CN113551430B - Solar heating method and equipment for crude oil - Google Patents
Solar heating method and equipment for crude oil Download PDFInfo
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- CN113551430B CN113551430B CN202110875456.2A CN202110875456A CN113551430B CN 113551430 B CN113551430 B CN 113551430B CN 202110875456 A CN202110875456 A CN 202110875456A CN 113551430 B CN113551430 B CN 113551430B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/50—Solar heat collectors using working fluids the working fluids being conveyed between plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S50/00—Arrangements for controlling solar heat collectors
- F24S50/40—Arrangements for controlling solar heat collectors responsive to temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
A solar heating method and apparatus for crude oil is provided by obtaining a first temperature from a first temperature sensor and a time of arrival of the crude oil. The first temperature sensor is arranged in the crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with the solar heating device. And under the condition that the first temperature is lower than a first preset temperature value and the arrival time of the crude oil is higher than a preset time value, determining whether the solar heating device meets the heating condition. If yes, generating a solar heating instruction, sending the solar heating instruction to the control terminal, enabling the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area. By the method, the crude oil is heated by solar energy, the crude oil transportation efficiency is ensured, and the energy consumption is reduced.
Description
Technical Field
The application relates to the technical field of solar heating, in particular to a solar heating method and equipment for crude oil.
Background
In the process of exploitation in the oil field industry, a large amount of energy needs to be consumed. With the development of the petroleum industry and the increase of environmental protection consciousness and sustainable development consciousness, people urgently need to replace old energy with new energy to assist the oil field industry in exploitation.
Most of the crude oil in China is wax-containing or high-viscosity oil, and if pipeline transportation is carried out on the crude oil, the crude oil needs to be heated so as to improve the fluidity of the crude oil. The crude oil is heated by coal, oil and electricity, which causes energy consumption and environmental pollution. Solar energy is used as a natural and pollution-free energy source, and if the solar energy can be well and effectively utilized, the solar energy can help human beings to save energy consumption and protect the natural environment. If solar energy is combined with crude oil transportation, energy consumption of crude oil transportation can be saved, and the environment can be protected.
Disclosure of Invention
The embodiment of the application provides a solar heating method and equipment for crude oil, which are used for solving the technical problems of overhigh energy consumption and environmental pollution caused by the transportation and heating of the current crude oil.
In one aspect, the present application provides a method for solar heating of crude oil, the method comprising:
a first temperature from a first temperature sensor and a crude oil arrival time are obtained. The first temperature sensor is arranged in the crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with the solar heating device. And under the condition that the first temperature is lower than a first preset temperature value and the arrival time of the crude oil is higher than a preset time value, determining whether the solar heating device meets the heating condition. If yes, generating a solar heating instruction, sending the solar heating instruction to the control terminal, enabling the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area.
In one implementation of the present application, a second temperature from a second temperature sensor and a third temperature from a third temperature sensor are obtained. Wherein, the second temperature sensor sets up in heat storage water tank, and heat storage water tank is connected with heating pipeline's front end and end. The third temperature sensor is arranged on the solar heat absorption plate. And under the condition that the second temperature is lower than a second preset temperature value and the third temperature is higher than a third preset temperature value, determining that the solar heating device meets the solar heating condition. Send solar heating instruction to control terminal to make control terminal control solar heating device operation, specifically include: and generating and sending a solar heating instruction to the control terminal so that the control terminal controls the heat conduction oil valve and the heat exchange valve of the heat storage water tank to be opened, so that the heat conduction oil is heated by the solar heat absorption plate, and the heated heat conduction oil preheats the liquid in the heat storage water tank through the heat exchange module.
In one implementation of the present application, an initial monitoring interval is determined during preheating of liquid in a hot-water storage tank. And determining the difference value between the second temperature at the current monitoring moment and a second preset temperature value according to the initial monitoring time interval. And determining a monitoring time interval of the next monitoring moment based on the difference value between the second temperature and the second preset temperature value and the corresponding monitoring interval time table so as to monitor the second temperature until the second temperature is greater than or equal to the second preset temperature value.
In an implementation manner of the present application, a heating valve opening instruction is generated and sent to the control terminal, so that the control terminal controls the heating valve of the heat storage water tank to open through the heating valve opening instruction, and liquid in the heat storage water tank enters the heating pipeline. A fourth temperature is obtained from a fourth temperature sensor. Wherein, the fourth temperature sensor is arranged at the tail end of the heating pipeline. And under the condition that the temperature difference between the second temperature and the fourth temperature is smaller than the preset temperature difference, generating and sending a heating valve closing instruction to the control terminal.
In one implementation of the present application, a first rate of temperature change of the first temperature is determined based on a preset heating time interval. And under the condition that the first temperature change rate is smaller than a first preset threshold value and the second temperature is larger than or equal to a second preset temperature value, generating and sending a heating valve opening instruction to the control terminal so as to enable liquid in the hot water storage tank to enter the heating pipeline and perform liquid exchange on the liquid in the heating pipeline until the temperature difference between the second temperature and the fourth temperature is smaller than a preset temperature difference.
