CN113044413A - Oil storage tank heating system - Google Patents
Oil storage tank heating system Download PDFInfo
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- CN113044413A CN113044413A CN201911379598.9A CN201911379598A CN113044413A CN 113044413 A CN113044413 A CN 113044413A CN 201911379598 A CN201911379598 A CN 201911379598A CN 113044413 A CN113044413 A CN 113044413A
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- storage tank
- oil storage
- temperature
- liquid level
- control device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/74—Large containers having means for heating, cooling, aerating or other conditioning of contents
- B65D88/744—Large containers having means for heating, cooling, aerating or other conditioning of contents heating or cooling through the walls or internal parts of the container, e.g. circulation of fluid inside the walls
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- Mechanical Engineering (AREA)
- Control Of Temperature (AREA)
Abstract
The application discloses oil storage tank heating system belongs to crude oil warehousing and transportation field. The system comprises: the device comprises a detection device, a control device and an execution device; the output end of the detection device is connected with the input end of the control device, and the control end of the control device is connected with the control end of the execution device; the detection device transmits a first generated electric signal corresponding to the temperature in the oil storage tank and a second generated electric signal corresponding to the liquid level in the oil storage tank to the control device; the control device determines a temperature value in the oil storage tank according to the first electric signal and determines a liquid level value in the oil storage tank according to the second electric signal, and controls the execution device to heat the liquid in the oil storage tank according to the temperature value and the liquid level value. Because the automatic control is carried out according to the temperature and the liquid level in the oil storage tank, the parameter setting is reasonable, so that the heating time can be accurately controlled, the phenomenon that the liquid in the oil storage tank is too long in heating time or is short in heating time can be avoided, and the actual requirements of a production field are further met.
Description
Technical Field
The application relates to the field of crude oil storage and transportation, in particular to an oil storage tank heating system.
Background
Because the individual wells of an oil field are often far away from a crude oil gathering and transportation station, crude oil produced in the individual wells of the oil field needs to be temporarily stored in an oil storage tank. When the crude oil stored in the oil storage tank reaches a certain amount, the crude oil is transported to a crude oil gathering and transportation station by the oil tanker for processing. But in the course of crude oil warehousing and transportation, the temperature in the oil storage tank can reduce gradually to lead to the crude oil in the oil storage tank can solidify gradually, the viscosity increases, can't flow out by in the oil storage tank, seriously influence crude oil hauling work. Therefore, the oil storage tank needs to be heated, and crude oil in the oil storage tank is prevented from being solidified.
At present, an electric heating rod is arranged in an oil storage tank, then a technician estimates the heating time, manually turns on the electric heating rod to heat crude oil, and then manually turns off the electric heating rod to stop heating. Therefore, the electric heating rod is started and stopped completely according to the experience of technical personnel, so that the problems that the cost of electricity charge is high due to overlong heating time of crude oil, or the temperature is too low due to shorter heating time of the crude oil, the crude oil cannot be timely pulled and transported and the like are easily caused, and the requirements of actual conditions of a production field cannot be met.
Disclosure of Invention
The application provides an oil storage tank heating system, can solve the problem that can't satisfy the needs of production site actual conditions among the correlation technique. The technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a heating system for an oil storage tank, the system including: the device comprises a detection device, a control device and an execution device;
the output end of the detection device is connected with the input end of the control device, and the control end of the control device is connected with the control end of the execution device;
the detection device generates a first electric signal corresponding to the temperature in the oil storage tank and a second electric signal corresponding to the liquid level in the oil storage tank, and transmits the first electric signal and the second electric signal to the control device;
the control device determines a temperature value in the oil storage tank according to the first electric signal and a liquid level value in the oil storage tank according to the second electric signal, and controls the execution device to heat the liquid in the oil storage tank according to the temperature value and the liquid level value.
Optionally, the detection device comprises a temperature sensor, a liquid level sensor and a transmitter;
the temperature sensor and the liquid level sensor are both positioned in the oil storage tank;
the output end of the temperature sensor is connected with the first input end of the transmitter, and the output end of the liquid level sensor is connected with the second input end of the transmitter;
the first output end of the transmitter is connected with the first input end of the control device, and the second output end of the transmitter is connected with the second input end of the control device.
Optionally, the liquid level sensor is a magnetic control sensor.
Optionally, when the temperature value is less than or equal to a first temperature threshold value and the liquid level value is greater than or equal to a first liquid level threshold value, the control device controls the execution device to heat the liquid in the oil storage tank.
