CN112221202A - Remote metering method and device for oil discharge weighing of oil-water separation device - Google Patents
Remote metering method and device for oil discharge weighing of oil-water separation device Download PDFInfo
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- CN112221202A CN112221202A CN202011156642.2A CN202011156642A CN112221202A CN 112221202 A CN112221202 A CN 112221202A CN 202011156642 A CN202011156642 A CN 202011156642A CN 112221202 A CN112221202 A CN 112221202A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
- B01D17/0208—Separation of non-miscible liquids by sedimentation
- B01D17/0214—Separation of non-miscible liquids by sedimentation with removal of one of the phases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/12—Auxiliary equipment particularly adapted for use with liquid-separating apparatus, e.g. control circuits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G17/00—Apparatus for or methods of weighing material of special form or property
- G01G17/04—Apparatus for or methods of weighing material of special form or property for weighing fluids, e.g. gases, pastes
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Abstract
The invention discloses a remote metering method and a remote metering device for oil discharge and weighing of an oil-water separation device, relates to a metering method and a metering device for a separated object in oil-water separation, and aims to solve the problem that the existing metering mode cannot realize instant accumulative metering of separated oil11, otherwise K10; when the oil receiving container is placed at the weighing device, the weighing device is linked with the water replenishing electromagnetic valve to be opened, and the state quantity K of the water replenishing electromagnetic valve is enabled21, otherwise K2＝0。
Description
Technical Field
The invention relates to a method and a device for metering a separated substance in oil-water separation, in particular to a method and a device for remote instant metering of oil discharge and weighing.
Background
The oil separated by the existing oil-water separation device is collected by a plurality of containers and then uniformly weighed, so that the existing metering mode cannot realize the real-time accumulative metering of the separated oil.
Disclosure of Invention
The invention aims to solve the problem that the existing metering mode cannot realize the real-time accumulative metering of the separated oil, and provides a remote metering method and a remote metering device for oil discharge and weighing of an oil-water separation device.
The invention relates to a remote metering method for oil discharge and weighing of an oil-water separation device, which is realized based on a manual operation process for oil discharge and weighing of the oil-water separation device11, otherwise K1＝0；
When the oil receiving container is placed at the weighing device, the weighing device is linked with the water replenishing electromagnetic valve to be opened, and the state quantity K of the water replenishing electromagnetic valve is enabled21, otherwise K2＝0；
Based on the oil discharge process of the current period, the method comprises the following steps:
first, when K is detected1When the oil is equal to 1, recording the initial oil discharge amount of the oil discharge;
second step, on the state quantity K of the liquid level switch1On the basis of 1, detecting the state quantity K2If K is2Recording the initial weight of the oil collecting container as 1; recording the real-time weight of the oil receiving container in the oil discharging process;
thirdly, detecting the state quantity K2If K is2Recording the real-time weight of the oil collection container at the moment, and calculating to obtain the accumulated oil discharge amount of the current period, wherein the accumulated oil discharge amount of the current period is the oil collection amount + the initial oil discharge amount at the moment; the oil recovery amount is the real-time weight of the oil recovery container at the moment-the initial weight of the oil recovery container;
fourthly, detecting the state quantity K2If detecting K2Carrying out oil drainage for the next time, enabling the initial oil drainage amount of the oil drainage for the next time to be equal to the accumulated oil drainage amount of the current period obtained in the third step, and transferring to the second step;
while the third step and the fourth step are being executed, a state quantity K is detected1When detecting K1When the value is 0, the oil discharge of the current period is finished.
Further, the fourth step further includes the steps of:
after finishing the oil discharge in the current period, updating the number of the oil discharge periods, and enabling the number of the oil discharge periods after finishing the oil discharge in the current period to be equal to the number of the oil discharge periods before the oil discharge in the current period plus 1.
Further, the fourth step further includes the steps of:
and updating the total oil drainage quantity, wherein the updated total oil drainage quantity is equal to the sum of the accumulated oil drainage quantity of the current period, the total oil drainage quantity of the previous period and the error correction quantity.
Further, the error correction amount is equal to the ratio of the weighing error to the number of times of oil drainage.
