Oil-water separation device, management system and use method of oil-water separation device

Abstract

The invention relates to the field of kitchen waste oil recovery, in particular to an oil-water separation device, a management system and a use method of the oil-water separation device. According to the device, a device body is divided into a liquid inlet chamber, a buffer chamber, an oil discharge chamber and a water discharge chamber through a first partition plate, a second partition plate and a third partition plate, the oil-water conductivity difference is detected through an oil-water detection module, a centralized control module, an electric valve and the like by using electrodes, and an oil discharge pipe is automatically opened and closed. The management system integrates an Internet of Things module, a block chain technology and a digital management and control platform, collects weight data of the oil storage container in real time, and automatically triggers a recovery request in combination with an intelligent contract; the digital management and control platform calls a built-in device to bind a device ID and a geographic position coordinate and then write the device ID and the geographic position coordinate into a block chain, a distributed database stores full-life-cycle traceability information, and real-time checking of catering units, precise operation of recovery enterprises and efficient auditing of supervision departments are supported. According to the invention, oil-water separation automation and data credibility are realized, and illegal cooking oil backflow is blocked from the source.

Description

Technical Field

[0001] The present invention relates to the field of waste cooking oil recovery, and in particular to an oil-water separation device, a management system and a use method thereof. Background Art

[0002] The current oil pollution treatment sector in the catering and related industries faces numerous urgent technical challenges and practical difficulties. For one thing, the annual production of waste cooking oil exceeds 10 million tons, but the recovery rate using traditional manual methods is less than 10%. A large amount of waste cooking oil is not effectively recycled, resulting in not only a waste of resources but also frequent pipe blockages. Annual treatment costs exceed 100 million yuan, increasing operational costs and environmental pressures.

[0003] On the other hand, traditional grease traps only partially isolate grease during oil treatment and lack solid-liquid separation capabilities. Oil and residue easily accumulate and clog the trap, resulting in an oil-water separation rate of less than 50%, making it difficult to meet drainage standards. Waste oil and residue rely on manual salvage, making equipment cleaning difficult and maintenance costs high. Furthermore, the inability to recycle resources results in significant waste and easily triggers secondary pollution, impacting environmental hygiene. Furthermore, relevant departments struggle to fully oversee the oil treatment process.

[0004] In summary, the existing technology has many shortcomings in the oil recovery and treatment process, such as low recovery rate, poor separation efficiency, serious resource waste, high maintenance cost and difficult supervision. Those skilled in the art are in urgent need of a reliable device to improve the efficiency of oil treatment, realize the effective utilization of resources, and reduce environmental pollution and governance costs. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides an oil-water separation device, comprising: a device body, in which a first partition plate, a second partition plate and a third partition plate are provided, The first partition plate divides the device body into a first space and a second space, and an overflow port is provided above the first partition plate so that the first space and the second space are in communication; A second partition plate is provided in the first space to divide the first space into a liquid inlet chamber and a buffer chamber, the liquid inlet chamber is provided with a liquid inlet, and an opening is provided above the second partition plate so that water in the liquid inlet chamber flows into the buffer chamber through the opening; The third partition plate divides the second space into an oil drain chamber and a water drain chamber. An oil drain pipe is provided above the oil drain chamber, and a water drain pipe is provided above the water drain chamber. The third partition plate is connected to the side wall of the first partition plate and the side wall of the second space respectively, and a gap is set between the bottom of the third partition plate and the bottom of the second space so that the oil drain chamber and the water drain chamber are in communication. An oil-water detection module is provided above the oil drain chamber and includes at least one electrode in contact with the liquid medium; A centralized control module, whose signal input terminal is electrically connected to the signal output terminal of the oil-water detection module and can generate a control signal according to the conduction state of the electrode; The electric valve is installed on the oil drain pipe, and its signal input end is connected to the signal output end of the centralized control module, and is used to receive the control signal to execute the opening and closing action of the oil drain pipe; An oil storage container is provided below the oil drain pipe, and a weight detector is provided below the oil storage container.

[0006] On the basis of the above scheme, further, the weight detector is provided with an alarm device, and the alarm device is electrically connected to the centralized control module; when the oil weight detected by the weight detector exceeds a preset threshold, the centralized control module triggers the alarm device to send an alarm signal.

[0007] On the basis of the above solution, further, the electrode is fixedly mounted on the electrode mounting plate above the oil drain chamber, and a vibration cleaning module is provided inside the electrode mounting plate, and the vibration cleaning module is electrically connected to the centralized control module; The electrodes include a first electrode and a second electrode, both of which are in direct contact with the liquid to form a conductive loop; or the electrode is a single electrode that is indirectly conductive with the liquid via grounding.