Optionally, after the control device controls the execution device to heat the liquid in the oil storage tank, when the temperature value is greater than the first temperature threshold value, and/or when the liquid level value is less than the first liquid level threshold value, the control device controls the execution device to stop heating the liquid in the oil storage tank.
Optionally, the actuating device comprises a switch and an electrical heating rod;
the electric heating rod is located inside the oil storage tank, the first end of the switch is connected with the power supply, the second end of the switch is connected with the electric heating rod, and the control end of the switch is connected with the control end of the control device.
Optionally, the switch is a relay, and the execution device further comprises an ac contactor;
and the alternating current contactor is connected between the relay and the electric heating rod.
Optionally, the system further comprises a display device, and the communication end of the control system is connected with the communication end of the display device;
the control device sends the temperature value and the liquid level value to the display device, and the display device displays the temperature value and the liquid level value; and/or
The control device sends the heating data of the oil storage tank to the display device, and the display device displays the heating data.
Optionally, the display device displays first warning information when the temperature value is greater than or equal to a second temperature threshold, and displays second warning information when the liquid level value is greater than or equal to a second liquid level threshold.
Optionally, when receiving a first setting instruction, the display device sets a heating parameter for controlling the execution device according to the first setting instruction; and/or when the display device receives a second setting instruction, setting alarm parameters for indicating abnormal conditions according to the second setting instruction.
The technical scheme provided by the application can at least bring the following beneficial effects:
because the detection device can automatically detect the temperature and the liquid level in the oil storage tank, the control device can automatically control the execution device to heat the liquid in the oil storage tank according to the detection result of the detection device. Therefore, the oil storage tank heating system can realize automatic control, thereby reducing the labor intensity and improving the working efficiency. And because the automatic control is carried out according to the temperature and the liquid level in the oil storage tank, the parameter setting is reasonable, so the heating time can be accurately controlled, the problems that the electricity cost is high due to overlong heating time of the liquid in the oil storage tank, or the temperature is too low due to shorter heating time of the liquid in the oil storage tank, the oil well is shut down and the production is stopped can be avoided, and the like, and the actual requirements of a production field are further met.
Drawings
Fig. 1 is a schematic structural diagram of a first storage tank heating system provided in an embodiment of the present application;
fig. 2 is a schematic structural diagram of a second storage tank heating system provided in the embodiment of the present application;
FIG. 3 is a schematic diagram of a third storage tank heating system provided in accordance with an embodiment of the present application;
FIG. 4 is a schematic diagram of a fourth storage tank heating system according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a fifth storage tank heating system provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of a sixth storage tank heating system provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of a seventh storage tank heating system according to an embodiment of the present application.
Reference numerals:
1: a detection device; 1 a: an output of the detection device; 2: a control device; 2 a: an input of a control device; 2 b: a control terminal of the control device; 2 c: a first input of a control device; 2 d: a second input of the control device; 2 e: a communication end of the control system; 3: an execution device; 3 a: a control end of the execution device; 4: a temperature sensor; 4 a: an output of the temperature sensor; 5: a liquid level sensor; 5 a: an output end of the liquid level sensor; 6: a transmitter; 6 a: a first input of the transmitter; 6 b: a second input of the transmitter; 6 c: a first output of the transmitter; 6 d: a second output of the transmitter; 7: a switch; 7 a: a first terminal of a switch; 7 b: a second terminal of the switch; 7 c: a control terminal of the switch; 8: an electrical heating rod; 9: a power source; 10: a relay; 11: an AC contactor; 12: a display device; 12 a: a communication terminal of the display device; 13: an upper computer; 14: configuration software in the upper computer; 15: a configuration interface in the upper computer; 16: and a power supply device.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a heating system for an oil storage tank according to an embodiment of the present disclosure. Referring to fig. 1, the system includes: a detection device 1, a control device 2 and an execution device 3; the output 1a of the detection device 1 is connected to the input 2a of the control device 2, and the control 2b of the control device 2 is connected to the control 3a of the actuator 3.
The detection device 1 generates a first electric signal corresponding to the temperature in the oil storage tank and a second electric signal corresponding to the liquid level in the oil storage tank, and transmits the first electric signal and the second electric signal to the control device 2; the control device 2 determines a temperature value in the oil storage tank according to the first electric signal and a liquid level value in the oil storage tank according to the second electric signal, and controls the execution device 3 to heat the liquid in the oil storage tank according to the temperature value and the liquid level value.