Further, the second step further comprises the steps of:
when the instant oil recovery amount of the oil receiving container is equal to the set full weight of the oil receiving container, sending out a capacity full prompt signal of the oil receiving container;
the third step further comprises the steps of:
and clearing the prompt signal of full capacity of the oil receiving container sent by the second step.
The invention relates to a remote metering device for oil discharge and weighing of an oil-water separation device, which comprises:
the device comprises a liquid level switch state detection module, a weigher data acquisition module, a water supplementing solenoid valve state detection module and a metering processing module;
the liquid level switch state detection module is simultaneously connected with the liquid level switch and the metering processing module and is used for detecting the state quantity K of the liquid level switch1And sending the data to a metering processing module;
the weighing device data acquisition module is connected with the water replenishing electromagnetic valve and used for detecting the placement state of the oil receiving containerThe state quantity K of the water replenishing electromagnetic valve is changed by means of linkage of the placement state of the weighing device and the opening or closing of the water replenishing electromagnetic valve2Assigning values of (1);
the water replenishing electromagnetic valve state detection module is simultaneously connected with the water replenishing electromagnetic valve and the metering processing module and used for detecting the state quantity K of the water replenishing electromagnetic valve2And sending the data to a metering processing module;
the remote metering device further comprises a storage device and a computer program stored in the storage device and executable on a metering processing module, the metering processing module executing the computer program to implement the method according to any one of claims 1 to 5.
The invention has the beneficial effects that:
the method can transmit the weighing data to the calculation center, the calculation center gives the oil receiving amount including the replacement of a plurality of containers at this time through data processing, and also gives the total oil receiving amount and the oil receiving times in a unit period, thereby avoiding the generation of error data of the oil receiving amount and the oil receiving times caused by the replacement of the oil receiving containers, and providing remote monitoring data for the discharge and the recovery of the oil-water separation device.
Drawings
Fig. 1 is a flowchart of a remote metering method for weighing oil discharged from an oil-water separation device according to a first embodiment.
Detailed Description
In a first specific embodiment, in the remote metering method for oil discharge and weighing of the oil-water separation device in this embodiment, one oil-water separation device is regarded as a user, the liquid level switch state detection module, the weighing device data acquisition module, the water supplement solenoid valve state detection module and the storage device in the remote metering device may be located at one position with the oil-water separation device, and after acquiring original oil discharge data, the original oil discharge data is sent to an upper computer configured at a remote end to be processed to obtain the number of oil collection cycles of each oil-water separation device, the number of oil collection times of each cycle, the accumulated oil discharge amount, the total oil discharge amount, and the like; or the liquid level switch state detection module, the weigher data acquisition module, the water replenishing electromagnetic valve state detection module and the storage device are all configured at a remote end and used as a part of or an external device of the upper computer, and the oil discharge data acquired remotely is processed through the upper computer.
One upper computer can correspond to a plurality of users, and the upper computer can also correspond to a plurality of browsing terminals simultaneously for display on the browsing terminals after forming a data report, and a worker can check data through the browsing terminals.
Wherein the method mainly introduces K1、K2Two variables, K1Indicating the state quantity of the liquid level switch when K1When the water level is 0, the liquid level switch is in a closed state, the lower water outlet is opened, and water flows out of the lower water outlet and is in an oil-water separation state; when K is1When the oil level is 1, the liquid level switch is in an on state, the lower water outlet is closed, and water flows out from the high water outlet and enters an oil discharging state. K2Indicating the state quantity of the water replenishing solenoid valve when K2When the water level is 0, the water replenishing electromagnetic valve is in a closed state, and the water level of the water replenishing electromagnetic valve is at a low level when the water is not replenished; when K is2When the oil level is 1, the water replenishing electromagnetic valve is in an open state, the water replenishing electromagnetic valve replenishes water to enable the liquid level to be at a high level, and floating oil is discharged.
As shown in fig. 1, the remote metering method specifically includes:
firstly, turning on a power supply to close a lower water outlet;
specifically, the power supply is turned on, the liquid level switch closes the lower water outlet, and the liquid level is raised to the high water outlet after water storage.
