An oil separation device

Abstract

The utility model discloses an oil liquid separation device, including liquid storage tank, the inside space of liquid storage tank is separated first chamber, second chamber and third chamber through first vertical baffle and second vertical baffle, and the both sides edge of baffle is respectively rested in the inner wall of water storage tank, and the lower edge between first vertical baffle and the bottom wall of liquid storage tank has the overflow channel that can supply liquid to flow, and liquid storage tank has liquid inlet and liquid outlet, and liquid inlet is located the top of overflow channel, and the lower edge of second vertical baffle is rested in the bottom wall of water storage tank. In this way, waste liquid enters liquid storage tank and realizes oil liquid delamination by the density difference of oil and water, and then the liquid of lower layer passes through overflow channel, through second chamber and third chamber, and flows out from liquid outlet, and the upper layer oil is blocked by first vertical baffle and avoids flowing into subsequent chamber. In this way, without pump body, filter screen and other power or vulnerable components, energy consumption and failure risk are reduced, and the operation process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machines, specifically to an oil-liquid separation device. Background Technology

[0002] In industrial cleaning and parts surface treatment, cleaning machines are widely used to remove oil and impurities from workpiece surfaces, generating a large amount of oily waste liquid during the cleaning process. Direct discharge of this waste liquid not only wastes water resources but also pollutes the environment due to its oil content. If it is necessary to recover the clean liquid (such as water) for recycling or to centrally treat the waste oil, the oil in the waste liquid must first be effectively separated.

[0003] Currently, oil separation in cleaning machine wastewater is mostly achieved through centrifugal separation or filter filtration. Centrifugal separation equipment requires a power unit, resulting in high energy consumption, complex structure, and high maintenance costs. Filter filtration is prone to clogging due to oil buildup, requiring frequent filter replacements, which not only increases consumable costs but also affects the continuity of separation. The applicant has proposed an oil separation device with a simple structure, requiring no additional power, and providing stable separation results. Utility Model Content

[0004] Based on this, and in response to the aforementioned technical problems, this utility model provides an oil-liquid separation device.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] An oil-liquid separation device, connected to the cleaning tank of a cleaning machine, is used to recover and separate waste liquid after cleaning. It includes a storage tank, in which the internal space is divided into a first chamber, a second chamber, and a third chamber by a first vertical partition and a second vertical partition spaced at intervals. The two side edges of the first and second vertical partitions abut against the inner wall of the storage tank and are sealed to it. The upper edge of the first vertical partition extends upwards near the top of the storage tank, and its lower edge has an interval between it and the bottom wall of the storage tank, forming a flow channel for liquid to pass through. The side of the storage tank has an inlet communicating with the first chamber, and the inlet is positioned higher than the flow channel. The lower edge of the second vertical partition abuts against the bottom wall of the storage tank and is sealed to it, while its upper edge extends upwards to a position two-thirds of the way up the storage tank. The bottom of the storage tank also has an outlet communicating with the third chamber.

[0007] Using the above technical solution, the storage tank is divided into three chambers. In the first chamber, the inlet is higher than the flow channel. This allows the waste liquid to separate into layers based on the density difference between oil and water. Oil, being less dense, is on top, while water, being denser, is on the bottom. The water in the lower layer then flows through the flow channel into the second chamber, preventing the upper layer of floating oil from directly flowing into subsequent chambers. This method relies entirely on the density difference and liquid level difference between oil and water for separation, eliminating the need for pumps, filters, or other power or easily damaged components, thus reducing energy consumption and the risk of failure, while simplifying the operation. Furthermore, the two sides of the first and second vertical partitions are sealed to the inner wall of the storage tank, and the lower edge of the second vertical partition is sealed to the bottom wall. This ensures that the liquid flows only along a predetermined path: first chamber, through the flow channel, second chamber, the upper edge of the second partition, and into the third chamber. This prevents direct leakage of waste liquid between chambers and guarantees the stability of the separation. Furthermore, the oil-liquid separation device is connected to the cleaning tank, which allows for the recovery of waste liquid after cleaning and the separation of clean water. The separated clean water can be recycled for the cleaning process, reducing water waste. At the same time, the separated waste oil can be centrally recycled and treated, reducing environmental pollution caused by direct discharge of waste liquid.

