KR102611002B1 - Control method of clean tank maintaining purified cutting oil, and system - Google Patents

Abstract

The present invention relates to a control method for a clean tank that maintains refined oil in which cutting oil has been purified, including a cutting oil purification vehicle that purifies and transports cutting oil waste liquid, and a clean tank that obtains refined oil from the cutting oil purification vehicle and stores and maintains the refined oil. , and relates to a system, in particular, a control method of a clean tank, comprising: a clean tank monitoring temperature, humidity, and acidity (pH, power of hydrogen) for stored refined oil; and a clean tank monitoring the stored refined oil. It includes maintaining the temperature, humidity, and acidity at constant values.

Description

Control method and system for a clean tank that maintains refined cutting oil {CONTROL METHOD OF CLEAN TANK MAINTAINING PURIFIED CUTTING OIL, AND SYSTEM}

The present invention relates to a control method and system for a clean tank that maintains refined oil in which cutting oil has been purified. In detail, the present invention relates to a control method and system for cutting oil waste, based on communication between a cutting oil purification vehicle that purifies waste cutting oil and a clean tank that stores refined oil. This is a technology that performs control of refueling from a vehicle to a clean tank, and control of refining of cutting oil inside the vehicle.

Almost all cutting machines that use cutting oil to cool workpieces use sliding oil, which is essential for machine operation, and factories generally use both cutting oil and sliding oil.

Therefore, during the operation of cutting machines, cutting oil waste liquid, which is a mixture of sliding oil, cutting oil, and foreign substances resulting from cutting operations, is continuously generated.

Conventional methods for processing waste cutting oil include simple incineration, but this has the risk of generating dioxins from chemicals and spreading environmental hormones into the atmosphere, and carbon dioxide from incineration promotes environmental pollution. exists.

Among the prior technologies, there is a technology to prevent spoilage by separating water and oil from cutting oil waste through an oil-water separator. However, this is because the oil-water separator and the purification device are separated and applied individually without any correlation, so the oil and water are separated from each other. There is a problem that efficiency is reduced due to separation or purification, and in addition, as it must be installed individually, a large space is required, which creates space limitations.

Meanwhile, the matters described as background technology above are only for the purpose of improving understanding of the background of the present invention, and should not be taken as recognition that they correspond to prior art already known to those skilled in the art. will be.

Registered Patent Publication No. 10-0989816, 2010.10.19.

The problem to be solved by the present invention is to purify cutting oil waste fluid by performing the purification within a vehicle loading space, which is a limited space, and storing the refined oil up to the service station where the clean tank, which is a facility capable of storing it, is located. To provide a control method and system for a clean tank that maintains refined oil containing refined cutting oil, performing transfer, and maintaining the temperature, humidity, and acidity of the refined oil stored inside the clean tank at constant values.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

In the control method of a clean tank according to one aspect of the present invention for solving the above-described problem, the clean tank monitors the temperature, humidity, and acidity (pH, power of hydrogen) of stored refined oil, and clean The tank includes maintaining the temperature, humidity, and acidity of the stored refined oil at constant values, respectively, and the step of maintaining the temperature, humidity, and acidity at constant values, respectively, includes cooling or heating the stored refined oil. Control is performed on each of the temperature control unit, the humidity control unit that maintains the humidity inside the clean tank at a constant value, and the pH control unit that controls the acidity of the refined oil, so that the temperature, humidity, and acidity of the stored refined oil are maintained at a constant value. Maintain the value.

Additionally, the control method of the clean tank is that the clean tank includes a storage amount of cutting oil waste liquid from a cutting oil purification vehicle, an expected purification completion time for the cutting oil waste liquid, an expected acidity of the refined oil to be obtained by purifying the cutting oil waste liquid, and a cutting oil waste liquid purified by the clean tank. Obtaining an expected amount of refined oil to be obtained, if the expected acidity is not included in the critical range, calculating the difference value that the clean tank has from the critical range, calculating a maximum capacity inversely proportional to the calculated difference value, of the stored refined oil. In the step of calculating based on the stored amount, and when the estimated amount exceeds the maximum capacity, the clean tank restricts the opening and closing of the check valve of the cutting oil purification vehicle, so that refined oil flows into the filling port of the clean tank through the fuel gun of the cutting oil purification vehicle. It may further include steps to limit what is happening.

Additionally, in the control method of a clean tank, the clean tank obtains an expected time required from each of a plurality of cutting oil purification vehicles, wherein the clean tank makes an estimate for each of the plurality of cutting oil purification vehicles based on the expected time required. Calculating the refueling start time, the clean tank is based on the refined oil storage capacity inside the clean tank, the amount of stored refined oil, and the expected amount to be obtained by purifying the cutting oil waste liquid for each of the plurality of coolant purification vehicles and the expected refueling start time. , It may further include selecting at least one vehicle to be dispatched in matching clean tank from among the plurality of cutting oil purification vehicles.

Additionally, in the control method of a clean tank, the clean tank monitors the stored amount of refined oil, and the stored amount identified according to the monitoring, at least one waste liquid recovery site for each of all vehicles, and a recovery date for each waste liquid recovery point. , and based on the average refined amount by recovery date, further comprising selecting at least one day on which to refuel refined oil, wherein the step of selecting a vehicle includes selecting at least one vehicle by time for the selected day among the selected vehicles. The step of re-selecting to create a dispatch schedule and providing the dispatch schedule to the vehicles included in the dispatch schedule may be further included.

Meanwhile, in the system according to one aspect of the present invention, which includes a cutting oil refining vehicle for purifying and transporting cutting oil waste liquid, and a clean tank of the present invention for obtaining refined oil from the cutting oil refining vehicle and storing and maintaining the refined oil, The clean tank includes a first storage unit that stores refined oil, a fueling port that is an inlet that receives refined oil from the cutting oil purification vehicle to the first storage unit, a temperature sensor, a humidity sensor, and a hydrogen ion concentration sensor. , a first communication unit in communication with the cutting oil refining vehicle, and a first control unit connected to the first storage unit, the fuel filler, the first sensor unit, and the first communication unit, respectively, the temperature of the refined oil stored inside the first storage unit. , humidity, and acidity (pH, power of hydrogen) are each maintained at constant values.