[0008] On the basis of the above solution, further, a detachable filter screen is provided above the liquid inlet chamber.

[0009] On the basis of the above solution, further, a heating rod is provided above the oil drain chamber, and the heating rod is electrically connected to the centralized control module.

[0010] On the basis of the above solution, further, the second partition plate is respectively connected to the side wall of the first partition plate and the side wall of the first space; an opening is provided above the second partition plate, and a guide pipe is provided at the opening; the guide pipe is attached to the second partition plate and is perpendicular to the first partition plate in the horizontal space, so that water flows out of the guide pipe through the opening and flows along the side wall of the second partition plate and the side wall of the first partition plate to the overflow port in sequence; Or the second partition plate is respectively connected to the two side walls of the first space and is parallel to the first partition plate. An opening is provided above the second partition plate, and the opening is provided at one end away from the overflow port, so that water flows in from the liquid inlet, flows out through the opening, and then flows along the side walls of the first space and the side walls of the first partition plate to the overflow port in turn.

[0011] On the basis of the above scheme, it further includes a third space, one end of the oil drain pipe is located in the oil drain chamber, and the other end is located in the third space; one end of the drainage pipe is located in the drainage chamber, and the other end is located in the third space and passes through the third space to communicate with the outside; an inclined plate is provided below one end of the drainage pipe located in the drainage chamber.

[0012] On the basis of the above solution, further comprising a reverse water valve respectively provided below the first partition plate and the second partition plate, and a clean water pipe provided below the liquid inlet chamber, the clean water pipe being in communication with the outside; When the reverse water valve is opened, water flows from the second space through the buffer chamber, flows to the liquid inlet chamber, and is discharged through the clean water pipe.

[0013] The present invention further provides an oil-water separation management system, comprising: an oil-water separation device, wherein the oil-water separation device is the oil-water separation device described above; An Internet of Things module, integrated into the weight detector, is used to collect waste oil weight data from the oil storage container in real time and upload it to a cloud server; The blockchain module is deployed in the cloud server and is used to receive the waste oil weight data of the oil storage container, generate a hash value containing the timestamp, device ID, and waste oil weight value, and write the data into the blockchain network; Smart contracts, deployed on the blockchain network, are used to automatically trigger recycling requests based on the waste oil weight threshold of the oil storage container; A digital management and control platform, including a mini-program or monitoring app, interacts with the blockchain module to display real-time oil volume data and geographic location information, and interacts with the blockchain network to verify data authenticity; The geographic location binding module is implemented through the digital management and control platform. When the device is deployed, the user scans the device code or manually enters the device ID through the mini program or monitoring APP; the mini program or monitoring APP calls the built-in positioning function of the mobile phone to automatically obtain the store's geographic location, or supports users to manually enter the store address; the obtained geographic location coordinates are bound to the device ID and written to the blockchain network through the blockchain module; the distributed database stores waste oil collection and transportation management data and full life cycle traceability information based on the blockchain network to ensure that the data cannot be tampered with.

[0014] On the basis of the above solution, the digital management and control platform further supports multi-role authority management: Catering units can view waste oil weight data and operation and maintenance requests for their oil-water separation devices; Recycling companies can submit transportation plans, update processing status and sign blockchain joint orders; Regulatory authorities can conduct full-link data audits, anomaly tracing and compliance checks.

[0015] The present invention also provides a method for using the oil-water separation management system as described above, comprising the following steps: S1. Install the oil-water separator in the kitchen area, ensuring the liquid inlet is connected to the wastewater pipe of the stove, and pre-set the waste oil weight threshold of the oil storage container; S2. Open the digital management and control platform, scan the device code of the oil-water separation device or manually enter the device ID; use the mobile phone's built-in positioning function to automatically obtain the current store's geographic location, or manually enter the detailed address; bind the device ID to the geographic location coordinates and write them into the blockchain network through the blockchain module; S3. The oil-water separation device is operated, and the weight detector monitors the weight of the waste oil in the oil storage container in real time. The IoT module uploads the weight data to the cloud server via the wireless network. After receiving the data, the blockchain module generates a hash value containing the timestamp, device ID, and waste oil weight, and writes it to the blockchain network. S4. When it is detected that the weight of waste oil exceeds the threshold, the smart contract automatically sends a recycling request to the digital management and control platform, and the recycling request is simultaneously pushed to the relevant recycling companies and regulatory authorities; S5. Recycling companies receive tasks through the digital management and control platform and collect waste oil at designated locations based on their bound geographic locations. Once the waste oil arrives at a legal treatment plant, the plant updates its status through the digital management and control platform. The blockchain records the transportation route, handover time, and treatment results, forming a full lifecycle traceability chain. S6. Catering units can check the real-time waste oil inventory and recycling progress through the digital management and control platform; regulatory authorities can retrieve the full-link data in the blockchain through the digital management and control platform to conduct compliance checks.