The detection device 1 is a device for detecting the temperature and the liquid level in the oil storage tank, and is capable of outputting a first electrical signal and a second electrical signal corresponding to the temperature and the liquid level in the oil storage tank, respectively. The installation position of the detection device 1 may be preset according to the use requirement, for example, the detection device 1 may be installed inside an oil storage tank, which is not specifically limited in this embodiment of the present application.
The control device 2 is a device for analyzing the first electric signal and the second electric signal and issuing a control command to the execution device 3 based on the analysis result. The installation position of the control device 2 can be preset according to the use requirement, for example, the control device 2 can be installed in a control cabinet. The control device 2 may be a logic controller, a micro-program controller, etc., and its internal control program may be developed and independently written by a technician. For example, the control device 2 may be a PLC (Programmable Logic Controller), and the PLC may be a Mitsubishi FX3U-48MR PLC.
It is noted that the voltage used by the Mitsubishi FX3U-48MR PLC is 24V (volts) DC, and the PLC can receive analog quantity, convert the received analog quantity into digital quantity for processing, and then continue to convert the processed digital quantity into analog quantity for output.
The actuator 3 is a device for heating the liquid in the oil tank. The installation position of the actuating device 3 may be preset according to a use requirement, for example, the actuating device 3 may be installed inside an oil storage tank, which is not specifically limited in this embodiment of the present application.
Finally, the oil storage tank is a member for storing liquid (such as crude oil or the like). The shape of the oil storage tank can be preset according to the use requirement, for example, the oil storage tank can be a single-well overhead horizontal metal oil storage tank, the diameter of the oil storage tank can be 3m (meters), and the volume of the oil storage tank can be 50m3(cubic meter).
It should be noted that the detection device 1 may generate and output the first electrical signal and the second electrical signal corresponding to the temperature and the liquid level in the oil storage tank in real time, and the control device 2 may also determine the temperature value and the liquid level value in the oil storage tank in real time according to the currently received first electrical signal and second electrical signal, that is, the control device 2 may determine the temperature value and the liquid level value in the oil storage tank in real time.
Specifically, when the oil storage tank heating system is used for heating the liquid in the oil storage tank, the detection device 1 detects the temperature in the oil storage tank and the liquid level in the oil storage tank to obtain a first electric signal and a second electric signal, and the first electric signal and the second electric signal are sent to the control device 2. After receiving the first electrical signal and the second electrical signal, the control device 2 analyzes the first electrical signal and the second electrical signal, so as to determine a temperature value and a liquid level value in the oil storage tank. Finally, the control device 2 controls the execution device 3 to heat the liquid in the oil storage tank according to the temperature value and the liquid level value.
Because the detection device 1 can automatically detect the temperature and the liquid level in the oil storage tank, the control device 2 can automatically control the execution device 3 to heat the liquid in the oil storage tank according to the detection result of the detection device 1. Therefore, the oil storage tank heating system can realize automatic control, thereby reducing the labor intensity and improving the working efficiency. And because the automatic control is carried out according to the temperature and the liquid level in the oil storage tank, the parameter setting is reasonable, so the heating time can be accurately controlled, the problems that the electricity cost is high due to overlong heating time of the liquid in the oil storage tank, or the temperature is too low due to shorter heating time of the liquid in the oil storage tank, the oil well is shut down and the production is stopped can be avoided, and the like, and the actual requirements of a production field are further met.
Alternatively, referring to fig. 2, the detection device 1 comprises a temperature sensor 4, a level sensor 5 and a transmitter 6; the temperature sensor 4 and the liquid level sensor 5 are both positioned in the oil storage tank; the output end 4a of the temperature sensor 4 is connected with the first input end 6a of the transmitter 6, and the output end 5a of the liquid level sensor 5 is connected with the second input end 6b of the transmitter 6; a first output 6c of the transmitter 6 is connected to a first input 2c of the control device 2 and a second output 6d of the transmitter 6 is connected to a second input 2d of the control device 2.
The temperature sensor 4 may be a thermocouple, a thermistor, a resistance temperature detector, or the like, as long as it can function to detect temperature, and this embodiment of the present invention is not particularly limited thereto. The measurement range and the measurement precision of the temperature sensor 4 can be preset according to the use requirement, for example, the measurement range of the temperature sensor 4 can be-200-500 ℃, and the measurement precision can be B-level. Wherein, the B-level measurement precision indicates that when the measurement temperature is 0 ℃, the measurement error is within +/-0.3 ℃; when the measurement temperature is between-100 ℃ and 100 ℃, the measurement error is between +/-0.8 ℃. Since the temperature sensor 4 is located inside the oil tank, the temperature detected by the temperature sensor 4 is the temperature inside the oil tank.