Additionally, the clean tank, through the first communication unit, stores the amount of cutting oil waste liquid from the cutting oil purification vehicle, the expected purification completion time for the cutting oil waste liquid, the expected acidity of the refined oil to be obtained by purifying the cutting oil waste liquid, and the cutting oil waste liquid obtained by purifying the waste coolant liquid. Obtaining an expected amount of refined oil to be obtained, obtaining an expected time required from each of a plurality of vehicles, including a cutting oil refining vehicle, and calculating an expected refueling start time for each of the plurality of vehicles based on the obtained expected time required, Based on the capacity of the first storage unit, the amount of refined oil stored in the first storage unit, and the expected amount of refined oil to be obtained by refining the cutting oil waste liquid for each of the plurality of vehicles and the expected refueling start time, among the plurality of vehicles, the first storage It may be characterized by selecting at least one vehicle to be dispatched by matching the unit.

Other specific details of the invention are included in the detailed description and drawings.

According to the control method and system of a clean tank for maintaining refined cutting oil of the present invention, cutting oil waste liquid can be purified anywhere in a parking space, free from time and space constraints, and refined oil stored inside the clean tank can be purified. By maintaining constant temperature, humidity, and acidity, high-quality refined oil can be supplied.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

1 is a system configuration diagram according to an embodiment of the present disclosure.
Figure 2 is a configuration diagram of a cutting oil purification vehicle according to an embodiment of the present disclosure.
Figure 3 is a basic operational flowchart of a clean tank according to an embodiment of the present disclosure.
4 is a basic operational flowchart of a cutting oil refining vehicle according to an embodiment of the present disclosure.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. The present embodiments are merely provided to ensure that the disclosure of the present invention is complete and to provide a general understanding of the technical field to which the present invention pertains. It is provided to fully inform the skilled person of the scope of the present invention, and the present invention is only defined by the scope of the claims.

The terminology used herein is for describing embodiments and is not intended to limit the invention. As used herein, singular forms also include plural forms, unless specifically stated otherwise in the context. As used in the specification, “comprises” and/or “comprising” does not exclude the presence or addition of one or more other elements in addition to the mentioned elements. Like reference numerals refer to like elements throughout the specification, and “and/or” includes each and every combination of one or more of the referenced elements. Although “first”, “second”, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless clearly specifically defined.

As used in the specification, the term “unit” or “module” refers to a hardware component such as software, FPGA, or ASIC, and the “unit” or “module” performs certain roles. However, “part” or “module” is not limited to software or hardware. A “unit” or “module” may be configured to reside on an addressable storage medium and may be configured to run on one or more processors. Thus, as an example, a “part” or “module” refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, Includes procedures, subroutines, segments of program code, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functionality provided within components and “parts” or “modules” can be combined into smaller components and “parts” or “modules” or into additional components and “parts” or “modules”. Could be further separated.

Spatially relative terms such as “below”, “beneath”, “lower”, “above”, “upper”, etc. are used as a single term as shown in the drawing. It can be used to easily describe the correlation between a component and other components. Spatially relative terms should be understood as terms that include different directions of components during use or operation in addition to the directions shown in the drawings. For example, if you flip a component shown in a drawing, a component described as "below" or "beneath" another component will be placed "above" the other component. You can. Accordingly, the illustrative term “down” may include both downward and upward directions. Components can also be oriented in other directions, so spatially relative terms can be interpreted according to orientation.

In this specification, a computer refers to all types of hardware devices including at least one processor, and depending on the embodiment, it may be understood as encompassing software configurations that operate on the hardware device. For example, a computer can be understood to include, but is not limited to, a smartphone, tablet PC, desktop, laptop, and user clients and applications running on each device.

Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

1 is a system configuration diagram according to an embodiment of the present disclosure.

As shown in FIG. 1, in the cutting oil purification and maintenance system, a cutting oil purification vehicle 200 that purifies and transports cutting oil waste liquid, and a clean vehicle that obtains refined oil from the cutting oil purification vehicle 200 and stores and maintains the refined oil. Includes tank 100.

The clean tank 100 includes a first storage unit 110 that stores refined oil, an oil fill port 120 that is an inlet through which refined oil is injected from the cutting oil refining vehicle 200 to the first storage unit 110, a temperature sensor, A first sensor unit 130 including a humidity sensor and a hydrogen ion concentration sensor, a first communication unit 140 communicating with the cutting oil purification vehicle 200, a first storage unit 110, and a fueling port 120. , a first control unit 150 that is respectively connected to the first sensor unit 130 and the first communication unit 140 and controls the overall operation of the clean tank 100.

Figure 2 is a configuration diagram of a cutting oil purification vehicle according to an embodiment of the present disclosure.

As shown in FIGS. 1 and 2 , the cutting oil refining vehicle 200 is a vehicle including a loading space.

The loading space is equipped with equipment for refining cutting oil.

For example, the cutting oil purification vehicle 200 is an open-and-closed structure that can protect the components mounted in the loading space from the outside, and may be a wing body truck structure that can open and close the loading space on both sides to open the loading space to the outside. .

As a specification of equipment for cutting oil purification, the cutting oil purification vehicle 200 has a second storage unit 210, a second storage unit 210, which is structured to suck cutting oil waste liquid from the outside and filter and store cutting chips, sludge, and particulate foreign substances. By obtaining and centrifuging the filtered cutting oil waste liquid from the storage unit 210, cutting oil is obtained from the centrifugal separator 220, which primarily separates and discharges lubricating oil, cutting oil, and cutting chips. A specific gravity separator 230 that separates and discharges lubricating oil, cutting oil, and cutting chips by separating them according to specific gravity, and a product that stores the cutting oil secondaryly separated from the specific gravity separator 230 as refined oil. 3 Includes a storage unit 240.