In an implementation manner of the present application, it is determined whether a difference between the second temperature and the second preset temperature value is within a preset interval or not when the first temperature change rate is smaller than the first preset threshold and the second temperature is smaller than the second preset temperature value. And under the condition that the difference value between the second temperature and the second preset temperature value is not in the preset interval, generating an electric power auxiliary heating instruction, sending the electric power auxiliary heating instruction to the control terminal to electrically heat the heat storage water tank until the second temperature is greater than or equal to the second preset temperature value, and performing liquid exchange on the liquid in the heating pipeline.
In one implementation of the present application, a level value from a level sensor is obtained. Wherein, level sensor sets up inside heat storage water tank. And under the condition that the liquid level value is smaller than the preset lowest liquid level value, generating and sending a water adding instruction to the control terminal so that the corresponding water adding device adds water to the heat storage water tank until the liquid level value is not smaller than the preset water adding liquid level value. And in the process of adding water into the heat storage water tank, generating and sending a stirring instruction to the control terminal so as to enable the corresponding stirring device to stir the heat storage water tank.
In an implementation manner of the present application, it is determined that the solar heating device satisfies the electric power preheating condition when the first temperature is less than the first preset temperature value, the second temperature is less than the second preset temperature value, and the third temperature is less than the third preset temperature value. Under the condition that the solar heating device meets the electric power preheating condition, an electric power preheating instruction is generated and sent to the control terminal, so that the control terminal controls the electric heating module to preheat the liquid in the hot water storage tank.
In one implementation of the present application, the temperature of the liquid in the hot water storage tank at the first inlet of the heat exchange module is determined as the fifth temperature. Wherein, heat exchange module's first entry is connected with the heat storage water tank. And determining the temperature of the liquid in the hot water storage tank at the first outlet of the heat exchange module as a sixth temperature. Wherein, heat exchange module's first export is connected with heat storage water tank. And under the condition that the difference value between the fifth temperature and the sixth temperature is greater than a second preset threshold value and the second temperature is less than a second preset temperature value, generating a liquid circulation instruction and sending the liquid circulation instruction to the control terminal so as to enable the control terminal to control the circulation pump to operate, circulating the liquid in the heat exchange module and the liquid in the heat storage water tank, and preheating the liquid in the heat storage water tank by the heated heat conduction oil until the second temperature is not less than the second preset temperature value.
In another aspect, the present application provides a solar heating apparatus for crude oil, the apparatus comprising:
at least one processor; and a memory communicatively coupled to the at least one processor. Wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to:
a first temperature from a first temperature sensor and a crude oil arrival time are obtained. The first temperature sensor is arranged in the crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with the solar heating device. And under the condition that the first temperature is lower than a first preset temperature value and the arrival time of the crude oil is higher than a preset time value, determining whether the solar heating device meets the heating condition. If yes, generating a solar heating instruction, sending the solar heating instruction to the control terminal, enabling the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area.
According to the scheme, the heating area of the crude oil, through which the crude oil is going to pass, can be preheated, the flowability of the crude oil is ensured, and the crude oil transportation efficiency is maintained and/or improved. After the solar energy is collected by the method, the utilization rate of the solar energy is ensured, the energy consumption is reduced to a great extent, and the environmental pollution is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic flow diagram of a solar heating process for crude oil in an embodiment of the present application;
FIG. 2 is a schematic flow diagram of a solar heating process for crude oil according to an embodiment of the present disclosure;
FIG. 3 is a schematic flow diagram of a solar heating process for crude oil according to an embodiment of the present disclosure;
FIG. 4 is a schematic illustration of a solar heating apparatus for a solar heating process for crude oil in an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a solar heating apparatus for crude oil according to an embodiment of the present application.
List of parts and reference numerals:
1. a solar absorber plate; 2. a heat-conducting oil tank; 3. a heat transfer oil valve; 4. a heat exchange valve; 5. a heat exchange module; 6. a heat storage water tank; 7. heating the valve; 8. heating the pipeline; 9. a crude oil heating zone; 10. a crude oil pipeline 10; 11. an electric heating module; 12. an electric motor.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
With the development of science and technology, the utilization of solar energy has become an effective measure for reducing energy consumption and environmental pollution. In the oil exploitation industry, a large amount of energy needs to be consumed to heat the crude oil, so that the flowability of the crude oil is improved, and the transportation efficiency of the crude oil is ensured. The solar energy is utilized to heat the crude oil, so that the energy consumption of the oil exploitation industry can be reduced, the benefit of the oil exploitation industry is improved, and the pollution degree to the environment is reduced.
Based on this, the embodiment of the application provides a solar heating method and equipment for crude oil, which are used for heating the crude oil, reducing the excessive consumption of energy in the process of energy exploitation, and avoiding the pollution of the energy consumption to the environment in the process of crude oil heating.
