Under-kitchen oil-water separator

Abstract

The utility model relates to the technical field of wastewater treatment equipment, in particular to an under-kitchen oil-water separator which comprises a water inlet cabin, a water outlet cabin and a separation cabin, a water inlet is formed in the water inlet cabin, a water outlet is formed in the water outlet cabin, the water inlet is higher than the water outlet, and the water inlet cabin and the water outlet cabin are both located on the outer top surface of the separation cabin. An overflow side plate extending towards the top is arranged at the bottom opening of the water inlet cabin, an overflow channel is formed in the inner side wall, close to the separation cabin, of the overflow side plate, an oil blocking plate is arranged at the bottom opening of the drainage cabin, and the top end of the oil blocking plate is higher than the bottom face of the drainage cabin; the bottom end of the oil blocking plate is close to the inner bottom face of the separation cabin, a drainage channel is formed in the inner side wall, close to the separation cabin, of the oil blocking plate, an oil discharge outlet capable of being opened and closed is formed in the top of the separation cabin, and a sludge discharge outlet capable of being opened and closed is formed in the position close to the bottom. The oil-water separation efficiency of the under-kitchen type oil-water separator is higher.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment equipment, and in particular to an under-sink oil-water separator. Background Technology

[0002] With the gradual development of the catering industry and the increasing demand for home kitchens, the design of traditional oil-water separators can no longer meet the requirements of modern kitchen space and ease of use.

[0003] Existing under-sink oil-water separators typically have the following problems: (1) Large size and complex installation: Some traditional equipment requires a separate equipment room to reserve enough space to connect various pipes and valves to achieve oil-water separation; some traditional equipment needs to be buried underground to connect with various pipes also located underground to achieve oil-water separation; and these traditional equipment are obviously not suitable for the spatial layout of modern kitchens due to their large size and complex installation; (2) Inconvenient cleaning and maintenance: Most traditional equipment is not equipped with a flexible oil collection device, and oil can only be manually scooped out when it is full. The long-term accumulation of oil can easily cause hardening inside the equipment, and manual oil scooping is also difficult. (3) Low oil-water separation efficiency: Many existing equipment adopts a square box shape, and oil and wastewater can only be separated slowly by gravity, resulting in poor separation effect; (4) Poor space adaptability: The opening direction and opening height of the grease trap on traditional equipment are fixed, and the equipment cannot be installed on site due to space limitations. It generally lacks flexibility to adapt to different kitchen layouts; (5) Easy to rust and difficult to maintain: Most existing equipment is made of 304 stainless steel or 201 stainless steel, and no anti-rust treatment is applied to the surface of the material. After two to three years of use, different degrees of pitting corrosion or line corrosion will occur.

[0004] Therefore, there is an urgent need for a newly designed under-sink oil-water separator to meet the requirements of modern kitchen space and ease of use. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides an under-sink oil-water separator with higher oil-water separation efficiency.

[0006] The present invention adopts the following technical solution:

[0007] This utility model provides an under-sink oil-water separator, including a water inlet chamber, a drainage chamber, and a separation chamber. The water inlet chamber has a water inlet, and the drainage chamber has a drainage outlet. The water inlet is positioned higher than the drainage outlet. Both the water inlet chamber and the drainage chamber are located on the outer top surface of the separation chamber, and both the water inlet chamber and the drainage chamber are connected to the separation chamber through bottom openings. The water inlet chamber has an overflow side plate extending upwards from the bottom opening. The overflow side plate forms an overflow channel near the inner wall of the separation chamber. The drainage chamber has an oil-blocking plate at the bottom opening. The top of the oil-blocking plate is higher than the bottom surface of the drainage chamber, and the bottom of the oil-blocking plate is close to the inner bottom surface of the separation chamber. The oil-blocking plate forms a drainage channel near the inner wall of the separation chamber. The separation chamber has an openable and closable oil outlet at the top and an openable and closable sludge outlet near the bottom.

[0008] Preferably, a suspension frame is provided inside the water inlet chamber. The suspension frame forms a water storage space by suspending a coarse slag box. The water inlet is located in the water storage space. Multiple filter mesh holes are evenly opened on the side plate of the suspension frame.

[0009] Preferably, the drain outlet is located on the side of the drain chamber and is positioned close to the inner bottom surface of the drain chamber, with the inner bottom surface of the drain chamber inclined towards the drain outlet.

[0010] Preferably, an oil drain rack is provided on the top of the separation chamber at the oil drain port, and an oil collection box is suspended from the oil drain rack in the separation chamber, so that the grease discharged from the oil drain port can flow into the oil collection box through the oil drain rack.