When the power supply is linked with the liquid level switch, the liquid level switch is started when the power supply is turned on, and the state quantity K of the liquid level switch at the moment1The lower water outlet is controlled to be opened and closed by a lower water outlet electromagnetic valve 1.
I.e. the state quantity K of the liquid level switch1When the water level is 1, the lower water outlet electromagnetic valve is closed, and then the lower water outlet is closed.
When the oil discharge process of the current period is started, the initial oil discharge amount of the oil discharge is recorded, and if the oil discharge is the first oil discharge of the current period, the initial oil discharge amount of the oil discharge is zero, namely the initial oil discharge amount Q00; if the oil drainage is not the first oil drainage of the periodic oil drainage, the initial oil drainage quantity is determined by the oil drainage quantities of the previous times.
The oil discharging operation of the embodiment is simple and convenient, only the power switch needs to be turned on (if the liquid level switch is not interlocked, the liquid level switch also needs to be turned on together), at the moment, the oil discharging process of one period starts, the oil receiving container can be replaced in one period, the power switch is turned off after the oil taking is finished (if the liquid level switch is not interlocked, the liquid level switch also needs to be reset together), and at the moment, the oil discharging process of one period is finished.
Secondly, placing an oil collecting container and enabling a water replenishing port to be automatically opened;
specifically, the oil receiving container is placed on a weighing device, the water supplementing electromagnetic valve is automatically opened at the moment, the water supplementing opening is automatically opened for supplementing water, and the water storage enables the liquid level to be improved.
The placement detection of the oil receiving container is realized through a weighing device, the weighing device detects whether the oil receiving container is placed or taken away (no weight exists after the weight is carried out), the weighing device and a water supplementing electromagnetic valve are linked, the water supplementing electromagnetic valve is arranged at a water supplementing opening and controls the opening and closing of the water supplementing opening, and therefore the placement state of the oil receiving container determines K2An assignment of (2). When the electromagnetic valve of the water replenishing port is opened K21, i.e. the state quantity K at the level switch1On the basis of 1, the state quantity K is detected2When the value is 1, the water replenishing port is in an open state.
Measuring the initial weight of the oil receiving container, and manually opening an oil discharging nozzle;
when the oil receiving container is placed on the weighing device, the initial weight of the oil receiving container is measured, and meanwhile, an operator opens the oil discharging nozzle for subsequent oil discharging. Setting the initial oil receiving container weight M0。
Step four, the oil-water separation device enters an oil discharge state: measuring the real-time weight of the oil receiving container in real time;
specifically, when the floating oil layer rises to the position of the oil discharging nozzle, the floating oil is discharged into the oil receiving container through the oil discharging nozzle, and meanwhile, the weighing device measures the real-time weight of the oil receiving container in real time, and the measuring process is real-time. Setting the real-time weight M of the oil receiving container along with the water replenishing and oil discharging1。
Fifthly, detecting whether the container is taken away or not; if yes, executing the sixth step, otherwise executing the seventh step;
in particular, in the course of oil drainage, whether the container is taken away or not is detected, the taking away of the oil receiving container can be sudden at any time, that is, the oil receiving container can be taken away no matter whether the oil receiving container is full or not, therefore, the weigher detects whether the oil receiving container is placed or taken away (without weight after prior weight) in real time, the state quantity K2The value is determined by whether the oil receiving container is placed or not, and is 1 or not, and is 0 (the condition of jumping from 1 to 0). I.e. the state quantity K of the level switch1On the basis of 1, the state quantity K is detected2＝0。
Sixthly, manually closing the oil discharge nozzle, and executing the eighth step;
the closing of the drain nozzle is to prevent the continued water storage, which may result in the oil drain not being accommodated in the oil collecting container.
Seventhly, detecting whether the real-time weight of the container is less than the full weight of the container; if yes, returning to the fourth step, otherwise, taking the accommodating container away and executing the eighth step;
and on the premise that the oil receiving container is not taken away, detecting the real-time weight of the container in real time, comparing the real-time weight with the full weight of the container prestored in the storage device, judging whether the real-time weight of the oil receiving container is smaller than the full weight of the oil receiving container, if so, indicating that the capacity of the oil receiving container is not full, continuing to accommodate the oil receiving container, and returning to the fourth step to detect the real-time weight of the oil receiving container.
