Safe and easy-to-install grease traps and port oily wastewater treatment systems using them.

Abstract

This utility model proposes a safe and easy-to-install grease trap, comprising a grease trap body, a heat exchanger network of a heat-conducting liquid, at least two supporting beam-column mechanisms, multiple clamping devices, and a heat-conducting liquid circulation heating device; the heat exchanger network of the heat-conducting liquid has a coil structure in the shape of a snake or a wave; the two supporting beam-column mechanisms are a first supporting beam-column mechanism and a second supporting beam-column mechanism; each supporting beam-column mechanism includes a supporting beam and at least two supporting columns for supporting the supporting beam; the two supporting beam-column mechanisms respectively support the left and right sides of the heat exchanger network of the heat-conducting liquid; this utility model also proposes a port oil and wastewater treatment system using a safe and easy-to-install grease trap, comprising the grease trap, loading arm oil pump, oil and wastewater pump, ship oil extraction pipeline, at least one loading arm device, and loading arm installation platform as described above; this utility model makes the grease trap easy to install and safe, thereby improving the grease trap's treatment efficiency for port oil and wastewater in winter.

Description

Technical Field

[0001] This utility model relates to the field of port oily wastewater technology, specifically to a safe and easy-to-install grease trap and a port oily wastewater treatment system using the same. Background Technology

[0002] In the petrochemical, port and shipping industries, oily wastewater treatment is a crucial link in environmental governance and resource recovery. Under low-temperature conditions (especially in winter), the separation efficiency of mineral oil and water in oily wastewater decreases significantly, leading to excessive water content in the treated oil and affecting its recycling value. Current technologies generally rely on physical sedimentation combined with the addition of demulsifiers, but low temperatures inhibit the activity of demulsifiers, exacerbating the separation difficulty. Traditional oil separators mainly achieve oil-water separation through gravity sedimentation, but require additional heating under low-temperature conditions.

[0003] In the field of port oily wastewater treatment technology, oily wastewater from ships or ports is transferred to port grease traps via dedicated receiving facilities. Oil-water separation is achieved through demulsification, flocculation, and sedimentation technology (i.e., the collected oily wastewater is typically stored in the grease trap, where demulsification, flocculation, and sedimentation occur). The separated waste oil is then transported away by tanker trucks. Existing grease trap heating technologies have the following limitations: Direct steam heating: high energy consumption and potential introduction of moisture, affecting oil purity; Direct electric heating rods: uneven local temperature, prone to coking or equipment damage; External heat exchangers for oily wastewater circulation: require modification of the tank structure, complex construction, and high cost. In existing technologies, even with demulsifiers, oily wastewater at around 10°C in winter may not separate due to the low temperature, easily leading to production stoppages and economic losses. To address the issue of low efficiency in port oily wastewater treatment during winter, a safe and easy-to-install grease trap needs to be designed, while also avoiding the safety risk of accidentally igniting residual waste oil during construction inside the grease trap. Utility Model Content

[0004] In view of this, it is necessary to propose a safe and easy-to-install grease trap and a port oily wastewater treatment system using it, in order to overcome some of the shortcomings of the prior art and solve the following technical problems:

[0005] How to provide a grease trap that can be safely and easily installed or modified, so as to improve the efficiency of the grease trap in treating port oily wastewater in winter under safe operating conditions?

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model proposes a safe and easy-to-install grease trap, which includes:

[0008] The main body of the grease trap is used to store and treat oily wastewater;

[0009] A heat exchanger network of thermally conductive liquid is installed inside the main body of the oil separator; the heat exchanger network of thermally conductive liquid is a coil structure in the shape of a snake or a wave; the oil outlet of the heat exchanger network of thermally conductive liquid is connected to a first branch pipe, which penetrates the main body of the oil separator, and the oil inlet of the heat exchanger network of thermally conductive liquid is connected to a second branch pipe, which penetrates the main body of the oil separator.