Various embodiments of the present application are described in detail below with reference to the accompanying drawings.
The embodiment of the application provides a solar heating method for crude oil, which comprises the following steps S101-S103:
s101, the server obtains a first temperature from a first temperature sensor and crude oil arrival time.
The first temperature sensor is arranged in the crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with the solar heating device.
In the embodiment of the application, the server can acquire the first temperature acquired by the first temperature sensor arranged in the crude oil heating area in real time, and the server can also acquire the arrival time of the crude oil. The crude oil arrival time may be obtained by the server according to the crude oil transportation time sent by the remote terminal device, the length of the crude oil transportation pipeline and the crude oil transportation speed which are input in advance. The terminal device may be a mobile phone, a computer, or other devices, which is not specifically limited in this application.
For example, the remote terminal sends t1 as the crude oil transit time, i.e., the time after the crude oil production is ready for import into the first node of crude oil. The server can prestore a distance s1 from the current crude oil heating area to a first crude oil node, namely the length of a crude oil conveying pipeline, wherein the current crude oil heating area is used as a next node of the first crude oil node; the server may prestore the flow velocity v1 of the crude oil in the flowable condition, i.e., the velocity of crude oil transportation. The server calculates a quotient value of s1 and v1, wherein the quotient value is the time t0 from the source to the heating area of the crude oil. The application takes t1+ t0 as the crude oil arrival time.
In the actual use process, the arrival time of the crude oil is the time when the crude oil arrives at the crude oil heating area when crude oil transportation is carried out for the first time. It should be noted that, in the normal transportation process of crude oil, the server may not obtain the arrival time of crude oil any more, and may continue to heat the crude oil heating area, and maintain the temperature value at which the first temperature is sufficient to heat the crude oil until obtaining the signal that the transportation of crude oil is finished. In this application, the heating pipeline sets up in the crude oil heating zone, through the radiating effect of heating pipeline, heats the crude oil heating zone.
It should be noted that the server is exemplarily presented as an execution subject of the solar heating method for crude oil, and the execution subject is not limited to the server, and the present application is not particularly limited thereto.
S102, the server determines whether the solar heating device meets the heating condition or not under the condition that the first temperature is smaller than a first preset temperature value and the arrival time of the crude oil is larger than a preset time value.
In this embodiment, the server may determine whether the first temperature is less than a first preset temperature value and whether the crude oil arrival time is greater than a preset time value, where the first preset temperature value may be obtained according to a historical heating record, that is, when the crude oil heating area is at the first preset temperature value, it may be ensured that the crude oil is heated to the lowest temperature at which the crude oil is flowable or any temperature at which the crude oil is flowable. The preset time value is the maximum time for heating the first temperature to the first preset temperature value according to the solar heating device.
And under the condition that the first temperature is lower than a first preset temperature value and the crude oil arrival time is greater than a preset time value, the server determines whether the solar heating device meets the heating condition currently or not, and then heats the crude oil heating area through solar energy.
In the actual transportation process of crude oil, solar heating device has heated the first temperature in the crude oil zone of heating to the temperature that is greater than or equal to first preset temperature value, therefore the server can need not to confirm crude oil arrival time, can be directly according to whether solar heating device satisfies the heating condition, maintains the solar heating device's of this application steady operation.
In the embodiment of the present application, the server determines whether the solar heating apparatus satisfies the heating condition, and the determination may be made by the following embodiments:
the server obtains a second temperature from the second temperature sensor and a third temperature from the third temperature sensor. The second temperature sensor is arranged on the heat storage water tank, and the heat storage water tank is connected with the front end and the tail end of the heating pipeline; the third temperature sensor is arranged on the solar heat absorption plate.
And the server acquires signals acquired by the second temperature sensor in the hot water storage tank, and analyzes and processes the signals to obtain a second temperature, namely the temperature of the liquid in the current hot water storage tank. And the server acquires a third temperature which can be acquired by a third temperature sensor arranged on the solar heat absorption plate, namely the heat absorption temperature of the solar heat absorption plate.
And the server determines that the solar heating device meets the solar heating condition under the condition that the second temperature is lower than the second preset temperature value and the third temperature is higher than the third preset temperature value.
The server determines that the second temperature is lower than a second preset temperature value, namely the temperature in the heat storage water tank does not reach the temperature for heating the crude oil heating area, and the temperature of the solar heat absorption plate is higher than a third preset temperature value, namely the current solar energy resource is sufficient, and the solar heating mode can be adopted.
In this application embodiment, when solar energy is insufficient, can't make solar heating device fully play a role, therefore this application can be on solar heating device basis, supply the heating methods, specifically as follows:
the server determines that the solar heating device meets the electric power preheating condition under the conditions that the first temperature is smaller than a first preset temperature value, the second temperature is smaller than a second preset temperature value, and the third temperature is smaller than a third preset temperature value.