[0008] In a specific embodiment of this utility model: the height of the flow channel is 2cm-5cm.

[0009] In a specific embodiment of this utility model: the inlet of the liquid storage tank is connected to the outlet at the bottom of the cleaning tank through a pipeline, and the outlet of the liquid storage tank is connected to the inlet at the top of the cleaning tank through a pipeline and a water pump. Valves are connected to both the inlet and outlet of the liquid storage tank.

[0010] In a specific embodiment of this utility model: the side of the water storage tank is provided with a water inlet communicating with the third chamber. The water inlet is positioned higher than the upper edge of the second vertical partition, and a float valve is connected to the water inlet to control the entry of clean water into the third chamber. With this structure, the liquid in the cleaning tank gradually evaporates due to high temperature, and a certain liquid level needs to be maintained in the cleaning tank to ensure the normal operation of the entire equipment. Thus, the cleaning tank and the storage tank are connected, and a float valve is installed in the third chamber to monitor the liquid level in real time. When the liquid level in the third chamber falls below the set height due to evaporation, the float valve is triggered and opens, and clean water automatically replenishes the third chamber through the water inlet; after the liquid level rises back to the set height, the float valve closes, stopping the replenishment. This allows for precise and real-time replenishment, avoiding frequent manual checks and replenishment, and improving the automation level of equipment operation.

[0011] In summary, the liquid storage tank of this invention is divided into three chambers by first and second vertical partitions. In the first chamber, the inlet is located above the flow channel. After the waste liquid enters, it naturally separates into layers due to the density difference between oil and water. The lower layer of liquid enters the second chamber through the flow channel, while the upper layer of floating oil is blocked by the first vertical partition, preventing the floating oil from mixing into subsequent processes. This eliminates the need for power components or vulnerable parts such as pumps and filters, reducing energy consumption and the risk of failure. The waste liquid after cleaning enters the storage tank for separation through the inlet. The separated clean water flows back to the cleaning tank for recycling from the outlet of the third chamber via a water pump, significantly reducing water consumption. At the same time, the separated waste oil can be centrally recycled and treated, avoiding environmental pollution caused by direct discharge of waste liquid. In addition, the float valve can monitor the liquid level in real time and automatically compensate for evaporation loss: when the liquid level drops below the set height due to evaporation during the cleaning process, the float valve is triggered to open and replenish water. It automatically closes after the liquid level recovers, eliminating the need for frequent manual checks and operations. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of an oil-liquid separation device according to the present invention;

[0014] Figure 2 This is a top view of the oil-liquid separation device of this utility model;

[0015] Figure 3 This is a perspective view of the oil-liquid separation device of this utility model. Detailed Implementation

[0016] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3As shown, this utility model is an oil-liquid separation device, connected to the cleaning tank of a cleaning machine for recovering and separating waste liquid after cleaning, including a storage tank 10. The storage tank 10 is divided into a first chamber 101, a second chamber 102, and a third chamber 103 by a first vertical partition 11 and a second vertical partition 12 spaced apart. The two side edges of the first vertical partition 11 and the second vertical partition 12 respectively abut against the inner wall of the storage tank 10 and are sealed to it. Furthermore, the upper edge of the first vertical partition 11 extends upward near the top of the storage tank 10, and its lower edge forms a flow channel 104 between itself and the bottom wall of the storage tank 10, allowing liquid to flow through. An inlet 13 communicating with the first chamber 101 is provided on the side of the storage tank 10. The position of the inlet 13 is higher than the position of the flow channel 104. The lower edge of the second vertical partition 12 abuts against the bottom wall of the water storage tank 10 and is sealed to the bottom wall of the water storage tank 10. The upper edge extends upward to 2 / 3 of the height inside the liquid storage tank 10. At the bottom of the liquid storage tank 10, there is also a liquid outlet 14 communicating with the third chamber 103.