[0010] At least two supporting beam-column mechanisms, wherein the two supporting beam-column mechanisms are a first supporting beam-column mechanism and a second supporting beam-column mechanism; the supporting beam-column mechanism includes a supporting beam and at least two supporting columns for supporting the supporting beam; wherein the two supporting beam-column mechanisms respectively support the left and right sides of the heat exchanger network of the heat transfer liquid;

[0011] Multiple clamping devices; the clamping devices are used to snap-fit ​​the heat exchanger network of the heat transfer liquid to the supporting beam;

[0012] A heat transfer liquid circulation heating device is installed outside the main body of the oil separator; the heat transfer liquid circulation heating device is connected to the first branch pipe and the second branch pipe respectively, and is used to circulate and heat the heat transfer liquid in the heat transfer liquid heat exchange pipe network.

[0013] Furthermore, the heat exchanger network of the heat-conducting liquid includes multiple straight pipes spaced apart, and adjacent straight pipes are connected by a U-shaped bend or a ∩-shaped bend.

[0014] Furthermore, two adjacent straight pipes are arranged in parallel.

[0015] Furthermore, all straight pipes are located on the same horizontal plane.

[0016] Furthermore, the supporting beam intersects or is perpendicular to each straight pipe, each straight pipe is located above the supporting beam and supported by the supporting beam, and the straight pipe and the supporting beam are connected by a clamp device.

[0017] Furthermore, the supporting beam intersects or is perpendicular to each straight pipe, and more than 80% of the straight pipes are located above the supporting beam and supported by the supporting beam. The straight pipes supported by the supporting beam are connected to the supporting beam by a clamp device.

[0018] Furthermore, the clamp device includes an inverted U-shaped buckle and a connecting crossbar block with two openings. The two ends of the inverted U-shaped buckle are provided with threads that mate with nuts. The inverted U-shaped buckle is connected to the connecting crossbar block through two nuts to form a detachable closed-loop clamp. When the clamp device is installed, the top section of the inverted U-shaped buckle is located above the straight pipe, the left section of the inverted U-shaped buckle is located next to one side of a supporting beam, and the right section of the inverted U-shaped buckle is located next to the other side of the supporting beam.

[0019] This utility model proposes a port oily wastewater treatment system using a safe and easy-to-install grease trap, comprising:

[0020] A safe and easy-to-install grease trap as described in any of the preceding items;

[0021] Loading arm oil pump;

[0022] Oily wastewater pump;

[0023] Ship oil extraction pipeline; the ship oil extraction pipeline is used to pump oily wastewater from ships docked in port to the main body of the oil separator via the oily wastewater pump.

[0024] At least one loading arm device, the loading arm device being connected to a loading arm oil pump, the loading arm device being used to extract oil that has undergone oil-water separation treatment in the main body of the oil separator.

[0025] Loading arm installation platform, used for installing loading arm devices.

[0026] Furthermore, there are two loading arms, namely the first oil loading arm and the second oil loading arm.

[0027] The first oil loading arm extends into the main body of the oil separator and extracts oil after oil-water separation treatment via the oil loading arm pump. The second oil loading arm, via the oil loading arm pump, transports the oil after oil-water separation treatment flowing through the first and second oil loading arms to a tanker truck located next to the main body of the oil separator. A section of the first oil loading arm with an oil inlet is located above the oil loading arm installation platform. When the tanker truck is loading oil, the tanker truck is located to the side of the oil loading arm installation platform. When the tanker truck is loading oil, a section of the second oil loading arm with an oil outlet is located above the tanker truck.

[0028] Furthermore, the loading arm installation platform is a frame steel structure; the loading arm installation platform is located on the side of the main body of the oil separator.

[0029] The beneficial effects of this utility model are as follows:

[0030] This invention enables the rapid and safe installation of heat exchange pipelines for the heat-conducting liquid within the grease trap, reducing the installation or modification costs of port grease traps. It also avoids hot work and cutting operations within the grease trap, meeting the port's fire safety requirements and thus ensuring improved efficiency in treating port oily wastewater during winter under safe operating conditions.

[0031] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0032] Figure 1This is a schematic diagram of the structure of a safe and easy-to-install grease trap of this utility model without the installation of the clamping device and the heat-conducting liquid circulation heating device;

[0033] Figure 2 This is a front view of the clamp device involved in this utility model;

[0034] Figure 3 for Figure 1 A magnified view of a portion of the image;

[0035] Figure 4 This is a partial schematic diagram of the installation structure of the clamp device, the beam and column support mechanism, and the heat-conducting liquid circulation heating device involved in this utility model from a top view.

