Oil-water separation device

Abstract

The utility model discloses an oil-water separation device, which relates to the technical field of sewage treatment equipment and comprises a shell and a spiral pipeline, the shell is provided with a buffer cavity and a settling cavity, the buffer cavity is provided with a feed port, a discharge port and an exhaust port, the spiral pipeline is fixedly connected in the settling cavity, and the feed port of the spiral pipeline is communicated with the discharge port. The settling cavity is provided with a first discharge port and a second discharge port, and the first discharge port and the second discharge port are formed in the two ends of the settling cavity respectively. The oil-water separation device provided by the utility model can improve the oil-water separation effect.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment equipment technology, and in particular to an oil-water separation device. Background Technology

[0002] Direct discharge of oily wastewater will cause serious environmental pollution and waste of resources, such as the wastewater generated during the production of ranitidine hydrochloride. Therefore, before discharging oily wastewater, it should be separated into oil and water by an oil-water separation device in order to recover the oil in the wastewater.

[0003] In some existing oil-water separation devices, the inlet is connected to the settling zone via a vertical pipe. For example, the oil-water separator provided by Chinese patent CN212741248U includes an oil inlet pipe, a first pipe body, and a settling chamber. The oil inlet pipe is connected to the settling chamber via the first pipe body, which is a vertical pipe. The liquid to be treated, which enters the oil-water separation device from the inlet, directly enters the vertical pipe and falls vertically to the settling zone. The vertical fall of the liquid to be treated results in a faster flow rate, which can easily cause a large impact on small oil droplets when falling into the settling zone, thus affecting the separation effect.

[0004] Some existing oil-water separation devices use spiral pipes instead of vertical pipes, but their liquid inlet is directly connected to the inlet of the spiral pipe. For example, Chinese patent CN110028180A provides a central cylindrical double-layer plate spiral channel oil-water separator and oil-water separation method, which includes an outer cylinder, a double-layer plate spiral body and a conical oil discharge hopper. A coking wastewater inlet is provided on one side of the outer cylinder above the top of the double-layer plate spiral body. The double-layer plate spiral body is spirally inclined downward from the coking wastewater inlet to the upper inlet of the conical oil discharge hopper. When the liquid to be treated enters the oil-water separator directly through the inlet, it does not undergo preliminary gas-liquid separation before entering the double-layer plate spiral. As the liquid flows through the double-layer plate spiral, it may generate a large number of bubbles. These bubbles will disturb the liquid as they rise, thus affecting the separation effect. Furthermore, the liquid entering the oil-water separator through the inlet has a high flow rate, resulting in a faster flow rate within the double-layer plate spiral. Consequently, the residence time within the double-layer plate spiral is short, leading to a poor separation effect. Utility Model Content

[0005] The purpose of this invention is to provide an oil-water separation device to solve the problems existing in the prior art and improve the oil-water separation effect.

[0006] To achieve the above objectives, this utility model provides the following solution:

[0007] This utility model provides an oil-water separation device, characterized in that: it includes a shell and a spiral pipe, the shell has a buffer chamber and a settling chamber, the buffer chamber is provided with a feed inlet, a discharge outlet and an exhaust outlet, the spiral pipe is fixedly connected to the settling chamber, the feed inlet of the spiral pipe is connected to the discharge outlet, and the settling chamber is provided with a first discharge outlet and a second discharge outlet, the first discharge outlet and the second discharge outlet are respectively located at both ends of the settling chamber.

[0008] Preferably, it further includes a flow guiding component, which is fixedly connected to the inner cavity of the housing and divides the inner cavity of the housing into the buffer cavity and the settling cavity. The flow guiding component is funnel-shaped, with its small end located below its large end, and the small end of the flow guiding component has the discharge port.

[0009] Preferably, it further includes at least one damping device, each damping device including at least one damping component, each damping component being fixedly connected to the settling chamber of the housing, each damping component being able to adhere to oil droplets in the liquid to be treated and cause the oil droplets to flow downward along the surface of the damping component.

[0010] Preferably, the cross-section of each damping component is V-shaped, and the opening of the damping component faces downward.

[0011] Preferably, each of the damping components is provided with multiple through holes.

[0012] Preferably, there are multiple damping devices, and the multiple damping devices are arranged along the height direction of the housing. The multiple damping components of each damping device are arranged in a direction perpendicular to the height of the housing, and a gap is left between two adjacent damping components of each damping device.

[0013] Preferably, the damping components of each damping device are staggered with the damping components of adjacent damping devices, and when the damping component is V-shaped, the top of the damping component is provided with multiple through holes.