[0011] Preferably, a columnar frame is provided at the oil drain port inside the separation chamber, and a float that can float up and down is placed inside the columnar frame. The density of the float is between that of water and grease, and the diameter of the float is larger than the diameter of the oil drain port, so that the oil drain port can be opened and closed by the up and down movement of the float.

[0012] Preferably, one end of the bottom surface of the separation chamber is bent toward the mud discharge port.

[0013] Preferably, the separation chamber is equipped with adjustable support feet at the four corners of its outer bottom surface.

[0014] Preferably, adjustable joints are installed at the water inlet and the water outlet respectively.

[0015] Preferably, a heating component is installed inside the separation chamber.

[0016] Preferably, the under-sink oil-water separator is made entirely of 316 stainless steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In use, the under-sink oil-water separator of this utility model allows catering wastewater to enter the inlet chamber through the inlet. After the inlet chamber is filled, initial oil-water separation occurs, with large particles of residue trapped inside. The remaining portion of the catering wastewater overflows from the overflow side plate. The overflowing wastewater flows into the wider separation chamber after passing through a narrow overflow channel, which promotes the aggregation of grease droplets, forming larger grease droplets and accelerating the separation process. After entering the separation chamber, the catering wastewater undergoes further oil-water separation. Since the density of grease is less than that of water, a large number of grease droplets float on the water surface and accumulate to form an grease layer. Then, the grease on the water surface can be discharged by opening the drain port. Because the inlet is higher than the drain port, a height difference is created. Based on the principle of communicating vessels, water naturally flows out of the drain port under the action of gravity. Furthermore, due to the existence of the drain channel, grease cannot be discharged from the drain port, ensuring oil-water separation. The sludge accumulated in the separation chamber can be discharged from the sludge discharge port.

[0019] Obviously, the under-sink oil-water separator of this invention can achieve higher oil-water separation efficiency through secondary oil-water separation and the design of an overflow channel to promote the aggregation of grease droplets. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the under-sink oil-water separator in this embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the under-sink oil-water separator after the cover plate has been removed, according to an embodiment of this utility model.

[0022] Figure 3 This is a schematic diagram of the internal structure of the upper water inlet chamber of the under-sink oil-water separator in this embodiment of the present invention.

[0023] Figure 4 This is a first cross-sectional view of the under-sink oil-water separator in this embodiment of the present invention.

[0024] Figure 5 This is an installation diagram of the oil collection box on the under-sink oil-water separator in an embodiment of this utility model.

[0025] Figure 6 This is a second cross-sectional view of the under-sink oil-water separator in an embodiment of this utility model.

[0026] Figure 7 This is a structural diagram of the coarse slag box on the under-sink oil-water separator in an embodiment of this utility model.

[0027] Figure 8 This is a structural diagram of the oil collection box on the under-sink oil-water separator in an embodiment of this utility model.

[0028] The reference numerals in the attached figures are explained as follows:

[0029] 1. Intake tank 303, float

[0030] 101. Overflow side plate; 4. Water inlet

[0031] 102. Suspension bracket 5. Drain outlet

[0032] 103. Filter mesh size; 6. Overflow channel

[0033] 104. Inlet tank cover; 7. Drainage channel

[0034] 2. Drainage compartment; 8. Oil drain port

[0035] 201. Oil baffle plate; 9. Sludge discharge port

[0036] 202. Drainage chamber cover plate; 10. Coarse slag box

[0037] 203, buckle 11, water storage space

[0038] 204, Slide 12, Handle

[0039] 205. Oil drain observation port; 13. Oil collection box

[0040] 206. Oil recovery observation port 14. Ball valve

[0041] 3. Separation compartment 15. Footing

[0042] 301. Oil drain rack; 16. Heating assembly

[0043] 302. Columnar Frame Detailed Implementation

[0044] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0045] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] See Figure 1 , Figure 2 and Figure 4 This embodiment provides an under-sink oil-water separator, including a water inlet chamber 1, a drainage chamber 2, and a separation chamber 3. The water inlet chamber 1 is provided with a water inlet 4, and the drainage chamber 2 is provided with a drainage outlet 5. The water inlet 4 is set higher than the drainage outlet 5. Both the water inlet chamber 1 and the drainage chamber 2 are located on the outer top surface of the separation chamber 3, and both the water inlet chamber 1 and the drainage chamber 2 are connected to the separation chamber 3 through bottom openings. The water inlet chamber 1 is provided with an overflow side plate 101 extending upward at the bottom opening. The overflow side plate 101 forms an overflow channel 6 near the inner side wall of the separation chamber 3. The drainage chamber 2 is provided with an oil blocking plate 201 at the bottom opening. The top of the oil blocking plate 201 is higher than the bottom surface of the drainage chamber 2, and the bottom end of the oil blocking plate 201 is close to the inner bottom surface of the separation chamber 3. The oil blocking plate 201 forms a drainage channel 7 near the inner side wall of the separation chamber 3. The separation chamber 3 is provided with an openable and closable oil outlet 8 at the top and an openable and closable sludge outlet 9 near the bottom.