In addition, the liquid level sensor 5 may be a magnetic control sensor or the like as long as it can detect the liquid level, and this is not specifically limited in the embodiment of the present application. The measuring range, the electric signal output range and the explosion-proof grade of the liquid level sensor 5 can be preset according to use requirements, for example, the measuring range of the liquid level sensor 5 can be 0-300 cm (centimeter), the electric signal output range can be 4-20 mA (milliampere), and the explosion-proof grade can be explosion-proof Exd II C. Since the liquid level sensor 5 is located inside the oil storage tank, the liquid level detected by the liquid level sensor 5 is the liquid level inside the oil storage tank.
Further, the transmitter 6 is a converter for converting the electric signals output from the temperature sensor 4 and the liquid level sensor 5 into electric signals that can be recognized by the control device 2. The transmission 6 may be a current transducer, a voltage transducer, or the like, as long as it can convert an electrical signal, and this embodiment of the present application is not particularly limited thereto.
Finally, output 1a of detection device 1 comprises a first output 6c and a second output 6d of transmitter 6, and input 2a of control device 2 comprises a first input 2c and a second input 2 d. Transmitter 6 can convert the electrical signal inputted from its first input terminal 6a to obtain a first electrical signal, and then output the first electrical signal from its first output terminal 6 c. Transmitter 6 can convert the electrical signal inputted from second input terminal 6b to obtain a second electrical signal, and then output the second electrical signal from second output terminal 6 d.
Specifically, when the detection device 1 is used to detect the temperature and the liquid level in the oil storage tank, the temperature sensor 4 can be used to detect the temperature in the oil storage tank, an electric signal corresponding to the temperature in the oil storage tank is obtained and transmitted to the transmitter 6, and then the transmitter 6 can convert the electric signal to obtain a first electric signal, and then send the first electric signal to the control device 2. The liquid level in the oil storage tank can be detected by the liquid level sensor 5, an electric signal corresponding to the liquid level in the oil storage tank is obtained and transmitted to the transmitter 6, then the transmitter 6 converts the electric signal to obtain a second electric signal, and then the second electric signal is sent to the control device 2. Because the electric signal range (voltage range or current range) that temperature sensor 4 and level sensor 5 output probably exceeds the electric signal range that controlling means 2 can discern, consequently, pass through changer 6 in this application embodiment, convert the electric signal that temperature sensor 4 and level sensor 5 output to the within range that can be discerned by controlling means 2 to make detection device 1 unrestricted, and then guaranteed that this oil storage tank heating system can extensively be applicable.
Optionally, when the control device 2 determines the temperature value in the oil storage tank according to the first electrical signal, the corresponding temperature value may be obtained from the correspondence between the current value and the temperature value according to the current value of the first electrical signal, and the obtained corresponding temperature value is used as the temperature value in the oil storage tank; alternatively, the corresponding temperature value may be obtained from the correspondence between the voltage value and the temperature value according to the voltage value of the first electrical signal, and the corresponding temperature value may be used as the temperature value in the oil storage tank.
Optionally, when the control device 2 determines the liquid level value in the oil storage tank according to the second electrical signal, the corresponding liquid level value may be obtained from the corresponding relationship between the current value and the liquid level value according to the current value of the second electrical signal, and is used as the liquid level value in the oil storage tank; alternatively, according to the voltage value of the second electrical signal, the corresponding level value may be obtained from the corresponding relationship between the voltage value and the level value as the level value in the oil storage tank.
When the control device 2 controls the execution device 3 to heat the liquid in the oil storage tank according to the temperature value and the level value, the control device 2 may control the execution device 3 to heat the liquid in the oil storage tank when the temperature value is less than or equal to the first temperature threshold value and the level value is greater than or equal to the first liquid level threshold value.
It should be noted that the first temperature threshold may be preset according to actual use requirements, for example, the first temperature threshold may be 35 ℃, and this is not specifically limited in this embodiment of the application. When the temperature value in the oil storage tank is less than or equal to the first temperature threshold value, the temperature in the oil storage tank is low, and the liquid in the oil storage tank may be dynamically changed into a condensed state from a flowing state.
In addition, the first liquid level threshold may be preset according to an actual use requirement, for example, the first liquid level threshold may be 1.2m, which is not specifically limited in this application embodiment. When the liquid level value in the oil storage tank is larger than the first liquid level threshold value, the liquid in the oil storage tank is more, and the liquid in the oil storage tank can be pulled quickly.