[0014] Preferably, it also includes a cooling component, which is fixedly connected to the housing and is capable of cooling the settling chamber.

[0015] Preferably, the cooling component is a spiral cooling pipe, which is disposed in the settling chamber. The inlet of the cooling pipe is located at the end of the housing away from the discharge port, and the outlet of the cooling pipe is located at the end of the housing close to the discharge port.

[0016] Preferably, a first viewing window is fixedly connected to the wall of the housing corresponding to the buffer cavity; a second viewing window is fixedly connected to the wall of the housing corresponding to the settling cavity.

[0017] The present invention achieves the following technical advantages over the prior art:

[0018] The oil-water separation device provided by this utility model includes a shell and a spiral pipe. The shell has a buffer chamber and a settling chamber. The buffer chamber is provided with an inlet, a outlet, and an exhaust port. The spiral pipe is fixedly connected to the settling chamber, and the inlet and outlet of the spiral pipe are connected. The liquid to be separated first enters the buffer chamber through the inlet, and then flows from the buffer chamber to the spiral pipe. This allows the liquid to remain in the buffer chamber, and the gas in the liquid to be separated can be initially released, resulting in less gas in the liquid to be separated entering the spiral pipe. This minimizes the generation of bubbles in the spiral pipe, reduces disturbance to the liquid to be separated, and improves the separation effect. The bottom wall of the buffer chamber can collide with the liquid to be separated, slowing it down and allowing the liquid to remain in the guide component and spiral pipe for a longer time, which is beneficial to improving the oil-water separation effect. Meanwhile, compared to vertical pipes, spiral pipes extend the flow path of the liquid to be separated within the pipe, thereby extending the separation time and improving the oil-water separation effect. Furthermore, compared to vertical pipes, spiral pipes can slow down the flow rate of the liquid to be separated, resulting in less impact on the liquid itself and the oil droplets at the bottom of the casing when the liquid flows out, further enhancing the oil-water separation effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the oil-water separation device provided by this utility model;

[0021] Figure 2 A schematic diagram of the structure of the damping component provided by this utility model;

[0022] In the diagram: 100, oil-water separator; 1, shell; 101, buffer chamber; 102, settling chamber; 103, feed inlet; 104, discharge outlet; 105, exhaust outlet; 106, first discharge outlet; 107, second discharge outlet; 2, spiral pipe; 3, flow guiding component; 4, damping component; 401, through hole; 5, cooling component; 6, first viewing window; 7, second viewing window. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this invention is to provide an oil-water separation device to solve the problems existing in the prior art and improve the oil-water separation effect.

[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] like Figure 1 As shown, this utility model provides an oil-water separation device 100, including a housing 1 and a spiral pipe 2. The housing 1 has a buffer chamber 101 and a settling chamber 102. The buffer chamber 101 is provided with an inlet 103, a discharge port 104 and an exhaust port 105. The spiral pipe 2 is fixedly connected to the settling chamber 102. The inlet 103 of the spiral pipe 2 is sealed and connected to the discharge port 104. The settling chamber 102 is provided with a first discharge port 106 and a second discharge port 107. The first discharge port 106 and the second discharge port 107 are respectively located at both ends of the settling chamber 102 in the height direction. The liquid to be separated first enters the buffer chamber 101 through the inlet 103, and then flows from the buffer chamber 101 to the spiral pipe 2. This allows the liquid to remain in the buffer chamber 101, enabling the gas in the liquid to be initially released. This results in less gas entering the spiral pipe 2, minimizing the generation of bubbles and reducing disturbance to the liquid, thus improving the separation effect. The bottom wall of the buffer chamber 101 can collide with the liquid to slow it down, allowing it to remain in the guide component 3 and the spiral pipe 2 for a longer time, which is beneficial for improving the oil-water separation effect. Furthermore, compared to a vertical pipe, the spiral pipe 2 extends the flow path of the liquid, thereby extending the separation time and further improving the oil-water separation effect. Also, compared to a vertical pipe, the spiral pipe 2 slows down the flow rate of the liquid, reducing the impact on itself and the oil droplets at the bottom of the casing 1 when the liquid flows out, further enhancing the oil-water separation effect.

[0027] It should be noted that the first discharge port 106 and the second discharge port 107 are generally located at the upper and lower ends of the settling chamber 102, respectively. The oil-water separation device 100 provided by this utility model can be used for the separation of oil with a density greater than water or oil with a density less than water and water. When used for the separation of oil with a density greater than water and water, the oil is discharged from the second discharge port 107 at the lower end of the settling chamber 102, and the water is discharged from the first discharge port 106 of the settling chamber 102. When used for the separation of oil with a density less than water and water, the water is discharged from the second discharge port 107 at the lower end of the settling chamber 102, and the oil is discharged from the first discharge port 106 of the settling chamber 102.

