of the spiral multi-channel component 10 through the water inlet 2 on the oil-water separator cover 1. The oil-water mixture flows into each spiral flow channel 1002 from the vertical pipe 13, and passes through multiple ramps 1001 in multiple flow channels 1002, so that the oil in the oil-water mixture floats to the liquid surface under the action of buoyancy and centrifugal force. The floating oil is blocked by the oil separator 9 and focused to form a floating oil layer, while the water flows into the water collecting tank 8 through the gap between the bottom of the oil separator 9 and the oil-water separator box 5, and is discharged through the drain pipe 11. The thickness of the floating oil layer in the oil-water separator can be observed through the oil level observation window 16. When the thickness of the floating oil layer is When the set oil discharge level is reached, the liquid level regulating valve 3 and the oil discharge valve 15 are closed. As the oil-water mixture continues to flow into the oil-water separator, the liquid level in the oil-water separator continues to rise, and the oil layer floating on the liquid surface also floats up. When the oil layer reaches the height of the oil collecting box 7, the floating oil flows into the oil collecting box 7 and is discharged to the collection container through the oil discharge valve 15. While the floating oil is being discharged, the floating oil layer on the liquid surface gradually becomes thinner, and the water level continues to rise. When the height of the overflow port 6 on the liquid level regulating valve 3 is reached, the water is discharged through the overflow port 6, so that the water surface cannot reach the height of the oil collecting box 7, and the water cannot be discharged through the oil discharge valve 15. When there is no floating oil discharged from the oil discharge valve 15, the liquid level regulating valve 3 is opened and the oil discharge valve 15 is closed at the same time, and the water above the inlet of the drain pipe 11 is discharged, and the liquid level in the oil-water separator falls back to the normal working level.

[0043] Specific implementation method 2: See Figure 6The present embodiment is described below. In the oil-water separator with a spiral multi-channel assembly described in the present embodiment, the water inlet 2 is located at the center of the oil-water separator cover 1 and above the vertical pipe 13 .

[0044] Attached Figure 6 This is another embodiment of the present invention, the difference is that the number of spiral walls 12 in the spiral multi-channel assembly 10 is increased, the length of each spiral channel 1002 is increased, and the number of ramps 1001 is also increased. Other structures are the same as those of the first embodiment.

[0045] Specific implementation method three: see Figure 7-8 The oil-water separator with a spiral multi-channel assembly described in this embodiment has a water inlet 2 located at the bottom of the oil-water separator housing 5 and below the vertical pipe 13, and other structures are the same as those of the first embodiment.

[0046] Attached Figure 7 , Attachment Figure 8 It is a third embodiment of the present invention, and Figure 6 The difference is that water is introduced from below.

[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "matching" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a nested connection, a threaded fastening connection, or a compression connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. It can also be a reasonable combination of the features recorded in the above embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spiral multi-channel assembly, characterized in that: It comprises a spiral flow channel (1002) and a plurality of spiral walls (12), wherein a vertical pipe (13) below the water inlet (2) is longitudinally surrounded by the plurality of spiral walls (12), and a spiral flow channel (1002) is formed between adjacent spiral walls (12); The spiral multi-channel component also includes a ramp plate (1001), which is located in the spiral channel (1002), is inclined, and is fixedly connected to the adjacent spiral wall (12) to shorten the distance for the oil droplets to float to the boundary, which is beneficial to the aggregation of the oil droplets and accelerates the separation of oil and water. At the same time, the shape of the spiral channel (1002) is ensured to be stable and no flow difference occurs in each channel. The oil-water mixture flows into each spiral channel (1002) respectively, and passes through the multiple ramp plates (1001) in the multiple channels (1002), so that the oil in the oil-water mixture floats to the liquid surface under the action of buoyancy and centrifugal force. The multiple spiral channels (1002) have the same width.

2. The spiral multi-channel assembly according to claim 1, characterized in that: No less than four spiral flow channels (1002) are evenly arranged between the outer wall of the spiral multi-flow channel component and two concentric circles of the vertical pipe (13).

3. The spiral multi-channel assembly according to claim 1, characterized in that: The width of each spiral flow channel (1002) is not less than 10 mm.