Under the condition that the solar heating device meets the electric preheating condition, an electric preheating command is generated and sent to the control terminal, so that the control terminal controls the electric heating module to preheat liquid in the hot water storage tank.
Through above-mentioned scheme, can be when solar energy is insufficient, like overcast and rainy day, early morning, evening, utilize electric power to preheat the liquid in the heat storage water tank, guarantee crude oil transportation efficiency.
S103, if the server is in the state of yes, generating a solar heating instruction, sending the solar heating instruction to the control terminal, so that the control terminal controls the solar heating device to operate, and the crude oil heating area is preheated through the heating pipeline before the crude oil reaches the crude oil heating area.
The server sends solar heating instruction to control terminal to make control terminal control solar heating device operation, specifically include:
the server generates and sends a solar heating instruction to the control terminal, so that the control terminal controls the heat conduction oil valve and the heat exchange valve of the heat storage water tank to be opened, the heat conduction oil is heated by the solar heat absorption plate, and the heated heat conduction oil preheats the liquid in the heat storage water tank through the heat exchange module.
Preheating can provide temperature for the upcoming crude oil, maintain the fluidity of the crude oil, and avoid the accumulation of the crude oil. In the embodiment of the application, after the server determines that the solar heating device meets the solar preheating condition, the server can generate a solar heating instruction and send the generated solar heating instruction to the control terminal, and after the control terminal receives the solar heating instruction, the conduction oil valve can be controlled to be opened, so that the conduction oil enters a corresponding heating area of the solar heating plate, and after the heating is completed, the conduction oil enters the heat exchange module.
Meanwhile, a heat exchange valve of the heat storage water tank is opened, so that liquid in the heat storage water tank enters the heat exchange module to exchange heat with the heated heat conduction oil. Heat exchange module is the heat exchanger in this application, also is the heat exchanger, and this application does not do the restriction to its specific model. The application takes the liquid in the heat storage water tank as water as an example, and performs a solar heating method for crude oil.
It should be noted that the control terminal may be a terminal for controlling each module of the solar heating apparatus, and may be a terminal device such as a mobile phone and a computer, which is not limited in the present application.
In order to guarantee heat exchange efficiency, the efficiency of liquid business turn over heat exchange module in the heat storage water tank needs remain stable, consequently, this application provides following embodiment, specifically as follows:
firstly, the server determines the temperature of liquid in a hot water storage tank at a first inlet of the heat exchange module as a fifth temperature.
Wherein, heat exchange module's first entry is connected with the heat storage water tank.
And the server determines the temperature of the liquid in the hot water storage tank at the first outlet of the heat exchange module as a sixth temperature.
Wherein, heat exchange module's first export is connected with heat storage water tank.
The heat storage water tank is connected with the heat exchange module through a first inlet and a first outlet, the first inlet is used for liquid which does not exchange heat in the heat storage water tank to enter, and the first outlet is used for liquid which exchanges heat to flow out. And the first inlet and the first outlet are respectively provided with a temperature sensor for collecting the temperature of the liquid discharged from the first inlet and the first outlet.
Then, the server generates a liquid circulation instruction when the difference value between the fifth temperature and the sixth temperature is greater than a third preset threshold value and the second temperature is less than a second preset temperature value, and sends the liquid circulation instruction to the control terminal so that the control terminal can control the circulation pump to operate, and liquid in the heat exchange module and liquid in the heat storage water tank are circulated so that heated heat conduction oil can preheat liquid in the heat storage water tank until the second temperature is not less than the second preset temperature value.
Through the scheme, the liquid in the heat storage water tank timely enters the heat exchange module to exchange heat, and the speed of increasing the temperature of the liquid in the heat exchange water tank is increased.
In the embodiment of the application, in the process of preheating the water in the heat storage water tank, the server monitors the water in real time and acquires data in real time, so that the hysteresis of information transmission is easy to occur, for example, after the water reaches the temperature for heating the crude oil heating area, the information is not obtained at the first moment, and if the data transmission resource is excessively wasted by monitoring the heat storage water tank in real time. Therefore, the present application provides the following embodiments, which monitor the liquid temperature in the hot water storage tank, specifically as follows:
first, the server determines an initial monitoring interval during preheating of the liquid in the hot-storage water tank.
Before or during the preheating of the water in the hot water storage tank, the server may determine an initial value A0 of the second temperature, and query, according to the initial value A0, a corresponding monitoring interval in a preset monitoring interval time table as an initial monitoring interval T0.
The monitoring interval time table can be obtained according to the historical heating record of the heat storage water tank, for example, in the historical heating record, the time process from the initial temperature a to a second preset temperature value when a plurality of initial temperatures a are below the initial temperature a of water in the heat storage water tank is recorded, wherein the time process from the initial temperature a to the second preset temperature value comprises a plurality of temperature values, and the server can determine the time c for each time the temperature rises by one scale of temperature b, so as to obtain the time table of the temperature rise record from the initial temperature a to the second preset temperature value. The server can train and calculate a plurality of temperature-rise recorded time tables through the neural network model to obtain a monitoring interval time table.