[0028] Furthermore, the oil-water separation device 100 provided by this utility model also includes a flow guiding component 3, which is fixedly connected to the inner cavity of the housing 1, and the flow guiding component 3 divides the inner cavity of the housing 1 into the buffer cavity 101 and the settling cavity 102. The flow guiding component 3 is funnel-shaped, and the small end of the flow guiding component 3 is located below the large end of the flow guiding component 3. The small end of the flow guiding component 3 has the discharge port 104.

[0029] In a preferred embodiment, the large end of the flow guiding component 3 is fixedly connected to the inner wall of the housing 1. The inlet 103 is disposed on the side wall of the buffer chamber 101 or on the top of the buffer chamber 101. When the inlet 103 is disposed on the top of the buffer chamber 101, the center line of the discharge port 104 of the flow guiding component 3 is not collinear with the center line of the inlet 103. This ensures that the liquid to be separated does not flow vertically toward the discharge port 104 of the flow guiding component 3 after entering through the inlet 103. Instead, it flows to the inclined inner wall of the flow guiding component 3 first, and then is guided by the inclined inner wall of the flow guiding component 3 to the discharge port 104 of the flow guiding component 3. This prolongs the flow path and residence time of the liquid to be separated in the buffer chamber 101, allowing the gas to overflow more effectively.

[0030] Furthermore, the oil-water separation device 100 provided by this utility model also includes at least one damping device. Each damping device includes at least one damping component 4, and each damping component 4 is fixedly connected to the settling chamber 102 of the housing 1. Each damping component 4 can adhere to oil droplets in the liquid to be treated and cause the oil droplets to flow downwards along the surface of the damping component 4. As a preferred real-time configuration, the spiral pipe 2 is spirally arranged in the vertical direction, the damping device is located in the area near the outlet of the spiral pipe 2, and an oil storage chamber is provided between the damping device and the second discharge port 107 at the bottom of the housing 1. It should be noted that the damping device is mainly used for the separation of oil with a density greater than water from water. The oil flows along the surface of the damping component 4 until it falls into the oil storage chamber.

[0031] In a preferred embodiment, each damping component 4 has a V-shaped cross-section, and the opening of each damping component 4 faces downward. That is, each damping component 4 includes two damping plates, with the upper edge of one damping plate fixedly connected to the upper edge of the other damping plate. The angle between each damping plate and the vertical plane containing the upper edge of each damping component 4 is greater than 0°. An opening of the damping component 4 is formed between the lower edges of the two damping plates of each damping component 4. Small oil droplets are mainly attached to the two inclined upper surfaces of the damping component 4, and during the downward flow, they form larger oil droplets, eventually falling into the oil storage chamber, thereby improving the effect and efficiency of oil-water separation.

[0032] As a preferred embodiment, the two ends of the damping component 4 are fixedly connected to the side wall of the housing 1.

[0033] Furthermore, each of the damping components 4 is provided with multiple through holes 401. Light components such as water and gas in the liquid to be separated can move upward through the through holes 401 to achieve oil-water separation.

[0034] In a preferred embodiment, there are multiple damping devices, arranged along the height direction of the housing 1. Each damping device has multiple damping components 4 arranged perpendicular to the height of the housing 1, with a gap between adjacent damping components 4. By providing multiple damping devices, more adhesion surface can be provided for oil droplets, thereby improving the oil-water separation effect and efficiency.

[0035] In a preferred embodiment, each damping component 4 of each damping device is staggered with the damping components 4 of the adjacent damping devices, that is, the top of the lower V-shaped damping component 4 is opposite to the gap between the two adjacent damping components 4 above, so that when the oil droplets sink downward, they are more likely to adhere to the upper surface of the damping component 4, thereby improving the oil-water separation effect and efficiency.

[0036] In a preferred embodiment, when the damping component 4 is V-shaped, the top of the damping component 4 is provided with a plurality of through holes 401.