[0036] Figure 5 This is a top view of a port oily wastewater treatment system with a safe and easy-to-install grease trap, according to the present invention.

[0037] Figure 6 This is a side view schematic diagram of the installation structure of the ship's oil extraction pipeline, loading arm installation platform, and oil separator body according to this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Oil separator body; 2. Heat exchanger network of heat transfer liquid; 21. Straight pipe; 3. Support beam and column mechanism; 31. Support beam; 32. Support column; 4. Clamping device; 41. Inverted U-shaped buckle; 42. Connecting crossbar; 5. Heat transfer liquid circulation heating device; 600. Loading arm oil pump.

[0040] Ship oil pumping pipeline 200; loading arm installation platform 300; first loading arm 400; second loading arm 500; staircase 3001; tanker truck 700. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be further described clearly and completely below in conjunction with the embodiments of this utility model. It should be noted that the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0042] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The terms “first,” “second,” “third,” and “fourth” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, the use of “first,” “second,” “third,” and “fourth” to designate a feature may explicitly or implicitly include one or more of that feature.

[0044] Example 1

[0045] like Figures 1-5 As shown:

[0046] This embodiment proposes a safe and easy-to-install grease trap, which includes:

[0047] The main body of the grease trap 1 is used for storing and treating oily wastewater;

[0048] A heat transfer fluid heat exchange network 2 is installed inside the oil separator body 1; the heat transfer fluid heat exchange network 2 has a coil structure in the shape of a snake or a wave; the oil outlet of the heat transfer fluid heat exchange network 2 is connected to a first branch pipe, which penetrates the oil separator body 1, and the oil inlet of the heat transfer fluid heat exchange network 2 is connected to a second branch pipe, which penetrates the oil separator body 1.

[0049] At least two supporting beam-column mechanisms 3, wherein the two supporting beam-column mechanisms 3 are a first supporting beam-column mechanism 3 and a second supporting beam-column mechanism 3; the supporting beam-column mechanism 3 includes a supporting beam 31 and at least two supporting columns 32 for supporting the supporting beam 31; wherein the two supporting beam-column mechanisms 3 respectively support the left and right sides of the heat transfer liquid heat exchange pipeline network 2.

[0050] Multiple clamping devices 4; the clamping devices 4 are used to fasten the heat transfer liquid heat exchange network 2 to the supporting beam 31.

[0051] The heat transfer liquid circulation heating device 5 is installed outside the oil separator body 1; the heat transfer liquid circulation heating device 5 is connected to the first branch pipe and the second branch pipe respectively, and is used to circulate and heat the heat transfer liquid in the heat transfer liquid heat exchange network 2.

[0052] Ideally, the heat exchanger network 2 for the heat-conducting liquid includes a plurality of straight pipes 21 spaced apart, and adjacent straight pipes 21 are connected by a U-shaped bend or a ∩-shaped bend.

[0053] Ideally, two adjacent straight pipes 21 are arranged in parallel.

[0054] Ideally, all straight pipes 21 are located on the same horizontal plane.

[0055] Ideally, the supporting beam 31 intersects or is perpendicular to each straight pipe 21, each straight pipe 21 is located above the supporting beam 31 and is supported by the supporting beam 31, and the straight pipe 21 and the supporting beam 31 are connected by a clamping device 4.

[0056] Ideally, the supporting beam 31 intersects or is perpendicular to each straight pipe 21, and more than 80% of the straight pipes 21 are located above the supporting beam 31 and supported by the supporting beam 31. The straight pipes 21 supported by the supporting beam 31 are connected to the supporting beam 31 by a clamping device 4.