It should be noted that, in the embodiment of the present application, specifically, when the control device 2 determines that the temperature value in the oil storage tank is less than or equal to the first temperature threshold and the liquid level value in the oil storage tank is greater than or equal to the first liquid level threshold, it indicates that the temperature in the oil storage tank is low and the liquid in the oil storage tank is more, and at this time, the control device 2 may control the execution device 3 to heat the liquid in the oil storage tank, so as to ensure that the liquid in the oil storage tank is in a flowing state and does not affect subsequent transportation.
Further, the control device 2 may also control the execution device 3 to stop heating the liquid in the oil storage tank when the temperature value is greater than the first temperature threshold value and/or when the liquid level value is less than the first liquid level threshold value after the control execution device 3 heats the liquid in the oil storage tank.
It should be noted that, when the temperature value in the oil storage tank is greater than the first temperature threshold, the temperature in the oil storage tank is higher, and at this time, the liquid in the oil storage tank does not solidify, and is in a flowing state, so that the liquid in the oil storage tank may not be heated temporarily, that is, the control device 2 may control the execution device 3 to stop heating the liquid in the oil storage tank, so as to save electric energy.
In addition, when the liquid level value in the oil storage tank is less than the first liquid level threshold value, the liquid in the oil storage tank is less, and the liquid amount in the oil storage tank can meet the pulling requirement after a period of time, so the liquid in the oil storage tank can be temporarily not heated, namely the control device 2 can control the execution device 3 to stop heating the liquid in the oil storage tank, and thus the electric energy can be saved.
Alternatively, referring to fig. 3, the actuator 3 comprises a switch 7 and an electrical heating rod 8; the electric heating rod 8 is positioned in the oil storage tank, the first end 7a of the switch 7 is connected with the power supply 9, the second end 7b of the switch 7 is connected with the electric heating rod 8, and the control end 7c of the switch 7 is connected with the control end 2b of the control device 2.
It should be noted that the switch 7 is used for controlling the starting and stopping of the electric heating rod 8, and the type of the switch 7 can be preset according to the use requirement.
In addition, the electric heating rods 8 are members for heating, and the number of the electric heating rods 8 may be set in advance, for example, the number of the electric heating rods 8 may be two. The type and the heating temperature of the electric heating rod 8 can be preset according to the use requirement, for example, the electric heating rod 8 can be an explosion-proof electric heater of a GDRBZ series model, the rated power of the explosion-proof electric heater is 15KW (kilowatt), and the explosion-proof grade is Exd II C; and the heating temperature of the electric heating rod 8 can be between 0 and 85 ℃.
Specifically, when the switch 7 receives a control command from the control device 2, the switch 7 operates to connect or disconnect the first end 7a and the second end 7b thereof in accordance with the control command. When the first end 7a and the second end 7b of the switch 7 are communicated, the power supply supplies power to the electric heating rod 8, and at the moment, the electric heating rod 8 heats the liquid in the oil storage tank; when the first end 7a and the second end 7b of the switch 7 are disconnected, the power supply cannot supply power to the electric heating rod 8, and at this time, the electric heating rod 8 stops heating the liquid in the oil storage tank.
Further, referring to fig. 4, the switch 7 is a relay 10, and the actuator 3 further includes an ac contactor 11; an alternating current contactor 11 is connected between the relay 10 and the electric heating rod 8.
It should be noted that the relay 10 is an electronic control device, and plays a role of an automatic adjustment, a safety protection, a switching circuit, and the like in a circuit. The type of the relay 10 may also be preset according to the use requirement, for example, the relay may be an electromagnetic relay, the operating voltage of the electromagnetic relay is dc 24V, the closing voltage is less than or equal to 75% of the operating voltage, and the opening voltage is greater than or equal to 12% of the operating voltage. And the electromagnetic relay has 4 pairs of contacts, each of which can withstand a closed-circuit current value of 12A (amperes).
In addition, the ac contactor 11 is a member that uses electromagnetic force in cooperation with spring force to achieve connection and disconnection of contacts therein. The type of the ac contactor 11 may be preset according to a use requirement, for example, the ac contactor 11 may be an air electromagnetic ac contactor, and the embodiment of the present application is not particularly limited thereto.