[0016] Compared with the prior art, the oil-water separation device, management system and method of use provided by the present invention have the following beneficial effects: The oil-water separation device rationally divides the device body into multiple areas such as a liquid inlet chamber, a buffer chamber, an oil discharge chamber and a drainage chamber through the first partition plate, the second partition plate and the third partition plate. The liquid inlet chamber is connected with the buffer chamber through a guide pipe, and cooperates with the overflow port above the first partition plate to realize spatial communication, so that the water flow transitions stably. The gap between the bottom of the third partition plate and the bottom of the second space is set to ensure that the oil discharge chamber and the drainage chamber are connected. Combined with the oil-water detection module arranged above the oil discharge chamber, the oil and water status is monitored in real time. The control signal generated by the centralized control module accurately controls the electric valve to execute the opening and closing action of the oil discharge pipe, which can effectively realize the intelligent control of the oil-water separation process, avoid oil when draining water, and improve the efficiency and accuracy of oil-water separation. At the same time, the structural design of the connection between each partition plate ensures a smooth process, reduces the risk of blockage, and facilitates maintenance, thereby improving the practicality and reliability of the device as a whole.

[0017] The oil-water separation management system uses the Internet of Things module to collect waste oil weight data from oil storage containers in real time, and combines it with the blockchain module to generate a hash value containing timestamp, device ID and weight value and write it into the blockchain network to ensure that the data cannot be tampered with and is traceable throughout the process; the smart contract automatically triggers the recycling request based on the preset waste oil weight threshold, realizing automated management and control of the entire process from monitoring to recycling, reducing manual intervention and improving response efficiency; the digital management and control platform calls the built-in positioning function or manually enters the address, binds the device ID to the geographic location coordinates and writes it to the blockchain, which not only simplifies hardware configuration and reduces deployment costs, but also ensures the authenticity and auditability of geographic information; the distributed database relies on blockchain technology to store full-link traceability information, providing regulatory authorities with a credible audit basis, ensuring food safety from the source and promoting the resource utilization of waste oil, with both environmental benefits and social governance value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the oil-water separation device provided by the present invention; Figure 2 A schematic three-dimensional diagram of the internal structure of the oil-water separation device according to Example 1 of the present invention; Figure 3 A front view of the internal structure of the oil-water separation device provided by the present invention; Figure 4 A right view of the internal structure of the oil-water separation device of Example 1 of the present invention; Figure 5 This is a schematic three-dimensional diagram of the internal structure of the oil-water separation device of Example 2 provided by the present invention.

[0020] Reference numerals: 10-device body; 11-first partition plate; 12-second partition plate; 13-third partition plate; 20-liquid inlet chamber; 21-liquid inlet; 22-filter; 23-opening; 30- buffer chamber; 31- overflow port; 32- diversion pipe; 33- backflow valve; 34- slow flow plate; 40- oil drain chamber; 41- oil drain pipe; 42- electric valve; 43- heating rod; 50-drainage chamber; 51-drainage pipe; 52-inclined plate; 60- oil-water detection module; 61- first electrode; 62- second electrode; 63- electrode mounting plate; 70-centralized control module; 80-Oil storage container; 81-Weight detector; 82-Water purification pipe. DETAILED DESCRIPTION

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In order to solve the problems of low recovery rate, poor separation efficiency, serious waste of resources, high maintenance cost and insufficient supervision in the existing technology during oil recovery and treatment, the present invention provides a Figure 1-4 Example 1 and Figure 1 、 3 and the water-oil separation device, management system, and method of use thereof of embodiment 2 of 5.