[0018] In this way, the storage tank 10 is divided into three chambers by two partitions. In the first chamber 101, the inlet 13 is located above the flow channel 104, and the outlet 14 is located at the bottom side of the third chamber 103. When the waste liquid enters the first chamber 101 through the inlet 13, the oil and water naturally separate due to their density difference. The oil, with its lower density, is located on the upper layer, while the water, with its higher density, is located on the lower layer. Subsequently, the water in the lower layer enters the second chamber 102 through the flow channel 104. As the water gradually increases and overflows the upper edge of the second partition 12, it enters the third chamber 103 and finally flows back to the cleaning tank through the bottom outlet 14. The floating oil on the upper layer is blocked by the upper part of the first vertical partition, preventing it from flowing into subsequent chambers. This structure relies on the density difference and liquid level difference between oil and water for separation. The entire separation process does not require pumps, filters, or other power or easily damaged parts, reducing energy consumption and failure risks, and simplifying the operation process. Secondly, the two sides of the two vertical baffles are sealed to the inner wall of the storage tank, and the lower edge of the second vertical baffle 12 is sealed to the bottom wall. This ensures that the separated liquid can only flow along the preset path of the first chamber, through the flow channel, the second chamber, the upper edge of the second baffle, and into the third chamber, preventing unseparated waste liquid from leaking between chambers and ensuring the stability of the separation. Furthermore, the oil-liquid separation device is connected to the cleaning tank, which can recover the waste liquid after cleaning and separate the clean water. The separated clean water is recycled for the cleaning process, reducing water waste. At the same time, the separated waste oil can be centrally recycled and treated, reducing environmental pollution caused by direct discharge of waste liquid.

[0019] like Figure 1 As shown, the storage tank 10 has a waste oil outlet 105 on its side that communicates with the first chamber.

[0020] like Figure 3 As shown, in this embodiment, the height of the flow channel 104 is 2cm-5cm.

[0021] In this embodiment, the inlet 13 of the storage tank 10 is connected to the outlet at the bottom of the cleaning tank via a pipeline. The outlet 14 of the storage tank 10 is connected to the inlet at the top of the cleaning tank via a pipeline and a water pump. Valves are connected to both the inlet 11 and the outlet 12 of the storage tank 10. In this way, a closed loop is formed between the cleaning tank and the storage tank.

[0022] like Figure 2 and Figure 3 As shown, in this embodiment, a water inlet 21 communicating with the third chamber 103 is provided on the side of the storage tank 10. The position of the water inlet 21 is higher than the upper edge of the second vertical partition 12. A float valve 22 is connected to the water inlet to control the entry of clean water into the third chamber 103. During the product cleaning process, the liquid in the cleaning tank will gradually be lost due to high-temperature evaporation, and a certain liquid level needs to be maintained in the cleaning tank to ensure the normal operation of the entire equipment. Thus, the cleaning tank is connected to the storage tank 10, and the liquid level is monitored in real time by the float valve 22 in the third chamber 103. When the liquid level in the third chamber 103 falls below the set height due to evaporation, the float valve 22 is triggered to open, and clean water is automatically replenished into the third chamber through the water inlet 21; after the liquid level rises back to the set height, the float valve closes, and the replenishment stops. In this way, the liquid can be replenished accurately and in real time, avoiding frequent manual checks and replenishment, and improving the automation level of equipment operation. Float valves are existing technology and can be purchased directly from the market, so they will not be discussed in detail here.