Specifically, when the relay 10 receives a control command from the control device 2, the relay 10 performs an operation of turning on or off the power supply in accordance with the control command. When the relay 10 connects the power supply, the contact in the alternating current contactor 11 is closed, the power supply supplies power to the electric heating rod 8 at the moment, and the electric heating rod 8 heats the liquid in the oil storage tank; when the relay 10 disconnects the power, the contacts in the ac contactor 10 are disconnected and the power supply cannot supply power to the electrical heating rod 8, and at this time, the electrical heating rod 8 stops heating the liquid in the oil storage tank. In this way, the relay 10 can prevent the load of the electric heating rod 8 from being too large, and the ac contactor 11 can control the on/off of the electric heating rod 8. The starting and stopping of the electric heating rod 8 can be automatically controlled through the relay 10 and the alternating current contactor 11.
Optionally, referring to fig. 5, the system further includes a display device 12, and the communication terminal 2e of the control system 2 is connected to the communication terminal 12a of the display device 12. The control device 2 sends the temperature value and the liquid level value in the oil storage tank to the display device 12, and the display device 12 displays the temperature value and the liquid level value; and/or the control device 2 sends the heating data of the oil storage tank to the display device 12, and the display device 12 displays the heating data.
It should be noted that the display device 12 is used for displaying the temperature value, the level value and the heating data of the oil storage tank, and can store the temperature value, the level value and the heating data. Therefore, a technician can timely know the temperature value and the liquid level value in the oil storage tank and the heating data of the oil storage tank through the display device 12. The installation position of the display device 12 may be preset according to a use requirement, for example, the display device 12 may be installed in a station control room, which is not particularly limited in this embodiment of the present application.
In addition, referring to fig. 6, the display device 12 includes an upper computer 13, the upper computer 13 may have configuration software 14 installed therein, and the component software 14 may display a configuration interface 15 therein. Wherein, the upper computer 13 is configured to receive the temperature value, the level value and the heating data transmitted by the control device 2; the configuration software 14 can display the temperature value, the level value and the heating data in its configuration interface 15.
For example, the software dongle of the configuration software 14 may be a demonstration version, and the configuration software 14 may be a 32-bit program and client server model, and the configuration software 14 may support distributed alarm and history databases, as well as DDE (Dynamic Data Exchange).
Further, the heating data may include whether the electric heating rod 8 is heating, the temperature of the electric heating rod 8, and the like.
Wherein, the electric heating rod 8 is installed with a temperature detection device, the temperature detection device can output an electric signal to the control device 2, and the control device 2 can determine the temperature of the electric heating rod 8 according to the electric signal and send the temperature of the electric heating rod 8 to the display device 12.
Specifically, the control device 2 may detect the temperature value, the level value, and the heating data of the oil storage tank in real time, and transmit the temperature value, the level value, the heating data, and the detection time corresponding thereto to the display device 12. When the display device 12 displays the temperature value, the level value and the heating data, the temperature value, the level value and the heating data can be displayed in a graph form according to the detection time, so that the whole working process can be displayed. In this way, the technician can retrieve temperature values, level values or heating data at different times in the display device 12.
Optionally, the display device 12 may further display the first warning information when the temperature value is greater than or equal to the second temperature threshold, and display the second warning information when the liquid level value is greater than or equal to the second liquid level threshold.
It should be noted that the second temperature threshold may be preset according to actual use requirements, for example, the second temperature threshold may be 85 ℃, and this is not specifically limited in this embodiment of the application. Wherein, when this temperature value is greater than the second temperature threshold value, explain the high temperature in the oil storage tank, at this moment, the liquid in the oil storage tank can probably take place the spontaneous combustion phenomenon because the high temperature, therefore need show first warning information and remind technical staff to be convenient for technical staff in time reduces the temperature in the oil storage tank, and then avoided the incident because of the high temperature that arouses in the oil storage tank, guaranteed the safety of production site.
In addition, the second liquid level threshold may be preset according to an actual use requirement, for example, the second liquid level threshold may be 1.7m, which is not specifically limited in this embodiment of the application. Wherein, when this liquid level value is greater than or equal to the second liquid level threshold value, it is more to explain the liquid in the oil storage tank, and at this moment, the oil storage tank can be because too much and produce the tank overflow phenomenon, therefore need show the second warning information and come to remind technical staff to be convenient for technical staff in time reduce the liquid in the oil storage tank, and then avoided the incident because of the liquid level in the oil storage tank is too high aroused, guaranteed production site's safety.
It is noted that the display device 12 may also display a third warning message when the level value is less than or equal to a third level threshold.