[0049] In this embodiment, the under-sink oil-water separator is used such that restaurant wastewater enters the inlet chamber 1 through the inlet 4 and undergoes preliminary oil-water separation after filling the inlet chamber 1. Large particles of residue are trapped inside the inlet chamber 1, while the remaining portion of the restaurant wastewater overflows from the overflow side plate 101. The overflowing wastewater flows into the wider separation chamber 3 after passing through the narrower overflow channel 6, thereby promoting the aggregation of oil droplets through the overflow channel 6 to form larger oil droplets and accelerate the separation process. The restaurant wastewater then enters the separation chamber... After step 3, further oil-water separation is carried out. Since the density of grease is less than that of water, a large number of grease droplets float on the water surface and gather to form an grease layer. Then, the grease on the water surface can be discharged by opening the oil drain port 8. Since the water inlet 4 is designed to be higher than the drain port 5, a height difference is created. Based on the principle of communicating vessels, the water naturally flows out from the drain port 5 under the action of gravity. And because of the existence of the drainage channel 7, the grease cannot be discharged from the drain port 5, thus ensuring oil-water separation. The sludge accumulated in the separation chamber 3 can be discharged from the sludge discharge port 9.

[0050] Obviously, the under-sink oil-water separator in this embodiment can achieve higher oil-water separation efficiency through secondary oil-water separation and the design of overflow channel 6 to promote the aggregation of grease droplets.

[0051] Preferably, see Figures 2 to 4 The water inlet chamber 1 is equipped with a suspension frame 102. The suspension frame 102 forms a water storage space 11 by suspending the coarse slag box 10. The water inlet 4 is located in the water storage space 11. Multiple filter mesh holes 103 are evenly opened on the side plate of the suspension frame 102.

[0052] In actual use, catering wastewater enters the coarse residue box 10 through the inlet 4 and flows out of the water storage space 11 through the filter screen 103 on the side plate of the hanging frame 102. Then it overflows through the overflow side plate 101. During this process, large particles of residue in the catering wastewater are intercepted and stored in the coarse residue box 10. After a period of time, the coarse residue box 10 on the hanging frame 102 can be removed for cleaning, which reduces the cumbersome steps of traditional equipment maintenance.

[0053] Better, see Figure 1 , Figure 2 and Figure 4 In this embodiment, the top opening of the water inlet chamber 1 is sealed and covered by a water inlet chamber cover plate 104. In the working state, the water inlet chamber cover plate 104 covers the top opening of the water inlet chamber 1 to prevent the spread of odor. When it is necessary to remove the coarse slag box 10, the water inlet chamber cover plate 104 can be removed and the coarse slag box 10 can be removed from the top opening of the water inlet chamber 1.

[0054] Further, see Figure 3 and Figure 7 In this embodiment, the coarse residue box 10 has an opening at the top, and a handle 12 is hinged to the top of the coarse residue box 10. Catering wastewater enters the coarse residue box 10 through the top opening, and when it is necessary to remove the coarse residue box 10, it can be lifted by the handle 12 to avoid contact between human hands and large particles of residue.

[0055] Preferably, the drain outlet 5 is located on the side of the drain chamber 2, and the drain outlet 5 is set close to the inner bottom surface of the drain chamber 2. The inner bottom surface of the drain chamber 2 is inclined towards the drain outlet 5 so that the water in the drain chamber 2 can be drained as much as possible.

[0056] Better, see Figure 1 , Figure 2 and Figure 4 In this embodiment, the top opening of the drainage chamber 2 is sealed by a drainage chamber cover 202, which is detachably installed on the top of the drainage chamber 2 via a snap-fit ​​203. Normally, the drainage chamber cover 202 remains installed, but it can be removed when maintenance of the interior of the drainage chamber 2 is required.

[0057] Preferably, see Figure 2 and Figure 4 An oil drain rack 301 is installed on the top of the separation chamber 3 at the oil drain port 8. An oil collection box 13 is suspended from the oil drain rack 301 in the separation chamber 3. The grease discharged from the oil drain port 8 can flow into the oil collection box 13 through the oil drain rack 301. In actual use, the user can directly remove the oil collection box 13 suspended on the separation chamber 3 and complete the grease cleaning and reinstallation within a few minutes, reducing the cumbersome steps in the traditional equipment maintenance process.