[0057] Optimally, the clamp device 4 includes an inverted U-shaped buckle 41 and a connecting crossbar block 42 with two openings. The two ends of the inverted U-shaped buckle 41 are provided with threads that mate with nuts. The inverted U-shaped buckle 41 is connected to the connecting crossbar block 42 through two nuts to form a detachable closed-loop clamp. When the clamp device 4 is installed, the top section of the inverted U-shaped buckle 41 is located above the straight pipe 21, the left section of the inverted U-shaped buckle 41 is located next to one side of a supporting beam 31, and the right section of the inverted U-shaped buckle 41 is located next to the other side of the supporting beam 31.

[0058] Specifically, the heat-conducting liquid circulation heating device 5 is a heating oil pipe; the oil separator body 1 is used to settle flocculent matter to separate oil and water in the oily wastewater.

[0059] Further optimization is possible by designing the thermally conductive liquid circulating heating device 5 into multiple layers of heating oil pipes to improve heating efficiency. When the thermally conductive liquid circulating heating device 5 is designed into multiple layers, it is easier to install by means of clamp device (4).

[0060] The grease trap in this embodiment enables the grease trap body 1 to meet the fire protection requirements of the heat transfer liquid circulation heating device 5, which requires no welding and is securely installed. It also facilitates the installation of the heat transfer liquid circulation heating device 5 and the cleaning of sediment and flocculent matter inside the grease trap body 1. The grease trap in this embodiment ensures that no open flame, no cutting, and no alteration to any structure or size of the original grease trap are required during installation.

[0061] Example 2

[0062] like Figures 1-6 As shown:

[0063] This embodiment proposes a port oily wastewater treatment system using a safe and easy-to-install grease trap, comprising:

[0064] A safe and easy-to-install grease trap as described in any of the technical solutions in Embodiment 1;

[0065] 600 oil loading arm pump;

[0066] Oily wastewater pump;

[0067] Ship oil extraction pipeline 200; Ship oil extraction pipeline 200 is used to pump oily wastewater from ships docked at the port into the grease trap body 1 via the oily wastewater pump.

[0068] At least one loading arm device is provided, which is connected to the loading arm oil pump 600. The loading arm device is used to extract oil that has been treated by oil-water separation in the oil separator body 1.

[0069] The loading arm installation platform 300 is used for installing loading arm devices.

[0070] Ideally, the number of loading arms is two, namely the first oil loading arm 400 and the second oil loading arm 500.

[0071] The first oil loading arm 400 extends into the oil separator body 1 and draws oil after oil-water separation treatment through the oil loading arm pump 600; the second oil loading arm 500 is used by the oil loading arm pump 600 to transport the oil after oil-water separation treatment flowing through the first oil loading arm 400 and the second oil loading arm 500 to the tank truck 700 located next to the oil separator body 1; a section of the first oil loading arm 400 with an oil inlet is located above the oil loading arm installation platform 300; when the tank truck 700 is loading oil, the tank truck 700 is located to the side of the oil loading arm installation platform 300; when the tank truck 700 is loading oil, a section of the second oil loading arm 500 with an oil outlet is located above the tank truck 700.

[0072] Ideally, the loading arm installation platform 300 is a frame steel structure; the loading arm installation platform 300 is located beside the main body 1 of the oil separator.

[0073] Furthermore, the loading arm installation platform 300 is also provided with a staircase 3001, which is used to facilitate personnel to climb to the top of the loading arm installation platform 300 and observe the interior of the grease trap body 1 from below.

[0074] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A safety and convenient installation of an oil separation tank, characterized by, The grease trap includes: The main body of the grease trap (1) is used to store and treat oily wastewater; A heat-conducting liquid heat exchange network (2) is installed inside the oil separator body (1); the heat-conducting liquid heat exchange network (2) is a coil structure in the shape of a snake or a wave; the oil outlet of the heat-conducting liquid heat exchange network (2) is connected to a first branch pipe, which penetrates the oil separator body (1); the oil inlet of the heat-conducting liquid heat exchange network (2) is connected to a second branch pipe, which penetrates the oil separator body (1). At least two supporting beam-column mechanisms (3), wherein the two supporting beam-column mechanisms (3) are a first supporting beam-column mechanism (3) and a second supporting beam-column mechanism (3); the supporting beam-column mechanism (3) includes a supporting beam (31) and at least two supporting columns (32) for supporting the supporting beam (31); wherein the two supporting beam-column mechanisms (3) respectively support the left and right sides of the heat exchanger network (2) of the heat transfer liquid; Multiple clamp devices (4); the clamp devices (4) are used to snap together the heat exchange network (2) of the heat transfer liquid and the supporting beam (31); A heat transfer liquid circulation heating device (5) is installed outside the main body (1) of the oil separator. The heat transfer liquid circulation heating device (5) is connected to the first branch pipe and the second branch pipe respectively, and is used to circulate and heat the heat transfer liquid in the heat transfer liquid heat exchange network (2).