It should be noted that the third liquid level threshold may be preset according to an actual use requirement, for example, the third liquid level threshold may be 1m, which is not specifically limited in this embodiment of the application. Wherein, when this liquid level value is less than or equal to the third liquid level threshold value, it is few to explain the liquid in the oil storage tank, and at this moment, the liquid in the oil storage tank probably does not contact the bottom of electrical heating stick 8, consequently need show third warning information and remind technical staff to remind technical staff not to heat the liquid in the oil storage tank, and then avoided electrical heating stick 8 to be in the state of dry combustion method, prolonged electrical heating stick 8's life.
Optionally, the display device 12 sets the heating parameters for controlling the execution device 3 according to the first setting instruction when receiving the first setting instruction; and/or the display device 12 sets an alarm parameter for indicating an abnormal situation according to the second setting instruction when receiving the second setting instruction.
It should be noted that the first setting instruction is used to adjust the heating parameter of the execution device 3, and the first setting instruction may be triggered by a technician, and the technician may trigger through operations such as a click operation, a slide operation, a voice operation, and a gesture operation. The heating parameters of the actuating device 3 may include a first temperature threshold, a first liquid level threshold, a connection time of the switch 7, and the like.
In addition, the second setting instruction is used for adjusting the alarm parameters of the abnormal condition, the second setting instruction can be triggered by a technician, and the technician can trigger through operations such as click operation, sliding operation, voice operation and gesture operation. Wherein the alarm parameter may comprise a second temperature threshold, a second liquid level threshold, a third liquid level threshold, and the like.
It should be noted that in the embodiment of the present application, a technician may adjust the heating parameter and the alarm parameter of the actuating device 3 through the display device 12, so that the system may be suitable for oil storage tanks with different specifications, and the system may meet different actual requirements. Moreover, a technician can also call the heating parameters and the alarm parameters of the actuating device 3 through the display device 12, so that the technician can know the working condition of the system in time.
Optionally, referring to fig. 7, the system may further include a power supply 16 (i.e., the power supply described above).
The power supply device 16 is used for supplying the operating voltages to the detection device 1, the actuator device 3 and the display device 12. Illustratively, the operating voltage may be a 24V dc voltage. Wherein the control device 2 may have an independent power supply to power itself.
In the embodiment of the present application, since the detection device 1 can automatically detect the temperature and the liquid level in the oil storage tank, the control device 2 can automatically control the execution device 3 to heat the liquid in the oil storage tank according to the detection result of the detection device 1. Therefore, the oil storage tank heating system can realize automatic control, thereby reducing the labor intensity and improving the working efficiency. And because the automatic control is carried out according to the temperature and the liquid level in the oil storage tank, the parameter setting is reasonable, so the heating time can be accurately controlled, the problems that the electricity cost is high due to overlong heating time of the liquid in the oil storage tank, or the temperature is too low due to shorter heating time of the liquid in the oil storage tank, the oil well is shut down and the production is stopped can be avoided, and the like, and the actual requirements of a production field are further met.
In order to make the technical solutions and advantages of the present application more clear, the following detailed description will be given by means of alternative embodiments.
In the production process of the oil well, liquid in the oil well can be continuously produced by the stratum through the oil pumping unit, and then the produced liquid can enter the oil storage tank through the oil pipeline, so that the liquid level and the temperature of the liquid in the oil storage tank are continuously changed.
In the embodiment of the present application, the temperature sensor 4 is used to detect the temperature in the oil storage tank, obtain the first electrical signal corresponding to the temperature in the oil storage tank, and then send the first electrical signal to the control device 2. And detecting the liquid level in the oil storage tank by using the liquid level sensor 5 to obtain a second electric signal corresponding to the liquid level in the oil storage tank, and then sending the second electric signal to the control device 2. The control device 2 can determine the temperature value and the liquid level value in the oil storage tank in real time according to the first electric signal and the second electric signal.
When the temperature value in this oil storage tank is less than or equal to first temperature threshold, and the liquid level value in this oil storage tank is greater than or equal to first liquid level threshold, controlling means 2 can control switch 7 intercommunication to start electric heating rod 8 and heat the liquid in the oil storage tank. Meanwhile, the control device 2 transmits the temperature value, the level value and the heating data of the oil storage tank to the upper computer 13 in the display device 12, and the configuration software 14 in the upper computer 13 can display the temperature value, the level value and the heating data in the configuration interface 15.