Further, the server determines a difference value between a second temperature at the current monitoring time and a second preset temperature value according to the initial monitoring time interval.
And further, the server determines the monitoring time interval of the next monitoring moment based on the difference value between the second temperature and the second preset temperature value and the corresponding monitoring interval time table so as to monitor the second temperature until the second temperature is greater than or equal to the second preset temperature value.
The server can determine the monitoring time interval between the next monitoring time and the current monitoring time according to the monitoring time interval schedule and the difference value between the second temperature and the second preset temperature value. Specifically, if the current temperature difference is X1, the second preset temperature value is X0, and the corresponding monitoring time interval is searched from the monitoring interval time table according to X0-X1. And according to the monitoring time interval, the server acquires the monitored second temperature until the second temperature X1 is greater than or equal to a second preset temperature value X0.
According to the embodiment, after the temperature of the liquid in the hot water storage tank is heated to be not less than the second preset temperature value, the crude oil heating area can be preheated through the solar heating device. As shown in fig. 2, the method specifically includes the following steps:
s201, the server generates and sends a heating valve opening instruction to the control terminal, so that the control terminal controls the heating valve of the heat storage water tank to be opened through the heating valve opening instruction, and liquid in the heat storage water tank enters a heating pipeline.
In this application embodiment, after the server sends the heating valve opening instruction to control terminal, control terminal control heating valve opens, makes the liquid entering heating pipeline in the heat storage water tank. The liquid dissipates heat in the heating pipeline to raise the temperature of the crude oil heating area.
S202, the server obtains a fourth temperature from the fourth temperature sensor.
Wherein, the fourth temperature sensor is arranged at the tail end of the heating pipeline.
In the embodiment of the present application, according to the flowing direction of the liquid in the heating pipeline, the inlet of the liquid in the heating pipeline is determined as the front end of the heating pipeline, and the position where the liquid exits from the heating pipeline is determined as the tail end of the heating pipeline. The fourth temperature sensor is arranged at the tail end of the heating pipeline, and is used for collecting the temperature of liquid passing through a crude oil heating area in the heating pipeline and completing heat dissipation as a fourth temperature.
S203, the server generates and sends a heating valve closing instruction to the control terminal under the condition that the temperature difference between the second temperature and the fourth temperature is smaller than the preset temperature difference.
Specifically, the absolute value of the second temperature minus the fourth temperature is used as the temperature difference, and the preset temperature difference may be determined according to the length of the heating pipeline, for example, when the length of the heating pipeline is greater than a certain length S, the preset temperature difference may be set to be smaller correspondingly, the preset temperature difference may be in inverse proportion to the length of the heating pipeline, or may be set according to specific environmental factors, for example, the temperature difference between day and night is large, and the difference between the outside temperature and the second temperature is larger in winter, and the larger the difference is, the smaller the preset temperature difference may be set.
The server may generate and transmit a heating valve closing instruction to the control terminal in a case where a temperature difference between the second temperature and the fourth temperature is less than a preset temperature difference. Meanwhile, under the condition that the temperature difference between the second temperature and the fourth temperature is smaller than the preset temperature difference, the server can send a heating valve opening instruction to the control terminal, the heating valve is opened, liquid in the hot water storage tank enters the heating pipeline, and the working efficiency of the heating pipeline is maintained. The heating valve is closed, so that the power loss of the system can be reduced, the heated liquid can be fully radiated in the heating pipeline, and the temperature of the crude oil heating area is improved to achieve a better temperature improvement effect.
Only rely on above-mentioned fourth temperature sensor probably can not accomplish fine assurance to the heat dissipation of heating tube, if long-time use of heating tube, when inside has the incrustation scale untreated, cause the radiating efficiency of heating tube to reduce. In another embodiment of the present application, the server may exchange liquid in the heating conduit in response to temperature changes in the crude oil heating zone.
The server determines a first temperature change rate of the first temperature based on a preset heating time interval.
During the time of preheating the crude oil heating area, the server may process the liquid according to a preset heating time interval, where the heating time interval may be, for example, the time consumed when the ambient temperature of the liquid is raised by 1 degree celsius according to a second preset temperature value of the liquid with a volume V (V may be an internal volume of the heating pipeline) in the case of heat dissipation.
And under the condition that the first temperature change rate is smaller than a first preset threshold value and the second temperature is larger than or equal to a second preset temperature value, the server generates and sends a heating valve opening instruction to the control terminal so as to enable liquid in the hot water storage tank to enter the heating pipeline and exchange the liquid in the heating pipeline until the temperature difference between the second temperature and the fourth temperature is smaller than a preset temperature difference.
In this embodiment, when the first temperature change rate is smaller than a first preset threshold, that is, the temperature rising speed of the first temperature is smaller than the first preset threshold in the heating time interval, the server determines that liquid exchange needs to be performed on the heating pipeline. At this time, it may be determined that the first temperature does not reach the first preset temperature value.