If the real-time weight of the oil receiving container is larger than or equal to the full weight of the oil receiving container (generally, the real-time weight is not larger than the full weight), the capacity of the oil receiving container is full, oil drainage needs to be finished or a new oil receiving container needs to be replaced for next oil drainage, an oil receiving container full prompt signal can be sent to the alarm device, and the alarm device can remind a worker to take the oil receiving container away in an audible and visual (display and/or sound) alarm mode. When M is1≥MIs full ofWhen (M)Is full ofThe set full weight of the oil receiving container) to give a capacity full prompt of the oil receiving container to prevent the waste oil from overflowing.
Eighthly, automatically closing the water replenishing port;
specifically, when the oil receiving container is taken out or taken out due to the fact that the oil receiving container is full, the water replenishing electromagnetic valve is automatically closed to stop replenishing water, and the oil discharging is finished.
The weighing device and the water replenishing electromagnetic valve are linked, after the weighing device detects that the oil collecting container is taken away, the linked water replenishing electromagnetic valve is closed, and the water replenishing port is automatically closed, namely the state quantity K of the liquid level switch1On the basis of 1, the state quantity K is detected2When the value is 0, the water replenishing port is closed.
Ninthly, acquiring the oil recovery amount of the oil recovery container; if the oil needs to be drained continuously, returning to execute the second step; if the oil does not need to be drained continuously, executing a tenth step;
specifically, the real-time weight of the container deducts the initial weight of the oil receiving container at the moment, and the oil receiving amount is the time oil receiving amount.
At this time (when the oil receiving container is taken away or full), the difference between the real-time weight and the initial weight of the oil receiving container is the oil receiving amount M of the container1-M0And automatically eliminating the full prompt signal of the oil receiving container generated in the seventh step.
Step ten, manually closing the oil discharge nozzle, and calculating to obtain the sum of the oil receiving amount of each time as the accumulated oil discharge amount of the current period;
the remote metering method can be realized by one-cycle oil drainage, namely the time from power on to power off, and one-cycle oil drainage comprises at least one oil drainage process. Each oil recovery is the 'oil recovery at this time' in the process of multiple oil discharge in one period.
That is, the accumulated oil drainage amount of the current period is M after the first oil drainage is finished1-M0+Q0(Q00), the initial oil discharge quantity Q of the second oil discharge is made0＝M1-M0+Q0(at this time Q0Also indicates the cumulative amount of oil drained for the first time). Analogizing in turn to obtain the accumulated oil discharge quantity Q of the current period0。
The tenth step, calculating to obtain the cumulative number of the oil drainage cycles plus 1 and the cumulative oil drainage quantity of each cycle is the total oil drainage quantity;
namely, the updated total oil drainage quantity is equal to the sum of the accumulated oil drainage quantity of the current period and the total oil drainage quantity (and the error correction quantity) of the previous period.
That is, the number C of oil drain cycles is incremented by 1 after each oil drain cycle is ended, so as to obtain C ═ C + 1. And the total oil discharge quantity is Q ═ the accumulated oil discharge quantity Q of current period0+ total oil drainage amount of previous cycle Q + δ Q (δ Q is error correction amount, δ Q is weighing error/C).
Step ten, the power supply is turned off, and the lower water outlet is opened;
when the power supply is linked with the liquid level switch, the liquid level switch is closed when the power supply is turned off, and then the liquid level switch is turned on K1When the oil level is equal to 0, the liquid level switch is reset, and the oil discharging process of one period is finished.
Specifically, after the oil discharge process of the cycle is finished, the power supply is turned off, the liquid level switch is reset, water flows out from the lower water outlet and enters the oil-water separation state again, and the final accumulated result (accumulated oil discharge) of the oil receiving weight is the oil discharge amount of the cycle. The accumulation of the oil discharge amount in each period is the total oil discharge amount, and the accumulation of the oil discharge in each time is 1 to the total oil discharge times.
And the calculation results of the data in a certain time can be extracted through a system background of the upper computer.