[0024] like Figure 1-5 As shown, the oil-water separation device comprises: a device body 10, in which a first partition plate 11, a second partition plate 12 and a third partition plate 13 are provided. The first partition plate 11 divides the device body 10 into a first space and a second space. An overflow port 31 is provided above the first partition plate 11, so that the first space and the second space are connected. A second partition plate 12 is provided in the first space, dividing the first space into a liquid inlet chamber 20 and a buffer chamber 30. The liquid inlet chamber 20 is provided with a liquid inlet 21; an opening 23 is provided above the second partition plate 12, so that the water flow in the liquid inlet chamber 20 flows into the buffer chamber 30 through the opening 23 in sequence; The third partition plate 13 divides the second space into an oil drain chamber 40 and a water drain chamber 50. An oil drain pipe 41 is provided above the oil drain chamber 40, and a water drain pipe 51 is provided above the water drain chamber 50. The third partition plate 13 is connected to the side wall of the first partition plate 11 and the side wall of the second space, respectively. A gap is provided between the bottom of the third partition plate 13 and the bottom of the second space, so that the oil drain chamber 40 and the water drain chamber 50 are in communication. The oil-water detection module 60 is provided above the oil drain chamber 40 and includes at least one electrode in contact with the liquid medium; The centralized control module 70 has a signal input terminal electrically connected to the signal output terminal of the oil-water detection module 60 and can generate a control signal according to the conduction state between the electrodes; The electric valve 42 is provided on the oil drain pipe 41, and its signal input end is connected to the signal output end of the centralized control module 70, and is used to receive the control signal to execute the opening and closing action of the oil drain pipe 41; An oil storage container 80 is provided below the oil drain pipe 41 , and a weight detector 81 is provided below the oil storage container 80 .

[0025] Specifically, when in use, the oil-water mixture first enters the liquid inlet chamber 20 in the first space through the liquid inlet 21, and then slowly flows into the buffer chamber 30 through the opening 23 above the second partition plate 12 and the guide pipe 32. The setting of the guide pipe 32 can slow down the flow rate and promote the initial stratification of the oil-water mixture. The oil phase gradually floats to the top of the buffer chamber 30 due to its lower density, and the water phase sinks to the bottom. The oil layer in the buffer chamber 30 flows into the oil drain chamber 40 through the overflow port 31 above the first partition plate 11, while the water layer flows into the drain chamber 50 through the gap at the bottom of the third partition plate 13. In the oil-water detection module 60 located above the oil drain chamber 40, the first electrode 61 and the second electrode 62 contact the oil layer or the water layer. Due to the difference in conductivity between the electrodes (oil is a non-conductor and water is a conductor), the conductive state changes, triggering the centralized control module 70 to generate a control signal. When the first electrode 61 and the second electrode 62 contact the oil layer at the same time, or one of the electrodes contacts the oil layer and the other electrode is grounded, the first electrode 61 and the second electrode 62 are not conductive at this time, and a signal is given to the centralized control module 70. After processing, the centralized control module 70 outputs an electrical signal to control the electric valve 42 to open, open the oil drain pipe 41, and discharge the oil; if the water level in the oil drain chamber 40 is high, when the first electrode 61 and the second electrode 62 contact the water layer at the same time, or one of the electrodes contacts the water layer and the other electrode is grounded, the first electrode 61 and the second electrode 62 are conductive, and a signal is given to the centralized control module 70. After processing, the centralized control module 70 outputs an electrical signal to control the electric valve 42 to close, and the oil drain pipe 41 to close, completing an oil drainage cycle; when the water layer enters the drainage chamber 50 through the bottom gap and is gradually discharged through the drain pipe 51, the electrodes contact the oil layer again and the above operation is repeated.

[0026] Preferably, the liquid inlet 21 can be connected to multiple integrated stoves, so that a set of oil-water separation devices can centrally process the oily wastewater generated by multiple stoves. It is particularly suitable for large-scale catering venues, avoiding the need to configure equipment for each stove separately, effectively reducing the purchase cost and installation space requirements; multiple stoves integrated into one oil-water separation device can also effectively improve the cleanliness of the kitchen environment and improve space utilization.

[0027] It should be noted that a gap is set between the bottom of the third partition plate 13 and the bottom of the second space so that the oil drain chamber 40 and the drainage chamber 50 are connected. The height of the gap can be adjusted according to actual needs. When the device is integrated with multiple stoves, the gap height can be increased to facilitate rapid drainage of water and oil.

[0028] In one embodiment, the weight detector 81 is provided with an alarm device, which is electrically connected to the centralized control module 70; when the oil weight detected by the weight detector 81 exceeds a preset threshold, the centralized control module 70 triggers the alarm device to send an alarm signal.

[0029] With the above solution, when the weight of the oil in the oil storage container 80 exceeds a preset threshold, the weight detector 81 sends a signal to the centralized control module 70; the centralized control module 70 can trigger an audible and visual alarm device such as a buzzer and indicator light to remind the user to deal with it in time.