Before liquid exchange is performed, if the second temperature is not less than the second preset temperature value, the liquid exchange can be directly performed, and if the second temperature is less than the second preset temperature value, the following embodiments are provided in the present application.
Specifically, the server determines whether a difference between the second temperature and a second preset temperature value is within a preset interval or not under the condition that the first temperature change rate is smaller than a first preset threshold and the second temperature is smaller than the second preset temperature value.
The server determines whether the difference value between the second temperature and the second preset temperature value is within a preset interval, and determines that the difference value between the second temperature and the second preset temperature value is within the preset interval within an error allowable range.
And the server generates an electric power auxiliary heating instruction under the condition that the difference value between the second temperature and the second preset temperature value is not in the preset interval, and sends the electric power auxiliary heating instruction to the control terminal so as to electrically heat the heat storage water tank until the second temperature is greater than or equal to the second preset temperature value, and liquid exchange is carried out on the liquid in the heating pipeline.
When the difference value between the second temperature and the second preset temperature value is not within the preset interval, the temperature in the heat storage water tank does not meet the temperature for liquid exchange, the control terminal can control the electric power auxiliary heating module in the heat storage water tank to operate according to the electric power auxiliary heating instruction sent by the server, and the electric power auxiliary heating module is an electric heating wire, an electric heating tube and the like.
Through the scheme, the liquid temperature of the exchange can be ensured to meet the temperature for heating the crude oil heating area before the heating pipeline carries out liquid exchange.
In order to ensure sufficient water in the water tank and avoid the situation of water evaporation caused by heating, the water replenishing operation can be performed through the following embodiment, as shown in fig. 3, the method specifically comprises the following steps:
s301, the server acquires a liquid level value from the liquid level sensor.
Wherein, level sensor sets up inside heat storage water tank.
S302, under the condition that the liquid level value is smaller than the preset lowest liquid level value, the server generates and sends a water adding instruction to the control terminal, so that the corresponding water adding device can add water to the heat storage water tank until the liquid level value is not smaller than the preset water adding liquid level value.
And S303, generating and sending a stirring instruction to the control terminal by the server in the water adding operation process of the heat storage water tank so as to enable the corresponding stirring device to stir the heat storage water tank.
Through above-mentioned scheme, can guarantee that the liquid in the heat storage water tank is sufficient to the stirring operation can guarantee that the liquid temperature of heat storage water tank carries out the uniform heating up. In addition, in the practical use process, the stirring operation of the liquid in the hot water storage tank can be performed in the heating process, and the stirring operation is not limited to the water adding operation process.
The application relates to a solar heating method for crude oil, wherein crude oil exploitation is usually located in open fields and other areas, the areas generally have abundant solar energy, but the temperature difference between day and night is large, and the temperature reduction speed is high. Therefore, in one embodiment of the present application, the server may generate the start time of the preheating and the start time of the electric heating based on the diurnal temperature difference of the crude oil production site.
For example, in inland areas where the diurnal temperature difference is small, the solar heating apparatus may perform solar heating at 7 am, but in areas where the diurnal temperature difference is large, the solar heating apparatus needs to perform solar heating at 7 am and half am.
For another example, in an area with a small day-night temperature difference, the solar heating device needs to be electrically heated at 7 pm, and in an area with a large day-night temperature difference, the solar heating device needs to be electrically heated at six pm.
FIG. 4 is a schematic diagram of a solar heating apparatus for solar heating of crude oil as provided herein, as shown in FIG. 4:
after the solar heat absorbing plate absorbs solar energy, the heat conducting oil valve 3 is opened, and heat conducting oil in the heat conducting oil tank 2 can enter a heat collecting area corresponding to the solar heat absorbing plate. The conduction oil heating is accomplished, and the heat exchange valve 4 of the heat storage water tank 6 is opened when the conduction oil enters the heat exchange module 5 through the pipeline, and the water in the heat storage water tank 6 enters the heat exchange module 5 and exchanges heat with the conduction oil. After the water in the heat storage water tank 6 is heated, the heating valve 7 is opened, so that the water in the heat storage water tank 6 enters the heating pipeline 8, and the heating pipeline 8 heats the crude oil heating area 9. Crude oil may enter and exit the crude oil heating zone through crude oil pipeline 10.
In addition, this application still is provided with when solar energy is insufficient, is used for electric power auxiliary heating's electric heating module 11, and under motor 12 power supply, electric heating module 11 begins work.
Fig. 5 is a schematic structural diagram of a solar heating apparatus for crude oil provided in the present application, as shown in fig. 5, the apparatus comprising:
at least one processor; and a memory communicatively coupled to the at least one processor. Wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to:
a first temperature from a first temperature sensor and a crude oil arrival time are obtained. The first temperature sensor is arranged in the crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with the solar heating device. And under the condition that the first temperature is lower than a first preset temperature value and the arrival time of the crude oil is higher than a preset time value, determining whether the solar heating device meets the heating condition. If yes, generating a solar heating instruction, sending the solar heating instruction to the control terminal, enabling the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area.