Claims (6)
1. A remote metering method for oil discharge and weighing of an oil-water separation device is characterized in that,
the method is realized based on the manual operation process of oil discharging and weighing of the oil-water separation device, when a liquid level switch of the oil-water separation device is turned on or a power switch is linked with the liquid level switch to be turned on, the state quantity K of the liquid level switch11, otherwise K1＝0；
When the oil receiving container is placed at the weighing device, the weighing device is linked with the water replenishing electromagnetic valve to be opened, and the state quantity K of the water replenishing electromagnetic valve is enabled21, otherwise K2＝0；
Based on the oil drainage process of the current period, the method comprises the following steps:
first, when K is detected1When the oil is equal to 1, recording the initial oil discharge amount of the oil discharge;
second step, on the state quantity K of the liquid level switch1On the basis of 1, detecting the state quantity K2If K is2Recording the initial weight of the oil collecting container as 1; recording the real-time weight of the oil receiving container in the oil discharging process;
thirdly, detecting the state quantity K2If K is2Recording the real-time weight of the oil collection container at the moment, and calculating to obtain the accumulated oil discharge amount of the current period, wherein the accumulated oil discharge amount of the current period is the oil collection amount + the initial oil discharge amount at the moment; the current oil recovery amount is the real-time weight of the oil recovery container at the moment-the initial weight of the oil recovery container;
fourthly, detecting the state quantity K2If detecting K2Carrying out oil drainage for the next time, enabling the initial oil drainage amount of the oil drainage for the next time to be equal to the accumulated oil drainage amount of the current period obtained in the third step, and transferring to the second step;
while the third step and the fourth step are being executed, a state quantity K is detected1When detecting K1When the value is 0, the oil discharge of the current period is finished.
2. The remote metering method for oil discharge and weighing of an oil-water separator according to claim 1,
the fourth step further comprises the steps of:
after finishing the oil discharge in the current period, updating the number of the oil discharge periods, and enabling the number of the oil discharge periods after finishing the oil discharge in the current period to be equal to the number of the oil discharge periods before the oil discharge in the current period plus 1.
3. The remote metering method for oil discharge and weighing of an oil-water separator according to claim 2,
the fourth step further comprises the steps of:
and updating the total oil drainage quantity, wherein the updated total oil drainage quantity is equal to the sum of the accumulated oil drainage quantity of the current period, the total oil drainage quantity of the previous period and the error correction quantity.
4. The remote metering method for oil discharge and weighing of an oil-water separator as claimed in claim 3,
the error correction is equal to the ratio of the weighing error to the number of times of oil drainage.
5. The remote metering method for oil discharge and weighing of an oil-water separator as claimed in claim 3,
the second step further comprises the steps of:
when the instant oil recovery amount of the oil receiving container is equal to the set full weight of the oil receiving container, sending out a capacity full prompt signal of the oil receiving container;
the third step further comprises the steps of:
and clearing the prompt signal of full capacity of the oil receiving container sent by the second step.
6. The utility model provides a remote metering device who weighs to oil water separator oil extraction which characterized in that includes:
the device comprises a liquid level switch state detection module, a weigher data acquisition module, a water supplementing solenoid valve state detection module and a metering processing module;
the liquid level switch state detection module is simultaneously connected with the liquid level switch and the metering processing module and used for detecting the state quantity K of the liquid level switch1And sending the data to a metering processing module;
the weighing device data acquisition module is connected with the water replenishing electromagnetic valve and used for detecting the placement state of the oil receiving container, and the water replenishing electromagnetic valve is linked to be opened or closed according to the placement state of the weighing device to change the state quantity K of the water replenishing electromagnetic valve2Assigning values of (1);
the water replenishing electromagnetic valve state detection module is connected with the water replenishing electromagnetic valve and the metering processing module simultaneously and used for detecting the state quantity K of the water replenishing electromagnetic valve2And sending the data to a metering processing module;
the remote metering device further comprises a storage device and a computer program stored in the storage device and capable of running on a metering processing module, wherein the metering processing module executes the computer program to realize the method according to any one of claims 1 to 5.
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