For example, the second storage unit 210 is mounted in a structure in which a plurality of storage tanks having spaces separated by a plurality of partitions are in communication, and in the structure in which the plurality of storage tanks are in communication, cutting chips, sludge and particles are stored. A filter that filters out foreign substances may be installed.

Preferably, inside the second storage unit 210, an ultraviolet lamp that irradiates ultraviolet rays (UV-C) to the cutting oil waste liquid stored in the plurality of storage tanks may be mounted on the upper part of the storage tank.

In this case, by providing a storage tank of the second storage unit 210 in which an ultraviolet lamp is mounted at a specific location, ultraviolet rays can be irradiated to the lubricant floating on the water surface of the cutting oil, preventing the generation of odor due to rotting of the lubricant. can be blocked, allowing purification work to be performed in a comfortable environment.

In some cases, in order to make maintenance and management by the driver or operator easier, the loading space includes a second storage unit 210, a centrifugal separation unit 220, a gravity separation unit 230, and a third storage unit 240. ) can be mounted with a mounting rail that can change the position, and at this time, the mounting lane includes a second storage unit 210, a centrifugal separation unit 220, a gravity separation unit 230, and a third storage unit 240. It may be equipped with a position changing means that can change the position of.

In addition, the cutting oil purification vehicle 200 includes a monopump that provides the cutting oil waste liquid stored in the second storage unit 210 to the centrifugal separation unit 220, flow meters 252a and 252b, butterfly valves 253a and 253b, Two branch lines (250a) each equipped with flow meters (252a, 252b) and butterfly valves (253a, 253b), and the two branch lines (250a) are integrated into one line and communicate with the centrifugal separator (220). an integrated line 250b, a first check valve 254a located in the integrated line 250b and allowing only flow in the direction of the centrifugal separator 220, and from the third storage unit 240 to the fuel inlet 120. It includes a piping unit 250 that includes a second check valve 254b that allows refined oil to be supplied and a fueling line on which a fueling gun 255 that is detachable from the fueling port 120 is installed.

In addition, the cutting oil purification vehicle 200 performs centrifugation by injecting washing water into a washing water tank that receives washing water from the outside, and a line between the first check valve 254a and the centrifugal separation unit 220 on the integrated line 250b. It includes a washing unit 260 including a washing pump that supplies washing water to the unit 220, a water quality detection sensor, and a second sensor unit 270 including a water level sensor.

In addition, the cutting oil purification vehicle 200 includes a second communication unit 280, a second storage unit 210, a centrifugal separation unit 220, a gravity separation unit 230, and a second communication unit 280 that communicates with the clean tank 100. 3 is connected to the storage unit 240, the piping unit 250, the cleaning unit 260, the second sensor unit 270, and the second communication unit 280, and controls the overall operation of the cutting oil purification vehicle. 2 Includes a control unit 290.

In some cases, the second sensor unit detects data on acidity, chemical oxygen demand (COD), temperature, and turbidity in measuring the chemical state of the cutting oil waste stored inside the second storage unit 210, and uses the second control unit ( 290).

Each of these components 210 to 290 may be mounted on one side of the loading space.

This cutting oil purification vehicle 200 quickly moves to a facility or factory requiring cutting oil waste collection or cutting oil waste treatment, or a service station (where the clean tank 100 is located) where refined oil is stored and is parked stably.

The stably parked cutting oil purification system vehicle 100 sucks the cutting oil waste stored in a facility or factory through a tube pump and stores it in the second storage unit 210. At this time, the pipe connecting the tube pump and the second storage unit 210 is equipped with a flexible joint, so that the structural stability of the pipe can be secured by absorbing the extension/contraction length of the pipe according to the temperature of the inhaled cutting oil waste liquid. In addition, the pipe connecting the tube pump and the second storage unit 210 may be equipped with a flow meter capable of detecting the volume of the inhaled cutting oil waste liquid, and the suction flow rate information detected from the flow meter is transmitted in real time to the second control unit ( 290).

In some cases, two more separate pipes may be installed in the pipe leading to the tube pump. Specifically, the cutting oil waste liquid to be purified can be classified into a water-soluble suction line and a non-water-soluble suction line by determining whether it is water-soluble or non-water-soluble. In this case, too, a flow meter can be installed in each line to detect the intake amount of soluble or non-soluble cutting fluid waste fluid in real time.

The cutting oil waste liquid stored in the second storage unit 210 is mixed by a stirrer, and at this time, the cutting oil waste liquid stored inside the second storage unit 210 is exposed to the UV lamp mounted inside the second storage unit 210. It is sterilized and disinfected by -C, which can reduce the bad odor generated from the cutting oil waste liquid and block the buffing process of the cutting oil waste liquid.

Preferably, a water quality detection sensor and a water level sensor may be installed inside the second storage unit 210.

The water quality detection sensor is a component that measures the chemical state of the cutting oil waste liquid stored inside the second storage unit 210, and measures the acidity of the cutting oil waste liquid, that is, hydrogen ion concentration (pH concentration), chemical oxygen demand (COD), and temperature. , After detecting data regarding turbidity, the detected data may be transmitted to the second control unit 290.

In addition, the water level sensor mounted inside the second storage unit 210 detects the level of the cutting oil waste liquid stored inside the second storage unit 210 in real time, and when the level exceeds the preset level, the tube pump operates. can be stopped.

In some cases, the water quality detection sensor and the water level sensor may also be installed inside the third storage unit 240.

Additionally, when the level of the cutting oil waste liquid stored inside the second storage unit 210 falls below a preset level, the tube pump can be restarted.

The cutting oil waste stored in the second storage unit 210 is cut into the centrifugal separator 220 by the operation of the mono pump 251.

The pipe delivered to the centrifugal separator 220 by the mono pump 251 is equipped with a plurality of valves (253a, 253b, 254a) and flow meters (252a, 252b) to measure the waste cutting fluid provided to the centrifugal separator 220. Flow data can be detected.

At this time, the detected flow rate data may be transmitted to the second control unit 290 in real time.

The washing water stored in the washing water tank 260 can be provided to the centrifugal separator 220 by the washing water pump 261, and an electronic ball valve 262 is installed in the washing water supply pipe to be controlled by the second control unit 290. Accordingly, the supply of washing water can be easily controlled.