[0023] The above describes an oil-liquid separation device of this utility model. After the oily waste liquid in the cleaning tank of the cleaning machine has finished cleaning the product, it will be transported through the outlet at the bottom of the cleaning tank and the pipeline to the inlet 13 of the storage tank 10, and enter the first chamber 101. Since the inlet 13 is located above the flow channel 104 below the first vertical partition, the waste liquid in the first chamber will naturally separate into layers due to the density difference between oil and water. The less dense oil will float on the upper layer, and the more dense water will sink to the lower layer. The floating oil on the upper layer will be blocked by the first vertical partition and will not be able to enter the subsequent chambers. The liquid in the lower layer will flow into the second chamber 102 through the flow channel 104. When the water in the second chamber 102 gradually increases and overflows the upper edge of the second partition 12, it will enter the third chamber 103 and be transported through the outlet 14 at the bottom, the pipeline and the water pump to the inlet at the top of the cleaning tank, and then flow back into the cleaning tank for reuse in the cleaning process, forming a closed loop between the cleaning tank and the storage tank. During the circulation process, the liquid evaporates and is lost due to factors such as the high temperature during cleaning, causing the liquid level in the storage tank and cleaning tank to drop. When the liquid level in the third chamber is lower than the preset level, the float valve located at that position is triggered to open, and external clean water is automatically replenished into the third chamber 103 through the water inlet 21; after the liquid level rises back to the set height, the float valve closes, stopping the replenishment and preventing equipment failure caused by liquid level fluctuations.

[0024] In summary, the liquid storage tank of this invention is divided into three chambers by first and second vertical partitions. In the first chamber, the inlet is located above the flow channel. After the waste liquid enters, it naturally separates into layers due to the density difference between oil and water. The lower layer of liquid enters the second chamber through the flow channel, while the upper layer of floating oil is blocked by the first vertical partition, preventing floating oil from mixing into subsequent processes. This eliminates the need for power components or vulnerable parts such as pumps and filters, reducing energy consumption and the risk of failure. The waste liquid after cleaning enters the storage tank for separation through the inlet. The separated clean water flows back to the cleaning tank for recycling from the outlet of the third chamber via a water pump, significantly reducing water consumption. At the same time, the separated waste oil can be centrally recycled and treated, avoiding environmental pollution caused by direct discharge of waste liquid. In addition, the liquid level is monitored in real time by a float valve, and evaporation loss is automatically compensated: when the liquid level drops below the set height due to evaporation during the cleaning process, the float valve is triggered to open and replenish water. It automatically closes after the liquid level recovers, eliminating the need for frequent manual checks and operations.

[0025] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. An oil-liquid separation device, connected to the cleaning tank of a cleaning machine for recovering and separating waste liquid after cleaning, characterized in that, The system includes a liquid storage tank. The internal space of the liquid storage tank is divided into a first chamber, a second chamber, and a third chamber by a first vertical partition and a second vertical partition spaced at intervals. The two side edges of the first and second vertical partitions abut against the inner wall of the liquid storage tank and are sealed to it. The upper edge of the first vertical partition extends upwards near the top of the liquid storage tank, and its lower edge has an interval between it and the bottom wall of the liquid storage tank to form a flow channel for liquid to pass through. The side of the liquid storage tank has an inlet communicating with the first chamber, and the inlet is positioned higher than the flow channel. The lower edge of the second vertical partition abuts against the bottom wall of the liquid storage tank and is sealed to it, while its upper edge extends upwards to a position two-thirds of the way up the liquid storage tank. The bottom of the liquid storage tank also has an outlet communicating with the third chamber.

2. The oil-liquid separation device according to claim 1, characterized in that, The height of the flow channel is 2cm-5cm.

3. The oil-liquid separation device according to claim 1, characterized in that, The inlet of the storage tank is connected to the outlet at the bottom of the cleaning tank via a pipeline, and the outlet of the storage tank is connected to the inlet at the top of the cleaning tank via a pipeline and a water pump. Valves are connected to both the inlet and outlet of the storage tank.

4. The oil-liquid separation device according to claim 1, characterized in that, The side of the storage tank has a waste oil outlet that communicates with the first chamber.

5. The oil-liquid separation device according to claim 1, characterized in that, The water storage tank is provided with a water inlet on its side that communicates with the third chamber. The water inlet is located above the upper edge of the second vertical partition. A float valve is connected to the water inlet to control the flow of clean water into the third chamber.

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