[0030] In one embodiment, if Figure 4 As shown, the electrode is fixedly mounted on the electrode mounting plate above the oil drain chamber, and a vibration cleaning module is provided inside the electrode mounting plate. The vibration cleaning module is electrically connected to the centralized control module 70; The electrodes include a first electrode 61 and a second electrode 62, both of which are in direct contact with the liquid to form a conductive loop; Alternatively, the electrode is a single electrode, which is indirectly connected to the liquid via grounding.

[0031] Specifically, during use, when the electrode contacts the oil layer, the vibration cleaning module starts to vibrate to prevent the oil layer from adhering to the electrode and affecting the detection accuracy; when the electrode contacts the water layer, the vibration cleaning module stops vibrating.

[0032] In one embodiment, if Figure 2 As shown, a detachable filter screen 22 is provided above the liquid inlet chamber 20 .

[0033] With the above solution, when the oil-water mixture enters the liquid inlet chamber 20, the removable filter 22 intercepts solid impurities such as food residues to prevent impurities from entering the recovered oil and water; the user can also regularly remove the filter 22 for cleaning or replacement.

[0034] Preferably, the liquid inlet 21 is arranged above the filter screen 22 .

[0035] In one embodiment, if Figure 2 As shown, a heating rod 43 is provided above the oil drain chamber 40 , and the heating rod 43 is electrically connected to the centralized control module 70 .

[0036] Specifically, when the ambient temperature is low or when animal fat needs to be separated, the centralized control module 70 activates the heating rod 43 to heat the oil in the oil drain chamber 40 to prevent the fat from solidifying.

[0037] Preferably, the heating temperature of the heating rod 43 can be set and adjusted in real time through the centralized control module 70 .

[0038] In Example 1, Figure 2 As shown, the second partition plate 12 is respectively connected to the side wall of the first partition plate 11 and the side wall of the first space; an opening 23 is provided above the second partition plate 12, and a guide tube 32 is provided at the opening 23; the guide tube is attached to the second partition plate 12 and is perpendicular to the first partition plate 11 in the horizontal space, so that water flows out of the guide tube 32 through the opening 23 and then flows along the side wall of the second partition plate 12 and the side wall of the first partition plate 11 to the overflow port 31 in turn.

[0039] Preferably, a flow control plate 34 is provided below the opening 23 .

[0040] like Figure 2 As shown, the arrows indicate the direction of water flow during use of Example 1 of the device.

[0041] By adopting the above solution, the flow path is extended by the vertical arrangement of the flow guide pipe 32, thereby promoting the natural stratification of oil and water.

[0042] In Example 2, Figure 5 As shown, the second partition plate 12 is respectively connected to the two side walls of the first space and is parallel to the first partition plate 11. An opening 23 is provided above the second partition plate 12. The opening 23 is provided at one end away from the overflow port 31, so that water flows in from the liquid inlet 21, flows out through the opening 23, and then flows along the side walls of the first space and the side walls of the first partition plate 11 to the overflow port 31 in turn.

[0043] like Figure 5 As shown, the arrows indicate the direction of water flow during use of Example 2 of the device.

[0044] By adopting the above solution, the flow path is extended by arranging the opening 23 at the end away from the overflow port 31, thereby promoting the natural stratification of oil and water.

[0045] It should be noted that Figure 5 The remaining structures not shown in Example 2 can be referred to Figure 2 .

[0046] In one embodiment, if Figure 2 As shown, a third space is also included. One end of the oil drain pipe 41 is located in the oil drain chamber 40, and the other end is located in the third space. One end of the drain pipe 51 is located in the drain chamber 50, and the other end is located in the third space and passes through the third space to communicate with the outside. An inclined plate 52 is provided below one end of the drainage pipe 51 located in the drainage chamber 50 .

[0047] Using the above solution, an inclined plate 52 is set under the drain pipe 51 for the purpose of controlling the water level. The inclined plate 52 is equivalent to a "weir" structure that can adjust the water flow. When the water level in the device rises, the water gradually overflows the surface of the inclined plate 52 and flows into the drain pipe 51 for discharge.

[0048] In one embodiment, if Figure 2 and Figure 4 As shown, it also includes a reverse water valve 33 respectively provided below the first partition plate 11 and the second partition plate 12, and a clean water pipe 82 provided below the liquid inlet chamber 20, the clean water pipe 82 being connected to the outside; When the reverse water valve 33 is opened, water flows from the second space through the buffer chamber 30 , flows to the liquid inlet chamber 20 , and is discharged through the clean water pipe 82 .