The cutting oil waste liquid provided to the centrifugal separator 220 is centrifuged and divided into lubricating oil, cutting oil, and cutting chips and discharged to the outside.

The centrifuged cutting oil is delivered to the specific gravity separator 230, and the sludge containing the centrifuged cutting chips is delivered to the sludge discharge box 221.

Additionally, the centrifuged lubricating oil is discharged to the outside and disposed of.

The specific gravity separator 230 receives the centrifuged cutting oil from the centrifugal separator 220, separates it based on specific gravity, and separates and discharges the lubricating oil, cutting oil, and cutting chips again.

At this time, sludge containing unnecessary cutting chips can be discharged to the outside through the drain pipe using the drain pump 256, and the amount discharged can be monitored through the flow meter 252c and the butterfly valve 253c. .

Finally, the purified cutting oil is provided to the outside through the specific gravity separator 230 according to this embodiment, and at this time, the amount of purified cutting oil provided can be monitored.

As described above, according to the cutting oil purification vehicle 200, the second storage unit 210, the centrifugal separation unit 220, and the specific gravity separation unit 230 of a specific structure are communicated through one pipe to perform filtration. By quickly performing purification treatment by filter, purification treatment by centrifugal force, and purification treatment by specific gravity in a continuous series of processes, it is possible to quickly move to a facility or factory that requires collection of waste coolant liquid or treatment of waste coolant liquid. We can provide a vehicle equipped with a cutting oil purification system that can reliably collect or purify the waste coolant fluid on site.

Meanwhile, the types of pumps, valves, refueling guns, etc. described above are not limited.

Meanwhile, the present invention may further include an electronic device that controls communication between the clean tank 100 and the cutting oil purification vehicle 200 and their respective operations.

The electronic device may include a memory, a communication unit that communicates with the clean tank 100, the cutting oil purification vehicle 200, and at least one terminal, and a processor that controls the overall operation of the electronic device.

In one embodiment, the electronic device includes a server, a smartphone, a tablet personal computer, a mobile phone, a video phone, a laptop PC, a netbook computer, and a laptop. It may include at least one of a laptop computer, a personal digital assistant (PDA), a portable multimedia player (PMP), and a wearable device.

Meanwhile, memory can store various programs and data necessary for the operation of an electronic device. Memory can be implemented as non-volatile memory, volatile memory, flash-memory, hard disk drive (HDD), or solid state drive (SSD).

The communication unit can perform communication with external devices. In particular, the communication unit may include various communication chips such as a Wi-Fi chip, a Bluetooth chip, a wireless communication chip, an NFC chip, and a low-energy Bluetooth chip (BLE chip). At this time, the Wi-Fi chip, Bluetooth chip, and NFC chip communicate in the LAN method, WiFi method, Bluetooth method, and NFC method, respectively. When using a Wi-Fi chip or Bluetooth chip, various connection information such as SSID and session key are first transmitted and received, and various information can be transmitted and received after establishing a communication connection using this. A wireless communication chip refers to a chip that performs communication according to various communication standards such as IEEE, ZigBee, 3G (3rd Generation), 3GPP (3rd Generation Partnership Project), LTE (Long Term Evolution), and 5G (5th Generation).

The processor can control the overall operation of the electronic device using various programs stored in memory. The processor may be composed of RAM, ROM, graphics processing unit, main CPU, first to n interfaces, and bus. At this time, RAM, ROM, graphics processing unit, main CPU, first to n interfaces, etc. may be connected to each other through a bus.

RAM stores O/S and application programs. Specifically, when the electronic device is booted, the O/S is stored in RAM, and various application data selected by the user may be stored in RAM.

ROM stores a set of instructions for booting the system. When the turn-on command is input and power is supplied, the main CPU copies the O/S stored in memory to RAM according to the command stored in ROM, executes the O/S, and boots the system. When booting is complete, the main CPU copies various application programs stored in memory to RAM and executes the application programs copied to RAM to perform various operations.

The graphics processing unit uses a calculation unit (not shown) and a rendering unit (not shown) to create a screen containing various objects such as items, images, and text. Here, the calculation unit may be configured to calculate attribute values such as coordinate values, shape, size, color, etc. for each object to be displayed according to the layout of the screen using a control command received from the input unit. Additionally, the rendering unit may be configured to generate screens of various layouts including objects based on attribute values calculated by the calculation unit. The screen generated by this rendering unit may be displayed within the display area of the display.

The main CPU accesses memory and performs booting using the OS stored in the memory. And, the main CPU performs various operations using various programs, content, data, etc. stored in memory.

The first to n interfaces are connected to the various components described above. One of the first to n interfaces may be a network interface connected to an external device through a network.

Meanwhile, the processor may include one or more cores (not shown), a graphics processing unit (not shown), and/or a connection passage (for example, a bus, etc.) for transmitting and receiving signals to and from other components.

A processor according to one embodiment performs the method described in connection with the present invention by executing one or more instructions stored in memory.

For example, the processor acquires new training data by executing one or more instructions stored in memory, performs a test on the acquired new training data using a learned model, and the test result, labeled information Extract first learning data obtained with an accuracy greater than a predetermined first reference value, delete the extracted first learning data from the new learning data, and use the new learning data from which the extracted learning data has been deleted. The learned model can be retrained.

Meanwhile, the processor further includes RAM (Random Access Memory, not shown) and ROM (Read-Only Memory, not shown) that temporarily and/or permanently store signals (or data) processed inside the processor. It can be included. Additionally, the processor may be implemented in the form of a system on chip (SoC) that includes at least one of a graphics processing unit, RAM, and ROM.

Programs (one or more instructions) for processing and controlling the processor can be stored in the memory. Programs stored in memory may be divided into a plurality of modules according to their functions.

The functions of the communication unit and processor described above may also be applied to the first communication unit, the second communication unit, the first control unit, and the second control unit, respectively.