The embodiments in the present application are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and reference may be made to the partial description of the method embodiment for relevant points.
The devices and the methods provided by the embodiment of the application are in one-to-one correspondence, so the devices also have beneficial technical effects similar to the corresponding methods.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus comprising the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (8)
1. A method for solar heating of crude oil, the method comprising:
obtaining a first temperature from a first temperature sensor and a crude oil arrival time; the system comprises a solar heating device, a first temperature sensor, a second temperature sensor and a control device, wherein the first temperature sensor is arranged in a crude oil heating area which is provided with a heating pipeline connected with the solar heating device;
determining whether the solar heating device meets the heating condition or not under the condition that the first temperature is less than a first preset temperature value and the arrival time of the crude oil is greater than a preset time value;
if so, generating a solar heating instruction, sending the solar heating instruction to a control terminal to enable the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area;
wherein, confirm whether solar heating device satisfies the heating condition, specifically include:
obtaining a second temperature from a second temperature sensor and a third temperature from a third temperature sensor; the second temperature sensor is arranged in a heat storage water tank, and the heat storage water tank is connected with the front end and the tail end of the heating pipeline; the third temperature sensor is arranged on the solar heat absorption plate;
determining that the solar heating device meets the solar heating condition under the condition that the second temperature is lower than a second preset temperature value and the third temperature is higher than a third preset temperature value;
and sending the solar heating instruction to a control terminal so that the control terminal controls the solar heating device to operate, and the method specifically comprises the following steps:
generating and sending the solar heating instruction to a control terminal to enable the control terminal to control a heat conduction oil valve and a heat exchange valve of a heat storage water tank to be opened, enabling the solar heat absorption plate to heat the heat conduction oil, and enabling the heated heat conduction oil to preheat liquid in the heat storage water tank through a heat exchange module;
wherein the method further comprises:
determining an initial monitoring time interval during preheating of liquid in the hot water storage tank; determining a difference value between the second temperature and the second preset temperature value at the current monitoring moment according to the initial monitoring time interval;
and determining the monitoring time interval of the next monitoring moment based on the difference value between the second temperature and the second preset temperature value and the corresponding monitoring interval time table so as to monitor the second temperature until the second temperature is greater than or equal to the second preset temperature value.
2. The method of claim 1, wherein after the second temperature is greater than or equal to a second preset temperature value, the method further comprises:
generating and sending a heating valve opening instruction to the control terminal, so that the control terminal controls the heating valve of the heat storage water tank to be opened through the heating valve opening instruction, and liquid in the heat storage water tank enters the heating pipeline;
obtaining a fourth temperature from a fourth temperature sensor; wherein the fourth temperature sensor is arranged at the tail end of the heating pipeline;
and generating and sending a heating valve closing instruction to the control terminal under the condition that the temperature difference between the second temperature and the fourth temperature is smaller than a preset temperature difference.
3. The method of claim 2, further comprising:
determining a first rate of change of the first temperature based on a preset heating time interval;
first temperature change rate is less than first predetermined threshold value, just under the second temperature is more than or equal to the second and predetermines the condition of temperature value, generates and sends heating valve opening instruction extremely control terminal, so that liquid in the hot water storage tank gets into heating pipeline will liquid in the heating pipeline carries out liquid exchange, until the second temperature with the temperature difference of fourth temperature is less than predetermine the difference in temperature.
4. The method of claim 3, further comprising:
determining whether the difference value between the second temperature and the second preset temperature value is within a preset interval or not under the condition that the first temperature change rate is smaller than a first preset threshold value and the second temperature is smaller than the second preset temperature value;
the second temperature with the difference of the second preset temperature value is not in the condition of presetting the interval, generate electric power and assist the heat instruction, and will electric power is assisted the heat instruction and is sent to control terminal, it is right to carry out electric heating for the heat storage water tank, until the second temperature is greater than or equal to the second preset temperature value, will liquid in the heating pipeline carries out liquid exchange.
5. The method of claim 1, further comprising:
acquiring a liquid level value from a liquid level sensor; the liquid level sensor is arranged in the heat storage water tank;
under the condition that the level value is smaller than a preset lowest level value, generating and sending a water adding instruction to the control terminal so that a corresponding water adding device can add water to the hot water storage tank until the level value is not smaller than the preset water adding level value;
and in the process of adding water into the heat storage water tank, generating and sending a stirring instruction to the control terminal so as to enable the corresponding stirring device to stir the heat storage water tank.
6. The method of claim 1, further comprising:
determining that the solar heating device meets an electric power preheating condition under the conditions that the first temperature is less than a first preset temperature value, the second temperature is less than a second preset temperature value, and the third temperature is less than a third preset temperature value;
and under the condition that the solar heating device meets the electric power preheating condition, generating and transmitting an electric power preheating command to a control terminal so as to enable the control terminal to control an electric heating module to preheat liquid in the hot water storage tank.