[0058] Better, see Figure 1 , Figure 2 and Figure 5 In this embodiment, the oil drain rack 301 is arranged adjacent to the drain chamber 2, the drain chamber cover 202 is covered above the oil drain rack 301, and a pair of slide rails 204 are provided on the drain chamber cover 202. The oil collection box 13 is suspended on the pair of slide rails 204, so that the oil collection box 13 can be removed by pulling it out, which is simple and convenient.

[0059] Further, see Figure 1 , Figure 2 and Figure 8 In this embodiment, the drain tank cover 202 is provided with an oil discharge observation port 205 and an oil collection observation port 206. The oil discharge observation port 205 is located above the oil discharge port 8, and the oil collection observation port 206 is located above the top opening of the oil collection box 13, so that the oil discharge and oil collection situation can be observed in real time to ensure the normal operation of the equipment.

[0060] Preferably, see Figure 2 and Figure 4 The separation chamber 3 has a columnar frame 302 installed at the oil drain port 8. The columnar frame 302 contains a float 303 that can float up and down. The density of the float 303 is between that of water and grease, and the diameter of the float 303 is larger than the diameter of the oil drain port 8, so that the oil drain port 8 can be opened and closed by the up and down movement of the float 303.

[0061] The float structure is designed to ensure that only grease is discharged from the oil drain port 8. The specific principle is as follows: In the initial stage of equipment operation, clean water needs to be filled into the separation chamber 3 through the water inlet 4. At this time, the float 303 floats on the water surface and blocks the oil drain port 8, so that the clean water can only be discharged from the drain port 5. Then, catering wastewater is introduced through the water inlet 4. As the catering wastewater is introduced, the upper layer of the separation chamber 3 is the grease layer and the lower layer is the water layer. At this time, the float 303 automatically sinks to the water layer, and the oil drain port 8 automatically opens to discharge the grease. When the grease is completely discharged, the water layer rises, and the float 303 rises again to block the oil drain port 8.

[0062] Preferably, see Figure 4 and Figure 6One end of the bottom surface of the separation chamber 3 is bent toward the sludge discharge port 9, so that the sludge in the separation chamber 3 can move toward the sludge discharge port 9 and empty the sludge as much as possible.

[0063] Better, see Figure 1 In this embodiment, a ball valve 14 is installed at the sludge discharge port 9. When sludge needs to be discharged, the ball valve 14 is opened and an external sludge pump is connected to achieve sludge discharge through the suction of the sludge pump.

[0064] Preferably, see Figure 1 The separation chamber 3 has adjustable support feet 15 installed at the four corners of its outer bottom surface. In actual use, the height of the water inlet 4, water outlet 5, oil outlet 8, and sludge outlet 9 can be adjusted using the support feet 15 to ensure that the equipment height meets the actual installation requirements on site.

[0065] Preferably, see Figure 1 and Figure 2 An adjustable movable joint (not shown in the figure) is installed at both the inlet 4 and the outlet 5. In actual use, the opening orientation of the movable joint can be adjusted to connect the pipe from various angles to meet the actual installation requirements on site.

[0066] Preferably, see Figure 6 The separation chamber 3 is equipped with a heating component 16. The heating component 16 can heat the oil-water mixture in the separation chamber 3 to ensure that the grease can be smoothly discharged from the oil drain port 8, preventing blockage or excessive grease adhesion to the inner wall of the separation chamber 3.

[0067] Preferably, in this embodiment, the heating component 16 is an electric heating rod.

[0068] Preferably, the under-sink oil-water separator is made entirely of 316 stainless steel. Because 316 stainless steel contains molybdenum, it is more resistant to chloride corrosion and pitting corrosion than 304 or 201 stainless steel. The fact that the under-sink oil-water separator in this embodiment is made entirely of 316 stainless steel ensures the equipment's long lifespan and corrosion resistance, allowing it to withstand the high humidity and grease contamination of the kitchen environment.

[0069] In summary, the under-sink oil-water separator of this utility model has the following advantages:

[0070] (I) Improved Separation Efficiency: Through the secondary oil-water separation design and the special shape of the overflow channel 6, grease droplets are more easily aggregated, resulting in a more obvious separation effect and a significantly increased separation speed. In particular, the automatic oil discharge function allows grease to be discharged quickly, avoiding the problem of excessive grease accumulation in traditional equipment.