Meanwhile, there may be a plurality of terminals, and each terminal may be an electronic device owned by a user such as the driver of the cutting oil refining vehicle 200 or the manager of the gas station where the clean tank 100 is located.

In one embodiment, the terminal is a smartphone, a tablet personal computer, a mobile phone, a video phone, a laptop PC, a netbook computer, or a laptop computer. It may include at least one of a computer, a personal digital assistant (PDA), a portable multimedia player (PMP), and a wearable device.

The terminal may include a communication unit for communicating with an electronic device, an input/output unit for receiving user commands and outputting data, and a control unit for controlling the overall operation of the terminal.

The input/output unit may include a display, keyboard, analog buttons, mouse, controller, remote control, speaker, microphone, etc.

A display is a configuration for visually outputting various information.

The display can be implemented as LCD (Liquid Crystal Display), PDP (Plasma Display Panel), OLED (Organic Light Emitting Diode), TOLED (Transparent OLED), Micro LED, etc., but is not limited to this and various other known forms. It may include a display of. The display may be implemented in the form of a touch screen capable of detecting a user's touch operation, or may be implemented as a flexible display that can be folded or bent.

Figure 3 is a basic operational flowchart of a clean tank according to an embodiment of the present disclosure.

The clean tank 100 maintains the temperature, humidity, and acidity (pH, power of hydrogen) of the refined oil stored inside at constant values.

To this end, as shown in FIG. 3, the clean tank 100 monitors the temperature, humidity, and acidity of the refined oil stored in the first storage unit 110 through the first sensor unit 130 (S310). ), the temperature, humidity, and acidity of the refined oil stored in the first storage unit 110 can be maintained at constant values (S320).

At this time, in order to perform step S320, the clean tank 100 includes a temperature control unit that cools or heats the refined oil, a humidity control unit that maintains the humidity inside the first storage unit 110 at a constant value, and a temperature control unit that cools or heats the refined oil. It can further include a pH control unit for controlling acidity, and can control the temperature control unit, humidity control unit, and pH control unit, respectively.

The pH adjustment unit includes a neutral agent storage unit for storing a neutral agent, a neutral agent supply pipe communicating the neutral agent storage unit and the first storage unit 110, and a neutral agent storage unit 110 within the neutral agent storage unit under the control of the first control unit 150. It may include a neutral agent control valve that authorizes the supply of the neutral agent to the first storage unit 110 through the neutral agent supply pipe.

Meanwhile, the clean tank 100 receives information from the cutting oil purification vehicle 200 through the first communication unit 140, such as the storage amount of cutting oil waste liquid, the expected purification completion time for the cutting oil waste liquid, and the expected acidity of the refined oil to be obtained by purifying the cutting oil waste liquid. , and the estimated amount of refined oil to be obtained by refining the cutting oil waste liquid can be obtained.

At this time, when the expected acidity is not included in the critical range, the clean tank 100 calculates the difference value that the expected acidity has from the critical range, and sets the maximum capacity in inverse proportion to the calculated difference value stored in the first storage unit 110. Calculated based on the storage amount of refined oil.

For example, the refined oil stored in the first storage unit 110 is maintained at a certain acidity and ensures a high recycling rate. However, if the quality deteriorates due to an increase in acidity within a short period of time due to additional refueling, the recycling rate may rapidly decrease.

Therefore, in calculating the maximum capacity, the clean tank 100 has an expected acidity when refined oil to be obtained by refining cutting oil waste liquid, which is expected to be additionally refueled, is added to the refined oil stored in the first storage unit 110. Based on , the critical range can be maintained and the maximum capacity, which is the maximum amount that can be accommodated in the first storage unit 110, can be calculated.

The maximum capacity is proportional to the capacity for additional refueling in the first storage unit 110 and the expected acidity, and is inversely proportional to the difference value that the expected acidity has from the critical range.

At this time, when the expected amount of refined oil exceeds the maximum capacity, the clean tank 100 restricts the opening and closing of the second check valve 254b of the cutting oil purification vehicle 200 through the first communication unit 140 to refuel. The inflow of refined oil into the fuel port 120 through the gun 255 is restricted, that is, the inflow is not permitted.

In an embodiment, the clean tank 100 restricts the opening and closing of the fueling port 120, that is, prevents the cover of the fueling port 120 from opening so that the fueling gun 255 can be inserted into the fueling port 120, so that the fueling gun 255 ) is inserted into the refueling port 120 to manually open the second check valve 254b to prevent the action of a person attempting to refuel, thereby protecting the refined oil stored in the first storage unit 110.

Additionally, the cutting oil refining vehicle 200 acquires the location of the cutting oil refining vehicle 200 and calculates the expected time required from the location of the vehicle to the gas station where the clean tank 100 is located based on the traffic volume. Includes a travel time calculation unit.

Accordingly, the clean tank 100 obtains the expected time required from each of the plurality of vehicles including the cutting oil purification vehicle 200, and calculates the expected refueling start time for each of the plurality of vehicles based on the estimated time required. do.

Thereafter, the clean tank 100 is configured to store a plurality of fuels based on the capacity of the first storage unit 110, the amount of refined oil stored in the first storage unit 110, the expected amount for each of the plurality of vehicles, and the expected refueling start time. Among the vehicles, at least one vehicle to be matched and dispatched to the first storage unit 110 is selected.

In an embodiment, the cutting oil refining vehicle 200 includes at least one waste fluid recovery site (location) where the cutting oil refining vehicle 200 acquires cutting oil waste fluid, a recovery date for each waste fluid recovery site, and an average purified quantity per recovery date (recovered The actual amount of refined oil (not the total amount of cutting oil waste fluid) is updated by date, and at least one waste fluid recovery site, the collection date for each waste fluid recovery site, and the average refined amount for each recovery date are displayed to the second communication unit 290. It can be provided as a clean tank (100).

The clean tank 100 monitors the storage amount of refined oil stored in the first storage unit 110, and stores the storage amount identified according to the monitoring, at least one waste liquid recovery site for each of all vehicles including the cutting oil purification vehicle 200, Based on the collection date for each waste liquid collection site and the average refined volume for each recovery date, at least one day for refueling refined oil can be selected.