[0049] With the above solution, when the device needs to be drained or the system needs to be cleaned, the reverse water valve 33 can be opened to flush the pipes with reverse water flow to remove internal sediments, and finally the water in the device can be discharged through the clean water pipe 82.

[0050] The oil-water separation device adopts physical oil-water separation technology, does not require power devices and chemical additives, and is environmentally friendly and energy-saving; the automated design makes it easy to operate, safe and efficient, and replaces traditional grease traps, is easy to install, reduces floor space, is easy to clean, and is reusable; its effectiveness is significant, and it can intercept more than 95% of grease and solid residues in food waste, significantly reducing sewage treatment costs, effectively preventing sewer blockage and sewage backflow, and reducing the pollution of waste oil to the environment; the separated oil has a purity of more than 95% and can be recycled to produce biodiesel, realizing resource regeneration.

[0051] In this embodiment, the present invention further provides an oil-water separation management system, comprising: an oil-water separation device, wherein the oil-water separation device is the oil-water separation device described above; An Internet of Things module, integrated into the weight detector, is used to collect waste oil weight data from the oil storage container in real time and upload it to a cloud server; The blockchain module is deployed in the cloud server and is used to receive the waste oil weight data of the oil storage container, generate a hash value containing the timestamp, device ID, and waste oil weight value, and write the data into the blockchain network; Smart contracts, deployed on the blockchain network, are used to automatically trigger recycling requests based on the waste oil weight threshold of the oil storage container; A digital management and control platform, including a mini-program or monitoring app, interacts with the blockchain module to display real-time oil volume data and geographic location information, and interacts with the blockchain network to verify data authenticity; The geographic location binding module is implemented through the digital management and control platform. When the device is deployed, the user scans the device code or manually enters the device ID through the mini program or monitoring APP; the mini program or monitoring APP calls the built-in positioning function of the mobile phone to automatically obtain the store's geographic location, or supports users to manually enter the store address; the obtained geographic location coordinates are bound to the device ID and written to the blockchain network through the blockchain module; the distributed database stores waste oil collection and transportation management data and full life cycle traceability information based on the blockchain network to ensure that the data cannot be tampered with.

[0052] In one embodiment, the digital management and control platform supports multi-role authority management: Catering units can view waste oil weight data and operation and maintenance requests for their oil-water separation devices; Recycling companies can submit transportation plans, update processing status and sign blockchain joint orders; Regulatory authorities can conduct full-link data audits, anomaly tracing and compliance checks.

[0053] The oil-water separation management system uses the Internet of Things module to collect waste oil weight data from oil storage containers in real time, and combines it with the blockchain module to generate a hash value containing timestamp, device ID and weight value and write it into the blockchain network to ensure that the data cannot be tampered with and is traceable throughout the process; the smart contract automatically triggers the recycling request based on the preset waste oil weight threshold, realizing automated management and control of the entire process from monitoring to recycling, reducing manual intervention and improving response efficiency; the digital management and control platform calls the built-in positioning function or manually enters the address, binds the device ID to the geographic location coordinates and writes it to the blockchain, which not only simplifies hardware configuration and reduces deployment costs, but also ensures the authenticity and auditability of geographic information; the distributed database relies on blockchain technology to store full-link traceability information, providing regulatory authorities with a credible audit basis, ensuring food safety from the source and promoting the resource utilization of waste oil, with both environmental benefits and social governance value.

[0054] The present invention also provides a method for using the oil-water separation management system as described above, comprising the following steps: S1. Install the oil-water separator in the kitchen area, ensuring the liquid inlet is connected to the wastewater pipe of the stove, and pre-set the waste oil weight threshold of the oil storage container; S2. Open the digital management and control platform, scan the device code of the oil-water separation device or manually enter the device ID; use the mobile phone's built-in positioning function to automatically obtain the current store's geographic location, or manually enter the detailed address; bind the device ID to the geographic location coordinates and write them into the blockchain network through the blockchain module; S3. The oil-water separation device is operated, and the weight detector monitors the weight of the waste oil in the oil storage container in real time. The IoT module uploads the weight data to the cloud server via the wireless network. After receiving the data, the blockchain module generates a hash value containing the timestamp, device ID, and waste oil weight, and writes it to the blockchain network. S4. When it is detected that the weight of waste oil exceeds the threshold, the smart contract automatically sends a recycling request to the digital management and control platform, and the recycling request is simultaneously pushed to the relevant recycling companies and regulatory authorities; S5. Recycling companies receive tasks through the digital management and control platform and collect waste oil at designated locations based on their bound geographic locations. Once the waste oil arrives at a legal treatment plant, the plant updates its status through the digital management and control platform. The blockchain records the transportation route, handover time, and treatment results, forming a full lifecycle traceability chain. S6. Catering units can check the real-time waste oil inventory and recycling progress through the digital management and control platform; regulatory authorities can retrieve the full-link data in the blockchain through the digital management and control platform to conduct compliance checks.