[0071] (ii) Simplified cleaning and maintenance: The pull-out oil collection box 13 and the liftable coarse slag box 10 on the equipment make daily maintenance easier, reduce cleaning time and labor intensity, and users can complete daily cleaning in just a few minutes, which greatly improves the efficiency of use.

[0072] (III) Improve equipment stability and service life: Made of 316 stainless steel, it has excellent corrosion resistance and anti-aging properties, which extends the service life of the equipment and reduces failures and maintenance costs caused by corrosion.

[0073] (iv) Enhanced spatial adaptability and installation flexibility: The equipment is compactly designed to adapt to the spatial needs of modern kitchens and is suitable for various kitchen environments, including areas under sinks, dishwashers and water basins, to meet the installation needs of different users.

[0074] (V) Environmental and economic benefits: This equipment can ensure that the separated grease and water are discharged independently, reducing the impact of catering wastewater on the environment. At the same time, it simplifies equipment maintenance, reduces long-term operating costs, and meets the requirements of modern kitchens for environmental protection and energy conservation.

[0075] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A sub-kitchen oil-water separator characterized by, The device comprises a water inlet chamber (1), a water discharge chamber (2) and a separation chamber (3), the water inlet chamber (1) is provided with a water inlet (4), the water discharge chamber (2) is provided with a water discharge outlet (5), the water inlet (4) is higher than the water discharge outlet (5), the water inlet chamber (1) and the water discharge chamber (2) are located on the outer top surface of the separation chamber (3), and the water inlet chamber (1) and the water discharge chamber (2) are communicated with the separation chamber (3) through the bottom opening, the water inlet chamber (1) is provided with an overflow side plate (101) extending to the top at the bottom opening, the overflow side plate (101) forms an overflow channel (6) close to the inner side wall of the separation chamber (3), the water discharge chamber (2) is provided with an oil blocking plate (201) at the bottom opening, the top end of the oil blocking plate (201) is higher than the bottom surface of the water discharge chamber (2), the bottom end of the oil blocking plate (201) is close to the inner bottom surface of the separation chamber (3), and the oil blocking plate (201) forms a water discharge channel (7) close to the inner side wall of the separation chamber (3), the separation chamber (3) is provided with an openable and closable oil discharge outlet (8) at the top and an openable and closable mud discharge outlet (9) close to the bottom.

2. The under-the-counter oil-water separator according to claim 1, characterized in that The water inlet chamber (1) is provided with a hanging rack (102), the hanging rack (102) forms a water storage space (11) by hanging a coarse residue box (10), the water inlet (4) is located in the water storage space (11), and a plurality of filter screen holes (103) are uniformly arranged on the side plate of the hanging rack (102).

3. The under-the-counter oil-water separator of claim 1, wherein, The water discharge outlet (5) is located on the side surface of the water discharge chamber (2), and the water discharge outlet (5) is arranged close to the inner bottom surface of the water discharge chamber (2), and the inner bottom surface of the water discharge chamber (2) is inclined to the water discharge outlet (5).

4. The under-the-counter oil-water separator of claim 1, wherein, The top of the separation chamber (3) is provided with an oil discharge rack (301) at the position of the oil discharge outlet (8), the separation chamber (3) is provided with an oil collecting box (13) hung at the oil discharge rack (301), and the oil discharged at the oil discharge outlet (8) can flow into the oil collecting box (13) through the oil discharge rack (301).

5. The under-the-spout oil-water separator according to claim 1, characterized in that, The separation chamber (3) is provided with a columnar frame (302) at the position of the oil discharge outlet (8), the columnar frame (302) stores a floating ball (303) capable of floating up and down, the density of the floating ball (303) is between that of water and oil, and the diameter of the floating ball (303) is greater than that of the oil discharge outlet (8), so that the oil discharge outlet (8) is opened and closed by the up-and-down floating of the floating ball (303).

6. The under-the-counter oil-water separator of claim 1, wherein, One end of the inner bottom surface of the separation chamber (3) is bent to the position of the mud discharge outlet (9).

7. The under-the-counter oil-water separator of claim 1, wherein, The separation chamber (3) is provided with a height-adjustable foot (15) at each of the four corner positions of the outer bottom surface.

8. The under-the-counter oil-water separator of claim 1, wherein, Angle-adjustable movable joints are respectively arranged at the water inlet (4) and the water discharge outlet (5).

9. The under-the-counter oil-water separator of claim 1, wherein, The separation chamber (3) is provided with a heating assembly (16).

10. The under-the-counter oil-water separator of claim 1, wherein, The whole kitchen-type oil-water separator is made of 316 stainless steel.

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