Accordingly, when selecting at least one vehicle to be dispatched by matching the first storage unit 110 among the plurality of vehicles, the clean tank 100 reselects at least one vehicle for each time on the selected date and dispatches the vehicle. A schedule may be created, and the generated dispatch schedule may be provided to vehicles included in the dispatch schedule through the first communication unit 120.

At this time, the dispatch schedule may be provided to the vehicle a certain time before the vehicle is dispatched, or a certain date before the vehicle is dispatched.

Meanwhile, the storage amount of refined oil stored in the first storage unit 110 may be reduced by being moved to a separate storage unit or used by a person such as a gas station manager.

4 is a basic operational flowchart of a cutting oil refining vehicle according to an embodiment of the present disclosure.

As shown in FIG. 4, the cutting oil purification vehicle 200 acquires water quality data, including data on each of the acidity, chemical oxygen demand, temperature, and turbidity of the cutting oil waste liquid through a water quality detection sensor (S410). And, water level data of at least one of the inside of the second storage unit 210 and the inside of the third storage unit 240 is obtained from the water level sensor (S420).

Thereafter, the cutting oil purification vehicle 200, based on the water quality data and water level data, determines the storage amount of the cutting oil waste liquid, the expected purification completion time for the cutting oil waste liquid, the expected acidity of the refined oil to be obtained by purifying the cutting oil waste liquid, and the cutting oil waste liquid purification. At least one of the expected amounts of refined oil to be obtained is calculated (S430).

Accordingly, the cutting oil purification vehicle 200 transmits the stored amount of cutting oil waste liquid, the expected purification completion time, the expected acidity, and the calculated result value among the expected amount to the clean tank 100 through the second communication unit 280.

At this time, when the expected acidity is not included in the critical range, the cutting oil purification vehicle 200 adds the expected amount to the storage amount of the third storage unit 240, based on the expected amount and water level data, and the expected storage amount is added to the third storage unit 240. Determine if it is less than the capacity of (240).

If the expected storage amount is determined to be less than the capacity of the third storage unit 240, and the amount of filtered cutting oil waste liquid is less than the capacity of the second storage unit 210, the cutting oil purification vehicle 200 operates the first check valve 254a. ) to block the opening and closing of the filtered cutting oil waste liquid to limit the flow into the centrifugal separator 220.

This prevents the refined oil to be obtained by refining the cutting oil waste liquid from being stored and transported in a low-quality state where the expected acidity is not within the critical range, and at the same time, upon further purification, the third storage unit whose acidity is already within the critical range. This is a measure to maintain the quality of refined oil stored in (240).

Specifically, in the case where the expected storage amount of the cutting oil purification vehicle 200 is less than the capacity of the third storage unit 240 and the cutting oil waste liquid can be additionally stored in the second storage unit 210, the cutting oil to be additionally stored Since there is a possibility that the expected acidity is included in the critical range due to the waste liquid, centrifugation of the cutting oil waste liquid stored in the second storage unit 210 is not performed until the cutting oil waste liquid is additionally obtained.

Accordingly, power can be consumed efficiently and costs can be reduced.

On the other hand, the secondary expected acidity calculated based on the additional oil and filtered cutting oil waste liquid obtained by filtering the waste liquid additionally sucked in from the outside is included in the critical range, or the acidity calculated based on the additional oil and filtered cutting oil waste liquid is included in the critical range. If the secondary expected storage amount matches the capacity of the third storage unit 240, the cutting oil purification vehicle 200 allows the opening and closing of the first check valve 254a to perform purification of the cutting oil waste liquid.

Specifically, when the secondary expected storage amount calculated based on the additional oil and the filtered cutting oil waste liquid matches the capacity of the third storage unit 240, the capacity of the third storage unit 240 is insufficient and no further cutting oil waste liquid is stored. Since it cannot be stored in the second storage unit 210, the cutting oil purification vehicle 200 performs purification of the cutting oil waste liquid stored in the second storage unit 210.

On the other hand, in the clean tank 100 and the cutting oil purification vehicle 200, the operation to limit the opening and closing of the valve or filling port is to maintain the corresponding configuration in a closed state, and the operation to allow the opening and closing is to keep the corresponding configuration open and closed. It allows performing an action.

In an embodiment, the cutting oil purification vehicle 200 controls the butterfly valves 253a, 253b, and 253c, the first check valve 254a, the second check valve 254b, and the electronic ball through the second control unit 290. The valve 262 and a plurality of flow meters 252a, 252b, and 252c are electrically controlled.

Specifically, the cutting oil purification vehicle 200 controls the opening and closing of the valve in the operation of the valve, but if the flow rate obtained through the flow meter with the valve open is less than a certain speed (including the flow direction) or the flow meter with the valve closed If the flow rate obtained through exists (flow occurs), it is determined that an abnormality has occurred, and the location of the flow meter where the abnormality was detected can be identified.

If it is determined that an abnormality has occurred, the cutting oil purification vehicle 200 may stop purifying the cutting oil waste liquid.

In an embodiment, when at least one of the flow meters 252a and 252b in which an abnormality is detected is located in the branch line 250a, the cutting oil purification vehicle 200 uses the butter located in the branch line 250a for the first determination. One of the fly valves 253a and 253b can be closed and a primary abnormality can be checked on the flow meter adjacent to the open valve.

If an abnormality is confirmed in the first judgment, the cutting oil purification vehicle 200 closes the other one of the butterfly valves 253a and 253b located in the branch line 250a for the second judgment and checks the flow meter adjacent to the open valve. The abnormality can be confirmed in two ways.

If an abnormality is confirmed in the secondary judgment, the cutting oil purification vehicle 200 determines that an abnormality exists with the first check valve 254a and stops the operation of the mono pump 251 and the washing water pump 261, The electronic ball valve 262 and the butterfly valves 253a and 253b located in the branch line 250a are all closed, and the occurrence of an abnormality in the first check valve 254a is reported to the driver through the second communication unit 290. It can be provided through a terminal.