[0055] The method for using the oil-water separation management system provided by the present invention uses an automated monitoring mechanism and combines the Internet of Things to upload weight data to the blockchain network in real time, ensuring the timeliness and non-tamperability of waste oil inventory information; when the amount of waste oil exceeds the threshold, the smart contract automatically triggers a recycling request and simultaneously pushes it to the recycling company and regulatory authorities, realizing closed-loop management of the entire process from early warning to response, greatly improving recycling efficiency and reducing human operation errors; the digital management and control platform calls the built-in positioning function or manually enters the address, binds the device ID to the geographic location coordinates and writes it to the blockchain, which not only simplifies hardware configuration and reduces deployment costs, but also ensures the authenticity and auditability of geographic information; catering units can monitor the waste oil inventory and recycling progress in real time, and regulatory authorities can access the entire chain of blockchain data to conduct efficient compliance reviews, which not only ensures that the flow of waste oil is transparent and controllable and eliminates the risk of illegal backflow, but also provides accurate data support for resource utilization, and simultaneously promotes the intelligent upgrade of environmental protection governance and food safety supervision.

[0056] Although this document frequently uses terms such as oil-water detection module, centralized control module, electric valve, first partition plate, second partition plate, and third partition plate, the use of other terms is not excluded. These terms are used solely to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitations would be contrary to the spirit of the present invention.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oil-water separation device, characterized in that: include: The device body is provided with a first partition plate, a second partition plate and a third partition plate. The first partition plate divides the device body into a first space and a second space, and an overflow port is provided above the first partition plate so that the first space and the second space are in communication; A second partition plate is provided in the first space to divide the first space into a liquid inlet chamber and a buffer chamber, the liquid inlet chamber is provided with a liquid inlet, and an opening is provided above the second partition plate so that water in the liquid inlet chamber flows into the buffer chamber through the opening; The third partition plate divides the second space into an oil drain chamber and a water drain chamber. An oil drain pipe is provided above the oil drain chamber, and a water drain pipe is provided above the water drain chamber. The third partition plate is connected to the side wall of the first partition plate and the side wall of the second space respectively, and a gap is set between the bottom of the third partition plate and the bottom of the second space so that the oil drain chamber and the water drain chamber are in communication. An oil-water detection module is provided above the oil drain chamber and includes at least one electrode in contact with the liquid medium; A centralized control module, whose signal input terminal is electrically connected to the signal output terminal of the oil-water detection module and can generate a control signal according to the conduction state of the electrode; The electric valve is installed on the oil drain pipe, and its signal input end is connected to the signal output end of the centralized control module, and is used to receive the control signal to execute the opening and closing action of the oil drain pipe; An oil storage container is provided below the oil drain pipe, and a weight detector is provided below the oil storage container.

2. The oil-water separation device according to claim 1, characterized in that: The weight detector is provided with an alarm device, which is electrically connected to the centralized control module; when the oil weight detected by the weight detector exceeds a preset threshold, the centralized control module triggers the alarm device to send an alarm signal.

3. The oil-water separation device according to claim 1, characterized in that: The electrode is fixedly mounted on the electrode mounting plate above the oil drain chamber, and a vibration cleaning module is provided inside the electrode mounting plate. The vibration cleaning module is electrically connected to the centralized control module. The electrodes include a first electrode and a second electrode, both of which are in direct contact with the liquid to form a conductive loop; or the electrode is a single electrode that is indirectly conductive with the liquid via grounding.

4. The oil-water separation device according to claim 1, characterized in that: A detachable filter screen is provided above the liquid inlet chamber; a heating rod is provided above the oil discharge chamber, and the heating rod is electrically connected to the centralized control module.