4. An oil-water separator equipped with the spiral multi-channel assembly according to any one of claims 1 to 3, characterized in that: The oil-water separator comprises an oil-water separator cover (1), a water inlet (2), a liquid level regulating valve (3), an oil-water separator housing (5), an overflow port (6), an oil collecting box (7), a water collecting tank (8), an oil separator (9), a drain pipe (11), a vertical pipe (13), an oil drain pipe (14) and an oil drain valve (15). The top of the oil-water separator housing (5) is covered with an oil-water separator cover (1), the top of the oil-water separator housing (5) is provided with a liquid level regulating valve (3), the vertical pipe (13) corresponds to the water inlet (2), a spiral multi-channel component (10) is installed around the vertical pipe (13), the spiral multi-channel component (10) is located inside the oil-water separator housing (5), and an oil separator plate (9) is installed around the spiral multi-channel component (10), and the outer side of the oil separator plate (9) A water collecting trough (8) is installed, an oil collecting box (7) is installed above the water collecting trough (8), the bottom of the water collecting trough (8) is connected to a drain pipe (11), the top of the drain pipe (11) is opposite to the overflow port (6) of the liquid level regulating valve (3), the overflow port (6) is connected to the liquid level regulating valve (3), the drain pipe (11) is L-shaped, and the bottom thereof extends out of the oil-water separator box (5), and the bottom of the oil collecting box (7) is connected to an oil drain pipe (14) and an oil drain valve (15).

5. The oil-water separator equipped with a spiral multi-channel assembly according to claim 4, characterized in that: The water inlet (2) is located at the center of the oil-water separator cover (1) and above the vertical pipe (13).

6. The oil-water separator equipped with a spiral multi-channel assembly according to claim 4, characterized in that: The water inlet (2) is located at the bottom of the oil-water separator housing (5), below the vertical pipe (13).

7. The oil-water separator equipped with a spiral multi-channel assembly according to claim 4, characterized in that: The oil-water separator housing (5) is provided with an oil level observation window (16).

8. The oil-water separator equipped with a spiral multi-channel assembly according to claim 4, characterized in that: The upper edge of the water-passing side wall of the water collecting trough (8) is horizontal to the liquid surface, and the upper edge of the oil-passing side wall of the oil collecting box (7) is horizontal to the oil surface and higher than the upper edge of the water-passing side wall of the water collecting trough (8).

9. A method for implementing an oil-water separator equipped with a spiral multi-channel assembly according to any one of claims 4 to 8, characterized in that: The specific steps include: (1) The oil-water mixture is connected to the vertical pipe (13) through the water inlet (2) on the oil-water separator cover (1), and the oil-water mixture flows into each spiral flow channel (1002) through the vertical pipe (13), and passes through multiple ramps (1001) in the multiple spiral flow channels (1002), so that the oil in the oil-water mixture floats to the liquid surface under the action of buoyancy and centrifugal force, and the floating oil is blocked by the oil separator (9) and focused to form a floating oil layer, while the water flows into the water collecting tank (8) through the gap between the bottom of the oil separator (9) and the oil-water separator housing (5), and is discharged through the drain pipe (11); (2) The thickness of the floating oil layer in the oil-water separator can be observed through the oil level observation window (16). When the thickness of the floating oil layer reaches the set oil discharge level, the liquid level regulating valve (3) is closed and the oil discharge valve (15) is opened. As the oil-water mixture continues to flow into the oil-water separator, the liquid level in the oil-water separator continues to rise, and the oil layer floating on the liquid surface also floats up. When the oil layer reaches the height of the oil collecting box (7), the floating oil flows into the oil collecting box (7) and is discharged to the collection container through the oil discharge valve (15). The floating oil is discharged. At the same time, the floating oil layer on the liquid surface gradually becomes thinner and the water level continues to rise. When the water reaches the height of the overflow port (6) on the liquid level regulating valve (3), the water is discharged through the overflow port (6), so that the water surface cannot reach the height of the oil collecting box (7) and the water cannot be discharged through the oil discharge valve (15). When there is no floating oil discharged from the oil discharge valve (15), the liquid level regulating valve (3) is opened and the oil discharge valve (15) is closed at the same time, and the water above the inlet of the drain pipe (11) is discharged, and the liquid level in the oil-water separator falls back to the normal working level.

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