In addition, when an abnormality is not confirmed in at least one of the first judgment and the second judgment, the cutting oil purification vehicle 200 determines that the butterfly valve for the judgment for which no abnormality was confirmed is broken, and the mono pump 251 ) and the washing water pump 261 are stopped, the electronic ball valve 262 and the first check valve 254a are closed, an abnormality occurs in the butterfly valve determined to be broken, and the second communication unit 290 is connected. It can be provided to the driver’s terminal.

Accordingly, purification work on the liquid to be purified supplied to the centrifugal separation unit 220 and the gravity separation unit 230 can be continuously performed, and after a certain period of time from the time the valve is closed, the cutting oil purification vehicle 200 The operations of the centrifugal separator 220, the gravity separator 230, and the drain pump 256 can be stopped.

Here, the certain time is the initial operation time of the centrifugal separator 220, the time when the first valve of the centrifugal separator 220 is closed, and the centrifugal processing speed (ex. flow rate per hour according to turbidity) of the centrifugal separator 220. ), and based on the gravity separation processing speed (ex. flow rate per hour according to turbidity) of the gravity separation unit 230, the amount of cutting oil waste liquid delivered to the centrifugal separation unit 220, or the amount of waste cutting fluid delivered to the piping unit 250. 1 This is a time proportional to the amount of waste cutting fluid existing from the check valve 254a to the inside of the centrifugal separator 220.

On the other hand, when an abnormality is detected in the flow meter 252c close to the second check valve 254b, the cutting oil purification vehicle 200 closes the electronic ball valve 262 and the first check valve 254a and performs centrifugal separation. Stop the operation of the unit 220, the gravity separator 230, the mono pump 251, the wash water pump 261, and the drain pump 256, and prevent the occurrence of an abnormality in the second check valve (254b). 2 It can be provided to the driver's terminal through the communication unit 290.

Meanwhile, in the control method of the clean tank 100 that performs sensing of stored refined oil of the present invention, as shown in FIG. 3, the clean tank 100 detects stored refined oil through the first sensor unit 130. In monitoring the temperature, humidity, and acidity (S310) and performing step S320, the clean tank 100 includes a temperature control unit that cools or heats the refined oil, and a humidity control unit that maintains the humidity at a constant value. , and a pH control unit that controls the acidity of the refined oil are controlled to maintain the temperature, humidity, and acidity of the stored refined oil at constant values (S320).

Meanwhile, the clean tank 100 includes the storage amount of cutting oil waste liquid from the cutting oil purification vehicle 200, the expected purification completion time for the cutting oil waste liquid, the expected acidity of the refined oil to be obtained by purifying the cutting oil waste liquid, and the cutting oil waste liquid to be obtained by purifying the waste cutting fluid. The estimated amount of refined oil can be obtained.

At this time, when the expected acidity is not included in the critical range, the clean tank 100 calculates the difference value that the expected acidity has from the critical range, and sets the maximum capacity in inverse proportion to the calculated difference value stored in the first storage unit 110. Calculated based on the storage amount of refined oil.

For example, the refined oil stored in the first storage unit 110 is maintained at a certain acidity and ensures a high recycling rate. However, if the quality deteriorates due to an increase in acidity within a short period of time due to additional refueling, the recycling rate may rapidly decrease.

Therefore, in calculating the maximum capacity, the clean tank 100 is expected to have an expected acidity when refined oil to be obtained by refining cutting oil waste liquid, which is expected to be additionally refueled, is added to the refined oil stored in the first storage unit 110. Based on , the critical range can be maintained and the maximum capacity, which is the maximum amount that can be accommodated in the first storage unit 110, can be calculated.

The maximum capacity is proportional to the capacity for additional refueling in the first storage unit 110 and the expected acidity, and is inversely proportional to the difference value that the expected acidity has from the critical range.

At this time, when the expected amount of refined oil exceeds the maximum capacity, the clean tank 100 restricts the opening and closing of the second check valve 254b of the cutting oil purification vehicle 200 through the first communication unit 140 to refuel. The inflow of refined oil into the fuel port 120 through the gun 255 is restricted, that is, the inflow is not permitted.

Additionally, the clean tank 100 obtains the expected time required from each of the plurality of vehicles including the cutting oil purification vehicle 200, and calculates the expected refueling start time for each of the plurality of vehicles based on the estimated time required. do.

Thereafter, the clean tank 100 is configured to store a plurality of fuels based on the capacity of the first storage unit 110, the amount of refined oil stored in the first storage unit 110, the expected amount for each of the plurality of vehicles, and the expected refueling start time. Among the vehicles, at least one vehicle to be matched and dispatched to the first storage unit 110 is selected.

The clean tank 100 monitors the storage amount of refined oil stored in the first storage unit 110, and the storage amount identified according to the monitoring, at least one waste liquid recovery site for each of all vehicles, a recovery date for each waste liquid recovery location, and a recovery amount. Based on the average daily refined volume, you can select at least one day to refuel with refined oil.

Accordingly, when selecting at least one vehicle, at least one vehicle is reselected for each time on the selected date to generate a dispatch schedule, and the generated dispatch schedule is entered into the dispatch schedule through the first communication unit 120. Can be provided for included vehicles.

At this time, the dispatch schedule may be provided to the vehicle a certain time before the vehicle is dispatched, or a certain date before the vehicle is dispatched.

Meanwhile, the storage amount of refined oil stored in the first storage unit 110 may be reduced by being moved to a separate storage unit or used by a person such as a gas station manager.

In an embodiment, the clean tank 100 stores the amount of refined oil stored in the first storage unit 110, the acidity of the refined oil stored in the first storage unit 110, and the refueling gun registered through the second control unit 290. Based on the fueling rate (e.g., flow rate per hour), maximum capacity, and expected acidity through (255), the injection rate (e.g., flow rate per hour) of the neutral agent can be calculated.

The clean tank 100 adjusts the opening degree of the neutral agent control valve based on the calculated injection speed of the neutral agent and sets the neutral agent injection speed to the calculated injection speed of the neutral agent, thereby discharging the neutral agent through the fuel gun. It is possible to maintain the acidity in the critical range by mixing the refined oil that is refueled in real time with the refined oil stored in the first storage unit 110 and simultaneously injecting an appropriate amount of neutralizing agent so that the acidity does not exceed the critical range.