Then, when the temperature value in the oil storage tank is greater than the first temperature threshold value and/or the liquid level value in the oil storage tank is less than the first liquid level threshold value, the control device 2 controls the switch 7 to be switched off to turn off the electric heating rod 8, so that the liquid in the oil storage tank can be stopped being heated. Meanwhile, the control device 2 transmits the temperature value, the level value and the heating data of the oil storage tank to the upper computer 13 in the display device 12, and the configuration software 14 in the upper computer 13 can display the temperature value, the level value and the heating data in the configuration interface 15.
Meanwhile, if the upper computer 13 in the display device 12 determines that the level value in the oil storage tank is greater than the second level threshold, the configuration software 14 in the upper computer 13 may display second warning information in the configuration interface 15 thereof to prompt a technician to pull oil in time to reduce the level of the liquid in the oil storage tank, thereby preventing an overflow accident.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A storage tank heating system, the system comprising: a detection device (1), a control device (2) and an execution device (3);
the output end (1a) of the detection device (1) is connected with the input end (2a) of the control device (2), and the control end (2b) of the control device (2) is connected with the control end (3a) of the execution device (3);
the detection device (1) generates a first electric signal corresponding to the temperature in the oil storage tank and a second electric signal corresponding to the liquid level in the oil storage tank, and transmits the first electric signal and the second electric signal to the control device (2);
the control device (2) determines a temperature value in the oil storage tank according to the first electric signal and a liquid level value in the oil storage tank according to the second electric signal, and controls the execution device (3) to heat liquid in the oil storage tank according to the temperature value and the liquid level value.
2. The system according to claim 1, characterized in that said detection means (1) comprise a temperature sensor (4), a level sensor (5) and a transmitter (6);
the temperature sensor (4) and the liquid level sensor (5) are both positioned inside the oil storage tank;
the output end (4a) of the temperature sensor (4) is connected with the first input end (6a) of the transmitter (6), and the output end (5a) of the liquid level sensor (5) is connected with the second input end (6b) of the transmitter (6);
the first output end (6c) of the transmitter (6) is connected with the first input end (2c) of the control device (2), and the second output end (6d) of the transmitter (6) is connected with the second input end (2d) of the control device (2).
3. A system according to claim 2, wherein the level sensor (5) is a magnetic control sensor.
4. The system according to claim 1, characterized in that the control device (2) controls the execution device (3) to heat the liquid in the oil storage tank when the temperature value is less than or equal to a first temperature threshold value and the liquid level value is greater than or equal to a first liquid level threshold value.
5. The system according to claim 4, characterized in that the control device (2) controls the actuator device (3) to stop heating the liquid in the tank after the temperature value is greater than the first temperature threshold value and/or when the level value is less than the first level threshold value after the actuator device (3) has heated the liquid in the tank.
6. The system according to claim 1, characterized in that the actuating means (3) comprise a switch (7) and an electrical heating rod (8);
the oil storage tank is characterized in that the electric heating rod (8) is located inside the oil storage tank, a first end (7a) of the switch (7) is connected with a power supply (9), a second end (7b) of the switch (7) is connected with the electric heating rod (8), and a control end (7c) of the switch (7) is connected with a control end (2b) of the control device (2).
7. The system according to claim 6, characterized in that the switch (7) is a relay (10), the actuator (3) further comprising an ac contactor (11);
the alternating current contactor (11) is connected between the relay (10) and the electric heating rod (8).
8. The system according to claim 1, characterized in that it further comprises a display device (12), the communication terminal (2e) of the control system (2) being connected to the communication terminal (12a) of the display device (12);
the control device (2) sends the temperature value and the liquid level value to the display device (12), and the display device (12) displays the temperature value and the liquid level value; and/or
The control device (2) sends heating data of the oil storage tank to the display device (12), and the display device (12) displays the heating data.
9. The system according to claim 8, characterized in that said display means (12) display a first warning message when said temperature value is greater than or equal to a second temperature threshold value and a second warning message when said level value is greater than or equal to a second level threshold value.
10. The system according to claim 9, characterized in that the display device (12), upon receiving a first setting instruction, sets heating parameters for controlling the execution device (3) according to the first setting instruction; and/or the display device (12) sets alarm parameters for indicating abnormal conditions according to a second setting instruction when receiving the second setting instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379598.9A CN113044413A (en) | 2019-12-27 | 2019-12-27 | Oil storage tank heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911379598.9A CN113044413A (en) | 2019-12-27 | 2019-12-27 | Oil storage tank heating system |
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| CN113044413A true CN113044413A (en) | 2021-06-29 |
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| CN201911379598.9A Pending CN113044413A (en) | 2019-12-27 | 2019-12-27 | Oil storage tank heating system |
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Application publication date: 20210629 |