2. The safe and easy-to-install grease interceptor according to claim 1, characterized in that, The heat exchange network (2) for the heat-conducting liquid includes multiple straight pipes (21) spaced apart, and adjacent straight pipes (21) are connected by a U-shaped bend or a ∩-shaped bend.

3. The safe and easy-to-install grease trap according to claim 2, characterized in that, Two adjacent straight pipes (21) are set in parallel.

4. The safe and easy-to-install grease interceptor according to claim 3, characterized in that, Each straight pipe (21) is located on the same horizontal plane.

5. The safe and easy-to-install grease interceptor according to claim 4, characterized in that, The supporting beam (31) intersects or is perpendicular to each straight pipe (21). Each straight pipe (21) is located above the supporting beam (31) and supported by the supporting beam (31). The straight pipe (21) and the supporting beam (31) are connected by a clamp device (4).

6. The safe and easy-to-install grease interceptor according to claim 5, characterized in that, The supporting beam (31) intersects or is perpendicular to each straight pipe (21). More than 80% of the straight pipes (21) are located above the supporting beam (31) and supported by the supporting beam (31). The straight pipes (21) supported by the supporting beam (31) are connected to the supporting beam (31) by clamping device (4).

7. The safe and easy-to-install grease interceptor according to any one of claims 2-6, characterized in that The clamp device (4) includes an inverted U-shaped buckle (41) and a connecting crossbar (42) with two openings. The two ends of the inverted U-shaped buckle (41) are provided with threads that cooperate with nuts. The inverted U-shaped buckle (41) is connected to the connecting crossbar (42) through two nuts to form a detachable closed-loop clamp. When the clamp device (4) is installed, the top section of the inverted U-shaped buckle (41) is located above the straight pipe (21), the left section of the inverted U-shaped buckle (41) is located next to one side of a supporting beam (31), and the right section of the inverted U-shaped buckle (41) is located next to the other side of the supporting beam (31).

8. A port oily wastewater treatment system using a safety and easy installation type oil separation tank, characterized in that, include: A safe and easy-to-install grease trap as described in any one of claims 1-7; Loading arm oil pump (600); Oily wastewater pump; Ship oil extraction pipeline (200); Ship oil extraction pipeline (200) is used to pump oily wastewater from ships docked at the port to the oil separator body (1) via the oily wastewater pump; At least one loading arm device is connected to a loading arm oil pump (600) and is used to extract oil that has been treated by oil-water separation from the main body (1) of the oil separator. Loading arm installation platform (300) is used to install loading arm devices.

9. The port oil contaminated water treatment system of claim 8, wherein, The number of loading arms is two, namely the first oil loading arm (400) and the second oil loading arm (500). The first oil loading arm (400) is used to extend into the oil separator body (1) and extract oil after oil-water separation treatment through the loading arm oil pump (600); the second oil loading arm (500) is used to transport the oil after oil-water separation treatment flowing through the first oil loading arm (400) and the second oil loading arm (500) to the oil tanker (700) located next to the oil separator body (1) through the loading arm oil pump (600); a section of the first oil loading arm (400) with an oil inlet is located above the oil loading arm installation platform (300); when the oil tanker (700) is loaded with oil, the oil tanker (700) is located to the side of the oil loading arm installation platform (300); when the oil tanker (700) is loaded with oil, a section of the second oil loading arm (500) with an oil outlet is located above the oil tanker (700).

10. The harbor oily water treatment system of claim 8, wherein, The loading arm installation platform (300) is a frame steel structure; the loading arm installation platform (300) is located on the side of the main body (1) of the oil separator.

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