The steps of the method or algorithm described in connection with embodiments of the present invention may be implemented directly in hardware, implemented as a software module executed by hardware, or a combination thereof. The software module may be RAM (Random Access Memory), ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), Flash Memory, hard disk, removable disk, CD-ROM, or It may reside on any type of computer-readable recording medium well known in the art to which the present invention pertains.

Additionally, different embodiments of the present invention may complement or be combined with each other.

The components of the present invention may be implemented as a program (or application) and stored in a medium in order to be executed in conjunction with a hardware computer. Components of the invention may be implemented as software programming or software elements, and similarly, embodiments may include various algorithms implemented as combinations of data structures, processes, routines or other programming constructs, such as C, C++, , it can be implemented in a programming or scripting language such as Java, assembler, Python, etc. Functional aspects may be implemented as algorithms running on one or more processors.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

100: Clean tank
110: first storage unit
120: fuel outlet
130: first sensor unit
140: 1st Communications Department
150: first control unit
200: Cutting oil refining vehicle
210: second storage unit
220: centrifugal separation unit
221: Sludge discharge box
230: Specific gravity separation unit
240: Third storage unit
250: Plumbing department
250a: branch line
250b: integrated line
251: mono pump
252a, 252b, 252c: flow meter
253a, 253b, 253c: butterfly valve
254a, 254b: check valve
255: Joo Yoo-geon
256: drain pump
260: washing unit
261: Washing water pump
262: Electronic ball valve
270: second sensor unit
280: 2nd Communication Department
290: second control unit

Claims (6)

In the control method of a clean tank,
Monitoring the temperature, humidity, and acidity (pH, power of hydrogen) of the stored refined oil in the clean tank; and
maintaining the temperature, humidity, and acidity of the stored refined oil at constant values in the clean tank;
Obtaining, by the clean tank, a storage amount of cutting oil waste liquid from a cutting oil purification vehicle, an expected refining completion time for the cutting oil waste liquid, an expected acidity of refined oil to be obtained by refining the cutting oil waste liquid, and an expected amount of refined oil to be obtained by refining the cutting oil waste liquid. ;
When the expected acidity is not included in the critical range, calculating, by the clean tank, a difference value that the expected acidity has from the critical range;
calculating a maximum capacity inversely proportional to the calculated difference value based on the stored amount of refined oil; and
When the expected amount exceeds the maximum capacity, the clean tank restricts the opening and closing of the check valve of the cutting oil purification vehicle, thereby limiting refined oil from flowing into the filling port of the clean tank through the fuel gun of the cutting oil purification vehicle. Including the step of doing;
The step of maintaining the temperature, humidity, and acidity at constant values,
Control is performed on each of the temperature control unit that cools or heats the stored refined oil, the humidity control unit that maintains the humidity inside the clean tank at a constant value, and the pH control unit that controls the acidity of the refined oil, A control method for a clean tank, characterized in that the temperature, humidity, and acidity for refined oil are maintained at constant values. delete According to claim 1,
In the control method of the clean tank,
Obtaining, by the clean tank, an estimated time required from each of a plurality of cutting oil purification vehicles;
calculating, by the clean tank, an expected refueling start time for each of the plurality of cutting oil purification vehicles based on the expected time required;
The clean tank, based on the refined oil storage capacity inside the clean tank, the amount of refined oil stored, and the expected amount and expected refueling start time to be obtained by purifying the cutting oil waste liquid for each of the plurality of cutting oil purification vehicles, the plurality of A method for controlling a clean tank, further comprising: selecting at least one vehicle to be dispatched in matching with the clean tank among cutting oil refining vehicles. According to clause 3,
In the control method of the clean tank,
Monitoring, by the clean tank, a storage amount of the stored refined oil; and
Selecting at least one day to refuel refined oil based on the storage amount identified according to the monitoring, at least one waste liquid collection site for each of all vehicles, a collection date for each waste liquid recovery location, and an average refined volume for each recovery date; It further includes,
The step of selecting the vehicle is,
Among the selected vehicles, reselect at least one vehicle by time for the selected date to create a dispatch schedule,
A method for controlling a clean tank, further comprising providing the dispatch schedule to vehicles included in the dispatch schedule. A cutting oil refining vehicle that purifies and transports cutting oil waste liquid; and
In the system comprising: the clean tank of claim 1, which obtains refined oil from the cutting oil refining vehicle, and stores and maintains the refined oil,
The clean tank is,
a first storage unit that stores the refined oil;
a fuel inlet, which is an inlet through which the refined oil is injected from the cutting oil purification vehicle into the first storage unit;
A first sensor unit including a temperature sensor, a humidity sensor, and a hydrogen ion concentration sensor;
a first communication unit communicating with the cutting oil refining vehicle; and
Including a first control unit connected to the first storage unit, the fuel filler, the first sensor unit, and the first communication unit, respectively,
Maintaining the temperature, humidity, and acidity (pH, power of hydrogen) of the refined oil stored inside the first storage unit at constant values, respectively,
Through the first communication unit, the storage amount of cutting oil waste liquid from the cutting oil purification vehicle, the expected purification completion time for the cutting oil waste liquid, the expected acidity of the refined oil to be obtained by refining the cutting oil waste liquid, and the refined oil to be obtained by refining the cutting oil waste liquid. Obtain the expected amount of
Obtaining an estimated travel time from each of a plurality of vehicles, including the cutting oil refining vehicle,
Based on the obtained estimated time required, calculate an expected refueling start time for each of the plurality of vehicles,
Based on the capacity of the first storage unit, the amount of refined oil stored in the first storage unit, and the expected amount of refined oil to be obtained by refining the cutting oil waste liquid for each of the plurality of vehicles and the expected refueling start time, among the plurality of vehicles , The system is characterized in that it selects at least one vehicle to be dispatched by matching the first storage unit. delete