[0037] Furthermore, the oil-water separation device 100 provided by this utility model also includes a cooling component 5, which is fixedly connected to the shell 1. The cooling component 5 can cool the settling chamber 102. The temperature of the medium inside the cooling component 5 is reasonably set according to the cost of the liquid to be separated, so that the temperature inside the shell 1 is at a lower temperature, reducing the degree of micro-boiling and vaporization of low-boiling-point components, reducing the loss of low-boiling-point materials, and improving economic efficiency. If the temperature is higher, type II methane is easily vaporized and will dissolve more in water. The vaporized type II methane will overflow from the first discharge port 106, causing material loss. On the other hand, type II methane dissolved in water will enter the subsequent biological water treatment device with the water, where it will be decomposed into carbon dioxide by microorganisms, thereby increasing carbon dioxide emissions.

[0038] In a preferred embodiment, the cooling component 5 is a spiral cooling tube disposed within the settling chamber 102. The inlet of the cooling tube is located at the end of the housing 1 away from the discharge port 104, and the outlet of the cooling tube is located at the end of the housing 1 near the discharge port 104. In a more preferred embodiment, the spiral cooling tube is disposed along the inner wall of the settling chamber 102.

[0039] Furthermore, a first viewing window 6 is fixedly connected to the wall of the housing 1 corresponding to the buffer chamber 101; a second viewing window 7 is fixedly connected to the wall of the housing 1 corresponding to the settling chamber 102. The first viewing window 6 is used to observe the liquid level in the buffer chamber 101. When the liquid level in the buffer chamber 101 is close to the height of the exhaust port 105, the feeding can be slowed down or stopped. The second viewing window 7 is used to observe the liquid level of the oil in the settling chamber 102. When the oil settles to a certain level, the second discharge port 107 can be opened to collect the oil.

[0040] In a preferred embodiment, the bottom of the settling chamber 102 is conical, which facilitates the flow of oil droplets along the conical inner wall of the shell 1 toward the second discharge port, and is conducive to the collection and discharge of oil droplets.

[0041] In a preferred embodiment, the exhaust port 105 and the first viewing window 6 are disposed on the top wall of the housing 1, and the second viewing window 7 is disposed on the conical side wall of the housing 1.

[0042] This invention is applicable to the treatment of oily wastewater generated during the production of ranitidine hydrochloride and other similar processes.

[0043] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An oil-water separation device, characterized in that: The device includes a shell and a spiral pipe. The shell has a buffer chamber and a settling chamber. The buffer chamber has a feed inlet, a discharge outlet and an exhaust outlet. The spiral pipe is fixedly connected to the settling chamber. The feed inlet of the spiral pipe is connected to the discharge outlet. The settling chamber has a first discharge outlet and a second discharge outlet, which are respectively located at both ends of the settling chamber.

2. The oil-water separation device according to claim 1, characterized in that: It also includes a flow guiding component, which is fixedly connected to the inner cavity of the housing and divides the inner cavity of the housing into the buffer cavity and the settling cavity. The flow guiding component is funnel-shaped, with the small end of the flow guiding component located below the large end of the flow guiding component, and the small end of the flow guiding component has the discharge port.

3. The oil-water separation device according to claim 1, characterized in that: It also includes at least one damping device, each damping device including at least one damping component, each damping component being fixedly connected to the settling chamber of the housing, each damping component being able to adhere to oil droplets in the liquid to be treated and cause the oil droplets to flow downward along the surface of the damping component.

4. The oil-water separation device according to claim 3, characterized in that: Each of the damping components has a V-shaped cross-section, and the opening of the damping component faces downward.

5. The oil-water separation device according to claim 3 or 4, characterized in that: Each of the damping components is provided with multiple through holes.

6. The oil-water separation device according to claim 4, characterized in that: There are multiple damping devices, and the multiple damping devices are arranged along the height direction of the shell. The multiple damping components of each damping device are arranged in a direction perpendicular to the height of the shell, and there is a gap between two adjacent damping components of each damping device.

7. The oil-water separation device according to claim 6, characterized in that: Each damping component of each damping device is staggered with the damping components of the adjacent damping devices, and when the damping component is V-shaped, the top of the damping component is provided with multiple through holes.

8. The oil-water separation device according to claim 1, characterized in that: It also includes a cooling component, which is fixedly connected to the housing and is capable of cooling the settling chamber.

9. The oil-water separation device according to claim 1, characterized in that: The cooling component is a spiral cooling tube, which is disposed in the settling chamber. The inlet of the cooling tube is located at the end of the housing away from the discharge port, and the outlet of the cooling tube is located at the end of the housing close to the discharge port.

10. The oil-water separation device according to claim 1, characterized in that: A first viewing window is fixedly connected to the wall of the housing corresponding to the buffer cavity; a second viewing window is fixedly connected to the wall of the housing corresponding to the settling cavity.

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