7. The method according to claim 1, wherein the preheating of the liquid in the hot water storage tank by the heated heat transfer oil comprises:
determining the temperature of liquid in the hot water storage tank at the first inlet of the heat exchange module as a fifth temperature; the first inlet of the heat exchange module is connected with the heat storage water tank;
determining the temperature of liquid in the hot water storage tank at a first outlet of the heat exchange module as a sixth temperature; a first outlet of the heat exchange module is connected with the heat storage water tank;
the difference value of the fifth temperature and the sixth temperature is greater than a second preset threshold value, the second temperature is less than under the condition that the second preset temperature value exists, a liquid circulation instruction is generated and sent to the control terminal, so that the control terminal controls the circulation pump to operate, liquid in the heat exchange module and liquid in the heat storage water tank circulate, and therefore the heated heat conduction oil is right to the liquid in the heat storage water tank is preheated until the second temperature is not less than the second preset temperature value.
8. A solar heating apparatus for crude oil, characterized in that the apparatus comprises:
at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform functions of:
obtaining a first temperature from a first temperature sensor and a crude oil arrival time; the first temperature sensor is arranged in a crude oil heating area, and the crude oil heating area is provided with a heating pipeline connected with a solar heating device;
determining whether the solar heating device meets the heating condition or not under the condition that the first temperature is less than a first preset temperature value and the arrival time of the crude oil is greater than a preset time value;
if so, generating a solar heating instruction, sending the solar heating instruction to a control terminal to enable the control terminal to control the solar heating device to operate, and preheating the crude oil heating area through the heating pipeline before the crude oil reaches the crude oil heating area;
wherein the at least one processor is specifically capable of:
obtaining a second temperature from a second temperature sensor and a third temperature from a third temperature sensor; the second temperature sensor is arranged on a heat storage water tank, and the heat storage water tank is connected with the front end and the tail end of the heating pipeline; the third temperature sensor is arranged on the solar heat absorption plate;
determining that the solar heating device meets the solar heating condition under the condition that the second temperature is lower than a second preset temperature value and the third temperature is higher than a third preset temperature value;
the at least one processor may be further configured to:
generating and sending the solar heating instruction to a control terminal to enable the control terminal to control a heat conduction oil valve and a heat exchange valve of a heat storage water tank to be opened, enabling the solar heat absorption plate to heat the heat conduction oil, and enabling the heated heat conduction oil to preheat liquid in the heat storage water tank through a heat exchange module;
wherein the at least one processor is further capable of:
determining an initial monitoring time interval during preheating of liquid in the hot water storage tank;
determining a difference value between the second temperature and the second preset temperature value at the current monitoring moment according to the initial monitoring time interval;
and determining a monitoring time interval of the next monitoring moment based on the difference value between the second temperature and the second preset temperature value and a corresponding monitoring interval time table so as to monitor the second temperature until the second temperature is greater than or equal to the second preset temperature value.
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| CN100489373C (en) * | 2005-03-25 | 2009-05-20 | 华南理工大学 | Heating equipment for crude oil gathering and transferring, and heating method thereof |
| CN100424407C (en) * | 2005-03-25 | 2008-10-08 | 华南理工大学 | Control apparatus and control method for solar heating in crude oil gathering and transportation |
| US7624743B2 (en) * | 2006-09-14 | 2009-12-01 | Halliburton Energy Services, Inc. | Methods and compositions for thermally treating a conduit used for hydrocarbon production or transmission to help remove paraffin wax buildup |
| CN201844201U (en) * | 2010-10-29 | 2011-05-25 | 中国石油天然气股份有限公司 | Heating system of crude oil collection and transportation pipeline |
| CN102425706A (en) * | 2011-10-12 | 2012-04-25 | 无锡同春新能源科技有限公司 | Conveying petroleum pipeline with solar photovoltaic power generation wall temperature increasing device |
| CN104420850B (en) * | 2013-09-11 | 2017-02-08 | 中国石油天然气股份有限公司 | Well field raw oil heating device, heating system and heating control method |
| CN104613660B (en) * | 2015-02-14 | 2016-08-31 | 武汉九头鸟太阳能热水器有限公司 | A kind of Intelligent Remote Control System for solar water heater |
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Effective date of registration: 20230506 Address after: 2109E5, Jinzhonghuan International Business Building, 3037 Jintian Road, Fu'an Community, Futian District, Shenzhen City, Guangdong Province, 518000 Patentee after: Shenzhen Shangyang Energy Co.,Ltd. Address before: Room 318, floor 3, building 4-5, No. 4 building, No. 11 courtyard, Lianhuachi Cili, Fengtai District, Beijing 100071 Patentee before: Shangyang energy storage (Beijing) Technology Co.,Ltd. |