5. The oil-water separation device according to claim 1, characterized in that: The second partition plate is connected to the side wall of the first partition plate and the side wall of the first space respectively; an opening is provided above the second partition plate, and a guide pipe is provided at the opening; the guide pipe is attached to the second partition plate and is perpendicular to the first partition plate in the horizontal space, so that water flows out of the guide pipe through the opening and flows along the side wall of the second partition plate and the side wall of the first partition plate to the overflow port in sequence; Or the second partition plate is respectively connected to the two side walls of the first space and is parallel to the first partition plate. An opening is provided above the second partition plate, and the opening is provided at one end away from the overflow port, so that water flows in from the liquid inlet, flows out through the opening, and then flows along the side walls of the first space and the side walls of the first partition plate to the overflow port in turn.

6. The oil-water separation device according to claim 1, characterized in that: It also includes a third space located next to the oil drain chamber, one end of the oil drain pipe is located in the oil drain chamber, and the other end is located in the third space; one end of the drain pipe is located in the drain chamber, and the other end is located in the third space and passes through the third space to communicate with the outside; an inclined plate is provided below one end of the drain pipe located in the drain chamber.

7. The oil-water separation device according to claim 1, characterized in that: It also includes a reverse water valve provided below the first partition plate and the second partition plate, and a clean water pipe provided below the liquid inlet chamber, the clean water pipe being in communication with the outside; When the reverse water valve is opened, water flows from the second space through the buffer chamber, flows to the liquid inlet chamber, and is discharged through the clean water pipe.

8. An oil-water separation management system, characterized in that: include: An oil-water separation device, wherein the oil-water separation device is the oil-water separation device according to any one of claims 1 to 7; An Internet of Things module, integrated into the weight detector, is used to collect waste oil weight data from the oil storage container in real time and upload it to a cloud server; The blockchain module is deployed in the cloud server and is used to receive the waste oil weight data of the oil storage container, generate a hash value containing the timestamp, device ID, and waste oil weight value, and write the data into the blockchain network; Smart contracts, deployed on the blockchain network, are used to automatically trigger recycling requests based on the waste oil weight threshold of the oil storage container; A digital management and control platform, including a mini-program or monitoring app, interacts with the blockchain module to display real-time oil volume data and geographic location information, and interacts with the blockchain network to verify data authenticity; The geographic location binding module is implemented through the digital management and control platform. When the device is deployed, the user scans the device code or manually enters the device ID through the mini program or monitoring app. The mini program or monitoring app uses the built-in positioning function of the mobile phone to automatically obtain the store's geographic location, or supports users to manually enter the store address. The obtained geographic location coordinates are bound to the device ID and written to the blockchain network through the blockchain module. A distributed database stores waste oil collection and transportation management data and full life cycle traceability information based on the blockchain network to ensure that the data cannot be tampered with.

9. The oil-water separation management system according to claim 8, characterized in that: The digital management and control platform supports multi-role authority management: Catering units can view waste oil weight data and operation and maintenance requests for their oil-water separation devices; Recycling companies can submit transportation plans, update processing status and sign blockchain documents; Regulatory authorities can conduct full-link data audits, anomaly tracing and compliance checks.

10. A method for using the oil-water separation management system according to any one of claims 8 to 9, characterized in that: The steps include: S1. Install the oil-water separator in the kitchen area, ensuring the liquid inlet is connected to the wastewater pipe of the stove, and pre-set the waste oil weight threshold of the oil storage container; S2. Open the digital management and control platform, scan the device code of the oil-water separation device or manually enter the device ID; use the mobile phone's built-in positioning function to automatically obtain the current store's geographic location, or manually enter the detailed address; bind the device ID to the geographic location coordinates and write them into the blockchain network through the blockchain module; S3. The oil-water separation device is operated, and the weight detector monitors the weight of the waste oil in the oil storage container in real time. The IoT module uploads the weight data to the cloud server via the wireless network. After receiving the data, the blockchain module generates a hash value containing the timestamp, device ID, and waste oil weight, and writes it to the blockchain network. S4. When it is detected that the weight of waste oil exceeds the threshold, the smart contract automatically sends a recycling request to the digital management and control platform, and the recycling request is simultaneously pushed to the relevant recycling companies and regulatory authorities; S5. Recycling companies receive tasks through the digital management and control platform and collect waste oil at designated locations based on their bound geographic locations. Once the waste oil arrives at a legal treatment plant, the plant updates its status through the digital management and control platform. The blockchain records the transportation route, handover time, and treatment results, forming a full lifecycle traceability chain. S6. Catering units can check the real-time waste oil inventory and recycling progress through the digital management and control platform; regulatory authorities can retrieve the full-link data in the blockchain through the digital management and control platform to conduct compliance checks.

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